checkout -m: do not try to fall back to --merge from an unborn branch

If switching from an unborn branch (= empty tree) to a valid commit failed
without -m, it would fail with -m option as well.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
maint
Junio C Hamano 2010-01-06 23:51:47 -08:00
parent 6e8f993a5a
commit 64da3ae5c1
1 changed files with 8 additions and 2 deletions

View File

@ -272,7 +272,7 @@ static int merge_working_tree(struct checkout_opts *opts,
topts.initial_checkout = is_cache_unborn();
topts.update = 1;
topts.merge = 1;
topts.gently = opts->merge;
topts.gently = opts->merge && old->commit;
topts.verbose_update = !opts->quiet;
topts.fn = twoway_merge;
topts.dir = xcalloc(1, sizeof(*topts.dir));
@ -294,7 +294,13 @@ static int merge_working_tree(struct checkout_opts *opts,
struct tree *work;
if (!opts->merge)
return 1;
parse_commit(old->commit);

/*
* Without old->commit, the below is the same as
* the two-tree unpack we already tried and failed.
*/
if (!old->commit)
return 1;

/* Do more real merge */