From: Junio C Hamano Date: Thu, 9 Apr 2009 06:21:10 +0000 (-0700) Subject: Merge branch 'jc/maint-1.6.0-keep-pack' into maint X-Git-Tag: v1.6.2.3~6 X-Git-Url: https://git.tokkee.org/?a=commitdiff_plain;h=c3067cbfb3fbab32177d5f61ea73127f08ab43cb;p=git.git Merge branch 'jc/maint-1.6.0-keep-pack' into maint * jc/maint-1.6.0-keep-pack: pack-objects: don't loosen objects available in alternate or kept packs t7700: demonstrate repack flaw which may loosen objects unnecessarily Remove --kept-pack-only option and associated infrastructure pack-objects: only repack or loosen objects residing in "local" packs git-repack.sh: don't use --kept-pack-only option to pack-objects t7700-repack: add two new tests demonstrating repacking flaws is_kept_pack(): final clean-up Simplify is_kept_pack() Consolidate ignore_packed logic more has_sha1_kept_pack(): take "struct rev_info" has_sha1_pack(): refactor "pretend these packs do not exist" interface git-repack: resist stray environment variable Conflicts: t/t7700-repack.sh --- c3067cbfb3fbab32177d5f61ea73127f08ab43cb diff --cc cache.h index 189151de2,23c16d0d9..50179687b --- a/cache.h +++ b/cache.h @@@ -836,10 -744,9 +836,9 @@@ extern const unsigned char *nth_packed_ extern off_t nth_packed_object_offset(const struct packed_git *, uint32_t); extern off_t find_pack_entry_one(const unsigned char *, struct packed_git *); extern void *unpack_entry(struct packed_git *, off_t, enum object_type *, unsigned long *); -extern unsigned long unpack_object_header_gently(const unsigned char *buf, unsigned long len, enum object_type *type, unsigned long *sizep); +extern unsigned long unpack_object_header_buffer(const unsigned char *buf, unsigned long len, enum object_type *type, unsigned long *sizep); extern unsigned long get_size_from_delta(struct packed_git *, struct pack_window **, off_t); extern const char *packed_object_info_detail(struct packed_git *, off_t, unsigned long *, unsigned long *, unsigned int *, unsigned char *); - extern int matches_pack_name(struct packed_git *p, const char *name); /* Dumb servers support */ extern int update_server_info(int); diff --cc sha1_file.c index a07aa4e5c,500fd9312..37e833b77 --- a/sha1_file.c +++ b/sha1_file.c @@@ -2046,17 -1956,10 +2019,17 @@@ int sha1_object_info(const unsigned cha /* Not a loose object; someone else may have just packed it. */ reprepare_packed_git(); - if (!find_pack_entry(sha1, &e, NULL)) + if (!find_pack_entry(sha1, &e)) return status; } - return packed_object_info(e.p, e.offset, sizep); + + status = packed_object_info(e.p, e.offset, sizep); + if (status < 0) { + mark_bad_packed_object(e.p, sha1); + status = sha1_object_info(sha1, sizep); + } + + return status; } static void *read_packed_sha1(const unsigned char *sha1, diff --cc t/t7700-repack.sh index f5682d66d,9ce546e3b..6b29bff78 --- a/t/t7700-repack.sh +++ b/t/t7700-repack.sh @@@ -69,24 -69,66 +69,85 @@@ test_expect_success 'packed obs in alt done ' +test_expect_failure 'packed obs in alt ODB are repacked when local repo has packs' ' + rm -f .git/objects/pack/* && + echo new_content >> file1 && + git add file1 && + git commit -m more_content && + git repack && + git repack -a -d && + myidx=$(ls -1 .git/objects/pack/*.idx) && + test -f "$myidx" && + for p in alt_objects/pack/*.idx; do + git verify-pack -v $p | sed -n -e "/^[0-9a-f]\{40\}/p" + done | while read sha1 rest; do + if ! ( git verify-pack -v $myidx | grep "^$sha1" ); then + echo "Missing object in local pack: $sha1" + return 1 + fi + done +' + + test_expect_success 'packed obs in alternate ODB kept pack are repacked' ' + # swap the .keep so the commit object is in the pack with .keep + for p in alt_objects/pack/*.pack + do + base_name=$(basename $p .pack) + if test -f alt_objects/pack/$base_name.keep + then + rm alt_objects/pack/$base_name.keep + else + touch alt_objects/pack/$base_name.keep + fi + done + git repack -a -d && + myidx=$(ls -1 .git/objects/pack/*.idx) && + test -f "$myidx" && + for p in alt_objects/pack/*.idx; do + git verify-pack -v $p | sed -n -e "/^[0-9a-f]\{40\}/p" + done | while read sha1 rest; do + if ! ( git verify-pack -v $myidx | grep "^$sha1" ); then + echo "Missing object in local pack: $sha1" + return 1 + fi + done + ' + + test_expect_success 'packed unreachable obs in alternate ODB are not loosened' ' + rm -f alt_objects/pack/*.keep && + mv .git/objects/pack/* alt_objects/pack/ && + csha1=$(git rev-parse HEAD^{commit}) && + git reset --hard HEAD^ && + sleep 1 && + git reflog expire --expire=now --expire-unreachable=now --all && + # The pack-objects call on the next line is equivalent to + # git repack -A -d without the call to prune-packed + git pack-objects --honor-pack-keep --non-empty --all --reflog \ + --unpack-unreachable .git/objects/info/alternates && + test_must_fail git show $csha1 + ' + + test_expect_success 'local packed unreachable obs that exist in alternate ODB are not loosened' ' + echo `pwd`/alt_objects > .git/objects/info/alternates && + echo "$csha1" | git pack-objects --non-empty --all --reflog pack && + rm -f .git/objects/pack/* && + mv pack-* .git/objects/pack/ && + # The pack-objects call on the next line is equivalent to + # git repack -A -d without the call to prune-packed + git pack-objects --honor-pack-keep --non-empty --all --reflog \ + --unpack-unreachable .git/objects/info/alternates && + test_must_fail git show $csha1 + ' + test_done