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Store peeled refs in packed-refs file.

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This would speed up "show-ref -d" in a repository with mostly
packed tags.

Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Junio C Hamano
2006-11-19 13:22:44 -08:00
parent ef06b91804
commit cf0adba788
4 changed files with 117 additions and 20 deletions
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36
builtin-show-ref.c
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@ -13,6 +13,7 @@ static int show_ref(const char *refname, const unsigned char *sha1, int flag, vo
{
struct object *obj;
const char *hex;
unsigned char peeled[20];
if (tags_only || heads_only) {
int match;
@ -44,12 +45,15 @@ static int show_ref(const char *refname, const unsigned char *sha1, int flag, vo
match:
found_match++;
obj = parse_object(sha1);
if (!obj) {
if (quiet)
return 0;
die("git-show-ref: bad ref %s (%s)", refname, sha1_to_hex(sha1));
}
/* This changes the semantics slightly that even under quiet we
* detect and return error if the repository is corrupt and
* ref points at a nonexistent object.
*/
if (!has_sha1_file(sha1))
die("git-show-ref: bad ref %s (%s)", refname,
sha1_to_hex(sha1));
if (quiet)
return 0;
@ -58,11 +62,25 @@ match:
printf("%s\n", hex);
else
printf("%s %s\n", hex, refname);
if (deref_tags && obj->type == OBJ_TAG) {
obj = deref_tag(obj, refname, 0);
hex = find_unique_abbrev(obj->sha1, abbrev);
if (!deref_tags)
return 0;
if ((flag & REF_ISPACKED) && !peel_ref(refname, peeled)) {
hex = find_unique_abbrev(peeled, abbrev);
printf("%s %s^{}\n", hex, refname);
}
else {
obj = parse_object(sha1);
if (!obj)
die("git-show-ref: bad ref %s (%s)", refname,
sha1_to_hex(sha1));
if (obj->type == OBJ_TAG) {
obj = deref_tag(obj, refname, 0);
hex = find_unique_abbrev(obj->sha1, abbrev);
printf("%s %s^{}\n", hex, refname);
}
}
return 0;
}