[PATCH v3 4/5] show-ref: Detect dangling refs under --verify as well

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Move detection of dangling refs into show_one, so that they are
detected when --verify is present as well as when it is absent.

Signed-off-by: Vladimir Panteleev <git@xxxxxxxxxxxxxxxxxx>
---
 builtin/show-ref.c  | 16 ++++++++--------
 t/t1403-show-ref.sh | 22 ++++++++++++++++++++++
 2 files changed, 30 insertions(+), 8 deletions(-)

diff --git a/builtin/show-ref.c b/builtin/show-ref.c
index ab8e0dc41..107d05fe0 100644
--- a/builtin/show-ref.c
+++ b/builtin/show-ref.c
@@ -22,6 +22,14 @@ static void show_one(const char *refname, const struct object_id *oid)
 	const char *hex;
 	struct object_id peeled;
 
+	/* This changes the semantics slightly that even under quiet we
+	 * detect and return error if the repository is corrupt and
+	 * ref points at a nonexistent object.
+	 */
+	if (!has_sha1_file(oid->hash))
+		die("git show-ref: bad ref %s (%s)", refname,
+		    oid_to_hex(oid));
+
 	if (quiet)
 		return;
 
@@ -77,14 +85,6 @@ static int show_ref(const char *refname, const struct object_id *oid,
 match:
 	found_match++;
 
-	/* This changes the semantics slightly that even under quiet we
-	 * detect and return error if the repository is corrupt and
-	 * ref points at a nonexistent object.
-	 */
-	if (!has_sha1_file(oid->hash))
-		die("git show-ref: bad ref %s (%s)", refname,
-		    oid_to_hex(oid));
-
 	show_one(refname, oid);
 
 	return 0;
diff --git a/t/t1403-show-ref.sh b/t/t1403-show-ref.sh
index c6872bd96..30354fd26 100755
--- a/t/t1403-show-ref.sh
+++ b/t/t1403-show-ref.sh
@@ -184,4 +184,26 @@ test_expect_success 'show-ref --verify HEAD' '
 	test_cmp expect actual
 '
 
+test_expect_success 'show-ref --verify with dangling ref' '
+	sha1_file() {
+		echo "$*" | sed "s#..#.git/objects/&/#"
+	} &&
+
+	remove_object() {
+		file=$(sha1_file "$*") &&
+		test -e "$file" &&
+		rm -f "$file"
+	} &&
+
+	test_when_finished "rm -rf dangling" &&
+	(
+		git init dangling &&
+		cd dangling &&
+		test_commit dangling &&
+		sha=$(git rev-parse refs/tags/dangling) &&
+		remove_object $sha &&
+		test_must_fail git show-ref --verify refs/tags/dangling
+	)
+'
+
 test_done
-- 
2.11.0




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