path: root/sha1_name.c
diff options
authorSteffen Prohaska <>2007-11-11 14:01:46 (GMT)
committerJunio C Hamano <>2007-11-19 02:39:00 (GMT)
commit79803322c1d8d2f74e1a53d44f363d878180e0f5 (patch)
treea0eab3ca833809dfd8f00893ca305de98038593c /sha1_name.c
parent47d996a20c3347bb9efbb44e8ed2d615cfdffba3 (diff)
add refname_match()
We use at least two rulesets for matching abbreviated refnames with full refnames (starting with 'refs/'). git-rev-parse and git-fetch use slightly different rules. This commit introduces a new function refname_match (const char *abbrev_name, const char *full_name, const char **rules). abbrev_name is expanded using the rules and matched against full_name. If a match is found the function returns true. rules is a NULL-terminate list of format patterns with "%.*s", for example: const char *ref_rev_parse_rules[] = { "%.*s", "refs/%.*s", "refs/tags/%.*s", "refs/heads/%.*s", "refs/remotes/%.*s", "refs/remotes/%.*s/HEAD", NULL }; Asterisks are included in the format strings because this is the form required in sha1_name.c. Sharing the list with the functions there is a good idea to avoid duplicating the rules. Hopefully this facilitates unified matching rules in the future. This commit makes the rules used by rev-parse for resolving refs to sha1s available for string comparison. Before this change, the rules were buried in get_sha1*() and dwim_ref(). A follow-up commit will refactor the rules used by fetch. refname_match() will be used for matching refspecs in git-send-pack. Thanks to Daniel Barkalow <> for pointing out that ref_matches_abbrev in remote.c solves a similar problem and care should be taken to avoid confusion. Signed-off-by: Steffen Prohaska <> Signed-off-by: Junio C Hamano <>
Diffstat (limited to 'sha1_name.c')
1 files changed, 2 insertions, 12 deletions
diff --git a/sha1_name.c b/sha1_name.c
index 2d727d5..d364244 100644
--- a/sha1_name.c
+++ b/sha1_name.c
@@ -239,23 +239,13 @@ static int ambiguous_path(const char *path, int len)
return slash;
-static const char *ref_fmt[] = {
- "%.*s",
- "refs/%.*s",
- "refs/tags/%.*s",
- "refs/heads/%.*s",
- "refs/remotes/%.*s",
- "refs/remotes/%.*s/HEAD",
int dwim_ref(const char *str, int len, unsigned char *sha1, char **ref)
const char **p, *r;
int refs_found = 0;
*ref = NULL;
- for (p = ref_fmt; *p; p++) {
+ for (p = ref_rev_parse_rules; *p; p++) {
unsigned char sha1_from_ref[20];
unsigned char *this_result;
@@ -277,7 +267,7 @@ int dwim_log(const char *str, int len, unsigned char *sha1, char **log)
int logs_found = 0;
*log = NULL;
- for (p = ref_fmt; *p; p++) {
+ for (p = ref_rev_parse_rules; *p; p++) {
struct stat st;
unsigned char hash[20];
char path[PATH_MAX];