commit ea35256be57fbb7d6afbedd8382c9e6e36b39718
from: Stefan Sperling <stsp@stsp.name>
date: Fri Mar 16 18:27:48 2018 UTC

avoid a round-trip via tempfile when reading packed commits

commit - 40dc5ff850c9b70725e0ae5ef7e12a05fe0ea894
commit + ea35256be57fbb7d6afbedd8382c9e6e36b39718
blob - 66fcf360ef08cd9ad2a75fee374b6553129d6d2c
blob + 1cd78bd397de872885840daf766fa91b523f1545
--- lib/object.c
+++ lib/object.c
@@ -615,20 +615,27 @@ got_object_commit_open(struct got_commit_object **comm
     struct got_repository *repo, struct got_object *obj)
 {
 	const struct got_error *err = NULL;
-	FILE *f;
 
 	if (obj->type != GOT_OBJ_TYPE_COMMIT)
 		return got_error(GOT_ERR_OBJ_TYPE);
 
-	if (obj->flags & GOT_OBJ_FLAG_PACKED)
-		err = got_packfile_extract_object(&f, obj, repo);
-	else
+	if (obj->flags & GOT_OBJ_FLAG_PACKED) {
+		uint8_t *buf;
+		size_t len;
+		err = got_packfile_extract_object_to_mem(&buf, &len, obj, repo);
+		if (err)
+			return err;
+		len -= obj->hdrlen;
+		err = parse_commit_object(commit, buf + obj->hdrlen, len);
+		free(buf);
+	} else {
+		FILE *f;
 		err = open_loose_object(&f, obj, repo);
-	if (err)
-		return err;
-
-	err = read_commit_object(commit, repo, obj, f);
-	fclose(f);
+		if (err)
+			return err;
+		err = read_commit_object(commit, repo, obj, f);
+		fclose(f);
+	}
 	return err;
 }
 
blob - a9f4e70b4c44660ba309da7d3b76b74528c49f6a
blob + df4373930ad456a300065c03df84108b1aa55891
--- lib/pack.c
+++ lib/pack.c
@@ -1426,9 +1426,6 @@ got_packfile_extract_object_to_mem(uint8_t **buf, size
 	const struct got_error *err = NULL;
 	FILE *packfile = NULL;
 
-	if (obj->type != GOT_OBJ_TYPE_TREE)
-		return got_error(GOT_ERR_OBJ_TYPE);
-
 	if ((obj->flags & GOT_OBJ_FLAG_PACKED) == 0)
 		return got_error(GOT_ERR_OBJ_NOT_PACKED);