log_ref_setup(): improve robustness against races

diff --git a/t/t5000-tar-tree.sh b/t/t5000-tar-tree.sh
index 80b2387341c3a7abb9cc4b126376d7dd755d9e1d..886b6953e40f9fceae18642ebec031e0bdf511e3 100755 (executable)
--- a/t/t5000-tar-tree.sh
+++ b/t/t5000-tar-tree.sh
@@ -179,6 +179,15 @@ test_expect_success 'git archive --remote' \
     'git archive --remote=. HEAD >b5.tar &&
     test_cmp_bin b.tar b5.tar'
 
+test_expect_success 'git archive --remote with configured remote' '
+       git config remote.foo.url . &&
+       (
+               cd a &&
+               git archive --remote=foo --output=../b5-nick.tar HEAD
+       ) &&
+       test_cmp_bin b.tar b5-nick.tar
+'
+
 test_expect_success \
     'validate file modification time' \
     'mkdir extract &&
@@ -197,9 +206,15 @@ test_expect_success 'git archive with --output, override inferred format' '
        test_cmp_bin b.tar d4.zip
 '
 
-test_expect_success \
-    'git archive --list outside of a git repo' \
-    'GIT_DIR=some/non-existing/directory git archive --list'
+test_expect_success 'git archive --list outside of a git repo' '
+       nongit git archive --list
+'
+
+test_expect_success 'git archive --remote outside of a git repo' '
+       git archive HEAD >expect.tar &&
+       nongit git archive --remote="$PWD" HEAD >actual.tar &&
+       test_cmp_bin expect.tar actual.tar
+'
 
 test_expect_success 'clients cannot access unreachable commits' '
        test_commit unreachable &&