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Merge branch 'jc/index-update-if-able'

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* jc/index-update-if-able:
  update $GIT_INDEX_FILE when there are racily clean entries
  diff/status: refactor opportunistic index update
This commit is contained in:
Junio C Hamano 2011-03-26 20:13:16 -07:00
parent 4d46ee74e1 483fbe2b7c
commit 149971badc
4 changed files with 29 additions and 13 deletions
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9
builtin/commit.c
View file

@ -1203,13 +1203,8 @@ int cmd_status(int argc, const char **argv, const char *prefix)
refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED, s.pathspec, NULL, NULL);
fd = hold_locked_index(&index_lock, 0);
if (0 <= fd) {
if (active_cache_changed &&
!write_cache(fd, active_cache, active_nr))
commit_locked_index(&index_lock);
else
rollback_lock_file(&index_lock);
}
if (0 <= fd)
update_index_if_able(&the_index, &index_lock);
s.is_initial = get_sha1(s.reference, sha1) ? 1 : 0;
s.ignore_submodule_arg = ignore_submodule_arg;

7
builtin/diff.c
View file

@ -197,12 +197,7 @@ static void refresh_index_quietly(void)
discard_cache();
read_cache();
refresh_cache(REFRESH_QUIET|REFRESH_UNMERGED);
if (active_cache_changed &&
!write_cache(fd, active_cache, active_nr))
commit_locked_index(lock_file);
rollback_lock_file(lock_file);
update_index_if_able(&the_index, lock_file);
}
static int builtin_diff_files(struct rev_info *revs, int argc, const char **argv)

1
cache.h
View file

@ -543,6 +543,7 @@ extern NORETURN void unable_to_lock_index_die(const char *path, int err);
extern int hold_lock_file_for_update(struct lock_file *, const char *path, int);
extern int hold_lock_file_for_append(struct lock_file *, const char *path, int);
extern int commit_lock_file(struct lock_file *);
extern void update_index_if_able(struct index_state *, struct lock_file *);
extern int hold_locked_index(struct lock_file *, int);
extern int commit_locked_index(struct lock_file *);

25
read-cache.c
View file

@ -1547,6 +1547,31 @@ static int ce_write_entry(git_SHA_CTX *c, int fd, struct cache_entry *ce)
return result;
}
static int has_racy_timestamp(struct index_state *istate)
{
int entries = istate->cache_nr;
int i;
for (i = 0; i < entries; i++) {
struct cache_entry *ce = istate->cache[i];
if (is_racy_timestamp(istate, ce))
return 1;
}
return 0;
}
/*
* Opportunisticly update the index but do not complain if we can't
*/
void update_index_if_able(struct index_state *istate, struct lock_file *lockfile)
{
if ((istate->cache_changed || has_racy_timestamp(istate)) &&
!write_index(istate, lockfile->fd))
commit_locked_index(lockfile);
else
rollback_lock_file(lockfile);
}
int write_index(struct index_state *istate, int newfd)
{
git_SHA_CTX c;