Merge branch 'jk/no-looking-at-dotgit-outside-repo'

Update "git diff --no-index" codepath not to try to peek into .git/
directory that happens to be under the current directory, when we
know we are operating outside any repository.

* jk/no-looking-at-dotgit-outside-repo:
  diff: handle sha1 abbreviations outside of repository
  diff_aligned_abbrev: use "struct oid"
  diff_unique_abbrev: rename to diff_aligned_abbrev
  find_unique_abbrev: use 4-buffer ring
  test-*-cache-tree: setup git dir
  read info/{attributes,exclude} only when in repository

1 files changed, 5 insertions, 1 deletions

diff --git a/attr.c b/attr.c
index eec5d7d15..1fcf042b8 100644
--- a/attr.c
+++ b/attr.c
@@ -531,7 +531,11 @@ static void bootstrap_attr_stack(void)
 		debug_push(elem);
 	}
 
-	elem = read_attr_from_file(git_path_info_attributes(), 1);
+	if (startup_info->have_repository)
+		elem = read_attr_from_file(git_path_info_attributes(), 1);
+	else
+		elem = NULL;
+
 	if (!elem)
 		elem = xcalloc(1, sizeof(*elem));
 	elem->origin = NULL;