[PATCH v2 3/6] merge: fix save_state() to work when there are racy-dirty files

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From: Elijah Newren <newren@xxxxxxxxx>

When there are racy-dirty files, but no files are modified,
`git stash create` exits with unsuccessful status.  This causes merge
to fail.  Refresh the index first to avoid this problem.

Signed-off-by: Elijah Newren <newren@xxxxxxxxx>
---
 builtin/merge.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/builtin/merge.c b/builtin/merge.c
index 00de224a2da..8ce4336dd3f 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;
-- 
gitgitgadget




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