new file mode 100755
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+#!/bin/sh
+
+test_description='check random commands outside repo'
+
+TEST_PASSES_SANITIZE_LEAK=true
+. ./test-lib.sh
+
+# Do not use the end-user workaround for this test.
+# GIT_DEFAULT_HASH_ALGORITHM=sha1; export GIT_DEFAULT_HASH_ALGORITHM
+
+test_expect_success 'set up a non-repo directory and test file' '
+ GIT_CEILING_DIRECTORIES=$(pwd) &&
+ export GIT_CEILING_DIRECTORIES &&
+ mkdir non-repo &&
+ (
+ cd non-repo &&
+ # confirm that git does not find a repo
+ test_must_fail git rev-parse --git-dir
+ ) &&
+ test_write_lines one two three four >nums &&
+ git add nums &&
+ cp nums nums.old &&
+ test_write_lines five >>nums &&
+ git diff >sample.patch
+'
+
+test_expect_failure 'compute a patch-id outside repository' '
+ git patch-id <sample.patch >patch-id.expect &&
+ (
+ cd non-repo &&
+ git patch-id <../sample.patch >../patch-id.actual
+ ) &&
+ test_cmp patch-id.expect patch-id.actual
+'
+
+test_expect_failure 'hash-object outside repository' '
+ git hash-object --stdin <sample.patch >hash.expect &&
+ (
+ cd non-repo &&
+ git hash-object --stdin <../sample.patch >../hash.actual
+ ) &&
+ test_cmp hash.expect hash.actual
+'
+
+test_expect_failure 'apply a patch outside repository' '
+ (
+ cd non-repo &&
+ cp ../nums.old nums &&
+ git apply ../sample.patch
+ ) &&
+ test_cmp nums non-repo/nums
+'
+
+test_expect_success 'grep outside repository' '
+ git grep --cached two >expect &&
+ (
+ cd non-repo &&
+ cp ../nums.old nums &&
+ git grep --no-index two >../actual
+ ) &&
+ test_cmp expect actual
+'
+
+test_done
A few commands, like "git apply" and "git patch-id", have been broken with a recent change to stop setting the default hash algorithm to SHA-1. Test them and fix them in later commits. Signed-off-by: Junio C Hamano <gitster@pobox.com> --- t/t1517-outside-repo.sh | 64 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100755 t/t1517-outside-repo.sh