Changes to CHANGES.md.
Changes to README.md.
Changes to fnc.bld.mk.
Deleted include/diff.h.
Changes to include/settings.h.
Changes to lib/libfossil.c.
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}
}
#endif
else{
char const * zLocalRoot;
char const * zFull;
fsl_size_t nLocalRoot;
fsl_size_t nFull = 0;
fsl_size_t nFull;
fsl_buffer * const full = fsl__cx_scratchpad(f);
int (*xCmp)(char const *, char const *,fsl_size_t);
bool endsWithSlash;
assert(f->ckout.dir);
zLocalRoot = f->ckout.dir;
assert(zLocalRoot);
assert(*zLocalRoot);
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fsl__cx_scratchpad_yield(f, fname);
return rc;
}
int fsl_card_F_ckout_mtime(fsl_cx * const f,
fsl_id_t vid,
fsl_card_F const * fc,
fsl_time_t * const repoMtime,
fsl_time_t * const localMtime){
fsl_time_t * repoMtime,
fsl_time_t * localMtime){
int rc = 0;
fsl_id_t fid = 0;
fsl_fstat fst = fsl_fstat_empty;
if(!fsl_needs_ckout(f)) return FSL_RC_NOT_A_CKOUT;
if(0>=vid){
fsl_ckout_version_info(f, &vid, NULL);
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fsl_cx * f = fcli.f;
assert(f);
if(fcli.transient.repoDbArg){
FCLI_V3(("Trying to open repo db file [%s]...\n", fcli.transient.repoDbArg));
rc = fsl_repo_open( f, fcli.transient.repoDbArg );
}
else if(fcli.clientFlags.checkoutDir){
fsl_buffer dir = fsl_buffer_empty;
char const * dirName = fcli.clientFlags.checkoutDir;
FCLI_V3(("Trying to open checkout from [%s]...\n",
dirName));
rc = fsl_ckout_open_dir(f, dirName, true);
FCLI_V3(("checkout open rc=%s\n", fsl_rc_cstr(rc)));
/* if(FSL_RC_NOT_FOUND==rc) rc = FSL_RC_NOT_A_CKOUT; */
if(rc){
if(!fsl_cx_err_get(f,NULL,NULL)){
rc = fsl_cx_err_set(f, rc, "Opening of checkout under "
"[%s] failed with code %d (%s).",
dirName, rc, fsl_rc_cstr(rc));
}
}
fsl_buffer_reserve(&dir, 0);
if(rc) return rc;
}
if(!rc){
if(fcli.clientFlags.verbose>1){
fsl_db * dbC = fsl_cx_db_ckout(f);
fsl_db * dbR = fsl_cx_db_repo(f);
if(dbC){
|
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assert('/' == f->ckout.dir[f->ckout.dirLen-1]);
f->flags |= FSL_CX_F_IS_OPENING_CKOUT;
rc = fsl_repo_open_for_ckout(f);
f->flags &= ~FSL_CX_F_IS_OPENING_CKOUT;
if(!rc) rc = fsl_cx_after_open(f);
if(rc){
/* Is this sane? Is not doing it sane? */
fsl_close_scm_dbs(f);
fsl_ckout_close(f);
}
}
end:
fsl__cx_scratchpad_yield(f, buf);
fsl__cx_scratchpad_yield(f, bufD);
return rc;
}
|
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f->cache.isCrosslinking = true;
}else{
fsl_cx_transaction_end(f, true);
}
return rc;
}
int fsl_deck_foreach(fsl_cx * const f, fsl_satype_e type,
fsl_deck_visitor_f visitor,
void * visitorState){
int rc = 0;
fsl_stmt q = fsl_stmt_empty;
switch(type){
case FSL_SATYPE_CHECKIN:
case FSL_SATYPE_FORUMPOST:
case FSL_SATYPE_CONTROL:
rc = fsl_cx_prepare(f, &q,
"SELECT objid FROM event WHERE type=%Q",
fsl_satype_event_cstr(type));
break;
case FSL_SATYPE_WIKI:
rc = fsl_cx_prepare(f, &q,
"SELECT x.rid AS mrid FROM tag t, tagxref x "
"WHERE x.tagid=t.tagid "
"AND t.tagname LIKE 'wiki-%%' "
"AND TYPEOF(x.value+0)='integer'"
// ^^^^ only 'wiki-%' tags which are wiki pages
"ORDER BY x.mtime DESC");
break;
case FSL_SATYPE_TICKET:
rc = fsl_cx_prepare(f, &q,
"SELECT rid FROM tagxref WHERE tagid IN "
"(SELECT tagid FROM tag WHERE tagname LIKE "
"'tkt-%%' AND LENGTH(tagname)=44) "
"ORDER BY mtime");
break;
case FSL_SATYPE_TECHNOTE:
rc = fsl_cx_prepare(f, &q,
"SELECT x.rid AS mrid FROM tag t, tagxref x "
"WHERE x.tagid=t.tagid "
"AND t.tagname LIKE 'event-%%' "
// ^^^^ only 'wiki-%' tags which are wiki pages
"ORDER BY x.mtime DESC");
break;
#if 0
case FSL_SATYPE_ANY:
/* This case leads to confusion because ATTACHMENT records are
recorded in the timeline as the underlying type of record to
which the attachment is applied. e.g. an attachment on a wiki
page is listed as a 'w' event. */
rc = fsl_cx_prepare(f, &q,
"SELECT objid FROM event WHERE type IN"
"(%Q, %Q, %Q, %Q, %Q) /*%s()*/",
fsl_satype_event_cstr(FSL_SATYPE_CHECKIN),
fsl_satype_event_cstr(FSL_SATYPE_TICKET),
fsl_satype_event_cstr(FSL_SATYPE_FORUMPOST),
fsl_satype_event_cstr(FSL_SATYPE_WIKI),
fsl_satype_event_cstr(FSL_SATYPE_CONTROL),
__func__);
break;
#endif
default:
return fsl_cx_err_set(f, FSL_RC_TYPE,
"Artifact type [%s] is not currently "
"supported by %s().",
fsl_satype_cstr(type),
__func__);
}
while(0==rc && (FSL_RC_STEP_ROW==fsl_stmt_step(&q))){
fsl_id_t const rid = fsl_stmt_g_id(&q, 0);
fsl_deck d = fsl_deck_empty;
rc = fsl_deck_load_rid(f, &d, rid, type);
if(0==rc){
rc = visitor(f, &d, visitorState);
}
fsl_deck_finalize(&d);
if(FSL_RC_BREAK==rc){
rc = 0;
break;
}
}
fsl_stmt_finalize(&q);
return rc;
}
#undef MARKER
#undef AGE_FUDGE_WINDOW
#undef AGE_ADJUST_INCREMENT
#undef F_at
/* end of file ./src/deck.c */
/* start of file ./src/delta.c */
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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|
return fsl_delta_apply2(zSrc, lenSrc_, zDelta, lenDelta_, zOut, NULL);
}
#undef NHASH
#undef DEBUG1
#undef DEBUG2
/* end of file ./src/delta.c */
/* start of file ./src/dibu.c */
/* start of file ./src/diff.c */
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/*
Copyright 2022 The Libfossil Authors, see LICENSES/BSD-2-Clause.txt
Copyright 2013-2021 The Libfossil Authors, see LICENSES/BSD-2-Clause.txt
SPDX-License-Identifier: BSD-2-Clause-FreeBSD
SPDX-FileCopyrightText: 2013-2022 The Libfossil Authors
SPDX-FileCopyrightText: 2021 The Libfossil Authors
SPDX-ArtifactOfProjectName: Libfossil
SPDX-FileType: Code
Heavily indebted to the Fossil SCM project (https://fossil-scm.org).
*/
/************************************************************************
This file houses the "dibu" (Diff Builder) routines.
This file houses Fossil's diff-generation routines (as opposed to
the delta-generation).
*/
#include <assert.h>
#include <memory.h>
#include <stdlib.h>
#include <string.h> /* for memmove()/strlen() */
/**
Length of a dline
*/
#define LENGTH(X) ((X)->n)
/**
Minimum of two values
*/
static int minInt(int a, int b){ return a<b ? a : b; }
/**
Compute the optimal longest common subsequence (LCS) using an
exhaustive search. This version of the LCS is only used for
shorter input strings since runtime is O(N*N) where N is the
input string length.
*/
static void fsl__diff_optimal_lcs(
fsl__diff_cx * const p, /* Two files being compared */
int iS1, int iE1, /* Range of lines in p->aFrom[] */
int iS2, int iE2, /* Range of lines in p->aTo[] */
int *piSX, int *piEX, /* Write p->aFrom[] common segment here */
int *piSY, int *piEY /* Write p->aTo[] common segment here */
){
int mxLength = 0; /* Length of longest common subsequence */
int i, j; /* Loop counters */
int k; /* Length of a candidate subsequence */
int iSXb = iS1; /* Best match so far */
int iSYb = iS2; /* Best match so far */
for(i=iS1; i<iE1-mxLength; i++){
for(j=iS2; j<iE2-mxLength; j++){
if( p->cmpLine(&p->aFrom[i], &p->aTo[j]) ) continue;
if( mxLength && p->cmpLine(&p->aFrom[i+mxLength], &p->aTo[j+mxLength]) ){
continue;
}
k = 1;
while( i+k<iE1 && j+k<iE2 && p->cmpLine(&p->aFrom[i+k],&p->aTo[j+k])==0 ){
k++;
}
if( k>mxLength ){
iSXb = i;
iSYb = j;
mxLength = k;
}
}
}
*piSX = iSXb;
*piEX = iSXb + mxLength;
*piSY = iSYb;
*piEY = iSYb + mxLength;
}
/**
Compare two blocks of text on lines iS1 through iE1-1 of the aFrom[]
file and lines iS2 through iE2-1 of the aTo[] file. Locate a sequence
of lines in these two blocks that are exactly the same. Return
the bounds of the matching sequence.
If there are two or more possible answers of the same length, the
returned sequence should be the one closest to the center of the
input range.
Ideally, the common sequence should be the longest possible common
sequence. However, an exact computation of LCS is O(N*N) which is
way too slow for larger files. So this routine uses an O(N)
heuristic approximation based on hashing that usually works about
as well. But if the O(N) algorithm doesn't get a good solution
and N is not too large, we fall back to an exact solution by
calling fsl__diff_optimal_lcs().
*/
static void fsl__diff_lcs(
fsl__diff_cx * const p, /* Two files being compared */
int iS1, int iE1, /* Range of lines in p->aFrom[] */
int iS2, int iE2, /* Range of lines in p->aTo[] */
int *piSX, int *piEX, /* Write p->aFrom[] common segment here */
int *piSY, int *piEY /* Write p->aTo[] common segment here */
){
int i, j, k; /* Loop counters */
int n; /* Loop limit */
fsl_dline *pA, *pB; /* Pointers to lines */
int iSX, iSY, iEX, iEY; /* Current match */
int skew = 0; /* How lopsided is the match */
int dist = 0; /* Distance of match from center */
int mid; /* Center of the chng */
int iSXb, iSYb, iEXb, iEYb; /* Best match so far */
int iSXp, iSYp, iEXp, iEYp; /* Previous match */
sqlite3_int64 bestScore; /* Best score so far */
sqlite3_int64 score; /* Score for current candidate LCS */
int span; /* combined width of the input sequences */
int cutoff = 4; /* Max hash chain entries to follow */
int nextCutoff = -1; /* Value of cutoff for next iteration */
span = (iE1 - iS1) + (iE2 - iS2);
bestScore = -10000;
score = 0;
iSXb = iSXp = iS1;
iEXb = iEXp = iS1;
iSYb = iSYp = iS2;
iEYb = iEYp = iS2;
mid = (iE1 + iS1)/2;
do{
nextCutoff = 0;
for(i=iS1; i<iE1; i++){
int limit = 0;
j = p->aTo[p->aFrom[i].h % p->nTo].iHash;
while( j>0
&& (j-1<iS2 || j>=iE2 || p->cmpLine(&p->aFrom[i], &p->aTo[j-1]))
){
if( limit++ > cutoff ){
j = 0;
nextCutoff = cutoff*4;
break;
}
j = p->aTo[j-1].iNext;
}
if( j==0 ) continue;
assert( i>=iSXb && i>=iSXp );
if( i<iEXb && j>=iSYb && j<iEYb ) continue;
if( i<iEXp && j>=iSYp && j<iEYp ) continue;
iSX = i;
iSY = j-1;
pA = &p->aFrom[iSX-1];
pB = &p->aTo[iSY-1];
n = minInt(iSX-iS1, iSY-iS2);
for(k=0; k<n && p->cmpLine(pA,pB)==0; k++, pA--, pB--){}
iSX -= k;
iSY -= k;
iEX = i+1;
iEY = j;
pA = &p->aFrom[iEX];
pB = &p->aTo[iEY];
n = minInt(iE1-iEX, iE2-iEY);
for(k=0; k<n && p->cmpLine(pA,pB)==0; k++, pA++, pB++){}
iEX += k;
iEY += k;
skew = (iSX-iS1) - (iSY-iS2);
if( skew<0 ) skew = -skew;
dist = (iSX+iEX)/2 - mid;
if( dist<0 ) dist = -dist;
score = (iEX - iSX)*(sqlite3_int64)span - (skew + dist);
if( score>bestScore ){
bestScore = score;
iSXb = iSX;
iSYb = iSY;
iEXb = iEX;
iEYb = iEY;
}else if( iEX>iEXp ){
iSXp = iSX;
iSYp = iSY;
iEXp = iEX;
iEYp = iEY;
}
}
}while( iSXb==iEXb && nextCutoff && (cutoff=nextCutoff)<=64 );
if( iSXb==iEXb && (sqlite3_int64)(iE1-iS1)*(iE2-iS2)<2500 ){
fsl__diff_optimal_lcs(p, iS1, iE1, iS2, iE2, piSX, piEX, piSY, piEY);
}else{
*piSX = iSXb;
*piSY = iSYb;
*piEX = iEXb;
*piEY = iEYb;
}
}
void fsl__dump_triples(fsl__diff_cx const * const p,
char const * zFile, int ln ){
// Compare this with (fossil xdiff --raw) on the same inputs
fprintf(stderr,"%s:%d: Compare this with (fossil xdiff --raw) on the same inputs:\n",
zFile, ln);
for(int i = 0; p->aEdit[i] || p->aEdit[i+1] || p->aEdit[i+2]; i+=3){
printf(" copy %6d delete %6d insert %6d\n",
p->aEdit[i], p->aEdit[i+1], p->aEdit[i+2]);
}
}
/** @internal
Expand the size of p->aEdit array to hold at least nEdit elements.
*/
static int fsl__diff_expand_edit(fsl__diff_cx * const p, int nEdit){
void * re = fsl_realloc(p->aEdit, nEdit*sizeof(int));
if(!re) return FSL_RC_OOM;
else{
p->aEdit = (int*)re;
p->nEditAlloc = nEdit;
return 0;
}
}
/**
Append a new COPY/DELETE/INSERT triple.
Returns 0 on success, FSL_RC_OOM on OOM.
*/
static int appendTriple(fsl__diff_cx *p, int nCopy, int nDel, int nIns){
/* printf("APPEND %d/%d/%d\n", nCopy, nDel, nIns); */
if( p->nEdit>=3 ){
if( p->aEdit[p->nEdit-1]==0 ){
if( p->aEdit[p->nEdit-2]==0 ){
p->aEdit[p->nEdit-3] += nCopy;
p->aEdit[p->nEdit-2] += nDel;
p->aEdit[p->nEdit-1] += nIns;
return 0;
}
if( nCopy==0 ){
p->aEdit[p->nEdit-2] += nDel;
p->aEdit[p->nEdit-1] += nIns;
return 0;
}
}
if( nCopy==0 && nDel==0 ){
p->aEdit[p->nEdit-1] += nIns;
return 0;
}
}
if( p->nEdit+3>p->nEditAlloc ){
int const rc = fsl__diff_expand_edit(p, p->nEdit*2 + 15);
if(rc) return rc;
else if( p->aEdit==0 ) return 0;
}
p->aEdit[p->nEdit++] = nCopy;
p->aEdit[p->nEdit++] = nDel;
p->aEdit[p->nEdit++] = nIns;
return 0;
}
/**
Do a single step in the difference. Compute a sequence of
copy/delete/insert steps that will convert lines iS1 through iE1-1
of the input into lines iS2 through iE2-1 of the output and write
that sequence into the difference context.
The algorithm is to find a block of common text near the middle of
the two segments being diffed. Then recursively compute
differences on the blocks before and after that common segment.
Special cases apply if either input segment is empty or if the two
segments have no text in common.
*/
static int diff_step(fsl__diff_cx *p, int iS1, int iE1, int iS2, int iE2){
int iSX, iEX, iSY, iEY;
int rc = 0;
if( iE1<=iS1 ){
/* The first segment is empty */
if( iE2>iS2 ){
rc = appendTriple(p, 0, 0, iE2-iS2);
}
return rc;
}
if( iE2<=iS2 ){
/* The second segment is empty */
return appendTriple(p, 0, iE1-iS1, 0);
}
/* Find the longest matching segment between the two sequences */
fsl__diff_lcs(p, iS1, iE1, iS2, iE2, &iSX, &iEX, &iSY, &iEY);
if( iEX>iSX ){
/* A common segment has been found.
Recursively diff either side of the matching segment */
rc = diff_step(p, iS1, iSX, iS2, iSY);
if(!rc){
if(iEX>iSX){
rc = appendTriple(p, iEX - iSX, 0, 0);
}
if(!rc) rc = diff_step(p, iEX, iE1, iEY, iE2);
}
}else{
/* The two segments have nothing in common. Delete the first then
insert the second. */
rc = appendTriple(p, 0, iE1-iS1, iE2-iS2);
}
return rc;
}
int fsl__diff_all(fsl__diff_cx * const p){
int mnE, iS, iE1, iE2;
int rc = 0;
/* Carve off the common header and footer */
iE1 = p->nFrom;
iE2 = p->nTo;
while( iE1>0 && iE2>0 && p->cmpLine(&p->aFrom[iE1-1], &p->aTo[iE2-1])==0 ){
iE1--;
iE2--;
}
mnE = iE1<iE2 ? iE1 : iE2;
for(iS=0; iS<mnE && p->cmpLine(&p->aFrom[iS],&p->aTo[iS])==0; iS++){}
/* do the difference */
if( iS>0 ){
rc = appendTriple(p, iS, 0, 0);
if(rc) return rc;
}
rc = diff_step(p, iS, iE1, iS, iE2);
//fsl__dump_triples(p, __FILE__, __LINE__);
if(rc) return rc;
else if( iE1<p->nFrom ){
rc = appendTriple(p, p->nFrom - iE1, 0, 0);
if(rc) return rc;
}
/* Terminate the COPY/DELETE/INSERT triples with three zeros */
rc = fsl__diff_expand_edit(p, p->nEdit+3);
if(0==rc){
if(p->aEdit ){
p->aEdit[p->nEdit++] = 0;
p->aEdit[p->nEdit++] = 0;
p->aEdit[p->nEdit++] = 0;
//fsl__dump_triples(p, __FILE__, __LINE__);
}
}
return rc;
}
/*
Attempt to shift insertion or deletion blocks so that they begin and
end on lines that are pure whitespace. In other words, try to transform
this:
int func1(int x){
return x*10;
+}
+
+int func2(int x){
+ return x*20;
}
int func3(int x){
return x/5;
}
Into one of these:
int func1(int x){ int func1(int x){
return x*10; return x*10;
} }
+
+int func2(int x){ +int func2(int x){
+ return x*20; + return x*20;
+} +}
+
int func3(int x){ int func3(int x){
return x/5; return x/5;
} }
*/
void fsl__diff_optimize(fsl__diff_cx * const p){
int r; /* Index of current triple */
int lnFrom; /* Line number in p->aFrom */
int lnTo; /* Line number in p->aTo */
int cpy, del, ins;
//fsl__dump_triples(p, __FILE__, __LINE__);
lnFrom = lnTo = 0;
for(r=0; r<p->nEdit; r += 3){
cpy = p->aEdit[r];
del = p->aEdit[r+1];
ins = p->aEdit[r+2];
lnFrom += cpy;
lnTo += cpy;
/* Shift insertions toward the beginning of the file */
while( cpy>0 && del==0 && ins>0 ){
fsl_dline *pTop = &p->aFrom[lnFrom-1]; /* Line before start of insert */
fsl_dline *pBtm = &p->aTo[lnTo+ins-1]; /* Last line inserted */
if( p->cmpLine(pTop, pBtm) ) break;
if( LENGTH(pTop+1)+LENGTH(pBtm)<=LENGTH(pTop)+LENGTH(pBtm-1) ) break;
lnFrom--;
lnTo--;
p->aEdit[r]--;
p->aEdit[r+3]++;
cpy--;
}
/* Shift insertions toward the end of the file */
while( r+3<p->nEdit && p->aEdit[r+3]>0 && del==0 && ins>0 ){
fsl_dline *pTop = &p->aTo[lnTo]; /* First line inserted */
fsl_dline *pBtm = &p->aTo[lnTo+ins]; /* First line past end of insert */
if( p->cmpLine(pTop, pBtm) ) break;
if( LENGTH(pTop)+LENGTH(pBtm-1)<=LENGTH(pTop+1)+LENGTH(pBtm) ) break;
lnFrom++;
lnTo++;
p->aEdit[r]++;
p->aEdit[r+3]--;
cpy++;
}
/* Shift deletions toward the beginning of the file */
while( cpy>0 && del>0 && ins==0 ){
fsl_dline *pTop = &p->aFrom[lnFrom-1]; /* Line before start of delete */
fsl_dline *pBtm = &p->aFrom[lnFrom+del-1]; /* Last line deleted */
if( p->cmpLine(pTop, pBtm) ) break;
if( LENGTH(pTop+1)+LENGTH(pBtm)<=LENGTH(pTop)+LENGTH(pBtm-1) ) break;
lnFrom--;
lnTo--;
p->aEdit[r]--;
p->aEdit[r+3]++;
cpy--;
}
/* Shift deletions toward the end of the file */
while( r+3<p->nEdit && p->aEdit[r+3]>0 && del>0 && ins==0 ){
fsl_dline *pTop = &p->aFrom[lnFrom]; /* First line deleted */
fsl_dline *pBtm = &p->aFrom[lnFrom+del]; /* First line past end of delete */
if( p->cmpLine(pTop, pBtm) ) break;
if( LENGTH(pTop)+LENGTH(pBtm-1)<=LENGTH(pTop)+LENGTH(pBtm) ) break;
lnFrom++;
lnTo++;
p->aEdit[r]++;
p->aEdit[r+3]--;
cpy++;
}
lnFrom += del;
lnTo += ins;
}
//fsl__dump_triples(p, __FILE__, __LINE__);
}
#if !defined(FSL_OMIT_DEPRECATED)
#define MARKER(pfexp) \
do{ printf("MARKER: %s:%d:%s():\t",__FILE__,__LINE__,__func__); \
printf pfexp; \
} while(0)
typedef uint64_t u64;
typedef void ReCompiled /* porting crutch. i would strongly prefer to
replace the regex support with a stateful
predicate callback.
*/;
#define DIFF_CONTEXT_MASK ((u64)0x0000ffff) /* Lines of context. Default if 0 */
#define DIFF_WIDTH_MASK ((u64)0x00ff0000) /* side-by-side column width */
#define DIFF_IGNORE_EOLWS ((u64)0x01000000) /* Ignore end-of-line whitespace */
#define DIFF_IGNORE_ALLWS ((u64)0x03000000) /* Ignore all whitespace */
#define DIFF_SIDEBYSIDE ((u64)0x04000000) /* Generate a side-by-side diff */
#define DIFF_VERBOSE ((u64)0x08000000) /* Missing shown as empty files */
#define DIFF_BRIEF ((u64)0x10000000) /* Show filenames only */
#define DIFF_HTML ((u64)0x20000000) /* Render for HTML */
#define DIFF_LINENO ((u64)0x40000000) /* Show line numbers */
#define DIFF_NOOPT (((u64)0x01)<<32) /* Suppress optimizations (debug) */
#define DIFF_INVERT (((u64)0x02)<<32) /* Invert the diff (debug) */
#define DIFF_CONTEXT_EX (((u64)0x04)<<32) /* Use context even if zero */
#define DIFF_NOTTOOBIG (((u64)0x08)<<32) /* Only display if not too big */
#define DIFF_STRIP_EOLCR (((u64)0x10)<<32) /* Strip trailing CR */
/*
ANSI escape codes: https://en.wikipedia.org/wiki/ANSI_escape_code
*/
#define ANSI_COLOR_BLACK(BOLD) ((BOLD) ? "\x1b[30m" : "\x1b[30m")
#define ANSI_COLOR_RED(BOLD) ((BOLD) ? "\x1b[31;1m" : "\x1b[31m")
#define ANSI_COLOR_GREEN(BOLD) ((BOLD) ? "\x1b[32;1m" : "\x1b[32m")
#define ANSI_COLOR_YELLOW(BOLD) ((BOLD) ? "\x1b[33;1m" : "\x1b[33m")
#define ANSI_COLOR_BLUE(BOLD) ((BOLD) ? "\x1b[34;1m" : "\x1b[34m")
#define ANSI_COLOR_MAGENTA(BOLD) ((BOLD) ? "\x1b[35;1m" : "\x1b[35m")
#define ANSI_COLOR_CYAN(BOLD) ((BOLD) ? "\x1b[36;1m" : "\x1b[36m")
#define ANSI_COLOR_WHITE(BOLD) ((BOLD) ? "\x1b[37;1m" : "\x1b[37m")
#define ANSI_DIFF_ADD(BOLD) ANSI_COLOR_GREEN(BOLD)
#define ANSI_DIFF_RM(BOLD) ANSI_COLOR_RED(BOLD)
#define ANSI_DIFF_MOD(BOLD) ANSI_COLOR_BLUE(BOLD)
#define ANSI_BG_BLACK(BOLD) ((BOLD) ? "\x1b[40;1m" : "\x1b[40m")
#define ANSI_BG_RED(BOLD) ((BOLD) ? "\x1b[41;1m" : "\x1b[41m")
#define ANSI_BG_GREEN(BOLD) ((BOLD) ? "\x1b[42;1m" : "\x1b[42m")
#define ANSI_BG_YELLOW(BOLD) ((BOLD) ? "\x1b[43;1m" : "\x1b[43m")
#define ANSI_BG_BLUE(BOLD) ((BOLD) ? "\x1b[44;1m" : "\x1b[44m")
#define ANSI_BG_MAGENTA(BOLD) ((BOLD) ? "\x1b[45;1m" : "\x1b[45m")
#define ANSI_BG_CYAN(BOLD) ((BOLD) ? "\x1b[46;1m" : "\x1b[46m")
#define ANSI_BG_WHITE(BOLD) ((BOLD) ? "\x1b[47;1m" : "\x1b[47m")
#define ANSI_RESET_COLOR "\x1b[39;49m"
#define ANSI_RESET_ALL "\x1b[0m"
#define ANSI_RESET ANSI_RESET_ALL
/*#define ANSI_BOLD ";1m"*/
/**
Converts mask of public fsl_diff_flag_t (32-bit) values to the
Fossil-internal 64-bit bitmask used by the DIFF_xxx macros. Why?
(A) fossil(1) uses the macro approach and a low-level encoding of
data in the bitmask (e.g. the context lines count). The public API
hides the lower-level flags and allows the internal API to take
care of the encoding.
*/
static uint64_t fsl_diff_flags_convert( int mask ){
uint64_t rc = 0U;
#define DO(F) if( (mask & F)==F ) rc |= (((u64)F) << 24)
DO(FSL_DIFF2_IGNORE_EOLWS);
DO(FSL_DIFF2_IGNORE_ALLWS);
DO(FSL_DIFF2_LINE_NUMBERS);
DO(FSL_DIFF_SIDEBYSIDE);
DO(FSL_DIFF2_NOTTOOBIG);
DO(FSL_DIFF2_STRIP_EOLCR);
DO(FSL_DIFF_VERBOSE);
DO(FSL_DIFF_BRIEF);
DO(FSL_DIFF_HTML);
DO(FSL_DIFF_NOOPT);
DO(FSL_DIFF_INVERT);
#undef DO
return rc;
}
/**
Holds output state for diff generation.
*/
struct DiffOutState {
/** Output callback. */
fsl_output_f out;
/** State for this->out(). */
void * oState;
/** For propagating output errors. */
int rc;
char ansiColor;
};
typedef struct DiffOutState DiffOutState;
static const DiffOutState DiffOutState_empty = {
NULL/*out*/,
NULL/*oState*/,
0/*rc*/,
0/*useAnsiColor*/
};
/**
Internal helper. Sends src to o->out(). If n is negative, fsl_strlen()
is used to determine the length.
*/
static int diff_out( DiffOutState * const o, void const * src, fsl_int_t n ){
return o->rc = n
? o->out(o->oState, src, n<0 ? fsl_strlen((char const *)src) : (fsl_size_t)n)
: 0;
}
/**
fsl_output_f() impl for use with diff_outf(). state must be a
(DiffOutState*).
*/
static int fsl_output_f_diff_out( void * state, void const * src,
fsl_size_t n ){
DiffOutState * const os = (DiffOutState *)state;
return os->rc = os->out(os->oState, src, n);
}
static int diff_outf( DiffOutState * o, char const * fmt, ... ){
va_list va;
va_start(va,fmt);
fsl_appendfv(fsl_output_f_diff_out, o, fmt, va);
va_end(va);
return o->rc;
}
/*
Append a single line of context-diff output to pOut.
*/
static int appendDiffLine(
DiffOutState *const pOut, /* Where to write the line of output */
char cPrefix, /* One of " ", "+", or "-" */
fsl_dline *pLine, /* The line to be output */
int html, /* True if generating HTML. False for plain text */
ReCompiled *pRe /* Colorize only if line matches this Regex */
){
int rc = 0;
char const * ansiPrefix =
!pOut->ansiColor
? NULL
: (('+'==cPrefix)
? ANSI_DIFF_ADD(0)
: (('-'==cPrefix) ? ANSI_DIFF_RM(0) : NULL))
;
if(ansiPrefix) rc = diff_out(pOut, ansiPrefix, -1 );
if(!rc) rc = diff_out(pOut, &cPrefix, 1);
if(rc) return rc;
else if( html ){
#if 0
if( pRe /*MISSING: && re_dline_match(pRe, pLine, 1)==0 */ ){
cPrefix = ' ';
}else
#endif
if( cPrefix=='+' ){
rc = diff_out(pOut, "<span class=\"fsl-diff-add\">", -1);
}else if( cPrefix=='-' ){
rc = diff_out(pOut, "<span class=\"fsl-diff-rm\">", -1);
}
if(!rc){
/* unsigned short n = pLine->n; */
/* while( n>0 && (pLine->z[n-1]=='\n' || pLine->z[n-1]=='\r') ) n--; */
rc = pOut->rc = fsl_htmlize(pOut->out, pOut->oState,
pLine->z, pLine->n);
if( !rc && cPrefix!=' ' ){
rc = diff_out(pOut, "</span>", -1);
}
}
}else{
rc = diff_out(pOut, pLine->z, pLine->n);
}
if(!rc){
if(ansiPrefix){
rc = diff_out(pOut, ANSI_RESET, -1 );
}
if(!rc) rc = diff_out(pOut, "\n", 1);
}
return rc;
}
/*
Add two line numbers to the beginning of an output line for a context
diff. One or the other of the two numbers might be zero, which means
to leave that number field blank. The "html" parameter means to format
the output for HTML.
*/
static int appendDiffLineno(DiffOutState *pOut, int lnA,
int lnB, int html){
int rc = 0;
if( html ){
rc = diff_out(pOut, "<span class=\"fsl-diff-lineno\">", -1);
}
if(!rc){
if( lnA>0 ){
rc = diff_outf(pOut, "%6d ", lnA);
}else{
rc = diff_out(pOut, " ", 7);
}
}
if(!rc){
if( lnB>0 ){
rc = diff_outf(pOut, "%6d ", lnB);
}else{
rc = diff_out(pOut, " ", 8);
}
if( !rc && html ){
rc = diff_out(pOut, "</span>", -1);
}
}
return rc;
}
/**
Extract the number of lines of context from diffFlags.
*/
static int diff_context_lines(uint64_t diffFlags){
int n = diffFlags & DIFF_CONTEXT_MASK;
if( n==0 && (diffFlags & DIFF_CONTEXT_EX)==0 ) n = 5;
return n;
}
/*
Extract the width of columns for side-by-side diff. Supply an
appropriate default if no width is given.
*/
static int diff_width(uint64_t diffFlags){
int w = (diffFlags & DIFF_WIDTH_MASK)/(DIFF_CONTEXT_MASK+1);
if( w==0 ) w = 80;
return w;
}
/*
Given a raw diff p[] in which the p->aEdit[] array has been filled
in, compute a context diff into pOut.
*/
static int contextDiff(
fsl__diff_cx *p, /* The difference */
DiffOutState *pOut, /* Output a context diff to here */
ReCompiled *pRe, /* Only show changes that match this regex */
u64 diffFlags /* Flags controlling the diff format */
){
fsl_dline *A; /* Left side of the diff */
fsl_dline *B; /* Right side of the diff */
int a = 0; /* Index of next line in A[] */
int b = 0; /* Index of next line in B[] */
int *R; /* Array of COPY/DELETE/INSERT triples */
int r; /* Index into R[] */
int nr; /* Number of COPY/DELETE/INSERT triples to process */
int mxr; /* Maximum value for r */
int na, nb; /* Number of lines shown from A and B */
int i, j; /* Loop counters */
int m; /* Number of lines to output */
int skip; /* Number of lines to skip */
static int nChunk = 0; /* Number of diff chunks seen so far */
int nContext; /* Number of lines of context */
int showLn; /* Show line numbers */
int html; /* Render as HTML */
int showDivider = 0; /* True to show the divider between diff blocks */
int rc = 0;
nContext = diff_context_lines(diffFlags);
showLn = (diffFlags & DIFF_LINENO)!=0;
html = (diffFlags & DIFF_HTML)!=0;
A = p->aFrom;
B = p->aTo;
R = p->aEdit;
mxr = p->nEdit;
while( mxr>2 && R[mxr-1]==0 && R[mxr-2]==0 ){ mxr -= 3; }
for(r=0; r<mxr; r += 3*nr){
/* Figure out how many triples to show in a single block */
for(nr=1; R[r+nr*3]>0 && R[r+nr*3]<nContext*2; nr++){}
/* printf("r=%d nr=%d\n", r, nr); */
/* If there is a regex, skip this block (generate no diff output)
if the regex matches or does not match both insert and delete.
Only display the block if one side matches but the other side does
not.
*/
#if 0
/* MISSING: re. i would prefer a predicate function,
anyway.
*/
if( pRe ){
int hideBlock = 1;
int xa = a, xb = b;
for(i=0; hideBlock && i<nr; i++){
int c1, c2;
xa += R[r+i*3];
xb += R[r+i*3];
c1 = re_dline_match(pRe, &A[xa], R[r+i*3+1]);
c2 = re_dline_match(pRe, &B[xb], R[r+i*3+2]);
hideBlock = c1==c2;
xa += R[r+i*3+1];
xb += R[r+i*3+2];
}
if( hideBlock ){
a = xa;
b = xb;
continue;
}
}
#endif
/* For the current block comprising nr triples, figure out
how many lines of A and B are to be displayed
*/
if( R[r]>nContext ){
na = nb = nContext;
skip = R[r] - nContext;
}else{
na = nb = R[r];
skip = 0;
}
for(i=0; i<nr; i++){
na += R[r+i*3+1];
nb += R[r+i*3+2];
}
if( R[r+nr*3]>nContext ){
na += nContext;
nb += nContext;
}else{
na += R[r+nr*3];
nb += R[r+nr*3];
}
for(i=1; i<nr; i++){
na += R[r+i*3];
nb += R[r+i*3];
}
/* Show the header for this block, or if we are doing a modified
context diff that contains line numbers, show the separator from
the previous block.
*/
++nChunk;
if( showLn ){
if( !showDivider ){
/* Do not show a top divider */
showDivider = 1;
}else if( html ){
rc = diff_outf(pOut, "<span class=\"fsl-diff-hr\">%.80c</span>\n", '.');
}else{
rc = diff_outf(pOut, "%.80c\n", '.');
}
if( !rc && html ){
rc = diff_outf(pOut, "<span class=\"fsl-diff-chunk-%d\"></span>", nChunk);
}
}else{
char const * ansi1 = "";
char const * ansi2 = "";
char const * ansi3 = "";
if( html ) rc = diff_outf(pOut, "<span class=\"fsl-diff-lineno\">");
else if(0 && pOut->ansiColor){
/* Turns out this just confuses the output */
ansi1 = ANSI_DIFF_RM(0);
ansi2 = ANSI_DIFF_ADD(0);
ansi3 = ANSI_RESET;
}
/*
* If the patch changes an empty file or results in an empty file,
* the block header must use 0,0 as position indicator and not 1,0.
* Otherwise, patch would be confused and may reject the diff.
*/
if(!rc) rc = diff_outf(pOut,"@@ %s-%d,%d %s+%d,%d%s @@",
ansi1, na ? a+skip+1 : 0, na,
ansi2, nb ? b+skip+1 : 0, nb,
ansi3);
if( !rc ){
if( html ) rc = diff_outf(pOut, "</span>");
if(!rc) rc = diff_out(pOut, "\n", 1);
}
}
if(rc) return rc;
/* Show the initial common area */
a += skip;
b += skip;
m = R[r] - skip;
for(j=0; !rc && j<m; j++){
if( showLn ) rc = appendDiffLineno(pOut, a+j+1, b+j+1, html);
if(!rc) rc = appendDiffLine(pOut, ' ', &A[a+j], html, 0);
}
if(rc) return rc;
a += m;
b += m;
/* Show the differences */
for(i=0; i<nr; i++){
m = R[r+i*3+1];
for(j=0; !rc && j<m; j++){
if( showLn ) rc = appendDiffLineno(pOut, a+j+1, 0, html);
if(!rc) rc = appendDiffLine(pOut, '-', &A[a+j], html, pRe);
}
if(rc) return rc;
a += m;
m = R[r+i*3+2];
for(j=0; !rc && j<m; j++){
if( showLn ) rc = appendDiffLineno(pOut, 0, b+j+1, html);
if(!rc) rc = appendDiffLine(pOut, '+', &B[b+j], html, pRe);
}
if(rc) return rc;
b += m;
if( i<nr-1 ){
m = R[r+i*3+3];
for(j=0; !rc && j<m; j++){
if( showLn ) rc = appendDiffLineno(pOut, a+j+1, b+j+1, html);
if(!rc) rc = appendDiffLine(pOut, ' ', &A[a+j], html, 0);
}
if(rc) return rc;
b += m;
a += m;
}
}
/* Show the final common area */
assert( nr==i );
m = R[r+nr*3];
if( m>nContext ) m = nContext;
for(j=0; !rc && j<m; j++){
if( showLn ) rc = appendDiffLineno(pOut, a+j+1, b+j+1, html);
if(!rc) rc = appendDiffLine(pOut, ' ', &A[a+j], html, 0);
}
}/*big for() loop*/
return rc;
}
/*
Status of a single output line
*/
typedef struct SbsLine SbsLine;
struct SbsLine {
fsl_buffer *apCols[5]; /* Array of pointers to output columns */
int width; /* Maximum width of a column in the output */
unsigned char escHtml; /* True to escape html characters */
int iStart; /* Write zStart prior to character iStart */
const char *zStart; /* A <span> tag */
int iEnd; /* Write </span> prior to character iEnd */
int iStart2; /* Write zStart2 prior to character iStart2 */
const char *zStart2; /* A <span> tag */
int iEnd2; /* Write </span> prior to character iEnd2 */
ReCompiled *pRe; /* Only colorize matching lines, if not NULL */
DiffOutState * pOut;
};
/*
Column indices for SbsLine.apCols[]
*/
#define SBS_LNA 0 /* Left line number */
#define SBS_TXTA 1 /* Left text */
#define SBS_MKR 2 /* Middle separator column */
#define SBS_LNB 3 /* Right line number */
#define SBS_TXTB 4 /* Right text */
/*
Append newlines to all columns.
*/
static int sbsWriteNewlines(SbsLine *p){
int i;
int rc = 0;
for( i=p->escHtml ? SBS_LNA : SBS_TXTB; !rc && i<=SBS_TXTB; i++ ){
rc = fsl_buffer_append(p->apCols[i], "\n", 1);
}
return rc;
}
/*
Append n spaces to the column.
*/
static int sbsWriteSpace(SbsLine *p, int n, int col){
return fsl_buffer_appendf(p->apCols[col], "%*s", n, "");
}
/*
Write the text of pLine into column iCol of p.
If outputting HTML, write the full line. Otherwise, only write the
width characters. Translate tabs into spaces. Add newlines if col
is SBS_TXTB. Translate HTML characters if escHtml is true. Pad the
rendering to width bytes if col is SBS_TXTA and escHtml is false.
This comment contains multibyte unicode characters (�, �, �) in order
to test the ability of the diff code to handle such characters.
*/
static int sbsWriteText(SbsLine *p, fsl_dline *pLine, int col){
fsl_buffer *pCol = p->apCols[col];
int rc = 0;
int n = pLine->n;
int i; /* Number of input characters consumed */
int k; /* Cursor position */
int needEndSpan = 0;
const char *zIn = pLine->z;
int w = p->width;
int colorize = p->escHtml;
#if 0
/* MISSING: re bits, but want to replace those with a predicate. */
if( colorize && p->pRe && re_dline_match(p->pRe, pLine, 1)==0 ){
colorize = 0;
}
#endif
for(i=k=0; !rc && (p->escHtml || k<w) && i<n; i++, k++){
char c = zIn[i];
if( colorize ){
if( i==p->iStart ){
rc = fsl_buffer_append(pCol, p->zStart, -1);
if(rc) break;
needEndSpan = 1;
if( p->iStart2 ){
p->iStart = p->iStart2;
p->zStart = p->zStart2;
p->iStart2 = 0;
}
}else if( i==p->iEnd ){
rc = fsl_buffer_append(pCol, "</span>", 7);
if(rc) break;
needEndSpan = 0;
if( p->iEnd2 ){
p->iEnd = p->iEnd2;
p->iEnd2 = 0;
}
}
}
if( c=='\t' && !p->escHtml ){
rc = fsl_buffer_append(pCol, " ", 1);
while( !rc && (k&7)!=7 && (p->escHtml || k<w) ){
rc = fsl_buffer_append(pCol, " ", 1);
k++;
}
}else if( c=='\r' || c=='\f' ){
rc = fsl_buffer_append(pCol, " ", 1);
}else if( c=='<' && p->escHtml ){
rc = fsl_buffer_append(pCol, "<", 4);
}else if( c=='&' && p->escHtml ){
rc = fsl_buffer_append(pCol, "&", 5);
}else if( c=='>' && p->escHtml ){
rc = fsl_buffer_append(pCol, ">", 4);
}else if( c=='"' && p->escHtml ){
rc = fsl_buffer_append(pCol, """, 6);
}else{
rc = fsl_buffer_append(pCol, &zIn[i], 1);
if( (c&0xc0)==0x80 ) k--;
}
}
if( !rc && needEndSpan ){
rc = fsl_buffer_append(pCol, "</span>", 7);
}
if(!rc){
if( col==SBS_TXTB ){
rc = sbsWriteNewlines(p);
}else if( !p->escHtml ){
rc = sbsWriteSpace(p, w-k, SBS_TXTA);
}
}
return rc;
}
/*
Append a column to the final output blob.
*/
static int sbsWriteColumn(DiffOutState *pOut, fsl_buffer const *pCol, int col){
return diff_outf(pOut,
"<td><div class=\"fsl-diff-%s-col\">\n"
"<pre>\n"
"%b"
"</pre>\n"
"</div></td>\n",
col % 3 ? (col == SBS_MKR ? "separator" : "text") : "lineno",
pCol
);
}
/*
Append a separator line to column iCol
*/
static int sbsWriteSep(SbsLine *p, int len, int col){
char ch = '.';
if( len<1 ){
len = 1;
ch = ' ';
}
return fsl_buffer_appendf(p->apCols[col],
"<span class=\"fsl-diff-hr\">%.*c</span>\n",
len, ch);
}
/*
Append the appropriate marker into the center column of the diff.
*/
static int sbsWriteMarker(SbsLine *p, const char *zTxt,
const char *zHtml){
return fsl_buffer_append(p->apCols[SBS_MKR], p->escHtml ? zHtml : zTxt, -1);
}
/*
Append a line number to the column.
*/
static int sbsWriteLineno(SbsLine *p, int ln, int col){
int rc;
if( p->escHtml ){
rc = fsl_buffer_appendf(p->apCols[col], "%d", ln+1);
}else{
char zLn[8];
fsl_snprintf(zLn, 8, "%5d ", ln+1);
rc = fsl_buffer_appendf(p->apCols[col], "%s ", zLn);
}
return rc;
}
/*
The two text segments zLeft and zRight are known to be different on
both ends, but they might have a common segment in the middle. If
they do not have a common segment, return 0. If they do have a large
common segment, return 1 and before doing so set:
aLCS[0] = start of the common segment in zLeft
aLCS[1] = end of the common segment in zLeft
aLCS[2] = start of the common segment in zLeft
aLCS[3] = end of the common segment in zLeft
This computation is for display purposes only and does not have to be
optimal or exact.
*/
static int textLCS(
const char *zLeft, int nA, /* String on the left */
const char *zRight, int nB, /* String on the right */
int *aLCS /* Identify bounds of LCS here */
){
const unsigned char *zA = (const unsigned char*)zLeft; /* left string */
const unsigned char *zB = (const unsigned char*)zRight; /* right string */
int nt; /* Number of target points */
int ti[3]; /* Index for start of each 4-byte target */
unsigned int target[3]; /* 4-byte alignment targets */
unsigned int probe; /* probe to compare against target */
int iAS, iAE, iBS, iBE; /* Range of common segment */
int i, j; /* Loop counters */
int rc = 0; /* Result code. 1 for success */
if( nA<6 || nB<6 ) return 0;
memset(aLCS, 0, sizeof(int)*4);
ti[0] = i = nB/2-2;
target[0] = (zB[i]<<24) | (zB[i+1]<<16) | (zB[i+2]<<8) | zB[i+3];
probe = 0;
if( nB<16 ){
nt = 1;
}else{
ti[1] = i = nB/4-2;
target[1] = (zB[i]<<24) | (zB[i+1]<<16) | (zB[i+2]<<8) | zB[i+3];
ti[2] = i = (nB*3)/4-2;
target[2] = (zB[i]<<24) | (zB[i+1]<<16) | (zB[i+2]<<8) | zB[i+3];
nt = 3;
}
probe = (zA[0]<<16) | (zA[1]<<8) | zA[2];
for(i=3; i<nA; i++){
probe = (probe<<8) | zA[i];
for(j=0; j<nt; j++){
if( probe==target[j] ){
iAS = i-3;
iAE = i+1;
iBS = ti[j];
iBE = ti[j]+4;
while( iAE<nA && iBE<nB && zA[iAE]==zB[iBE] ){ iAE++; iBE++; }
while( iAS>0 && iBS>0 && zA[iAS-1]==zB[iBS-1] ){ iAS--; iBS--; }
if( iAE-iAS > aLCS[1] - aLCS[0] ){
aLCS[0] = iAS;
aLCS[1] = iAE;
aLCS[2] = iBS;
aLCS[3] = iBE;
rc = 1;
}
}
}
}
return rc;
}
/*
Try to shift iStart as far as possible to the left.
*/
static void sbsShiftLeft(SbsLine *p, const char *z){
int i, j;
while( (i=p->iStart)>0 && z[i-1]==z[i] ){
for(j=i+1; j<p->iEnd && z[j-1]==z[j]; j++){}
if( j<p->iEnd ) break;
p->iStart--;
p->iEnd--;
}
}
/*
Simplify iStart and iStart2:
* If iStart is a null-change then move iStart2 into iStart
* Make sure any null-changes are in canonoical form.
* Make sure all changes are at character boundaries for
multi-byte characters.
*/
static void sbsSimplifyLine(SbsLine *p, const char *z){
if( p->iStart2==p->iEnd2 ){
p->iStart2 = p->iEnd2 = 0;
}else if( p->iStart2 ){
while( p->iStart2>0 && (z[p->iStart2]&0xc0)==0x80 ) p->iStart2--;
while( (z[p->iEnd2]&0xc0)==0x80 ) p->iEnd2++;
}
if( p->iStart==p->iEnd ){
p->iStart = p->iStart2;
p->iEnd = p->iEnd2;
p->zStart = p->zStart2;
p->iStart2 = 0;
p->iEnd2 = 0;
}
if( p->iStart==p->iEnd ){
p->iStart = p->iEnd = -1;
}else if( p->iStart>0 ){
while( p->iStart>0 && (z[p->iStart]&0xc0)==0x80 ) p->iStart--;
while( (z[p->iEnd]&0xc0)==0x80 ) p->iEnd++;
}
}
/*
Write out lines that have been edited. Adjust the highlight to cover
only those parts of the line that actually changed.
*/
static int sbsWriteLineChange(
SbsLine *p, /* The SBS output line */
fsl_dline *pLeft, /* Left line of the change */
int lnLeft, /* Line number for the left line */
fsl_dline *pRight, /* Right line of the change */
int lnRight /* Line number of the right line */
){
int rc = 0;
int nLeft; /* Length of left line in bytes */
int nRight; /* Length of right line in bytes */
int nShort; /* Shortest of left and right */
int nPrefix; /* Length of common prefix */
int nSuffix; /* Length of common suffix */
const char *zLeft; /* Text of the left line */
const char *zRight; /* Text of the right line */
int nLeftDiff; /* nLeft - nPrefix - nSuffix */
int nRightDiff; /* nRight - nPrefix - nSuffix */
int aLCS[4] = {0,0,0,0}; /* Bounds of common middle segment */
static const char zClassRm[] = "<span class=\"fsl-diff-rm\">";
static const char zClassAdd[] = "<span class=\"fsl-diff-add\">";
static const char zClassChng[] = "<span class=\"fsl-diff-change\">";
nLeft = pLeft->n;
zLeft = pLeft->z;
nRight = pRight->n;
zRight = pRight->z;
nShort = nLeft<nRight ? nLeft : nRight;
nPrefix = 0;
while( nPrefix<nShort && zLeft[nPrefix]==zRight[nPrefix] ){
nPrefix++;
}
if( nPrefix<nShort ){
while( nPrefix>0 && (zLeft[nPrefix]&0xc0)==0x80 ) nPrefix--;
}
nSuffix = 0;
if( nPrefix<nShort ){
while( nSuffix<nShort && zLeft[nLeft-nSuffix-1]==zRight[nRight-nSuffix-1] ){
nSuffix++;
}
if( nSuffix<nShort ){
while( nSuffix>0 && (zLeft[nLeft-nSuffix]&0xc0)==0x80 ) nSuffix--;
}
if( nSuffix==nLeft || nSuffix==nRight ) nPrefix = 0;
}
if( nPrefix+nSuffix > nShort ) nPrefix = nShort - nSuffix;
/* A single chunk of text inserted on the right */
if( nPrefix+nSuffix==nLeft ){
rc = sbsWriteLineno(p, lnLeft, SBS_LNA);
if(rc) return rc;
p->iStart2 = p->iEnd2 = 0;
p->iStart = p->iEnd = -1;
rc = sbsWriteText(p, pLeft, SBS_TXTA);
if( !rc && nLeft==nRight && zLeft[nLeft]==zRight[nRight] ){
rc = sbsWriteMarker(p, " ", "");
}else{
rc = sbsWriteMarker(p, " | ", "|");
}
if(!rc){
rc = sbsWriteLineno(p, lnRight, SBS_LNB);
if(!rc){
p->iStart = nPrefix;
p->iEnd = nRight - nSuffix;
p->zStart = zClassAdd;
rc = sbsWriteText(p, pRight, SBS_TXTB);
}
}
return rc;
}
/* A single chunk of text deleted from the left */
if( nPrefix+nSuffix==nRight ){
/* Text deleted from the left */
rc = sbsWriteLineno(p, lnLeft, SBS_LNA);
if(!rc){
p->iStart2 = p->iEnd2 = 0;
p->iStart = nPrefix;
p->iEnd = nLeft - nSuffix;
p->zStart = zClassRm;
rc = sbsWriteText(p, pLeft, SBS_TXTA);
if(!rc){
rc = sbsWriteMarker(p, " | ", "|");
if(!rc){
rc = sbsWriteLineno(p, lnRight, SBS_LNB);
if(!rc){
p->iStart = p->iEnd = -1;
sbsWriteText(p, pRight, SBS_TXTB);
}
}
}
}
return rc;
}
/* At this point we know that there is a chunk of text that has
changed between the left and the right. Check to see if there
is a large unchanged section in the middle of that changed block.
*/
nLeftDiff = nLeft - nSuffix - nPrefix;
nRightDiff = nRight - nSuffix - nPrefix;
if( p->escHtml
&& nLeftDiff >= 6
&& nRightDiff >= 6
&& textLCS(&zLeft[nPrefix], nLeftDiff, &zRight[nPrefix], nRightDiff, aLCS)
){
rc = sbsWriteLineno(p, lnLeft, SBS_LNA);
if(rc) return rc;
p->iStart = nPrefix;
p->iEnd = nPrefix + aLCS[0];
if( aLCS[2]==0 ){
sbsShiftLeft(p, pLeft->z);
p->zStart = zClassRm;
}else{
p->zStart = zClassChng;
}
p->iStart2 = nPrefix + aLCS[1];
p->iEnd2 = nLeft - nSuffix;
p->zStart2 = aLCS[3]==nRightDiff ? zClassRm : zClassChng;
sbsSimplifyLine(p, zLeft+nPrefix);
rc = sbsWriteText(p, pLeft, SBS_TXTA);
if(!rc) rc = sbsWriteMarker(p, " | ", "|");
if(!rc) rc = sbsWriteLineno(p, lnRight, SBS_LNB);
if(rc) return rc;
p->iStart = nPrefix;
p->iEnd = nPrefix + aLCS[2];
if( aLCS[0]==0 ){
sbsShiftLeft(p, pRight->z);
p->zStart = zClassAdd;
}else{
p->zStart = zClassChng;
}
p->iStart2 = nPrefix + aLCS[3];
p->iEnd2 = nRight - nSuffix;
p->zStart2 = aLCS[1]==nLeftDiff ? zClassAdd : zClassChng;
sbsSimplifyLine(p, zRight+nPrefix);
rc = sbsWriteText(p, pRight, SBS_TXTB);
return rc;
}
/* If all else fails, show a single big change between left and right */
rc = sbsWriteLineno(p, lnLeft, SBS_LNA);
if(!rc){
p->iStart2 = p->iEnd2 = 0;
p->iStart = nPrefix;
p->iEnd = nLeft - nSuffix;
p->zStart = zClassChng;
rc = sbsWriteText(p, pLeft, SBS_TXTA);
if(!rc){
rc = sbsWriteMarker(p, " | ", "|");
if(!rc){
rc = sbsWriteLineno(p, lnRight, SBS_LNB);
if(!rc){
p->iEnd = nRight - nSuffix;
sbsWriteText(p, pRight, SBS_TXTB);
}
}
}
}
return rc;
}
/*
Return the number between 0 and 100 that is smaller the closer pA and
pB match. Return 0 for a perfect match. Return 100 if pA and pB are
completely different.
The current algorithm is as follows:
(1) Remove leading and trailing whitespace.
(2) Truncate both strings to at most 250 characters
(3) Find the length of the longest common subsequence
(4) Longer common subsequences yield lower scores.
*/
static int match_dline(fsl_dline *pA, fsl_dline *pB){
const char *zA; /* Left string */
const char *zB; /* right string */
int nA; /* Bytes in zA[] */
int nB; /* Bytes in zB[] */
int avg; /* Average length of A and B */
int i, j, k; /* Loop counters */
int best = 0; /* Longest match found so far */
int score; /* Final score. 0..100 */
unsigned char c; /* Character being examined */
unsigned char aFirst[256]; /* aFirst[X] = index in zB[] of first char X */
unsigned char aNext[252]; /* aNext[i] = index in zB[] of next zB[i] char */
zA = pA->z;
zB = pB->z;
nA = pA->n;
nB = pB->n;
while( nA>0 && fsl_isspace(zA[0]) ){ nA--; zA++; }
while( nA>0 && fsl_isspace(zA[nA-1]) ){ nA--; }
while( nB>0 && fsl_isspace(zB[0]) ){ nB--; zB++; }
while( nB>0 && fsl_isspace(zB[nB-1]) ){ nB--; }
if( nA>250 ) nA = 250;
if( nB>250 ) nB = 250;
avg = (nA+nB)/2;
if( avg==0 ) return 0;
if( nA==nB && memcmp(zA, zB, nA)==0 ) return 0;
memset(aFirst, 0, sizeof(aFirst));
zA--; zB--; /* Make both zA[] and zB[] 1-indexed */
for(i=nB; i>0; i--){
c = (unsigned char)zB[i];
aNext[i] = aFirst[c];
aFirst[c] = i;
}
best = 0;
for(i=1; i<=nA-best; i++){
c = (unsigned char)zA[i];
for(j=aFirst[c]; j>0 && j<nB-best; j = aNext[j]){
int limit = minInt(nA-i, nB-j);
for(k=1; k<=limit && zA[k+i]==zB[k+j]; k++){}
if( k>best ) best = k;
}
}
score = (best>avg) ? 0 : (avg - best)*100/avg;
#if 0
fprintf(stderr, "A: [%.*s]\nB: [%.*s]\nbest=%d avg=%d score=%d\n",
nA, zA+1, nB, zB+1, best, avg, score);
#endif
/* Return the result */
return score;
}
/*
There is a change block in which nLeft lines of text on the left are
converted into nRight lines of text on the right. This routine computes
how the lines on the left line up with the lines on the right.
The return value is a buffer of unsigned characters, obtained from
fsl_malloc(). (The caller needs to free the return value using
fsl_free().) Entries in the returned array have values as follows:
1. Delete the next line of pLeft.
2. Insert the next line of pRight.
3. The next line of pLeft changes into the next line of pRight.
4. Delete one line from pLeft and add one line to pRight.
Values larger than three indicate better matches.
The length of the returned array will be just large enough to cause
all elements of pLeft and pRight to be consumed.
Algorithm: Wagner's minimum edit-distance algorithm, modified by
adding a cost to each match based on how well the two rows match
each other. Insertion and deletion costs are 50. Match costs
are between 0 and 100 where 0 is a perfect match 100 is a complete
mismatch.
*/
static unsigned char *sbsAlignment(
fsl_dline *aLeft, int nLeft, /* Text on the left */
fsl_dline *aRight, int nRight /* Text on the right */
){
int i, j, k; /* Loop counters */
int *a; /* One row of the Wagner matrix */
int *pToFree; /* Space that needs to be freed */
unsigned char *aM; /* Wagner result matrix */
int nMatch, iMatch; /* Number of matching lines and match score */
int mnLen; /* MIN(nLeft, nRight) */
int mxLen; /* MAX(nLeft, nRight) */
int aBuf[100]; /* Stack space for a[] if nRight not to big */
aM = (unsigned char *)fsl_malloc( (nLeft+1)*(nRight+1) );
if(!aM) return NULL;
if( nLeft==0 ){
memset(aM, 2, nRight);
return aM;
}
if( nRight==0 ){
memset(aM, 1, nLeft);
return aM;
}
/* This algorithm is O(N**2). So if N is too big, bail out with a
simple (but stupid and ugly) result that doesn't take too long. */
mnLen = nLeft<nRight ? nLeft : nRight;
if( nLeft*nRight>100000 ){
memset(aM, 4, mnLen);
if( nLeft>mnLen ) memset(aM+mnLen, 1, nLeft-mnLen);
if( nRight>mnLen ) memset(aM+mnLen, 2, nRight-mnLen);
return aM;
}
if( nRight < (int)(sizeof(aBuf)/sizeof(aBuf[0]))-1 ){
pToFree = 0;
a = aBuf;
}else{
a = pToFree = fsl_malloc( sizeof(a[0])*(nRight+1) );
if(!a){
fsl_free(aM);
return NULL;
}
}
/* Compute the best alignment */
for(i=0; i<=nRight; i++){
aM[i] = 2;
a[i] = i*50;
}
aM[0] = 0;
for(j=1; j<=nLeft; j++){
int p = a[0];
a[0] = p+50;
aM[j*(nRight+1)] = 1;
for(i=1; i<=nRight; i++){
int m = a[i-1]+50;
int d = 2;
if( m>a[i]+50 ){
m = a[i]+50;
d = 1;
}
if( m>p ){
int score = match_dline(&aLeft[j-1], &aRight[i-1]);
if( (score<=63 || (i<j+1 && i>j-1)) && m>p+score ){
m = p+score;
d = 3 | score*4;
}
}
p = a[i];
a[i] = m;
aM[j*(nRight+1)+i] = d;
}
}
/* Compute the lowest-cost path back through the matrix */
i = nRight;
j = nLeft;
k = (nRight+1)*(nLeft+1)-1;
nMatch = iMatch = 0;
while( i+j>0 ){
unsigned char c = aM[k];
if( c>=3 ){
assert( i>0 && j>0 );
i--;
j--;
nMatch++;
iMatch += (c>>2);
aM[k] = 3;
}else if( c==2 ){
assert( i>0 );
i--;
}else{
assert( j>0 );
j--;
}
k--;
aM[k] = aM[j*(nRight+1)+i];
}
k++;
i = (nRight+1)*(nLeft+1) - k;
memmove(aM, &aM[k], i);
/* If:
(1) the alignment is more than 25% longer than the longest side, and
(2) the average match cost exceeds 15
Then this is probably an alignment that will be difficult for humans
to read. So instead, just show all of the right side inserted followed
by all of the left side deleted.
The coefficients for conditions (1) and (2) above are determined by
experimentation.
*/
mxLen = nLeft>nRight ? nLeft : nRight;
if( i*4>mxLen*5 && (nMatch==0 || iMatch/nMatch>15) ){
memset(aM, 4, mnLen);
if( nLeft>mnLen ) memset(aM+mnLen, 1, nLeft-mnLen);
if( nRight>mnLen ) memset(aM+mnLen, 2, nRight-mnLen);
}
/* Return the result */
fsl_free(pToFree);
return aM;
}
/*
R[] is an array of six integer, two COPY/DELETE/INSERT triples for a
pair of adjacent differences. Return true if the gap between these
two differences is so small that they should be rendered as a single
edit.
*/
static int smallGap(int *R){
return R[3]<=2 || R[3]<=(R[1]+R[2]+R[4]+R[5])/8;
}
/*
Given a diff context in which the aEdit[] array has been filled
in, compute a side-by-side diff into pOut.
*/
static int sbsDiff(
fsl__diff_cx *p, /* The computed diff */
DiffOutState *pOut, /* Write the results here */
ReCompiled *pRe, /* Only show changes that match this regex */
u64 diffFlags /* Flags controlling the diff */
){
fsl_dline *A; /* Left side of the diff */
fsl_dline *B; /* Right side of the diff */
int rc = 0;
int a = 0; /* Index of next line in A[] */
int b = 0; /* Index of next line in B[] */
int *R; /* Array of COPY/DELETE/INSERT triples */
int r; /* Index into R[] */
int nr; /* Number of COPY/DELETE/INSERT triples to process */
int mxr; /* Maximum value for r */
int i, j; /* Loop counters */
int m, ma, mb;/* Number of lines to output */
int skip; /* Number of lines to skip */
static int nChunk = 0; /* Number of chunks of diff output seen so far */
SbsLine s; /* Output line buffer */
int nContext; /* Lines of context above and below each change */
int showDivider = 0; /* True to show the divider */
fsl_buffer unesc = fsl_buffer_empty;
fsl_buffer aCols[5] = { /* Array of column blobs */
fsl_buffer_empty_m, fsl_buffer_empty_m, fsl_buffer_empty_m,
fsl_buffer_empty_m, fsl_buffer_empty_m
};
memset(&s, 0, sizeof(s));
s.pOut = pOut;
s.width = diff_width(diffFlags);
nContext = diff_context_lines(diffFlags);
s.escHtml = (diffFlags & DIFF_HTML)!=0;
if( s.escHtml ){
for(i=SBS_LNA; i<=SBS_TXTB; i++){
s.apCols[i] = &aCols[i];
}
}else{
for(i=SBS_LNA; i<=SBS_TXTB; i++){
s.apCols[i] = &unesc;
}
}
s.pRe = pRe;
s.iStart = -1;
s.iStart2 = 0;
s.iEnd = -1;
A = p->aFrom;
B = p->aTo;
R = p->aEdit;
mxr = p->nEdit;
while( mxr>2 && R[mxr-1]==0 && R[mxr-2]==0 ){ mxr -= 3; }
for(r=0; r<mxr; r += 3*nr){
/* Figure out how many triples to show in a single block */
for(nr=1; R[r+nr*3]>0 && R[r+nr*3]<nContext*2; nr++){}
/* printf("r=%d nr=%d\n", r, nr); */
#if 0
/* MISSING: re/predicate bits. */
/* If there is a regex, skip this block (generate no diff output)
if the regex matches or does not match both insert and delete.
Only display the block if one side matches but the other side does
not.
*/
if( pRe ){
int hideBlock = 1;
int xa = a, xb = b;
for(i=0; hideBlock && i<nr; i++){
int c1, c2;
xa += R[r+i*3];
xb += R[r+i*3];
c1 = re_dline_match(pRe, &A[xa], R[r+i*3+1]);
c2 = re_dline_match(pRe, &B[xb], R[r+i*3+2]);
hideBlock = c1==c2;
xa += R[r+i*3+1];
xb += R[r+i*3+2];
}
if( hideBlock ){
a = xa;
b = xb;
continue;
}
}
#endif
/* For the current block comprising nr triples, figure out
how many lines to skip. */
if( R[r]>nContext ){
skip = R[r] - nContext;
}else{
skip = 0;
}
/* Draw the separator between blocks */
if( showDivider ){
if( s.escHtml ){
char zLn[10];
fsl_snprintf(zLn, sizeof(zLn), "%d", a+skip+1);
rc = sbsWriteSep(&s, strlen(zLn), SBS_LNA);
if(!rc) rc = sbsWriteSep(&s, s.width, SBS_TXTA);
if(!rc) rc = sbsWriteSep(&s, 0, SBS_MKR);
if(!rc){
fsl_snprintf(zLn, sizeof(zLn), "%d", b+skip+1);
rc = sbsWriteSep(&s, strlen(zLn), SBS_LNB);
if(!rc) rc = sbsWriteSep(&s, s.width, SBS_TXTB);
}
}else{
diff_outf(pOut, "%.*c\n", s.width*2+16, '.');
}
if(rc) goto end;
}
showDivider = 1;
nChunk++;
if( s.escHtml ){
rc = fsl_buffer_appendf(s.apCols[SBS_LNA],
"<span class=\"fsl-diff-chunk-%d\"></span>",
nChunk);
}
/* Show the initial common area */
a += skip;
b += skip;
m = R[r] - skip;
for(j=0; !rc && j<m; j++){
rc = sbsWriteLineno(&s, a+j, SBS_LNA);
if(rc) break;
s.iStart = s.iEnd = -1;
rc = sbsWriteText(&s, &A[a+j], SBS_TXTA);
if(!rc) rc = sbsWriteMarker(&s, " ", "");
if(!rc) rc = sbsWriteLineno(&s, b+j, SBS_LNB);
if(!rc) rc = sbsWriteText(&s, &B[b+j], SBS_TXTB);
}
if(rc) goto end;
a += m;
b += m;
/* Show the differences */
for(i=0; i<nr; i++){
unsigned char *alignment;
ma = R[r+i*3+1]; /* Lines on left but not on right */
mb = R[r+i*3+2]; /* Lines on right but not on left */
/* If the gap between the current diff and then next diff within the
same block is not too great, then render them as if they are a
single diff. */
while( i<nr-1 && smallGap(&R[r+i*3]) ){
i++;
m = R[r+i*3];
ma += R[r+i*3+1] + m;
mb += R[r+i*3+2] + m;
}
alignment = sbsAlignment(&A[a], ma, &B[b], mb);
if(!alignment){
rc = FSL_RC_OOM;
goto end;
}
for(j=0; !rc && ma+mb>0; j++){
if( alignment[j]==1 ){
/* Delete one line from the left */
rc = sbsWriteLineno(&s, a, SBS_LNA);
if(rc) goto end_align;
s.iStart = 0;
s.zStart = "<span class=\"fsl-diff-rm\">";
s.iEnd = LENGTH(&A[a]);
rc = sbsWriteText(&s, &A[a], SBS_TXTA);
if(!rc) rc = sbsWriteMarker(&s, " <", "<");
if(!rc) rc = sbsWriteNewlines(&s);
if(rc) goto end_align;
assert( ma>0 );
ma--;
a++;
}else if( alignment[j]==3 ){
/* The left line is changed into the right line */
rc = sbsWriteLineChange(&s, &A[a], a, &B[b], b);
if(rc) goto end_align;
assert( ma>0 && mb>0 );
ma--;
mb--;
a++;
b++;
}else if( alignment[j]==2 ){
/* Insert one line on the right */
if( !s.escHtml ){
rc = sbsWriteSpace(&s, s.width + 7, SBS_TXTA);
}
if(!rc) rc = sbsWriteMarker(&s, " > ", ">");
if(!rc) rc = sbsWriteLineno(&s, b, SBS_LNB);
if(rc) goto end_align;
s.iStart = 0;
s.zStart = "<span class=\"fsl-diff-add\">";
s.iEnd = LENGTH(&B[b]);
rc = sbsWriteText(&s, &B[b], SBS_TXTB);
if(rc) goto end_align;
assert( mb>0 );
mb--;
b++;
}else{
/* Delete from the left and insert on the right */
rc = sbsWriteLineno(&s, a, SBS_LNA);
if(rc) goto end_align;
s.iStart = 0;
s.zStart = "<span class=\"fsl-diff-rm\">";
s.iEnd = LENGTH(&A[a]);
rc = sbsWriteText(&s, &A[a], SBS_TXTA);
if(!rc) rc = sbsWriteMarker(&s, " | ", "|");
if(!rc) rc = sbsWriteLineno(&s, b, SBS_LNB);
if(rc) goto end_align;
s.iStart = 0;
s.zStart = "<span class=\"fsl-diff-add\">";
s.iEnd = LENGTH(&B[b]);
rc = sbsWriteText(&s, &B[b], SBS_TXTB);
if(rc) goto end_align;
ma--;
mb--;
a++;
b++;
}
}
end_align:
fsl_free(alignment);
if(rc) goto end;
if( i<nr-1 ){
m = R[r+i*3+3];
for(j=0; !rc && j<m; j++){
rc = sbsWriteLineno(&s, a+j, SBS_LNA);
s.iStart = s.iEnd = -1;
if(!rc) rc = sbsWriteText(&s, &A[a+j], SBS_TXTA);
if(!rc) rc = sbsWriteMarker(&s, " ", "");
if(!rc) rc = sbsWriteLineno(&s, b+j, SBS_LNB);
if(!rc) rc = sbsWriteText(&s, &B[b+j], SBS_TXTB);
}
if(rc) goto end;
b += m;
a += m;
}
}
/* Show the final common area */
assert( nr==i );
m = R[r+nr*3];
if( m>nContext ) m = nContext;
for(j=0; !rc && j<m; j++){
rc = sbsWriteLineno(&s, a+j, SBS_LNA);
s.iStart = s.iEnd = -1;
if(!rc) rc = sbsWriteText(&s, &A[a+j], SBS_TXTA);
if(!rc) rc = sbsWriteMarker(&s, " ", "");
if(!rc) rc = sbsWriteLineno(&s, b+j, SBS_LNB);
if(!rc) rc = sbsWriteText(&s, &B[b+j], SBS_TXTB);
}
if(rc) goto end;
} /* diff triplet loop */
assert(!rc);
if( s.escHtml && (s.apCols[SBS_LNA]->used>0) ){
rc = diff_out(pOut, "<table class=\"fsl-sbsdiff-cols\"><tr>\n", -1);
for(i=SBS_LNA; !rc && i<=SBS_TXTB; i++){
rc = sbsWriteColumn(pOut, s.apCols[i], i);
}
rc = diff_out(pOut, "</tr></table>\n", -1);
}else if(unesc.used){
rc = pOut->out(pOut->oState, unesc.mem, unesc.used);
}
end:
for( i = 0; i < (int)(sizeof(aCols)/sizeof(aCols[0])); ++i ){
fsl_buffer_clear(&aCols[i]);
}
fsl_buffer_clear(&unesc);
return rc;
}
/** @internal
Performs a text diff on two buffers, either streaming the
output to the 3rd argument or returning the results as an
array of copy/delete/insert triples via the final argument.
ONE of the 3rd or final arguments must be set and the other
must be NULL
If the 3rd argument is not NULL:
- The 4th argument is the opaque state value passed to
the 3rd when emitting output.
- contextLines specifies the number of lines of context for the
diff. A negative contextLines value uses a default.
- sbsWidth, if not 0, specifies a side-by-side diff width. A
negative sbsWidth uses a default. A 0 sbsWidth indicates a
unified-style diff output.
If the final argument is not NULL then the result array of
copy/delete/insert triples is assigned to *outRaw. Ownership is
transfered to the caller, who must eventually pass it to
fsl_free().
Returns 0 on success, any number of other codes on error.
*/
static int fsl_diff_text_impl(
fsl_buffer const *pA, /* FROM file */
fsl_buffer const *pB, /* TO file */
fsl_output_f out, void * outState,
/* ReCompiled *pRe, */ /* Only output changes where this Regexp matches */
short contextLines,
short sbsWidth,
int diffFlags_, /* FSL_DIFF_* flags */
int ** outRaw
){
int rc;
fsl__diff_cx c = fsl__diff_cx_empty;
uint64_t diffFlags = fsl_diff_flags_convert(diffFlags_)
| DIFF_CONTEXT_EX /* to shoehorn newer 0-handling semantics into
older (ported-in) code. */;
if(!pA || !pB || (out && outRaw) || (!out && !outRaw)) return FSL_RC_MISUSE;
else if(contextLines<0) contextLines = 5;
else if(contextLines & ~FSL__LINE_LENGTH_MASK){
contextLines = (int)FSL__LINE_LENGTH_MASK;
}
diffFlags |= (FSL__LINE_LENGTH_MASK & contextLines);
/* Encode SBS width... */
if(sbsWidth<0
|| ((DIFF_SIDEBYSIDE & diffFlags) && !sbsWidth) ) sbsWidth = 80;
if(sbsWidth) diffFlags |= DIFF_SIDEBYSIDE;
diffFlags |= ((int)(sbsWidth & 0xFF))<<16;
if( diffFlags & DIFF_INVERT ){
fsl_buffer const *pTemp = pA;
pA = pB;
pB = pTemp;
}
/* Prepare the input files */
if( (diffFlags & DIFF_IGNORE_ALLWS)==DIFF_IGNORE_ALLWS ){
c.cmpLine = fsl_dline_cmp_ignore_ws;
}else{
c.cmpLine = fsl_dline_cmp;
}
rc = fsl_break_into_dlines(fsl_buffer_cstr(pA), (fsl_int_t)fsl_buffer_size(pA),
(uint32_t*)&c.nFrom, &c.aFrom, diffFlags);
if(rc) goto end;
rc = fsl_break_into_dlines(fsl_buffer_cstr(pB), (fsl_int_t)fsl_buffer_size(pB),
(uint32_t*)&c.nTo, &c.aTo, diffFlags);
if(rc) goto end;
/* Compute the difference */
rc = fsl__diff_all(&c);
//fsl__dump_triples(&c, __FILE__, __LINE__);
if(rc) goto end;
if( (diffFlags & DIFF_NOTTOOBIG)!=0 ){
int i, m, n;
int *a = c.aEdit;
int mx = c.nEdit;
for(i=m=n=0; i<mx; i+=3){ m += a[i]; n += a[i+1]+a[i+2]; }
if( !n || n>10000 ){
rc = FSL_RC_RANGE;
/* diff_errmsg(pOut, DIFF_TOO_MANY_CHANGES, diffFlags); */
goto end;
}
}
//fsl__dump_triples(&c, __FILE__, __LINE__);
if( (diffFlags & DIFF_NOOPT)==0 ){
fsl__diff_optimize(&c);
}
//fsl__dump_triples(&c, __FILE__, __LINE__);
if( out ){
/* Compute a context or side-by-side diff */
/* MISSING: regex support */
DiffOutState dos = DiffOutState_empty;
dos.out = out;
dos.oState = outState;
dos.ansiColor = !!(diffFlags_ & FSL_DIFF_ANSI_COLOR);
if( diffFlags & DIFF_SIDEBYSIDE ){
rc = sbsDiff(&c, &dos, NULL/*pRe*/, diffFlags);
}else{
rc = contextDiff(&c, &dos, NULL/*pRe*/, diffFlags);
}
}else if(outRaw){
/* If a context diff is not requested, then return the
array of COPY/DELETE/INSERT triples. */
*outRaw = c.aEdit;
c.aEdit = NULL;
}
end:
fsl_free(c.aFrom);
fsl_free(c.aTo);
fsl_free(c.aEdit);
return rc;
}
int fsl__diff_text_raw(fsl_buffer const *p1, fsl_buffer const *p2,
int diffFlags, int ** outRaw){
return fsl_diff_text_impl(p1, p2, NULL, NULL, 0, 0, diffFlags, outRaw);
}
int fsl_diff_text(fsl_buffer const *pA, fsl_buffer const *pB,
fsl_output_f out, void * outState,
short contextLines,
short sbsWidth,
int diffFlags ){
return fsl_diff_text_impl(pA, pB, out, outState,
contextLines, sbsWidth, diffFlags, NULL );
}
int fsl_diff_text_to_buffer(fsl_buffer const *pA, fsl_buffer const *pB,
fsl_buffer * pOut,
short contextLines,
short sbsWidth,
int diffFlags ){
return (pA && pB && pOut)
? fsl_diff_text_impl(pA, pB, fsl_output_f_buffer, pOut,
contextLines, sbsWidth, diffFlags, NULL )
: FSL_RC_MISUSE;
}
#undef MARKER
#undef LENGTH
#undef DIFF_CONTEXT_MASK
#undef DIFF_WIDTH_MASK
#undef DIFF_IGNORE_EOLWS
#undef DIFF_IGNORE_ALLWS
#undef DIFF_SIDEBYSIDE
#undef DIFF_VERBOSE
#undef DIFF_BRIEF
#undef DIFF_HTML
#undef DIFF_LINENO
#undef DIFF_NOOPT
#undef DIFF_INVERT
#undef DIFF_CONTEXT_EX
#undef DIFF_NOTTOOBIG
#undef DIFF_STRIP_EOLCR
#undef SBS_LNA
#undef SBS_TXTA
#undef SBS_MKR
#undef SBS_LNB
#undef SBS_TXTB
#undef ANSI_COLOR_BLACK
#undef ANSI_COLOR_RED
#undef ANSI_COLOR_GREEN
#undef ANSI_COLOR_YELLOW
#undef ANSI_COLOR_BLUE
#undef ANSI_COLOR_MAGENTA
#undef ANSI_COLOR_CYAN
#undef ANSI_COLOR_WHITE
#undef ANSI_BG_BLACK
#undef ANSI_BG_RED
#undef ANSI_BG_GREEN
#undef ANSI_BG_YELLOW
#undef ANSI_BG_BLUE
#undef ANSI_BG_MAGENTA
#undef ANSI_BG_CYAN
#undef ANSI_BG_WHITE
#undef ANSI_RESET_COLOR
#undef ANSI_RESET_ALL
#undef ANSI_RESET
#undef ANSI_DIFF_ADD
#undef ANSI_DIFF_MOD
#undef ANSI_DIFF_RM
#endif /*FSL_OMIT_DEPRECATED*/
/* end of file ./src/diff.c */
/* start of file ./src/diff2.c */
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/*
Copyright 2013-2021 The Libfossil Authors, see LICENSES/BSD-2-Clause.txt
SPDX-License-Identifier: BSD-2-Clause-FreeBSD
SPDX-FileCopyrightText: 2021 The Libfossil Authors
SPDX-ArtifactOfProjectName: Libfossil
SPDX-FileType: Code
Heavily indebted to the Fossil SCM project (https://fossil-scm.org).
*/
/**
This file houses the "2nd generation" diff-generation APIs. This
code is a straight port of those algorithms from the Fossil SCM
project, initially implemented by D. Richard Hipp, ported and
the license re-assigned to this project with this consent.
*/
#include <memory.h>
#include <stdlib.h>
#include <string.h> /* for memmove()/strlen() */
#include <stdio.h>
#define MARKER(pfexp) \
do{ printf("MARKER: %s:%d:%s():\t",__FILE__,__LINE__,__func__); \
printf pfexp; \
} while(0)
const fsl_dibu_opt fsl_dibu_opt_empty = fsl_dibu_opt_empty_m;
const fsl_dibu fsl_dibu_empty = fsl_dibu_empty_m;
const fsl_dline fsl_dline_empty = fsl_dline_empty_m;
const fsl_dline_change fsl_dline_change_empty = fsl_dline_change_empty_m;
const fsl__diff_cx fsl__diff_cx_empty = fsl__diff_cx_empty_m;
void fsl__diff_cx_clean(fsl__diff_cx * const cx){
fsl_free(cx->aFrom);
fsl_free(cx->aTo);
fsl_free(cx->aEdit);
cx->aFrom = cx->aTo = NULL;
cx->aEdit = NULL;
*cx = fsl__diff_cx_empty;
}
/**
Counts the number of lines in the first n bytes of the given
string. If n<0 then fsl_strlen() is used to count it.
It includes the last line in the count even if it lacks the \n
terminator. If an empty string is passed in, the number of lines
is zero.
For the purposes of this function, a string is considered empty if
it contains no characters OR contains only NUL characters.
If the input appears to be plain text it returns true and, if nOut
is not NULL, writes the number of lines there. If the input appears
to be binary, returns false and does not modify nOut.
*/
FSL_EXPORT bool fsl_count_lines(const char *z, fsl_int_t n, uint32_t * nOut );
bool fsl_count_lines(const char *z, fsl_int_t n, uint32_t * nOut ){
uint32_t nLine;
const char *zNL, *z2;
if(n<0) n = (fsl_int_t)fsl_strlen(z);
for(nLine=0, z2=z; (zNL = strchr(z2,'\n'))!=0; z2=zNL+1, nLine++){}
if( z2[0]!='\0' ){
nLine++;
do{ z2++; }while( z2[0]!='\0' );
}
if( n!=(fsl_int_t)(z2-z) ) return false;
if( nOut ) *nOut = nLine;
return true;
}
int fsl_break_into_dlines(const char *z, fsl_int_t n,
uint32_t *pnLine,
fsl_dline **pOut, uint64_t diffFlags){
uint32_t nLine, i, k, nn, s, x;
uint64_t h, h2;
fsl_dline *a = 0;
const char *zNL;
if(!z || !n){
*pnLine = 0;
*pOut = NULL;
return 0;
}
if( !fsl_count_lines(z, n, &nLine) ){
return FSL_RC_DIFF_BINARY;
}
assert( nLine>0 || z[0]=='\0' );
if(nLine>0){
a = fsl_malloc( sizeof(a[0])*nLine );
if(!a) return FSL_RC_OOM;
memset(a, 0, sizeof(a[0])*nLine);
}else{
*pnLine = 0;
*pOut = a;
return 0;
}
assert( a );
i = 0;
do{
zNL = strchr(z,'\n');
if( zNL==0 ) zNL = z+n;
nn = (uint32_t)(zNL - z);
if( nn>FSL__LINE_LENGTH_MASK ){
fsl_free(a);
*pOut = 0;
*pnLine = 0;
return FSL_RC_DIFF_BINARY;
}
a[i].z = z;
k = nn;
if( diffFlags & FSL_DIFF2_STRIP_EOLCR ){
if( k>0 && z[k-1]=='\r' ){ k--; }
}
a[i].n = k;
s = 0;
if( diffFlags & FSL_DIFF2_IGNORE_EOLWS ){
while( k>0 && fsl_isspace(z[k-1]) ){ k--; }
}
if( (diffFlags & FSL_DIFF2_IGNORE_ALLWS)
==FSL_DIFF2_IGNORE_ALLWS ){
uint32_t numws = 0;
while( s<k && fsl_isspace(z[s]) ){ ++s; }
for(h=0, x=s; x<k; ++x){
char c = z[x];
if( fsl_isspace(c) ){
++numws;
}else{
h = (h^c)*9000000000000000041LL;
}
}
k -= numws;
}else{
uint32_t k2 = k & ~0x7;
uint64_t m;
for(h=0, x=s; x<k2; x += 8){
memcpy(&m, z+x, 8);
h = (h^m)*9000000000000000041LL;
}
m = 0;
memcpy(&m, z+x, k-k2);
h ^= m;
}
a[i].indent = s;
a[i].h = h = ((h%281474976710597LL)<<FSL__LINE_LENGTH_MASK_SZ) | (k-s);
h2 = h % nLine;
a[i].iNext = a[h2].iHash;
a[h2].iHash = i+1;
z += nn+1; n -= nn+1;
i++;
}while( zNL[0]!='\0' && zNL[1]!='\0' );
assert( i==nLine );
*pnLine = nLine;
*pOut = a;
return 0;
}
int fsl_dline_cmp(const fsl_dline * const pA,
const fsl_dline * const pB){
if( pA->h!=pB->h ) return 1;
return memcmp(pA->z,pB->z, pA->h&FSL__LINE_LENGTH_MASK);
}
int fsl_dline_cmp_ignore_ws(const fsl_dline * const pA,
const fsl_dline * const pB){
unsigned short a = pA->indent, b = pB->indent;
if( pA->h==pB->h ){
while( a<pA->n || b<pB->n ){
if( a<pA->n && b<pB->n && pA->z[a++] != pB->z[b++] ) return 1;
while( a<pA->n && fsl_isspace(pA->z[a])) ++a;
while( b<pB->n && fsl_isspace(pB->z[b])) ++b;
}
return pA->n-a != pB->n-b;
}
return 1;
}
/*
** The two text segments zLeft and zRight are known to be different on
** both ends, but they might have a common segment in the middle. If
** they do not have a common segment, return 0. If they do have a large
** common segment, return non-0 and before doing so set:
**
** aLCS[0] = start of the common segment in zLeft
** aLCS[1] = end of the common segment in zLeft
** aLCS[2] = start of the common segment in zLeft
** aLCS[3] = end of the common segment in zLeft
**
** This computation is for display purposes only and does not have to be
** optimal or exact.
*/
static int textLCS2(
const char *zLeft, uint32_t nA, /* String on the left */
const char *zRight, uint32_t nB, /* String on the right */
uint32_t *aLCS /* Identify bounds of LCS here */
){
const unsigned char *zA = (const unsigned char*)zLeft; /* left string */
const unsigned char *zB = (const unsigned char*)zRight; /* right string */
uint32_t i, j, k; /* Loop counters */
uint32_t lenBest = 0; /* Match length to beat */
for(i=0; i<nA-lenBest; i++){
unsigned char cA = zA[i];
if( (cA&0xc0)==0x80 ) continue;
for(j=0; j<nB-lenBest; j++ ){
if( zB[j]==cA ){
for(k=1; j+k<nB && i+k<nA && zB[j+k]==zA[i+k]; k++){}
while( (zB[j+k]&0xc0)==0x80 ){ k--; }
if( k>lenBest ){
lenBest = k;
aLCS[0] = i;
aLCS[1] = i+k;
aLCS[2] = j;
aLCS[3] = j+k;
}
}
}
}
return lenBest>0;
}
/*
** Find the smallest spans that are different between two text strings
** that are known to be different on both ends. Returns the number
** of entries in p->a which get populated.
*/
static unsigned short textLineChanges(
const char *zLeft, uint32_t nA, /* String on the left */
const char *zRight, uint32_t nB, /* String on the right */
fsl_dline_change * const p /* Write results here */
){
p->n = 1;
p->a[0].iStart1 = 0;
p->a[0].iLen1 = nA;
p->a[0].iStart2 = 0;
p->a[0].iLen2 = nB;
p->a[0].isMin = 0;
while( p->n<fsl_dline_change_max_spans-1 ){
int mxi = -1;
int mxLen = -1;
int x, i;
uint32_t aLCS[4] = {0,0,0,0};
struct fsl_dline_change_span *a, *b;
for(i=0; i<p->n; i++){
if( p->a[i].isMin ) continue;
x = p->a[i].iLen1;
if( p->a[i].iLen2<x ) x = p->a[i].iLen2;
if( x>mxLen ){
mxLen = x;
mxi = i;
}
}
if( mxLen<6 ) break;
x = textLCS2(zLeft + p->a[mxi].iStart1, p->a[mxi].iLen1,
zRight + p->a[mxi].iStart2, p->a[mxi].iLen2, aLCS);
if( x==0 ){
p->a[mxi].isMin = 1;
continue;
}
a = p->a+mxi;
b = a+1;
if( mxi<p->n-1 ){
memmove(b+1, b, sizeof(*b)*(p->n-mxi-1));
}
p->n++;
b->iStart1 = a->iStart1 + aLCS[1];
b->iLen1 = a->iLen1 - aLCS[1];
a->iLen1 = aLCS[0];
b->iStart2 = a->iStart2 + aLCS[3];
b->iLen2 = a->iLen2 - aLCS[3];
a->iLen2 = aLCS[2];
b->isMin = 0;
}
return p->n;
}
/*
** Return true if the string starts with n spaces
*/
static int allSpaces(const char *z, int n){
int i;
for(i=0; i<n && fsl_isspace(z[i]); ++i){}
return i==n;
}
/*
** Try to improve the human-readability of the fsl_dline_change p.
**
** (1) If the first change span shows a change of indentation, try to
** move that indentation change to the left margin.
**
** (2) Try to shift changes so that they begin or end with a space.
*/
static void improveReadability(
const char *zA, /* Left line of the change */
const char *zB, /* Right line of the change */
fsl_dline_change * const p /* The fsl_dline_change to be adjusted */
){
int j, n, len;
if( p->n<1 ) return;
/* (1) Attempt to move indentation changes to the left margin */
if( p->a[0].iLen1==0
&& (len = p->a[0].iLen2)>0
&& (j = p->a[0].iStart2)>0
&& zB[0]==zB[j]
&& allSpaces(zB, j)
){
for(n=1; n<len && n<j && zB[j]==zB[j+n]; n++){}
if( n<len ){
memmove(&p->a[1], &p->a[0], sizeof(p->a[0])*p->n);
p->n++;
p->a[0] = p->a[1];
p->a[1].iStart2 += n;
p->a[1].iLen2 -= n;
p->a[0].iLen2 = n;
}
p->a[0].iStart1 = 0;
p->a[0].iStart2 = 0;
}else
if( p->a[0].iLen2==0
&& (len = p->a[0].iLen1)>0
&& (j = p->a[0].iStart1)>0
&& zA[0]==zA[j]
&& allSpaces(zA, j)
){
for(n=1; n<len && n<j && zA[j]==zA[j+n]; n++){}
if( n<len ){
memmove(&p->a[1], &p->a[0], sizeof(p->a[0])*p->n);
p->n++;
p->a[0] = p->a[1];
p->a[1].iStart1 += n;
p->a[1].iLen1 -= n;
p->a[0].iLen1 = n;
}
p->a[0].iStart1 = 0;
p->a[0].iStart2 = 0;
}
/* (2) Try to shift changes so that they begin or end with a
** space. (TBD) */
}
void fsl_dline_change_spans(const fsl_dline *pLeft, const fsl_dline *pRight,
fsl_dline_change * const p){
/* fossil(1) counterpart ==> diff.c oneLineChange() */
int nLeft; /* Length of left line in bytes */
int nRight; /* Length of right line in bytes */
int nShort; /* Shortest of left and right */
int nPrefix; /* Length of common prefix */
int nSuffix; /* Length of common suffix */
int nCommon; /* Total byte length of suffix and prefix */
const char *zLeft; /* Text of the left line */
const char *zRight; /* Text of the right line */
int nLeftDiff; /* nLeft - nPrefix - nSuffix */
int nRightDiff; /* nRight - nPrefix - nSuffix */
nLeft = pLeft->n;
zLeft = pLeft->z;
nRight = pRight->n;
zRight = pRight->z;
nShort = nLeft<nRight ? nLeft : nRight;
nPrefix = 0;
while( nPrefix<nShort && zLeft[nPrefix]==zRight[nPrefix] ){
nPrefix++;
}
if( nPrefix<nShort ){
while( nPrefix>0 && (zLeft[nPrefix]&0xc0)==0x80 ) nPrefix--;
}
nSuffix = 0;
if( nPrefix<nShort ){
while( nSuffix<nShort
&& zLeft[nLeft-nSuffix-1]==zRight[nRight-nSuffix-1] ){
nSuffix++;
}
if( nSuffix<nShort ){
while( nSuffix>0 && (zLeft[nLeft-nSuffix]&0xc0)==0x80 ) nSuffix--;
}
if( nSuffix==nLeft || nSuffix==nRight ) nPrefix = 0;
}
nCommon = nPrefix + nSuffix;
/* If the prefix and suffix overlap, that means that we are dealing with
** a pure insertion or deletion of text that can have multiple alignments.
** Try to find an alignment to begins and ends on whitespace, or on
** punctuation, rather than in the middle of a name or number.
*/
if( nCommon > nShort ){
int iBest = -1;
int iBestVal = -1;
int i;
int nLong = nLeft<nRight ? nRight : nLeft;
int nGap = nLong - nShort;
for(i=nShort-nSuffix; i<=nPrefix; i++){
int iVal = 0;
char c = zLeft[i];
if( fsl_isspace(c) ){
iVal += 5;
}else if( !fsl_isalnum(c) ){
iVal += 2;
}
c = zLeft[i+nGap-1];
if( fsl_isspace(c) ){
iVal += 5;
}else if( !fsl_isalnum(c) ){
iVal += 2;
}
if( iVal>iBestVal ){
iBestVal = iVal;
iBest = i;
}
}
nPrefix = iBest;
nSuffix = nShort - nPrefix;
nCommon = nPrefix + nSuffix;
}
/* A single chunk of text inserted */
if( nCommon==nLeft ){
p->n = 1;
p->a[0].iStart1 = nPrefix;
p->a[0].iLen1 = 0;
p->a[0].iStart2 = nPrefix;
p->a[0].iLen2 = nRight - nCommon;
improveReadability(zLeft, zRight, p);
return;
}
/* A single chunk of text deleted */
if( nCommon==nRight ){
p->n = 1;
p->a[0].iStart1 = nPrefix;
p->a[0].iLen1 = nLeft - nCommon;
p->a[0].iStart2 = nPrefix;
p->a[0].iLen2 = 0;
improveReadability(zLeft, zRight, p);
return;
}
/* At this point we know that there is a chunk of text that has
** changed between the left and the right. Check to see if there
** is a large unchanged section in the middle of that changed block.
*/
nLeftDiff = nLeft - nCommon;
nRightDiff = nRight - nCommon;
if( nLeftDiff >= 4
&& nRightDiff >= 4
&& textLineChanges(&zLeft[nPrefix], nLeftDiff,
&zRight[nPrefix], nRightDiff, p)>1
){
int i;
for(i=0; i<p->n; i++){
p->a[i].iStart1 += nPrefix;
p->a[i].iStart2 += nPrefix;
}
improveReadability(zLeft, zRight, p);
return;
}
/* If all else fails, show a single big change between left and right */
p->n = 1;
p->a[0].iStart1 = nPrefix;
p->a[0].iLen1 = nLeft - nCommon;
p->a[0].iStart2 = nPrefix;
p->a[0].iLen2 = nRight - nCommon;
improveReadability(zLeft, zRight, p);
}
/*
** The threshold at which diffBlockAlignment transitions from the
** O(N*N) Wagner minimum-edit-distance algorithm to a less process
** O(NlogN) divide-and-conquer approach.
*/
#define DIFF_ALIGN_MX 1225
/**
FSL_DIFF_SMALL_GAP=0 is a temporary(? as of 2022-01-04) patch for a
cosmetic-only (but unsightly) quirk of the diff engine where it
produces a pair of identical DELETE/INSERT lines. Richard's
preliminary solution for it is to remove the "small gap merging,"
but he notes (in fossil /chat) that he's not recommending this as
"the" fix.
PS: we colloquially know this as "the lineno diff" because it was first
reported in a diff which resulted in:
```
- int lineno;
+ int lineno;
```
(No, there are no whitespace changes there.)
To reiterate, though: this is not a "bug," in that it does not
cause incorrect results when applying the resulting unfified-diff
patches. It does, however, cause confusion for human users.
Here are two inputs which, when diffed, expose the lineno behavior:
#1:
```
struct fnc_diff_view_state {
int first_line_onscreen;
int last_line_onscreen;
int diff_flags;
int context;
int sbs;
int matched_line;
int current_line;
int lineno;
size_t ncols;
size_t nlines;
off_t *line_offsets;
bool eof;
bool colour;
bool showmeta;
bool showln;
};
```
#2:
```
struct fnc_diff_view_state {
int first_line_onscreen;
int last_line_onscreen;
int diff_flags;
int context;
int sbs;
int matched_line;
int selected_line;
int lineno;
int gtl;
size_t ncols;
size_t nlines;
off_t *line_offsets;
bool eof;
bool colour;
bool showmeta;
bool showln;
};
```
Result without this patch:
```
Index: X.0
==================================================================
--- X.0
+++ X.1
@@ -3,15 +3,16 @@
int last_line_onscreen;
int diff_flags;
int context;
int sbs;
int matched_line;
+ int selected_line;
- int current_line;
- int lineno;
+ int lineno;
+ int gtl;
size_t ncols;
size_t nlines;
off_t *line_offsets;
bool eof;
bool colour;
bool showmeta;
bool showln;
};
```
And with the patch:
```
Index: X.0
==================================================================
--- X.0
+++ X.1
@@ -3,15 +3,16 @@
int last_line_onscreen;
int diff_flags;
int context;
int sbs;
int matched_line;
- int current_line;
+ int selected_line;
int lineno;
+ int gtl;
size_t ncols;
size_t nlines;
off_t *line_offsets;
bool eof;
bool colour;
bool showmeta;
bool showln;
};
```
*/
#define FSL_DIFF_SMALL_GAP 0
#if FSL_DIFF_SMALL_GAP
/*
** R[] is an array of six integer, two COPY/DELETE/INSERT triples for a
** pair of adjacent differences. Return true if the gap between these
** two differences is so small that they should be rendered as a single
** edit.
*/
static int smallGap2(const int *R, int ma, int mb){
int m = R[3];
ma += R[4] + m;
mb += R[5] + m;
if( ma*mb>DIFF_ALIGN_MX ) return 0;
return m<=2 || m<=(R[1]+R[2]+R[4]+R[5])/8;
}
#endif
static unsigned short diff_opt_context_lines(fsl_dibu_opt const * opt){
const unsigned short dflt = 5;
unsigned short n = opt ? opt->contextLines : dflt;
if( !n && (opt->diffFlags & FSL_DIFF2_CONTEXT_ZERO)==0 ){
n = dflt;
}
return n;
}
/*
** Minimum of two values
*/
static int diffMin(int a, int b){ return a<b ? a : b; }
/****************************************************************************/
/*
** Return the number between 0 and 100 that is smaller the closer pA and
** pB match. Return 0 for a perfect match. Return 100 if pA and pB are
** completely different.
**
** The current algorithm is as follows:
**
** (1) Remove leading and trailing whitespace.
** (2) Truncate both strings to at most 250 characters
** (3) If the two strings have a common prefix, measure that prefix
** (4) Find the length of the longest common subsequence that is
** at least 150% longer than the common prefix.
** (5) Longer common subsequences yield lower scores.
*/
static int match_dline2(const fsl_dline *pA, const fsl_dline *pB){
const char *zA; /* Left string */
const char *zB; /* right string */
int nA; /* Bytes in zA[] */
int nB; /* Bytes in zB[] */
int nMin;
int nPrefix;
int avg; /* Average length of A and B */
int i, j, k; /* Loop counters */
int best = 0; /* Longest match found so far */
int score; /* Final score. 0..100 */
unsigned char c; /* Character being examined */
unsigned char aFirst[256]; /* aFirst[X] = index in zB[] of first char X */
unsigned char aNext[252]; /* aNext[i] = index in zB[] of next zB[i] char */
zA = pA->z;
zB = pB->z;
nA = pA->n;
nB = pB->n;
while( nA>0 && (unsigned char)zA[0]<=' ' ){ nA--; zA++; }
while( nA>0 && (unsigned char)zA[nA-1]<=' ' ){ nA--; }
while( nB>0 && (unsigned char)zB[0]<=' ' ){ nB--; zB++; }
while( nB>0 && (unsigned char)zB[nB-1]<=' ' ){ nB--; }
if( nA>250 ) nA = 250;
if( nB>250 ) nB = 250;
avg = (nA+nB)/2;
if( avg==0 ) return 0;
nMin = nA;
if( nB<nMin ) nMin = nB;
if( nMin==0 ) return 68;
for(nPrefix=0; nPrefix<nMin && zA[nPrefix]==zB[nPrefix]; nPrefix++){}
best = 0;
if( nPrefix>5 && nPrefix>nMin/2 ){
best = nPrefix*3/2;
if( best>=avg - 2 ) best = avg - 2;
}
if( nA==nB && memcmp(zA, zB, nA)==0 ) return 0;
memset(aFirst, 0xff, sizeof(aFirst));
zA--; zB--; /* Make both zA[] and zB[] 1-indexed */
for(i=nB; i>0; i--){
c = (unsigned char)zB[i];
aNext[i] = aFirst[c];
aFirst[c] = i;
}
for(i=1; i<=nA-best; i++){
c = (unsigned char)zA[i];
for(j=aFirst[c]; j<nB-best && memcmp(&zA[i],&zB[j],best)==0; j = aNext[j]){
int limit = diffMin(nA-i, nB-j);
for(k=best; k<=limit && zA[k+i]==zB[k+j]; k++){}
if( k>best ) best = k;
}
}
score = (best>=avg) ? 0 : (avg - best)*100/avg;
#if 0
fprintf(stderr, "A: [%.*s]\nB: [%.*s]\nbest=%d avg=%d score=%d\n",
nA, zA+1, nB, zB+1, best, avg, score);
#endif
/* Return the result */
return score;
}
/*
** There is a change block in which nLeft lines of text on the left are
** converted into nRight lines of text on the right. This routine computes
** how the lines on the left line up with the lines on the right.
**
** The return value is a buffer of unsigned characters, obtained from
** fossil_malloc(). (The caller needs to free the return value using
** fossil_free().) Entries in the returned array have values as follows:
**
** 1. Delete the next line of pLeft.
** 2. Insert the next line of pRight.
** 3. The next line of pLeft changes into the next line of pRight.
** 4. Delete one line from pLeft and add one line to pRight.
**
** The length of the returned array will be at most nLeft+nRight bytes.
** If the first bytes is 4, that means we could not compute reasonable
** alignment between the two blocks.
**
** Algorithm: Wagner's minimum edit-distance algorithm, modified by
** adding a cost to each match based on how well the two rows match
** each other. Insertion and deletion costs are 50. Match costs
** are between 0 and 100 where 0 is a perfect match 100 is a complete
** mismatch.
*/
static int diffBlockAlignment(
const fsl_dline *aLeft, int nLeft, /* Text on the left */
const fsl_dline *aRight, int nRight, /* Text on the right */
fsl_dibu_opt * const pOpt, /* Configuration options */
unsigned char **pResult, /* Raw result */
unsigned *pNResult /* OUTPUT: length of result */
){
int i, j, k; /* Loop counters */
int *a = 0; /* One row of the Wagner matrix */
int *pToFree = 0; /* Space that needs to be freed */
unsigned char *aM = 0; /* Wagner result matrix */
int nMatch, iMatch; /* Number of matching lines and match score */
int aBuf[100]; /* Stack space for a[] if nRight not to big */
int rc = 0;
if( nLeft==0 ){
aM = fsl_malloc( nRight + 2 );
if(!aM) return FSL_RC_OOM;
memset(aM, 2, nRight);
*pNResult = nRight;
*pResult = aM;
return 0;
}
if( nRight==0 ){
aM = fsl_malloc( nLeft + 2 );
if(!aM) return FSL_RC_OOM;
memset(aM, 1, nLeft);
*pNResult = nLeft;
*pResult = aM;
return 0;
}
/* For large alignments, use a divide and conquer algorithm that is
** O(NlogN). The result is not as precise, but this whole thing is an
** approximation anyhow, and the faster response time is an acceptable
** trade-off for reduced precision.
*/
if( nLeft*nRight>DIFF_ALIGN_MX
&& (pOpt->diffFlags & FSL_DIFF2_SLOW_SBS)==0 ){
const fsl_dline *aSmall; /* The smaller of aLeft and aRight */
const fsl_dline *aBig; /* The larger of aLeft and aRight */
int nSmall, nBig; /* Size of aSmall and aBig. nSmall<=nBig */
int iDivSmall, iDivBig; /* Divider point for aSmall and aBig */
int iDivLeft, iDivRight; /* Divider point for aLeft and aRight */
unsigned char *a1 = 0, *a2 = 0; /* Results of the alignments on two halves */
unsigned int n1, n2; /* Number of entries in a1 and a2 */
int score, bestScore; /* Score and best score seen so far */
if( nLeft>nRight ){
aSmall = aRight;
nSmall = nRight;
aBig = aLeft;
nBig = nLeft;
}else{
aSmall = aLeft;
nSmall = nLeft;
aBig = aRight;
nBig = nRight;
}
iDivBig = nBig/2;
iDivSmall = nSmall/2;
bestScore = 10000;
for(i=0; i<nSmall; i++){
score = match_dline2(aBig+iDivBig, aSmall+i) + abs(i-nSmall/2)*2;
if( score<bestScore ){
bestScore = score;
iDivSmall = i;
}
}
if( aSmall==aRight ){
iDivRight = iDivSmall;
iDivLeft = iDivBig;
}else{
iDivRight = iDivBig;
iDivLeft = iDivSmall;
}
rc = diffBlockAlignment(aLeft,iDivLeft,aRight, iDivRight,
pOpt, &a1, &n1);
if(!rc){
rc = diffBlockAlignment(aLeft+iDivLeft, nLeft-iDivLeft,
aRight+iDivRight, nRight-iDivRight,
pOpt, &a2, &n2);
}
if(rc) goto bail;
void * a1Re = fsl_realloc(a1, n1+n2 );
if(!a1Re) goto bail;
a1 = (unsigned char *)a1Re;
memcpy(a1+n1,a2,n2);
fsl_free(a2);
a2 = 0;
*pNResult = n1+n2;
*pResult = a1;
return 0;
bail:
assert(0!=rc);
fsl_free( a1 );
fsl_free( a2 );
goto end;
}
/* If we reach this point, we will be doing an O(N*N) Wagner minimum
** edit distance to compute the alignment.
*/
if( nRight < (int)(sizeof(aBuf)/sizeof(aBuf[0]))-1 ){
pToFree = 0;
a = aBuf;
}else{
a = pToFree = fsl_malloc( sizeof(a[0])*(nRight+1) );
if(!a){
rc = FSL_RC_OOM;
goto end;
}
}
aM = fsl_malloc( (nLeft+1)*(nRight+1) );
if(!aM){
rc = FSL_RC_OOM;
goto end;
}
/* Compute the best alignment */
for(i=0; i<=nRight; i++){
aM[i] = 2;
a[i] = i*50;
}
aM[0] = 0;
for(j=1; j<=nLeft; j++){
int p = a[0];
a[0] = p+50;
aM[j*(nRight+1)] = 1;
for(i=1; i<=nRight; i++){
int m = a[i-1]+50;
int d = 2;
if( m>a[i]+50 ){
m = a[i]+50;
d = 1;
}
if( m>p ){
int const score =
match_dline2(&aLeft[j-1], &aRight[i-1]);
if( (score<=90 || (i<j+1 && i>j-1)) && m>p+score ){
m = p+score;
d = 3 | score*4;
}
}
p = a[i];
a[i] = m;
aM[j*(nRight+1)+i] = d;
}
}
/* Compute the lowest-cost path back through the matrix */
i = nRight;
j = nLeft;
k = (nRight+1)*(nLeft+1)-1;
nMatch = iMatch = 0;
while( i+j>0 ){
unsigned char c = aM[k];
if( c>=3 ){
assert( i>0 && j>0 );
i--;
j--;
nMatch++;
iMatch += (c>>2);
aM[k] = 3;
}else if( c==2 ){
assert( i>0 );
i--;
}else{
assert( j>0 );
j--;
}
k--;
aM[k] = aM[j*(nRight+1)+i];
}
k++;
i = (nRight+1)*(nLeft+1) - k;
memmove(aM, &aM[k], i);
*pNResult = i;
*pResult = aM;
end:
fsl_free(pToFree);
return rc;
}
/*
** Format a diff using a fsl_dibu object
*/
static int fdb__format(
fsl__diff_cx * const cx,
fsl_dibu * const pBuilder
){
const fsl_dline *A; /* Left side of the diff */
const fsl_dline *B; /* Right side of the diff */
fsl_dibu_opt * const pOpt = pBuilder->opt;
const int *R; /* Array of COPY/DELETE/INSERT triples */
unsigned int a; /* Index of next line in A[] */
unsigned int b; /* Index of next line in B[] */
unsigned int r; /* Index into R[] */
unsigned int nr; /* Number of COPY/DELETE/INSERT triples to process */
unsigned int mxr; /* Maximum value for r */
unsigned int na, nb; /* Number of lines shown from A and B */
unsigned int i, j; /* Loop counters */
unsigned int m, ma, mb;/* Number of lines to output */
signed int skip; /* Number of lines to skip */
unsigned int contextLines; /* Lines of context above and below each change */
unsigned short passNumber = 0;
int rc = 0;
#define RC if(rc) goto end
#define METRIC(M) if(1==passNumber) ++pBuilder->metrics.M
pass_again:
contextLines = diff_opt_context_lines(pOpt);
skip = 0;
a = b = 0;
A = cx->aFrom;
B = cx->aTo;
R = cx->aEdit;
mxr = cx->nEdit;
//MARKER(("contextLines=%u, nEdit = %d, mxr=%u\n", contextLines, cx->nEdit, mxr));
while( mxr>2 && R[mxr-1]==0 && R[mxr-2]==0 ){ mxr -= 3; }
pBuilder->lnLHS = pBuilder->lnRHS = 0;
++passNumber;
if(pBuilder->start){
pBuilder->passNumber = passNumber;
rc = pBuilder->start(pBuilder);
RC;
}
for(r=0; r<mxr; r += 3*nr){
/* Figure out how many triples to show in a single block */
for(nr=1; R[r+nr*3]>0 && R[r+nr*3]<(int)contextLines*2; nr++){}
#if 0
/* MISSING: this "should" be replaced by a stateful predicate
function, probably in the fsl_dibu_opt class. */
/* If there is a regex, skip this block (generate no diff output)
** if the regex matches or does not match both insert and delete.
** Only display the block if one side matches but the other side does
** not.
*/
if( pOpt->pRe ){
int hideBlock = 1;
int xa = a, xb = b;
for(i=0; hideBlock && i<nr; i++){
int c1, c2;
xa += R[r+i*3];
xb += R[r+i*3];
c1 = re_dline_match(pOpt->pRe, &A[xa], R[r+i*3+1]);
c2 = re_dline_match(pOpt->pRe, &B[xb], R[r+i*3+2]);
hideBlock = c1==c2;
xa += R[r+i*3+1];
xb += R[r+i*3+2];
}
if( hideBlock ){
a = xa;
b = xb;
continue;
}
}
#endif
/* Figure out how many lines of A and B are to be displayed
** for this change block.
*/
if( R[r]>(int)contextLines ){
na = nb = contextLines;
skip = R[r] - contextLines;
}else{
na = nb = R[r];
skip = 0;
}
for(i=0; i<nr; i++){
na += R[r+i*3+1];
nb += R[r+i*3+2];
}
if( R[r+nr*3]>(int)contextLines ){
na += contextLines;
nb += contextLines;
}else{
na += R[r+nr*3];
nb += R[r+nr*3];
}
for(i=1; i<nr; i++){
na += R[r+i*3];
nb += R[r+i*3];
}
//MARKER(("Chunk header... a=%u, b=%u, na=%u, nb=%u, skip=%d\n", a, b, na, nb, skip));
if(pBuilder->chunkHeader
/* The following bit is a kludge to keep from injecting a chunk
header between chunks which are directly adjacent.
The problem, however, is that we cannot skip _reliably_
without also knowing how the next chunk aligns. If we skip
it here, the _previous_ chunk header may well be telling
the user a lie with regards to line numbers.
Fossil itself does not have this issue because it generates
these chunk headers directly in this routine, instead of in
the diff builder, depending on a specific flag being set in
builder->opt. Also (related), in that implementation, fossil
will collapse chunks which are separated by less than the
context distance into contiguous chunks (see below). Because
we farm out the chunkHeader lines to the builder, we cannot
reliably do that here.
*/
#if 0
&& !skip
#endif
){
rc = pBuilder->chunkHeader(pBuilder,
(uint32_t)(na ? a+skip+1 : a+skip),
(uint32_t)na,
(uint32_t)(nb ? b+skip+1 : b+skip),
(uint32_t)nb);
RC;
}
/* Show the initial common area */
a += skip;
b += skip;
m = R[r] - skip;
if( r ) skip -= contextLines;
//MARKER(("Show the initial common... a=%u, b=%u, m=%u, r=%u, skip=%d\n", a, b, m, r, skip));
if( skip>0 ){
if( NULL==pBuilder->chunkHeader && skip<(int)contextLines ){
/* 2021-09-27: BUG: this is incompatible with unified diff
format. The generated header lines say we're skipping X
lines but we then end up including lines which that header
says to skip. As a workaround, we'll only run this when
pBuilder->chunkHeader is NULL, noting that fossil's diff
builder interface does not have that method (and thus
doesn't have this issue, instead generating chunk headers
directly in this algorithm).
Without this block, our "utxt" diff builder can mimic
fossil's non-diff builder unified diff format, except that
we add Index lines (feature or bug?). With this block,
the header values output above are wrong.
*/
/* If the amount to skip is less that the context band, then
** go ahead and show the skip band as it is not worth eliding */
//MARKER(("skip %d < contextLines %d\n", skip, contextLines));
/* from fossil(1) from formatDiff() */
for(j=0; 0==rc && j<(unsigned)skip; j++){
//MARKER(("(A) COMMON\n"));
rc = pBuilder->common(pBuilder, &A[a+j-skip]);
}
}else{
rc = pBuilder->skip(pBuilder, skip);
}
RC;
}
for(j=0; 0==rc && j<m; j++){
//MARKER(("(B) COMMON\n"));
rc = pBuilder->common(pBuilder, &A[a+j]);
}
RC;
a += m;
b += m;
//MARKER(("Show the differences... a=%d, b=%d, m=%d\n", a, b, m));
/* Show the differences */
for(i=0; i<nr; i++){
unsigned int nAlign;
unsigned char *alignment = 0;
ma = R[r+i*3+1]; /* Lines on left but not on right */
mb = R[r+i*3+2]; /* Lines on right but not on left */
#if FSL_DIFF_SMALL_GAP
/* Try merging the current block with subsequent blocks, if the
** subsequent blocks are nearby and their result isn't too big.
*/
while( i<nr-1 && smallGap2(&R[r+i*3],ma,mb) ){
i++;
m = R[r+i*3];
ma += R[r+i*3+1] + m;
mb += R[r+i*3+2] + m;
}
#endif
/* Try to find an alignment for the lines within this one block */
rc = diffBlockAlignment(&A[a], ma, &B[b], mb, pOpt,
&alignment, &nAlign);
RC;
for(j=0; ma+mb>0; j++){
assert( j<nAlign );
switch( alignment[j] ){
case 1: {
/* Delete one line from the left */
METRIC(deletions);
rc = pBuilder->deletion(pBuilder, &A[a]);
if(rc) goto bail;
ma--;
a++;
break;
}
case 2: {
/* Insert one line on the right */
METRIC(insertions);
rc = pBuilder->insertion(pBuilder, &B[b]);
if(rc) goto bail;
assert( mb>0 );
mb--;
b++;
break;
}
case 3: {
/* The left line is changed into the right line */
if( 0==cx->cmpLine(&A[a], &B[b]) ){
rc = pBuilder->common(pBuilder, &A[a]);
}else{
METRIC(edits);
rc = pBuilder->edit(pBuilder, &A[a], &B[b]);
}
if(rc) goto bail;
assert( ma>0 && mb>0 );
ma--;
mb--;
a++;
b++;
break;
}
case 4: {
/* Delete from left then separately insert on the right */
METRIC(replacements);
rc = pBuilder->replacement(pBuilder, &A[a], &B[b]);
if(rc) goto bail;
ma--;
a++;
mb--;
b++;
break;
}
}
}
assert( nAlign==j );
fsl_free(alignment);
if( i<nr-1 ){
m = R[r+i*3+3];
for(j=0; 0==rc && j<m; j++){
//MARKER(("D common\n"));
rc = pBuilder->common(pBuilder, &A[a+j]);
}
RC;
b += m;
a += m;
}
continue;
bail:
assert(rc);
fsl_free(alignment);
goto end;
}
/* Show the final common area */
assert( nr==i );
m = R[r+nr*3];
if( m>contextLines ) m = contextLines;
for(j=0; 0==rc && j<m && j<contextLines; j++){
//MARKER(("E common\n"));
rc = pBuilder->common(pBuilder, &A[a+j]);
}
RC;
}
if( R[r]>(int)contextLines ){
rc = pBuilder->skip(pBuilder, R[r] - contextLines);
}
end:
#undef RC
#undef METRIC
if(0==rc){
if(pBuilder->finish) pBuilder->finish(pBuilder);
if(pBuilder->twoPass && 1==passNumber){
goto pass_again;
}
}
return rc;
}
/* MISSING(?) fossil(1) converts the diff inputs into utf8 with no
BOM. Whether we really want to do that here or rely on the caller
to is up for debate. If we do it here, we have to make the inputs
non-const, which seems "wrong" for a library API. */
#define blob_to_utf8_no_bom(A,B) (void)0
/**
Performs a diff of version 1 (pA) and version 2 (pB). ONE of
pBuilder or outRaw must be non-NULL. If pBuilder is not NULL, all
output for the diff is emitted via pBuilder. If outRaw is not NULL
then on success *outRaw is set to the array of diff triples,
transfering ownership to the caller, who must eventually fsl_free()
it. On error, *outRaw is not modified but pBuilder may have emitted
partial output. That is not knowable for the general
case. Ownership of pBuilder is not changed. If pBuilder is not NULL
then pBuilder->opt must be non-NULL.
*/
static int fsl_diff2_text_impl(fsl_buffer const *pA,
fsl_buffer const *pB,
fsl_dibu * const pBuilder,
fsl_dibu_opt const * const opt_,
int ** outRaw){
int rc = 0;
fsl__diff_cx c = fsl__diff_cx_empty;
bool ignoreWs = false;
int ansiOptCount = 0;
fsl_dibu_opt opt = *opt_
/*we need a copy for the sake of the FSL_DIFF2_INVERT flag*/;
if(!pA || !pB || (pBuilder && outRaw)) return FSL_RC_MISUSE;
blob_to_utf8_no_bom(pA, 0);
blob_to_utf8_no_bom(pB, 0);
if( opt.diffFlags & FSL_DIFF2_INVERT ){
char const * z;
fsl_buffer const *pTemp = pA;
pA = pB;
pB = pTemp;
z = opt.hashRHS; opt.hashRHS = opt.hashLHS; opt.hashLHS = z;
z = opt.nameRHS; opt.nameRHS = opt.nameLHS; opt.nameLHS = z;
}
#define AOPT(OPT) \
if(opt.ansiColor.OPT) ansiOptCount += (*opt.ansiColor.OPT) ? 1 : 0; \
else opt.ansiColor.OPT = ""
AOPT(insertion);
AOPT(edit);
AOPT(deletion);
#undef AOPT
if(0==ansiOptCount){
opt.ansiColor.reset = "";
}else if(!opt.ansiColor.reset || !*opt.ansiColor.reset){
opt.ansiColor.reset = "\x1b[0m";
}
ignoreWs = (opt.diffFlags & FSL_DIFF2_IGNORE_ALLWS)!=0;
if(FSL_DIFF2_IGNORE_ALLWS==(opt.diffFlags & FSL_DIFF2_IGNORE_ALLWS)){
c.cmpLine = fsl_dline_cmp_ignore_ws;
}else{
c.cmpLine = fsl_dline_cmp;
}
rc = fsl_break_into_dlines(fsl_buffer_cstr(pA), (fsl_int_t)pA->used,
(uint32_t*)&c.nFrom, &c.aFrom, opt.diffFlags);
if(rc) goto end;
rc = fsl_break_into_dlines(fsl_buffer_cstr(pB), (fsl_int_t)pB->used,
(uint32_t*)&c.nTo, &c.aTo, opt.diffFlags);
if(rc) goto end;
/* Compute the difference */
rc = fsl__diff_all(&c);
if(rc) goto end;
if( ignoreWs && c.nEdit==6 && c.aEdit[1]==0 && c.aEdit[2]==0 ){
rc = FSL_RC_DIFF_WS_ONLY;
goto end;
}
if( (opt.diffFlags & FSL_DIFF2_NOTTOOBIG)!=0 ){
int i, m, n;
int const * const a = c.aEdit;
int const mx = c.nEdit;
for(i=m=n=0; i<mx; i+=3){ m += a[i]; n += a[i+1]+a[i+2]; }
if( !n || n>10000 ){
rc = FSL_RC_RANGE;
/* diff_errmsg(pOut, DIFF_TOO_MANY_CHANGES, diffFlags); */
goto end;
}
}
//fsl__dump_triples(&c, __FILE__, __LINE__);
if( (opt.diffFlags & FSL_DIFF2_NOOPT)==0 ){
fsl__diff_optimize(&c);
}
//fsl__dump_triples(&c, __FILE__, __LINE__);
/**
Reference:
https://fossil-scm.org/home/file?ci=cae7036bb7f07c1b&name=src/diff.c&ln=2749-2804
Noting that:
- That function's return value is this one's *outRaw
- DIFF_NUMSTAT flag is not implemented. For that matter,
flags which result in output going anywhere except for
pBuilder->out are not implemented here, e.g. DIFF_RAW.
That last point makes this impl tiny compared to the original!
*/
if(pBuilder){
fsl_dibu_opt * const oldOpt = pBuilder->opt;
pBuilder->opt = &opt;
rc = fdb__format(&c, pBuilder);
pBuilder->opt = oldOpt;
}
end:
if(0==rc && outRaw){
*outRaw = c.aEdit;
c.aEdit = 0;
}
fsl__diff_cx_clean(&c);
return rc;
}
int fsl_diff_v2(fsl_buffer const * pv1,
fsl_buffer const * pv2,
fsl_dibu * const pBuilder){
return fsl_diff2_text_impl(pv1, pv2, pBuilder, pBuilder->opt, NULL);
}
int fsl_diff_v2_raw(fsl_buffer const * pv1,
fsl_buffer const * pv2,
fsl_dibu_opt const * const opt,
int **outRaw ){
return fsl_diff2_text_impl(pv1, pv2, NULL,
opt ? opt : &fsl_dibu_opt_empty,
outRaw);
}
fsl_dibu * fsl_dibu_alloc(fsl_size_t extra){
fsl_dibu * rc =
(fsl_dibu*)fsl_malloc(sizeof(fsl_dibu) + extra);
if(rc){
*rc = fsl_dibu_empty;
|
︙ | | |
23930
23931
23932
23933
23934
23935
23936
23937
23938
23939
23940
23941
23942
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23944
|
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27204
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27206
27207
27208
27209
27210
27211
27212
27213
27214
27215
27216
27217
|
-
+
|
uint32_t lineCount[2];
/**
The actual number of lines needed for rendering the file.
*/
uint32_t displayLines;
};
typedef struct DiffCounter DiffCounter;
static const DiffCounter DiffCounter_empty = {{1,25,3,1,25},{0,0},0};
static const DiffCounter DiffCounter_empty = {{1,10,3,1,10},{0,0},0};
#define DICOSTATE(VNAME) DiffCounter * const VNAME = (DiffCounter *)b->pimpl
static int maxColWidth(fsl_dibu const * const b,
DiffCounter const * const sst,
int mwIndex){
static const short minColWidth =
10/*b->opt.columnWidth values smaller than this are treated as
|
︙ | | |
24774
24775
24776
24777
24778
24779
24780
24781
24782
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24786
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24788
24789
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|
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28048
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28053
28054
28055
28056
28057
28058
28059
28060
28061
28062
|
-
-
-
+
+
|
#endif
return rc;
}
static int fdb__tcl_finally(fsl_dibu * const b){
int rc = 0;
if(FSL_DIBU_TCL_TK==(b->implFlags & FSL_DIBU_TCL_TK)){
extern char const * fsl_difftk_cstr;
if(!b->fileCount) rc = fdb__out(b,"set difftxt {\n",-1);
if(0==rc) rc = fdb__out(b, "}\nset fossilcmd {}\n", -1);
if(0==rc) rc = fdb__out(b, fsl_difftk_cstr, -1);
rc = fdb__out(b, "}\nset fossilcmd {}\n", -1);
if(0==rc) fdb__out(b, fsl_difftk_cstr, -1);
}
return rc;
}
#undef BR_OPEN
#undef BR_CLOSE
|
︙ | | |
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if(NULL!=factory){
*pOut = factory();
rc = *pOut ? 0 : FSL_RC_OOM;
}
return rc;
}
#undef MARKER
#undef DICOSTATE
#undef DIFF_ALIGN_MX
#undef DIFF_CANNOT_COMPUTE_BINARY
#undef DIFF_CANNOT_COMPUTE_SYMLINK
#undef DIFF_TOO_MANY_CHANGES
#undef DIFF_WHITESPACE_ONLY
#undef fsl_dline_empty_m
#undef MARKER
#undef DTCL_BUFFER
/* end of file ./src/dibu.c */
/* start of file ./src/diff.c */
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/*
Copyright 2013-2022 The Libfossil Authors, see LICENSES/BSD-2-Clause.txt
SPDX-License-Identifier: BSD-2-Clause-FreeBSD
SPDX-FileCopyrightText: 2013-2022 The Libfossil Authors
SPDX-ArtifactOfProjectName: Libfossil
SPDX-FileType: Code
Heavily indebted to the Fossil SCM project (https://fossil-scm.org).
*/
/************************************************************************
This file houses Fossil's diff-generation routines (as opposed to
the delta-generation). This code is a straight port of those
algorithms from the Fossil SCM project, initially implemented by
D. Richard Hipp, ported and the license re-assigned to this project
with this consent.
*/
#include <assert.h>
#include <memory.h>
#include <stdlib.h>
#include <string.h> /* for memmove()/strlen() */
#include <stdio.h>
#define MARKER(pfexp) \
do{ printf("MARKER: %s:%d:%s():\t",__FILE__,__LINE__,__func__); \
printf pfexp; \
} while(0)
const fsl_dline fsl_dline_empty = fsl_dline_empty_m;
const fsl_dline_change fsl_dline_change_empty = fsl_dline_change_empty_m;
const fsl__diff_cx fsl__diff_cx_empty = fsl__diff_cx_empty_m;
void fsl__diff_cx_clean(fsl__diff_cx * const cx){
fsl_free(cx->aFrom);
fsl_free(cx->aTo);
fsl_free(cx->aEdit);
cx->aFrom = cx->aTo = NULL;
cx->aEdit = NULL;
*cx = fsl__diff_cx_empty;
}
/* Fast isspace for use by diff */
static const char diffIsSpace[] = {
0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
};
#define diff_isspace(X) (diffIsSpace[(unsigned char)(X)])
/**
Length of a dline.
*/
#define LENGTH(X) ((X)->n)
/**
Minimum of two values
*/
static int minInt(int a, int b){ return a<b ? a : b; }
/** @internal
Compute the optimal longest common subsequence (LCS) using an
exhaustive search. This version of the LCS is only used for
shorter input strings since runtime is O(N*N) where N is the
input string length.
*/
static void fsl__diff_optimal_lcs(
fsl__diff_cx * const p, /* Two files being compared */
int iS1, int iE1, /* Range of lines in p->aFrom[] */
int iS2, int iE2, /* Range of lines in p->aTo[] */
int *piSX, int *piEX, /* Write p->aFrom[] common segment here */
int *piSY, int *piEY /* Write p->aTo[] common segment here */
){
int mxLength = 0; /* Length of longest common subsequence */
int i, j; /* Loop counters */
int k; /* Length of a candidate subsequence */
int iSXb = iS1; /* Best match so far */
int iSYb = iS2; /* Best match so far */
for(i=iS1; i<iE1-mxLength; i++){
for(j=iS2; j<iE2-mxLength; j++){
if( p->cmpLine(&p->aFrom[i], &p->aTo[j]) ) continue;
if( mxLength && p->cmpLine(&p->aFrom[i+mxLength], &p->aTo[j+mxLength]) ){
continue;
}
k = 1;
while( i+k<iE1 && j+k<iE2 && p->cmpLine(&p->aFrom[i+k],&p->aTo[j+k])==0 ){
k++;
}
if( k>mxLength ){
iSXb = i;
iSYb = j;
mxLength = k;
}
}
}
*piSX = iSXb;
*piEX = iSXb + mxLength;
*piSY = iSYb;
*piEY = iSYb + mxLength;
}
/**
Compare two blocks of text on lines iS1 through iE1-1 of the aFrom[]
file and lines iS2 through iE2-1 of the aTo[] file. Locate a sequence
of lines in these two blocks that are exactly the same. Return
the bounds of the matching sequence.
If there are two or more possible answers of the same length, the
returned sequence should be the one closest to the center of the
input range.
Ideally, the common sequence should be the longest possible common
sequence. However, an exact computation of LCS is O(N*N) which is
way too slow for larger files. So this routine uses an O(N)
heuristic approximation based on hashing that usually works about
as well. But if the O(N) algorithm doesn't get a good solution
and N is not too large, we fall back to an exact solution by
calling fsl__diff_optimal_lcs().
*/
static void fsl__diff_lcs(
fsl__diff_cx * const p, /* Two files being compared */
int iS1, int iE1, /* Range of lines in p->aFrom[] */
int iS2, int iE2, /* Range of lines in p->aTo[] */
int *piSX, int *piEX, /* Write p->aFrom[] common segment here */
int *piSY, int *piEY /* Write p->aTo[] common segment here */
){
int i, j, k; /* Loop counters */
int n; /* Loop limit */
fsl_dline *pA, *pB; /* Pointers to lines */
int iSX, iSY, iEX, iEY; /* Current match */
int skew = 0; /* How lopsided is the match */
int dist = 0; /* Distance of match from center */
int mid; /* Center of the chng */
int iSXb, iSYb, iEXb, iEYb; /* Best match so far */
int iSXp, iSYp, iEXp, iEYp; /* Previous match */
sqlite3_int64 bestScore; /* Best score so far */
sqlite3_int64 score; /* Score for current candidate LCS */
int span; /* combined width of the input sequences */
int cutoff = 4; /* Max hash chain entries to follow */
int nextCutoff = -1; /* Value of cutoff for next iteration */
span = (iE1 - iS1) + (iE2 - iS2);
bestScore = -10000;
score = 0;
iSXb = iSXp = iS1;
iEXb = iEXp = iS1;
iSYb = iSYp = iS2;
iEYb = iEYp = iS2;
mid = (iE1 + iS1)/2;
do{
nextCutoff = 0;
for(i=iS1; i<iE1; i++){
int limit = 0;
j = p->aTo[p->aFrom[i].h % p->nTo].iHash;
while( j>0
&& (j-1<iS2 || j>=iE2 || p->cmpLine(&p->aFrom[i], &p->aTo[j-1]))
){
if( limit++ > cutoff ){
j = 0;
nextCutoff = cutoff*4;
break;
}
j = p->aTo[j-1].iNext;
}
if( j==0 ) continue;
assert( i>=iSXb && i>=iSXp );
if( i<iEXb && j>=iSYb && j<iEYb ) continue;
if( i<iEXp && j>=iSYp && j<iEYp ) continue;
iSX = i;
iSY = j-1;
pA = &p->aFrom[iSX-1];
pB = &p->aTo[iSY-1];
n = minInt(iSX-iS1, iSY-iS2);
for(k=0; k<n && p->cmpLine(pA,pB)==0; k++, pA--, pB--){}
iSX -= k;
iSY -= k;
iEX = i+1;
iEY = j;
pA = &p->aFrom[iEX];
pB = &p->aTo[iEY];
n = minInt(iE1-iEX, iE2-iEY);
for(k=0; k<n && p->cmpLine(pA,pB)==0; k++, pA++, pB++){}
iEX += k;
iEY += k;
skew = (iSX-iS1) - (iSY-iS2);
if( skew<0 ) skew = -skew;
dist = (iSX+iEX)/2 - mid;
if( dist<0 ) dist = -dist;
score = (iEX - iSX)*(sqlite3_int64)span - (skew + dist);
if( score>bestScore ){
bestScore = score;
iSXb = iSX;
iSYb = iSY;
iEXb = iEX;
iEYb = iEY;
}else if( iEX>iEXp ){
iSXp = iSX;
iSYp = iSY;
iEXp = iEX;
iEYp = iEY;
}
}
}while( iSXb==iEXb && nextCutoff && (cutoff=nextCutoff)<=64 );
if( iSXb==iEXb && (sqlite3_int64)(iE1-iS1)*(iE2-iS2)<2500 ){
fsl__diff_optimal_lcs(p, iS1, iE1, iS2, iE2, piSX, piEX, piSY, piEY);
}else{
*piSX = iSXb;
*piSY = iSYb;
*piEX = iEXb;
*piEY = iEYb;
}
}
void fsl__dump_triples(fsl__diff_cx const * const p,
char const * zFile, int ln ){
// Compare this with (fossil xdiff --raw) on the same inputs
fprintf(stderr,"%s:%d: Compare this with (fossil xdiff --raw) on the same inputs:\n",
zFile, ln);
for(int i = 0; p->aEdit[i] || p->aEdit[i+1] || p->aEdit[i+2]; i+=3){
printf(" copy %6d delete %6d insert %6d\n",
p->aEdit[i], p->aEdit[i+1], p->aEdit[i+2]);
}
}
/** @internal
Expand the size of p->aEdit array to hold at least nEdit elements.
*/
static int fsl__diff_expand_edit(fsl__diff_cx * const p, int nEdit){
void * re = fsl_realloc(p->aEdit, nEdit*sizeof(int));
if(!re) return FSL_RC_OOM;
else{
p->aEdit = (int*)re;
p->nEditAlloc = nEdit;
return 0;
}
}
/**
Append a new COPY/DELETE/INSERT triple.
Returns 0 on success, FSL_RC_OOM on OOM.
*/
static int appendTriple(fsl__diff_cx *p, int nCopy, int nDel, int nIns){
/* printf("APPEND %d/%d/%d\n", nCopy, nDel, nIns); */
if( p->nEdit>=3 ){
if( p->aEdit[p->nEdit-1]==0 ){
if( p->aEdit[p->nEdit-2]==0 ){
p->aEdit[p->nEdit-3] += nCopy;
p->aEdit[p->nEdit-2] += nDel;
p->aEdit[p->nEdit-1] += nIns;
return 0;
}
if( nCopy==0 ){
p->aEdit[p->nEdit-2] += nDel;
p->aEdit[p->nEdit-1] += nIns;
return 0;
}
}
if( nCopy==0 && nDel==0 ){
p->aEdit[p->nEdit-1] += nIns;
return 0;
}
}
if( p->nEdit+3>p->nEditAlloc ){
int const rc = fsl__diff_expand_edit(p, p->nEdit*2 + 15);
if(rc) return rc;
else if( p->aEdit==0 ) return 0;
}
p->aEdit[p->nEdit++] = nCopy;
p->aEdit[p->nEdit++] = nDel;
p->aEdit[p->nEdit++] = nIns;
return 0;
}
/*
** A common subsequene between p->aFrom and p->aTo has been found.
** This routine tries to judge if the subsequence really is a valid
** match or rather is just an artifact of an indentation change.
**
** Return non-zero if the subsequence is valid. Return zero if the
** subsequence seems likely to be an editing artifact and should be
** ignored.
**
** This routine is a heuristic optimization intended to give more
** intuitive diff results following an indentation change it code that
** is formatted similarly to C/C++, Javascript, Go, TCL, and similar
** languages that use {...} for nesting. A correct diff is computed
** even if this routine always returns true (non-zero). But sometimes
** a more intuitive diff can result if this routine returns false.
**
** The subsequences consists of the rows iSX through iEX-1 (inclusive)
** in p->aFrom[]. The total sequences is iS1 through iE1-1 (inclusive)
** of p->aFrom[].
**
** Example where this heuristic is useful, see the diff at
** https://www.sqlite.org/src/fdiff?v1=0e79dd15cbdb4f48&v2=33955a6fd874dd97
**
** See also discussion at https://fossil-scm.org/forum/forumpost/9ba3284295
**
** ALGORITHM (subject to change and refinement):
**
** 1. If the subsequence is larger than 1/7th of the original span,
** then consider it valid. --> return 1
**
** 2. If the subsequence contains any charaters other than '}', '{",
** or whitespace, then consider it valid. --> return 1
**
** 3. Otherwise, it is potentially an artifact of an indentation
** change. --> return 0
*/
static bool likelyNotIndentChngArtifact(
fsl__diff_cx const * const p, /* The complete diff context */
int iS1, /* Start of the main segment */
int iSX, /* Start of the subsequence */
int iEX, /* First row past the end of the subsequence */
int iE1 /* First row past the end of the main segment */
){
int i, j;
if( (iEX-iSX)*7 >= (iE1-iS1) ) return true;
for(i=iSX; i<iEX; i++){
const char *z = p->aFrom[i].z;
for(j=p->aFrom[i].n-1; j>=0; j--){
char c = z[j];
if( c!='}' && c!='{' && !diff_isspace(c) ) return true;
}
}
return false;
}
/**
Do a single step in the difference. Compute a sequence of
copy/delete/insert steps that will convert lines iS1 through iE1-1
of the input into lines iS2 through iE2-1 of the output and write
that sequence into the difference context.
The algorithm is to find a block of common text near the middle of
the two segments being diffed. Then recursively compute
differences on the blocks before and after that common segment.
Special cases apply if either input segment is empty or if the two
segments have no text in common.
*/
static int diff_step(fsl__diff_cx *p, int iS1, int iE1, int iS2, int iE2){
int iSX, iEX, iSY, iEY;
int rc = 0;
if( iE1<=iS1 ){
/* The first segment is empty */
if( iE2>iS2 ){
rc = appendTriple(p, 0, 0, iE2-iS2);
}
return rc;
}
if( iE2<=iS2 ){
/* The second segment is empty */
return appendTriple(p, 0, iE1-iS1, 0);
}
/* Find the longest matching segment between the two sequences */
fsl__diff_lcs(p, iS1, iE1, iS2, iE2, &iSX, &iEX, &iSY, &iEY);
if( iEX>iSX+5
|| (iEX>iSX && likelyNotIndentChngArtifact(p,iS1,iSX,iEX,iE1) )){
/* A common segment has been found.
Recursively diff either side of the matching segment */
rc = diff_step(p, iS1, iSX, iS2, iSY);
if(!rc){
if(iEX>iSX){
rc = appendTriple(p, iEX - iSX, 0, 0);
}
if(!rc) rc = diff_step(p, iEX, iE1, iEY, iE2);
}
}else{
/* The two segments have nothing in common. Delete the first then
insert the second. */
rc = appendTriple(p, 0, iE1-iS1, iE2-iS2);
}
return rc;
}
int fsl__diff_all(fsl__diff_cx * const p){
int mnE, iS, iE1, iE2;
int rc = 0;
/* Carve off the common header and footer */
iE1 = p->nFrom;
iE2 = p->nTo;
while( iE1>0 && iE2>0 && p->cmpLine(&p->aFrom[iE1-1], &p->aTo[iE2-1])==0 ){
iE1--;
iE2--;
}
mnE = iE1<iE2 ? iE1 : iE2;
for(iS=0; iS<mnE && p->cmpLine(&p->aFrom[iS],&p->aTo[iS])==0; iS++){}
/* do the difference */
if( iS>0 ){
rc = appendTriple(p, iS, 0, 0);
if(rc) return rc;
}
rc = diff_step(p, iS, iE1, iS, iE2);
//fsl__dump_triples(p, __FILE__, __LINE__);
if(rc) return rc;
else if( iE1<p->nFrom ){
rc = appendTriple(p, p->nFrom - iE1, 0, 0);
if(rc) return rc;
}
/* Terminate the COPY/DELETE/INSERT triples with three zeros */
rc = fsl__diff_expand_edit(p, p->nEdit+3);
if(0==rc){
if(p->aEdit ){
p->aEdit[p->nEdit++] = 0;
p->aEdit[p->nEdit++] = 0;
p->aEdit[p->nEdit++] = 0;
//fsl__dump_triples(p, __FILE__, __LINE__);
}
}
return rc;
}
void fsl__diff_optimize(fsl__diff_cx * const p){
int r; /* Index of current triple */
int lnFrom; /* Line number in p->aFrom */
int lnTo; /* Line number in p->aTo */
int cpy, del, ins;
//fsl__dump_triples(p, __FILE__, __LINE__);
lnFrom = lnTo = 0;
for(r=0; r<p->nEdit; r += 3){
cpy = p->aEdit[r];
del = p->aEdit[r+1];
ins = p->aEdit[r+2];
lnFrom += cpy;
lnTo += cpy;
/* Shift insertions toward the beginning of the file */
while( cpy>0 && del==0 && ins>0 ){
fsl_dline *pTop = &p->aFrom[lnFrom-1]; /* Line before start of insert */
fsl_dline *pBtm = &p->aTo[lnTo+ins-1]; /* Last line inserted */
if( p->cmpLine(pTop, pBtm) ) break;
if( LENGTH(pTop+1)+LENGTH(pBtm)<=LENGTH(pTop)+LENGTH(pBtm-1) ) break;
lnFrom--;
lnTo--;
p->aEdit[r]--;
p->aEdit[r+3]++;
cpy--;
}
/* Shift insertions toward the end of the file */
while( r+3<p->nEdit && p->aEdit[r+3]>0 && del==0 && ins>0 ){
fsl_dline *pTop = &p->aTo[lnTo]; /* First line inserted */
fsl_dline *pBtm = &p->aTo[lnTo+ins]; /* First line past end of insert */
if( p->cmpLine(pTop, pBtm) ) break;
if( LENGTH(pTop)+LENGTH(pBtm-1)<=LENGTH(pTop+1)+LENGTH(pBtm) ) break;
lnFrom++;
lnTo++;
p->aEdit[r]++;
p->aEdit[r+3]--;
cpy++;
}
/* Shift deletions toward the beginning of the file */
while( cpy>0 && del>0 && ins==0 ){
fsl_dline *pTop = &p->aFrom[lnFrom-1]; /* Line before start of delete */
fsl_dline *pBtm = &p->aFrom[lnFrom+del-1]; /* Last line deleted */
if( p->cmpLine(pTop, pBtm) ) break;
if( LENGTH(pTop+1)+LENGTH(pBtm)<=LENGTH(pTop)+LENGTH(pBtm-1) ) break;
lnFrom--;
lnTo--;
p->aEdit[r]--;
p->aEdit[r+3]++;
cpy--;
}
/* Shift deletions toward the end of the file */
while( r+3<p->nEdit && p->aEdit[r+3]>0 && del>0 && ins==0 ){
fsl_dline *pTop = &p->aFrom[lnFrom]; /* First line deleted */
fsl_dline *pBtm = &p->aFrom[lnFrom+del]; /* First line past end of delete */
if( p->cmpLine(pTop, pBtm) ) break;
if( LENGTH(pTop)+LENGTH(pBtm-1)<=LENGTH(pTop)+LENGTH(pBtm) ) break;
lnFrom++;
lnTo++;
p->aEdit[r]++;
p->aEdit[r+3]--;
cpy++;
}
lnFrom += del;
lnTo += ins;
}
//fsl__dump_triples(p, __FILE__, __LINE__);
}
/**
Counts the number of lines in the first n bytes of the given
string. If n<0 then fsl_strlen() is used to count it.
It includes the last line in the count even if it lacks the \n
terminator. If an empty string is passed in, the number of lines
is zero.
For the purposes of this function, a string is considered empty if
it contains no characters OR contains only NUL characters.
If the input appears to be plain text it returns true and, if nOut
is not NULL, writes the number of lines there. If the input appears
to be binary, returns false and does not modify nOut.
*/
static bool fsl__count_lines(const char *z, fsl_int_t n, uint32_t * nOut ){
uint32_t nLine;
const char *zNL, *z2;
if(n<0) n = (fsl_int_t)fsl_strlen(z);
for(nLine=0, z2=z; (zNL = strchr(z2,'\n'))!=0; z2=zNL+1, nLine++){}
if( z2[0]!='\0' ){
nLine++;
do{ z2++; }while( z2[0]!='\0' );
}
if( n!=(fsl_int_t)(z2-z) ) return false;
if( nOut ) *nOut = nLine;
return true;
}
int fsl_break_into_dlines(const char *z, fsl_int_t n,
uint32_t *pnLine,
fsl_dline **pOut, uint64_t diffFlags){
uint32_t nLine, i, k, nn, s, x;
uint64_t h, h2;
fsl_dline *a = 0;
const char *zNL;
if(!z || !n){
*pnLine = 0;
*pOut = NULL;
return 0;
}
if( !fsl__count_lines(z, n, &nLine) ){
return FSL_RC_DIFF_BINARY;
}
assert( nLine>0 || z[0]=='\0' );
if(nLine>0){
a = fsl_malloc( sizeof(a[0])*nLine );
if(!a) return FSL_RC_OOM;
memset(a, 0, sizeof(a[0])*nLine);
}else{
*pnLine = 0;
*pOut = a;
return 0;
}
assert( a );
i = 0;
do{
zNL = strchr(z,'\n');
if( zNL==0 ) zNL = z+n;
nn = (uint32_t)(zNL - z);
if( nn>FSL__LINE_LENGTH_MASK ){
fsl_free(a);
*pOut = 0;
*pnLine = 0;
return FSL_RC_DIFF_BINARY;
}
a[i].z = z;
k = nn;
if( diffFlags & FSL_DIFF2_STRIP_EOLCR ){
if( k>0 && z[k-1]=='\r' ){ k--; }
}
a[i].n = k;
if( diffFlags & FSL_DIFF2_IGNORE_EOLWS ){
while( k>0 && diff_isspace(z[k-1]) ){ k--; }
}
if( (diffFlags & FSL_DIFF2_IGNORE_ALLWS)
==FSL_DIFF2_IGNORE_ALLWS ){
uint32_t numws = 0;
for(s=0; s<k && z[s]<=' '; s++){}
a[i].indent = s;
a[i].nw = k - s;
for(h=0, x=s; x<k; ++x){
char c = z[x];
if( diff_isspace(c) ){
++numws;
}else{
h = (h^c)*9000000000000000041LL;
}
}
k -= numws;
}else{
uint32_t k2 = k & ~0x7;
uint64_t m;
for(h=x=s=0; x<k2; x += 8){
memcpy(&m, z+x, 8);
h = (h^m)*9000000000000000041LL;
}
m = 0;
memcpy(&m, z+x, k-k2);
h ^= m;
}
a[i].h = h = ((h%281474976710597LL)<<FSL__LINE_LENGTH_MASK_SZ) | (k-s);
h2 = h % nLine;
a[i].iNext = a[h2].iHash;
a[h2].iHash = i+1;
z += nn+1; n -= nn+1;
i++;
}while( zNL[0]!='\0' && zNL[1]!='\0' );
assert( i==nLine );
*pnLine = nLine;
*pOut = a;
return 0;
}
int fsl_dline_cmp(const fsl_dline * const pA,
const fsl_dline * const pB){
if( pA->h!=pB->h ) return 1;
return memcmp(pA->z,pB->z, pA->h&FSL__LINE_LENGTH_MASK);
}
int fsl_dline_cmp_ignore_ws(const fsl_dline * const pA,
const fsl_dline * const pB){
if( pA->h==pB->h ){
unsigned short a, b;
if( memcmp(pA->z, pB->z, pA->h&FSL__LINE_LENGTH_MASK)==0 ) return 0;
a = pA->indent;
b = pB->indent;
while( a<pA->n || b<pB->n ){
if( a<pA->n && b<pB->n && pA->z[a++] != pB->z[b++] ) return 1;
while( a<pA->n && diff_isspace(pA->z[a])) ++a;
while( b<pB->n && diff_isspace(pB->z[b])) ++b;
}
return pA->n-a != pB->n-b;
}
return 1;
}
/*
** The two text segments zLeft and zRight are known to be different on
** both ends, but they might have a common segment in the middle. If
** they do not have a common segment, return 0. If they do have a large
** common segment, return non-0 and before doing so set:
**
** aLCS[0] = start of the common segment in zLeft
** aLCS[1] = end of the common segment in zLeft
** aLCS[2] = start of the common segment in zLeft
** aLCS[3] = end of the common segment in zLeft
**
** This computation is for display purposes only and does not have to be
** optimal or exact.
*/
static int textLCS2(
const char *zLeft, uint32_t nA, /* String on the left */
const char *zRight, uint32_t nB, /* String on the right */
uint32_t *aLCS /* Identify bounds of LCS here */
){
const unsigned char *zA = (const unsigned char*)zLeft; /* left string */
const unsigned char *zB = (const unsigned char*)zRight; /* right string */
uint32_t i, j, k; /* Loop counters */
uint32_t lenBest = 0; /* Match length to beat */
for(i=0; i<nA-lenBest; i++){
unsigned char cA = zA[i];
if( (cA&0xc0)==0x80 ) continue;
for(j=0; j<nB-lenBest; j++ ){
if( zB[j]==cA ){
for(k=1; j+k<nB && i+k<nA && zB[j+k]==zA[i+k]; k++){}
while( (zB[j+k]&0xc0)==0x80 ){ k--; }
if( k>lenBest ){
lenBest = k;
aLCS[0] = i;
aLCS[1] = i+k;
aLCS[2] = j;
aLCS[3] = j+k;
}
}
}
}
return lenBest>0;
}
/*
** Find the smallest spans that are different between two text strings
** that are known to be different on both ends. Returns the number
** of entries in p->a which get populated.
*/
static unsigned short textLineChanges(
const char *zLeft, uint32_t nA, /* String on the left */
const char *zRight, uint32_t nB, /* String on the right */
fsl_dline_change * const p /* Write results here */
){
p->n = 1;
p->a[0].iStart1 = 0;
p->a[0].iLen1 = nA;
p->a[0].iStart2 = 0;
p->a[0].iLen2 = nB;
p->a[0].isMin = 0;
while( p->n<fsl_dline_change_max_spans-1 ){
int mxi = -1;
int mxLen = -1;
int x, i;
uint32_t aLCS[4] = {0,0,0,0};
struct fsl_dline_change_span *a, *b;
for(i=0; i<p->n; i++){
if( p->a[i].isMin ) continue;
x = p->a[i].iLen1;
if( p->a[i].iLen2<x ) x = p->a[i].iLen2;
if( x>mxLen ){
mxLen = x;
mxi = i;
}
}
if( mxLen<6 ) break;
x = textLCS2(zLeft + p->a[mxi].iStart1, p->a[mxi].iLen1,
zRight + p->a[mxi].iStart2, p->a[mxi].iLen2, aLCS);
if( x==0 ){
p->a[mxi].isMin = 1;
continue;
}
a = p->a+mxi;
b = a+1;
if( mxi<p->n-1 ){
memmove(b+1, b, sizeof(*b)*(p->n-mxi-1));
}
p->n++;
b->iStart1 = a->iStart1 + aLCS[1];
b->iLen1 = a->iLen1 - aLCS[1];
a->iLen1 = aLCS[0];
b->iStart2 = a->iStart2 + aLCS[3];
b->iLen2 = a->iLen2 - aLCS[3];
a->iLen2 = aLCS[2];
b->isMin = 0;
}
return p->n;
}
/*
** Return true if the string starts with n spaces
*/
static int allSpaces(const char *z, int n){
int i;
for(i=0; i<n && diff_isspace(z[i]); ++i){}
return i==n;
}
/*
** Try to improve the human-readability of the fsl_dline_change p.
**
** (1) If the first change span shows a change of indentation, try to
** move that indentation change to the left margin.
**
** (2) Try to shift changes so that they begin or end with a space.
*/
static void improveReadability(
const char *zA, /* Left line of the change */
const char *zB, /* Right line of the change */
fsl_dline_change * const p /* The fsl_dline_change to be adjusted */
){
int j, n, len;
if( p->n<1 ) return;
/* (1) Attempt to move indentation changes to the left margin */
if( p->a[0].iLen1==0
&& (len = p->a[0].iLen2)>0
&& (j = p->a[0].iStart2)>0
&& zB[0]==zB[j]
&& allSpaces(zB, j)
){
for(n=1; n<len && n<j && zB[j]==zB[j+n]; n++){}
if( n<len ){
memmove(&p->a[1], &p->a[0], sizeof(p->a[0])*p->n);
p->n++;
p->a[0] = p->a[1];
p->a[1].iStart2 += n;
p->a[1].iLen2 -= n;
p->a[0].iLen2 = n;
}
p->a[0].iStart1 = 0;
p->a[0].iStart2 = 0;
}else
if( p->a[0].iLen2==0
&& (len = p->a[0].iLen1)>0
&& (j = p->a[0].iStart1)>0
&& zA[0]==zA[j]
&& allSpaces(zA, j)
){
for(n=1; n<len && n<j && zA[j]==zA[j+n]; n++){}
if( n<len ){
memmove(&p->a[1], &p->a[0], sizeof(p->a[0])*p->n);
p->n++;
p->a[0] = p->a[1];
p->a[1].iStart1 += n;
p->a[1].iLen1 -= n;
p->a[0].iLen1 = n;
}
p->a[0].iStart1 = 0;
p->a[0].iStart2 = 0;
}
/* (2) Try to shift changes so that they begin or end with a
** space. (TBD) */
}
void fsl_dline_change_spans(const fsl_dline *pLeft, const fsl_dline *pRight,
fsl_dline_change * const p){
/* fossil(1) counterpart ==> diff.c oneLineChange() */
int nLeft; /* Length of left line in bytes */
int nRight; /* Length of right line in bytes */
int nShort; /* Shortest of left and right */
int nPrefix; /* Length of common prefix */
int nSuffix; /* Length of common suffix */
int nCommon; /* Total byte length of suffix and prefix */
const char *zLeft; /* Text of the left line */
const char *zRight; /* Text of the right line */
int nLeftDiff; /* nLeft - nPrefix - nSuffix */
int nRightDiff; /* nRight - nPrefix - nSuffix */
nLeft = pLeft->n;
zLeft = pLeft->z;
nRight = pRight->n;
zRight = pRight->z;
nShort = nLeft<nRight ? nLeft : nRight;
nPrefix = 0;
while( nPrefix<nShort && zLeft[nPrefix]==zRight[nPrefix] ){
nPrefix++;
}
if( nPrefix<nShort ){
while( nPrefix>0 && (zLeft[nPrefix]&0xc0)==0x80 ) nPrefix--;
}
nSuffix = 0;
if( nPrefix<nShort ){
while( nSuffix<nShort
&& zLeft[nLeft-nSuffix-1]==zRight[nRight-nSuffix-1] ){
nSuffix++;
}
if( nSuffix<nShort ){
while( nSuffix>0 && (zLeft[nLeft-nSuffix]&0xc0)==0x80 ) nSuffix--;
}
if( nSuffix==nLeft || nSuffix==nRight ) nPrefix = 0;
}
nCommon = nPrefix + nSuffix;
/* If the prefix and suffix overlap, that means that we are dealing with
** a pure insertion or deletion of text that can have multiple alignments.
** Try to find an alignment to begins and ends on whitespace, or on
** punctuation, rather than in the middle of a name or number.
*/
if( nCommon > nShort ){
int iBest = -1;
int iBestVal = -1;
int i;
int nLong = nLeft<nRight ? nRight : nLeft;
int nGap = nLong - nShort;
for(i=nShort-nSuffix; i<=nPrefix; i++){
int iVal = 0;
char c = zLeft[i];
if( diff_isspace(c) ){
iVal += 5;
}else if( !fsl_isalnum(c) ){
iVal += 2;
}
c = zLeft[i+nGap-1];
if( diff_isspace(c) ){
iVal += 5;
}else if( !fsl_isalnum(c) ){
iVal += 2;
}
if( iVal>iBestVal ){
iBestVal = iVal;
iBest = i;
}
}
nPrefix = iBest;
nSuffix = nShort - nPrefix;
nCommon = nPrefix + nSuffix;
}
/* A single chunk of text inserted */
if( nCommon==nLeft ){
p->n = 1;
p->a[0].iStart1 = nPrefix;
p->a[0].iLen1 = 0;
p->a[0].iStart2 = nPrefix;
p->a[0].iLen2 = nRight - nCommon;
improveReadability(zLeft, zRight, p);
return;
}
/* A single chunk of text deleted */
if( nCommon==nRight ){
p->n = 1;
p->a[0].iStart1 = nPrefix;
p->a[0].iLen1 = nLeft - nCommon;
p->a[0].iStart2 = nPrefix;
p->a[0].iLen2 = 0;
improveReadability(zLeft, zRight, p);
return;
}
/* At this point we know that there is a chunk of text that has
** changed between the left and the right. Check to see if there
** is a large unchanged section in the middle of that changed block.
*/
nLeftDiff = nLeft - nCommon;
nRightDiff = nRight - nCommon;
if( nLeftDiff >= 4
&& nRightDiff >= 4
&& textLineChanges(&zLeft[nPrefix], nLeftDiff,
&zRight[nPrefix], nRightDiff, p)>1
){
int i;
for(i=0; i<p->n; i++){
p->a[i].iStart1 += nPrefix;
p->a[i].iStart2 += nPrefix;
}
improveReadability(zLeft, zRight, p);
return;
}
/* If all else fails, show a single big change between left and right */
p->n = 1;
p->a[0].iStart1 = nPrefix;
p->a[0].iLen1 = nLeft - nCommon;
p->a[0].iStart2 = nPrefix;
p->a[0].iLen2 = nRight - nCommon;
improveReadability(zLeft, zRight, p);
}
/*
** The threshold at which diffBlockAlignment transitions from the
** O(N*N) Wagner minimum-edit-distance algorithm to a less process
** O(NlogN) divide-and-conquer approach.
*/
#define DIFF_ALIGN_MX 1225
/**
FSL_DIFF_SMALL_GAP=0 is a temporary(? as of 2022-01-04) patch for a
cosmetic-only (but unsightly) quirk of the diff engine where it
produces a pair of identical DELETE/INSERT lines. Richard's
preliminary solution for it is to remove the "small gap merging,"
but he notes (in fossil /chat) that he's not recommending this as
"the" fix.
PS: we colloquially know this as "the lineno diff" because it was first
reported in a diff which resulted in:
```
- int lineno;
+ int lineno;
```
(No, there are no whitespace changes there.)
To reiterate, though: this is not a "bug," in that it does not
cause incorrect results when applying the resulting unfified-diff
patches. It does, however, cause confusion for human users.
Here are two inputs which, when diffed, expose the lineno behavior:
#1:
```
struct fnc_diff_view_state {
int first_line_onscreen;
int last_line_onscreen;
int diff_flags;
int context;
int sbs;
int matched_line;
int current_line;
int lineno;
size_t ncols;
size_t nlines;
off_t *line_offsets;
bool eof;
bool colour;
bool showmeta;
bool showln;
};
```
#2:
```
struct fnc_diff_view_state {
int first_line_onscreen;
int last_line_onscreen;
int diff_flags;
int context;
int sbs;
int matched_line;
int selected_line;
int lineno;
int gtl;
size_t ncols;
size_t nlines;
off_t *line_offsets;
bool eof;
bool colour;
bool showmeta;
bool showln;
};
```
Result without this patch:
```
Index: X.0
==================================================================
--- X.0
+++ X.1
@@ -3,15 +3,16 @@
int last_line_onscreen;
int diff_flags;
int context;
int sbs;
int matched_line;
+ int selected_line;
- int current_line;
- int lineno;
+ int lineno;
+ int gtl;
size_t ncols;
size_t nlines;
off_t *line_offsets;
bool eof;
bool colour;
bool showmeta;
bool showln;
};
```
And with the patch:
```
Index: X.0
==================================================================
--- X.0
+++ X.1
@@ -3,15 +3,16 @@
int last_line_onscreen;
int diff_flags;
int context;
int sbs;
int matched_line;
- int current_line;
+ int selected_line;
int lineno;
+ int gtl;
size_t ncols;
size_t nlines;
off_t *line_offsets;
bool eof;
bool colour;
bool showmeta;
bool showln;
};
```
*/
#define FSL_DIFF_SMALL_GAP 0
#if FSL_DIFF_SMALL_GAP
/*
** R[] is an array of six integer, two COPY/DELETE/INSERT triples for a
** pair of adjacent differences. Return true if the gap between these
** two differences is so small that they should be rendered as a single
** edit.
*/
static int smallGap2(const int *R, int ma, int mb){
int m = R[3];
ma += R[4] + m;
mb += R[5] + m;
if( ma*mb>DIFF_ALIGN_MX ) return 0;
return m<=2 || m<=(R[1]+R[2]+R[4]+R[5])/8;
}
#endif
static unsigned short diff_opt_context_lines(fsl_dibu_opt const * opt){
const unsigned short dflt = 5;
unsigned short n = opt ? opt->contextLines : dflt;
if( !n && (opt->diffFlags & FSL_DIFF2_CONTEXT_ZERO)==0 ){
n = dflt;
}
return n;
}
/*
** Minimum of two values
*/
static int diffMin(int a, int b){ return a<b ? a : b; }
/****************************************************************************/
/*
** Return the number between 0 and 100 that is smaller the closer pA and
** pB match. Return 0 for a perfect match. Return 100 if pA and pB are
** completely different.
**
** The current algorithm is as follows:
**
** (1) Remove leading and trailing whitespace.
** (2) Truncate both strings to at most 250 characters
** (3) If the two strings have a common prefix, measure that prefix
** (4) Find the length of the longest common subsequence that is
** at least 150% longer than the common prefix.
** (5) Longer common subsequences yield lower scores.
*/
static int match_dline2(fsl_dline * const pA, fsl_dline * const pB){
const char *zA; /* Left string */
const char *zB; /* right string */
int nA; /* Bytes in zA[] */
int nB; /* Bytes in zB[] */
int nMin;
int nPrefix;
int avg; /* Average length of A and B */
int i, j, k; /* Loop counters */
int best = 0; /* Longest match found so far */
int score; /* Final score. 0..100 */
unsigned char c; /* Character being examined */
unsigned char aFirst[256]; /* aFirst[X] = index in zB[] of first char X */
unsigned char aNext[252]; /* aNext[i] = index in zB[] of next zB[i] char */
zA = pA->z;
if( pA->nw==0 && pA->n ){
for(i=0; i<pA->n && diff_isspace(zA[i]); i++){}
pA->indent = i;
for(j=pA->n-1; j>i && diff_isspace(zA[j]); j--){}
pA->nw = j - i + 1;
}
zA += pA->indent;
nA = pA->nw;
zB = pB->z;
if( pB->nw==0 && pB->n ){
for(i=0; i<pB->n && diff_isspace(zB[i]); i++){}
pB->indent = i;
for(j=pB->n-1; j>i && diff_isspace(zB[j]); j--){}
pB->nw = j - i + 1;
}
zB += pB->indent;
nB = pB->nw;
if( nA>250 ) nA = 250;
if( nB>250 ) nB = 250;
avg = (nA+nB)/2;
if( avg==0 ) return 0;
nMin = nA;
if( nB<nMin ) nMin = nB;
if( nMin==0 ) return 68;
for(nPrefix=0; nPrefix<nMin && zA[nPrefix]==zB[nPrefix]; nPrefix++){}
best = 0;
if( nPrefix>5 && nPrefix>nMin/2 ){
best = nPrefix*3/2;
if( best>=avg - 2 ) best = avg - 2;
}
if( nA==nB && memcmp(zA, zB, nA)==0 ) return 0;
memset(aFirst, 0xff, sizeof(aFirst));
zA--; zB--; /* Make both zA[] and zB[] 1-indexed */
for(i=nB; i>0; i--){
c = (unsigned char)zB[i];
aNext[i] = aFirst[c];
aFirst[c] = i;
}
for(i=1; i<=nA-best; i++){
c = (unsigned char)zA[i];
for(j=aFirst[c]; j<nB-best && memcmp(&zA[i],&zB[j],best)==0; j = aNext[j]){
int limit = diffMin(nA-i, nB-j);
for(k=best; k<=limit && zA[k+i]==zB[k+j]; k++){}
if( k>best ) best = k;
}
}
score = 5 + ((best>=avg) ? 0 : (avg - best)*95/avg);
#if 0
fprintf(stderr, "A: [%.*s]\nB: [%.*s]\nbest=%d avg=%d score=%d\n",
nA, zA+1, nB, zB+1, best, avg, score);
#endif
/* Return the result */
return score;
}
// Forward decl for recursion's sake.
static int diffBlockAlignment(
fsl_dline * const aLeft, int nLeft,
fsl_dline * const aRight, int nRight,
fsl_dibu_opt const * pOpt,
unsigned char **pResult,
unsigned *pNResult
);
/*
** Make a copy of a list of nLine DLine objects from one array to
** another. Hash the new array to ignore whitespace.
*/
static void diffDLineXfer(
fsl_dline *aTo,
const fsl_dline *aFrom,
int nLine
){
int i, j, k;
uint64_t h, h2;
for(i=0; i<nLine; i++) aTo[i].iHash = 0;
for(i=0; i<nLine; i++){
const char *z = aFrom[i].z;
int n = aFrom[i].n;
for(j=0; j<n && diff_isspace(z[j]); j++){}
aTo[i].z = &z[j];
for(k=aFrom[i].n; k>j && diff_isspace(z[k-1]); k--){}
aTo[i].n = n = k-j;
aTo[i].indent = 0;
aTo[i].nw = 0;
for(h=0; j<k; j++){
char c = z[j];
if( !diff_isspace(c) ){
h = (h^c)*9000000000000000041LL;
}
}
aTo[i].h = h = ((h%281474976710597LL)<<FSL__LINE_LENGTH_MASK_SZ) | n;
h2 = h % nLine;
aTo[i].iNext = aTo[h2].iHash;
aTo[h2].iHash = i+1;
}
}
/*
** For a difficult diff-block alignment that was originally for
** the default consider-all-whitespace algorithm, try to find the
** longest common subsequence between the two blocks that involves
** only whitespace changes.
**
** Result is stored in *pOut and must be eventually fsl_free()d.
** Returns 0 on success, setting *pOut to NULL if no good match is
** found. Returns FSL_RC_OOM on allocation error.
*/
static int diffBlockAlignmentIgnoreSpace(
fsl_dline * const aLeft, int nLeft, /* Text on the left */
fsl_dline * const aRight, int nRight, /* Text on the right */
fsl_dibu_opt const *pOpt, /* Configuration options */
unsigned char ** pOut, /* OUTPUT: Result */
unsigned *pNResult /* OUTPUT: length of result */
){
fsl__diff_cx dc;
int iSX, iEX; /* Start and end of LCS on the left */
int iSY, iEY; /* Start and end of the LCS on the right */
unsigned char *a1, *a2;
int n1, n2, nLCS, rc = 0;
dc.aEdit = 0;
dc.nEdit = 0;
dc.nEditAlloc = 0;
dc.nFrom = nLeft;
dc.nTo = nRight;
dc.cmpLine = fsl_dline_cmp_ignore_ws;
dc.aFrom = fsl_malloc( sizeof(fsl_dline)*(nLeft+nRight) );
if(!dc.aFrom) return FSL_RC_OOM;
dc.aTo = &dc.aFrom[dc.nFrom];
diffDLineXfer(dc.aFrom, aLeft, nLeft);
diffDLineXfer(dc.aTo, aRight, nRight);
fsl__diff_optimal_lcs(&dc,0,nLeft,0,nRight,&iSX,&iEX,&iSY,&iEY);
fsl_free(dc.aFrom);
nLCS = iEX - iSX;
if( nLCS<5 ){
/* No good LCS was found */
*pOut = NULL;
*pNResult = 0;
return 0;
}
rc = diffBlockAlignment(aLeft,iSX,aRight,iSY,
pOpt,&a1, (unsigned *)&n1);
if(rc) return rc;
rc = diffBlockAlignment(aLeft+iEX, nLeft-iEX,
aRight+iEY, nRight-iEY,
pOpt, &a2, (unsigned *)&n2);
if(rc){
fsl_free(a1);
return rc;
}else{
unsigned char * x = (unsigned char *)fsl_realloc(a1, n1+nLCS+n2);
if(NULL==x){
fsl_free(a1);
fsl_free(a2);
return FSL_RC_OOM;
}
a1 = x;
}
memcpy(a1+n1+nLCS,a2,n2);
memset(a1+n1,3,nLCS);
fsl_free(a2);
*pNResult = (unsigned)(n1+n2+nLCS);
*pOut = a1;
return 0;
}
/*
** This is a helper route for diffBlockAlignment(). In this case,
** a very large block is encountered that might be too expensive to
** use the O(N*N) Wagner edit distance algorithm. So instead, this
** block implements a less-precise but faster O(N*logN) divide-and-conquer
** approach.
**
** Result is stored in *pOut and must be eventually fsl_free()d.
** Returns 0 on success. Returns FSL_RC_OOM on allocation error.
*/
static int diffBlockAlignmentDivideAndConquer(
fsl_dline * const aLeft, int nLeft, /* Text on the left */
fsl_dline * const aRight, int nRight, /* Text on the right */
fsl_dibu_opt const *pOpt, /* Configuration options */
unsigned char ** pOut, /* OUTPUT: result */
unsigned *pNResult /* OUTPUT: length of result */
){
fsl_dline *aSmall; /* The smaller of aLeft and aRight */
fsl_dline *aBig; /* The larger of aLeft and aRight */
int nSmall, nBig; /* Size of aSmall and aBig. nSmall<=nBig */
int iDivSmall, iDivBig; /* Divider point for aSmall and aBig */
int iDivLeft, iDivRight; /* Divider point for aLeft and aRight */
unsigned char *a1 = 0, *a2 = 0; /* Results of the alignments on two halves */
int n1, n2; /* Number of entries in a1 and a2 */
int score, bestScore; /* Score and best score seen so far */
int i; /* Loop counter */
int rc;
if( nLeft>nRight ){
aSmall = aRight;
nSmall = nRight;
aBig = aLeft;
nBig = nLeft;
}else{
aSmall = aLeft;
nSmall = nLeft;
aBig = aRight;
nBig = nRight;
}
iDivBig = nBig/2;
iDivSmall = nSmall/2;
bestScore = 10000;
for(i=0; i<nSmall; i++){
score = match_dline2(aBig+iDivBig, aSmall+i) + abs(i-nSmall/2)*2;
if( score<bestScore ){
bestScore = score;
iDivSmall = i;
}
}
if( aSmall==aRight ){
iDivRight = iDivSmall;
iDivLeft = iDivBig;
}else{
iDivRight = iDivBig;
iDivLeft = iDivSmall;
}
rc = diffBlockAlignment(aLeft,iDivLeft,aRight,iDivRight,
pOpt,&a1, (unsigned*)&n1);
if(!rc){
rc = diffBlockAlignment(aLeft+iDivLeft, nLeft-iDivLeft,
aRight+iDivRight, nRight-iDivRight,
pOpt, &a2, (unsigned*)&n2);
}
if(rc){
fsl_free(a1);
fsl_free(a2);
}else{
unsigned char * x = (unsigned char *)fsl_realloc(a1, n1+n2);
if(!x) rc = FSL_RC_OOM;
else{
a1 = x;
memcpy(a1+n1,a2,n2);
*pNResult = (unsigned)(n1+n2);
*pOut = a1;
}
fsl_free(a2);
}
return rc;
}
/*
** There is a change block in which nLeft lines of text on the left are
** converted into nRight lines of text on the right. This routine computes
** how the lines on the left line up with the lines on the right.
**
** The return value is a buffer of unsigned characters, obtained from
** fsl_malloc(). (The caller needs to free the `*pResult` value using
** fsl_free().) Entries in the returned array have values as follows:
**
** 1. Delete the next line of pLeft.
** 2. Insert the next line of pRight.
** 3. The next line of pLeft changes into the next line of pRight.
** 4. Delete one line from pLeft and add one line to pRight.
**
** The length of the returned array will be at most nLeft+nRight bytes.
** If the first bytes is 4, that means we could not compute reasonable
** alignment between the two blocks.
**
** Algorithm: Wagner's minimum edit-distance algorithm, modified by
** adding a cost to each match based on how well the two rows match
** each other. Insertion and deletion costs are 50. Match costs
** are between 0 and 100 where 0 is a perfect match 100 is a complete
** mismatch.
*/
int diffBlockAlignment(
fsl_dline * const aLeft, int nLeft, /* Text on the left */
fsl_dline * const aRight, int nRight, /* Text on the right */
fsl_dibu_opt const * pOpt, /* Configuration options */
unsigned char **pResult, /* Raw result */
unsigned *pNResult /* OUTPUT: length of result */
){
int i, j, k; /* Loop counters */
int *a = 0; /* One row of the Wagner matrix */
int *pToFree = 0; /* Space that needs to be freed */
unsigned char *aM = 0; /* Wagner result matrix */
int nMatch, iMatch; /* Number of matching lines and match score */
int aBuf[100]; /* Stack space for a[] if nRight not to big */
int rc = 0;
if( nLeft==0 ){
aM = fsl_malloc( nRight + 2 );
if(!aM) return FSL_RC_OOM;
memset(aM, 2, nRight);
*pNResult = nRight;
*pResult = aM;
return 0;
}
if( nRight==0 ){
aM = fsl_malloc( nLeft + 2 );
if(!aM) return FSL_RC_OOM;
memset(aM, 1, nLeft);
*pNResult = nLeft;
*pResult = aM;
return 0;
}
/* For large alignments, try to use alternative algorithms that are
** faster than the O(N*N) Wagner edit distance. */
if( nLeft*nRight>DIFF_ALIGN_MX
&& (pOpt->diffFlags & FSL_DIFF2_SLOW_SBS)==0 ){
if( (pOpt->diffFlags & FSL_DIFF2_IGNORE_ALLWS)==0 ){
*pResult = NULL;
rc = diffBlockAlignmentIgnoreSpace(aLeft, nLeft,aRight,nRight,
pOpt, pResult, pNResult);
if(rc || *pResult) return rc;
}
return diffBlockAlignmentDivideAndConquer(aLeft, nLeft,aRight, nRight,
pOpt, pResult, pNResult);
}
/* If we reach this point, we will be doing an O(N*N) Wagner minimum
** edit distance to compute the alignment.
*/
if( nRight < (int)(sizeof(aBuf)/sizeof(aBuf[0]))-1 ){
pToFree = 0;
a = aBuf;
}else{
a = pToFree = fsl_malloc( sizeof(a[0])*(nRight+1) );
if(!a){
rc = FSL_RC_OOM;
goto end;
}
}
aM = fsl_malloc( (nLeft+1)*(nRight+1) );
if(!aM){
rc = FSL_RC_OOM;
goto end;
}
/* Compute the best alignment */
for(i=0; i<=nRight; i++){
aM[i] = 2;
a[i] = i*50;
}
aM[0] = 0;
for(j=1; j<=nLeft; j++){
int p = a[0];
a[0] = p+50;
aM[j*(nRight+1)] = 1;
for(i=1; i<=nRight; i++){
int m = a[i-1]+50;
int d = 2;
if( m>a[i]+50 ){
m = a[i]+50;
d = 1;
}
if( m>p ){
int const score =
match_dline2(&aLeft[j-1], &aRight[i-1]);
if( (score<=90 || (i<j+1 && i>j-1)) && m>p+score ){
m = p+score;
d = 3 | score*4;
}
}
p = a[i];
a[i] = m;
aM[j*(nRight+1)+i] = d;
}
}
/* Compute the lowest-cost path back through the matrix */
i = nRight;
j = nLeft;
k = (nRight+1)*(nLeft+1)-1;
nMatch = iMatch = 0;
while( i+j>0 ){
unsigned char c = aM[k];
if( c>=3 ){
assert( i>0 && j>0 );
i--;
j--;
nMatch++;
iMatch += (c>>2);
aM[k] = 3;
}else if( c==2 ){
assert( i>0 );
i--;
}else{
assert( j>0 );
j--;
}
k--;
aM[k] = aM[j*(nRight+1)+i];
}
k++;
i = (nRight+1)*(nLeft+1) - k;
memmove(aM, &aM[k], i);
*pNResult = i;
*pResult = aM;
end:
fsl_free(pToFree);
return rc;
}
/*
** Format a diff using a fsl_dibu object
*/
static int fdb__format(
fsl__diff_cx * const cx,
fsl_dibu * const pBuilder
){
fsl_dline *A; /* Left side of the diff */
fsl_dline *B; /* Right side of the diff */
fsl_dibu_opt const * pOpt = pBuilder->opt;
const int *R; /* Array of COPY/DELETE/INSERT triples */
unsigned int a; /* Index of next line in A[] */
unsigned int b; /* Index of next line in B[] */
unsigned int r; /* Index into R[] */
unsigned int nr; /* Number of COPY/DELETE/INSERT triples to process */
unsigned int mxr; /* Maximum value for r */
unsigned int na, nb; /* Number of lines shown from A and B */
unsigned int i, j; /* Loop counters */
unsigned int m, ma, mb;/* Number of lines to output */
signed int skip; /* Number of lines to skip */
unsigned int contextLines; /* Lines of context above and below each change */
unsigned short passNumber = 0;
int rc = 0;
#define RC if(rc) goto end
#define METRIC(M) if(1==passNumber) ++pBuilder->metrics.M
pass_again:
contextLines = diff_opt_context_lines(pOpt);
skip = 0;
a = b = 0;
A = cx->aFrom;
B = cx->aTo;
R = cx->aEdit;
mxr = cx->nEdit;
//MARKER(("contextLines=%u, nEdit = %d, mxr=%u\n", contextLines, cx->nEdit, mxr));
while( mxr>2 && R[mxr-1]==0 && R[mxr-2]==0 ){ mxr -= 3; }
pBuilder->lnLHS = pBuilder->lnRHS = 0;
++passNumber;
if(pBuilder->start){
pBuilder->passNumber = passNumber;
rc = pBuilder->start(pBuilder);
RC;
}
for(r=0; r<mxr; r += 3*nr){
/* Figure out how many triples to show in a single block */
for(nr=1; R[r+nr*3]>0 && R[r+nr*3]<(int)contextLines*2; nr++){}
#if 0
/* MISSING: this "should" be replaced by a stateful predicate
function, probably in the fsl_dibu_opt class. */
/* If there is a regex, skip this block (generate no diff output)
** if the regex matches or does not match both insert and delete.
** Only display the block if one side matches but the other side does
** not.
*/
if( pOpt->pRe ){
int hideBlock = 1;
int xa = a, xb = b;
for(i=0; hideBlock && i<nr; i++){
int c1, c2;
xa += R[r+i*3];
xb += R[r+i*3];
c1 = re_dline_match(pOpt->pRe, &A[xa], R[r+i*3+1]);
c2 = re_dline_match(pOpt->pRe, &B[xb], R[r+i*3+2]);
hideBlock = c1==c2;
xa += R[r+i*3+1];
xb += R[r+i*3+2];
}
if( hideBlock ){
a = xa;
b = xb;
continue;
}
}
#endif
/* Figure out how many lines of A and B are to be displayed
** for this change block.
*/
if( R[r]>(int)contextLines ){
na = nb = contextLines;
skip = R[r] - contextLines;
}else{
na = nb = R[r];
skip = 0;
}
for(i=0; i<nr; i++){
na += R[r+i*3+1];
nb += R[r+i*3+2];
}
if( R[r+nr*3]>(int)contextLines ){
na += contextLines;
nb += contextLines;
}else{
na += R[r+nr*3];
nb += R[r+nr*3];
}
for(i=1; i<nr; i++){
na += R[r+i*3];
nb += R[r+i*3];
}
//MARKER(("Chunk header... a=%u, b=%u, na=%u, nb=%u, skip=%d\n", a, b, na, nb, skip));
if(pBuilder->chunkHeader
/* The following bit is a kludge to keep from injecting a chunk
header between chunks which are directly adjacent.
The problem, however, is that we cannot skip _reliably_
without also knowing how the next chunk aligns. If we skip
it here, the _previous_ chunk header may well be telling
the user a lie with regards to line numbers.
Fossil itself does not have this issue because it generates
these chunk headers directly in this routine, instead of in
the diff builder, depending on a specific flag being set in
builder->opt. Also (related), in that implementation, fossil
will collapse chunks which are separated by less than the
context distance into contiguous chunks (see below). Because
we farm out the chunkHeader lines to the builder, we cannot
reliably do that here.
*/
#if 0
&& !skip
#endif
){
rc = pBuilder->chunkHeader(pBuilder,
(uint32_t)(na ? a+skip+1 : a+skip),
(uint32_t)na,
(uint32_t)(nb ? b+skip+1 : b+skip),
(uint32_t)nb);
RC;
}
/* Show the initial common area */
a += skip;
b += skip;
m = R[r] - skip;
if( r ) skip -= contextLines;
//MARKER(("Show the initial common... a=%u, b=%u, m=%u, r=%u, skip=%d\n", a, b, m, r, skip));
if( skip>0 ){
if( NULL==pBuilder->chunkHeader && skip<(int)contextLines ){
/* 2021-09-27: BUG: this is incompatible with unified diff
format. The generated header lines say we're skipping X
lines but we then end up including lines which that header
says to skip. As a workaround, we'll only run this when
pBuilder->chunkHeader is NULL, noting that fossil's diff
builder interface does not have that method (and thus
doesn't have this issue, instead generating chunk headers
directly in this algorithm).
Without this block, our "utxt" diff builder can mimic
fossil's non-diff builder unified diff format, except that
we add Index lines (feature or bug?). With this block,
the header values output above are wrong.
*/
/* If the amount to skip is less that the context band, then
** go ahead and show the skip band as it is not worth eliding */
//MARKER(("skip %d < contextLines %d\n", skip, contextLines));
/* from fossil(1) from formatDiff() */
for(j=0; 0==rc && j<(unsigned)skip; j++){
//MARKER(("(A) COMMON\n"));
rc = pBuilder->common(pBuilder, &A[a+j-skip]);
}
}else{
rc = pBuilder->skip(pBuilder, skip);
}
RC;
}
for(j=0; 0==rc && j<m; j++){
//MARKER(("(B) COMMON\n"));
rc = pBuilder->common(pBuilder, &A[a+j]);
}
RC;
a += m;
b += m;
//MARKER(("Show the differences... a=%d, b=%d, m=%d\n", a, b, m));
/* Show the differences */
for(i=0; i<nr; i++){
unsigned int nAlign;
unsigned char *alignment = 0;
ma = R[r+i*3+1]; /* Lines on left but not on right */
mb = R[r+i*3+2]; /* Lines on right but not on left */
#if FSL_DIFF_SMALL_GAP
/* Try merging the current block with subsequent blocks, if the
** subsequent blocks are nearby and their result isn't too big.
*/
while( i<nr-1 && smallGap2(&R[r+i*3],ma,mb) ){
i++;
m = R[r+i*3];
ma += R[r+i*3+1] + m;
mb += R[r+i*3+2] + m;
}
#endif
/* Try to find an alignment for the lines within this one block */
rc = diffBlockAlignment(&A[a], ma, &B[b], mb, pOpt,
&alignment, &nAlign);
RC;
for(j=0; ma+mb>0; j++){
assert( j<nAlign );
switch( alignment[j] ){
case 1: {
/* Delete one line from the left */
METRIC(deletions);
rc = pBuilder->deletion(pBuilder, &A[a]);
if(rc) goto bail;
ma--;
a++;
break;
}
case 2: {
/* Insert one line on the right */
METRIC(insertions);
rc = pBuilder->insertion(pBuilder, &B[b]);
if(rc) goto bail;
assert( mb>0 );
mb--;
b++;
break;
}
case 3: {
/* The left line is changed into the right line */
if( 0==cx->cmpLine(&A[a], &B[b]) ){
rc = pBuilder->common(pBuilder, &A[a]);
}else{
METRIC(edits);
rc = pBuilder->edit(pBuilder, &A[a], &B[b]);
}
if(rc) goto bail;
assert( ma>0 && mb>0 );
ma--;
mb--;
a++;
b++;
break;
}
case 4: {
/* Delete from left then separately insert on the right */
METRIC(replacements);
rc = pBuilder->replacement(pBuilder, &A[a], &B[b]);
if(rc) goto bail;
ma--;
a++;
mb--;
b++;
break;
}
}
}
assert( nAlign==j );
fsl_free(alignment);
if( i<nr-1 ){
m = R[r+i*3+3];
for(j=0; 0==rc && j<m; j++){
//MARKER(("D common\n"));
rc = pBuilder->common(pBuilder, &A[a+j]);
}
RC;
b += m;
a += m;
}
continue;
bail:
assert(rc);
fsl_free(alignment);
goto end;
}
/* Show the final common area */
assert( nr==i );
m = R[r+nr*3];
if( m>contextLines ) m = contextLines;
for(j=0; 0==rc && j<m && j<contextLines; j++){
//MARKER(("E common\n"));
rc = pBuilder->common(pBuilder, &A[a+j]);
}
RC;
}
if( R[r]>(int)contextLines ){
rc = pBuilder->skip(pBuilder, R[r] - contextLines);
}
end:
#undef RC
#undef METRIC
if(0==rc){
if(pBuilder->finish) pBuilder->finish(pBuilder);
if(pBuilder->twoPass && 1==passNumber){
goto pass_again;
}
}
return rc;
}
/* MISSING(?) fossil(1) converts the diff inputs into utf8 with no
BOM. Whether we really want to do that here or rely on the caller
to is up for debate. If we do it here, we have to make the inputs
non-const, which seems "wrong" for a library API. */
#define blob_to_utf8_no_bom(A,B) (void)0
/**
Performs a diff of version 1 (pA) and version 2 (pB). ONE of
pBuilder or outRaw must be non-NULL. If pBuilder is not NULL, all
output for the diff is emitted via pBuilder. If outRaw is not NULL
then on success *outRaw is set to the array of diff triples,
transfering ownership to the caller, who must eventually fsl_free()
it. On error, *outRaw is not modified but pBuilder may have emitted
partial output. That is not knowable for the general
case. Ownership of pBuilder is not changed. If pBuilder is not NULL
then pBuilder->opt must be non-NULL.
*/
static int fsl_diff2_text_impl(fsl_buffer const *pA,
fsl_buffer const *pB,
fsl_dibu * const pBuilder,
fsl_dibu_opt const * const opt_,
int ** outRaw){
int rc = 0;
fsl__diff_cx c = fsl__diff_cx_empty;
bool ignoreWs = false;
int ansiOptCount = 0;
fsl_dibu_opt opt = *opt_
/*we need a copy for the sake of the FSL_DIFF2_INVERT flag*/;
if(!pA || !pB || (pBuilder && outRaw)) return FSL_RC_MISUSE;
blob_to_utf8_no_bom(pA, 0);
blob_to_utf8_no_bom(pB, 0);
if( opt.diffFlags & FSL_DIFF2_INVERT ){
char const * z;
fsl_buffer const *pTemp = pA;
pA = pB;
pB = pTemp;
z = opt.hashRHS; opt.hashRHS = opt.hashLHS; opt.hashLHS = z;
z = opt.nameRHS; opt.nameRHS = opt.nameLHS; opt.nameLHS = z;
}
#define AOPT(OPT) \
if(opt.ansiColor.OPT) ansiOptCount += (*opt.ansiColor.OPT) ? 1 : 0; \
else opt.ansiColor.OPT = ""
AOPT(insertion);
AOPT(edit);
AOPT(deletion);
#undef AOPT
if(0==ansiOptCount){
opt.ansiColor.reset = "";
}else if(!opt.ansiColor.reset || !*opt.ansiColor.reset){
opt.ansiColor.reset = "\x1b[0m";
}
ignoreWs = (opt.diffFlags & FSL_DIFF2_IGNORE_ALLWS)!=0;
if(FSL_DIFF2_IGNORE_ALLWS==(opt.diffFlags & FSL_DIFF2_IGNORE_ALLWS)){
c.cmpLine = fsl_dline_cmp_ignore_ws;
}else{
c.cmpLine = fsl_dline_cmp;
}
rc = fsl_break_into_dlines(fsl_buffer_cstr(pA), (fsl_int_t)pA->used,
(uint32_t*)&c.nFrom, &c.aFrom, opt.diffFlags);
if(rc) goto end;
rc = fsl_break_into_dlines(fsl_buffer_cstr(pB), (fsl_int_t)pB->used,
(uint32_t*)&c.nTo, &c.aTo, opt.diffFlags);
if(rc) goto end;
/* Compute the difference */
rc = fsl__diff_all(&c);
if(rc) goto end;
if( ignoreWs && c.nEdit==6 && c.aEdit[1]==0 && c.aEdit[2]==0 ){
rc = FSL_RC_DIFF_WS_ONLY;
goto end;
}
if( (opt.diffFlags & FSL_DIFF2_NOTTOOBIG)!=0 ){
int i, m, n;
int const * const a = c.aEdit;
int const mx = c.nEdit;
for(i=m=n=0; i<mx; i+=3){ m += a[i]; n += a[i+1]+a[i+2]; }
if( !n || n>10000 ){
rc = FSL_RC_RANGE;
/* diff_errmsg(pOut, DIFF_TOO_MANY_CHANGES, diffFlags); */
goto end;
}
}
//fsl__dump_triples(&c, __FILE__, __LINE__);
if( (opt.diffFlags & FSL_DIFF2_NOOPT)==0 ){
fsl__diff_optimize(&c);
}
//fsl__dump_triples(&c, __FILE__, __LINE__);
/**
Reference:
https://fossil-scm.org/home/file?ci=cae7036bb7f07c1b&name=src/diff.c&ln=2749-2804
Noting that:
- That function's return value is this one's *outRaw
- DIFF_NUMSTAT flag is not implemented. For that matter,
flags which result in output going anywhere except for
pBuilder->out are not implemented here, e.g. DIFF_RAW.
That last point makes this impl tiny compared to the original!
*/
if(pBuilder){
fsl_dibu_opt const * oldOpt = pBuilder->opt;
pBuilder->opt = &opt;
rc = fdb__format(&c, pBuilder);
pBuilder->opt = oldOpt;
}
end:
if(0==rc && outRaw){
*outRaw = c.aEdit;
c.aEdit = 0;
}
fsl__diff_cx_clean(&c);
return rc;
}
int fsl_diff_v2(fsl_buffer const * pv1,
fsl_buffer const * pv2,
fsl_dibu * const pBuilder){
return fsl_diff2_text_impl(pv1, pv2, pBuilder, pBuilder->opt, NULL);
}
int fsl_diff_v2_raw(fsl_buffer const * pv1,
fsl_buffer const * pv2,
fsl_dibu_opt const * const opt,
int **outRaw ){
return fsl_diff2_text_impl(pv1, pv2, NULL,
opt ? opt : &fsl_dibu_opt_empty,
outRaw);
}
#undef DIFF_ALIGN_MX
#undef blob_to_utf8_no_bom
#undef DICOSTATE
#undef FSL_DIFF_SMALL_GAP
#undef diff_isspace
#undef LENGTH
/* end of file ./src/diff.c */
/* end of file ./src/diff2.c */
/* start of file ./src/encode.c */
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/*
Copyright 2013-2021 The Libfossil Authors, see LICENSES/BSD-2-Clause.txt
SPDX-License-Identifier: BSD-2-Clause-FreeBSD
|
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29904
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|
-
+
|
if( pBomSize ) *pBomSize = bomSize;
return fsl_buffer_size(b)<bomSize
? false
: memcmp(z, bom, bomSize)==0;
}
bool fsl_invalid_utf8(fsl_buffer const * const b){
fsl_size_t n = 0;
fsl_size_t n;
const unsigned char *z = (unsigned char *) fsl_buffer_cstr2(b, &n);
unsigned char c; /* lead byte to be handled. */
if( n==0 ) return false; /* Empty file -> OK */
c = *z;
while( --n>0 ){
if( c>=0x80 ){
const unsigned char *def; /* pointer to range table*/
|
︙ | | |
32532
32533
32534
32535
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32537
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32539
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32543
32544
32545
32546
|
33825
33826
33827
33828
33829
33830
33831
33832
33833
33834
33835
33836
33837
33838
33839
|
-
+
|
" WHERE tagid=%d AND tagxref.rid=ancestor.rid"
" AND value=%Q AND tagtype>0)"
" LIMIT 1",
rid, rid, FSL_TAGID_BRANCH, zBranch
);
}
int fsl_branch_of_rid(fsl_cx * const f, fsl_id_t rid,
int fsl_branch_of_rid(fsl_cx * const f, fsl_int_t rid,
bool doFallback, char ** zOut ){
char *zBr = 0;
fsl_db * const db = fsl_cx_db_repo(f);
fsl_stmt st = fsl_stmt_empty;
int rc;
if(!fsl_needs_repo(f)) return FSL_RC_NOT_A_REPO;
assert(db);
|
︙ | | |
33397
33398
33399
33400
33401
33402
33403
33404
33405
33406
33407
33408
33409
33410
33411
|
34690
34691
34692
34693
34694
34695
34696
34697
34698
34699
34700
34701
34702
34703
34704
|
-
+
|
? fsl_cx_err_set(f, FSL_RC_ALREADY_EXISTS,
"File already exists and "
"allowOverwrite is false: %s",
opt->filename)
: FSL_RC_ALREADY_EXISTS;
}
if(f){
rc = fsl_close_scm_dbs(f)
rc = fsl_ckout_close(f)
/* Will fail if a transaction is active! */;
switch(rc){
case 0:
break;
default:
return rc;
}
|
︙ | | |
33799
33800
33801
33802
33803
33804
33805
33806
33807
33808
33809
33810
33811
33812
33813
33814
33815
33816
33817
33818
33819
33820
33821
|
35092
35093
35094
35095
35096
35097
35098
35099
35100
35101
35102
35103
35104
35105
35106
35107
35108
35109
35110
35111
35112
35113
35114
|
-
-
+
+
-
+
|
fsl_stmt_finalize(&s);
}
return rc;
}
}
/* UNTESTED */
bool fsl_repo_is_readonly(fsl_cx const * f){
if(!f || !f->dbMain) return false;
char fsl_repo_is_readonly(fsl_cx const * f){
if(!f || !f->dbMain) return 0;
else{
int const roleId = f->ckout.db.dbh ? FSL_DBROLE_MAIN : FSL_DBROLE_REPO
/* If CKOUT is attached, it is the main DB and REPO is ATTACHed. */
;
char const * zRole = fsl_db_role_name(roleId);
assert(f->dbMain);
return sqlite3_db_readonly(f->dbMain->dbh, zRole) ? true : false;
return sqlite3_db_readonly(f->dbMain->dbh, zRole) ? 1 : 0;
}
}
int fsl__repo_record_filename(fsl_cx * const f){
fsl_db * dbR = fsl_needs_repo(f);
fsl_db * dbC;
fsl_db * dbConf;
|
︙ | | |
34913
34914
34915
34916
34917
34918
34919
34920
34921
34922
34923
34924
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34927
34928
34929
34930
34931
34932
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34934
34935
34936
34937
34938
34939
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34942
34943
34944
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34946
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34948
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34951
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34956
34957
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34959
34960
34961
34962
34963
34964
34965
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34967
34968
34969
34970
34971
34972
34973
34974
34975
34976
34977
34978
34979
34980
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34991
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35000
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35005
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35009
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|
36206
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36208
36209
36210
36211
36212
36213
36214
36215
36216
36217
36218
36219
|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
|
bool fsl_repo_forbids_delta_manifests(fsl_cx * const f){
return fsl_config_get_bool(f, FSL_CONFDB_REPO, false,
"forbid-delta-manifests");
}
int fsl_tkt_id_to_rids(fsl_cx * const f, char const * tktId,
fsl_id_t ** ridList){
fsl_db * const dbR = fsl_needs_repo(f);
if(!dbR) return FSL_RC_NOT_A_REPO;
fsl_stmt q = fsl_stmt_empty;
int rc;
fsl_id_t * rids = 0;
int const isFullId = fsl_is_uuid(tktId);
unsigned int n = 0;
if(FSL_STRLEN_SHA1<isFullId){
return fsl_cx_err_set(f, FSL_RC_RANGE,
"Ticket ID is not valid. Expecting <=%d bytes of "
"lower-case hex values.", FSL_STRLEN_SHA1);
}
rc = fsl_cx_transaction_begin(f);
if(rc) return rc;
if(isFullId){
// Expect an exact match...
assert(FSL_STRLEN_SHA1==isFullId);
rc = fsl_cx_prepare(f, &q,
"SELECT b.rid, b.uuid FROM blob b, tagxref x, tag t "
"WHERE t.tagname = 'tkt-'||%Q "
"AND t.tagid=x.tagid AND x.rid=b.rid "
"ORDER BY x.mtime, x.rowid",
tktId);
}else{
/* Check for an ambiguous match of an ID prefix...
*/
int32_t const c =
fsl_db_g_int32(dbR, -1,
"SELECT COUNT(distinct tagname) FROM tag "
"WHERE tagname GLOB 'tkt-'||%Q||'*'", tktId);
if(c<0){
rc = fsl_cx_uplift_db_error(f, dbR);
goto end;
}else if(0==c){
n = 0;
goto not_found;
}else if(c>1){
rc = fsl_cx_err_set(f, FSL_RC_AMBIGUOUS,
"Ticket ID prefix is ambiguous: %s",
tktId);
goto end;
}
rc = fsl_cx_prepare(f, &q,
"SELECT b.rid, b.uuid FROM blob b, tagxref x, tag t "
"WHERE t.tagname GLOB 'tkt-'||%Q||'*' "
"AND t.tagid=x.tagid AND x.rid=b.rid "
"ORDER BY x.mtime, x.rowid",
tktId);
}
if(rc) return rc;
// Count how many we have to allocate for...
while(FSL_RC_STEP_ROW==fsl_stmt_step(&q)) ++n;
fsl_stmt_reset(&q);
not_found:
if(!n){
rc = fsl_cx_err_set(f, FSL_RC_NOT_FOUND,
"No ticket found with ID%s %s.",
isFullId ? "" : " prefix",
tktId);
goto end;
}
// Populate the result list...
rids = (fsl_id_t*)fsl_malloc(sizeof(fsl_id_t)*(n+1));
if(!rids){
rc = FSL_RC_OOM;
goto end;
}
unsigned i = 0;
while(FSL_RC_STEP_ROW==fsl_stmt_step(&q)){
assert(i<n);
rids[i++] = fsl_stmt_g_id(&q, 0);
}
assert(i==n);
rids[i] = 0;
end:
if(0==rc) *ridList = rids;
else fsl_free(rids);
fsl_stmt_finalize(&q);
fsl_cx_transaction_end(f,false);
return rc;
}
#undef MARKER
/* end of file ./src/repo.c */
/* start of file ./src/schema.c */
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/*
Copyright 2013-2021 Stephan Beal (https://wanderinghorse.net).
|
︙ | | |
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|
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43310
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|
-
+
|
32, 91, 115, 112, 108, 105, 116, 32, 91, 114, 101, 97, 100, 32, 36, 105, 110, 93, 32, 92,
110, 93, 10, 32, 32, 32, 32, 99, 108, 111, 115, 101, 32, 36, 105, 110, 10, 32, 32, 125,
10, 32, 32, 115, 101, 116, 32, 78, 32, 91, 108, 108, 101, 110, 103, 116, 104, 32, 36, 100,
105, 102, 102, 116, 120, 116, 93, 10, 32, 32, 115, 101, 116, 32, 105, 105, 32, 48, 10, 32,
32, 115, 101, 116, 32, 110, 68, 105, 102, 102, 115, 32, 48, 10, 32, 32, 115, 101, 116, 32,
110, 49, 32, 48, 10, 32, 32, 115, 101, 116, 32, 110, 50, 32, 48, 32, 32, 10, 32, 32,
97, 114, 114, 97, 121, 32, 115, 101, 116, 32, 119, 105, 100, 116, 104, 115, 32, 123, 116, 120,
116, 32, 51, 32, 108, 110, 32, 54, 32, 109, 107, 114, 32, 49, 125, 10, 32, 32, 119, 104,
116, 32, 51, 32, 108, 110, 32, 51, 32, 109, 107, 114, 32, 49, 125, 10, 32, 32, 119, 104,
105, 108, 101, 32, 123, 91, 115, 101, 116, 32, 108, 105, 110, 101, 32, 91, 103, 101, 116, 76,
105, 110, 101, 32, 36, 100, 105, 102, 102, 116, 120, 116, 32, 36, 78, 32, 105, 105, 93, 93,
32, 33, 61, 32, 45, 49, 125, 32, 123, 10, 32, 32, 32, 32, 115, 119, 105, 116, 99, 104,
32, 45, 45, 32, 91, 108, 105, 110, 100, 101, 120, 32, 36, 108, 105, 110, 101, 32, 48, 93,
32, 123, 10, 32, 32, 32, 32, 32, 32, 70, 73, 76, 69, 32, 123, 10, 32, 32, 32, 32,
32, 32, 32, 32, 105, 110, 99, 114, 32, 110, 68, 105, 102, 102, 115, 10, 32, 32, 32, 32,
32, 32, 32, 32, 102, 111, 114, 101, 97, 99, 104, 32, 119, 120, 32, 91, 108, 105, 115, 116,
|
︙ | | |
Changes to lib/libfossil.h.
Added signify/fnc-07-release.pub.
Deleted signify/fnc-09-release.pub.
Deleted src/diff.c.
Changes to src/fnc.1.
Changes to src/fnc.c.
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-
-
-
-
+
-
-
+
|
/*
* Copyright (c) 2021, 2022 Mark Jamsek <mark@jamsek.com>
* Copyright (c) 2013-2021 Stephan Beal <https://wanderinghorse.net>
* Copyright (c) 2020 Stefan Sperling <stsp@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* _POSIX_C_SOURCE >= 199309L needed for sigaction() & sigemptyset() on Linux,
* but glibc docs claim _XOPEN_SOURCE >= 700 has the same effect, plus we need
* This _POSIX_C_SOURCE bit really belongs in a config.h, but in the
* name of expedience...
* _XOPEN_SOURCE >= 500 for ncurses wchar APIs on linux.
*/
#ifdef __linux__
# ifndef _XOPEN_SOURCE
# define _XOPEN_SOURCE 700
# endif /* _XOPEN_SOURCE */
# ifndef _DEFAULT_SOURCE
# define _DEFAULT_SOURCE /* strsep() on glibc >= 2.19. */
#if defined __linux__
# if !defined(_XOPEN_SOURCE)
# define _XOPEN_SOURCE 700
/*
* _POSIX_C_SOURCE >= 199309L needed for sigaction(), sigemptyset() on Linux,
* but glibc docs claim that _XOPEN_SOURCE>=700 has the same effect, PLUS
* we need _XOPEN_SOURCE>=500 for ncurses wide-char APIs on linux.
*/
# endif
# if !defined(_DEFAULT_SOURCE)
# define _DEFAULT_SOURCE
/* Needed for strsep() on glibc >= 2.19. */
# endif /* _DEFAULT_SOURCE */
# ifdef __has_include
# if __has_include("linux/landlock.h")
# define HAVE_LANDLOCK
# include <linux/landlock.h>
# include <linux/prctl.h>
# include <sys/prctl.h>
# include <sys/syscall.h>
# include <fcntl.h>
# include <libgen.h>
# endif /* LANDLOCK_H */
# endif
# endif /* __has_include */
#endif /* __linux__ */
#endif
#ifdef FCLI_USE_SIGACTION
#define FCLI_USE_SIGACTION 0 /* We want C-c to exit. */
#endif
#include <sys/queue.h>
#include <sys/ioctl.h>
|
︙ | | |
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-
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|
#include <libgen.h>
#include <regex.h>
#include <signal.h>
#include <wchar.h>
#include <langinfo.h>
#include "libfossil.h"
#include "diff.h"
#include "settings.h"
#define FNC_VERSION VERSION /* cf. Makefile */
/* Utility macros. */
#define MIN(_a, _b) ((_a) < (_b) ? (_a) : (_b))
#define MAX(_a, _b) ((_a) > (_b) ? (_a) : (_b))
#define ABS(_n) ((_n) >= 0 ? (_n) : -(_n))
#ifndef CTRL
#if !defined(CTRL)
#define CTRL(key) ((key) & 037) /* CTRL+<key> input. */
#endif
#define nitems(a) (sizeof((a)) / sizeof((a)[0]))
#define ndigits(_d, _n) do { _d++; } while (_n /= 10)
#define STRINGIFYOUT(s) #s
#define STRINGIFY(s) STRINGIFYOUT(s)
#define CONCATOUT(a, b) a ## b
|
︙ | | |
112
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|
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|
-
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-
-
-
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-
+
+
-
-
-
-
+
|
#if DEBUG
#define RC(r, fmt, ...) fcli_err_set(r, "%s::%s " fmt, \
__func__, FILE_POSITION, __VA_ARGS__)
#else
#define RC(r, fmt, ...) fcli_err_set(r, fmt, __VA_ARGS__)
#endif /* DEBUG */
/* fossil(1) db-related paths. */
#define REPODB fsl_cx_db_file_repo(fcli_cx(), NULL)
#define REPODIR getdirname(REPODB, -1, false)
#define CKOUTDIR fsl_cx_ckout_dir_name(fcli_cx(), NULL)
/* Portability macros. */
#ifndef __OpenBSD__
# ifndef HAVE_STRTONUM /* Use strtol and a range check to emulate strtonum. */
# define strtonum(s, min, max, o) strtol(s, (char **)o, 10)
#ifndef HAVE_STRTONUM
# define strtonum(s, min, max, o) strtol(s, (char **)o, 10)
# define inrange(n, min, max) (((n) >= (min)) && ((n) <= (max)))
# endif /* HAVE_STRTONUM */
#else
# define inrange(n, min, max) true
#endif /* OpenBSD */
#endif
#ifndef __dead
#define __dead __attribute__((noreturn))
#endif
#ifndef TAILQ_FOREACH_SAFE
/* Rewrite of OpenBSD 6.9 sys/queue.h for Linux builds. */
|
︙ | | |
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|
const char *filter_tag; /* Only load commits with <tag>. */
const char *filter_branch; /* Only load commits from <branch>. */
const char *filter_user; /* Only load commits from <user>. */
const char *filter_type; /* Placeholder for repeatable types. */
const char *glob; /* Only load commits containing glob */
bool utc; /* Display UTC sans user local time. */
/* Blame options. */
const char *lineno; /* Line to open blame view. */
/* Diff options. */
const char *context; /* Number of context lines. */
bool sbs; /* Display side-by-side diff. */
bool ws; /* Ignore whitespace-only changes. */
bool nocolour; /* Disable colour in diff output. */
bool quiet; /* Disable verbose diff output. */
bool invert; /* Toggle inverted diff output. */
bool showln; /* Display line numbers in diff. */
/* Branch options. */
const char *before; /* Last branch change before date. */
const char *after; /* Last branch change after date. */
const char *sort; /* Lexicographical, MRU, open/closed. */
bool closed; /* Show only closed branches. */
bool open; /* Show only open branches */
bool noprivate; /* Don't show private branches. */
/* Config options. */
bool lsconf; /* List all defined settings. */
bool unset; /* Unset the specified setting. */
/* Command line flags and help. */
fcli_help_info fnc_help; /* Global help. */
fcli_cliflag cliflags_global[3]; /* Global options. */
fcli_command cmd_args[7]; /* App commands. */
fcli_cliflag cliflags_timeline[13]; /* Timeline options. */
fcli_cliflag cliflags_diff[10]; /* Diff options. */
fcli_cliflag cliflags_diff[8]; /* Diff options. */
fcli_cliflag cliflags_tree[5]; /* Tree options. */
fcli_cliflag cliflags_blame[8]; /* Blame options. */
fcli_cliflag cliflags_blame[7]; /* Blame options. */
fcli_cliflag cliflags_branch[11]; /* Branch options. */
fcli_cliflag cliflags_config[5]; /* Config options. */
} fnc_init = {
NULL, /* cmdarg copy of argv[1] to aid usage/error report. */
NULL, /* sym(bolic name) of commit to open defaults to tip. */
NULL, /* path for tree to open or timeline to find commits. */
0, /* err fnc error state. */
false, /* hflag if --help is requested. */
false, /* vflag if --version is requested. */
false, /* reverse branch sort/annotation defaults to off. */
{NULL, 0}, /* filter_types defaults to indiscriminate. */
{0}, /* nrecords defaults to all commits. */
NULL, /* filter_tag defaults to indiscriminate. */
NULL, /* filter_branch defaults to indiscriminate. */
NULL, /* filter_user defaults to indiscriminate. */
NULL, /* filter_type temp placeholder for filter_types cb. */
NULL, /* glob filter defaults to off; all commits are shown */
false, /* utc defaults to off (i.e., show user local time). */
NULL, /* lineno default: open blame at the first line. */
NULL, /* context defaults to five context lines. */
false, /* sbs diff defaults to false (show unified diff). */
false, /* ws defaults to acknowledge whitespace. */
false, /* nocolour defaults to off (i.e., use diff colours). */
false, /* quiet defaults to off (i.e., verbose diff is on). */
false, /* invert diff defaults to off. */
false, /* showln in diff defaults to off. */
NULL, /* before defaults to any time. */
NULL, /* after defaults to any time. */
NULL, /* sort by MRU or open/closed (dflt: lexicographical) */
false, /* closed only branches is off (defaults to all). */
false, /* open only branches is off by (defaults to all). */
false, /* noprivate is off (default to show private branch). */
false, /* do not list all defined settings by default. */
|
︙ | | |
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"supported terminals. Colour can also be toggled with the 'c' "
"\n key binding in diff view when this option is not used."),
FCLI_FLAG_BOOL("h", "help", NULL,
"Display diff command help and usage."),
FCLI_FLAG_BOOL("i", "invert", &fnc_init.invert,
"Invert difference between artifacts. Inversion can also be "
"toggled\n with the 'i' key binding in diff view."),
FCLI_FLAG_BOOL("l", "line-numbers", &fnc_init.showln,
"Show file line numbers in diff output. Line numbers can also be "
"toggled\n with the 'L' key binding in diff view."),
FCLI_FLAG_BOOL("q", "quiet", &fnc_init.quiet,
"Disable verbose diff output; that is, do not output complete"
" content\n of newly added or deleted files. Verbosity can also"
" be toggled with\n the 'v' key binding in diff view."),
FCLI_FLAG_CSTR("R", "repo", "<path>", NULL,
"Use the fossil(1) repository located at <path> for this diff\n "
"invocation."),
FCLI_FLAG_BOOL("s", "sbs", &fnc_init.sbs,
"Display a side-by-side, rather than the default unified, diff. "
"This\n option can alse be toggled with the 'S' key binding in "
"diff view."),
FCLI_FLAG_BOOL("w", "whitespace", &fnc_init.ws,
"Ignore whitespace-only changes when displaying diff. This option "
"can\n also be toggled with the 'w' key binding in diff view."),
FCLI_FLAG("x", "context", "<n>", &fnc_init.context,
"Show <n> context lines when displaying diff; <n> is capped at 64."
"\n Negative values are a no-op."),
fcli_cliflag_empty_m
|
︙ | | |
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
|
403
404
405
406
407
408
409
410
411
412
413
414
415
416
|
-
-
|
"\tISO8601 date\n"
"\tISO8601 timestamp\n"
"\t{tip,current,prev,next}\n "
"For a complete list of symbols see Fossil's Check-in Names:\n "
"https://fossil-scm.org/home/doc/trunk/www/checkin_names.wiki"),
FCLI_FLAG_BOOL("h", "help", NULL,
"Display blame command help and usage."),
FCLI_FLAG("l", "line", "<lineno>", &fnc_init.lineno,
"Open annotated file at <lineno>."),
FCLI_FLAG("n", "limit", "<n>", &fnc_init.nrecords.zlimit,
"Limit depth of blame history to <n> commits or seconds. Denote the"
"\n latter by postfixing 's' (e.g., 30s). Useful for large files"
" with\n extensive history. Persists for the duration of the "
"session."),
FCLI_FLAG_CSTR("R", "repo", "<path>", NULL,
"Use the fossil(1) repository located at <path> for this blame\n"
|
︙ | | |
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
|
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
|
-
+
-
-
-
-
|
FNC_DIFF_WIKI
};
struct input {
void *data;
char *prompt;
enum input_type type;
int flags;
bool clear;
#define SR_CLREOL 1 << 0
#define SR_UPDATE 1 << 1
#define SR_SLEEP 1 << 2
#define SR_RESET 1 << 3
char buf[BUFSIZ];
long ret;
};
struct fnc_colour {
STAILQ_ENTRY(fnc_colour) entries;
regex_t regex;
|
︙ | | |
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
|
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
|
-
+
-
+
|
* fnc_parent_tree(s) to be tracked.
*/
struct fnc_parent_tree {
TAILQ_ENTRY(fnc_parent_tree) entry;
struct fnc_tree_object *tree;
struct fnc_tree_entry *first_entry_onscreen;
struct fnc_tree_entry *selected_entry;
int selected;
int selected_idx;
};
pthread_mutex_t fnc_mutex = PTHREAD_MUTEX_INITIALIZER;
struct fnc_tl_thread_cx {
struct commit_queue *commits;
struct commit_entry **first_commit_onscreen;
struct commit_entry **selected_entry;
struct commit_entry **selected_commit;
fsl_db *db;
fsl_stmt *q;
regex_t *regex;
char *path; /* Match commits involving path. */
enum fnc_search_state *search_status;
enum fnc_search_mvmnt *searching;
int spin_idx;
|
︙ | | |
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
|
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
|
-
+
-
-
-
-
-
-
-
-
+
-
-
+
-
-
|
};
struct fnc_tl_view_state {
struct fnc_tl_thread_cx thread_cx;
struct commit_queue commits;
struct commit_entry *first_commit_onscreen;
struct commit_entry *last_commit_onscreen;
struct commit_entry *selected_entry;
struct commit_entry *selected_commit;
struct commit_entry *matched_commit;
struct commit_entry *search_commit;
struct fnc_colours colours;
struct {
fsl_uuid_str ogid;
fsl_uuid_str id;
char *type;
fsl_id_t ogrid;
fsl_id_t rid;
} tagged;
const char *curr_ckout_uuid;
const char *glob; /* Match commits containing glob. */
char *path; /* Match commits involving path. */
int selected;
int selected_idx;
int nscrolled;
sig_atomic_t quit;
pthread_t thread_id;
bool colour;
bool showmeta;
};
struct fnc_pathlist_entry {
TAILQ_ENTRY(fnc_pathlist_entry) entry;
const char *path;
size_t pathlen;
void *data; /* XXX May want to save id, mode, etc. */
};
TAILQ_HEAD(fnc_pathlist_head, fnc_pathlist_entry);
struct index {
size_t *lineno;
off_t *offset;
uint32_t n;
uint32_t idx;
};
struct fnc_diff_view_state {
struct fnc_view *timeline_view;
struct fnc_commit_artifact *selected_entry;
struct fnc_commit_artifact *selected_commit;
struct fnc_pathlist_head *paths;
fsl_buffer buf;
struct fnc_colours colours;
struct index index;
FILE *f;
fsl_uuid_str id1;
fsl_uuid_str id2;
int first_line_onscreen;
int last_line_onscreen;
int diff_flags;
int context;
int sbs;
int matched_line;
int selected_line;
int maxx;
int lineno;
int gtl;
uint32_t ndlines;
size_t ncols;
size_t nlines;
enum line_type *dlines;
enum line_attr sline;
off_t *line_offsets;
bool eof;
bool colour;
bool showmeta;
bool showln;
};
|
︙ | | |
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
|
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
|
-
+
|
struct fnc_tree_entry *selected_entry;
struct fnc_tree_entry *matched_entry;
struct fnc_colours colours;
char *tree_label; /* Headline string. */
fsl_uuid_str commit_id;
fsl_id_t rid;
int ndisplayed;
int selected;
int selected_idx;
bool colour;
bool show_id;
bool show_date;
};
struct fnc_blame_line {
fsl_uuid_str id;
|
︙ | | |
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
|
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
|
-
+
-
|
fsl_uuid_str id;
};
struct fnc_blame_view_state {
struct fnc_blame blame;
struct fnc_commit_id_queue blamed_commits;
struct fnc_commit_qid *blamed_commit;
struct fnc_commit_artifact *selected_entry;
struct fnc_commit_artifact *selected_commit;
struct fnc_colours colours;
fsl_uuid_str commit_id;
const char *lineno;
char *path;
int first_line_onscreen;
int last_line_onscreen;
int selected_line;
int matched_line;
int spin_idx;
int gtl;
|
︙ | | |
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
|
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
|
-
+
|
TAILQ_HEAD(fnc_branchlist_head, fnc_branchlist_entry);
struct fnc_branch_view_state {
struct fnc_branchlist_head branches;
struct fnc_branchlist_entry *first_branch_onscreen;
struct fnc_branchlist_entry *last_branch_onscreen;
struct fnc_branchlist_entry *matched_branch;
struct fnc_branchlist_entry *selected_entry;
struct fnc_branchlist_entry *selected_branch;
struct fnc_colours colours;
const char *branch_glob;
double dateline;
int branch_flags;
#define BRANCH_LS_CLOSED_ONLY 0x001 /* Show closed branches only. */
#define BRANCH_LS_OPEN_ONLY 0x002 /* Show open branches only. */
#define BRANCH_LS_OPEN_CLOSED 0x003 /* Show open & closed branches (dflt). */
|
︙ | | |
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
|
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
|
-
-
-
-
+
+
+
+
|
int when;
bool colour;
bool show_date;
bool show_id;
};
struct line {
char *buf;
int sz;
enum line_type type;
bool selected;
char buf[BUFSIZ];
int sz;
enum line_type type;
bool selected;
};
struct position {
int col;
int line;
int offset;
};
|
︙ | | |
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
|
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
|
-
-
-
+
+
+
-
-
+
-
-
-
+
+
-
-
+
-
-
-
-
-
+
+
+
+
+
+
+
-
+
+
-
-
+
+
-
+
-
|
static int block_main_thread_signals(void);
static int build_commits(struct fnc_tl_thread_cx *);
static int commit_builder(struct fnc_commit_artifact **, fsl_id_t,
fsl_stmt *);
static int signal_tl_thread(struct fnc_view *, int);
static int draw_commits(struct fnc_view *);
static void parse_emailaddr_username(char **);
static int formatln(wchar_t **, int *, const char *, size_t, int,
bool);
static size_t expand_tab(char **, const char *, int);
static int formatln(wchar_t **, int *, const char *, int, int,
size_t, bool);
static size_t expand_tab(char *, size_t, const char *, int);
static int multibyte_to_wchar(const char *, wchar_t **, size_t *);
static int write_commit_line(struct fnc_view *,
struct fnc_commit_artifact *, int);
static int view_input(struct fnc_view **, int *,
struct fnc_view *, struct view_tailhead *);
static int cycle_view(struct fnc_view *);
static int toggle_fullscreen(struct fnc_view **,
struct fnc_view *);
static int help(struct fnc_view *);
static int padpopup(struct fnc_view *, int, int, FILE *,
const char *);
static void centerprint(WINDOW *, int, int, int, const char *,
chtype);
static int tl_input_handler(struct fnc_view **, struct fnc_view *,
int);
static int move_tl_cursor_down(struct fnc_view *, uint16_t);
static void move_tl_cursor_up(struct fnc_view *, uint16_t, bool);
static int timeline_scroll_down(struct fnc_view *, int);
static void timeline_scroll_up(struct fnc_tl_view_state *, int);
static bool tagged_commit(struct fnc_tl_view_state *);
static void select_commit(struct fnc_tl_view_state *);
static int request_view(struct fnc_view **, struct fnc_view *,
enum fnc_view_id);
static int init_view(struct fnc_view **, struct fnc_view *,
enum fnc_view_id, int, int);
static enum view_mode view_get_split(struct fnc_view *, int *, int *);
static int split_view(struct fnc_view *, int *);
static int offset_selected_line(struct fnc_view *);
static int view_split_start_col(int);
static int view_split_start_ln(int);
static int make_splitscreen(struct fnc_view *);
static int make_fullscreen(struct fnc_view *);
static int view_search_start(struct fnc_view *);
static void tl_grep_init(struct fnc_view *);
static int tl_search_next(struct fnc_view *);
static bool find_commit_match(struct fnc_commit_artifact *,
regex_t *);
static int init_diff_view(struct fnc_view **, int, int,
struct fnc_commit_artifact *, struct fnc_view *,
struct fnc_commit_artifact *, struct fnc_view *);
bool);
static int open_diff_view(struct fnc_view *,
struct fnc_commit_artifact *, int, bool, bool,
bool, bool, bool, struct fnc_view *, bool,
struct fnc_commit_artifact *, int, bool, bool, bool,
struct fnc_view *, bool,
struct fnc_pathlist_head *);
static void show_diff_status(struct fnc_view *);
static int create_diff(struct fnc_diff_view_state *);
static int create_changeset(struct fnc_commit_artifact *);
static int write_commit_meta(struct fnc_diff_view_state *);
static int countlines(const char *);
static int wrapline(char *, fsl_size_t,
static int wrapline(char *, fsl_size_t ncols_avail,
struct fnc_diff_view_state *, off_t *);
static int add_line_offset(off_t **, size_t *, off_t);
static int add_line_type(enum line_type **, enum line_type,
uint32_t *, uint32_t, bool);
static int diff_commit(struct fnc_diff_view_state *);
static int diff_checkout(struct fnc_diff_view_state *);
static int write_diff_meta(struct fnc_diff_view_state *,
const char *, fsl_uuid_str, const char *,
fsl_uuid_str, enum fsl_ckout_change_e);
static int write_diff_meta(fsl_buffer *, const char *,
fsl_uuid_str, const char *, fsl_uuid_str, int,
enum fsl_ckout_change_e);
static int diff_file(struct fnc_diff_view_state *, fsl_buffer *,
const char *, fsl_uuid_str, const char *,
enum fsl_ckout_change_e);
static int fnc_diff_builder(fsl_dibu **, fsl_uuid_cstr,
fsl_uuid_cstr, const char *, const char *, int,
int, fsl_buffer *);
static void fnc_free_diff_builder(fsl_dibu *);
static int diff_non_checkin(struct fnc_diff_view_state *);
static int diff_non_checkin(fsl_buffer *,
struct fnc_commit_artifact *, int, int, int);
static int diff_file_artifact(struct fnc_diff_view_state *,
fsl_id_t, const fsl_card_F *, const fsl_card_F *,
fsl_ckout_change_e);
static int show_diff(struct fnc_view *);
static int write_diff(struct fnc_view *, char *);
static int match_line(const char *, regex_t *, size_t,
regmatch_t *);
static int draw_matched_line(struct fnc_view *, const char *,
int *, int, int, regmatch_t *, attr_t);
static int draw_matched_line(struct fnc_view *, int *,
int, regmatch_t *, attr_t);
static void drawborder(struct fnc_view *);
static int diff_input_handler(struct fnc_view **,
struct fnc_view *, int);
static int request_tl_commits(struct fnc_view *);
static int reset_diff_view(struct fnc_view *, bool);
static int set_selected_commit(struct fnc_diff_view_state *,
struct commit_entry *);
static void diff_grep_init(struct fnc_view *);
static int find_next_match(struct fnc_view *);
static void grep_set_view(struct fnc_view *, FILE **, off_t **,
size_t *, int **, int **, int **, int **,
size_t *, int **, int **, int **, int **);
uint8_t *);
static int view_close(struct fnc_view *);
static int map_repo_path(char **);
static int init_timeline_view(struct fnc_view **, int, int,
fsl_id_t, const char *, const char *);
static bool path_is_child(const char *, const char *, size_t);
static int path_skip_common_ancestor(char **, const char *,
size_t, const char *, size_t);
|
︙ | | |
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
|
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
|
-
+
-
+
|
static int tree_scroll_down(struct fnc_view *, int);
static int visit_subtree(struct fnc_tree_view_state *,
struct fnc_tree_object *);
static int tree_entry_get_symlink_target(char **,
struct fnc_tree_entry *);
static int match_tree_entry(struct fnc_tree_entry *, regex_t *);
static void fnc_object_tree_close(struct fnc_tree_object *);
static void fnc_close_repo_tree(struct fnc_repository_tree *);
static void fnc_close_repository_tree(struct fnc_repository_tree *);
static int open_blame_view(struct fnc_view *, char *,
fsl_uuid_str, fsl_id_t, int, const char *);
fsl_uuid_str, fsl_id_t, int);
static int run_blame(struct fnc_view *);
static int fnc_dump_buffer_to_file(off_t *, int *, off_t **,
FILE *, fsl_buffer *);
static int show_blame_view(struct fnc_view *);
static void *blame_thread(void *);
static int blame_cb(void *, fsl_annotate_opt const * const,
fsl_annotate_step const * const);
|
︙ | | |
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
|
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
|
-
-
+
+
-
+
-
+
-
-
+
|
static bool view_is_parent(struct fnc_view *);
static void view_set_child(struct fnc_view *, struct fnc_view *);
static int view_close_child(struct fnc_view *);
static int close_tree_view(struct fnc_view *);
static int close_timeline_view(struct fnc_view *);
static int close_diff_view(struct fnc_view *);
static void free_index(struct index *);
static void free_tags(struct fnc_tl_view_state *, bool);
static int view_resize(struct fnc_view *, enum view_mode);
static bool screen_is_split(struct fnc_view *);
static bool screen_is_shared(struct fnc_view *);
static void updatescreen(WINDOW *, bool, bool);
static void fnc_resizeterm(void);
static int join_tl_thread(struct fnc_tl_view_state *);
static void fnc_free_commits(struct commit_queue *);
static void fnc_commit_artifact_close(struct fnc_commit_artifact*);
static int fsl_file_artifact_free(void *, void *);
static void sigwinch_handler(int);
static void sigpipe_handler(int);
static void sigcont_handler(int);
static int draw_lineno(struct fnc_view *, int, int, attr_t);
static bool gotoline(struct fnc_view *, int *, int *);
static int strtonumcheck(long *, const char *, const int,
const int);
static int fnc_prompt_input(struct fnc_view *, struct input *);
static int fnc_date_to_mtime(double *, const char *, int);
static int cook_input(char *, int, WINDOW *);
static int sitrep(struct fnc_view *, const char *, int);
static void fnc_print_msg(struct fnc_view *, const char *, bool,
bool, bool);
static char *fnc_strsep (char **, const char *);
static bool fnc_str_has_upper(const char *);
static int fnc_make_sql_glob(char **, char **, const char *,
static int fnc_make_sql_glob(char **, char **, const char *, bool);
bool);
#ifdef __OpenBSD__
static int init_unveil(const char *, const char *, bool);
static int init_landlock(const char **, const int);
static const char *getdirname(const char *, fsl_int_t, bool);
#endif
static int set_colours(struct fnc_colours *, enum fnc_view_id);
static int set_colour_scheme(struct fnc_colours *,
const int (*)[2], const char **, int);
static int init_colour(enum fnc_opt_id);
static int default_colour(enum fnc_opt_id);
static void free_colours(struct fnc_colours *);
static bool fnc_home(struct fnc_view *);
|
︙ | | |
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
|
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
|
+
-
+
+
-
-
-
+
|
if (rc)
goto end;
}
rc = init_curses();
if (rc)
goto end;
#ifdef __OpenBSD__
rc = init_unveil(REPODB, CKOUTDIR, false);
rc = init_unveil(fsl_cx_db_file_repo(f, NULL),
fsl_cx_ckout_dir_name(f, NULL), false);
if (rc)
goto end;
rc = init_landlock((const char*[]){REPODIR, CKOUTDIR, P_tmpdir}, 3);
if (rc)
goto end;
#endif
rc = init_timeline_view(&v, 0, 0, rid, path, glob);
if (!rc)
rc = view_loop(v);
end:
fsl_free(glob);
fsl_free(path);
|
︙ | | |
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
|
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
|
-
+
|
*/
/* if (path[1]) { */
/* rc = fsl_compute_ancestors(db, rid, 0, 0); */
/* if (rc) */
/* return RC(FSL_RC_DB, "%s", "fsl_compute_ancestors"); */
/* } */
s->thread_cx.q = NULL;
/* s->selected = 0; */ /* Unnecessary? */
/* s->selected_idx = 0; */ /* Unnecessary? */
TAILQ_INIT(&s->commits.head);
s->commits.ncommits = 0;
if (rid)
startdate = fsl_mprintf("(SELECT mtime FROM event "
"WHERE objid=%d)", rid);
|
︙ | | |
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
|
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
|
-
-
+
|
goto end;
case FSL_RC_STEP_DONE:
rc = RC(FSL_RC_BREAK, "%s", "no matching records");
goto end;
}
s->colour = !fnc_init.nocolour && has_colors();
s->showmeta = true;
s->thread_cx.rc = 0;
s->thread_cx.db = db;
s->thread_cx.spin_idx = 0;
s->thread_cx.ncommits_needed = view->nlines - 1;
s->thread_cx.commits = &s->commits;
s->thread_cx.eotl = false;
s->thread_cx.quit = &s->quit;
s->thread_cx.first_commit_onscreen = &s->first_commit_onscreen;
s->thread_cx.selected_entry = &s->selected_entry;
s->thread_cx.selected_commit = &s->selected_commit;
s->thread_cx.searching = &view->searching;
s->thread_cx.search_status = &view->search_status;
s->thread_cx.regex = &view->regex;
s->thread_cx.path = s->path;
s->thread_cx.reset = true;
if (s->colour) {
|
︙ | | |
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
|
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
|
-
+
|
if ((rc = pthread_mutex_lock(&fnc_mutex))) {
rc = RC(fsl_errno_to_rc(rc, FSL_RC_ACCESS),
"%s", "pthread_mutex_lock");
break;
} else if (*cx->first_commit_onscreen == NULL) {
*cx->first_commit_onscreen =
TAILQ_FIRST(&cx->commits->head);
*cx->selected_entry = *cx->first_commit_onscreen;
*cx->selected_commit = *cx->first_commit_onscreen;
} else if (*cx->quit)
done = true;
if ((rc = pthread_cond_signal(&cx->commit_producer))) {
rc = RC(fsl_errno_to_rc(rc, FSL_RC_MISUSE),
"%s", "pthread_cond_signal");
pthread_mutex_unlock(&fnc_mutex);
|
︙ | | |
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
|
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
|
-
+
-
-
+
-
-
+
-
+
-
-
+
+
-
+
-
-
-
+
+
+
|
if (cx->eotl)
break;
if (view->mode == VIEW_SPLIT_HRZN)
cx->reset = true;
/* Wake timeline thread. */
rc = pthread_cond_signal(&cx->commit_consumer);
if ((rc = pthread_cond_signal(&cx->commit_consumer)))
if (rc)
return RC(fsl_errno_to_rc(rc, FSL_RC_MISUSE),
"%s", "pthread_cond_signal");
/*
* Mutex will be released while view_loop().view_input() waits
* in wgetch(), at which point the timeline thread will run.
*/
if (!wait)
break;
/* Show status update in timeline view. */
show_timeline_view(view);
update_panels();
doupdate();
/* Wait while the next commit is being loaded. */
rc = pthread_cond_wait(&cx->commit_producer, &fnc_mutex);
if ((rc = pthread_cond_wait(&cx->commit_producer, &fnc_mutex)))
if (rc)
return RC(fsl_errno_to_rc(rc, FSL_RC_ACCESS),
"%s", "pthread_cond_wait");
/* Show status update in timeline view. */
show_timeline_view(view);
update_panels();
doupdate();
}
return cx->rc;
}
static int
draw_commits(struct fnc_view *view)
{
struct fnc_tl_view_state *s = &view->state.timeline;
struct fnc_tl_thread_cx *tcx = &s->thread_cx;
struct commit_entry *entry = s->selected_entry;
struct commit_entry *entry = s->selected_commit;
struct fnc_colour *c = NULL;
const char *search_str = NULL;
char *headln = NULL, *idxstr = NULL;
char *branch = NULL, *type = NULL;
char *uuid = NULL;
wchar_t *wline;
wchar_t *wcstr;
attr_t rx = A_BOLD;
int ncommits = 0, rc = FSL_RC_OK, wlen = 0;
int ncols_needed, maxlen = -1;
int ncommits = 0, rc = 0, wstrlen = 0;
int ncols_needed, max_usrlen = -1;
if (s->selected_entry && !(view->searching != SEARCH_DONE &&
if (s->selected_commit && !(view->searching != SEARCH_DONE &&
view->search_status == SEARCH_WAITING)) {
uuid = fsl_strdup(s->selected_entry->commit->uuid);
branch = fsl_strdup(s->selected_entry->commit->branch);
type = fsl_strdup(s->selected_entry->commit->type);
uuid = fsl_strdup(s->selected_commit->commit->uuid);
branch = fsl_strdup(s->selected_commit->commit->branch);
type = fsl_strdup(s->selected_commit->commit->type);
}
if (tcx->ncommits_needed > 0 && !tcx->eotl) {
if ((idxstr = fsl_mprintf(" [%d/%d] %s",
entry ? entry->idx + 1 : 0, s->commits.ncommits,
(view->searching && !view->search_status) ?
"searching..." : "loading...")) == NULL) {
|
︙ | | |
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
|
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
|
-
+
-
-
+
+
-
+
-
+
-
+
-
+
-
-
-
-
+
+
+
+
+
-
+
-
-
-
+
+
-
|
== NULL) {
rc = RC(FSL_RC_RANGE, "%s", "fsl_mprintf");
headln = NULL;
goto end;
}
if (SPINNER[++tcx->spin_idx] == '\0')
tcx->spin_idx = 0;
rc = formatln(&wline, &wlen, headln, view->ncols, 0, false);
rc = formatln(&wcstr, &wstrlen, headln, view->ncols, 0, 0, false);
if (rc)
goto end;
werase(view->window);
if (screen_is_shared(view) || view->active)
rx |= A_REVERSE;
if (s->colour)
c = get_colour(&s->colours, FNC_COLOUR_COMMIT);
if (c)
rx |= COLOR_PAIR(c->scheme);
wattron(view->window, rx);
waddwstr(view->window, wline);
while (wlen < view->ncols) {
waddwstr(view->window, wcstr);
while (wstrlen < view->ncols) {
waddch(view->window, ' ');
++wlen;
++wstrlen;
}
wattroff(view->window, rx);
fsl_free(wline);
fsl_free(wcstr);
if (view->nlines <= 1)
goto end;
/* Parse commits to be written on screen for the longest username. */
entry = s->first_commit_onscreen;
while (entry) {
wchar_t *wstr;
wchar_t *usr_wcstr;
char *user;
int wusrlen;
int usrlen;
if (ncommits >= view->nlines - 1)
break;
user = fsl_strdup(entry->commit->user);
if (user == NULL) {
rc = RC(FSL_RC_ERROR, "%s", "fsl_strdup");
goto end;
}
if (strpbrk(user, "<@>") != NULL)
parse_emailaddr_username(&user);
rc = formatln(&wstr, &wusrlen, user, view->ncols, 0, false);
if (maxlen < wusrlen)
maxlen = wusrlen;
fsl_free(wstr);
rc = formatln(&usr_wcstr, &usrlen, user, view->ncols, 0, 0,
false);
if (max_usrlen < usrlen)
max_usrlen = usrlen;
fsl_free(usr_wcstr);
fsl_free(user);
++ncommits;
entry = TAILQ_NEXT(entry, entries);
}
ncommits = 0;
entry = s->first_commit_onscreen;
s->last_commit_onscreen = s->first_commit_onscreen;
while (entry) {
if (ncommits >= MIN(view->nlines - 1, view->lines - 1))
break;
if (ncommits == s->selected ||
if (ncommits == s->selected_idx)
entry->commit->rid == s->tagged.rid)
wattr_on(view->window, A_REVERSE, NULL);
rc = write_commit_line(view, entry->commit, maxlen);
if (ncommits == s->selected ||
rc = write_commit_line(view, entry->commit, max_usrlen);
if (ncommits == s->selected_idx)
entry->commit->rid == s->tagged.rid)
wattr_off(view->window, A_REVERSE, NULL);
++ncommits;
s->last_commit_onscreen = entry;
entry = TAILQ_NEXT(entry, entries);
}
drawborder(view);
|
︙ | | |
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
|
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
|
-
-
+
+
-
+
-
-
+
-
-
-
-
+
+
+
+
+
+
+
+
-
|
usr = *username;
usr[strcspn(usr, "@>")] = '\0';
*username = usr;
}
static int
formatln(wchar_t **ptr, int *wstrlen, const char *mbstr, size_t column_limit,
int start_column, bool expand)
formatln(wchar_t **ptr, int *wstrlen, const char *mbstr, int column_limit,
int start_column, size_t skip, bool expand)
{
wchar_t *wline = NULL;
char *exstr = NULL;
static char exstr[BUFSIZ];
size_t i, sz, wlen;
size_t cols = 0;
int rc = FSL_RC_OK;
int cols = 0, rc = FSL_RC_OK;
*ptr = NULL;
*wstrlen = 0;
sz = fsl_strlen(mbstr);
if (expand)
expand_tab(&exstr, mbstr, sz);
rc = multibyte_to_wchar(expand ? exstr : mbstr, &wline, &wlen);
if (expand) {
sz = expand_tab(exstr, sizeof(exstr), mbstr, sz);
mbstr = exstr;
}
if (skip)
skip = MIN(skip, sz);
rc = multibyte_to_wchar(mbstr + skip, &wline, &wlen);
fsl_free(exstr);
if (rc)
return rc;
if (wlen > 0 && wline[wlen - 1] == L'\n') {
wline[wlen - 1] = L'\0';
wlen--;
}
|
︙ | | |
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
|
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
|
-
+
-
-
-
+
+
-
-
-
-
+
-
-
+
+
-
|
/*
* Copy the string src into the statically sized dst char array, and expand
* any tab ('\t') characters found into the equivalent number of space (' ')
* characters. Return number of bytes written to dst minus the terminating NUL.
*/
static size_t
expand_tab(char **ptr, const char *src, int srclen)
expand_tab(char *dst, size_t dstlen, const char *src, int srclen)
{
char *dst;
size_t n = srclen, sz = 0;
int idx = 0;
size_t sz = 0;
int idx = 0;
*ptr = NULL;
dst = fsl_malloc((srclen + 1) * sizeof(char));
while (idx < srclen && src[idx]) {
while (sz < dstlen - 1 && idx < srclen && src[idx]) {
const char c = *(src + idx);
if (c == '\t') {
size_t spaces = TABSIZE - (sz % TABSIZE);
n += spaces;
dst = fsl_realloc(dst, n * sizeof(char));
if (spaces + sz >= dstlen - 1)
spaces = dstlen - sz - 1;
memcpy(dst + sz, " ", spaces);
sz += spaces;
} else {
dst[sz++] = src[idx];
}
++idx;
}
dst[sz] = '\0';
*ptr = dst;
return sz;
}
static int
multibyte_to_wchar(const char *src, wchar_t **dst, size_t *dstlen)
{
int rc = 0;
|
︙ | | |
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
|
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
|
-
+
-
+
-
-
+
+
-
+
-
+
-
+
-
-
+
+
-
-
+
+
-
+
-
-
+
-
-
+
+
-
-
+
+
+
-
-
-
+
+
+
-
+
-
+
+
|
* to limit commit comment summary lines to a maximum 50 characters, and most
* plaintext-based conventions suggest not exceeding 72-80 characters.
*
* When < 110 columns, the (abbreviated 9-character) UUID will be elided.
*/
static int
write_commit_line(struct fnc_view *view, struct fnc_commit_artifact *commit,
int maxlen)
int max_usrlen)
{
struct fnc_tl_view_state *s = &view->state.timeline;
struct fnc_colour *c = NULL;
wchar_t *wstr = NULL;
wchar_t *usr_wcstr = NULL, *wcomment = NULL;
char *comment0 = NULL, *comment = NULL;
char *date = NULL;
char *eol = NULL, *pad = NULL, *user = NULL;
size_t i = 0;
int col, limit, wlen;
int rc = FSL_RC_OK;
int col_pos, ncols_avail, usrlen;
int commentlen, rc = 0;
/* Trim time component from timestamp for the date field. */
date = fsl_strdup(commit->timestamp);
while (!fsl_isspace(date[i++])) {}
date[i] = '\0';
col = MIN(view->ncols, ISO8601_DATE_ONLY + 1);
col_pos = MIN(view->ncols, ISO8601_DATE_ONLY + 1);
if (s->colour)
c = get_colour(&s->colours, FNC_COLOUR_DATE);
if (c)
wattr_on(view->window, COLOR_PAIR(c->scheme), NULL);
waddnstr(view->window, date, col);
waddnstr(view->window, date, col_pos);
if (c)
wattr_off(view->window, COLOR_PAIR(c->scheme), NULL);
if (col > view->ncols)
if (col_pos > view->ncols)
goto end;
/* If enough columns, write abbreviated commit hash. */
if (view->ncols >= 110) {
if (s->colour)
c = get_colour(&s->colours, FNC_COLOUR_COMMIT);
if (c)
wattr_on(view->window, COLOR_PAIR(c->scheme), NULL);
wprintw(view->window, "%.9s ", commit->uuid);
if (c)
wattr_off(view->window, COLOR_PAIR(c->scheme), NULL);
col += 10;
if (col > view->ncols)
col_pos += 10;
if (col_pos > view->ncols)
goto end;
}
/*
* Parse username from emailaddr if needed, and postfix username
* with as much whitespace as needed to fill two spaces beyond
* the longest username on the screen.
*/
user = fsl_strdup(commit->user);
if (user == NULL)
goto end;
if (strpbrk(user, "<@>") != NULL)
parse_emailaddr_username(&user);
rc = formatln(&wstr, &wlen, user, view->ncols - col,
col, false);
rc = formatln(&usr_wcstr, &usrlen, user, view->ncols - col_pos,
col_pos, 0, false);
if (rc)
goto end;
if (s->colour)
c = get_colour(&s->colours, FNC_COLOUR_USER);
if (c)
wattr_on(view->window, COLOR_PAIR(c->scheme), NULL);
waddwstr(view->window, wstr);
waddwstr(view->window, usr_wcstr);
fsl_free(wstr);
pad = fsl_mprintf("%*c", maxlen - wlen + 2, ' ');
pad = fsl_mprintf("%*c", max_usrlen - usrlen + 2, ' ');
waddstr(view->window, pad);
if (c)
wattr_off(view->window, COLOR_PAIR(c->scheme), NULL);
col += (maxlen + 2);
if (col > view->ncols)
col_pos += (max_usrlen + 2);
if (col_pos > view->ncols)
goto end;
/* Only show comment up to the first newline character. */
comment0 = fsl_strdup(commit->comment);
comment = comment0;
if (comment == NULL)
return RC(FSL_RC_ERROR, "%s", "fsl_strdup");
while (*comment == '\n')
++comment;
eol = strchr(comment, '\n');
if (eol)
*eol = '\0';
limit = view->ncols - col;
rc = formatln(&wstr, &wlen, comment, limit, col, false);
ncols_avail = view->ncols - col_pos;
rc = formatln(&wcomment, &commentlen, comment, ncols_avail, col_pos, 0,
false);
if (rc)
goto end;
waddwstr(view->window, wstr);
col += wlen;
while (col < view->ncols) {
waddwstr(view->window, wcomment);
col_pos += commentlen;
while (col_pos < view->ncols) {
waddch(view->window, ' ');
++col;
++col_pos;
}
end:
fsl_free(date);
fsl_free(user);
fsl_free(wstr);
fsl_free(usr_wcstr);
fsl_free(pad);
fsl_free(comment0);
fsl_free(wcomment);
return rc;
}
static int
view_input(struct fnc_view **new, int *done, struct fnc_view *view,
struct view_tailhead *views)
{
|
︙ | | |
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
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3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
|
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
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3054
3055
3056
3057
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3059
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3061
3062
3063
3064
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3072
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3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
|
-
+
-
-
-
-
-
-
+
|
{" N ", " ❬N❭ "},
{" q ", " ❬q❭ "},
{" Q ", " ❬Q❭ "},
{""},
{""}, /* Timeline */
{" <,, ", " ❬<❭❬,❭ "},
{" >,. ", " ❬>❭❬.❭ "},
{" Enter ", " ❬Enter❭ "},
{" Enter,Space ", " ❬Enter❭❬Space❭ "},
{" Space ", " ❬Space❭ "},
{" b ", " ❬b❭ "},
{" C ", " ❬C❭ "},
{" F ", " ❬F❭ "},
{" t ", " ❬t❭ "},
{""},
{""}, /* Diff */
{" Space ", " ❬Space❭ "},
{" # ", " ❬#❭ "},
{" @ ", " ❬@❭ "},
{" $ ", " ❬$❭ "},
{" 0 ", " ❬0❭ "},
{" C-e ", " ❬C-e❭ "},
{" C-y ", " ❬C-y❭ "},
{" C-n ", " ❬C-n❭ "},
{" C-p ", " ❬C-p❭ "},
{" l<Right> ", " ❬l❭❬→❭ "},
{" h<Left> ", " ❬h❭❬←❭ "},
{" b ", " ❬b❭ "},
{" F ", " ❬F❭ "},
{" i ", " ❬i❭ "},
{" L ", " ❬L❭ "},
{" p ", " ❬p❭ "},
{" S ", " ❬S❭ "},
{" v ", " ❬v❭ "},
{" w ", " ❬w❭ "},
{" -,_ ", " ❬-❭❬_❭ "},
{" +,= ", " ❬+❭❬=❭ "},
{" C-k,K,<,, ", " ❬C-k❭❬K❭❬<❭❬,❭ "},
{" C-j,J,>,. ", " ❬C-j❭❬J❭❬>❭❬.❭ "},
{""},
{""}, /* Tree */
{" l,Enter,<Right> ", " ❬→❭❬l❭❬Enter❭ "},
{" h,<BS>,<Left> ", " ❬←❭❬h❭❬⌫❭ "},
{" b ", " ❬b❭ "},
{" d ", " ❬d❭ "},
{" i ", " ❬i❭ "},
{" t ", " ❬t❭ "},
{""},
{""}, /* Blame */
{" Space ", " ❬Space❭ "},
{" Enter ", " ❬Enter❭ "},
{" # ", " ❬#❭ "},
{" @ ", " ❬@❭ "},
{" $ ", " ❬$❭ "},
{" 0 ", " ❬0❭ "},
{" l<Right> ", " ❬l❭❬→❭ "},
{" h<Left> ", " ❬h❭❬←❭ "},
{" L ", " ❬L❭ "},
{" b ", " ❬b❭ "},
{" p ", " ❬p❭ "},
{" B ", " ❬B❭ "},
{" T ", " ❬T❭ "},
{""},
{""}, /* Branch */
{" Enter,Space ", " ❬Enter❭❬Space❭ "},
|
︙ | | |
3172
3173
3174
3175
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3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
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3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
|
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
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3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
|
-
-
-
-
+
-
-
-
+
|
"Quit the active view",
"Quit the program",
"",
"Timeline",
"Move selection cursor up one commit",
"Move selection cursor down one commit",
"Open diff view of the selected commit",
"(Un)tag (or diff) the selected (against the tagged) commit",
"Open and populate branch view with all repository branches",
"Diff local changes in the checkout against selected commit",
"Open prompt to enter term with which to filter new timeline view",
"Display a tree reflecting the state of the selected commit",
"",
"Diff",
"Scroll down one page of diff output",
"Toggle display of diff view line numbers",
"Open prompt to enter line number and navigate to line",
"Scroll the view right to the end of the longest line",
"Scroll the view left to the beginning of the line",
"Scroll the view down in the buffer",
"Scroll the view up in the buffer",
"Navigate to next file in the diff",
"Navigate to previous file in the diff",
"Scroll the view right",
"Scroll the view left",
"Open and populate branch view with all repository branches",
"Open prompt to enter file number and navigate to file",
"Toggle inversion of diff output",
"Toggle display of file line numbers",
"Open prompt to enter line number and navigate to line",
"Toggle display of function name in chunk header",
"Display side-by-side formatted diff",
"Toggle verbosity of diff output",
"Toggle ignore whitespace-only changes in diff",
"Decrease the number of context lines",
"Increase the number of context lines",
"Display diff of next (newer) commit in the timeline",
"Display diff of previous (older) commit in the timeline",
"",
"Tree",
"Move into the selected directory",
"Return to the parent directory",
"Open and populate branch view with all repository branches",
"Toggle ISO8601 modified timestamp display for each tree entry",
"Toggle display of file artifact SHA hash ID",
"Display timeline of all commits modifying the selected entry",
"",
"Blame",
"Scroll down one page",
"Display the diff of the commit corresponding to the selected line",
"Toggle display of file line numbers",
"Open prompt to enter line number and navigate to line",
"Scroll the view right to the end of the longest line",
"Scroll the view left to the beginning of the line",
"Scroll the view right",
"Scroll the view left",
"Open prompt to enter line number and navigate to line",
"Blame the version of the file found in the selected line's commit",
"Blame the version of the file found in the selected line's parent "
"commit",
"Reload the previous blamed version of the file",
"Open and populate branch view with all repository branches",
"",
"Branch",
|
︙ | | |
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3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
|
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3354
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3356
|
-
-
|
static int
tl_input_handler(struct fnc_view **new_view, struct fnc_view *view, int ch)
{
struct fnc_tl_view_state *s = &view->state.timeline;
int rc = FSL_RC_OK;
uint16_t nscroll = view->nlines - 2;
free_tags(s, true);
switch (ch) {
case KEY_DOWN:
case 'j':
case '.':
case '>':
rc = move_tl_cursor_down(view, 0);
break;
|
︙ | | |
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3622
3623
3624
3625
3626
3627
3628
3629
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3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
3646
3647
3648
3649
3650
|
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
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3401
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3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
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3430
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3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
|
-
-
-
-
+
+
+
+
-
+
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+
-
-
+
+
+
+
-
+
-
-
-
-
+
+
+
+
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+
-
+
-
+
-
-
+
+
-
+
-
+
-
+
-
+
-
+
-
-
+
+
|
if (!fnc_home(view))
break;
/* FALL THROUGH */
case KEY_HOME:
move_tl_cursor_up(view, false, true);
break;
case KEY_RESIZE:
if (s->selected > view->nlines - 2)
s->selected = view->nlines - 2;
if (s->selected > s->commits.ncommits - 1)
s->selected = s->commits.ncommits - 1;
if (s->selected_idx > view->nlines - 2)
s->selected_idx = view->nlines - 2;
if (s->selected_idx > s->commits.ncommits - 1)
s->selected_idx = s->commits.ncommits - 1;
select_commit(s);
if (s->commits.ncommits < view->nlines - 1 &&
!s->thread_cx.eotl) {
s->thread_cx.ncommits_needed += (view->nlines - 1) -
s->commits.ncommits;
rc = signal_tl_thread(view, 1);
}
break;
case 'C': {
case KEY_ENTER:
fsl_cx *const f = fcli_cx();
/*
* XXX This is not good but I can't think of an alternative
* without patching libf: fsl_ckout_changes_scan() returns a
* db lock error via fsl_vfile_changes_scan() when versioned
* files are modified in-session. Clear it and notify user.
*/
rc = fsl_ckout_changes_scan(f);
if (rc == FSL_RC_DB) {
rc = sitrep(view, "-- checkout db busy --",
SR_CLREOL | SR_UPDATE | SR_SLEEP | SR_RESET);
break;
} else if (rc)
return RC(rc, "%s", "fsl_ckout_changes_scan");
if (!fsl_ckout_has_changes(f)) {
sitrep(view, "-- no local changes --",
SR_CLREOL | SR_UPDATE | SR_SLEEP);
break;
}
s->selected_entry->commit->diff_type = FNC_DIFF_CKOUT;
} /* FALL THROUGH */
case ' ':
if (!tagged_commit(s))
break;
/* FALL THROUGH */
case KEY_ENTER:
case '\r':
rc = request_view(new_view, view, FNC_VIEW_DIFF);
break;
case 'b':
rc = request_view(new_view, view, FNC_VIEW_BRANCH);
break;
case 'c':
s->colour = !s->colour;
break;
case 'F': {
struct input input = {NULL, "filter: ", INPUT_ALPHA, SR_CLREOL};
struct input input = {NULL, "filter: ", INPUT_ALPHA, true};
rc = fnc_prompt_input(view, &input);
if (rc)
return rc;
s->glob = input.buf;
rc = request_view(new_view, view, FNC_VIEW_TIMELINE);
if (rc == FSL_RC_BREAK) {
rc = sitrep(view, "-- no matching commits --",
SR_CLREOL | SR_UPDATE | SR_SLEEP | SR_RESET);
fnc_print_msg(view, "-- no matching commits --",
true, true, true);
fcli_err_reset();
rc = FSL_RC_OK;
}
break;
}
case 't':
if (s->selected_entry == NULL)
if (s->selected_commit == NULL)
break;
if (!fsl_rid_is_a_checkin(fcli_cx(),
s->selected_entry->commit->rid))
sitrep(view,
"-- tree requires check-in artifact --",
SR_CLREOL | SR_UPDATE | SR_SLEEP);
s->selected_commit->commit->rid))
fnc_print_msg(view,
"-- tree requires check-in artifact --", true,
true, true);
else
rc = request_view(new_view, view, FNC_VIEW_TREE);
break;
case 'q':
s->quit = 1;
break;
default:
break;
}
return rc;
}
static bool
tagged_commit(struct fnc_tl_view_state *s)
{
/* If a commit is not already tagged, tag the selected commit. */
if (!s->tagged.rid) {
/* Only tag checkin and wiki commits */
if (strcmp(s->selected_entry->commit->type, "checkin") &&
strcmp(s->selected_entry->commit->type, "wiki"))
return false;
s->tagged.rid = s->selected_entry->commit->rid;
s->tagged.id = fsl_strdup(s->selected_entry->commit->uuid);
s->tagged.type = fsl_strdup(s->selected_entry->commit->type);
if (s->selected_entry->commit->diff_type != FNC_DIFF_CKOUT)
return false;
} else if (fsl_strcmp(s->selected_entry->commit->type, s->tagged.type))
return false; /* Can't diff different types */
else if (s->selected_entry->commit->rid == s->tagged.rid) {
/* Untag currently tagged commit. */
fsl_free(s->tagged.id);
s->tagged.id = NULL;
fsl_free(s->tagged.type);
s->tagged.type = NULL;
s->tagged.rid = 0;
return false;
}
/* A commit is tagged, diff selected commit against it. */
if (s->selected_entry->commit->prid != s->tagged.rid)
s->showmeta = false;
s->tagged.ogid = fsl_strdup(s->selected_entry->commit->puuid);
s->tagged.ogrid = s->selected_entry->commit->prid;
fsl_free(s->selected_entry->commit->puuid);
s->selected_entry->commit->puuid = fsl_strdup(s->tagged.id);
s->selected_entry->commit->prid = s->tagged.rid;
s->tagged.rid = 0; /* Don't continue highlighting tagged commit. */
return true;
}
static int
move_tl_cursor_down(struct fnc_view *view, uint16_t page)
{
struct fnc_tl_view_state *s = &view->state.timeline;
struct commit_entry *first;
int rc = FSL_RC_OK;
first = s->first_commit_onscreen;
if (first == NULL)
return rc;
if (s->thread_cx.eotl &&
s->selected_entry->idx >= s->commits.ncommits - 1)
s->selected_commit->idx >= s->commits.ncommits - 1)
return rc; /* Last commit already selected. */
if (!page) {
/* Still more commits on this page to scroll down. */
if (s->selected < MIN(view->nlines - 2,
if (s->selected_idx < MIN(view->nlines - 2,
s->commits.ncommits - 1))
++s->selected;
++s->selected_idx;
else /* Last commit on screen is selected, need to scroll. */
rc = timeline_scroll_down(view, 1);
} else if (s->thread_cx.eotl) {
/* Last displayed commit is the end, jump to it. */
if (s->last_commit_onscreen->idx == s->commits.ncommits - 1)
s->selected += MIN(s->last_commit_onscreen->idx -
s->selected_entry->idx, page + 1);
s->selected_idx += MIN(s->last_commit_onscreen->idx -
s->selected_commit->idx, page + 1);
else /* Scroll the page. */
rc = timeline_scroll_down(view, MIN(page,
s->commits.ncommits - s->selected_entry->idx - 1));
s->commits.ncommits - s->selected_commit->idx - 1));
} else {
rc = timeline_scroll_down(view, page);
if (rc)
return rc;
if (first == s->first_commit_onscreen && s->selected <
if (first == s->first_commit_onscreen && s->selected_idx <
MIN(view->nlines - 2, s->commits.ncommits - 1)) {
/* End of timeline, no more commits; move cursor down */
s->selected = MIN(s->commits.ncommits - 1, page);
s->selected_idx = MIN(s->commits.ncommits - 1, page);
}
/*
* If we've overshot (necessarily possible with horizontal
* splits), select the final commit.
*/
s->selected = MIN(s->selected,
s->selected_idx = MIN(s->selected_idx,
s->last_commit_onscreen->idx -
s->first_commit_onscreen->idx);
}
if (!rc)
select_commit(s);
return rc;
}
static void
move_tl_cursor_up(struct fnc_view *view, uint16_t page, bool home)
{
struct fnc_tl_view_state *s = &view->state.timeline;
if (s->first_commit_onscreen == NULL)
return;
if ((page && TAILQ_FIRST(&s->commits.head) == s->first_commit_onscreen)
|| home)
s->selected = home ? 0 : MAX(0, s->selected - page - 1);
s->selected_idx = home ? 0 : MAX(0, s->selected_idx - page - 1);
if (!page && !home && s->selected > 0)
--s->selected;
if (!page && !home && s->selected_idx > 0)
--s->selected_idx;
else
timeline_scroll_up(s, home ?
s->commits.ncommits : MAX(page, 1));
select_commit(s);
return;
}
|
︙ | | |
3696
3697
3698
3699
3700
3701
3702
3703
3704
3705
3706
3707
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
3733
3734
3735
|
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
3602
3603
3604
3605
3606
3607
3608
|
-
+
-
-
+
+
-
+
-
+
|
enum fnc_view_id request, int x, int y)
{
int rc = FSL_RC_OK;
switch (request) {
case FNC_VIEW_DIFF: {
struct fnc_tl_view_state *s = &view->state.timeline;
if (s->selected_entry == NULL)
if (s->selected_commit == NULL)
break;
rc = init_diff_view(new_view, x, y, s->selected_entry->commit,
view, s->showmeta);
rc = init_diff_view(new_view, x, y, s->selected_commit->commit,
view);
break;
}
case FNC_VIEW_BLAME: {
struct fnc_tree_view_state *s = &view->state.tree;
rc = blame_tree_entry(new_view, x, y, s->selected_entry,
&s->parents, s->commit_id);
break;
}
case FNC_VIEW_TIMELINE: {
const char *glob = NULL;
int rid = 0;
if (view->vid == FNC_VIEW_TIMELINE)
glob = view->state.timeline.glob;
else if (view->vid == FNC_VIEW_BRANCH)
rid = fsl_uuid_to_rid(fcli_cx(),
view->state.branch.selected_entry->branch->id);
view->state.branch.selected_branch->branch->id);
rc = init_timeline_view(new_view, x, y, rid, "/", glob);
break;
}
case FNC_VIEW_TREE: {
struct fnc_tl_view_state *s = &view->state.timeline;
rc = browse_commit_tree(new_view, x, y, s->selected_entry,
rc = browse_commit_tree(new_view, x, y, s->selected_commit,
s->path);
break;
}
case FNC_VIEW_BRANCH: {
*new_view = view_open(0, 0, y, x, FNC_VIEW_BRANCH);
if (*new_view == NULL)
return RC(FSL_RC_ERROR, "%s", "view_open");
|
︙ | | |
3749
3750
3751
3752
3753
3754
3755
3756
3757
3758
3759
3760
3761
3762
3763
3764
3765
3766
3767
3768
3769
3770
3771
3772
3773
3774
3775
3776
|
3622
3623
3624
3625
3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
3646
3647
3648
|
-
-
+
+
-
|
* or set to auto, determine vertical or horizontal split depending on screen
* estate. If set to 'v' or 'h', assign start column or start line of the split
* view to *start_col and *start_ln, respectively, and return split mode.
*/
static enum view_mode
view_get_split(struct fnc_view *view, int *start_col, int *start_ln)
{
char *mode = fnc_conf_getopt(FNC_VIEW_SPLIT_MODE, false);
enum view_mode vm;
char *mode = fnc_conf_getopt(FNC_VIEW_SPLIT_MODE, false);
enum view_mode vm;
if (!mode || mode[0] != 'h') {
vm = VIEW_SPLIT_VERT;
*start_col = view_split_start_col(view->start_col);
}
if (!*start_col && (!mode || mode[0] != 'v')) {
vm = VIEW_SPLIT_HRZN;
*start_ln = view_split_start_ln(view->lines);
}
fsl_free(mode);
return vm;
}
/* Split view horizontally at *start_ln and offset view->state->selected line */
static int
split_view(struct fnc_view *view, int *start_ln)
{
|
︙ | | |
3799
3800
3801
3802
3803
3804
3805
3806
3807
3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
|
3671
3672
3673
3674
3675
3676
3677
3678
3679
3680
3681
3682
3683
3684
3685
3686
3687
3688
3689
3690
3691
3692
|
-
+
-
+
|
int *selected;
switch (view->vid) {
case FNC_VIEW_TIMELINE: {
struct fnc_tl_view_state *s = &view->state.timeline;
scrolld = &timeline_scroll_down;
header = 2;
selected = &s->selected;
selected = &s->selected_idx;
break;
}
case FNC_VIEW_TREE: {
struct fnc_tree_view_state *s = &view->state.tree;
scrolld = &tree_scroll_down;
header = 4;
selected = &s->selected;
selected = &s->selected_idx;
break;
}
case FNC_VIEW_BRANCH: {
struct fnc_branch_view_state *s = &view->state.branch;
scrolld = &branch_scroll_down;
header = 1;
selected = &s->selected;
|
︙ | | |
3900
3901
3902
3903
3904
3905
3906
3907
3908
3909
3910
3911
3912
3913
3914
3915
|
3772
3773
3774
3775
3776
3777
3778
3779
3780
3781
3782
3783
3784
3785
3786
3787
|
-
-
+
+
|
select_commit(struct fnc_tl_view_state *s)
{
struct commit_entry *entry;
int ncommits = 0;
entry = s->first_commit_onscreen;
while (entry) {
if (ncommits == s->selected) {
s->selected_entry = entry;
if (ncommits == s->selected_idx) {
s->selected_commit = entry;
break;
}
entry = TAILQ_NEXT(entry, entries);
++ncommits;
}
}
|
︙ | | |
4006
4007
4008
4009
4010
4011
4012
4013
4014
4015
4016
4017
4018
4019
4020
|
3878
3879
3880
3881
3882
3883
3884
3885
3886
3887
3888
3889
3890
3891
3892
|
-
+
|
fsl_free(height);
return !rc && n && n < (lines - 2) ? lines - n : lines * HSPLIT_SCALE;
}
static int
view_search_start(struct fnc_view *view)
{
struct input input = {NULL, "/", INPUT_ALPHA, SR_CLREOL};
struct input input = {NULL, "/", INPUT_ALPHA, true};
int rc = FSL_RC_OK;
if (view->started_search) {
regfree(&view->regex);
view->searching = SEARCH_DONE;
memset(&view->regmatch, 0, sizeof(view->regmatch));
}
|
︙ | | |
4140
4141
4142
4143
4144
4145
4146
4147
4148
4149
4150
4151
4152
4153
4154
|
4012
4013
4014
4015
4016
4017
4018
4019
4020
4021
4022
4023
4024
4025
4026
|
-
+
|
if (view->searching == SEARCH_FORWARD)
entry = TAILQ_NEXT(entry, entries);
else
entry = TAILQ_PREV(entry, commit_tailhead, entries);
}
if (s->matched_commit) {
int cur = s->selected_entry->idx;
int cur = s->selected_commit->idx;
while (cur < s->matched_commit->idx) {
if ((rc = tl_input_handler(NULL, view, KEY_DOWN)))
return rc;
++cur;
}
while (cur > s->matched_commit->idx) {
if ((rc = tl_input_handler(NULL, view, KEY_UP)))
|
︙ | | |
4181
4182
4183
4184
4185
4186
4187
4188
4189
4190
4191
4192
4193
4194
4195
4196
4197
4198
4199
4200
4201
4202
4203
4204
4205
4206
4207
4208
4209
4210
4211
4212
4213
4214
4215
4216
4217
4218
4219
4220
4221
|
4053
4054
4055
4056
4057
4058
4059
4060
4061
4062
4063
4064
4065
4066
4067
4068
4069
4070
4071
4072
4073
4074
4075
4076
4077
4078
4079
4080
4081
4082
4083
4084
4085
4086
4087
4088
4089
4090
4091
|
-
-
-
+
|
static int
view_close(struct fnc_view *view)
{
int rc = FSL_RC_OK;
if (view->child) {
regfree(&view->child->regex);
view_close(view->child);
view->child = NULL;
}
regfree(&view->regex);
if (view->close)
rc = view->close(view);
if (view->panel)
del_panel(view->panel);
if (view->window)
delwin(view->window);
fsl_free(view);
return rc;
}
static int
close_timeline_view(struct fnc_view *view)
{
struct fnc_tl_view_state *s = &view->state.timeline;
int rc = 0;
rc = join_tl_thread(s);
fsl_stmt_finalize(s->thread_cx.q);
free_tags(s, true); /* Must be before fnc_free_commits() */
fnc_free_commits(&s->commits);
free_colours(&s->colours);
regfree(&view->regex);
fsl_free(s->path);
s->path = NULL;
return rc;
}
/* static void */
|
︙ | | |
4282
4283
4284
4285
4286
4287
4288
4289
4290
4291
4292
4293
4294
4295
4296
4297
4298
4299
4300
4301
4302
4303
4304
4305
4306
4307
4308
4309
4310
4311
4312
4313
4314
4315
4316
4317
4318
4319
4320
4321
4322
4323
4324
4325
4326
4327
4328
4329
4330
4331
4332
4333
4334
4335
4336
4337
4338
4339
4340
4341
4342
4343
4344
4345
4346
4347
4348
4349
4350
4351
4352
4353
4354
4355
4356
4357
4358
4359
4360
4361
4362
4363
4364
4365
4366
4367
4368
4369
4370
4371
4372
4373
4374
4375
4376
4377
4378
4379
4380
4381
4382
4383
4384
4385
4386
4387
4388
4389
4390
4391
4392
4393
4394
4395
4396
4397
4398
4399
|
4152
4153
4154
4155
4156
4157
4158
4159
4160
4161
4162
4163
4164
4165
4166
4167
4168
4169
4170
4171
4172
4173
4174
4175
4176
4177
4178
4179
4180
4181
4182
4183
4184
4185
4186
4187
4188
4189
4190
4191
4192
4193
4194
4195
4196
4197
4198
4199
4200
4201
4202
4203
4204
4205
4206
4207
4208
4209
4210
4211
4212
4213
4214
4215
4216
4217
4218
4219
4220
4221
4222
4223
4224
4225
4226
4227
4228
4229
4230
4231
4232
4233
4234
4235
4236
4237
4238
4239
4240
4241
4242
4243
4244
4245
4246
4247
4248
4249
4250
4251
4252
4253
4254
4255
4256
4257
4258
4259
4260
|
-
-
-
-
+
-
-
-
+
+
-
-
-
+
+
+
-
+
-
-
-
-
-
+
+
+
-
-
-
|
--commits->ncommits;
}
}
static void
fnc_commit_artifact_close(struct fnc_commit_artifact *commit)
{
if (!commit)
return;
if (commit->branch)
fsl_free(commit->branch);
if (commit->comment)
fsl_free(commit->comment);
if (commit->timestamp)
fsl_free(commit->timestamp);
if (commit->type)
fsl_free(commit->type);
if (commit->user)
fsl_free(commit->user);
fsl_free(commit->uuid);
fsl_free(commit->puuid);
fsl_list_clear(&commit->changeset, fsl_file_artifact_free, NULL);
fsl_list_reserve(&commit->changeset, 0);
fsl_free(commit);
commit = NULL;
}
static int
fsl_file_artifact_free(void *elem, void *state)
{
struct fsl_file_artifact *ffa = elem;
fsl_free(ffa->fc->name);
fsl_free(ffa->fc->uuid);
fsl_free(ffa->fc->priorName);
fsl_free(ffa->fc);
fsl_free(ffa);
return 0;
}
static int
init_diff_view(struct fnc_view **new_view, int start_col, int start_ln,
struct fnc_commit_artifact *commit, struct fnc_view *timeline_view,
struct fnc_commit_artifact *commit, struct fnc_view *timeline_view)
bool showmeta)
{
struct fnc_view *diff_view;
int rc = 0;
diff_view = view_open(0, 0, start_ln, start_col, FNC_VIEW_DIFF);
if (diff_view == NULL)
return RC(FSL_RC_ERROR, "%s", "view_open");
rc = open_diff_view(diff_view, commit, DEF_DIFF_CTX, fnc_init.sbs,
fnc_init.ws, fnc_init.invert, !fnc_init.quiet, fnc_init.showln,
rc = open_diff_view(diff_view, commit, DEF_DIFF_CTX, fnc_init.ws,
fnc_init.invert, !fnc_init.quiet, timeline_view, true, NULL);
timeline_view, showmeta, NULL);
if (!rc)
*new_view = diff_view;
return rc;
}
static int
open_diff_view(struct fnc_view *view, struct fnc_commit_artifact *commit,
int context, bool sbs, bool ignore_ws, bool invert, bool verbosity,
bool showln, struct fnc_view *timeline_view, bool showmeta,
int context, bool ignore_ws, bool invert, bool verbosity,
struct fnc_view *timeline_view, bool showmeta,
struct fnc_pathlist_head *paths)
{
struct fnc_diff_view_state *s = &view->state.diff;
char *opt;
int rc = 0;
opt = fnc_conf_getopt(FNC_COLOUR_HL_LINE, false);
if (!fsl_stricmp(opt, "mono"))
s->sline = SLINE_MONO;
fsl_free(opt);
s->index.n = 0;
s->index.idx = 0;
s->maxx = 0;
s->paths = paths;
s->selected_entry = commit;
s->selected_commit = commit;
s->first_line_onscreen = 1;
s->last_line_onscreen = view->nlines;
s->selected_line = 1;
s->f = NULL;
s->context = context;
s->sbs = 0;
FLAG_SET(s->diff_flags, FNC_DIFF_PROTOTYPE);
sbs ? FLAG_SET(s->diff_flags, FNC_DIFF_SIDEBYSIDE) : 0;
verbosity ? FLAG_SET(s->diff_flags, FNC_DIFF_VERBOSE) : 0;
ignore_ws ? FLAG_SET(s->diff_flags, FNC_DIFF_IGNORE_ALLWS) : 0;
invert ? FLAG_SET(s->diff_flags, FNC_DIFF_INVERT) : 0;
verbosity ? FLAG_SET(s->diff_flags, FSL_DIFF_VERBOSE) : 0;
ignore_ws ? FLAG_SET(s->diff_flags, FSL_DIFF2_IGNORE_ALLWS) : 0;
invert ? FLAG_SET(s->diff_flags, FSL_DIFF2_INVERT) : 0;
showln ? FLAG_SET(s->diff_flags, FNC_DIFF_LINENO) : 0;
s->timeline_view = timeline_view;
s->colour = !fnc_init.nocolour && has_colors();
s->showmeta = showmeta;
if (s->colour) {
STAILQ_INIT(&s->colours);
rc = set_colours(&s->colours, FNC_VIEW_DIFF);
if (rc)
return rc;
}
if (timeline_view && screen_is_split(view))
show_timeline_view(timeline_view); /* draw vborder */
show_diff_status(view);
s->line_offsets = NULL;
s->nlines = 0;
s->dlines = NULL;
s->ndlines = 0;
s->ncols = view->ncols;
rc = create_diff(s);
if (rc) {
if (s->colour)
free_colours(&s->colours);
return rc;
}
|
︙ | | |
4415
4416
4417
4418
4419
4420
4421
4422
4423
4424
4425
4426
4427
4428
4429
4430
4431
4432
4433
4434
4435
4436
4437
4438
4439
4440
4441
4442
4443
4444
4445
4446
4447
4448
4449
4450
4451
4452
4453
4454
4455
4456
4457
4458
4459
4460
4461
4462
4463
4464
4465
4466
4467
4468
4469
4470
4471
4472
4473
4474
4475
4476
4477
4478
4479
4480
4481
4482
4483
4484
4485
4486
4487
4488
4489
4490
4491
4492
4493
4494
4495
4496
4497
4498
4499
4500
4501
4502
4503
4504
4505
4506
4507
4508
4509
4510
4511
4512
4513
4514
4515
4516
4517
4518
4519
4520
4521
4522
4523
4524
4525
4526
4527
4528
4529
4530
4531
4532
4533
4534
|
4276
4277
4278
4279
4280
4281
4282
4283
4284
4285
4286
4287
4288
4289
4290
4291
4292
4293
4294
4295
4296
4297
4298
4299
4300
4301
4302
4303
4304
4305
4306
4307
4308
4309
4310
4311
4312
4313
4314
4315
4316
4317
4318
4319
4320
4321
4322
4323
4324
4325
4326
4327
4328
4329
4330
4331
4332
4333
4334
4335
4336
4337
4338
4339
4340
4341
4342
4343
4344
4345
4346
4347
4348
4349
4350
4351
4352
4353
4354
4355
4356
4357
4358
4359
4360
4361
4362
4363
4364
4365
4366
4367
4368
4369
4370
4371
4372
4373
4374
4375
4376
4377
4378
4379
4380
4381
4382
4383
|
-
+
-
-
-
-
-
-
-
-
-
-
-
-
+
-
-
-
-
+
+
+
-
-
-
-
+
+
+
-
+
-
+
-
+
-
+
+
-
+
-
-
+
-
-
+
+
+
-
+
-
+
-
+
-
+
-
+
-
-
+
+
|
}
static int
create_diff(struct fnc_diff_view_state *s)
{
FILE *fout = NULL;
char *line, *st0 = NULL, *st = NULL;
off_t off = 0;
off_t lnoff = 0;
uint32_t idx = 0;
int rc = 0;
s->maxx = 0;
free(s->dlines);
s->dlines = fsl_malloc(sizeof(enum line_type *));
if (s->dlines == NULL)
return RC(FSL_RC_ERROR, "%s", "fsl_malloc");
s->ndlines = 0;
free(s->line_offsets);
s->line_offsets = fsl_malloc(sizeof(off_t));
if (s->line_offsets == NULL)
return RC(FSL_RC_ERROR, "%s", "fsl_malloc");
s->nlines = 0;
fout = tmpfile();
if (fout == NULL) {
rc = RC(fsl_errno_to_rc(errno, FSL_RC_IO), "%s", "tmpfile");
goto end;
}
if (s->f && fclose(s->f) == EOF) {
rc = RC(fsl_errno_to_rc(errno, FSL_RC_IO), "%s", "fclose");
goto end;
}
s->f = fout;
rc = add_line_offset(&s->line_offsets, &s->nlines, 0);
if (rc)
goto end;
/*
* We'll diff artifacts of type "ci" (i.e., "checkin") separately, as
* it's a different process to diff the others (wiki, technote, etc.).
*/
if (s->selected_entry->diff_type == FNC_DIFF_COMMIT &&
if (s->selected_commit->diff_type == FNC_DIFF_COMMIT)
!s->selected_entry->changeset.used)
rc = create_changeset(s->selected_entry);
else if (s->selected_entry->diff_type == FNC_DIFF_BLOB)
rc = diff_file_artifact(s, s->selected_entry->prid, NULL,
rc = create_changeset(s->selected_commit);
else if (s->selected_commit->diff_type == FNC_DIFF_BLOB)
rc = diff_file_artifact(s, s->selected_commit->prid, NULL,
NULL, FSL_CKOUT_CHANGE_MOD);
if (!rc && s->showmeta)
rc = write_commit_meta(s);
if (!rc && s->selected_entry->diff_type == FNC_DIFF_WIKI)
rc = diff_non_checkin(s);
else if (s->selected_commit->diff_type == FNC_DIFF_WIKI)
rc = diff_non_checkin(&s->buf, s->selected_commit,
s->diff_flags, s->context, s->sbs);
if (rc)
goto end;
/*
* Delay assigning diff headline labels (i.e., diff id1 id2) till now
* because wiki parent commits are obtained in diff_non_checkin().
*/
if (s->selected_entry->puuid) {
if (s->selected_commit->puuid) {
fsl_free(s->id1);
s->id1 = fsl_strdup(s->selected_entry->puuid);
s->id1 = fsl_strdup(s->selected_commit->puuid);
if (s->id1 == NULL) {
rc = RC(FSL_RC_ERROR, "%s", "fsl_strdup");
goto end;
}
} else
s->id1 = NULL; /* Initial commit, tag, technote, etc. */
if (s->selected_entry->uuid) {
if (s->selected_commit->uuid) {
fsl_free(s->id2);
s->id2 = fsl_strdup(s->selected_entry->uuid);
s->id2 = fsl_strdup(s->selected_commit->uuid);
if (s->id2 == NULL) {
rc = RC(FSL_RC_ERROR, "%s", "fsl_strdup");
goto end;
}
} else
s->id2 = NULL; /* Local work tree. */
rc = add_line_offset(&s->line_offsets, &s->nlines, 0);
if (!s->showmeta) {
if (rc)
s->index.offset = fsl_realloc(s->index.offset,
(s->index.n + 1) * sizeof(off_t));
goto end;
s->index.offset[s->index.n++] = 0;
}
if (s->showmeta)
write_commit_meta(s);
/*
* Diff local changes on disk in the current checkout differently to
* checked-in versions: the former compares on disk file content with
* file artifacts; the latter compares file artifact blobs only.
*/
if (s->selected_entry->diff_type == FNC_DIFF_COMMIT)
if (s->selected_commit->diff_type == FNC_DIFF_COMMIT)
diff_commit(s);
else if (s->selected_entry->diff_type == FNC_DIFF_CKOUT)
else if (s->selected_commit->diff_type == FNC_DIFF_CKOUT)
diff_checkout(s);
/*
* Parse the diff buffer line-by-line to record byte offsets of each
* line for scrolling and searching in diff view.
*/
st0 = fsl_strdup(fsl_buffer_str(&s->buf));
st = st0;
off = (s->line_offsets)[s->nlines - 1];
lnoff = (s->line_offsets)[s->nlines - 1];
s->index.lineno = fsl_malloc(s->index.n * sizeof(size_t));
while ((line = fnc_strsep(&st, "\n")) != NULL) {
int lineno, n = fprintf(s->f, "%s\n", line);
s->maxx = MAX(s->maxx, n);
s->maxx = MAX((int)s->maxx, n);
if (s->index.offset && idx < s->index.n &&
off == s->index.offset[idx]) {
lnoff == s->index.offset[idx]) {
lineno = s->nlines + (idx ? 1 : 0);
s->index.lineno[idx++] = lineno;
}
off += n;
rc = add_line_offset(&s->line_offsets, &s->nlines, off);
lnoff += n;
rc = add_line_offset(&s->line_offsets, &s->nlines, lnoff);
if (rc)
goto end;
}
--s->nlines; /* Don't count EOF '\n' */
end:
fsl_free(st0);
fsl_buffer_clear(&s->buf);
|
︙ | | |
4562
4563
4564
4565
4566
4567
4568
4569
4570
4571
4572
4573
4574
4575
4576
|
4411
4412
4413
4414
4415
4416
4417
4418
4419
4420
4421
4422
4423
4424
4425
|
-
+
|
while ((rc = fsl_stmt_step(st)) == FSL_RC_STEP_ROW) {
struct fsl_file_artifact *fdiff = NULL;
const char *path, *oldpath, *olduuid, *uuid;
/* TODO: Parse file mode to display in commit changeset. */
/* int perm; */
path = fsl_stmt_g_text(st, 0, NULL); /* Current filename. */
/* perm = fsl_stmt_g_int32(st, 1); */ /* File permissions. */
//perm = fsl_stmt_g_int32(st, 1); /* File permissions. */
olduuid = fsl_stmt_g_text(st, 2, NULL); /* UUID before change */
uuid = fsl_stmt_g_text(st, 3, NULL); /* UUID after change. */
oldpath = fsl_stmt_g_text(st, 4, NULL); /* Old name, if chngd */
fdiff = fsl_malloc(sizeof(struct fsl_file_artifact));
fdiff->fc = fsl_malloc(sizeof(fsl_card_F));
*fdiff->fc = fsl_card_F_empty;
|
︙ | | |
4602
4603
4604
4605
4606
4607
4608
4609
4610
4611
4612
4613
4614
4615
4616
4617
4618
4619
4620
4621
4622
4623
4624
4625
4626
4627
4628
4629
4630
4631
4632
4633
4634
4635
4636
4637
4638
4639
4640
4641
4642
4643
4644
4645
4646
4647
4648
4649
4650
4651
4652
4653
4654
4655
4656
4657
4658
4659
4660
4661
4662
4663
4664
4665
4666
4667
4668
4669
4670
4671
4672
4673
4674
4675
4676
4677
4678
4679
4680
4681
4682
4683
4684
4685
4686
4687
4688
4689
4690
4691
4692
4693
4694
4695
4696
4697
4698
4699
4700
4701
4702
4703
4704
4705
4706
4707
4708
4709
4710
4711
4712
|
4451
4452
4453
4454
4455
4456
4457
4458
4459
4460
4461
4462
4463
4464
4465
4466
4467
4468
4469
4470
4471
4472
4473
4474
4475
4476
4477
4478
4479
4480
4481
4482
4483
4484
4485
4486
4487
4488
4489
4490
4491
4492
4493
4494
4495
4496
4497
4498
4499
4500
4501
4502
4503
4504
4505
4506
4507
4508
4509
4510
4511
4512
4513
4514
4515
4516
4517
4518
4519
4520
4521
4522
4523
4524
4525
4526
4527
4528
4529
4530
4531
4532
4533
4534
4535
4536
|
-
+
-
-
+
-
-
-
-
+
+
-
+
-
-
-
+
-
-
+
-
+
-
-
-
+
-
-
-
+
+
-
+
-
-
-
+
-
-
+
-
+
-
-
-
+
-
-
+
-
-
-
+
-
-
+
-
+
-
+
-
-
-
-
-
+
+
-
-
+
-
-
-
+
-
-
+
-
+
-
+
|
}
static int
write_commit_meta(struct fnc_diff_view_state *s)
{
char *line = NULL, *st0 = NULL, *st = NULL;
fsl_size_t linelen, idx = 0;
off_t off = 0;
off_t lnoff = 0;
int rc = FSL_RC_OK, n = 7; /* Min lines in commit meta */
int n, rc = 0;
n += countlines(s->selected_entry->comment);
n += s->selected_entry->changeset.used;
if ((n = fprintf(s->f,"%s %s\n", s->selected_entry->type,
s->selected_entry->uuid)) < 0)
if ((n = fprintf(s->f,"%s %s\n", s->selected_commit->type,
s->selected_commit->uuid)) < 0)
goto end;
off += n;
lnoff += n;
rc = add_line_type(&s->dlines, LINE_DIFF_META, &s->ndlines, n, true);
if (!rc)
rc = add_line_offset(&s->line_offsets, &s->nlines, off);
if ((rc = add_line_offset(&s->line_offsets, &s->nlines, lnoff)))
if (rc)
goto end;
if ((n = fprintf(s->f,"user: %s\n", s->selected_entry->user)) < 0)
if ((n = fprintf(s->f,"user: %s\n", s->selected_commit->user)) < 0)
goto end;
off += n;
lnoff += n;
rc = add_line_type(&s->dlines, LINE_DIFF_USER, &s->ndlines, 0, true);
if (!rc)
rc = add_line_offset(&s->line_offsets, &s->nlines, off);
if ((rc = add_line_offset(&s->line_offsets, &s->nlines, lnoff)))
if (rc)
goto end;
if ((n = fprintf(s->f,"tags: %s\n", s->selected_entry->branch ?
s->selected_entry->branch : "/dev/null")) < 0)
if ((n = fprintf(s->f,"tags: %s\n", s->selected_commit->branch ?
s->selected_commit->branch : "/dev/null")) < 0)
goto end;
off += n;
lnoff += n;
rc = add_line_type(&s->dlines, LINE_DIFF_TAGS, &s->ndlines, 0, true);
if (!rc)
rc = add_line_offset(&s->line_offsets, &s->nlines, off);
if ((rc = add_line_offset(&s->line_offsets, &s->nlines, lnoff)))
if (rc)
goto end;
if ((n = fprintf(s->f,"date: %s\n",
s->selected_entry->timestamp)) < 0)
s->selected_commit->timestamp)) < 0)
goto end;
off += n;
lnoff += n;
rc = add_line_type(&s->dlines, LINE_DIFF_DATE, &s->ndlines, 0, true);
if (!rc)
rc = add_line_offset(&s->line_offsets, &s->nlines, off);
if ((rc = add_line_offset(&s->line_offsets, &s->nlines, lnoff)))
if (rc)
goto end;
fputc('\n', s->f);
++off;
++lnoff;
rc = add_line_type(&s->dlines, LINE_BLANK, &s->ndlines, 0, true);
if (!rc)
rc = add_line_offset(&s->line_offsets, &s->nlines, off);
if ((rc = add_line_offset(&s->line_offsets, &s->nlines, lnoff)))
if (rc)
goto end;
st0 = fsl_strdup(s->selected_entry->comment);
st0 = fsl_strdup(s->selected_commit->comment);
st = st0;
if (st == NULL) {
RC(FSL_RC_ERROR, "%s", "fsl_strdup");
goto end;
}
while ((line = fnc_strsep(&st, "\n")) != NULL) {
linelen = fsl_strlen(line);
if (linelen >= s->ncols) {
rc = wrapline(line, s->ncols - LINENO_WIDTH, s, &off);
rc = wrapline(line, s->ncols - LINENO_WIDTH, s, &lnoff);
if (rc)
goto end;
}
else {
if ((n = fprintf(s->f, "%s\n", line)) < 0)
goto end;
off += n;
lnoff += n;
rc = add_line_type(&s->dlines, LINE_DIFF_COMMENT,
&s->ndlines, 0, true);
if (!rc)
rc = add_line_offset(&s->line_offsets,
&s->nlines, off);
if ((rc = add_line_offset(&s->line_offsets, &s->nlines,
lnoff)))
if (rc)
goto end;
}
}
fputc('\n', s->f);
++off;
++lnoff;
rc = add_line_type(&s->dlines, LINE_BLANK, &s->ndlines, 0, true);
if (!rc)
rc = add_line_offset(&s->line_offsets, &s->nlines, off);
if ((rc = add_line_offset(&s->line_offsets, &s->nlines, lnoff)))
if (rc)
goto end;
if (s->selected_entry->diff_type == FNC_DIFF_WIKI)
if (s->selected_commit->diff_type == FNC_DIFF_WIKI)
goto end; /* No changeset for wiki commits. */
for (idx = 0; idx < s->selected_entry->changeset.used; ++idx) {
for (idx = 0; idx < s->selected_commit->changeset.used; ++idx) {
char *changeline;
struct fsl_file_artifact *file_change;
file_change = s->selected_entry->changeset.list[idx];
file_change = s->selected_commit->changeset.list[idx];
switch (file_change->change) {
case FSL_CKOUT_CHANGE_MOD:
changeline = "[~] ";
break;
case FSL_CKOUT_CHANGE_ADDED:
changeline = "[+] ";
|
︙ | | |
4721
4722
4723
4724
4725
4726
4727
4728
4729
4730
4731
4732
4733
4734
4735
4736
4737
4738
4739
4740
4741
4742
4743
4744
4745
4746
4747
4748
4749
4750
4751
4752
4753
4754
4755
4756
4757
4758
4759
4760
4761
4762
4763
4764
4765
4766
4767
4768
4769
4770
4771
4772
4773
4774
4775
4776
4777
4778
4779
4780
4781
4782
4783
4784
4785
4786
4787
4788
4789
4790
4791
4792
4793
4794
4795
4796
4797
4798
4799
4800
4801
4802
4803
4804
4805
4806
4807
4808
4809
4810
4811
4812
4813
4814
4815
4816
4817
4818
4819
4820
4821
4822
4823
4824
4825
4826
4827
4828
4829
4830
4831
4832
4833
4834
4835
4836
4837
4838
4839
4840
4841
4842
4843
4844
4845
4846
4847
4848
4849
4850
4851
4852
4853
4854
4855
4856
4857
4858
4859
4860
4861
4862
4863
4864
4865
4866
4867
4868
4869
4870
4871
4872
4873
4874
4875
4876
4877
4878
4879
4880
4881
4882
4883
4884
4885
4886
4887
4888
4889
4890
4891
4892
4893
4894
4895
|
4545
4546
4547
4548
4549
4550
4551
4552
4553
4554
4555
4556
4557
4558
4559
4560
4561
4562
4563
4564
4565
4566
4567
4568
4569
4570
4571
4572
4573
4574
4575
4576
4577
4578
4579
4580
4581
4582
4583
4584
4585
4586
4587
4588
4589
4590
4591
4592
4593
4594
4595
4596
4597
4598
4599
4600
4601
4602
4603
4604
4605
4606
4607
4608
4609
4610
4611
4612
4613
4614
4615
4616
4617
4618
4619
4620
4621
4622
4623
4624
4625
4626
4627
4628
4629
4630
4631
4632
4633
4634
4635
4636
4637
4638
4639
4640
4641
4642
4643
4644
4645
4646
4647
4648
4649
4650
4651
4652
4653
4654
4655
4656
4657
4658
4659
4660
4661
4662
4663
4664
4665
4666
4667
4668
4669
4670
4671
4672
4673
4674
4675
|
-
+
-
-
-
-
+
-
-
+
-
-
-
+
-
-
-
-
+
+
-
-
-
-
-
-
-
-
-
-
-
-
-
+
-
+
-
-
+
+
-
+
-
+
-
-
-
-
-
+
+
-
+
-
+
-
-
-
+
+
-
+
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+
-
+
-
-
+
+
|
default:
changeline = "[!] ";
break;
}
if ((n = fprintf(s->f, "%s%s\n", changeline,
file_change->fc->name)) < 0)
goto end;
off += n;
lnoff += n;
rc = add_line_type(&s->dlines, LINE_DIFF_META, &s->ndlines, 0,
true);
if (!rc)
rc = add_line_offset(&s->line_offsets, &s->nlines, off);
if ((rc = add_line_offset(&s->line_offsets, &s->nlines, lnoff)))
if (rc)
goto end;
}
/* Add blank line between end of changeset and diff. */
fputc('\n', s->f);
++off;
++lnoff;
rc = add_line_type(&s->dlines, LINE_BLANK, &s->ndlines, 0, true);
if (!rc)
rc = add_line_offset(&s->line_offsets, &s->nlines, off);
rc = add_line_offset(&s->line_offsets, &s->nlines, lnoff);
if (rc)
goto end;
s->index.offset = fsl_realloc(s->index.offset,
(s->index.n + 1) * sizeof(off_t));
s->index.offset[s->index.n++] = off;
(s->index.n + 1) * sizeof(size_t));
s->index.offset[s->index.n++] = lnoff;
end:
free(st0);
free(line);
if (rc) {
free(*&s->line_offsets);
s->line_offsets = NULL;
s->nlines = 0;
}
return rc;
}
static int
countlines(const char *str)
{
int n, idx;
for (idx = 0, n = 1; str[idx]; ++idx)
if (str[idx] == '\n')
++n;
return str[idx - 1] == '\n' ? n : ++n;
}
/*
* Wrap long lines at the terminal's available column width. The caller
* must ensure the limit parameter has taken into account whether the
* must ensure the ncols_avail parameter has taken into account whether the
* screen is currently split, and not mistakenly pass in the curses COLS macro
* without deducting the parent panel's width. This function doesn't break
* words, and will wrap at the end of the last word that can wholly fit within
* the limit limit.
* the ncols_avail limit.
*/
static int
wrapline(char *line, fsl_size_t limit, struct fnc_diff_view_state *s,
off_t *off)
wrapline(char *line, fsl_size_t ncols_avail, struct fnc_diff_view_state *s,
off_t *lnoff)
{
char *word;
fsl_size_t wordlen, cursor = 0;
int n = 0, rc = 0;
while ((word = fnc_strsep(&line, " ")) != NULL) {
wordlen = fsl_strlen(word);
if ((cursor + wordlen) >= limit) {
if ((cursor + wordlen) >= ncols_avail) {
fputc('\n', s->f);
++(*off);
++(*lnoff);
rc = add_line_type(&s->dlines, LINE_DIFF_COMMENT,
&s->ndlines, 0, true);
if (!rc)
rc = add_line_offset(&s->line_offsets,
&s->nlines, *off);
rc = add_line_offset(&s->line_offsets, &s->nlines,
*lnoff);
if (rc)
return rc;
cursor = 0;
}
if ((n = fprintf(s->f, "%s ", word)) < 0)
return rc;
*off += n;
*lnoff += n;
cursor += n;
}
fputc('\n', s->f);
++(*off);
++(*lnoff);
rc = add_line_type(&s->dlines, LINE_DIFF_COMMENT, &s->ndlines, 0, true);
if (!rc)
rc = add_line_offset(&s->line_offsets, &s->nlines, *off);
if ((rc = add_line_offset(&s->line_offsets, &s->nlines, *lnoff)))
return rc;
return rc;
return 0;
}
static int
add_line_offset(off_t **line_offsets, size_t *nlines, off_t off)
{
off_t *p;
p = fsl_realloc(*line_offsets, (*nlines + 1) * sizeof(off_t));
if (p == NULL)
return RC(FSL_RC_ERROR, "%s", "fsl_realloc");
*line_offsets = p;
(*line_offsets)[*nlines] = off;
(*nlines)++;
return 0;
}
static int
add_line_type(enum line_type **lines, enum line_type type, uint32_t *nlines,
uint32_t alloc, bool incr)
{
if (alloc) {
enum line_type *p;
p = fsl_realloc(*lines,
(*nlines + alloc) * sizeof(enum line_type *));
if (p == NULL)
return RC(FSL_RC_ERROR, "%s", "fsl_realloc");
*lines = p;
}
(*lines)[*nlines] = type;
if (incr)
(*nlines)++;
return FSL_RC_OK;
}
/*
* Fill the buffer with the differences between commit->uuid and commit->puuid.
* commit->rid (to load into deck d2) is the *this* version, and commit->puuid
* (to be loaded into deck d1) is the version we diff against. Step through the
* deck of F(ile) cards from both versions to determine: (1) if we have new
* files added (i.e., no F card counterpart in d1); (2) files deleted (i.e., no
* F card counterpart in d2); (3) or otherwise the same file (i.e., F card
* exists in both d1 and d2). In cases (1) and (2), we call diff_file_artifact()
* to dump the complete content of the added/deleted file if FNC_DIFF_VERBOSE is
* to dump the complete content of the added/deleted file if FSL_DIFF_VERBOSE is
* set, otherwise only diff metatadata will be output. In case (3), if the
* hash (UUID) of each F card is the same, there are no changes; if different,
* both artifacts will be passed to diff_file_artifact() to be diffed.
*/
static int
diff_commit(struct fnc_diff_view_state *s)
{
fsl_cx *const f = fcli_cx();
const fsl_card_F *fc1 = NULL;
const fsl_card_F *fc2 = NULL;
fsl_deck d1 = fsl_deck_empty;
fsl_deck d2 = fsl_deck_empty;
fsl_id_t id1;
int different = 0, rc = 0;
rc = fsl_deck_load_rid(f, &d2, s->selected_entry->rid,
rc = fsl_deck_load_rid(f, &d2, s->selected_commit->rid,
FSL_SATYPE_CHECKIN);
if (rc)
goto end;
rc = fsl_deck_F_rewind(&d2);
if (rc)
goto end;
/*
* For the one-and-only special case of repositories, such as the
* canonical fnc, that do not have an "initial empty check-in", we
* proceed with no parent version to diff against.
*/
if (s->selected_entry->puuid) {
rc = fsl_sym_to_rid(f, s->selected_entry->puuid,
if (s->selected_commit->puuid) {
rc = fsl_sym_to_rid(f, s->selected_commit->puuid,
FSL_SATYPE_CHECKIN, &id1);
if (rc)
goto end;
rc = fsl_deck_load_rid(f, &d1, id1, FSL_SATYPE_CHECKIN);
if (rc)
goto end;
rc = fsl_deck_F_rewind(&d1);
|
︙ | | |
4984
4985
4986
4987
4988
4989
4990
4991
4992
4993
4994
4995
4996
4997
4998
4999
|
4764
4765
4766
4767
4768
4769
4770
4771
4772
4773
4774
4775
4776
4777
4778
4779
4780
4781
4782
4783
4784
4785
|
-
+
+
+
+
+
+
+
|
fsl_buffer sql, abspath, bminus;
fsl_uuid_str xminus = NULL;
fsl_id_t cid, vid;
int rc = 0;
bool allow_symlinks;
abspath = bminus = sql = fsl_buffer_empty;
vid = s->selected_entry->prid;
vid = s->selected_commit->prid;
fsl_ckout_version_info(f, &cid, NULL);
/* cid = fsl_config_get_id(f, FSL_CONFDB_CKOUT, 0, "checkout"); */
/* XXX Already done in cmd_diff(): Load vfile table with local state. */
/* rc = fsl_vfile_changes_scan(f, cid, */
/* FSL_VFILE_CKSIG_ENOTFILE & FSL_VFILE_CKSIG_KEEP_OTHERS); */
/* if (rc) */
/* return RC(rc, "%s", "fsl_vfile_changes_scan"); */
/*
* If a previous version is supplied, load its vfile state to query
* changes. Otherwise query the current checkout state for changes.
*/
if (vid != cid) {
/* Keep vfile ckout state; but unload vid when finished. */
|
︙ | | |
5103
5104
5105
5106
5107
5108
5109
5110
5111
5112
5113
5114
5115
5116
5117
5118
|
4889
4890
4891
4892
4893
4894
4895
4896
4897
4898
4899
4900
4901
4902
4903
4904
|
-
-
+
+
|
}
if (!xminus)
xminus = fsl_strdup(NULL_DEVICE);
allow_symlinks = fsl_config_get_bool(f, FSL_CONFDB_REPO, false,
"allow-symlinks");
if (!symlink != !(fsl_is_symlink(fsl_buffer_cstr(&abspath)) &&
allow_symlinks)) {
rc = write_diff_meta(s, path, xminus, path, NULL_DEVICE,
change);
rc = write_diff_meta(&s->buf, path, xminus, path,
NULL_DEVICE, s->diff_flags, change);
fsl_buffer_append(&s->buf,
"\nSymbolic links cannot be diffed\n", -1);
if (rc)
goto yield;
continue;
}
if (fid > 0 && change != FSL_CKOUT_CHANGE_ADDED) {
|
︙ | | |
5171
5172
5173
5174
5175
5176
5177
5178
5179
5180
5181
5182
5183
5184
5185
5186
5187
5188
5189
5190
|
4957
4958
4959
4960
4961
4962
4963
4964
4965
4966
4967
4968
4969
4970
4971
4972
4973
4974
4975
4976
|
-
-
+
+
+
-
|
* xminus hex hash of file named zminus
* zplus file name of the file being diffed
* xplus hex hash of the file named zplus
* diff_flags bitwise flags to control the diff
* change enum denoting the versioning change of the file
*/
static int
write_diff_meta(struct fnc_diff_view_state *s, const char *zminus,
fsl_uuid_str xminus, const char *zplus, fsl_uuid_str xplus,
write_diff_meta(fsl_buffer *buf, const char *zminus, fsl_uuid_str xminus,
const char *zplus, fsl_uuid_str xplus, int diff_flags,
enum fsl_ckout_change_e change)
{
int rc = 0;
const char *index, *plus, *minus;
int rc = FSL_RC_OK;
index = zplus ? zplus : (zminus ? zminus : NULL_DEVICE);
switch (change) {
case FSL_CKOUT_CHANGE_MERGE_ADD:
/* FALL THROUGH */
case FSL_CKOUT_CHANGE_INTEGRATE_ADD:
|
︙ | | |
5207
5208
5209
5210
5211
5212
5213
5214
5215
5216
5217
5218
5219
5220
5221
5222
5223
5224
5225
5226
5227
5228
5229
5230
5231
5232
5233
5234
5235
5236
5237
5238
5239
5240
5241
5242
5243
5244
5245
5246
5247
5248
5249
5250
5251
5252
5253
5254
5255
5256
5257
5258
5259
5260
5261
5262
5263
5264
5265
5266
|
4993
4994
4995
4996
4997
4998
4999
5000
5001
5002
5003
5004
5005
5006
5007
5008
5009
5010
5011
5012
5013
5014
5015
5016
5017
5018
5019
5020
5021
5022
5023
5024
5025
5026
5027
5028
5029
5030
5031
5032
5033
5034
5035
5036
5037
5038
5039
5040
5041
5042
5043
5044
5045
|
-
+
-
+
-
-
-
-
-
-
-
-
-
+
+
-
-
+
+
-
-
-
+
+
+
|
/* FALL THROUGH */
default:
minus = xminus;
plus = xplus;
break;
}
if FLAG_CHK(s->diff_flags, FNC_DIFF_INVERT) {
if FLAG_CHK(diff_flags, FSL_DIFF2_INVERT) {
const char *tmp = minus;
minus = plus;
plus = tmp;
tmp = zminus;
zminus = zplus;
zplus = tmp;
}
if (!FLAG_CHK(s->diff_flags, FNC_DIFF_BRIEF)) {
if (!FLAG_CHK(diff_flags, (FSL_DIFF_SIDEBYSIDE | FSL_DIFF_BRIEF))) {
int c, i;
for (c = 0, i = 10; !rc && i < 14; ++c) {
rc = add_line_type(&s->dlines, (enum line_type)i,
&s->ndlines, (!c ? 6 : 0), true);
i += (c > 3 || c % 2) ? 1 : 0;
}
if (!rc)
rc = fsl_buffer_appendf(&s->buf, "%sIndex: %s\n%.71c\n",
s->buf.used ? "\n" : "", index, '=');
rc = fsl_buffer_appendf(buf, "%sIndex: %s\n%.71c\n",
buf->used ? "\n" : "", index, '=');
if (!rc)
rc = fsl_buffer_appendf(&s->buf,
"hash - %s\nhash + %s\n", minus, plus);
rc = fsl_buffer_appendf(buf, "hash - %s\nhash + %s\n",
minus, plus);
if (!rc)
rc = fsl_buffer_appendf(&s->buf, "--- %s\n+++ %s\n",
zminus, zplus);
}
if (!rc && !FLAG_CHK(diff_flags, FSL_DIFF_BRIEF))
rc = fsl_buffer_appendf(buf, "--- %s\n+++ %s\n", zminus, zplus);
return rc;
}
/*
* The diff_file_artifact() counterpart that diffs actual files on disk rather
* than file artifacts in the Fossil repository's blob table.
* buf output buffer in which diff output will be appended
* bminus blob containing content of the versioned file being diffed against
* zminus filename of bminus
* xminus hex UUID containing the SHA{1,3} hash of the file named zminus
* abspath absolute path to the file on disk being diffed
* change enum denoting the versioning change of the file
* diff_flags, context, and sbs are the same parameters as diff_file_artifact()
*/
static int
diff_file(struct fnc_diff_view_state *s, fsl_buffer *bminus, const char *zminus,
fsl_uuid_str xminus, const char *abspath, enum fsl_ckout_change_e change)
{
fsl_cx *const f = fcli_cx();
fsl_dibu *diffbld = NULL;
fsl_buffer bplus = fsl_buffer_empty;
fsl_buffer xplus = fsl_buffer_empty;
const char *zplus = NULL;
int rc = 0;
/*
* If it exists, read content of abspath to diff EXCEPT for the content
|
︙ | | |
5316
5317
5318
5319
5320
5321
5322
5323
5324
5325
5326
5327
5328
5329
5330
5331
5332
5333
5334
5335
5336
5337
5338
5339
5340
5341
5342
5343
5344
5345
5346
5347
5348
5349
5350
5351
5352
5353
5354
5355
5356
5357
5358
5359
5360
5361
5362
5363
5364
5365
5366
5367
5368
5369
5370
5371
5372
5373
5374
5375
5376
5377
5378
5379
5380
5381
5382
5383
5384
5385
5386
5387
5388
5389
5390
5391
5392
5393
5394
5395
5396
5397
5398
5399
5400
5401
5402
5403
5404
5405
5406
5407
5408
5409
5410
5411
5412
5413
5414
5415
5416
5417
5418
5419
5420
5421
5422
5423
5424
5425
5426
5427
5428
5429
5430
5431
5432
5433
5434
5435
5436
5437
5438
5439
5440
5441
5442
5443
5444
5445
5446
5447
5448
5449
5450
5451
5452
5453
5454
5455
5456
5457
5458
5459
5460
5461
5462
5463
|
5095
5096
5097
5098
5099
5100
5101
5102
5103
5104
5105
5106
5107
5108
5109
5110
5111
5112
5113
5114
5115
5116
5117
5118
5119
5120
5121
5122
5123
5124
5125
5126
5127
5128
5129
5130
5131
5132
5133
5134
5135
5136
5137
5138
5139
5140
5141
5142
5143
5144
5145
5146
5147
5148
5149
5150
5151
5152
5153
5154
5155
5156
5157
5158
5159
5160
5161
5162
5163
5164
5165
5166
5167
5168
5169
5170
5171
5172
5173
5174
5175
5176
5177
5178
5179
5180
5181
5182
5183
5184
5185
5186
5187
5188
5189
5190
5191
5192
5193
5194
5195
5196
5197
5198
5199
5200
5201
5202
5203
5204
5205
5206
5207
5208
5209
5210
5211
5212
5213
5214
5215
5216
5217
5218
5219
5220
5221
5222
5223
5224
5225
5226
5227
5228
5229
5230
5231
5232
5233
5234
5235
5236
5237
5238
5239
5240
5241
5242
5243
5244
5245
5246
5247
5248
5249
5250
5251
5252
5253
5254
5255
5256
5257
5258
5259
5260
5261
5262
5263
5264
5265
5266
5267
5268
5269
5270
5271
5272
5273
5274
5275
5276
5277
5278
5279
5280
5281
5282
5283
5284
5285
5286
5287
5288
5289
5290
5291
5292
5293
5294
5295
5296
5297
|
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
-
+
-
+
-
+
-
-
+
+
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
+
+
+
-
+
-
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
-
+
-
+
-
-
+
-
+
-
+
-
+
-
+
-
-
-
+
+
+
+
+
+
+
-
+
+
|
default:
RC(FSL_RC_SIZE_MISMATCH, "invalid artifact uuid [%s]", xminus);
goto end;
}
if (rc)
goto end;
if (s->buf.used) {
s->index.offset = fsl_realloc(s->index.offset,
(s->index.n + 1) * sizeof(off_t));
s->index.offset[s->index.n++] = s->buf.used;
}
rc = write_diff_meta(s, zminus, xminus, zplus, fsl_buffer_str(&xplus),
s->index.offset = fsl_realloc(s->index.offset,
(s->index.n + 1) * sizeof(size_t));
s->index.offset[s->index.n++] = s->buf.used;
rc = write_diff_meta(&s->buf, zminus, xminus, zplus,
fsl_buffer_str(&xplus), s->diff_flags, change);
if (rc)
goto end;
rc = fnc_diff_builder(&diffbld, xminus, fsl_buffer_str(&xplus), zminus,
change);
zplus, s->context, s->diff_flags, &s->buf);
if (rc)
goto end;
if FLAG_CHK(s->diff_flags, FNC_DIFF_BRIEF) {
if FLAG_CHK(s->diff_flags, FSL_DIFF_BRIEF) {
rc = fsl_buffer_compare(bminus, &bplus);
if (!rc)
rc = fsl_buffer_appendf(&s->buf, "CHANGED -> %s\n",
zminus);
} else if (FLAG_CHK(s->diff_flags, FNC_DIFF_VERBOSE) ||
} else if (FLAG_CHK(s->diff_flags, FSL_DIFF_VERBOSE) ||
(bminus->used && bplus.used))
rc = fnc_diff_text_to_buffer(bminus, &bplus, &s->buf,
&s->dlines, &s->ndlines, s->context, s->sbs,
rc = fsl_diff_v2(bminus, &bplus, diffbld);
s->diff_flags);
end:
rc = add_line_type(&s->dlines, LINE_BLANK, &s->ndlines, 0, true);
fsl_buffer_clear(&bplus);
fsl_buffer_clear(&xplus);
fnc_free_diff_builder(diffbld);
return rc;
}
static int
fnc_diff_builder(fsl_dibu **ptr, fsl_uuid_cstr xminus, fsl_uuid_cstr xplus,
const char *zminus, const char *zplus, int context, int diff_flags,
fsl_buffer *buf)
{
fsl_dibu *diffbld = NULL;
fsl_dibu_opt *diffopt = NULL;
struct fsl_dibu_opt_ansi ansiopt = {"", "", "", ""};
int rc = FSL_RC_OK;
*ptr = NULL;
diffopt = fsl_malloc(sizeof(fsl_dibu_opt));
if (diffopt == NULL)
return RC(FSL_RC_ERROR, "%s", "fsl_malloc");
FLAG_SET(diff_flags, FSL_DIFF2_CONTEXT_ZERO);
diffopt->ansiColor = ansiopt;
diffopt->hashLHS = xminus;
diffopt->hashRHS = xplus;
diffopt->nameLHS = zminus;
diffopt->nameRHS = zplus;
diffopt->diffFlags = diff_flags;
diffopt->contextLines = context;
diffopt->out = fsl_output_f_buffer;
diffopt->outState = buf;
rc = fsl_dibu_factory(FSL_DIBU_UNIFIED_TEXT, &diffbld);
if (!rc) {
diffbld->opt = diffopt;
diffbld->start = NULL;
*ptr = diffbld;
} else
fsl_free(diffopt);
return rc;
}
static void
fnc_free_diff_builder(fsl_dibu *diffbld)
{
if (diffbld) {
if (diffbld->opt)
fsl_free(diffbld->opt);
diffbld->finalize(diffbld);
}
}
/*
* Parse the deck of non-checkin commits to present a 'fossil ui' equivalent
* of the corresponding artifact when selected from the timeline.
* TODO: Rename this horrible function name.
*/
static int
diff_non_checkin(struct fnc_diff_view_state *s)
diff_non_checkin(fsl_buffer *buf, struct fnc_commit_artifact *commit,
int diff_flags, int context, int sbs)
{
fsl_cx *const f = fcli_cx();
fsl_dibu *diffbld = NULL;
fsl_buffer wiki = fsl_buffer_empty;
fsl_buffer pwiki = fsl_buffer_empty;
fsl_id_t prid = 0;
fsl_size_t idx;
int rc = 0;
fsl_deck *d = NULL;
d = fsl_deck_malloc();
if (d == NULL)
return RC(FSL_RC_ERROR, "%s", "fsl_deck_malloc");
fsl_deck_init(f, d, FSL_SATYPE_ANY);
rc = fsl_deck_load_rid(f, d, s->selected_entry->rid, FSL_SATYPE_ANY);
if ((rc = fsl_deck_load_rid(f, d, commit->rid, FSL_SATYPE_ANY)))
if (rc)
goto end;
/*
* Present ticket commits as a series of field: value tuples as per
* the Fossil UI /info/UUID view.
*/
if (d->type == FSL_SATYPE_TICKET) {
for (idx = 0; idx < d->J.used; ++idx) {
fsl_card_J *ticket = d->J.list[idx];
bool icom = !fsl_strncmp(ticket->field, "icom", 4);
fsl_buffer_appendf(&s->buf, "%d. %s:%s%s%c\n", idx + 1,
fsl_buffer_appendf(buf, "%d. %s:%s%s%c\n", idx + 1,
ticket->field, icom ? "\n\n" : " ", ticket->value,
icom ? '\n' : ' ');
}
goto end;
}
if (d->type == FSL_SATYPE_CONTROL) {
for (idx = 0; idx < d->T.used; ++idx) {
fsl_card_T *ctl = d->T.list[idx];
fsl_buffer_appendf(&s->buf, "Tag %d ", idx + 1);
fsl_buffer_appendf(buf, "Tag %d ", idx + 1);
switch (ctl->type) {
case FSL_TAGTYPE_CANCEL:
fsl_buffer_append(&s->buf, "[CANCEL]", -1);
fsl_buffer_append(buf, "[CANCEL]", -1);
break;
case FSL_TAGTYPE_ADD:
fsl_buffer_append(&s->buf, "[ADD]", -1);
fsl_buffer_append(buf, "[ADD]", -1);
break;
case FSL_TAGTYPE_PROPAGATING:
fsl_buffer_append(&s->buf, "[PROPAGATE]", -1);
fsl_buffer_append(buf, "[PROPAGATE]", -1);
break;
default:
break;
}
if (ctl->uuid)
fsl_buffer_appendf(&s->buf, "\ncheckin %s",
fsl_buffer_appendf(buf, "\ncheckin %s",
ctl->uuid);
fsl_buffer_appendf(&s->buf, "\n%s", ctl->name);
fsl_buffer_appendf(buf, "\n%s", ctl->name);
if (!fsl_strcmp(ctl->name, "branch"))
s->selected_entry->branch =
fsl_strdup(ctl->value);
commit->branch = fsl_strdup(ctl->value);
if (ctl->value)
fsl_buffer_appendf(&s->buf, " -> %s",
fsl_buffer_appendf(buf, " -> %s", ctl->value);
ctl->value);
fsl_buffer_append(&s->buf, "\n\n", 2);
fsl_buffer_append(buf, "\n\n", 2);
}
goto end;
}
/*
* If neither a ticket nor control artifact, we assume it's a wiki, so
* check if it has a parent commit to diff against. If not, append the
* entire wiki card content.
*/
fsl_buffer_append(&wiki, d->W.mem, d->W.used);
if (s->selected_entry->puuid == NULL) {
if (commit->puuid == NULL) {
if (d->P.used > 0)
s->selected_entry->puuid = fsl_strdup(d->P.list[0]);
commit->puuid = fsl_strdup(d->P.list[0]);
else {
fsl_buffer_copy(&s->buf, &wiki);
fsl_buffer_copy(buf, &wiki);
goto end;
}
}
/* Diff the artifacts if a parent is found. */
rc = fsl_sym_to_rid(f, s->selected_entry->puuid, FSL_SATYPE_ANY,
rc = fsl_sym_to_rid(f, commit->puuid, FSL_SATYPE_ANY, &prid);
&prid);
if (rc)
goto end;
rc = fsl_deck_load_rid(f, d, prid, FSL_SATYPE_ANY);
if (rc)
goto end;
fsl_buffer_append(&pwiki, d->W.mem, d->W.used);
rc = fnc_diff_text_to_buffer(&pwiki, &wiki, &s->buf, &s->dlines,
&s->ndlines, s->context, s->sbs, s->diff_flags);
rc = fnc_diff_builder(&diffbld, NULL, NULL, NULL, NULL, context,
diff_flags, buf);
if (rc)
goto end;
rc = fsl_diff_v2(&pwiki, &wiki, diffbld);
if (rc)
goto end;
/* If a technote, provide the full content after its diff. */
if (d->type == FSL_SATYPE_TECHNOTE)
fsl_buffer_appendf(&s->buf, "\n---\n\n%s", wiki.mem);
fsl_buffer_appendf(buf, "\n---\n\n%s", wiki.mem);
end:
fsl_buffer_clear(&wiki);
fsl_buffer_clear(&pwiki);
fsl_deck_finalize(d);
fnc_free_diff_builder(diffbld);
return rc;
}
/*
* Compute the differences between two repository file artifacts to produce the
* set of changes necessary to convert one into the other.
* buf output buffer in which diff output will be appended
|
︙ | | |
5471
5472
5473
5474
5475
5476
5477
5478
5479
5480
5481
5482
5483
5484
5485
5486
5487
5488
5489
5490
5491
5492
5493
5494
5495
5496
5497
5498
5499
5500
5501
5502
5503
5504
5505
5506
5507
|
5305
5306
5307
5308
5309
5310
5311
5312
5313
5314
5315
5316
5317
5318
5319
5320
5321
5322
5323
5324
5325
5326
5327
5328
5329
5330
5331
5332
5333
5334
5335
5336
5337
5338
5339
5340
5341
5342
|
+
-
+
-
+
|
* sbs number of columns in which to display each side-by-side diff
*/
static int
diff_file_artifact(struct fnc_diff_view_state *s, fsl_id_t vid1,
const fsl_card_F *a, const fsl_card_F *b, enum fsl_ckout_change_e change)
{
fsl_cx *const f = fcli_cx();
fsl_dibu *diffbld = NULL;
fsl_stmt stmt = fsl_stmt_empty;
fsl_buffer fbuf1 = fsl_buffer_empty;
fsl_buffer fbuf2 = fsl_buffer_empty;
char *zminus0 = NULL, *zplus0 = NULL;
const char *zplus = NULL, *zminus = NULL;
fsl_uuid_str xplus0 = NULL, xminus0 = NULL;
fsl_uuid_str xplus = NULL, xminus = NULL;
fsl_id_t vid2 = s->selected_entry->rid;
fsl_id_t vid2 = s->selected_commit->rid;
int rc = 0;
assert(vid1 != vid2);
assert(vid2 > 0 &&
"local checkout should be diffed with diff_checkout()");
fbuf2.used = fbuf1.used = 0;
if (a) {
rc = fsl_card_F_content(f, a, &fbuf1);
if (rc)
goto end;
zminus = a->name;
xminus = a->uuid;
} else if (s->selected_entry->diff_type == FNC_DIFF_BLOB) {
} else if (s->selected_commit->diff_type == FNC_DIFF_BLOB) {
rc = fsl_cx_prepare(f, &stmt,
"SELECT name FROM filename, mlink "
"WHERE filename.fnid=mlink.fnid AND mlink.fid = %d", vid1);
if (rc) {
rc = RC(FSL_RC_DB, "%s %d", "fsl_cx_prepare", vid1);
goto end;
}
|
︙ | | |
5523
5524
5525
5526
5527
5528
5529
5530
5531
5532
5533
5534
5535
5536
5537
|
5358
5359
5360
5361
5362
5363
5364
5365
5366
5367
5368
5369
5370
5371
5372
|
-
+
|
}
if (b) {
rc = fsl_card_F_content(f, b, &fbuf2);
if (rc)
goto end;
zplus = b->name;
xplus = b->uuid;
} else if (s->selected_entry->diff_type == FNC_DIFF_BLOB) {
} else if (s->selected_commit->diff_type == FNC_DIFF_BLOB) {
rc = fsl_cx_prepare(f, &stmt,
"SELECT name FROM filename, mlink "
"WHERE filename.fnid=mlink.fnid AND mlink.fid = %d", vid2);
if (rc) {
rc = RC(FSL_RC_DB, "%s %d", "fsl_cx_prepare", vid2);
goto end;
}
|
︙ | | |
5550
5551
5552
5553
5554
5555
5556
5557
5558
5559
5560
5561
5562
5563
5564
5565
5566
5567
5568
5569
5570
5571
5572
5573
5574
5575
5576
5577
5578
5579
5580
5581
5582
5583
5584
5585
5586
5587
5588
|
5385
5386
5387
5388
5389
5390
5391
5392
5393
5394
5395
5396
5397
5398
5399
5400
5401
5402
5403
5404
5405
5406
5407
5408
5409
5410
5411
5412
5413
5414
5415
5416
5417
5418
5419
5420
5421
5422
5423
5424
5425
|
-
-
+
+
-
-
+
+
-
-
-
-
+
+
+
+
+
+
-
+
-
+
|
xplus = xplus0;
fsl_stmt_finalize(&stmt);
fsl_content_get(f, vid2, &fbuf2);
}
if (s->buf.used) {
s->index.offset = fsl_realloc(s->index.offset,
(s->index.n + 1) * sizeof(off_t));
s->index.offset[s->index.n++] = s->buf.used +
(s->index.n + 1) * sizeof(size_t));
s->index.offset[s->index.n++] = s->buf.used + s->index.offset[0];
s->index.offset[0];
}
rc = write_diff_meta(s, zminus, xminus, zplus, xplus, change);
rc = write_diff_meta(&s->buf, zminus, xminus, zplus, xplus,
s->diff_flags, change);
if (rc)
goto end;
if (FLAG_CHK(s->diff_flags, FNC_DIFF_VERBOSE) || (a && b))
rc = fnc_diff_text_to_buffer(&fbuf1, &fbuf2, &s->buf,
&s->dlines, &s->ndlines, s->context, s->sbs,
s->diff_flags);
rc = fnc_diff_builder(&diffbld, xminus, xplus, zminus, zplus,
s->context, s->diff_flags, &s->buf);
if (rc)
goto end;
if (FLAG_CHK(s->diff_flags, FSL_DIFF_VERBOSE) || (a && b))
rc = fsl_diff_v2(&fbuf1, &fbuf2, diffbld);
if (rc)
RC(rc, "%s: fnc_diff_text_to_buffer\n"
RC(rc, "%s: fsl_diff_text_to_buffer\n"
" -> %s [%s]\n -> %s [%s]", fsl_rc_cstr(rc),
a ? a->name : NULL_DEVICE, a ? a->uuid : NULL_DEVICE,
b ? b->name : NULL_DEVICE, b ? b->uuid : NULL_DEVICE);
end:
rc = add_line_type(&s->dlines, LINE_BLANK, &s->ndlines, 0, true);
fsl_free(zminus0);
fsl_free(zplus0);
fsl_free(xminus0);
fsl_free(xplus0);
fsl_buffer_clear(&fbuf1);
fsl_buffer_clear(&fbuf2);
fnc_free_diff_builder(diffbld);
return rc;
}
static int
show_diff(struct fnc_view *view)
{
struct fnc_diff_view_state *s = &view->state.diff;
|
︙ | | |
5624
5625
5626
5627
5628
5629
5630
5631
5632
5633
5634
5635
5636
5637
5638
|
5461
5462
5463
5464
5465
5466
5467
5468
5469
5470
5471
5472
5473
5474
5475
|
-
+
|
char *line;
size_t linesz = 0;
ssize_t linelen;
off_t line_offset;
attr_t rx = A_BOLD;
int col, wstrlen, max_lines = view->nlines;
int nlines = s->nlines;
int nprinted = 0, rc = FSL_RC_OK;
int npad = 0, nprinted = 0, rc = FSL_RC_OK;
bool selected;
s->lineno = s->first_line_onscreen - 1;
line_offset = s->line_offsets[s->first_line_onscreen - 1];
if (fseeko(s->f, line_offset, SEEK_SET))
return RC(fsl_errno_to_rc(errno, FSL_RC_ERROR), "%s", "fseeko");
|
︙ | | |
5647
5648
5649
5650
5651
5652
5653
5654
5655
5656
5657
5658
5659
5660
5661
|
5484
5485
5486
5487
5488
5489
5490
5491
5492
5493
5494
5495
5496
5497
5498
|
-
+
|
pctlen = snprintf(pct, MAX_PCT_LEN, "%.*lf%%",
percent > 99.99 ? 0 : 2, percent);
if (pctlen < 0)
return RC(FSL_RC_RANGE, "%s", "snprintf");
line = fsl_mprintf("[%d/%d] %s", ln, nlines, headln);
if (line == NULL)
return RC(FSL_RC_RANGE, "%s", "fsl_mprintf");
rc = formatln(&wcstr, &wstrlen, line, view->ncols, 0, false);
rc = formatln(&wcstr, &wstrlen, line, view->ncols, 0, 0, false);
fsl_free(line);
fsl_free(headln);
if (rc)
return rc;
if (screen_is_shared(view) || view->active)
rx |= A_REVERSE;
|
︙ | | |
5673
5674
5675
5676
5677
5678
5679
5680
5681
5682
5683
5684
5685
5686
5687
|
5510
5511
5512
5513
5514
5515
5516
5517
5518
5519
5520
5521
5522
5523
|
-
|
if (--max_lines < 1)
return rc;
}
s->eof = false;
line = NULL;
while (max_lines > 0 && nprinted < max_lines) {
col = wstrlen = 0;
linelen = getline(&line, &linesz, s->f);
if (linelen == -1) {
if (feof(s->f)) {
s->eof = true;
break;
}
fsl_free(line);
|
︙ | | |
5696
5697
5698
5699
5700
5701
5702
5703
5704
5705
5706
5707
5708
5709
5710
5711
5712
5713
5714
5715
5716
5717
5718
5719
5720
5721
5722
5723
5724
5725
5726
5727
5728
5729
5730
5731
5732
5733
5734
5735
5736
5737
5738
5739
|
5532
5533
5534
5535
5536
5537
5538
5539
5540
5541
5542
5543
5544
5545
5546
5547
5548
5549
5550
5551
5552
5553
5554
5555
5556
5557
5558
5559
5560
5561
5562
5563
5564
5565
5566
5567
5568
5569
5570
5571
5572
5573
5574
|
-
+
-
-
-
+
-
-
-
+
+
+
+
+
+
+
-
+
-
-
-
+
+
+
+
+
-
-
-
-
-
-
+
|
if (!gotoline(view, &s->lineno, &nprinted))
continue;
rx = 0;
if ((selected = nprinted == s->selected_line - 1))
rx = A_BOLD | A_REVERSE;
if (s->showln)
col = draw_lineno(view, nlines, s->lineno, rx);
npad = draw_lineno(view, nlines, s->lineno, rx);
if (s->colour)
c = FLAG_CHK(s->diff_flags, FNC_DIFF_SIDEBYSIDE) ?
get_colour(&s->colours, s->dlines[s->lineno - 1]) :
match_colour(&s->colours, line);
c = match_colour(&s->colours, line);
if (c && !(selected && s->sline == SLINE_MONO))
rx |= COLOR_PAIR(c->scheme);
if (c || selected)
wattron(view->window, rx);
if (s->first_line_onscreen + nprinted == s->matched_line &&
regmatch->rm_so >= 0 && regmatch->rm_so < regmatch->rm_eo) {
rc = draw_matched_line(view, line, &wstrlen,
view->ncols - col, 0, regmatch, rx);
} else if (view->pos.col < (etcount(line, linelen) - 1)) {
rc = draw_matched_line(view, &wstrlen, npad, regmatch,
rx);
if (rc) {
fsl_free(line);
return rc;
}
} else {
rc = formatln(&wcstr, &wstrlen, line,
view->pos.col + view->ncols - col, 0, true);
view->ncols - npad, npad, view->pos.col, true);
/* XXX Change above else if to else to use next line. */
/* if (view->pos.col < wstrlen) */
waddwstr(view->window, wcstr + view->pos.col);
if (rc) {
fsl_free(line);
return rc;
}
waddwstr(view->window, wcstr);
fsl_free(wcstr);
wcstr = NULL;
}
if (rc) {
fsl_free(line);
return rc;
}
col += MAX(wstrlen - view->pos.col, 0);
col = wstrlen + npad;
while (col++ < view->ncols)
waddch(view->window, ' ');
if (c || selected)
wattroff(view->window, rx);
if (++nprinted == 1)
s->first_line_onscreen = s->lineno;
|
︙ | | |
5793
5794
5795
5796
5797
5798
5799
5800
5801
5802
5803
5804
5805
5806
5807
5808
5809
5810
5811
5812
5813
5814
5815
5816
5817
5818
5819
5820
5821
5822
5823
5824
5825
5826
5827
5828
5829
5830
5831
5832
5833
5834
5835
5836
5837
5838
5839
5840
5841
5842
5843
5844
5845
5846
5847
5848
5849
5850
5851
5852
5853
5854
5855
5856
5857
5858
5859
5860
5861
5862
5863
5864
5865
5866
5867
5868
5869
5870
5871
|
5628
5629
5630
5631
5632
5633
5634
5635
5636
5637
5638
5639
5640
5641
5642
5643
5644
5645
5646
5647
5648
5649
5650
5651
5652
5653
5654
5655
5656
5657
5658
5659
5660
5661
5662
5663
5664
5665
5666
5667
5668
5669
5670
5671
5672
5673
5674
5675
5676
5677
5678
5679
5680
5681
5682
5683
5684
5685
5686
5687
5688
5689
5690
5691
5692
5693
5694
5695
5696
5697
5698
5699
5700
5701
5702
5703
5704
5705
5706
5707
5708
5709
5710
5711
5712
5713
5714
5715
5716
5717
5718
5719
5720
5721
5722
5723
5724
5725
5726
5727
5728
|
-
-
+
+
-
-
-
+
+
+
+
-
+
-
-
-
-
-
-
-
+
+
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
-
+
-
+
+
+
+
+
+
+
+
-
+
-
-
+
+
+
+
-
-
-
-
-
+
+
+
+
+
+
-
-
+
-
+
+
+
+
+
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
-
|
update_panels();
#endif
if (update)
doupdate();
}
static int
draw_matched_line(struct fnc_view *view, const char *line, int *col, int limit,
int offset, regmatch_t *regmatch, attr_t rx)
draw_matched_line(struct fnc_view *view, int *col, int offset,
regmatch_t *regmatch, attr_t rx)
{
wchar_t *wstr = NULL;
int rme, rms, skip = view->pos.col, wlen;
int n, rc = FSL_RC_OK;
wchar_t *wcstr;
char *s;
int rme, rms, skip = view->pos.col, wstrlen;
int n = 0, ncols_avail = view->ncols - offset, rc = 0;
attr_t hl = A_BOLD | A_REVERSE;
*col = n = 0;
*col = 0;
rms = regmatch->rm_so;
rme = regmatch->rm_eo;
rc = formatln(&wstr, &wlen, line, limit + view->pos.col,
offset, true);
if (rc)
return rc;
/*
* Draw to screen all chars up to string match. Trim preceding skip
* chars if scrolled right. Don't draw if skip consumes substring.
* Copy line up to string match and draw to screen. Trim preceding skip
* chars if scrolled right. Don't copy if skip consumes substring.
*/
n = MAX(rms - skip, 0);
if (n) {
waddnwstr(view->window, wstr + skip, n);
limit -= n;
*col += n;
s = fsl_strndup(view->line.buf + skip, MAX(rms - skip, 0));
if (s == NULL)
return RC(FSL_RC_ERROR, "%s", "fsl_strndup");
rc = formatln(&wcstr, &wstrlen, s, ncols_avail, offset, 0, false);
if (rc) {
free(s);
return rc;
}
waddwstr(view->window, wcstr);
free(wcstr);
free(s);
ncols_avail -= wstrlen;
*col += wstrlen;
}
/*
* Copy string match and draw with highlight. If skip traverses string
* match, trim n chars off the front. Don't copy if skip consumed match.
*/
if (limit > 0) {
if (ncols_avail > 0) {
int len = rme - rms;
n = 0;
if (skip > rms) {
n = skip - rms;
len = MAX(len - n, 0);
}
s = fsl_strndup(view->line.buf + rms + n, len);
if (s == NULL) {
rc = RC(FSL_RC_ERROR, "%s", "fsl_strndup");
free(s);
return rc;
}
rc = formatln(&wcstr, &wstrlen, s, ncols_avail, offset,
0, false);
if (len) {
if (rc) {
wattron(view->window,
COLOR_PAIR(FNC_COLOUR_HL_SEARCH) | hl);
free(s);
return rc;
}
wattron(view->window, COLOR_PAIR(FNC_COLOUR_HL_SEARCH) | hl);
waddnwstr(view->window, wstr + rms + n, len);
wattroff(view->window,
COLOR_PAIR(FNC_COLOUR_HL_SEARCH) | hl);
limit -= len;
*col += len;
waddwstr(view->window, wcstr);
wattroff(view->window, COLOR_PAIR(FNC_COLOUR_HL_SEARCH) | hl);
free(wcstr);
free(s);
ncols_avail -= wstrlen;
*col += wstrlen;
}
}
/*
* Write rest of line if not yet at EOL. If skip passes the end of
* string match, trim n chars off the front of substring.
*/
if (limit > 0 && skip < wlen) {
if (ncols_avail > 0 && view->line.sz > rme) {
n = 0;
if (skip > rme)
n = MIN(skip - rme, wlen - rme);
n = MIN(skip - rme, view->line.sz - rme);
rc = formatln(&wcstr, &wstrlen, view->line.buf + rme + n,
ncols_avail, offset, 0, false);
if (rc)
return rc;
wattron(view->window, rx);
waddnwstr(view->window, wstr + rme + n, limit);
/* *col += wlen - (rme + n) + view->pos.col; */
}
*col = wlen;
waddwstr(view->window, wcstr);
free(wcstr);
ncols_avail -= wstrlen;
*col += wstrlen;
while (--ncols_avail >= 0) {
++(*col);
waddch(view->window, ' ');
}
wattroff(view->window, rx);
}
free(wstr);
return rc;
}
static void
drawborder(struct fnc_view *view)
{
const struct fnc_view *view_above;
|
︙ | | |
5910
5911
5912
5913
5914
5915
5916
5917
5918
5919
5920
5921
5922
5923
5924
5925
5926
5927
5928
5929
5930
5931
5932
5933
5934
5935
5936
5937
5938
5939
5940
5941
5942
5943
5944
5945
5946
5947
5948
5949
5950
5951
|
5767
5768
5769
5770
5771
5772
5773
5774
5775
5776
5777
5778
5779
5780
5781
5782
5783
5784
5785
5786
5787
5788
5789
5790
5791
5792
5793
5794
5795
5796
5797
5798
5799
5800
5801
5802
5803
5804
5805
5806
|
-
+
-
+
-
-
+
-
|
s->lineno = s->first_line_onscreen - 1 + s->selected_line;
switch (ch) {
case '0':
view->pos.col = 0;
break;
case '$':
view->pos.col = MAX(s->maxx - view->ncols / 2, 0);
view->pos.col = s->maxx - view->ncols / 2;
break;
case KEY_RIGHT:
case 'l':
if (view->pos.col + view->ncols / 2 < s->maxx)
view->pos.col += 2;
break;
case KEY_LEFT:
case 'h':
view->pos.col -= MIN(view->pos.col, 2);
break;
case CTRL('p'):
if (s->selected_entry->diff_type == FNC_DIFF_WIKI ||
if (s->selected_commit->diff_type == FNC_DIFF_WIKI)
!s->index.lineno)
break;
if (!((size_t)s->lineno > s->index.lineno[s->index.n - 1])) {
if (s->index.idx == 0)
s->index.idx = s->index.n - 1;
else
--s->index.idx;
} else
s->index.idx = s->index.n - 1;
s->first_line_onscreen = s->index.lineno[s->index.idx];
s->selected_line = 1;
break;
case CTRL('n'):
if (s->selected_entry->diff_type == FNC_DIFF_WIKI ||
if (s->selected_commit->diff_type == FNC_DIFF_WIKI)
!s->index.lineno)
break;
if (!((size_t)s->lineno < s->index.lineno[0])) {
if (++s->index.idx == s->index.n)
s->index.idx = 0;
} else
s->index.idx = 0;
s->first_line_onscreen = s->index.lineno[s->index.idx];
|
︙ | | |
6049
6050
6051
6052
6053
6054
6055
6056
6057
6058
6059
6060
6061
6062
6063
6064
6065
6066
6067
6068
6069
6070
6071
6072
6073
6074
6075
6076
6077
6078
6079
6080
6081
6082
6083
6084
6085
6086
6087
6088
6089
6090
6091
|
5904
5905
5906
5907
5908
5909
5910
5911
5912
5913
5914
5915
5916
5917
5918
5919
5920
5921
5922
5923
5924
5925
5926
5927
5928
5929
5930
5931
5932
5933
5934
5935
5936
5937
5938
5939
5940
5941
5942
5943
5944
5945
5946
|
-
+
-
+
-
+
-
+
|
/*
* XXX Assume user would expect file navigation (C-n/p) to
* reset after jumping home.
*/
s->index.idx = 0;
break;
case 'F':
if (s->selected_entry->diff_type == FNC_DIFF_WIKI)
if (s->selected_commit->diff_type == FNC_DIFF_WIKI)
break;
fsl_buffer buf = fsl_buffer_empty;
struct input input;
char *end = fsl_mprintf(", ..., %d: ", s->index.n);
size_t maxwidth = view->ncols - 12;
uint32_t idx = 0;
fsl_buffer_append(&buf, "File ", -1);
while (++idx <= s->index.n && buf.used < maxwidth)
fsl_buffer_appendf(&buf,
"%d%s", idx, (idx + 1 < s->index.n ?
buf.used + 6 < maxwidth ?
", " : end : (idx < s->index.n ?
" or " : ": ")));
input = (struct input){(int []){1, s->index.n},
fsl_buffer_str(&buf), INPUT_NUMERIC, SR_CLREOL};
fsl_buffer_str(&buf), INPUT_NUMERIC, true};
rc = fnc_prompt_input(view, &input);
if (input.ret) {
s->index.idx = input.ret - 1;
s->first_line_onscreen = s->index.lineno[s->index.idx];
s->selected_line = 1;
}
fsl_buffer_clear(&buf);
fsl_free(end);
break;
case '@': {
case 'L': {
struct input input = {(int []){1, nlines}, "line: ",
INPUT_NUMERIC, SR_CLREOL};
INPUT_NUMERIC, true};
rc = fnc_prompt_input(view, &input);
s->gtl = input.ret;
break;
}
case '#':
s->showln = !s->showln;
break;
|
︙ | | |
6113
6114
6115
6116
6117
6118
6119
6120
6121
6122
6123
6124
6125
6126
6127
6128
6129
6130
6131
6132
6133
6134
6135
6136
6137
6138
6139
6140
6141
6142
6143
6144
6145
6146
6147
6148
6149
6150
|
5968
5969
5970
5971
5972
5973
5974
5975
5976
5977
5978
5979
5980
5981
5982
5983
5984
5985
5986
5987
5988
5989
5990
5991
|
-
-
-
-
-
-
-
-
-
-
+
+
-
-
-
-
-
-
-
-
-
-
+
+
+
+
|
view->focus_child = true;
} else
*new_view = branch_view;
break;
}
case 'c':
case 'i':
case 'L':
case 'p':
case 'S':
case 'v':
case 'w':
if (ch == 'c')
s->colour = !s->colour;
/* LSipvw key maps don't apply to tag or ticket artifacts. */
if (*s->selected_entry->type == 't' &&
(s->selected_entry->type[1] == 'a' ||
s->selected_entry->type[1] == 'i'))
break;
else if (ch == 'i')
FLAG_TOG(s->diff_flags, FNC_DIFF_INVERT);
if (ch == 'i')
FLAG_TOG(s->diff_flags, FSL_DIFF2_INVERT);
else if (ch == 'L')
FLAG_TOG(s->diff_flags, FNC_DIFF_LINENO);
else if (ch == 'p')
FLAG_TOG(s->diff_flags, FNC_DIFF_PROTOTYPE);
else if (ch == 'S')
FLAG_TOG(s->diff_flags, FNC_DIFF_SIDEBYSIDE);
else if (ch == 'v')
FLAG_TOG(s->diff_flags, FNC_DIFF_VERBOSE);
else if (ch == 'w')
FLAG_TOG(s->diff_flags, FNC_DIFF_IGNORE_ALLWS);
if (ch == 'v')
FLAG_TOG(s->diff_flags, FSL_DIFF_VERBOSE);
if (ch == 'w')
FLAG_TOG(s->diff_flags, FSL_DIFF2_IGNORE_ALLWS);
rc = reset_diff_view(view, true);
break;
case '-':
case '_':
if (s->context > 0) {
--s->context;
rc = reset_diff_view(view, true);
|
︙ | | |
6166
6167
6168
6169
6170
6171
6172
6173
6174
6175
6176
6177
6178
6179
6180
6181
6182
6183
6184
6185
6186
6187
6188
6189
6190
6191
6192
6193
6194
6195
6196
6197
6198
6199
6200
6201
6202
6203
6204
6205
6206
6207
6208
6209
6210
6211
6212
6213
6214
6215
6216
6217
6218
6219
6220
6221
6222
6223
6224
6225
6226
6227
6228
6229
6230
6231
6232
6233
6234
6235
6236
6237
|
6007
6008
6009
6010
6011
6012
6013
6014
6015
6016
6017
6018
6019
6020
6021
6022
6023
6024
6025
6026
6027
6028
6029
6030
6031
6032
6033
6034
6035
6036
6037
6038
6039
6040
6041
6042
6043
6044
6045
6046
6047
6048
6049
6050
6051
6052
6053
6054
6055
6056
6057
6058
6059
6060
6061
6062
6063
6064
6065
|
-
+
-
-
+
+
-
-
+
-
+
-
-
-
-
-
-
+
-
-
+
-
-
-
-
-
-
|
case CTRL('k'):
case '<':
case ',':
case 'K':
if (s->timeline_view == NULL)
break;
tlstate = &s->timeline_view->state.timeline;
previous_selection = tlstate->selected_entry;
previous_selection = tlstate->selected_commit;
rc = tl_input_handler(NULL, s->timeline_view, tl_down ?
KEY_DOWN : KEY_UP);
if ((rc = tl_input_handler(NULL, s->timeline_view,
tl_down ? KEY_DOWN : KEY_UP)))
if (rc)
break;
if (previous_selection == tlstate->selected_entry)
if (previous_selection == tlstate->selected_commit)
break;
rc = set_selected_commit(s, tlstate->selected_entry);
if ((rc = set_selected_commit(s, tlstate->selected_commit)))
if (rc)
break;
s->selected_line = 1;
reset_diff_view(view, false);
break;
default:
break;
}
return rc;
}
static int
reset_diff_view(struct fnc_view *view, bool stay)
{
struct fnc_diff_view_state *s = &view->state.diff;
int n, rc = FSL_RC_OK;
n = s->nlines;
free_index(&s->index);
fsl_free(s->dlines);
s->dlines = NULL;
s->ndlines = 0;
show_diff_status(view);
rc = create_diff(s);
if (rc)
return rc;
if (stay) {
float scale = (float)s->first_line_onscreen / n;
s->first_line_onscreen = MAX(1, (int)(s->nlines * scale));
} else {
s->first_line_onscreen = 1;
view->pos.col = 0;
}
s->matched_line = 0;
s->last_line_onscreen = MIN(s->nlines,
s->last_line_onscreen = s->first_line_onscreen + view->nlines;
(size_t)s->first_line_onscreen + view->nlines);
s->selected_line = MIN(s->selected_line,
s->matched_line = 0;
s->last_line_onscreen - s->first_line_onscreen + 1);
/*
* If max width has reduced (i.e., user switched from SBS to unidiff),
* and col position is beyond new max, move back to within line limits.
*/
view->pos.col = MAX(MIN(view->pos.col, s->maxx - view->ncols / 2), 0);
return rc;
}
static int
request_tl_commits(struct fnc_view *view)
{
|
︙ | | |
6250
6251
6252
6253
6254
6255
6256
6257
6258
6259
6260
6261
6262
6263
6264
|
6078
6079
6080
6081
6082
6083
6084
6085
6086
6087
6088
6089
6090
6091
6092
|
-
+
|
{
fsl_free(s->id2);
s->id2 = fsl_strdup(entry->commit->uuid);
if (s->id2 == NULL)
return RC(FSL_RC_ERROR, "%s", "fsl_strdup");
fsl_free(s->id1);
s->id1 = entry->commit->puuid ? fsl_strdup(entry->commit->puuid) : NULL;
s->selected_entry = entry->commit;
s->selected_commit = entry->commit;
return 0;
}
static void
diff_grep_init(struct fnc_view *view)
{
|
︙ | | |
6272
6273
6274
6275
6276
6277
6278
6279
6280
6281
6282
6283
6284
6285
6286
6287
6288
6289
6290
6291
|
6100
6101
6102
6103
6104
6105
6106
6107
6108
6109
6110
6111
6112
6113
6114
6115
6116
6117
6118
|
-
-
+
-
+
|
{
FILE *f = NULL;
off_t *line_offsets = NULL;
ssize_t linelen;
size_t nlines = 0, linesz = 0;
int *first, *last, *match, *selected;
int lineno;
uint8_t col = 0;
char *exstr = NULL, *line = NULL;
char *line = NULL;
first = last = match = selected = NULL;
grep_set_view(view, &f, &line_offsets, &nlines, &first, &last,
&match, &selected, &col);
&match, &selected);
if (view->searching == SEARCH_DONE) {
view->search_status = SEARCH_CONTINUE;
return 0;
}
if (*match) {
|
︙ | | |
6317
6318
6319
6320
6321
6322
6323
6324
6325
6326
6327
6328
6329
6330
6331
6332
6333
6334
6335
6336
6337
6338
6339
6340
6341
6342
6343
6344
6345
6346
6347
6348
6349
6350
6351
6352
6353
6354
6355
6356
6357
6358
6359
6360
6361
6362
6363
6364
6365
6366
6367
6368
6369
6370
6371
6372
6373
6374
6375
6376
6377
6378
6379
6380
6381
6382
6383
6384
6385
6386
6387
6388
6389
6390
6391
6392
6393
6394
6395
6396
6397
6398
6399
6400
6401
6402
6403
6404
6405
6406
6407
6408
6409
6410
6411
6412
6413
6414
6415
6416
6417
6418
6419
6420
6421
6422
6423
6424
6425
6426
6427
6428
6429
6430
6431
6432
6433
6434
6435
6436
6437
6438
6439
6440
6441
6442
6443
6444
6445
6446
6447
6448
6449
6450
6451
6452
6453
6454
6455
6456
6457
6458
6459
6460
6461
6462
6463
6464
6465
6466
|
6144
6145
6146
6147
6148
6149
6150
6151
6152
6153
6154
6155
6156
6157
6158
6159
6160
6161
6162
6163
6164
6165
6166
6167
6168
6169
6170
6171
6172
6173
6174
6175
6176
6177
6178
6179
6180
6181
6182
6183
6184
6185
6186
6187
6188
6189
6190
6191
6192
6193
6194
6195
6196
6197
6198
6199
6200
6201
6202
6203
6204
6205
6206
6207
6208
6209
6210
6211
6212
6213
6214
6215
6216
6217
6218
6219
6220
6221
6222
6223
6224
6225
6226
6227
6228
6229
6230
6231
6232
6233
6234
6235
6236
6237
6238
6239
6240
6241
6242
6243
6244
6245
6246
6247
6248
6249
6250
6251
|
+
-
+
+
+
+
-
-
+
+
-
+
-
+
-
-
-
-
-
-
-
-
+
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
|
offset = line_offsets[lineno - 1];
if (fseeko(f, offset, SEEK_SET) != 0) {
fsl_free(line);
return RC(fsl_errno_to_rc(errno, FSL_RC_IO),
"%s", "fseeko");
}
/*
/* Expand tabs for accurate rm_so/rm_eo offsets. */
* Expand tabs for accurate rm_so/rm_eo offsets, and save to
* view->line so we don't have to expand when drawing matches.
*/
linelen = getline(&line, &linesz, f);
view->line.sz = expand_tab(view->line.buf,
expand_tab(&exstr, line, linelen);
if (linelen != -1 && regexec(&view->regex, exstr, 1,
sizeof(view->line.buf), line, linelen);
if (linelen != -1 && regexec(&view->regex, view->line.buf, 1,
&view->regmatch, 0) == 0) {
int *pos = &view->pos.col;
view->search_status = SEARCH_CONTINUE;
*match = lineno;
while (view->pos.col > view->regmatch.rm_so)
/* Scroll till on-screen. */
--view->pos.col; /* Scroll till on-screen. */
while (*pos > view->regmatch.rm_so)
--(*pos);
while (*pos + view->ncols < view->regmatch.rm_eo + col)
++(*pos);
break;
}
fsl_free(exstr);
exstr = NULL;
if (view->searching == SEARCH_FORWARD)
++lineno;
else
--lineno;
}
fsl_free(line);
fsl_free(exstr);
/*
* If match is on current screen, move to it and highlight; else,
* scroll view till matching line is ~1/3rd from the top and highlight.
*/
if (*match) {
if (*match >= *first && *match <= *last)
*selected = *match - *first + 1;
else {
*first = MAX(*match - view->nlines / 3, 1);
*selected = *match - *first + 1;
}
}
return FSL_RC_OK;
}
static void
grep_set_view(struct fnc_view *view, FILE **f, off_t **line_offsets,
size_t *nlines, int **first, int **last, int **match, int **selected,
size_t *nlines, int **first, int **last, int **match, int **selected)
uint8_t *startx)
{
if (view->vid == FNC_VIEW_DIFF) {
struct fnc_diff_view_state *s = &view->state.diff;
*f = s->f;
*nlines = s->nlines;
*line_offsets = s->line_offsets;
*match = &s->matched_line;
*first = &s->first_line_onscreen;
*last = &s->last_line_onscreen;
*selected = &s->selected_line;
if (s->showln) {
int d = s->nlines, n = 0;
ndigits(n, d);
*startx = n + 3; /* {ap,pre}pended ' ' + line sep */
}
} else if (view->vid == FNC_VIEW_BLAME) {
struct fnc_blame_view_state *s = &view->state.blame;
*f = s->blame.f;
*nlines = s->blame.nlines;
*line_offsets = s->blame.line_offsets;
*match = &s->matched_line;
*first = &s->first_line_onscreen;
*last = &s->last_line_onscreen;
*selected = &s->selected_line;
if (s->showln) {
int d = s->blame.nlines, n = 0;
ndigits(n, d);
*startx = n + 3; /* {ap,pre}pended ' ' + line sep */
}
*startx += 11; /* id field */
}
}
static int
close_diff_view(struct fnc_view *view)
{
struct fnc_diff_view_state *s = &view->state.diff;
int rc = 0;
if (s->f && fclose(s->f) == EOF)
rc = RC(fsl_errno_to_rc(errno, FSL_RC_IO), "%s", "fclose");
fsl_free(s->id1);
s->id1 = NULL;
fsl_free(s->id2);
s->id2 = NULL;
fsl_free(s->line_offsets);
free_colours(&s->colours);
s->line_offsets = NULL;
s->nlines = 0;
free_index(&s->index);
fsl_free(s->dlines);
s->dlines = NULL;
return rc;
}
static void
free_index(struct index *index)
{
index->idx = 0;
index->n = 0;
fsl_free(index->lineno);
index->lineno = NULL;
fsl_free(index->offset);
index->offset = NULL;
}
static void
free_tags(struct fnc_tl_view_state *s, bool restore)
{
if (!s->tagged.ogrid)
return;
/* Restore timeline commit queue entry. */
if (restore) {
fsl_free(s->selected_entry->commit->puuid);
s->selected_entry->commit->puuid = fsl_strdup(s->tagged.ogid);
s->selected_entry->commit->prid = s->tagged.ogrid;
s->selected_entry->commit->diff_type = FNC_DIFF_COMMIT;
fsl_free(s->tagged.ogid);
s->tagged.ogid = NULL;
s->tagged.ogrid = 0;
s->showmeta = true;
}
fsl_free(s->tagged.type);
s->tagged.type = NULL;
fsl_free(s->tagged.id);
s->tagged.id = NULL;
s->tagged.rid = 0;
}
static void
fnc_resizeterm(void)
{
struct winsize size;
int cols, lines;
if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &size) < 0) {
|
︙ | | |
6625
6626
6627
6628
6629
6630
6631
6632
6633
6634
6635
6636
6637
6638
6639
6640
6641
6642
6643
6644
6645
6646
6647
6648
6649
6650
6651
6652
6653
6654
6655
6656
6657
6658
6659
6660
6661
|
6410
6411
6412
6413
6414
6415
6416
6417
6418
6419
6420
6421
6422
6423
6424
6425
6426
6427
6428
6429
6430
6431
6432
6433
6434
6435
6436
6437
6438
6439
6440
6441
6442
6443
6444
6445
|
-
-
-
-
+
+
+
-
+
|
}
static void
usage_diff(void)
{
fsl_fprintf(fnc_init.err ? stderr : stdout,
" usage: %s diff [-C|--no-colour] [-R path] [-h|--help] "
"[-i|--invert] [-l|--line-numbers] [-q|--quiet] [-s|--sbs] "
"[-w|--whitespace] [-x|--context n] [artifact1 [artifact2]] "
"[path ...]\n"
" e.g.: %s diff --sbs d34db33f c0ff33 src/*.c\n\n",
"[-i|--invert] [-q|--quiet] [-w|--whitespace] [-x|--context n] "
"[artifact1 [artifact2]] [path ...]\n "
"e.g.: %s diff --context 3 d34db33f c0ff33 src/*.c\n\n",
fcli_progname(), fcli_progname());
}
static void
usage_tree(void)
{
fsl_fprintf(fnc_init.err ? stderr : stdout,
" usage: %s tree [-C|--no-colour] [-R path] [-c commit] [-h|--help]"
" [path]\n"
" e.g.: %s tree -c d34dc0d3\n\n" ,
fcli_progname(), fcli_progname());
}
static void
usage_blame(void)
{
fsl_fprintf(fnc_init.err ? stderr : stdout,
" usage: %s blame [-C|--no-colour] [-R path] [-c commit [-r]] "
"[-h|--help] [-l lineno] [-n n] path\n"
"[-h|--help] [-n n] path\n"
" e.g.: %s blame -c d34db33f src/foo.c\n\n" ,
fcli_progname(), fcli_progname());
}
static void
usage_branch(void)
{
|
︙ | | |
6669
6670
6671
6672
6673
6674
6675
6676
6677
6678
6679
6680
6681
6682
6683
|
6453
6454
6455
6456
6457
6458
6459
6460
6461
6462
6463
6464
6465
6466
6467
|
-
+
|
static void
usage_config(void)
{
fsl_fprintf(fnc_init.err ? stderr : stdout,
" usage: %s config [-R path] [-h|--help] [--ls] "
"[setting [value|--unset]]\n"
" e.g.: %s config FNC_COLOUR_COMMIT blue\n\n" ,
" e.g.: %s config FNC_DIFF_COMMIT blue\n\n" ,
fcli_progname(), fcli_progname());
}
static int
cmd_diff(fcli_command const *argv)
{
fsl_cx *const f = fcli_cx();
|
︙ | | |
6831
6832
6833
6834
6835
6836
6837
6838
6839
6840
6841
6842
6843
6844
6845
6846
6847
6848
6849
6850
6851
6852
6853
6854
6855
6856
6857
6858
6859
6860
6861
6862
6863
6864
6865
6866
6867
|
6615
6616
6617
6618
6619
6620
6621
6622
6623
6624
6625
6626
6627
6628
6629
6630
6631
6632
6633
6634
6635
6636
6637
6638
6639
6640
6641
6642
6643
6644
6645
6646
6647
6648
6649
6650
|
+
-
+
+
-
-
-
+
-
-
+
+
-
|
commit->type = fsl_strdup("blob");
commit->diff_type = diff_type;
}
rc = init_curses();
if (rc)
goto end;
#ifdef __OpenBSD__
rc = init_unveil(REPODB, CKOUTDIR, false);
rc = init_unveil(fsl_cx_db_file_repo(f, NULL),
fsl_cx_ckout_dir_name(f, NULL), false);
if (rc)
goto end;
rc = init_landlock((const char*[]){REPODIR, CKOUTDIR, P_tmpdir}, 3);
if (rc)
goto end;
#endif
if (fnc_init.context) {
if ((rc = strtonumcheck(&context, fnc_init.context, INT_MIN,
INT_MAX)))
goto end;
context = MIN(MAX_DIFF_CTX, context);
}
view = view_open(0, 0, 0, 0, FNC_VIEW_DIFF);
if (view == NULL) {
rc = RC(FSL_RC_ERROR, "%s", "view_open");
goto end;
}
rc = open_diff_view(view, commit, context, fnc_init.sbs, fnc_init.ws,
fnc_init.invert, !fnc_init.quiet, fnc_init.showln, NULL,
rc = open_diff_view(view, commit, context, fnc_init.ws,
fnc_init.invert, !fnc_init.quiet, NULL, showmeta, &paths);
showmeta, &paths);
if (!rc)
rc = view_loop(view);
end:
fsl_free(path0);
fsl_deck_finalize(&d);
fsl_stmt_finalize(q);
if (commit)
|
︙ | | |
6944
6945
6946
6947
6948
6949
6950
6951
6952
6953
6954
6955
6956
6957
6958
6959
6960
6961
6962
6963
|
6727
6728
6729
6730
6731
6732
6733
6734
6735
6736
6737
6738
6739
6740
6741
6742
6743
6744
6745
6746
|
+
-
+
+
-
-
-
+
|
fcli_progname());
goto end;
}
rc = init_curses();
if (rc)
goto end;
#ifdef __OpenBSD__
rc = init_unveil(REPODB, CKOUTDIR, false);
rc = init_unveil(fsl_cx_db_file_repo(f, NULL),
fsl_cx_ckout_dir_name(f, NULL), false);
if (rc)
goto end;
rc = init_landlock((const char*[]){REPODIR, CKOUTDIR, P_tmpdir}, 3);
if (rc)
goto end;
#endif
view = view_open(0, 0, 0, 0, FNC_VIEW_TREE);
if (view == NULL) {
RC(FSL_RC_ERROR, "%s", "view_open");
goto end;
}
|
︙ | | |
7477
7478
7479
7480
7481
7482
7483
7484
7485
7486
7487
7488
7489
7490
7491
|
7260
7261
7262
7263
7264
7265
7266
7267
7268
7269
7270
7271
7272
7273
7274
7275
|
-
+
+
|
s->ndisplayed = 0;
werase(view->window);
if (limit == 0)
return rc;
/* Write (highlighted) headline (if view is active in splitscreen). */
rc = formatln(&wcstr, &wstrlen, s->tree_label, view->ncols, 0, false);
rc = formatln(&wcstr, &wstrlen, s->tree_label, view->ncols, 0, 0,
false);
if (rc)
return rc;
if (screen_is_shared(view))
wattron(view->window, A_REVERSE);
if (s->colour)
c = get_colour(&s->colours, FNC_COLOUR_COMMIT);
if (c)
|
︙ | | |
7501
7502
7503
7504
7505
7506
7507
7508
7509
7510
7511
7512
7513
7514
7515
7516
7517
7518
7519
7520
7521
7522
7523
7524
7525
7526
7527
7528
7529
7530
7531
7532
7533
7534
7535
7536
7537
|
7285
7286
7287
7288
7289
7290
7291
7292
7293
7294
7295
7296
7297
7298
7299
7300
7301
7302
7303
7304
7305
7306
7307
7308
7309
7310
7311
7312
7313
7314
7315
7316
7317
7318
7319
7320
7321
|
-
+
-
+
-
+
|
wattroff(view->window, A_REVERSE);
fsl_free(wcstr);
wcstr = NULL;
if (--limit <= 0)
return rc;
/* Write this (sub)tree's absolute repository path subheader. */
rc = formatln(&wcstr, &wstrlen, treepath, view->ncols, 0, false);
rc = formatln(&wcstr, &wstrlen, treepath, view->ncols, 0, 0, false);
if (rc)
return rc;
waddwstr(view->window, wcstr);
fsl_free(wcstr);
wcstr = NULL;
if (wstrlen < view->ncols - 1)
waddch(view->window, '\n');
if (--limit <= 0)
return rc;
waddch(view->window, '\n');
if (--limit <= 0)
return rc;
/* Write parent dir entry (i.e., "..") if top of the tree is in view. */
if (s->first_entry_onscreen == NULL) {
te = &s->tree->entries[0];
if (s->selected == 0) {
if (s->selected_idx == 0) {
wattr_on(view->window, A_REVERSE, NULL);
s->selected_entry = NULL;
}
waddstr(view->window, " ..\n");
if (s->selected == 0)
if (s->selected_idx == 0)
wattr_off(view->window, A_REVERSE, NULL);
++s->ndisplayed;
if (--limit <= 0)
return rc;
n = 1;
} else {
n = 0;
|
︙ | | |
7602
7603
7604
7605
7606
7607
7608
7609
7610
7611
7612
7613
7614
7615
7616
7617
7618
7619
7620
7621
7622
7623
7624
7625
7626
7627
7628
7629
7630
7631
7632
7633
7634
|
7386
7387
7388
7389
7390
7391
7392
7393
7394
7395
7396
7397
7398
7399
7400
7401
7402
7403
7404
7405
7406
7407
7408
7409
7410
7411
7412
7413
7414
7415
7416
7417
7418
|
-
+
-
+
-
+
|
*iso8601 ? iso8601 : "", te->basename, modestr,
targetlnk ? " -> ": "", targetlnk ? targetlnk : "");
fsl_free(idstr);
fsl_free(targetlnk);
if (rc || line == NULL)
return RC(rc ? rc : FSL_RC_RANGE, "%s",
rc ? "fsl_julian_to_iso8601" : "fsl_mprintf");
rc = formatln(&wcstr, &wstrlen, line, view->ncols, 0, false);
rc = formatln(&wcstr, &wstrlen, line, view->ncols, 0, 0, false);
if (rc) {
fsl_free(line);
break;
}
if (n == s->selected) {
if (n == s->selected_idx) {
wattr_on(view->window, A_REVERSE, NULL);
s->selected_entry = te;
}
if (s->colour)
c = match_colour(&s->colours, line);
if (c)
wattr_on(view->window, COLOR_PAIR(c->scheme), NULL);
waddwstr(view->window, wcstr);
if (c)
wattr_off(view->window, COLOR_PAIR(c->scheme), NULL);
if (wstrlen < view->ncols)
waddch(view->window, '\n');
if (n == s->selected)
if (n == s->selected_idx)
wattr_off(view->window, A_REVERSE, NULL);
fsl_free(line);
fsl_free(wcstr);
wcstr = NULL;
++n;
++s->ndisplayed;
s->last_entry_onscreen = te;
|
︙ | | |
7760
7761
7762
7763
7764
7765
7766
7767
7768
7769
7770
7771
7772
7773
7774
7775
7776
7777
7778
7779
7780
7781
7782
7783
7784
7785
7786
7787
7788
7789
7790
7791
7792
7793
7794
7795
7796
7797
7798
7799
7800
7801
7802
7803
7804
7805
7806
7807
7808
7809
7810
7811
7812
7813
7814
7815
7816
7817
7818
7819
7820
7821
7822
7823
7824
7825
7826
7827
7828
7829
7830
7831
7832
7833
7834
7835
7836
7837
7838
7839
7840
7841
7842
7843
7844
7845
|
7544
7545
7546
7547
7548
7549
7550
7551
7552
7553
7554
7555
7556
7557
7558
7559
7560
7561
7562
7563
7564
7565
7566
7567
7568
7569
7570
7571
7572
7573
7574
7575
7576
7577
7578
7579
7580
7581
7582
7583
7584
7585
7586
7587
7588
7589
7590
7591
7592
7593
7594
7595
7596
7597
7598
7599
7600
7601
7602
7603
7604
7605
7606
7607
7608
7609
7610
7611
7612
7613
7614
7615
7616
7617
7618
7619
7620
7621
7622
7623
7624
7625
7626
7627
7628
7629
|
-
+
-
+
-
+
-
-
+
+
-
-
+
+
-
-
-
+
+
+
-
+
-
+
|
*new_view = timeline_view;
break;
case 'g':
if (!fnc_home(view))
break;
/* FALL THROUGH */
case KEY_HOME:
s->selected = 0;
s->selected_idx = 0;
if (s->tree == s->root)
s->first_entry_onscreen = &s->tree->entries[0];
else
s->first_entry_onscreen = NULL;
break;
case KEY_END:
case 'G':
s->selected = 0;
s->selected_idx = 0;
te = &s->tree->entries[s->tree->nentries - 1];
for (n = 0; n < view->nlines - 3; ++n) {
if (te == NULL) {
if(s->tree != s->root) {
s->first_entry_onscreen = NULL;
++n;
}
break;
}
s->first_entry_onscreen = te;
te = get_tree_entry(s->tree, te->idx - 1);
}
if (n > 0)
s->selected = n - 1;
s->selected_idx = n - 1;
break;
case KEY_DOWN:
case 'j':
if (s->selected < s->ndisplayed - 1) {
++s->selected;
if (s->selected_idx < s->ndisplayed - 1) {
++s->selected_idx;
break;
}
if (get_tree_entry(s->tree, s->last_entry_onscreen->idx + 1)
== NULL)
break; /* Reached last entry. */
tree_scroll_down(view, 1);
break;
case KEY_UP:
case 'k':
if (s->selected > 0) {
--s->selected;
if (s->selected_idx > 0) {
--s->selected_idx;
break;
}
tree_scroll_up(s, 1);
break;
case CTRL('d'):
nscroll >>= 1;
/* FALL THROUGH */
case KEY_NPAGE:
case CTRL('f'):
if (get_tree_entry(s->tree, s->last_entry_onscreen->idx + 1)
== NULL) {
/*
* When the last entry on screen is the last node in the
* tree move cursor to it instead of scrolling the view.
*/
if (s->selected < s->ndisplayed - 1)
s->selected += MIN(nscroll,
s->ndisplayed - s->selected - 1);
if (s->selected_idx < s->ndisplayed - 1)
s->selected_idx += MIN(nscroll,
s->ndisplayed - s->selected_idx - 1);
break;
}
tree_scroll_down(view, nscroll);
break;
case CTRL('u'):
nscroll >>= 1;
/* FALL THROUGH */
case KEY_PPAGE:
case CTRL('b'):
if (s->tree == s->root) {
if (&s->tree->entries[0] == s->first_entry_onscreen)
s->selected -= MIN(s->selected, nscroll);
s->selected_idx -= MIN(s->selected_idx, nscroll);
} else {
if (s->first_entry_onscreen == NULL)
s->selected -= MIN(s->selected, nscroll);
s->selected_idx -= MIN(s->selected_idx, nscroll);
}
tree_scroll_up(s, nscroll);
break;
case KEY_BACKSPACE:
case KEY_ENTER:
case KEY_LEFT:
case KEY_RIGHT:
|
︙ | | |
7860
7861
7862
7863
7864
7865
7866
7867
7868
7869
7870
7871
7872
7873
7874
7875
7876
7877
7878
7879
7880
7881
7882
7883
7884
7885
7886
7887
7888
7889
7890
7891
7892
7893
7894
7895
7896
|
7644
7645
7646
7647
7648
7649
7650
7651
7652
7653
7654
7655
7656
7657
7658
7659
7660
7661
7662
7663
7664
7665
7666
7667
7668
7669
7670
7671
7672
7673
7674
7675
7676
7677
7678
7679
7680
|
-
-
+
+
-
-
+
+
|
parent = TAILQ_FIRST(&s->parents);
TAILQ_REMOVE(&s->parents, parent,
entry);
fnc_object_tree_close(s->tree);
s->tree = parent->tree;
s->first_entry_onscreen = parent->first_entry_onscreen;
s->selected_entry = parent->selected_entry;
s->selected = parent->selected;
if (s->selected > view->nlines - 3)
s->selected_idx = parent->selected_idx;
if (s->selected_idx > view->nlines - 3)
offset_selected_line(view);
fsl_free(parent);
} else if (s->selected_entry != NULL &&
S_ISDIR(s->selected_entry->mode)) {
struct fnc_tree_object *subtree = NULL;
rc = tree_builder(s->repo, &subtree,
s->selected_entry->path);
if (rc)
break;
rc = visit_subtree(s, subtree);
if (rc) {
fnc_object_tree_close(subtree);
break;
}
} else if (s->selected_entry != NULL &&
S_ISREG(s->selected_entry->mode))
rc = blame_selected_file(new_view, view);
break;
case KEY_RESIZE:
if (view->nlines >= 4 && s->selected >= view->nlines - 3)
s->selected = view->nlines - 4;
if (view->nlines >= 4 && s->selected_idx >= view->nlines - 3)
s->selected_idx = view->nlines - 4;
break;
default:
break;
}
return rc;
}
|
︙ | | |
7906
7907
7908
7909
7910
7911
7912
7913
7914
7915
7916
7917
7918
7919
7920
7921
|
7690
7691
7692
7693
7694
7695
7696
7697
7698
7699
7700
7701
7702
7703
7704
7705
|
-
-
+
+
|
fid = fsl_uuid_to_rid(f, s->selected_entry->uuid);
rc = fsl_content_get(f, fid, &buf);
if (rc)
goto end;
if (fsl_looks_like_binary(&buf))
sitrep(view, "-- cannot blame binary file --",
SR_UPDATE | SR_SLEEP);
fnc_print_msg(view, "-- cannot blame binary file --", false,
true, true);
else
rc = request_view(new_view, view, FNC_VIEW_BLAME);
end:
fsl_buffer_clear(&buf);
return rc;
}
|
︙ | | |
8003
8004
8005
8006
8007
8008
8009
8010
8011
8012
8013
8014
8015
8016
8017
8018
8019
8020
|
7787
7788
7789
7790
7791
7792
7793
7794
7795
7796
7797
7798
7799
7800
7801
7802
7803
7804
|
-
+
-
+
|
parent = calloc(1, sizeof(*parent));
if (parent == NULL)
return RC(fsl_errno_to_rc(errno, FSL_RC_ERROR), "%s", "calloc");
parent->tree = s->tree;
parent->first_entry_onscreen = s->first_entry_onscreen;
parent->selected_entry = s->selected_entry;
parent->selected = s->selected;
parent->selected_idx = s->selected_idx;
TAILQ_INSERT_HEAD(&s->parents, parent, entry);
s->tree = subtree;
s->selected = 0;
s->selected_idx = 0;
s->first_entry_onscreen = NULL;
return 0;
}
static int
blame_tree_entry(struct fnc_view **new_view, int start_col, int start_ln,
|
︙ | | |
8033
8034
8035
8036
8037
8038
8039
8040
8041
8042
8043
8044
8045
8046
8047
|
7817
7818
7819
7820
7821
7822
7823
7824
7825
7826
7827
7828
7829
7830
7831
|
-
+
|
blame_view = view_open(0, 0, start_ln, start_col, FNC_VIEW_BLAME);
if (blame_view == NULL) {
rc = RC(FSL_RC_ERROR, "%s", "view_open");
goto end;
}
rc = open_blame_view(blame_view, path, commit_id, 0, 0, NULL);
rc = open_blame_view(blame_view, path, commit_id, 0, 0);
if (rc)
view_close(blame_view);
else
*new_view = blame_view;
end:
fsl_free(path);
return rc;
|
︙ | | |
8116
8117
8118
8119
8120
8121
8122
8123
8124
8125
8126
8127
8128
8129
8130
8131
8132
8133
8134
|
7900
7901
7902
7903
7904
7905
7906
7907
7908
7909
7910
7911
7912
7913
7914
7915
7916
7917
7918
|
-
+
-
+
|
if (s->matched_entry) {
int idx = s->matched_entry->idx;
bool parent = !s->first_entry_onscreen;
if (idx >= (parent ? 0 : s->first_entry_onscreen->idx) &&
idx <= s->last_entry_onscreen->idx)
s->selected = idx - (parent ? - 1 :
s->selected_idx = idx - (parent ? - 1 :
s->first_entry_onscreen->idx);
else {
s->first_entry_onscreen = s->matched_entry;
s->selected = 0;
s->selected_idx = 0;
}
}
return rc;
}
static int
|
︙ | | |
8191
8192
8193
8194
8195
8196
8197
8198
8199
8200
8201
8202
8203
8204
8205
8206
8207
8208
8209
8210
8211
8212
8213
8214
8215
8216
8217
8218
8219
8220
8221
8222
8223
8224
8225
8226
8227
8228
8229
8230
8231
8232
8233
8234
8235
8236
8237
8238
8239
8240
8241
8242
8243
8244
8245
8246
8247
8248
8249
8250
8251
8252
|
7975
7976
7977
7978
7979
7980
7981
7982
7983
7984
7985
7986
7987
7988
7989
7990
7991
7992
7993
7994
7995
7996
7997
7998
7999
8000
8001
8002
8003
8004
8005
8006
8007
8008
8009
8010
8011
8012
8013
8014
8015
8016
8017
8018
8019
8020
8021
8022
8023
8024
8025
8026
8027
8028
8029
8030
8031
8032
8033
8034
8035
8036
8037
8038
8039
|
-
+
-
+
+
+
+
+
-
+
+
-
-
+
-
|
}
if (s->tree != NULL && s->tree != s->root)
fnc_object_tree_close(s->tree);
if (s->root)
fnc_object_tree_close(s->root);
if (s->repo)
fnc_close_repo_tree(s->repo);
fnc_close_repository_tree(s->repo);
return 0;
}
static void
fnc_object_tree_close(struct fnc_tree_object *tree)
{
int idx;
for (idx = 0; idx < tree->nentries; ++idx) {
fsl_free(tree->entries[idx].basename);
fsl_free(tree->entries[idx].path);
fsl_free(tree->entries[idx].uuid);
}
fsl_free(tree->entries);
fsl_free(tree);
}
static void
fnc_close_repo_tree(struct fnc_repository_tree *repo)
fnc_close_repository_tree(struct fnc_repository_tree *repo)
{
struct fnc_repo_tree_node *next, *tn;
tn = repo->head;
while (tn) {
next = tn->next;
fsl_free(tn);
tn = next;
}
fsl_free(repo);
}
static int
cmd_config(const fcli_command *argv)
{
const char *opt = NULL, *value = NULL;
char *prev, *v;
enum fnc_opt_id setid;
int rc = FSL_RC_OK;
#ifdef __OpenBSD__
const fsl_cx *const f = fcli_cx();
fsl_buffer buf = fsl_buffer_empty;
fsl_file_dirpart(fsl_cx_db_file_repo(f, NULL), -1, &buf, false);
rc = init_unveil(REPODIR, CKOUTDIR, true);
rc = init_unveil(fsl_buffer_cstr(&buf), fsl_cx_ckout_dir_name(f, NULL),
true);
if (rc)
return rc;
rc = init_landlock((const char*[]){REPODIR, CKOUTDIR, P_tmpdir}, 3);
if (rc)
#endif
return rc;
rc = fcli_process_flags(argv->flags);
if (rc || (rc = fcli_has_unused_flags(false)))
return rc;
opt = fcli_next_arg(true);
if (opt == NULL || fnc_init.lsconf) {
|
︙ | | |
8375
8376
8377
8378
8379
8380
8381
8382
8383
8384
8385
8386
8387
8388
8389
8390
8391
8392
8393
8394
8395
8396
8397
8398
8399
8400
8401
8402
8403
8404
8405
|
8162
8163
8164
8165
8166
8167
8168
8169
8170
8171
8172
8173
8174
8175
8176
8177
8178
8179
8180
8181
8182
8183
8184
8185
|
-
+
-
-
-
-
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
-
|
int rc = FSL_RC_OK;
switch (vid) {
case FNC_VIEW_DIFF: {
static const char *regexp_diff[] = {
"^((checkin|wiki|ticket|technote) "
"[0-9a-f]|hash [+-] |\\[[+~>-]] |[+-]{3} )",
"^user:", "^date:", "^tags:", "^-|^[0-9 ]+ -",
"^user:", "^date:", "^tags:", "^-", "^\\+", "^@@"
"^\\+|^[0-9 ]+ \\+", "^@@",
/*
* XXX Ugly hack to fail matching _DIFF_SBS_EDIT early
* until all diff modes use the new line_type interface.
*/
"a^"
};
const int pairs_diff[][2] = {
{LINE_DIFF_META, init_colour(FNC_COLOUR_DIFF_META)},
{LINE_DIFF_USER, init_colour(FNC_COLOUR_USER)},
{LINE_DIFF_DATE, init_colour(FNC_COLOUR_DATE)},
{LINE_DIFF_TAGS, init_colour(FNC_COLOUR_DIFF_TAGS)},
{LINE_DIFF_MINUS, init_colour(FNC_COLOUR_DIFF_MINUS)},
{LINE_DIFF_PLUS, init_colour(FNC_COLOUR_DIFF_PLUS)},
{LINE_DIFF_CHUNK, init_colour(FNC_COLOUR_DIFF_CHUNK)},
{FNC_COLOUR_DIFF_META, init_colour(FNC_COLOUR_DIFF_META)},
{FNC_COLOUR_USER, init_colour(FNC_COLOUR_USER)},
{FNC_COLOUR_DATE, init_colour(FNC_COLOUR_DATE)},
{FNC_COLOUR_DIFF_TAGS, init_colour(FNC_COLOUR_DIFF_TAGS)},
{FNC_COLOUR_DIFF_MINUS, init_colour(FNC_COLOUR_DIFF_MINUS)},
{FNC_COLOUR_DIFF_PLUS, init_colour(FNC_COLOUR_DIFF_PLUS)},
{FNC_COLOUR_DIFF_CHUNK, init_colour(FNC_COLOUR_DIFF_CHUNK)}
{LINE_DIFF_EDIT, init_colour(FNC_COLOUR_DIFF_SBS_EDIT)}
};
rc = set_colour_scheme(s, pairs_diff, regexp_diff,
nitems(regexp_diff));
break;
}
case FNC_VIEW_TREE: {
static const char *regexp_tree[] = {"@ ->", "/$", "\\*$", "^$"};
|
︙ | | |
8588
8589
8590
8591
8592
8593
8594
8595
8596
8597
8598
8599
8600
8601
8602
8603
|
8368
8369
8370
8371
8372
8373
8374
8375
8376
8377
8378
8379
8380
8381
|
-
-
|
case FNC_COLOUR_DIFF_MINUS:
case FNC_COLOUR_DIFF_TAGS:
case FNC_COLOUR_TREE_LINK:
case FNC_COLOUR_BRANCH_CLOSED:
return COLOR_MAGENTA;
case FNC_COLOUR_HL_SEARCH:
return COLOR_YELLOW;
case FNC_COLOUR_DIFF_SBS_EDIT:
return COLOR_RED;
default:
return -1; /* Terminal default foreground colour. */
}
}
static int
fnc_conf_setopt(enum fnc_opt_id id, const char *val, bool unset)
|
︙ | | |
8750
8751
8752
8753
8754
8755
8756
8757
8758
8759
8760
8761
8762
8763
8764
8765
8766
8767
8768
8769
8770
8771
8772
8773
8774
8775
8776
8777
8778
8779
8780
8781
8782
8783
8784
8785
8786
8787
8788
8789
8790
|
8528
8529
8530
8531
8532
8533
8534
8535
8536
8537
8538
8539
8540
8541
8542
8543
8544
8545
8546
8547
8548
8549
8550
8551
8552
8553
8554
8555
8556
8557
8558
8559
8560
8561
8562
8563
8564
8565
8566
8567
|
+
-
+
+
-
-
-
+
-
+
-
-
+
|
"%s blame requires versioned file path", fcli_progname());
goto end;
}
rc = init_curses();
if (rc)
goto end;
#ifdef __OpenBSD__
rc = init_unveil(REPODB, CKOUTDIR, false);
rc = init_unveil(fsl_cx_db_file_repo(f, NULL),
fsl_cx_ckout_dir_name(f, NULL), false);
if (rc)
goto end;
rc = init_landlock((const char*[]){REPODIR, CKOUTDIR, P_tmpdir}, 3);
if (rc)
goto end;
#endif
view = view_open(0, 0, 0, 0, FNC_VIEW_BLAME);
if (view == NULL) {
rc = RC(FSL_RC_ERROR, "%s", view_open);
goto end;
}
rc = open_blame_view(view, path, commit_id, tip, nlimit,
rc = open_blame_view(view, path, commit_id, tip, nlimit);
fnc_init.lineno);
if (rc)
goto end;
rc = view_loop(view);
end:
fsl_free(path);
fsl_free(commit_id);
return rc;
}
static int
open_blame_view(struct fnc_view *view, char *path, fsl_uuid_str commit_id,
fsl_id_t tip, int nlimit, const char *lineno)
fsl_id_t tip, int nlimit)
{
struct fnc_blame_view_state *s = &view->state.blame;
int rc = 0;
CONCAT(STAILQ, _INIT)(&s->blamed_commits);
s->path = fsl_strdup(path);
|
︙ | | |
8805
8806
8807
8808
8809
8810
8811
8812
8813
8814
8815
8816
8817
8818
8819
|
8582
8583
8584
8585
8586
8587
8588
8589
8590
8591
8592
8593
8594
8595
|
-
|
s->selected_line = 1;
s->blame_complete = false;
s->commit_id = commit_id;
s->blame.origin = tip;
s->blame.nlimit = nlimit;
s->spin_idx = 0;
s->colour = !fnc_init.nocolour && has_colors();
s->lineno = lineno;
if (s->colour) {
STAILQ_INIT(&s->colours);
rc = set_colours(&s->colours, FNC_VIEW_BLAME);
if (rc)
return rc;
}
|
︙ | | |
8902
8903
8904
8905
8906
8907
8908
8909
8910
8911
8912
8913
8914
8915
8916
8917
8918
8919
8920
8921
8922
8923
|
8678
8679
8680
8681
8682
8683
8684
8685
8686
8687
8688
8689
8690
8691
|
-
-
-
-
-
-
-
-
|
goto end;
}
/* Don't include EOF \n in blame line count. */
if (blame->line_offsets[blame->nlines - 1] == blame->filesz)
--blame->nlines;
if (s->lineno) {
long ln;
rc = strtonumcheck(&ln, s->lineno, 1, blame->nlines);
if (rc)
goto end;
s->gtl = ln;
}
blame->lines = calloc(blame->nlines, sizeof(*blame->lines));
if (blame->lines == NULL) {
rc = RC(fsl_errno_to_rc(errno, FSL_RC_ERROR), "%s", "calloc");
goto end;
}
master = fsl_config_get_text(f, FSL_CONFDB_REPO, "main-branch", NULL);
|
︙ | | |
9184
9185
9186
9187
9188
9189
9190
9191
9192
9193
9194
9195
9196
9197
9198
9199
9200
9201
9202
9203
9204
9205
9206
9207
9208
9209
9210
9211
9212
|
8952
8953
8954
8955
8956
8957
8958
8959
8960
8961
8962
8963
8964
8965
8966
8967
8968
8969
8970
8971
8972
8973
8974
8975
8976
8977
8978
8979
8980
8981
|
-
+
+
-
+
|
regmatch_t *regmatch = &view->regmatch;
struct fnc_colour *c = NULL;
wchar_t *wcstr;
char *line = NULL;
fsl_uuid_str prev_id = NULL;
ssize_t linelen;
size_t linesz = 0;
int col, width, lineno = 0, nprinted = 0;
int width, lineno = 0, nprinted = 0;
int rc = FSL_RC_OK;
int npad = 0;
const int idfield = 11; /* Prefix + space. */
bool selected;
rewind(blame->f);
werase(view->window);
if ((line = fsl_mprintf("checkin %s", s->blamed_commit->id)) == NULL) {
rc = RC(fsl_errno_to_rc(errno, FSL_RC_ERROR),
"%s", "fsl_mprintf");
return rc;
}
rc = formatln(&wcstr, &width, line, view->ncols, 0, false);
rc = formatln(&wcstr, &width, line, view->ncols, 0, 0, false);
fsl_free(line);
line = NULL;
if (rc)
return rc;
if (screen_is_shared(view))
wattron(view->window, A_REVERSE);
if (s->colour)
|
︙ | | |
9220
9221
9222
9223
9224
9225
9226
9227
9228
9229
9230
9231
9232
9233
9234
9235
9236
9237
9238
9239
9240
9241
9242
9243
9244
9245
9246
9247
9248
9249
9250
9251
9252
9253
9254
|
8989
8990
8991
8992
8993
8994
8995
8996
8997
8998
8999
9000
9001
9002
9003
9004
9005
9006
9007
9008
9009
9010
9011
9012
9013
9014
9015
9016
9017
9018
9019
9020
9021
9022
9023
9024
9025
|
+
+
-
+
+
-
+
-
+
-
|
}
if (c)
wattr_off(view->window, COLOR_PAIR(c->scheme), NULL);
if (screen_is_shared(view))
wattroff(view->window, A_REVERSE);
fsl_free(wcstr);
wcstr = NULL;
if (width < view->ncols - 1)
waddch(view->window, '\n');
line = fsl_mprintf("[%d/%d] %s%s %c", s->gtl ? s->gtl :
line = fsl_mprintf("[%d/%d] %s%s%s %c", s->gtl ? s->gtl :
MIN(blame->nlines, s->first_line_onscreen - 1 + s->selected_line),
blame->nlines, s->blame_complete ? "" : "annotating... ",
fnc_init.sym ? "/" : "", s->path,
s->path, s->blame_complete ? ' ' : SPINNER[s->spin_idx]);
s->blame_complete ? ' ' : SPINNER[s->spin_idx]);
if (SPINNER[++s->spin_idx] == '\0')
s->spin_idx = 0;
rc = formatln(&wcstr, &width, line, view->ncols, 0, false);
rc = formatln(&wcstr, &width, line, view->ncols, 0, 0, false);
fsl_free(line);
line = NULL;
if (rc)
return rc;
waddwstr(view->window, wcstr);
fsl_free(wcstr);
wcstr = NULL;
if (width < view->ncols - 1)
waddch(view->window, '\n');
s->eof = false;
while (nprinted < view->nlines - 2) {
width = col = 0;
attr_t rx = 0;
linelen = getline(&line, &linesz, blame->f);
if (linelen == -1) {
if (feof(blame->f)) {
s->eof = true;
break;
}
|
︙ | | |
9296
9297
9298
9299
9300
9301
9302
9303
9304
9305
9306
9307
9308
9309
9310
9311
9312
9313
9314
9315
9316
9317
9318
9319
9320
9321
9322
9323
9324
9325
9326
9327
9328
9329
9330
9331
9332
9333
9334
9335
9336
9337
9338
9339
9340
9341
9342
9343
9344
9345
9346
9347
9348
9349
9350
|
9067
9068
9069
9070
9071
9072
9073
9074
9075
9076
9077
9078
9079
9080
9081
9082
9083
9084
9085
9086
9087
9088
9089
9090
9091
9092
9093
9094
9095
9096
9097
9098
9099
9100
9101
9102
9103
9104
9105
9106
9107
9108
9109
9110
9111
9112
9113
9114
9115
9116
9117
9118
9119
9120
9121
|
-
+
-
+
-
-
-
+
+
+
+
+
+
+
+
-
+
-
-
-
+
+
+
-
-
-
-
+
-
-
-
+
|
fsl_free(id_str);
prev_id = blame_line->id;
} else {
waddstr(view->window, "..........");
prev_id = NULL;
}
if (s->showln)
col = draw_lineno(view, blame->nlines,
npad = draw_lineno(view, blame->nlines,
blame_line->lineno, rx);
} else {
waddstr(view->window, "..........");
prev_id = NULL;
}
col += idfield;
if (selected)
wattroff(view->window, rx);
waddch(view->window, ' ');
if (view->ncols <= idfield) {
width = idfield;
wcstr = wcsdup(L"");
if (wcstr == NULL) {
rc = RC(fsl_errno_to_rc(errno, FSL_RC_RANGE),
"%s", "wcsdup");
fsl_free(line);
return rc;
}
} else if (s->first_line_onscreen + nprinted == s->matched_line
&& regmatch->rm_so >= 0 &&
regmatch->rm_so < regmatch->rm_eo) {
rc = draw_matched_line(view, line, &width,
view->ncols - col, 0, regmatch, 0);
} else if (view->pos.col < etcount(line, linelen) - 1) {
rc = draw_matched_line(view, &width, idfield + npad,
regmatch, 0);
if (rc) {
fsl_free(line);
return rc;
}
width += idfield;
} else {
rc = formatln(&wcstr, &width, line,
view->pos.col + view->ncols - col, 0, true);
view->ncols - idfield - npad, idfield + npad,
/* XXX Change above else if to else to use next line. */
/* if (view->pos.col < width) */
waddwstr(view->window, wcstr + view->pos.col);
view->pos.col, true);
waddwstr(view->window, wcstr);
fsl_free(wcstr);
wcstr = NULL;
width += idfield;
}
if (rc) {
fsl_free(line);
return rc;
}
col += MAX(width - view->pos.col, 0);
if (col < view->ncols)
if (width + npad <= view->ncols - 1)
waddch(view->window, '\n');
if (++nprinted == 1)
s->first_line_onscreen = lineno;
}
fsl_free(line);
s->last_line_onscreen = lineno;
|
︙ | | |
9440
9441
9442
9443
9444
9445
9446
9447
9448
9449
9450
9451
9452
9453
9454
9455
|
9211
9212
9213
9214
9215
9216
9217
9218
9219
9220
9221
9222
9223
9224
9225
9226
|
-
-
+
+
|
break;
case KEY_LEFT:
case 'h':
view->pos.col -= MIN(view->pos.col, 2);
break;
case 'q':
s->done = true;
if (s->selected_entry)
fnc_commit_artifact_close(s->selected_entry);
if (s->selected_commit)
fnc_commit_artifact_close(s->selected_commit);
break;
case 'c':
s->colour = !s->colour;
break;
case 'g':
if (!fnc_home(view))
break;
|
︙ | | |
9514
9515
9516
9517
9518
9519
9520
9521
9522
9523
9524
9525
9526
9527
9528
9529
9530
|
9285
9286
9287
9288
9289
9290
9291
9292
9293
9294
9295
9296
9297
9298
9299
9300
9301
|
-
+
-
+
|
break;
}
if (s->first_line_onscreen > nscroll)
s->first_line_onscreen -= nscroll;
else
s->first_line_onscreen = 1;
break;
case '@': {
case 'L': {
struct input input = {(int []){1, s->blame.nlines}, "line: ",
INPUT_NUMERIC, SR_CLREOL};
INPUT_NUMERIC, true};
rc = fnc_prompt_input(view, &input);
s->gtl = input.ret;
break;
}
case '#':
s->showln = !s->showln;
break;
|
︙ | | |
9561
9562
9563
9564
9565
9566
9567
9568
9569
9570
9571
9572
9573
9574
9575
9576
|
9332
9333
9334
9335
9336
9337
9338
9339
9340
9341
9342
9343
9344
9345
9346
|
-
+
-
|
if (fsl_deck_F_search(&d, s->path +
(fnc_init.sym ? 0 : 1)) == NULL) {
char *m = fsl_mprintf("-- %s not in [%.12s] --",
s->path + (fnc_init.sym ? 0 : 1), pid);
if (m == NULL)
rc = RC(FSL_RC_ERROR, "%s",
"fsl_mprintf");
sitrep(view, m,
fnc_print_msg(view, m, true, true, true);
SR_CLREOL | SR_UPDATE | SR_SLEEP);
fsl_deck_finalize(&d);
fsl_free(pid);
fsl_free(m);
break;
}
rc = fnc_commit_qid_alloc(&s->blamed_commit, pid);
if (rc)
|
︙ | | |
9644
9645
9646
9647
9648
9649
9650
9651
9652
9653
9654
9655
9656
9657
9658
9659
9660
9661
9662
9663
9664
9665
9666
9667
9668
9669
9670
9671
9672
9673
9674
9675
9676
9677
9678
9679
9680
|
9414
9415
9416
9417
9418
9419
9420
9421
9422
9423
9424
9425
9426
9427
9428
9429
9430
9431
9432
9433
9434
9435
9436
9437
9438
9439
9440
9441
9442
9443
9444
9445
9446
9447
9448
9449
9450
|
-
-
+
+
-
-
-
+
+
+
|
fsl_stmt *q = NULL;
fsl_uuid_cstr id = NULL;
id = get_selected_commit_id(s->blame.lines, s->blame.nlines,
s->first_line_onscreen, s->selected_line);
if (id == NULL)
break;
if (s->selected_entry)
fnc_commit_artifact_close(s->selected_entry);
if (s->selected_commit)
fnc_commit_artifact_close(s->selected_commit);
if (rc)
break;
q = fsl_stmt_malloc();
rc = commit_builder(&commit, fsl_uuid_to_rid(f, id), q);
fsl_stmt_finalize(q);
if (rc) {
fnc_commit_artifact_close(commit);
break;
}
if (view_is_parent(view))
start_col = view_split_start_col(view->start_col);
diff_view = view_open(0, 0, 0, start_col, FNC_VIEW_DIFF);
if (diff_view == NULL) {
fnc_commit_artifact_close(commit);
rc = RC(FSL_RC_ERROR, "%s", "view_open");
break;
}
rc = open_diff_view(diff_view, commit, DEF_DIFF_CTX,
fnc_init.sbs, fnc_init.ws, fnc_init.invert,
!fnc_init.quiet, fnc_init.showln, NULL, true, NULL);
s->selected_entry = commit;
fnc_init.ws, fnc_init.invert, !fnc_init.quiet, NULL, true,
NULL);
s->selected_commit = commit;
if (rc) {
fnc_commit_artifact_close(commit);
view_close(diff_view);
break;
}
view->active = false;
diff_view->active = true;
|
︙ | | |
9887
9888
9889
9890
9891
9892
9893
9894
9895
9896
9897
9898
9899
9900
9901
9902
9903
9904
9905
9906
|
9657
9658
9659
9660
9661
9662
9663
9664
9665
9666
9667
9668
9669
9670
9671
9672
9673
9674
9675
9676
9677
|
+
+
-
+
+
-
-
-
+
|
return rc;
}
glob = fsl_strdup(fcli_next_arg(true));
rc = init_curses();
if (rc)
goto end;
#ifdef __OpenBSD__
const fsl_cx *const f = fcli_cx();
rc = init_unveil(REPODB, CKOUTDIR, false);
rc = init_unveil(fsl_cx_db_file_repo(f, NULL),
fsl_cx_ckout_dir_name(f, NULL), false);
if (rc)
goto end;
rc = init_landlock((const char*[]){REPODIR, CKOUTDIR, P_tmpdir}, 3);
if (rc)
goto end;
#endif
view = view_open(0, 0, 0, 0, FNC_VIEW_BRANCH);
if (view == NULL) {
rc = RC(FSL_RC_ERROR, "%s", "view_open");
goto end;
}
|
︙ | | |
9915
9916
9917
9918
9919
9920
9921
9922
9923
9924
9925
9926
9927
9928
9929
|
9686
9687
9688
9689
9690
9691
9692
9693
9694
9695
9696
9697
9698
9699
9700
|
-
+
|
static int
open_branch_view(struct fnc_view *view, int branch_flags, const char *glob,
double dateline, int when)
{
struct fnc_branch_view_state *s = &view->state.branch;
int rc = 0;
s->selected_entry = 0;
s->selected_branch = 0;
s->colour = !fnc_init.nocolour && has_colors();
s->branch_flags = branch_flags;
s->branch_glob = glob;
s->dateline = dateline;
s->when = when;
rc = fnc_load_branches(s);
|
︙ | | |
10195
10196
10197
10198
10199
10200
10201
10202
10203
10204
10205
10206
10207
10208
10209
|
9966
9967
9968
9969
9970
9971
9972
9973
9974
9975
9976
9977
9978
9979
9980
|
-
+
|
be = s->first_branch_onscreen;
if ((line = fsl_mprintf("branches [%d/%d]", be->idx + s->selected + 1,
s->nbranches)) == NULL)
return RC(FSL_RC_ERROR, "%s", "fsl_mprintf");
rc = formatln(&wline, &width, line, view->ncols, 0, false);
rc = formatln(&wline, &width, line, view->ncols, 0, 0, false);
if (rc) {
fsl_free(line);
return rc;
}
if (screen_is_shared(view))
wattron(view->window, A_REVERSE);
waddwstr(view->window, wline);
|
︙ | | |
10235
10236
10237
10238
10239
10240
10241
10242
10243
10244
10245
10246
10247
10248
10249
10250
10251
10252
10253
10254
10255
10256
10257
10258
|
10006
10007
10008
10009
10010
10011
10012
10013
10014
10015
10016
10017
10018
10019
10020
10021
10022
10023
10024
10025
10026
10027
10028
10029
|
-
+
-
+
|
s->show_date ? be->branch->date : 0);
if (line == NULL)
return RC(FSL_RC_ERROR, "%s", "fsl_mprintf");
if (s->colour)
c = match_colour(&s->colours, line);
rc = formatln(&wline, &width, line, view->ncols, 0, false);
rc = formatln(&wline, &width, line, view->ncols, 0, 0, false);
if (rc) {
fsl_free(line);
return rc;
}
if (n == s->selected) {
if (view->active)
wattr_on(view->window, A_REVERSE, NULL);
s->selected_entry = be;
s->selected_branch = be;
}
if (c)
wattr_on(view->window, COLOR_PAIR(c->scheme), NULL);
waddwstr(view->window, wline);
if (c)
wattr_off(view->window, COLOR_PAIR(c->scheme), NULL);
if (width < view->ncols - 1)
|
︙ | | |
10292
10293
10294
10295
10296
10297
10298
10299
10300
10301
10302
10303
10304
10305
10306
10307
10308
10309
10310
10311
10312
10313
10314
10315
10316
10317
10318
10319
10320
10321
10322
10323
10324
10325
10326
10327
10328
10329
10330
10331
|
10063
10064
10065
10066
10067
10068
10069
10070
10071
10072
10073
10074
10075
10076
10077
10078
10079
10080
10081
10082
10083
10084
10085
10086
10087
10088
10089
10090
10091
10092
10093
10094
10095
10096
10097
10098
10099
10100
10101
10102
|
-
+
-
+
-
+
|
break;
case 'i':
s->show_id = !s->show_id;
break;
case KEY_ENTER:
case '\r':
case ' ':
if (!s->selected_entry)
if (!s->selected_branch)
break;
rc = request_view(new_view, view, FNC_VIEW_TIMELINE);
break;
case 's':
/*
* Toggle branch list sort order (cf. branch --sort option):
* lexicographical (default) -> most recently used -> state
*/
if (FLAG_CHK(s->branch_flags, BRANCH_SORT_MTIME)) {
FLAG_CLR(s->branch_flags, BRANCH_SORT_MTIME);
FLAG_SET(s->branch_flags, BRANCH_SORT_STATUS);
} else if (FLAG_CHK(s->branch_flags, BRANCH_SORT_STATUS))
FLAG_CLR(s->branch_flags, BRANCH_SORT_STATUS);
else
FLAG_SET(s->branch_flags, BRANCH_SORT_MTIME);
fnc_free_branches(&s->branches);
rc = fnc_load_branches(s);
break;
case 't':
if (!s->selected_entry)
if (!s->selected_branch)
break;
if (view_is_parent(view))
start_col = view_split_start_col(view->start_col);
rc = browse_branch_tree(&tree_view, start_col,
s->selected_entry);
s->selected_branch);
if (rc || tree_view == NULL)
break;
view->active = false;
tree_view->active = true;
if (view_is_parent(view)) {
rc = view_close_child(view);
if (rc)
|
︙ | | |
10500
10501
10502
10503
10504
10505
10506
10507
10508
10509
10510
10511
10512
10513
10514
10515
10516
10517
10518
10519
10520
10521
10522
10523
10524
|
10271
10272
10273
10274
10275
10276
10277
10278
10279
10280
10281
10282
10283
10284
10285
10286
10287
10288
10289
10290
10291
10292
10293
10294
10295
|
-
-
+
+
-
+
-
+
-
+
|
if (view->searching == SEARCH_DONE) {
view->search_status = SEARCH_CONTINUE;
return 0;
}
if (s->matched_branch) {
if (view->searching == SEARCH_FORWARD) {
if (s->selected_entry)
be = TAILQ_NEXT(s->selected_entry, entries);
if (s->selected_branch)
be = TAILQ_NEXT(s->selected_branch, entries);
else
be = TAILQ_PREV(s->selected_entry,
be = TAILQ_PREV(s->selected_branch,
fnc_branchlist_head, entries);
} else {
if (s->selected_entry == NULL)
if (s->selected_branch == NULL)
be = TAILQ_LAST(&s->branches,
fnc_branchlist_head);
else
be = TAILQ_PREV(s->selected_entry,
be = TAILQ_PREV(s->selected_branch,
fnc_branchlist_head, entries);
}
} else {
if (view->searching == SEARCH_FORWARD)
be = TAILQ_FIRST(&s->branches);
else
be = TAILQ_LAST(&s->branches, fnc_branchlist_head);
|
︙ | | |
10720
10721
10722
10723
10724
10725
10726
10727
10728
10729
10730
10731
10732
10733
10734
10735
10736
10737
10738
10739
10740
10741
10742
10743
10744
10745
10746
10747
10748
10749
10750
10751
10752
10753
10754
10755
10756
10757
10758
10759
10760
10761
10762
10763
10764
10765
10766
10767
10768
10769
10770
10771
10772
10773
10774
10775
10776
10777
10778
10779
10780
10781
10782
10783
10784
10785
10786
10787
10788
10789
10790
10791
10792
10793
10794
10795
10796
10797
10798
10799
10800
10801
10802
10803
10804
10805
10806
10807
10808
10809
10810
10811
10812
10813
10814
10815
10816
10817
10818
10819
10820
|
10491
10492
10493
10494
10495
10496
10497
10498
10499
10500
10501
10502
10503
10504
10505
10506
10507
10508
10509
10510
10511
10512
10513
10514
10515
10516
10517
10518
10519
10520
10521
10522
10523
10524
10525
10526
10527
10528
10529
10530
10531
10532
10533
10534
10535
10536
10537
10538
10539
10540
10541
10542
10543
10544
10545
10546
10547
10548
10549
10550
10551
10552
10553
10554
10555
10556
10557
10558
10559
10560
10561
10562
10563
10564
10565
10566
10567
10568
10569
10570
10571
10572
10573
10574
10575
10576
10577
10578
10579
10580
10581
10582
10583
10584
10585
10586
10587
10588
10589
|
-
+
-
-
-
-
-
-
-
-
+
+
+
+
+
+
-
+
+
-
+
-
-
+
+
-
-
+
+
+
+
-
-
+
+
+
-
+
-
+
-
+
-
-
-
-
|
printf("%s %s\n", fcli_progname(), PRINT_VERSION);
}
static int
strtonumcheck(long *ret, const char *nstr, const int min, const int max)
{
const char *ptr;
long n;
int n;
ptr = NULL;
errno = 0;
/*
* Ubuntu strtol has weird errno and return semantics compared to Unix
* implementations so we get a range error for "all_alpha_char" strings.
*/
n = strtonum(nstr, min, max, &ptr);
if (errno == EINVAL)
return RC(FSL_RC_MISUSE, "not a number: %s", nstr);
else if (errno != 0 || errno == ERANGE || !inrange(n, min, max))
return RC(FSL_RC_RANGE, "out of range: %s", nstr);
if (errno == ERANGE)
return RC(FSL_RC_RANGE, "<n> out of range: -n|--limit=%s [%s]",
nstr, ptr);
else if (errno != 0 || errno == EINVAL)
return RC(FSL_RC_MISUSE, "<n> not a number: -n|--limit=%s [%s]",
nstr, ptr);
else if (ptr && *ptr != '\0')
return RC(FSL_RC_MISUSE, "invalid char: %s", nstr);
return RC(FSL_RC_MISUSE,
"invalid char in <n>: -n|--limit=%s [%s]", nstr, ptr);
*ret = n;
return FSL_RC_OK;
}
static int
fnc_prompt_input(struct fnc_view *view, struct input *input)
{
int rc = FSL_RC_OK;
if (input->prompt)
sitrep(view, input->prompt, input->flags);
fnc_print_msg(view, input->prompt, input->clear, false, false);
rc = cook_input(input->buf, sizeof(input->buf), view->window);
if (rc || !input->buf[0])
return rc;
if (input->type == INPUT_NUMERIC) {
long n = 0;
int min = INT_MIN, max = INT_MAX;
if (input->data) {
min = *(int *)input->data;
max = ((int *)input->data)[1];
}
rc = strtonumcheck(&n, input->buf, min, max);
if (rc == FSL_RC_MISUSE)
rc = sitrep(view, "-- numeric input only --",
SR_CLREOL | SR_UPDATE | SR_SLEEP | SR_RESET);
fnc_print_msg(view, "-- numeric input only --",
true, true, true);
else if (rc == FSL_RC_RANGE || n < min || n > max)
rc = sitrep(view, "-- line outside range --",
SR_CLREOL | SR_UPDATE | SR_SLEEP | SR_RESET);
fnc_print_msg(view, "-- line outside file range --",
true, true, true);
else
input->ret = n;
rc = FSL_RC_OK;
fcli_err_reset();
}
return rc;
}
static int
cook_input(char *ret, int sz, WINDOW *win)
{
int rc;
nocbreak();
echo();
rc = wgetnstr(win, ret, sz);
cbreak();
noecho();
raw();
return rc == ERR ? FSL_RC_ERROR : FSL_RC_OK;
}
static int
sitrep(struct fnc_view *view, const char *msg, int flags)
static void
fnc_print_msg(struct fnc_view *view, const char *msg, bool clear, bool update,
bool zzz)
{
wattr_on(view->window, A_BOLD, NULL);
mvwaddstr(view->window, view->nlines - 1, 0, msg);
if (FLAG_CHK(flags, SR_CLREOL))
if (clear)
wclrtoeol(view->window);
wattr_off(view->window, A_BOLD, NULL);
if (FLAG_CHK(flags, SR_UPDATE)) {
if (update) {
update_panels();
doupdate();
}
if (FLAG_CHK(flags, SR_RESET))
if (zzz)
fcli_err_reset();
if (FLAG_CHK(flags, SR_SLEEP))
sleep(1);
return FSL_RC_OK;
}
/*
* Attempt to parse string d, which must resemble either an ISO8601 formatted
* date (e.g., 2021-10-10, 2020-01-01T10:10:10), disgregarding any trailing
* garbage or space characters such that "2021-10-10x" or "2020-01-01 10:10:10"
* will pass, or an _unambiguous_ DD/MM/YYYY or MM/DD/YYYY formatted date. Upon
|
︙ | | |
10915
10916
10917
10918
10919
10920
10921
10922
10923
10924
10925
10926
10927
10928
10929
10930
10931
10932
10933
10934
10935
10936
10937
10938
10939
10940
10941
10942
10943
10944
10945
10946
10947
10948
10949
10950
10951
10952
10953
10954
10955
10956
10957
10958
10959
10960
10961
10962
10963
10964
10965
10966
10967
10968
10969
10970
10971
10972
10973
10974
10975
10976
10977
10978
10979
10980
10981
10982
10983
10984
10985
10986
10987
10988
10989
10990
10991
10992
10993
10994
10995
10996
10997
10998
10999
11000
11001
11002
11003
11004
11005
11006
11007
11008
11009
11010
11011
11012
11013
11014
11015
11016
11017
11018
11019
11020
11021
11022
11023
11024
11025
11026
11027
11028
11029
11030
11031
11032
11033
11034
11035
11036
11037
11038
11039
11040
11041
11042
11043
11044
11045
11046
11047
11048
11049
11050
11051
11052
11053
11054
11055
11056
11057
11058
11059
11060
11061
11062
11063
11064
11065
11066
11067
11068
11069
11070
11071
11072
11073
|
10684
10685
10686
10687
10688
10689
10690
10691
10692
10693
10694
10695
10696
10697
10698
10699
10700
10701
10702
10703
10704
10705
10706
10707
10708
10709
10710
10711
10712
10713
10714
10715
10716
10717
10718
10719
10720
10721
10722
10723
|
-
-
-
-
-
-
-
+
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+
-
-
-
-
+
-
-
+
+
-
+
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
|
if (*glob == NULL)
return RC(FSL_RC_ERROR, "%s", "fsl_mprintf");
}
return 0;
}
static const char *
getdirname(const char *path, fsl_int_t len, bool slash)
{
fsl_size_t n = (len > 0) ? (fsl_size_t)len : fsl_strlen(path);
const char *p = path + n;
static char ret[PATH_MAX];
#ifdef __OpenBSD__
if (!path || !*path || !len || !n)
return NULL;
while (--p >= path)
if (*p == '/') {
if (!slash)
--p;
break;
}
memset(ret, 0, PATH_MAX);
memcpy(ret, path, p - path + 1);
return ret;
}
/*
* Read permissions for the below unveil() calls are self-evident; we need
* to read the repository and ckout databases, and ckout dir for most all fnc
* operations. Write and create permissions are briefly listed inline, but we
* effectively veil the entire fs except the repo db, ckout, and /tmp dirs.
* effectively veil the entire fs except the repo db, ckout dir, and /tmp.
* The create permissions for the repository and checkout dirs are (perhaps
* unintuitively) needed as fossil(1) creates temporary journal files in both.
*/
static int
init_unveil(const char *repodb, const char *ckoutdir, bool cfg)
{
#ifdef __OpenBSD__
/* wc repo db for 'fnc config' command: fnc_conf_setopt(). */
/* w repo db for 'fnc config' command: fnc_conf_setopt(). */
if (unveil(repodb, cfg ? "rwc" : "rw") == -1)
return RC(fsl_errno_to_rc(errno, FSL_RC_ACCESS),
"unveil(%s, \"rw\")", repodb);
/* wc .fslckout for fsl_ckout_changes_scan() in cmd_diff(). */
if (unveil(ckoutdir, "rwc") == -1)
/* w .fslckout for fsl_ckout_changes_scan() in cmd_diff(). */
if (unveil(ckoutdir, "rw") == -1)
return RC(fsl_errno_to_rc(errno, FSL_RC_ACCESS),
"unveil(%s, \"rw\")", ckoutdir);
/* rwc /tmp for tmpfile() in help(), create_diff(), and run_blame(). */
if (unveil(P_tmpdir, "rwc") == -1)
return RC(fsl_errno_to_rc(errno, FSL_RC_ACCESS),
"unveil(%s, \"rwc\")", P_tmpdir);
if (unveil(NULL, NULL) == -1)
return RC(fsl_errno_to_rc(errno, FSL_RC_ACCESS),
"%s", "unveil");
#endif /* __OpenBSD__ */
return FSL_RC_OK;
}
#ifdef HAVE_LANDLOCK
/*
* Sans libc wrappers, use the following shims provided by Landlock authors.
* https://www.kernel.org/doc/html/latest/userspace-api/landlock.html
*/
#ifndef landlock_create_ruleset
static inline int
landlock_create_ruleset(const struct landlock_ruleset_attr *const attr,
const size_t size, const __u32 flags)
{
return syscall(__NR_landlock_create_ruleset, attr, size, flags);
}
#endif
#ifndef landlock_add_rule
static inline int
landlock_add_rule(const int rfd, const enum landlock_rule_type type,
const void *const attr, const __u32 flags)
{
return syscall(__NR_landlock_add_rule, rfd, type, attr, flags);
}
#endif
#ifndef landlock_restrict_self
static inline int
landlock_restrict_self(const int rfd, const __u32 flags)
{
return syscall(__NR_landlock_restrict_self, rfd, flags);
}
#endif
#endif /* HAVE_LANDLOCK */
/*
* Similar to unveil(), grant read and write permissisions to the repo and
* ckout files, and create permissions to the ckout, repo, and tmp dirs.
*/
static int
init_landlock(const char **paths, const int n)
{
int rc = FSL_RC_OK;
#ifdef HAVE_LANDLOCK
/*
* Define default block list of _all_ possible operations.
* XXX Due to the fail-open design, set all the bits to avoid following
* Landlock for new ops to be added to this deny-by-default list.
*/
struct landlock_ruleset_attr attr = {
.handled_access_fs = 0xffffffffffffffffULL
};
/* Define allowed operations. */
struct landlock_path_beneath_attr path_beneath {
.allowed_access = LANDLOCK_ACCESS_FS_READ_FILE |
LANDLOCK_ACCESS_FS_WRITE_FILE |
LANDLOCK_ACCESS_FS_REMOVE_FILE |
LANDLOCK_ACCESS_FS_READ_DIR |
LANDLOCK_ACCESS_FS_MAKE_REG
}
int rfd;
rfd = landlock_create_ruleset(&attr, sizeof(attr), 0);
if (rfd == -1) {
/* Landlock is not supported or disabled by the kernel. */
if (errno == ENOSYS || errno == EOPNOTSUPP)
return rc;
return RC(fsl_errno_to_rc(errno, FSL_RC_ACCESS),
"landlock: %s", "failed to create ruleset");
}
/* Iterate paths to grant fs permissions. */
for (i = 0; !rc && i < n; ++i) {
path_beneath.parent_fd = open(paths[i], O_PATH | O_CLOEXEC);
if (path_beneath.parent_fd == -1)
rc = RC(fsl_errno_to_rc(errno, FSL_RC_ACCESS),
"landlock: failed to open dir '%s'", paths[i]);
else {
if (landlock_add_rule(rfd, LANDLOCK_RULE_PATH_BENEATH,
&path_beneath, 0))
rc = RC(fsl_errno_to_rc(errno, FSL_RC_ACCESS),
"landlock: %s", "failed to update ruleset");
close(path_beneath.parent_fd);
}
}
if (!rc && prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0) == -1)
rc = RC(fsl_errno_to_rc(errno, FSL_RC_ACCESS),
"landlock: %s", "failed to restrict privileges");
if (!rc && landlock_restrict_self(rfd, 0)) {
rc = RC(fsl_errno_to_rc(errno, FSL_RC_ACCESS),
"landlock: %s", "failed to enforce ruleset");
}
close(rfd);
#endif /* HAVE_LANDLOCK */
return rc;
}
|