[PATCH v3 3/3] dir: exit before wildcard fall-through if there is no wildcard

From: "Elijah Newren via GitGitGadget" <gitgitgadget@gmail.com>
To: git@vger.kernel.org
Cc: blees@dcon.de, gitster@pobox.com, kyle@kyleam.com,
	sxlijin@gmail.com, Junio C Hamano <gitster@pobox.com>,
	Elijah Newren <newren@gmail.com>
Subject: [PATCH v3 3/3] dir: exit before wildcard fall-through if there is no wildcard
Date: Tue, 17 Dec 2019 08:33:06 +0000	[thread overview]
Message-ID: <47814640e411b3fda19e5035234513e7d238f75f.1576571586.git.gitgitgadget@gmail.com> (raw)
In-Reply-To: <pull.676.v3.git.git.1576571586.gitgitgadget@gmail.com>

From: Elijah Newren <newren@gmail.com>

The DO_MATCH_LEADING_PATHSPEC had a fall-through case for if there was a
wildcard, noting that we don't yet have enough information to determine
if a further paths under the current directory might match due to the
presence of wildcards.  But if we have no wildcards in our pathspec,
then we shouldn't get to that fall-through case.

Signed-off-by: Elijah Newren <newren@gmail.com>
---
 dir.c                                              | 7 +++++++
 t/t3011-common-prefixes-and-directory-traversal.sh | 4 ++--
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/dir.c b/dir.c
index 13c0c2333c..f08bb073ef 100644
--- a/dir.c
+++ b/dir.c
@@ -379,6 +379,13 @@ static int match_pathspec_item(const struct index_state *istate,
 			       item->nowildcard_len - prefix))
 			return 0;
 
+		/*
+		 * name has no wildcard, and it didn't match as a leading
+		 * pathspec so return.
+		 */
+		if (item->nowildcard_len == item->len)
+			return 0;
+
 		/*
 		 * Here is where we would perform a wildmatch to check if
 		 * "name" can be matched as a directory (or a prefix) against
diff --git a/t/t3011-common-prefixes-and-directory-traversal.sh b/t/t3011-common-prefixes-and-directory-traversal.sh
index 54f80c62b8..d6e161ddd8 100755
--- a/t/t3011-common-prefixes-and-directory-traversal.sh
+++ b/t/t3011-common-prefixes-and-directory-traversal.sh
@@ -92,7 +92,7 @@ test_expect_failure 'git ls-files -o untracked_repo/ does not recurse' '
 	test_cmp expect actual
 '
 
-test_expect_failure 'git ls-files -o untracked_dir untracked_repo recurses into untracked_dir only' '
+test_expect_success 'git ls-files -o untracked_dir untracked_repo recurses into untracked_dir only' '
 	cat <<-EOF >expect &&
 	untracked_dir/empty
 	untracked_repo/
@@ -110,7 +110,7 @@ test_expect_success 'git ls-files -o untracked_dir/ untracked_repo/ recurses int
 	test_cmp expect actual
 '
 
-test_expect_failure 'git ls-files -o --directory untracked_dir untracked_repo does not recurse' '
+test_expect_success 'git ls-files -o --directory untracked_dir untracked_repo does not recurse' '
 	cat <<-EOF >expect &&
 	untracked_dir/
 	untracked_repo/
-- 
gitgitgadget
