tag.c: implement '--merged' and '--no-merged' options

diff --git a/t/t7004-tag.sh b/t/t7004-tag.sh
index 8987fb160df36d4e9cc2f264258b62e8446feaa9..3dd2f51e49d7e6824382ac415cf64842fa3b757f 100755 (executable)
--- a/t/t7004-tag.sh
+++ b/t/t7004-tag.sh
@@ -1531,4 +1531,31 @@ test_expect_success '--format should list tags as per format given' '
        test_cmp expect actual
 '
 
+test_expect_success 'setup --merged test tags' '
+       git tag mergetest-1 HEAD~2 &&
+       git tag mergetest-2 HEAD~1 &&
+       git tag mergetest-3 HEAD
+'
+
+test_expect_success '--merged cannot be used in non-list mode' '
+       test_must_fail git tag --merged=mergetest-2 foo
+'
+
+test_expect_success '--merged shows merged tags' '
+       cat >expect <<-\EOF &&
+       mergetest-1
+       mergetest-2
+       EOF
+       git tag -l --merged=mergetest-2 mergetest-* >actual &&
+       test_cmp expect actual
+'
+
+test_expect_success '--no-merged show unmerged tags' '
+       cat >expect <<-\EOF &&
+       mergetest-3
+       EOF
+       git tag -l --no-merged=mergetest-2 mergetest-* >actual &&
+       test_cmp expect actual
+'
+
 test_done