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rev-parse: --abbrev-ref option to shorten ref name

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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>
This commit is contained in:
Bert Wesarg 2009-04-13 13:20:26 +02:00 committed by Junio C Hamano
parent 2bb98169be
commit a45d34691e
2 changed files with 26 additions and 2 deletions
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5
Documentation/git-rev-parse.txt
View File

@ -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`.

23
builtin-rev-parse.c
View File

@ -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;