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sha1_name.c: understand "describe" output as a valid object name

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Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Junio C Hamano 2006-09-20 16:11:08 -07:00
parent e49521b56d
commit 7dd45e15c2
1 changed files with 26 additions and 0 deletions
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26
sha1_name.c
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@ -431,6 +431,26 @@ static int peel_onion(const char *name, int len, unsigned char *sha1)
return 0;
}
static int get_describe_name(const char *name, int len, unsigned char *sha1)
{
const char *cp;
for (cp = name + len - 1; name + 2 <= cp; cp--) {
char ch = *cp;
if (hexval(ch) & ~0377) {
/* We must be looking at g in "SOMETHING-g"
* for it to be describe output.
*/
if (ch == 'g' && cp[-1] == '-') {
cp++;
len -= cp - name;
return get_short_sha1(cp, len, sha1, 1);
}
}
}
return -1;
}
static int get_sha1_1(const char *name, int len, unsigned char *sha1)
{
int ret, has_suffix;
@ -472,6 +492,12 @@ static int get_sha1_1(const char *name, int len, unsigned char *sha1)
ret = get_sha1_basic(name, len, sha1);
if (!ret)
return 0;
/* It could be describe output that is "SOMETHING-gXXXX" */
ret = get_describe_name(name, len, sha1);
if (!ret)
return 0;
return get_short_sha1(name, len, sha1, 0);
}