The `multi_pack_index` struct represents the MIDX for a repository. Here, we add a pointer to the repository in this struct, allowing direct use of the repository variable without relying on the global `the_repository` struct. With this addition, we can determine the repository associated with a `bitmap_index` struct. A `bitmap_index` points to either a `packed_git` or a `multi_pack_index`, both of which have direct repository references. To support this, we introduce a static helper function, `bitmap_repo`, in `pack-bitmap.c`, which retrieves a repository given a `bitmap_index`. With this, we clear up all usages of `the_repository` within `pack-bitmap.c` and also remove the `USE_THE_REPOSITORY_VARIABLE` definition. Bringing us another step closer to remove all global variable usage. Although this change also opens up the potential to clean up `midx.c`, doing so would require additional refactoring to pass the repository struct to functions where the MIDX struct is created: a task better suited for future patches. Signed-off-by: Karthik Nayak <karthik.188@xxxxxxxxx> --- midx.c | 1 + midx.h | 3 ++ pack-bitmap.c | 90 +++++++++++++++++++++++++++++++-------------------- 3 files changed, 59 insertions(+), 35 deletions(-) diff --git a/midx.c b/midx.c index 8edb75f51d..079c45a1aa 100644 --- a/midx.c +++ b/midx.c @@ -131,6 +131,7 @@ static struct multi_pack_index *load_multi_pack_index_one(const char *object_dir m->data = midx_map; m->data_len = midx_size; m->local = local; + m->repo = the_repository; m->signature = get_be32(m->data); if (m->signature != MIDX_SIGNATURE) diff --git a/midx.h b/midx.h index 42d4f8d149..3b0ac4d878 100644 --- a/midx.h +++ b/midx.h @@ -71,6 +71,9 @@ struct multi_pack_index { const char **pack_names; struct packed_git **packs; + + struct repository *repo; + char object_dir[FLEX_ARRAY]; }; diff --git a/pack-bitmap.c b/pack-bitmap.c index d34ba9909a..0cb1b56c9d 100644 --- a/pack-bitmap.c +++ b/pack-bitmap.c @@ -1,5 +1,3 @@ -#define USE_THE_REPOSITORY_VARIABLE - #include "git-compat-util.h" #include "commit.h" #include "gettext.h" @@ -177,12 +175,21 @@ static uint32_t bitmap_num_objects(struct bitmap_index *index) return index->pack->num_objects; } +static struct repository *bitmap_repo(struct bitmap_index *bitmap_git) +{ + if (bitmap_is_midx(bitmap_git)) + return bitmap_git->midx->repo; + return bitmap_git->pack->repo; +} + static int load_bitmap_header(struct bitmap_index *index) { struct bitmap_disk_header *header = (void *)index->map; - size_t header_size = sizeof(*header) - GIT_MAX_RAWSZ + the_hash_algo->rawsz; + const struct git_hash_algo *hash_algo = bitmap_repo(index)->hash_algo; + + size_t header_size = sizeof(*header) - GIT_MAX_RAWSZ + hash_algo->rawsz; - if (index->map_size < header_size + the_hash_algo->rawsz) + if (index->map_size < header_size + hash_algo->rawsz) return error(_("corrupted bitmap index (too small)")); if (memcmp(header->magic, BITMAP_IDX_SIGNATURE, sizeof(BITMAP_IDX_SIGNATURE)) != 0) @@ -196,7 +203,7 @@ static int load_bitmap_header(struct bitmap_index *index) { uint32_t flags = ntohs(header->options); size_t cache_size = st_mult(bitmap_num_objects(index), sizeof(uint32_t)); - unsigned char *index_end = index->map + index->map_size - the_hash_algo->rawsz; + unsigned char *index_end = index->map + index->map_size - hash_algo->rawsz; if ((flags & BITMAP_OPT_FULL_DAG) == 0) BUG("unsupported options for bitmap index file " @@ -409,7 +416,7 @@ static int open_midx_bitmap_1(struct bitmap_index *bitmap_git, if (bitmap_git->pack || bitmap_git->midx) { struct strbuf buf = STRBUF_INIT; get_midx_filename(&buf, midx->object_dir); - trace2_data_string("bitmap", the_repository, + trace2_data_string("bitmap", bitmap_repo(bitmap_git), "ignoring extra midx bitmap file", buf.buf); close(fd); strbuf_release(&buf); @@ -427,7 +434,7 @@ static int open_midx_bitmap_1(struct bitmap_index *bitmap_git, goto cleanup; if (!hasheq(get_midx_checksum(bitmap_git->midx), bitmap_git->checksum, - the_repository->hash_algo)) { + bitmap_repo(bitmap_git)->hash_algo)) { error(_("checksum doesn't match in MIDX and bitmap")); goto cleanup; } @@ -438,7 +445,9 @@ static int open_midx_bitmap_1(struct bitmap_index *bitmap_git, } for (i = 0; i < bitmap_git->midx->num_packs; i++) { - if (prepare_midx_pack(the_repository, bitmap_git->midx, i)) { + if (prepare_midx_pack(bitmap_repo(bitmap_git), + bitmap_git->midx, + i)) { warning(_("could not open pack %s"), bitmap_git->midx->pack_names[i]); goto cleanup; @@ -492,8 +501,9 @@ static int open_pack_bitmap_1(struct bitmap_index *bitmap_git, struct packed_git } if (bitmap_git->pack || bitmap_git->midx) { - trace2_data_string("bitmap", the_repository, - "ignoring extra bitmap file", packfile->pack_name); + trace2_data_string("bitmap", bitmap_repo(bitmap_git), + "ignoring extra bitmap file", + packfile->pack_name); close(fd); return -1; } @@ -518,8 +528,8 @@ static int open_pack_bitmap_1(struct bitmap_index *bitmap_git, struct packed_git return -1; } - trace2_data_string("bitmap", the_repository, "opened bitmap file", - packfile->pack_name); + trace2_data_string("bitmap", bitmap_repo(bitmap_git), + "opened bitmap file", packfile->pack_name); return 0; } @@ -649,7 +659,7 @@ struct bitmap_index *prepare_bitmap_git(struct repository *r) struct bitmap_index *prepare_midx_bitmap_git(struct multi_pack_index *midx) { - struct repository *r = the_repository; + struct repository *r = midx->repo; struct bitmap_index *bitmap_git = xcalloc(1, sizeof(*bitmap_git)); if (!open_midx_bitmap_1(bitmap_git, midx) && !load_bitmap(r, bitmap_git)) @@ -1213,6 +1223,7 @@ static struct bitmap *find_boundary_objects(struct bitmap_index *bitmap_git, { struct bitmap_boundary_cb cb; struct object_list *root; + struct repository *repo; unsigned int i; unsigned int tmp_blobs, tmp_trees, tmp_tags; int any_missing = 0; @@ -1222,6 +1233,8 @@ static struct bitmap *find_boundary_objects(struct bitmap_index *bitmap_git, cb.base = bitmap_new(); object_array_init(&cb.boundary); + repo = bitmap_repo(bitmap_git); + revs->ignore_missing_links = 1; if (bitmap_git->pseudo_merges.nr) { @@ -1280,19 +1293,19 @@ static struct bitmap *find_boundary_objects(struct bitmap_index *bitmap_git, * revision walk to (a) OR in any bitmaps that are UNINTERESTING * between the tips and boundary, and (b) record the boundary. */ - trace2_region_enter("pack-bitmap", "boundary-prepare", the_repository); + trace2_region_enter("pack-bitmap", "boundary-prepare", repo); if (prepare_revision_walk(revs)) die("revision walk setup failed"); - trace2_region_leave("pack-bitmap", "boundary-prepare", the_repository); + trace2_region_leave("pack-bitmap", "boundary-prepare", repo); - trace2_region_enter("pack-bitmap", "boundary-traverse", the_repository); + trace2_region_enter("pack-bitmap", "boundary-traverse", repo); revs->boundary = 1; traverse_commit_list_filtered(revs, show_boundary_commit, show_boundary_object, &cb, NULL); revs->boundary = 0; - trace2_region_leave("pack-bitmap", "boundary-traverse", the_repository); + trace2_region_leave("pack-bitmap", "boundary-traverse", repo); revs->blob_objects = tmp_blobs; revs->tree_objects = tmp_trees; @@ -1304,7 +1317,7 @@ static struct bitmap *find_boundary_objects(struct bitmap_index *bitmap_git, /* * Then add the boundary commit(s) as fill-in traversal tips. */ - trace2_region_enter("pack-bitmap", "boundary-fill-in", the_repository); + trace2_region_enter("pack-bitmap", "boundary-fill-in", repo); for (i = 0; i < cb.boundary.nr; i++) { struct object *obj = cb.boundary.objects[i].item; if (bitmap_walk_contains(bitmap_git, cb.base, &obj->oid)) @@ -1314,7 +1327,7 @@ static struct bitmap *find_boundary_objects(struct bitmap_index *bitmap_git, } if (revs->pending.nr) cb.base = fill_in_bitmap(bitmap_git, revs, cb.base, NULL); - trace2_region_leave("pack-bitmap", "boundary-fill-in", the_repository); + trace2_region_leave("pack-bitmap", "boundary-fill-in", repo); cleanup: object_array_clear(&cb.boundary); @@ -1718,7 +1731,8 @@ static unsigned long get_size_by_pos(struct bitmap_index *bitmap_git, ofs = pack_pos_to_offset(pack, pos); } - if (packed_object_info(the_repository, pack, ofs, &oi) < 0) { + if (packed_object_info(bitmap_repo(bitmap_git), pack, ofs, + &oi) < 0) { struct object_id oid; nth_bitmap_object_oid(bitmap_git, &oid, pack_pos_to_index(pack, pos)); @@ -1727,7 +1741,8 @@ static unsigned long get_size_by_pos(struct bitmap_index *bitmap_git, } else { struct eindex *eindex = &bitmap_git->ext_index; struct object *obj = eindex->objects[pos - bitmap_num_objects(bitmap_git)]; - if (oid_object_info_extended(the_repository, &obj->oid, &oi, 0) < 0) + if (oid_object_info_extended(bitmap_repo(bitmap_git), &obj->oid, + &oi, 0) < 0) die(_("unable to get size of %s"), oid_to_hex(&obj->oid)); } @@ -1889,7 +1904,8 @@ static void filter_packed_objects_from_bitmap(struct bitmap_index *bitmap_git, bitmap_unset(result, i); for (i = 0; i < eindex->count; ++i) { - if (has_object_pack(the_repository, &eindex->objects[i]->oid)) + if (has_object_pack(bitmap_repo(bitmap_git), + &eindex->objects[i]->oid)) bitmap_unset(result, objects_nr + i); } } @@ -1907,6 +1923,7 @@ struct bitmap_index *prepare_bitmap_walk(struct rev_info *revs, struct bitmap *haves_bitmap = NULL; struct bitmap_index *bitmap_git; + struct repository *repo; /* * We can't do pathspec limiting with bitmaps, because we don't know @@ -1980,18 +1997,20 @@ struct bitmap_index *prepare_bitmap_walk(struct rev_info *revs, if (!use_boundary_traversal) object_array_clear(&revs->pending); + repo = bitmap_repo(bitmap_git); + if (haves) { if (use_boundary_traversal) { - trace2_region_enter("pack-bitmap", "haves/boundary", the_repository); + trace2_region_enter("pack-bitmap", "haves/boundary", repo); haves_bitmap = find_boundary_objects(bitmap_git, revs, haves); - trace2_region_leave("pack-bitmap", "haves/boundary", the_repository); + trace2_region_leave("pack-bitmap", "haves/boundary", repo); } else { - trace2_region_enter("pack-bitmap", "haves/classic", the_repository); + trace2_region_enter("pack-bitmap", "haves/classic", repo); revs->ignore_missing_links = 1; haves_bitmap = find_objects(bitmap_git, revs, haves, NULL); reset_revision_walk(); revs->ignore_missing_links = 0; - trace2_region_leave("pack-bitmap", "haves/classic", the_repository); + trace2_region_leave("pack-bitmap", "haves/classic", repo); } if (!haves_bitmap) @@ -2025,17 +2044,17 @@ struct bitmap_index *prepare_bitmap_walk(struct rev_info *revs, object_list_free(&wants); object_list_free(&haves); - trace2_data_intmax("bitmap", the_repository, "pseudo_merges_satisfied", + trace2_data_intmax("bitmap", repo, "pseudo_merges_satisfied", pseudo_merges_satisfied_nr); - trace2_data_intmax("bitmap", the_repository, "pseudo_merges_cascades", + trace2_data_intmax("bitmap", repo, "pseudo_merges_cascades", pseudo_merges_cascades_nr); - trace2_data_intmax("bitmap", the_repository, "bitmap/hits", + trace2_data_intmax("bitmap", repo, "bitmap/hits", existing_bitmaps_hits_nr); - trace2_data_intmax("bitmap", the_repository, "bitmap/misses", + trace2_data_intmax("bitmap", repo, "bitmap/misses", existing_bitmaps_misses_nr); - trace2_data_intmax("bitmap", the_repository, "bitmap/roots_with_bitmap", + trace2_data_intmax("bitmap", repo, "bitmap/roots_with_bitmap", roots_with_bitmaps_nr); - trace2_data_intmax("bitmap", the_repository, "bitmap/roots_without_bitmap", + trace2_data_intmax("bitmap", repo, "bitmap/roots_without_bitmap", roots_without_bitmaps_nr); return bitmap_git; @@ -2256,7 +2275,7 @@ void reuse_partial_packfile_from_bitmap(struct bitmap_index *bitmap_git, struct bitmap **reuse_out, int multi_pack_reuse) { - struct repository *r = the_repository; + struct repository *r = bitmap_repo(bitmap_git); struct bitmapped_pack *packs = NULL; struct bitmap *result = bitmap_git->result; struct bitmap *reuse; @@ -2792,7 +2811,7 @@ int rebuild_bitmap(const uint32_t *reposition, uint32_t *create_bitmap_mapping(struct bitmap_index *bitmap_git, struct packing_data *mapping) { - struct repository *r = the_repository; + struct repository *r = bitmap_repo(bitmap_git); uint32_t i, num_objects; uint32_t *reposition; @@ -2948,7 +2967,8 @@ static off_t get_disk_usage_for_extended(struct bitmap_index *bitmap_git) st_add(bitmap_num_objects(bitmap_git), i))) continue; - if (oid_object_info_extended(the_repository, &obj->oid, &oi, 0) < 0) + if (oid_object_info_extended(bitmap_repo(bitmap_git), &obj->oid, + &oi, 0) < 0) die(_("unable to get disk usage of '%s'"), oid_to_hex(&obj->oid)); -- 2.47.0