git/builtin/merge-index.c
Linus Torvalds 81b50f3ce4 Move 'builtin-*' into a 'builtin/' subdirectory
This shrinks the top-level directory a bit, and makes it much more
pleasant to use auto-completion on the thing. Instead of

	[torvalds@nehalem git]$ em buil<tab>
	Display all 180 possibilities? (y or n)
	[torvalds@nehalem git]$ em builtin-sh
	builtin-shortlog.c     builtin-show-branch.c  builtin-show-ref.c
	builtin-shortlog.o     builtin-show-branch.o  builtin-show-ref.o
	[torvalds@nehalem git]$ em builtin-shor<tab>
	builtin-shortlog.c  builtin-shortlog.o
	[torvalds@nehalem git]$ em builtin-shortlog.c

you get

	[torvalds@nehalem git]$ em buil<tab>		[type]
	builtin/   builtin.h
	[torvalds@nehalem git]$ em builtin		[auto-completes to]
	[torvalds@nehalem git]$ em builtin/sh<tab>	[type]
	shortlog.c     shortlog.o     show-branch.c  show-branch.o  show-ref.c     show-ref.o
	[torvalds@nehalem git]$ em builtin/sho		[auto-completes to]
	[torvalds@nehalem git]$ em builtin/shor<tab>	[type]
	shortlog.c  shortlog.o
	[torvalds@nehalem git]$ em builtin/shortlog.c

which doesn't seem all that different, but not having that annoying
break in "Display all 180 possibilities?" is quite a relief.

NOTE! If you do this in a clean tree (no object files etc), or using an
editor that has auto-completion rules that ignores '*.o' files, you
won't see that annoying 'Display all 180 possibilities?' message - it
will just show the choices instead.  I think bash has some cut-off
around 100 choices or something.

So the reason I see this is that I'm using an odd editory, and thus
don't have the rules to cut down on auto-completion.  But you can
simulate that by using 'ls' instead, or something similar.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-22 14:29:41 -08:00

112 lines
2.2 KiB
C

#include "cache.h"
#include "run-command.h"
#include "exec_cmd.h"
static const char *pgm;
static int one_shot, quiet;
static int err;
static int merge_entry(int pos, const char *path)
{
int found;
const char *arguments[] = { pgm, "", "", "", path, "", "", "", NULL };
char hexbuf[4][60];
char ownbuf[4][60];
if (pos >= active_nr)
die("git merge-index: %s not in the cache", path);
found = 0;
do {
struct cache_entry *ce = active_cache[pos];
int stage = ce_stage(ce);
if (strcmp(ce->name, path))
break;
found++;
strcpy(hexbuf[stage], sha1_to_hex(ce->sha1));
sprintf(ownbuf[stage], "%o", ce->ce_mode);
arguments[stage] = hexbuf[stage];
arguments[stage + 4] = ownbuf[stage];
} while (++pos < active_nr);
if (!found)
die("git merge-index: %s not in the cache", path);
if (run_command_v_opt(arguments, 0)) {
if (one_shot)
err++;
else {
if (!quiet)
die("merge program failed");
exit(1);
}
}
return found;
}
static void merge_file(const char *path)
{
int pos = cache_name_pos(path, strlen(path));
/*
* If it already exists in the cache as stage0, it's
* already merged and there is nothing to do.
*/
if (pos < 0)
merge_entry(-pos-1, path);
}
static void merge_all(void)
{
int i;
for (i = 0; i < active_nr; i++) {
struct cache_entry *ce = active_cache[i];
if (!ce_stage(ce))
continue;
i += merge_entry(i, ce->name)-1;
}
}
int cmd_merge_index(int argc, const char **argv, const char *prefix)
{
int i, force_file = 0;
/* Without this we cannot rely on waitpid() to tell
* what happened to our children.
*/
signal(SIGCHLD, SIG_DFL);
if (argc < 3)
usage("git merge-index [-o] [-q] <merge-program> (-a | [--] <filename>*)");
read_cache();
i = 1;
if (!strcmp(argv[i], "-o")) {
one_shot = 1;
i++;
}
if (!strcmp(argv[i], "-q")) {
quiet = 1;
i++;
}
pgm = argv[i++];
for (; i < argc; i++) {
const char *arg = argv[i];
if (!force_file && *arg == '-') {
if (!strcmp(arg, "--")) {
force_file = 1;
continue;
}
if (!strcmp(arg, "-a")) {
merge_all();
continue;
}
die("git merge-index: unknown option %s", arg);
}
merge_file(arg);
}
if (err && !quiet)
die("merge program failed");
return err;
}