From fb546d6e4395cedf46a81ce91213b61992b14ff5 Mon Sep 17 00:00:00 2001 From: Taylor Blau Date: Fri, 20 May 2022 19:17:57 -0400 Subject: [PATCH] reachable: report precise timestamps from objects in cruft packs When generating a cruft pack, the caller within pack-objects will want to know the precise timestamps of cruft objects (i.e., their corresponding values in the .mtimes table) rather than the mtime of the cruft pack itself. Teach add_recent_packed() to lookup each object's precise mtime from the .mtimes file if one exists (indicated by the is_cruft bit on the packed_git structure). A couple of small things worth noting here: - load_pack_mtimes() needs to be called before asking for nth_packed_mtime(), and that call is done lazily here. That function exits early if the .mtimes file has already been opened and parsed, so only the first call is slow. - Checking the is_cruft bit can be done without any extra work on the caller's behalf, since it is set up for us automatically as a side-effect of calling add_packed_git() (just like the 'pack_keep' and 'pack_promisor' bits). Signed-off-by: Taylor Blau Signed-off-by: Junio C Hamano --- reachable.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/reachable.c b/reachable.c index d4507c4270..aba63ebeb3 100644 --- a/reachable.c +++ b/reachable.c @@ -13,6 +13,7 @@ #include "worktree.h" #include "object-store.h" #include "pack-bitmap.h" +#include "pack-mtimes.h" struct connectivity_progress { struct progress *progress; @@ -155,6 +156,7 @@ static int add_recent_packed(const struct object_id *oid, void *data) { struct object *obj; + timestamp_t mtime = p->mtime; if (!want_recent_object(data, oid)) return 0; @@ -163,7 +165,12 @@ static int add_recent_packed(const struct object_id *oid, if (obj && obj->flags & SEEN) return 0; - add_recent_object(oid, p, nth_packed_object_offset(p, pos), p->mtime, data); + if (p->is_cruft) { + if (load_pack_mtimes(p) < 0) + die(_("could not load cruft pack .mtimes")); + mtime = nth_packed_mtime(p, pos); + } + add_recent_object(oid, p, nth_packed_object_offset(p, pos), mtime, data); return 0; }