From 757d457907e3efa8eb911b772a690661cd432da5 Mon Sep 17 00:00:00 2001 From: Taylor Blau Date: Mon, 19 Sep 2022 21:55:45 -0400 Subject: midx.c: prevent `expire` from removing the cruft pack The `expire` sub-command unlinks any packs that are (a) contained in the MIDX, but (b) have no objects referenced by the MIDX. This sub-command ignores `.keep` packs, which remain on-disk even if they have no objects referenced by the MIDX. Cruft packs, however, aren't given the same treatment: if none of the objects contained in the cruft pack are selected from the cruft pack by the MIDX, then the cruft pack is eligible to be expired. This is less than desireable, since the cruft pack has important metadata about the individual object mtimes, which is useful to determine how quickly an object should age out of the repository when pruning. Ordinarily, we wouldn't expect the contents of a cruft pack to duplicated across non-cruft packs (and we'd expect to see the MIDX select all cruft objects from other sources even less often). But nonetheless, it is still possible to trick the `expire` sub-command into removing the `.mtimes` file in this circumstance. Teach the `expire` sub-command to ignore cruft packs in the same manner as it does `.keep` packs, in order to keep their metadata around, even when they are unreferenced by the MIDX. Signed-off-by: Taylor Blau Signed-off-by: Junio C Hamano --- midx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'midx.c') diff --git a/midx.c b/midx.c index c27d0e5f15..bff5b99933 100644 --- a/midx.c +++ b/midx.c @@ -1839,7 +1839,7 @@ int expire_midx_packs(struct repository *r, const char *object_dir, unsigned fla if (prepare_midx_pack(r, m, i)) continue; - if (m->packs[i]->pack_keep) + if (m->packs[i]->pack_keep || m->packs[i]->is_cruft) continue; pack_name = xstrdup(m->packs[i]->pack_name); -- cgit v1.2.3