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authorLibravatar Bert Wesarg <bert.wesarg@googlemail.com>2009-04-13 13:20:26 +0200
committerLibravatar Junio C Hamano <gitster@pobox.com>2009-04-13 09:42:55 -0700
commita45d34691ea624e93863e95706eeb1b1909304f3 (patch)
treeccb33f43a955be918d1771082e04a54599a23f0c
parentfor-each-ref: utilize core.warnAmbiguousRefs for :short-format (diff)
downloadtgif-a45d34691ea624e93863e95706eeb1b1909304f3.tar.xz
rev-parse: --abbrev-ref option to shorten ref name
This applies the shorten_unambiguous_ref function to the object name. Default mode is controlled by core.warnAmbiguousRefs. Else it is given as optional argument to --abbrev-ref={strict|loose}. This should be faster than 'git for-each-ref --format="%(refname:short)" <ref>' for single refs. Signed-off-by: Bert Wesarg <bert.wesarg@googlemail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--Documentation/git-rev-parse.txt5
-rw-r--r--builtin-rev-parse.c23
2 files changed, 26 insertions, 2 deletions
diff --git a/Documentation/git-rev-parse.txt b/Documentation/git-rev-parse.txt
index 5ed2bc840f..fba30b12ed 100644
--- a/Documentation/git-rev-parse.txt
+++ b/Documentation/git-rev-parse.txt
@@ -84,6 +84,11 @@ OPTIONS
unfortunately named tag "master"), and show them as full
refnames (e.g. "refs/heads/master").
+--abbrev-ref[={strict|loose}]::
+ A non-ambiguous short name of the objects name.
+ The option core.warnAmbiguousRefs is used to select the strict
+ abbreviation mode.
+
--all::
Show all refs found in `$GIT_DIR/refs`.
diff --git a/builtin-rev-parse.c b/builtin-rev-parse.c
index 81d5a6ffc9..22c6d6ad16 100644
--- a/builtin-rev-parse.c
+++ b/builtin-rev-parse.c
@@ -26,6 +26,8 @@ static int show_type = NORMAL;
#define SHOW_SYMBOLIC_FULL 2
static int symbolic;
static int abbrev;
+static int abbrev_ref;
+static int abbrev_ref_strict;
static int output_sq;
/*
@@ -109,8 +111,8 @@ static void show_rev(int type, const unsigned char *sha1, const char *name)
return;
def = NULL;
- if (symbolic && name) {
- if (symbolic == SHOW_SYMBOLIC_FULL) {
+ if ((symbolic || abbrev_ref) && name) {
+ if (symbolic == SHOW_SYMBOLIC_FULL || abbrev_ref) {
unsigned char discard[20];
char *full;
@@ -125,6 +127,9 @@ static void show_rev(int type, const unsigned char *sha1, const char *name)
*/
break;
case 1: /* happy */
+ if (abbrev_ref)
+ full = shorten_unambiguous_ref(full,
+ abbrev_ref_strict);
show_with_type(type, full);
break;
default: /* ambiguous */
@@ -506,6 +511,20 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
symbolic = SHOW_SYMBOLIC_FULL;
continue;
}
+ if (!prefixcmp(arg, "--abbrev-ref") &&
+ (!arg[12] || arg[12] == '=')) {
+ abbrev_ref = 1;
+ abbrev_ref_strict = warn_ambiguous_refs;
+ if (arg[12] == '=') {
+ if (!strcmp(arg + 13, "strict"))
+ abbrev_ref_strict = 1;
+ else if (!strcmp(arg + 13, "loose"))
+ abbrev_ref_strict = 0;
+ else
+ die("unknown mode for %s", arg);
+ }
+ continue;
+ }
if (!strcmp(arg, "--all")) {
for_each_ref(show_reference, NULL);
continue;