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-rw-r--r--builtin-show-ref.c35
1 files changed, 31 insertions, 4 deletions
diff --git a/builtin-show-ref.c b/builtin-show-ref.c
index 12c457c3c..f2912e825 100644
--- a/builtin-show-ref.c
+++ b/builtin-show-ref.c
@@ -6,12 +6,13 @@
static const char show_ref_usage[] = "git show-ref [-q|--quiet] [--verify] [-h|--head] [-d|--dereference] [-s|--hash] [--tags] [--heads] [--] [pattern*]";
static int deref_tags = 0, show_head = 0, tags_only = 0, heads_only = 0,
- found_match = 0, verify = 0, quiet = 0, hash_only = 0;
+ found_match = 0, verify = 0, quiet = 0, hash_only = 0, abbrev = 0;
static const char **pattern;
static int show_ref(const char *refname, const unsigned char *sha1, int flag, void *cbdata)
{
struct object *obj;
+ const char *hex;
if (tags_only || heads_only) {
int match;
@@ -51,13 +52,16 @@ match:
}
if (quiet)
return 0;
+
+ hex = find_unique_abbrev(sha1, abbrev);
if (hash_only)
- printf("%s\n", sha1_to_hex(sha1));
+ printf("%s\n", hex);
else
- printf("%s %s\n", sha1_to_hex(sha1), refname);
+ printf("%s %s\n", hex, refname);
if (deref_tags && obj->type == OBJ_TAG) {
obj = deref_tag(obj, refname, 0);
- printf("%s %s^{}\n", sha1_to_hex(obj->sha1), refname);
+ hex = find_unique_abbrev(obj->sha1, abbrev);
+ printf("%s %s^{}\n", hex, refname);
}
return 0;
}
@@ -94,6 +98,29 @@ int cmd_show_ref(int argc, const char **argv, const char *prefix)
hash_only = 1;
continue;
}
+ if (!strncmp(arg, "--hash=", 7) ||
+ (!strncmp(arg, "--abbrev", 8) &&
+ (arg[8] == '=' || arg[8] == '\0'))) {
+ if (arg[3] != 'h' && !arg[8])
+ /* --abbrev only */
+ abbrev = DEFAULT_ABBREV;
+ else {
+ /* --hash= or --abbrev= */
+ char *end;
+ if (arg[3] == 'h') {
+ hash_only = 1;
+ arg += 7;
+ }
+ else
+ arg += 9;
+ abbrev = strtoul(arg, &end, 10);
+ if (*end || abbrev > 40)
+ usage(show_ref_usage);
+ if (abbrev < MINIMUM_ABBREV)
+ abbrev = MINIMUM_ABBREV;
+ }
+ continue;
+ }
if (!strcmp(arg, "--verify")) {
verify = 1;
continue;