Allow merging bare trees in merge-recursive.

To support wider use cases, such as from within `git am -3`, the
merge-recursive utility needs to accept not just commit-ish but
also tree-ish as arguments on its command line.

If given a tree-ish then merge-recursive will create a virtual commit
wrapping it, with the subject of the commit set to the best name we
can derive for that tree, which is either the command line string
(probably the SHA1), or whatever string appears in GITHEAD_*.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Shawn O. Pearce 2006-12-28 02:35:24 -05:00 committed by Junio C Hamano
parent 7ba3c078c7
commit a970e84e8a

View File

@ -1268,6 +1268,9 @@ static struct commit *get_ref(const char *ref)
if (get_sha1(ref, sha1))
die("Could not resolve ref '%s'", ref);
object = deref_tag(parse_object(sha1), ref, strlen(ref));
if (object->type == OBJ_TREE)
return make_virtual_commit((struct tree*)object,
better_branch_name(ref));
if (object->type != OBJ_COMMIT)
return NULL;
if (parse_commit((struct commit *)object))