t/helper: initialize repository if necessary

bk2204 · gitster · commit 8dca7f30e4e5 · 2020-02-24T09:33:27.000-08:00
The repository helper is used in t5318 to read commit graphs whether
we're in a repository or not. However, without a repository, we have no
way to properly initialize the hash algorithm, meaning that the file is
misread.

Fix this by calling setup_git_directory_gently, which will read the
environment variable the testsuite sets to ensure that the correct hash
algorithm is set.

Signed-off-by: brian m. carlson &lt;sandals@crustytoothpaste.net&gt;
Signed-off-by: Junio C Hamano &lt;gitster@pobox.com&gt;
diff --git a/t/helper/test-repository.c b/t/helper/test-repository.c
@@ -75,6 +75,10 @@ static void test_get_commit_tree_in_graph(const char *gitdir,
 
 int cmd__repository(int argc, const char **argv)
 {
+	int nongit_ok = 0;
+
+	setup_git_directory_gently(&nongit_ok);
+
 	if (argc < 2)
 		die("must have at least 2 arguments");
 	if (!strcmp(argv[1], "parse_commit_in_graph")) {
