Merge branch 'rs/git-dir-cleanup'

* rs/git-dir-cleanup:
  Resurrect "git grep --no-index"
  setenv(GIT_DIR) clean-up

Conflicts:
	builtin-grep.c
	t/t7002-grep.sh

1 files changed, 52 insertions, 0 deletions

diff --git a/t/t7002-grep.sh b/t/t7002-grep.sh
index 0b583cbfc..ebae1522c 100755
--- a/t/t7002-grep.sh
+++ b/t/t7002-grep.sh
@@ -434,6 +434,58 @@ test_expect_success 'grep -Fi' '
 	test_cmp expected actual
 '
 
+test_expect_success 'outside of git repository' '
+	rm -fr non &&
+	mkdir -p non/git/sub &&
+	echo hello >non/git/file1 &&
+	echo world >non/git/sub/file2 &&
+	echo ".*o*" >non/git/.gitignore &&
+	{
+		echo file1:hello &&
+		echo sub/file2:world
+	} >non/expect.full &&
+	echo file2:world >non/expect.sub
+	(
+		GIT_CEILING_DIRECTORIES="$(pwd)/non/git" &&
+		export GIT_CEILING_DIRECTORIES &&
+		cd non/git &&
+		test_must_fail git grep o &&
+		git grep --no-index o >../actual.full &&
+		test_cmp ../expect.full ../actual.full
+		cd sub &&
+		test_must_fail git grep o &&
+		git grep --no-index o >../../actual.sub &&
+		test_cmp ../../expect.sub ../../actual.sub
+	)
+'
+
+test_expect_success 'inside git repository but with --no-index' '
+	rm -fr is &&
+	mkdir -p is/git/sub &&
+	echo hello >is/git/file1 &&
+	echo world >is/git/sub/file2 &&
+	echo ".*o*" >is/git/.gitignore &&
+	{
+		echo file1:hello &&
+		echo sub/file2:world
+	} >is/expect.full &&
+	: >is/expect.empty &&
+	echo file2:world >is/expect.sub
+	(
+		cd is/git &&
+		git init &&
+		test_must_fail git grep o >../actual.full &&
+		test_cmp ../expect.empty ../actual.full &&
+		git grep --no-index o >../actual.full &&
+		test_cmp ../expect.full ../actual.full &&
+		cd sub &&
+		test_must_fail git grep o >../../actual.sub &&
+		test_cmp ../../expect.empty ../../actual.sub &&
+		git grep --no-index o >../../actual.sub &&
+		test_cmp ../../expect.sub ../../actual.sub
+	)
+'
+
 test_expect_success 'setup double-dash tests' '
 cat >double-dash <<EOF &&
 --