merge: fix save_state() to work when there are stat-dirty files
When there are stat-dirty files, but no files are modified,
`git stash create` exits with unsuccessful status. This causes merge
to fail. Copy some code from sequencer.c's create_autostash to refresh
the index first to avoid this problem.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/builtin/merge.c b/builtin/merge.c
index c120ad6..780b4b9 100644
--- a/builtin/merge.c
+++ b/builtin/merge.c
@@ -313,8 +313,16 @@ static int save_state(struct object_id *stash)
int len;
struct child_process cp = CHILD_PROCESS_INIT;
struct strbuf buffer = STRBUF_INIT;
+ struct lock_file lock_file = LOCK_INIT;
+ int fd;
int rc = -1;
+ fd = repo_hold_locked_index(the_repository, &lock_file, 0);
+ refresh_cache(REFRESH_QUIET);
+ if (0 <= fd)
+ repo_update_index_if_able(the_repository, &lock_file);
+ rollback_lock_file(&lock_file);
+
strvec_pushl(&cp.args, "stash", "create", NULL);
cp.out = -1;
cp.git_cmd = 1;
diff --git a/t/t6424-merge-unrelated-index-changes.sh b/t/t6424-merge-unrelated-index-changes.sh
index 615061c..2c83210 100755
--- a/t/t6424-merge-unrelated-index-changes.sh
+++ b/t/t6424-merge-unrelated-index-changes.sh
@@ -275,6 +275,17 @@
test_path_is_missing .git/MERGE_HEAD
'
+test_expect_success 'avoid failure due to stat-dirty files' '
+ git reset --hard &&
+ git checkout B^0 &&
+
+ # Make "a" be stat-dirty
+ test-tool chmtime =+1 a &&
+
+ # stat-dirty file should not prevent stash creation in builtin/merge.c
+ git merge -s resolve -s recursive D^0
+'
+
test_expect_success 'with multiple strategies, recursive or ort failure do not early abort' '
git reset --hard &&
git checkout B^0 &&
