git/builtin/merge-index.c
Ævar Arnfjörð Bjarmason 07047d6829 cocci: apply "pending" index-compatibility to some "builtin/*.c"
Apply "index-compatibility.pending.cocci" rule to "builtin/*", but
exclude those where we conflict with in-flight changes.

As a result some of them end up using only "the_index", so let's have
them use the more narrow "USE_THE_INDEX_VARIABLE" rather than
"USE_THE_INDEX_COMPATIBILITY_MACROS".

Manual changes not made by coccinelle, that were squashed in:

* Whitespace-wrap argument lists for repo_hold_locked_index(),
  repo_read_index_preload() and repo_refresh_and_write_index(), in cases
  where the line became too long after the transformation.
* Change "refresh_cache()" to "refresh_index()" in a comment in
  "builtin/update-index.c".
* For those whose call was followed by perror("<macro-name>"), change
  it to perror("<function-name>"), referring to the new function.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-11-21 12:06:15 +09:00

118 lines
2.5 KiB
C

#define USE_THE_INDEX_VARIABLE
#include "builtin.h"
#include "run-command.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][GIT_MAX_HEXSZ + 1];
char ownbuf[4][60];
struct child_process cmd = CHILD_PROCESS_INIT;
if (pos >= the_index.cache_nr)
die("git merge-index: %s not in the cache", path);
found = 0;
do {
const struct cache_entry *ce = the_index.cache[pos];
int stage = ce_stage(ce);
if (strcmp(ce->name, path))
break;
found++;
oid_to_hex_r(hexbuf[stage], &ce->oid);
xsnprintf(ownbuf[stage], sizeof(ownbuf[stage]), "%o", ce->ce_mode);
arguments[stage] = hexbuf[stage];
arguments[stage + 4] = ownbuf[stage];
} while (++pos < the_index.cache_nr);
if (!found)
die("git merge-index: %s not in the cache", path);
strvec_pushv(&cmd.args, arguments);
if (run_command(&cmd)) {
if (one_shot)
err++;
else {
if (!quiet)
die("merge program failed");
exit(1);
}
}
return found;
}
static void merge_one_path(const char *path)
{
int pos = index_name_pos(&the_index, 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;
/* TODO: audit for interaction with sparse-index. */
ensure_full_index(&the_index);
for (i = 0; i < the_index.cache_nr; i++) {
const struct cache_entry *ce = the_index.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>...])");
repo_read_index(the_repository);
/* TODO: audit for interaction with sparse-index. */
ensure_full_index(&the_index);
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_one_path(arg);
}
if (err && !quiet)
die("merge program failed");
return err;
}