From af626ac0e02570e3afac8b4238199157181d43c2 Mon Sep 17 00:00:00 2001 From: Taylor Blau Date: Thu, 14 Dec 2023 17:24:44 -0500 Subject: pack-bitmap: enable reuse from all bitmapped packs Now that both the pack-bitmap and pack-objects code are prepared to handle marking and using objects from multiple bitmapped packs for verbatim reuse, allow marking objects from all bitmapped packs as eligible for reuse. Within the `reuse_partial_packfile_from_bitmap()` function, we no longer only mark the pack whose first object is at bit position zero for reuse, and instead mark any pack contained in the MIDX as a reuse candidate. Provide a handful of test cases in a new script (t5332) exercising interesting behavior for multi-pack reuse to ensure that we performed all of the previous steps correctly. Signed-off-by: Taylor Blau Signed-off-by: Junio C Hamano --- builtin/pack-objects.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'builtin') diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c index 684698f679..5d3c42035b 100644 --- a/builtin/pack-objects.c +++ b/builtin/pack-objects.c @@ -232,6 +232,7 @@ static int use_bitmap_index = -1; static enum { NO_PACK_REUSE = 0, SINGLE_PACK_REUSE, + MULTI_PACK_REUSE, } allow_pack_reuse = SINGLE_PACK_REUSE; static enum { WRITE_BITMAP_FALSE = 0, @@ -3251,6 +3252,8 @@ static int git_pack_config(const char *k, const char *v, if (res < 0) { if (!strcasecmp(v, "single")) allow_pack_reuse = SINGLE_PACK_REUSE; + else if (!strcasecmp(v, "multi")) + allow_pack_reuse = MULTI_PACK_REUSE; else die(_("invalid pack.allowPackReuse value: '%s'"), v); } else if (res) { @@ -4029,7 +4032,8 @@ static int get_object_list_from_bitmap(struct rev_info *revs) reuse_partial_packfile_from_bitmap(bitmap_git, &reuse_packfiles, &reuse_packfiles_nr, - &reuse_packfile_bitmap); + &reuse_packfile_bitmap, + allow_pack_reuse == MULTI_PACK_REUSE); if (reuse_packfiles) { reuse_packfile_objects = bitmap_popcount(reuse_packfile_bitmap); -- cgit v1.2.3