Function test_bitmap_walk

pack-bitmap.c:2791–2860

}

void test_bitmap_walk(struct rev_info *revs)
{
	struct object *root;
	struct bitmap *result = NULL;
	size_t result_popcnt;
	struct bitmap_test_data tdata;
	struct bitmap_index *bitmap_git, *found;
	struct ewah_bitmap *bm;

	if (!(bitmap_git = prepare_bitmap_git(revs->repo)))
		die(_("failed to load bitmap indexes"));

	if (revs->pending.nr != 1)
		die(_("you must specify exactly one commit to test"));

	fprintf_ln(stderr, "Bitmap v%d test (%d entries%s, %d total)",
		bitmap_git->version,
		bitmap_git->entry_count,
		bitmap_git->table_lookup ? "" : " loaded",
		bitmap_total_entry_count(bitmap_git));

	root = revs->pending.objects[0].item;
	bm = find_bitmap_for_commit(bitmap_git, (struct commit *)root, &found);

	if (bm) {
		fprintf_ln(stderr, "Found bitmap for '%s'. %d bits / %08x checksum",
			oid_to_hex(&root->oid),
			(int)bm->bit_size, ewah_checksum(bm));

		if (bitmap_is_midx(found))
			fprintf_ln(stderr, "Located via MIDX '%s'.",
				   midx_get_checksum_hex(found->midx));
		else
			fprintf_ln(stderr, "Located via pack '%s'.",
				   hash_to_hex_algop(found->pack->hash,
						     revs->repo->hash_algo));

		result = ewah_to_bitmap(bm);
	}

	if (!result)
		die(_("commit '%s' doesn't have an indexed bitmap"), oid_to_hex(&root->oid));

	revs->tag_objects = 1;
	revs->tree_objects = 1;
	revs->blob_objects = 1;

	result_popcnt = bitmap_popcount(result);

	if (prepare_revision_walk(revs))
		die(_("revision walk setup failed"));

	bitmap_test_data_prepare(&tdata, bitmap_git);
	tdata.prg = start_progress(revs->repo,
				   "Verifying bitmap entries",
				   result_popcnt);

	traverse_commit_list(revs, &test_show_commit, &test_show_object, &tdata);