From c33fa871a5c89091cfc89fd7b6ef504d2d48bef2 Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Thu, 14 Sep 2023 14:46:46 -0700 Subject: cache: add fake_lstat() At times, we may already know that a path represented by a cache_entry ce has no changes via some out-of-line means, like fsmonitor, and yet need the control to go through a codepath that requires us to have "struct stat" obtained by lstat() on the path, for various purposes (e.g. "ie_match_stat()" wants cached stat-info is still current wrt "struct stat", "diff" wants to know st_mode). The callers of lstat() on a tracked file, when its cache_entry knows it is up-to-date, can instead call this helper to pretend that it called lstat() by faking the "struct stat" information. Signed-off-by: Junio C Hamano --- statinfo.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'statinfo.h') diff --git a/statinfo.h b/statinfo.h index 700f502ac0..5b21a30f90 100644 --- a/statinfo.h +++ b/statinfo.h @@ -46,6 +46,14 @@ struct stat_validity { */ void fill_stat_data(struct stat_data *sd, struct stat *st); +/* + * The inverse of the above. When we know the cache_entry that + * contains sd is up-to-date, but still need to pretend we called + * lstat() to learn that fact, this function fills "st" enough to + * fool ie_match_stat(). + */ +void fake_lstat_data(const struct stat_data *sd, struct stat *st); + /* * Return 0 if st is consistent with a file not having been changed * since sd was filled. If there are differences, return a -- cgit v1.2.3