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Merge branch 'master' into lt/logopt

Browse Source 
* master:
  pager: do not fork a pager if PAGER is set to empty.
  diff-options: add --patch-with-stat
  diff-files --stat: do not dump core with unmerged index.
  Support "git cmd --help" syntax
  diff --stat: do not do its own three-dashes.
  diff-tree: typefix.
  GIT v1.3.0-rc4
  xdiff: post-process hunks to make them consistent.
This commit is contained in:
Junio C Hamano 2006-04-16 02:31:11 -07:00
commit b2934926dd
8 changed files with 169 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
Documentation/diff-options.txt
View File

@ -10,6 +10,9 @@
--stat::
Generate a diffstat instead of a patch.
--patch-with-stat::
Generate patch and prepend its diffstat.
-z::
\0 line termination on output

2
GIT-VERSION-GEN
View File

@ -1,7 +1,7 @@
#!/bin/sh
GVF=GIT-VERSION-FILE
DEF_VER=v1.3-rc3.GIT
DEF_VER=v1.3-rc4.GIT
# First try git-describe, then see if there is a version file
# (included in release tarballs), then default

40
diff.c
View File

@ -202,6 +202,8 @@ struct diffstat_t {
int alloc;
struct diffstat_file {
char *name;
unsigned is_unmerged:1;
unsigned is_binary:1;
unsigned int added, deleted;
} **files;
};
@ -245,11 +247,11 @@ static void show_stats(struct diffstat_t* data)
if (data->nr == 0)
return;
printf("---\n");
for (i = 0; i < data->nr; i++) {
struct diffstat_file *file = data->files[i];
if (file->is_binary || file->is_unmerged)
continue;
if (max_change < file->added + file->deleted)
max_change = file->added + file->deleted;
len = strlen(file->name);
@ -294,11 +296,15 @@ static void show_stats(struct diffstat_t* data)
if (max + len > 70)
max = 70 - len;
if (added < 0) {
/* binary file */
if (data->files[i]->is_binary) {
printf(" %s%-*s | Bin\n", prefix, len, name);
goto free_diffstat_file;
} else if (added + deleted == 0) {
}
else if (data->files[i]->is_unmerged) {
printf(" %s%-*s | Unmerged\n", prefix, len, name);
goto free_diffstat_file;
}
else if (added + deleted == 0) {
total_files--;
goto free_diffstat_file;
}
@ -426,11 +432,16 @@ static void builtin_diffstat(const char *name_a, const char *name_b,
data = diffstat_add(diffstat, name_a ? name_a : name_b);
if (!one || !two) {
data->is_unmerged = 1;
return;
}
if (fill_mmfile(&mf1, one) < 0 || fill_mmfile(&mf2, two) < 0)
die("unable to read files to diff");
if (mmfile_is_binary(&mf1) || mmfile_is_binary(&mf2))
data->added = -1;
data->is_binary = 1;
else {
/* Crazy xdl interfaces.. */
xpparam_t xpp;
@ -1049,6 +1060,10 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
}
else if (!strcmp(arg, "--stat"))
options->output_format = DIFF_FORMAT_DIFFSTAT;
else if (!strcmp(arg, "--patch-with-stat")) {
options->output_format = DIFF_FORMAT_PATCH;
options->with_stat = 1;
}
else if (!strcmp(arg, "-z"))
options->line_termination = 0;
else if (!strncmp(arg, "-l", 2))
@ -1518,7 +1533,7 @@ void diff_flush(struct diff_options *options)
int diff_output_format = options->output_format;
struct diffstat_t *diffstat = NULL;
if (diff_output_format == DIFF_FORMAT_DIFFSTAT) {
if (diff_output_format == DIFF_FORMAT_DIFFSTAT || options->with_stat) {
diffstat = xcalloc(sizeof (struct diffstat_t), 1);
diffstat->xm.consume = diffstat_consume;
}
@ -1530,6 +1545,17 @@ void diff_flush(struct diff_options *options)
}
putchar(options->line_termination);
}
if (options->with_stat) {
for (i = 0; i < q->nr; i++) {
struct diff_filepair *p = q->queue[i];
flush_one_pair(p, DIFF_FORMAT_DIFFSTAT, options,
diffstat);
}
show_stats(diffstat);
free(diffstat);
diffstat = NULL;
putchar(options->line_termination);
}
for (i = 0; i < q->nr; i++) {
struct diff_filepair *p = q->queue[i];
flush_one_pair(p, diff_output_format, options, diffstat);

3
diff.h
View File

@ -25,6 +25,7 @@ struct diff_options {
const char *pickaxe;
unsigned recursive:1,
with_raw:1,
with_stat:1,
tree_in_recursive:1,
full_index:1;
int break_opt;
@ -120,6 +121,8 @@ extern void diffcore_std_no_resolve(struct diff_options *);
" --patch-with-raw\n" \
" output both a patch and the diff-raw format.\n" \
" --stat show diffstat instead of patch.\n" \
" --patch-with-stat\n" \
" output a patch and prepend its diffstat.\n" \
" --name-only show only names of changed files.\n" \
" --name-status show names and status of changed files.\n" \
" --full-index show full object name on index lines.\n" \

10
git.c
View File

@ -330,8 +330,10 @@ static int cmd_log_wc(int argc, const char **argv, char **envp,
pretty_print_commit(rev->commit_format, commit, ~0, buf,
LOGSIZE, rev->abbrev);
printf("%s\n", buf);
if (rev->diff)
if (rev->diff) {
printf("---\n");
log_tree_commit(rev, commit);
}
shown = 1;
free(commit->buffer);
commit->buffer = NULL;
@ -398,6 +400,12 @@ static void handle_internal_command(int argc, const char **argv, char **envp)
};
int i;
/* Turn "git cmd --help" into "git help cmd" */
if (argc > 1 && !strcmp(argv[1], "--help")) {
argv[1] = argv[0];
argv[0] = cmd = "help";
}
for (i = 0; i < ARRAY_SIZE(commands); i++) {
struct cmd_struct *p = commands+i;
if (strcmp(p->cmd, cmd))

17
pager.c
View File

@ -5,22 +5,24 @@
* something different on Windows, for example.
*/
static void run_pager(void)
static void run_pager(const char *pager)
{
const char *prog = getenv("PAGER");
if (!prog)
prog = "less";
setenv("LESS", "-S", 0);
execlp(prog, prog, NULL);
execlp(pager, pager, NULL);
}
void setup_pager(void)
{
pid_t pid;
int fd[2];
const char *pager = getenv("PAGER");
if (!isatty(1))
return;
if (!pager)
pager = "less";
else if (!*pager)
return;
if (pipe(fd) < 0)
return;
pid = fork();
@ -43,6 +45,7 @@ void setup_pager(void)
close(fd[0]);
close(fd[1]);
run_pager();
setenv("LESS", "-S", 0);
run_pager(pager);
exit(255);
}

114
xdiff/xdiffi.c
View File

@ -45,6 +45,8 @@ static long xdl_split(unsigned long const *ha1, long off1, long lim1,
long *kvdf, long *kvdb, int need_min, xdpsplit_t *spl,
xdalgoenv_t *xenv);
static xdchange_t *xdl_add_change(xdchange_t *xscr, long i1, long i2, long chg1, long chg2);
static int xdl_change_compact(xdfile_t *xdf, xdfile_t *xdfo);
@ -395,6 +397,110 @@ static xdchange_t *xdl_add_change(xdchange_t *xscr, long i1, long i2, long chg1,
}
static int xdl_change_compact(xdfile_t *xdf, xdfile_t *xdfo) {
long ix, ixo, ixs, ixref, grpsiz, nrec = xdf->nrec;
char *rchg = xdf->rchg, *rchgo = xdfo->rchg;
xrecord_t **recs = xdf->recs;
/*
* This is the same of what GNU diff does. Move back and forward
* change groups for a consistent and pretty diff output. This also
* helps in finding joineable change groups and reduce the diff size.
*/
for (ix = ixo = 0;;) {
/*
* Find the first changed line in the to-be-compacted file.
* We need to keep track of both indexes, so if we find a
* changed lines group on the other file, while scanning the
* to-be-compacted file, we need to skip it properly. Note
* that loops that are testing for changed lines on rchg* do
* not need index bounding since the array is prepared with
* a zero at position -1 and N.
*/
for (; ix < nrec && !rchg[ix]; ix++)
while (rchgo[ixo++]);
if (ix == nrec)
break;
/*
* Record the start of a changed-group in the to-be-compacted file
* and find the end of it, on both to-be-compacted and other file
* indexes (ix and ixo).
*/
ixs = ix;
for (ix++; rchg[ix]; ix++);
for (; rchgo[ixo]; ixo++);
do {
grpsiz = ix - ixs;
/*
* If the line before the current change group, is equal to
* the last line of the current change group, shift backward
* the group.
*/
while (ixs > 0 && recs[ixs - 1]->ha == recs[ix - 1]->ha &&
XDL_RECMATCH(recs[ixs - 1], recs[ix - 1])) {
rchg[--ixs] = 1;
rchg[--ix] = 0;
/*
* This change might have joined two change groups,
* so we try to take this scenario in account by moving
* the start index accordingly (and so the other-file
* end-of-group index).
*/
for (; rchg[ixs - 1]; ixs--);
while (rchgo[--ixo]);
}
/*
* Record the end-of-group position in case we are matched
* with a group of changes in the other file (that is, the
* change record before the enf-of-group index in the other
* file is set).
*/
ixref = rchgo[ixo - 1] ? ix: nrec;
/*
* If the first line of the current change group, is equal to
* the line next of the current change group, shift forward
* the group.
*/
while (ix < nrec && recs[ixs]->ha == recs[ix]->ha &&
XDL_RECMATCH(recs[ixs], recs[ix])) {
rchg[ixs++] = 0;
rchg[ix++] = 1;
/*
* This change might have joined two change groups,
* so we try to take this scenario in account by moving
* the start index accordingly (and so the other-file
* end-of-group index). Keep tracking the reference
* index in case we are shifting together with a
* corresponding group of changes in the other file.
*/
for (; rchg[ix]; ix++);
while (rchgo[++ixo])
ixref = ix;
}
} while (grpsiz != ix - ixs);
/*
* Try to move back the possibly merged group of changes, to match
* the recorded postion in the other file.
*/
while (ixref < ix) {
rchg[--ixs] = 1;
rchg[--ix] = 0;
while (rchgo[--ixo]);
}
}
return 0;
}
int xdl_build_script(xdfenv_t *xe, xdchange_t **xscr) {
xdchange_t *cscr = NULL, *xch;
char *rchg1 = xe->xdf1.rchg, *rchg2 = xe->xdf2.rchg;
@ -440,13 +546,13 @@ int xdl_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp,
return -1;
}
if (xdl_build_script(&xe, &xscr) < 0) {
if (xdl_change_compact(&xe.xdf1, &xe.xdf2) < 0 ||
xdl_change_compact(&xe.xdf2, &xe.xdf1) < 0 ||
xdl_build_script(&xe, &xscr) < 0) {
xdl_free_env(&xe);
return -1;
}
if (xscr) {
if (xdl_emit_diff(&xe, xscr, ecb, xecfg) < 0) {
@ -454,10 +560,8 @@ int xdl_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp,
xdl_free_env(&xe);
return -1;
}
xdl_free_script(xscr);
}
xdl_free_env(&xe);
return 0;

1
xdiff/xmacros.h
View File

@ -33,6 +33,7 @@
#define XDL_ISDIGIT(c) ((c) >= '0' && (c) <= '9')
#define XDL_HASHLONG(v, b) (((unsigned long)(v) * GR_PRIME) >> ((CHAR_BIT * sizeof(unsigned long)) - (b)))
#define XDL_PTRFREE(p) do { if (p) { xdl_free(p); (p) = NULL; } } while (0)
#define XDL_RECMATCH(r1, r2) ((r1)->size == (r2)->size && memcmp((r1)->ptr, (r2)->ptr, (r1)->size) == 0)
#define XDL_LE32_PUT(p, v) \
do { \
unsigned char *__p = (unsigned char *) (p); \