Merge branch 'ps/remove-packfile-store-get-packs' into seen

Two slightly different ways to get at "all the packfiles" in API
has been cleaned up.

Comments?

* ps/remove-packfile-store-get-packs:
  packfile: rename `packfile_store_get_all_packs()`
  packfile: introduce macro to iterate through packs
  packfile: drop `packfile_store_get_packs()`
  builtin/grep: simplify how we preload packs
  builtin/gc: convert to use `packfile_store_get_all_packs()`
  object-name: convert to use `packfile_store_get_all_packs()`

Author: gitster

builtin/cat-file.c

@@ -852,10 +852,9 @@ static void batch_each_object(struct batch_options *opt,
 
 	if (bitmap && !for_each_bitmapped_object(bitmap, &opt->objects_filter,
 						 batch_one_object_bitmapped, &payload)) {
-		struct packfile_store *packs = the_repository->objects->packfiles;
 		struct packed_git *pack;
 
-		for (pack = packfile_store_get_all_packs(packs); pack; pack = pack->next) {
+		repo_for_each_pack(the_repository, pack) {
 			if (bitmap_index_contains_pack(bitmap, pack) ||
 			    open_pack_index(pack))
 				continue;

builtin/count-objects.c

@@ -122,15 +122,14 @@ int cmd_count_objects(int argc,
 				      count_loose, count_cruft, NULL, NULL);
 
 	if (verbose) {
-		struct packfile_store *packs = the_repository->objects->packfiles;
 		struct packed_git *p;
 		unsigned long num_pack = 0;
 		off_t size_pack = 0;
 		struct strbuf loose_buf = STRBUF_INIT;
 		struct strbuf pack_buf = STRBUF_INIT;
 		struct strbuf garbage_buf = STRBUF_INIT;
 
-		for (p = packfile_store_get_all_packs(packs); p; p = p->next) {
+		repo_for_each_pack(the_repository, p) {
 			if (!p->pack_local)
 				continue;
 			if (open_pack_index(p))

builtin/fast-import.c

@@ -979,7 +979,7 @@ static int store_object(
 	if (e->idx.offset) {
 		duplicate_count_by_type[type]++;
 		return 1;
-	} else if (find_oid_pack(&oid, packfile_store_get_all_packs(packs))) {
+	} else if (find_oid_pack(&oid, packfile_store_get_packs(packs))) {
 		e->type = type;
 		e->pack_id = MAX_PACK_ID;
 		e->idx.offset = 1; /* just not zero! */
@@ -1180,7 +1180,7 @@ static void stream_blob(uintmax_t len, struct object_id *oidout, uintmax_t mark)
 		duplicate_count_by_type[OBJ_BLOB]++;
 		truncate_pack(&checkpoint);
 
-	} else if (find_oid_pack(&oid, packfile_store_get_all_packs(packs))) {
+	} else if (find_oid_pack(&oid, packfile_store_get_packs(packs))) {
 		e->type = OBJ_BLOB;
 		e->pack_id = MAX_PACK_ID;
 		e->idx.offset = 1; /* just not zero! */

builtin/fsck.c

@@ -872,20 +872,20 @@ static int mark_packed_for_connectivity(const struct object_id *oid,
 
 static int check_pack_rev_indexes(struct repository *r, int show_progress)
 {
-	struct packfile_store *packs = r->objects->packfiles;
 	struct progress *progress = NULL;
+	struct packed_git *p;
 	uint32_t pack_count = 0;
 	int res = 0;
 
 	if (show_progress) {
-		for (struct packed_git *p = packfile_store_get_all_packs(packs); p; p = p->next)
+		repo_for_each_pack(r, p)
 			pack_count++;
 		progress = start_delayed_progress(the_repository,
 						  "Verifying reverse pack-indexes", pack_count);
 		pack_count = 0;
 	}
 
-	for (struct packed_git *p = packfile_store_get_all_packs(packs); p; p = p->next) {
+	repo_for_each_pack(r, p) {
 		int load_error = load_pack_revindex_from_disk(p);
 
 		if (load_error < 0) {
@@ -1005,8 +1005,6 @@ int cmd_fsck(int argc,
 		for_each_packed_object(the_repository,
 				       mark_packed_for_connectivity, NULL, 0);
 	} else {
-		struct packfile_store *packs = the_repository->objects->packfiles;
-
 		odb_prepare_alternates(the_repository->objects);
 		for (source = the_repository->objects->sources; source; source = source->next)
 			fsck_source(source);
@@ -1017,8 +1015,7 @@ int cmd_fsck(int argc,
 			struct progress *progress = NULL;
 
 			if (show_progress) {
-				for (p = packfile_store_get_all_packs(packs); p;
-				     p = p->next) {
+				repo_for_each_pack(the_repository, p) {
 					if (open_pack_index(p))
 						continue;
 					total += p->num_objects;
@@ -1027,8 +1024,8 @@ int cmd_fsck(int argc,
 				progress = start_progress(the_repository,
 							  _("Checking objects"), total);
 			}
-			for (p = packfile_store_get_all_packs(packs); p;
-			     p = p->next) {
+
+			repo_for_each_pack(the_repository, p) {
 				/* verify gives error messages itself */
 				if (verify_pack(the_repository,
 						p, fsck_obj_buffer,

builtin/gc.c

@@ -487,10 +487,9 @@ static int too_many_loose_objects(struct gc_config *cfg)
 static struct packed_git *find_base_packs(struct string_list *packs,
 					  unsigned long limit)
 {
-	struct packfile_store *packfiles = the_repository->objects->packfiles;
 	struct packed_git *p, *base = NULL;
 
-	for (p = packfile_store_get_all_packs(packfiles); p; p = p->next) {
+	repo_for_each_pack(the_repository, p) {
 		if (!p->pack_local || p->is_cruft)
 			continue;
 		if (limit) {
@@ -509,14 +508,13 @@ static struct packed_git *find_base_packs(struct string_list *packs,
 
 static int too_many_packs(struct gc_config *cfg)
 {
-	struct packfile_store *packs = the_repository->objects->packfiles;
 	struct packed_git *p;
-	int cnt;
+	int cnt = 0;
 
 	if (cfg->gc_auto_pack_limit <= 0)
 		return 0;
 
-	for (cnt = 0, p = packfile_store_get_all_packs(packs); p; p = p->next) {
+	repo_for_each_pack(the_repository, p) {
 		if (!p->pack_local)
 			continue;
 		if (p->pack_keep)
@@ -1422,9 +1420,9 @@ static int incremental_repack_auto_condition(struct gc_config *cfg UNUSED)
 	if (incremental_repack_auto_limit < 0)
 		return 1;
 
-	for (p = packfile_store_get_packs(the_repository->objects->packfiles);
-	     count < incremental_repack_auto_limit && p;
-	     p = p->next) {
+	repo_for_each_pack(the_repository, p) {
+		if (count >= incremental_repack_auto_limit)
+			break;
 		if (!p->multi_pack_index)
 			count++;
 	}
@@ -1491,7 +1489,7 @@ static off_t get_auto_pack_size(void)
 	struct repository *r = the_repository;
 
 	odb_reprepare(r->objects);
-	for (p = packfile_store_get_all_packs(r->objects->packfiles); p; p = p->next) {
+	repo_for_each_pack(r, p) {
 		if (p->pack_size > max_size) {
 			second_largest_size = max_size;
 			max_size = p->pack_size;

builtin/grep.c

@@ -1214,7 +1214,7 @@ int cmd_grep(int argc,
 		if (recurse_submodules)
 			repo_read_gitmodules(the_repository, 1);
 		if (startup_info->have_repository)
-			(void)packfile_store_get_packs(the_repository->objects->packfiles);
+			packfile_store_prepare(the_repository->objects->packfiles);
 
 		start_threads(&opt);
 	} else {

builtin/pack-objects.c

@@ -3830,12 +3830,10 @@ static int pack_mtime_cmp(const void *_a, const void *_b)
 
 static void read_packs_list_from_stdin(struct rev_info *revs)
 {
-	struct packfile_store *packs = the_repository->objects->packfiles;
 	struct strbuf buf = STRBUF_INIT;
 	struct string_list include_packs = STRING_LIST_INIT_DUP;
 	struct string_list exclude_packs = STRING_LIST_INIT_DUP;
 	struct string_list_item *item = NULL;
-
 	struct packed_git *p;
 
 	while (strbuf_getline(&buf, stdin) != EOF) {
@@ -3855,7 +3853,7 @@ static void read_packs_list_from_stdin(struct rev_info *revs)
 	string_list_sort(&exclude_packs);
 	string_list_remove_duplicates(&exclude_packs, 0);
 
-	for (p = packfile_store_get_all_packs(packs); p; p = p->next) {
+	repo_for_each_pack(the_repository, p) {
 		const char *pack_name = pack_basename(p);
 
 		if ((item = string_list_lookup(&include_packs, pack_name)))
@@ -4076,7 +4074,6 @@ static void enumerate_cruft_objects(void)
 
 static void enumerate_and_traverse_cruft_objects(struct string_list *fresh_packs)
 {
-	struct packfile_store *packs = the_repository->objects->packfiles;
 	struct packed_git *p;
 	struct rev_info revs;
 	int ret;
@@ -4106,7 +4103,7 @@ static void enumerate_and_traverse_cruft_objects(struct string_list *fresh_packs
 	 * Re-mark only the fresh packs as kept so that objects in
 	 * unknown packs do not halt the reachability traversal early.
 	 */
-	for (p = packfile_store_get_all_packs(packs); p; p = p->next)
+	repo_for_each_pack(the_repository, p)
 		p->pack_keep_in_core = 0;
 	mark_pack_kept_in_core(fresh_packs, 1);
 
@@ -4123,7 +4120,6 @@ static void enumerate_and_traverse_cruft_objects(struct string_list *fresh_packs
 
 static void read_cruft_objects(void)
 {
-	struct packfile_store *packs = the_repository->objects->packfiles;
 	struct strbuf buf = STRBUF_INIT;
 	struct string_list discard_packs = STRING_LIST_INIT_DUP;
 	struct string_list fresh_packs = STRING_LIST_INIT_DUP;
@@ -4144,7 +4140,7 @@ static void read_cruft_objects(void)
 	string_list_sort(&discard_packs);
 	string_list_sort(&fresh_packs);
 
-	for (p = packfile_store_get_all_packs(packs); p; p = p->next) {
+	repo_for_each_pack(the_repository, p) {
 		const char *pack_name = pack_basename(p);
 		struct string_list_item *item;
 
@@ -4397,7 +4393,7 @@ static int has_sha1_pack_kept_or_nonlocal(const struct object_id *oid)
 	struct packed_git *p;
 
 	p = (last_found != (void *)1) ? last_found :
-					packfile_store_get_all_packs(packs);
+					packfile_store_get_packs(packs);
 
 	while (p) {
 		if ((!p->pack_local || p->pack_keep ||
@@ -4407,7 +4403,7 @@ static int has_sha1_pack_kept_or_nonlocal(const struct object_id *oid)
 			return 1;
 		}
 		if (p == last_found)
-			p = packfile_store_get_all_packs(packs);
+			p = packfile_store_get_packs(packs);
 		else
 			p = p->next;
 		if (p == last_found)
@@ -4439,13 +4435,12 @@ static int loosened_object_can_be_discarded(const struct object_id *oid,
 
 static void loosen_unused_packed_objects(void)
 {
-	struct packfile_store *packs = the_repository->objects->packfiles;
 	struct packed_git *p;
 	uint32_t i;
 	uint32_t loosened_objects_nr = 0;
 	struct object_id oid;
 
-	for (p = packfile_store_get_all_packs(packs); p; p = p->next) {
+	repo_for_each_pack(the_repository, p) {
 		if (!p->pack_local || p->pack_keep || p->pack_keep_in_core)
 			continue;
 
@@ -4743,13 +4738,12 @@ static void get_object_list(struct rev_info *revs, struct strvec *argv)
 
 static void add_extra_kept_packs(const struct string_list *names)
 {
-	struct packfile_store *packs = the_repository->objects->packfiles;
 	struct packed_git *p;
 
 	if (!names->nr)
 		return;
 
-	for (p = packfile_store_get_all_packs(packs); p; p = p->next) {
+	repo_for_each_pack(the_repository, p) {
 		const char *name = basename(p->pack_name);
 		int i;
 
@@ -5187,10 +5181,9 @@ int cmd_pack_objects(int argc,
 
 	add_extra_kept_packs(&keep_pack_list);
 	if (ignore_packed_keep_on_disk) {
-		struct packfile_store *packs = the_repository->objects->packfiles;
 		struct packed_git *p;
 
-		for (p = packfile_store_get_all_packs(packs); p; p = p->next)
+		repo_for_each_pack(the_repository, p)
 			if (p->pack_local && p->pack_keep)
 				break;
 		if (!p) /* no keep-able packs found */
@@ -5202,10 +5195,9 @@ int cmd_pack_objects(int argc,
 		 * want to unset "local" based on looking at packs, as
 		 * it also covers non-local objects
 		 */
-		struct packfile_store *packs = the_repository->objects->packfiles;
 		struct packed_git *p;
 
-		for (p = packfile_store_get_all_packs(packs); p; p = p->next) {
+		repo_for_each_pack(the_repository, p) {
 			if (!p->pack_local) {
 				have_non_local_packs = 1;
 				break;

builtin/pack-redundant.c

@@ -566,29 +566,23 @@ static struct pack_list * add_pack(struct packed_git *p)
 
 static struct pack_list * add_pack_file(const char *filename)
 {
-	struct packfile_store *packs = the_repository->objects->packfiles;
-	struct packed_git *p = packfile_store_get_all_packs(packs);
+	struct packed_git *p;
 
 	if (strlen(filename) < 40)
 		die("Bad pack filename: %s", filename);
 
-	while (p) {
+	repo_for_each_pack(the_repository, p)
 		if (strstr(p->pack_name, filename))
 			return add_pack(p);
-		p = p->next;
-	}
 	die("Filename %s not found in packed_git", filename);
 }
 
 static void load_all(void)
 {
-	struct packfile_store *packs = the_repository->objects->packfiles;
-	struct packed_git *p = packfile_store_get_all_packs(packs);
+	struct packed_git *p;
 
-	while (p) {
+	repo_for_each_pack(the_repository, p)
 		add_pack(p);
-		p = p->next;
-	}
 }
 
 int cmd_pack_redundant(int argc, const char **argv, const char *prefix UNUSED, struct repository *repo UNUSED) {

connected.c

@@ -74,10 +74,9 @@ int check_connected(oid_iterate_fn fn, void *cb_data,
 		 */
 		odb_reprepare(the_repository->objects);
 		do {
-			struct packfile_store *packs = the_repository->objects->packfiles;
 			struct packed_git *p;
 
-			for (p = packfile_store_get_all_packs(packs); p; p = p->next) {
+			repo_for_each_pack(the_repository, p) {
 				if (!p->pack_promisor)
 					continue;
 				if (find_pack_entry_one(oid, p))

http-backend.c

@@ -601,19 +601,18 @@ static void get_head(struct strbuf *hdr, char *arg UNUSED)
 static void get_info_packs(struct strbuf *hdr, char *arg UNUSED)
 {
 	size_t objdirlen = strlen(repo_get_object_directory(the_repository));
-	struct packfile_store *packs = the_repository->objects->packfiles;
 	struct strbuf buf = STRBUF_INIT;
 	struct packed_git *p;
 	size_t cnt = 0;
 
 	select_getanyfile(hdr);
-	for (p = packfile_store_get_all_packs(packs); p; p = p->next) {
+	repo_for_each_pack(the_repository, p) {
 		if (p->pack_local)
 			cnt++;
 	}
 
 	strbuf_grow(&buf, cnt * 53 + 2);
-	for (p = packfile_store_get_all_packs(packs); p; p = p->next) {
+	repo_for_each_pack(the_repository, p) {
 		if (p->pack_local)
 			strbuf_addf(&buf, "P %s\n", p->pack_name + objdirlen + 6);
 	}