[PATCH 31/43] Do not read .git/info/exclude if there is no repository

["Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>]

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 dir.c           |    8 +++++---
 t/t7002-grep.sh |   24 ++++++++++++++++++++++++
 2 files changed, 29 insertions(+), 3 deletions(-)

diff --git a/dir.c b/dir.c
index cb83332..0bd5d9f 100644
--- a/dir.c
+++ b/dir.c
@@ -1040,9 +1040,11 @@ void setup_standard_excludes(struct dir_struct *dir)
 	const char *path;
 
 	dir->exclude_per_dir = ".gitignore";
-	path = git_path("info/exclude");
-	if (!access(path, R_OK))
-		add_excludes_from_file(dir, path);
+	if (!startup_info || startup_info->have_repository) {
+		path = git_path("info/exclude");
+		if (!access(path, R_OK))
+			add_excludes_from_file(dir, path);
+	}
 	if (excludes_file && !access(excludes_file, R_OK))
 		add_excludes_from_file(dir, excludes_file);
 }
diff --git a/t/t7002-grep.sh b/t/t7002-grep.sh
index e249c3e..06ec4cb 100755
--- a/t/t7002-grep.sh
+++ b/t/t7002-grep.sh
@@ -527,4 +527,28 @@ test_expect_success 'grep -e -- -- path' '
 	test_cmp expected actual
 '
 
+test_expect_success 'Setup fake .git' '
+	cd t &&
+	GIT_CEILING_DIRECTORIES="`pwd`" &&
+	export GIT_CEILING_DIRECTORIES &&
+	cd a &&
+	mkdir -p .git/info &&
+	cd ../..
+
+'
+
+test_expect_success 'Ignore fake .git/info/exclude' '
+	(
+		cd t/a &&
+		echo v > .git/info/exclude &&
+		git grep --no-index vvv . &&
+		rm .git/info/exclude
+	)
+'
+
+test_expect_success 'Unsetup fake .git' '
+	rm -rf t/a &&
+	unset GIT_CEILING_DIRECTORIES
+'
+
 test_done
-- 
1.7.0.rc1.541.g2da82.dirty