From: Junio C Hamano Date: Mon, 17 Sep 2007 06:20:07 +0000 (-0700) Subject: pack-objects --keep-unreachable X-Git-Tag: v1.5.4-rc0~390^2~6 X-Git-Url: https://git.tokkee.org/?a=commitdiff_plain;h=08cdfb13374f31b0c1c47444f55042e7b72c3190;p=git.git pack-objects --keep-unreachable This new option is meant to be used in conjunction with the options "git repack -a -d" usually invokes the underlying pack-objects with. When this option is given, objects unreachable from the refs in packs named with --unpacked= option are added to the resulting pack, in addition to the reachable objects that are not in packs marked with *.keep files. Signed-off-by: Junio C Hamano --- diff --git a/builtin-pack-objects.c b/builtin-pack-objects.c index 12509faa7..ba7c8da5b 100644 --- a/builtin-pack-objects.c +++ b/builtin-pack-objects.c @@ -21,7 +21,7 @@ git-pack-objects [{ -q | --progress | --all-progress }] \n\ [--window=N] [--window-memory=N] [--depth=N] \n\ [--no-reuse-delta] [--no-reuse-object] [--delta-base-offset] \n\ [--non-empty] [--revs [--unpacked | --all]*] [--reflog] \n\ - [--stdout | base-name] [object.sha1, OBJ_COMMIT, NULL, 0); + commit->object.flags |= OBJECT_ADDED; } static void show_object(struct object_array_entry *p) { add_preferred_base_object(p->name); add_object_entry(p->item->sha1, p->item->type, p->name, 0); + p->item->flags |= OBJECT_ADDED; } static void show_edge(struct commit *commit) @@ -1641,6 +1645,86 @@ static void show_edge(struct commit *commit) add_preferred_base(commit->object.sha1); } +struct in_pack_object { + off_t offset; + struct object *object; +}; + +struct in_pack { + int alloc; + int nr; + struct in_pack_object *array; +}; + +static void mark_in_pack_object(struct object *object, struct packed_git *p, struct in_pack *in_pack) +{ + in_pack->array[in_pack->nr].offset = find_pack_entry_one(object->sha1, p); + in_pack->array[in_pack->nr].object = object; + in_pack->nr++; +} + +/* + * Compare the objects in the offset order, in order to emulate the + * "git-rev-list --objects" output that produced the pack originally. + */ +static int ofscmp(const void *a_, const void *b_) +{ + struct in_pack_object *a = (struct in_pack_object *)a_; + struct in_pack_object *b = (struct in_pack_object *)b_; + + if (a->offset < b->offset) + return -1; + else if (a->offset > b->offset) + return 1; + else + return hashcmp(a->object->sha1, b->object->sha1); +} + +static void add_objects_in_unpacked_packs(struct rev_info *revs) +{ + struct packed_git *p; + struct in_pack in_pack; + uint32_t i; + + memset(&in_pack, 0, sizeof(in_pack)); + + for (p = packed_git; p; p = p->next) { + const unsigned char *sha1; + struct object *o; + + for (i = 0; i < revs->num_ignore_packed; i++) { + if (matches_pack_name(p, revs->ignore_packed[i])) + break; + } + if (revs->num_ignore_packed <= i) + continue; + if (open_pack_index(p)) + die("cannot open pack index"); + + ALLOC_GROW(in_pack.array, + in_pack.nr + p->num_objects, + in_pack.alloc); + + for (i = 0; i < p->num_objects; i++) { + sha1 = nth_packed_object_sha1(p, i); + o = lookup_unknown_object(sha1); + if (!(o->flags & OBJECT_ADDED)) + mark_in_pack_object(o, p, &in_pack); + o->flags |= OBJECT_ADDED; + } + } + + if (in_pack.nr) { + qsort(in_pack.array, in_pack.nr, sizeof(in_pack.array[0]), + ofscmp); + for (i = 0; i < in_pack.nr; i++) { + struct object *o = in_pack.array[i].object; + add_object_entry(o->sha1, o->type, "", 0); + } + } + free(in_pack.array); +} + static void get_object_list(int ac, const char **av) { struct rev_info revs; @@ -1672,6 +1756,9 @@ static void get_object_list(int ac, const char **av) prepare_revision_walk(&revs); mark_edges_uninteresting(revs.commits, &revs, show_edge); traverse_commit_list(&revs, show_commit, show_object); + + if (keep_unreachable) + add_objects_in_unpacked_packs(&revs); } static int adjust_perm(const char *path, mode_t mode) @@ -1789,6 +1876,10 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix) use_internal_rev_list = 1; continue; } + if (!strcmp("--keep-unreachable", arg)) { + keep_unreachable = 1; + continue; + } if (!strcmp("--unpacked", arg) || !prefixcmp(arg, "--unpacked=") || !strcmp("--reflog", arg) ||