Function repo_parse_commit_internal

commit.c:600–660

}

int repo_parse_commit_internal(struct repository *r,
			       struct commit *item,
			       int quiet_on_missing,
			       int use_commit_graph)
{
	enum object_type type;
	void *buffer;
	size_t size;
	struct object_info oi = {
		.typep = &type,
		.sizep = &size,
		.contentp = &buffer,
	};
	/*
	 * Git does not support partial clones that exclude commits, so set
	 * OBJECT_INFO_SKIP_FETCH_OBJECT to fail fast when an object is missing.
	 */
	int flags = OBJECT_INFO_LOOKUP_REPLACE | OBJECT_INFO_SKIP_FETCH_OBJECT |
		OBJECT_INFO_DIE_IF_CORRUPT;
	int ret;

	if (!item)
		return -1;
	if (item->object.parsed)
		return 0;
	if (use_commit_graph && parse_commit_in_graph(r, item)) {
		static int commit_graph_paranoia = -1;

		if (commit_graph_paranoia == -1)
			commit_graph_paranoia = git_env_bool(GIT_COMMIT_GRAPH_PARANOIA, 0);

		if (commit_graph_paranoia && !odb_has_object(r->objects, &item->object.oid, 0)) {
			unparse_commit(r, &item->object.oid);
			return quiet_on_missing ? -1 :
				error(_("commit %s exists in commit-graph but not in the object database"),
				      oid_to_hex(&item->object.oid));
		}

		return 0;
	}

	if (odb_read_object_info_extended(r->objects, &item->object.oid,
					  &oi, flags) < 0)
		return quiet_on_missing ? -1 :
			error("Could not read %s",
			     oid_to_hex(&item->object.oid));
	if (type != OBJ_COMMIT) {
		free(buffer);
		return error("Object %s not a commit",
			     oid_to_hex(&item->object.oid));
	}

	ret = parse_commit_buffer(r, item, buffer, size, 0);
	if (save_commit_buffer && !ret &&
	    !get_cached_commit_buffer(r, item, NULL)) {
		set_commit_buffer(r, item, buffer, size);
		return 0;
	}