diff options
| author |  Jeff King <peff@peff.net> | 2012-04-07 06:30:09 -0400 |
|---|---|---|
| committer |  Junio C Hamano <gitster@pobox.com> | 2012-04-11 11:09:49 -0700 |
| commit | 7e52f5660e542cf801e8fc6902a30cc572c13736 (patch) | |
| tree | 203e0339a37a81deb5ff7c65e933ae197e91a0d1 /builtin/pack-objects.c | |
| parent | Git 1.7.10 (diff) | |
| download | tgif-7e52f5660e542cf801e8fc6902a30cc572c13736.tar.xz | |
gc: do not explode objects which will be immediately pruned
When we pack everything into one big pack with "git repack
-Ad", any unreferenced objects in to-be-deleted packs are
exploded into loose objects, with the intent that they will
be examined and possibly cleaned up by the next run of "git
prune".
Since the exploded objects will receive the mtime of the
pack from which they come, if the source pack is old, those
loose objects will end up pruned immediately. In that case,
it is much more efficient to skip the exploding step
entirely for these objects.
This patch teaches pack-objects to receive the expiration
information and avoid writing these objects out. It also
teaches "git gc" to pass the value of gc.pruneexpire to
repack (which in turn learns to pass it along to
pack-objects) so that this optimization happens
automatically during "git gc" and "git gc --auto".
Signed-off-by: Jeff King <peff@peff.net>
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin/pack-objects.c')
| -rw-r--r-- | builtin/pack-objects.c | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c index 7b07c092cc..1861093e9d 100644 --- a/builtin/pack-objects.c +++ b/builtin/pack-objects.c @@ -63,6 +63,7 @@ static uint32_t nr_objects, nr_alloc, nr_result, nr_written; static int non_empty; static int reuse_delta = 1, reuse_object = 1; static int keep_unreachable, unpack_unreachable, include_tag; +static unsigned long unpack_unreachable_expiration; static int local; static int incremental; static int ignore_packed_keep; @@ -2249,6 +2250,10 @@ static void loosen_unused_packed_objects(struct rev_info *revs) if (!p->pack_local || p->pack_keep) continue; + if (unpack_unreachable_expiration && + p->mtime < unpack_unreachable_expiration) + continue; + if (open_pack_index(p)) die("cannot open pack index"); @@ -2315,6 +2320,21 @@ static int option_parse_index_version(const struct option *opt, return 0; } +static int option_parse_unpack_unreachable(const struct option *opt, + const char *arg, int unset) +{ + if (unset) { + unpack_unreachable = 0; + unpack_unreachable_expiration = 0; + } + else { + unpack_unreachable = 1; + if (arg) + unpack_unreachable_expiration = approxidate(arg); + } + return 0; +} + static int option_parse_ulong(const struct option *opt, const char *arg, int unset) { @@ -2392,8 +2412,9 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix) "include tag objects that refer to objects to be packed"), OPT_BOOL(0, "keep-unreachable", &keep_unreachable, "keep unreachable objects"), - OPT_BOOL(0, "unpack-unreachable", &unpack_unreachable, - "unpack unreachable objects"), + { OPTION_CALLBACK, 0, "unpack-unreachable", NULL, "time", + "unpack unreachable objects newer than <time>", + PARSE_OPT_OPTARG, option_parse_unpack_unreachable }, OPT_BOOL(0, "thin", &thin, "create thin packs"), OPT_BOOL(0, "honor-pack-keep", &ignore_packed_keep, |