hook: add "git hook list" command

The previous commit introduced an ability to run multiple commands for
hook events and next commit will introduce the ability to define hooks
from configs, in addition to the "traditional" hooks from the hookdir.

Introduce a new command "git hook list" to make inspecting hooks easier
both for users and for the tests we will add.

Further commits will expand on this, e.g. by adding a -z output mode.

Signed-off-by: Emily Shaffer <emilyshaffer@google.com>
Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/t/t1800-hook.sh b/t/t1800-hook.sh
index ed28a2fadb..3ec11f1249 100755
--- a/t/t1800-hook.sh
+++ b/t/t1800-hook.sh
@@ -10,9 +10,31 @@ test_expect_success 'git hook usage' '
 	test_expect_code 129 git hook run &&
 	test_expect_code 129 git hook run -h &&
 	test_expect_code 129 git hook run --unknown 2>err &&
+	test_expect_code 129 git hook list &&
+	test_expect_code 129 git hook list -h &&
 	grep "unknown option" err
 '
 
+test_expect_success 'git hook list: nonexistent hook' '
+	cat >stderr.expect <<-\EOF &&
+	warning: No hooks found for event '\''test-hook'\''
+	EOF
+	test_expect_code 1 git hook list test-hook 2>stderr.actual &&
+	test_cmp stderr.expect stderr.actual
+'
+
+test_expect_success 'git hook list: traditional hook from hookdir' '
+	test_hook test-hook <<-EOF &&
+	echo Test hook
+	EOF
+
+	cat >expect <<-\EOF &&
+	hook from hookdir
+	EOF
+	git hook list test-hook >actual &&
+	test_cmp expect actual
+'
+
 test_expect_success 'git hook run: nonexistent hook' '
 	cat >stderr.expect <<-\EOF &&
 	error: cannot find a hook named test-hook