mirror of
https://github.com/git/git
synced 2024-08-28 20:20:07 +00:00
Merge branch 'jc/xsha1'
* jc/xsha1: get_sha1() - fix infinite loop on nonexistent stage. get_sha1(): :path and :[0-3]:path to extract from index.
This commit is contained in:
commit
b9895c0688
47
sha1_name.c
47
sha1_name.c
|
@ -458,17 +458,56 @@ int get_sha1(const char *name, unsigned char *sha1)
|
|||
{
|
||||
int ret;
|
||||
unsigned unused;
|
||||
int namelen = strlen(name);
|
||||
const char *cp;
|
||||
|
||||
prepare_alt_odb();
|
||||
ret = get_sha1_1(name, strlen(name), sha1);
|
||||
if (ret < 0) {
|
||||
const char *cp = strchr(name, ':');
|
||||
ret = get_sha1_1(name, namelen, sha1);
|
||||
if (!ret)
|
||||
return ret;
|
||||
/* sha1:path --> object name of path in ent sha1
|
||||
* :path -> object name of path in index
|
||||
* :[0-3]:path -> object name of path in index at stage
|
||||
*/
|
||||
if (name[0] == ':') {
|
||||
int stage = 0;
|
||||
struct cache_entry *ce;
|
||||
int pos;
|
||||
if (namelen < 3 ||
|
||||
name[2] != ':' ||
|
||||
name[1] < '0' || '3' < name[1])
|
||||
cp = name + 1;
|
||||
else {
|
||||
stage = name[1] - '0';
|
||||
cp = name + 3;
|
||||
}
|
||||
namelen = namelen - (cp - name);
|
||||
if (!active_cache)
|
||||
read_cache();
|
||||
if (active_nr < 0)
|
||||
return -1;
|
||||
pos = cache_name_pos(cp, namelen);
|
||||
if (pos < 0)
|
||||
pos = -pos - 1;
|
||||
while (pos < active_nr) {
|
||||
ce = active_cache[pos];
|
||||
if (ce_namelen(ce) != namelen ||
|
||||
memcmp(ce->name, cp, namelen))
|
||||
break;
|
||||
if (ce_stage(ce) == stage) {
|
||||
memcpy(sha1, ce->sha1, 20);
|
||||
return 0;
|
||||
}
|
||||
pos++;
|
||||
}
|
||||
return -1;
|
||||
}
|
||||
cp = strchr(name, ':');
|
||||
if (cp) {
|
||||
unsigned char tree_sha1[20];
|
||||
if (!get_sha1_1(name, cp-name, tree_sha1))
|
||||
return get_tree_entry(tree_sha1, cp+1, sha1,
|
||||
&unused);
|
||||
}
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
|
Loading…
Reference in a new issue