Merge branch 'jk/promisor-optim'

Handling of "promisor packs" that allows certain objects to be
missing and lazily retrievable has been optimized (a bit).

* jk/promisor-optim:
  revision: avoid parsing with --exclude-promisor-objects
  lookup_unknown_object(): take a repository argument
  is_promisor_object(): free tree buffer after parsing

Author: gitster

builtin/fsck.c

@@ -725,7 +725,7 @@ static int fsck_cache_tree(struct cache_tree *it)
 
 static void mark_object_for_connectivity(const struct object_id *oid)
 {
-	struct object *obj = lookup_unknown_object(oid);
+	struct object *obj = lookup_unknown_object(the_repository, oid);
 	obj->flags |= HAS_OBJ;
 }
 

builtin/pack-objects.c

@@ -3386,7 +3386,7 @@ static void add_objects_in_unpacked_packs(void)
 
 		for (i = 0; i < p->num_objects; i++) {
 			nth_packed_object_id(&oid, p, i);
-			o = lookup_unknown_object(&oid);
+			o = lookup_unknown_object(the_repository, &oid);
 			if (!(o->flags & OBJECT_ADDED))
 				mark_in_pack_object(o, p, &in_pack);
 			o->flags |= OBJECT_ADDED;

http-push.c

@@ -1436,7 +1436,7 @@ static void one_remote_ref(const char *refname)
 	 * may be required for updating server info later.
 	 */
 	if (repo->can_update_info_refs && !has_object_file(&ref->old_oid)) {
-		obj = lookup_unknown_object(&ref->old_oid);
+		obj = lookup_unknown_object(the_repository, &ref->old_oid);
 		fprintf(stderr,	"  fetch %s for %s\n",
 			oid_to_hex(&ref->old_oid), refname);
 		add_fetch_request(obj);

object.c

@@ -177,12 +177,11 @@ void *object_as_type(struct object *obj, enum object_type type, int quiet)
 	}
 }
 
-struct object *lookup_unknown_object(const struct object_id *oid)
+struct object *lookup_unknown_object(struct repository *r, const struct object_id *oid)
 {
-	struct object *obj = lookup_object(the_repository, oid);
+	struct object *obj = lookup_object(r, oid);
 	if (!obj)
-		obj = create_object(the_repository, oid,
-				    alloc_object_node(the_repository));
+		obj = create_object(r, oid, alloc_object_node(r));
 	return obj;
 }
 

object.h

@@ -145,7 +145,7 @@ struct object *parse_object_or_die(const struct object_id *oid, const char *name
 struct object *parse_object_buffer(struct repository *r, const struct object_id *oid, enum object_type type, unsigned long size, void *buffer, int *eaten_p);
 
 /** Returns the object, with potentially excess memory allocated. **/
-struct object *lookup_unknown_object(const struct object_id *oid);
+struct object *lookup_unknown_object(struct repository *r, const struct object_id *oid);
 
 struct object_list *object_list_insert(struct object *item,
 				       struct object_list **list_p);

packfile.c

@@ -2247,6 +2247,7 @@ static int add_promisor_object(const struct object_id *oid,
 			return 0;
 		while (tree_entry_gently(&desc, &entry))
 			oidset_insert(set, &entry.oid);
+		free_tree_buffer(tree);
 	} else if (obj->type == OBJ_COMMIT) {
 		struct commit *commit = (struct commit *) obj;
 		struct commit_list *parents = commit->parents;

refs.c

@@ -337,7 +337,7 @@ static int filter_refs(const char *refname, const struct object_id *oid,
 
 enum peel_status peel_object(const struct object_id *name, struct object_id *oid)
 {
-	struct object *o = lookup_unknown_object(name);
+	struct object *o = lookup_unknown_object(the_repository, name);
 
 	if (o->type == OBJ_NONE) {
 		int type = oid_object_info(the_repository, name, NULL);

revision.c

@@ -3271,7 +3271,7 @@ static int mark_uninteresting(const struct object_id *oid,
 			      void *cb)
 {
 	struct rev_info *revs = cb;
-	struct object *o = parse_object(revs->repo, oid);
+	struct object *o = lookup_unknown_object(revs->repo, oid);
 	o->flags |= UNINTERESTING | SEEN;
 	return 0;
 }

t/helper/test-example-decorate.c

@@ -26,8 +26,8 @@ int cmd__example_decorate(int argc, const char **argv)
 	 * Add 2 objects, one with a non-NULL decoration and one with a NULL
 	 * decoration.
 	 */
-	one = lookup_unknown_object(&one_oid);
-	two = lookup_unknown_object(&two_oid);
+	one = lookup_unknown_object(the_repository, &one_oid);
+	two = lookup_unknown_object(the_repository, &two_oid);
 	ret = add_decoration(&n, one, &decoration_a);
 	if (ret)
 		BUG("when adding a brand-new object, NULL should be returned");
@@ -56,7 +56,7 @@ int cmd__example_decorate(int argc, const char **argv)
 	ret = lookup_decoration(&n, two);
 	if (ret != &decoration_b)
 		BUG("lookup should return added declaration");
-	three = lookup_unknown_object(&three_oid);
+	three = lookup_unknown_object(the_repository, &three_oid);
 	ret = lookup_decoration(&n, three);
 	if (ret)
 		BUG("lookup for unknown object should return NULL");

t/perf/p5600-partial-clone.sh

@@ -23,4 +23,16 @@ test_perf 'checkout of result' '
 	git -C worktree checkout -f
 '
 
+test_perf 'fsck' '
+	git -C bare.git fsck
+'
+
+test_perf 'count commits' '
+	git -C bare.git rev-list --all --count
+'
+
+test_perf 'count non-promisor commits' '
+	git -C bare.git rev-list --all --count --exclude-promisor-objects
+'
+
 test_done