log: add log.showSignature configuration variable

Users may want to always use "--show-signature" while using git-log and
related commands.

When log.showSignature is set to true, git-log and related commands will
behave as if "--show-signature" was given to them.

Note that this config variable is meant to affect git-log, git-show,
git-whatchanged and git-reflog. Other commands like git-format-patch,
git-rev-list are not to be affected by this config variable.

Signed-off-by: Mehul Jain <mehul.jain2029@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 20 insertions, 0 deletions

diff --git a/t/t4202-log.sh b/t/t4202-log.sh
index 449a5275d4..803e1e6b8f 100755
--- a/t/t4202-log.sh
+++ b/t/t4202-log.sh
@@ -898,6 +898,26 @@ test_expect_success GPG '--no-show-signature overrides --show-signature' '
 	! grep "^gpg:" actual
 '
 
+test_expect_success GPG 'log.showsignature=true behaves like --show-signature' '
+	test_config log.showsignature true &&
+	git log -1 signed >actual &&
+	grep "gpg: Signature made" actual &&
+	grep "gpg: Good signature" actual
+'
+
+test_expect_success GPG '--no-show-signature overrides log.showsignature=true' '
+	test_config log.showsignature true &&
+	git log -1 --no-show-signature signed >actual &&
+	! grep "^gpg:" actual
+'
+
+test_expect_success GPG '--show-signature overrides log.showsignature=false' '
+	test_config log.showsignature false &&
+	git log -1 --show-signature signed >actual &&
+	grep "gpg: Signature made" actual &&
+	grep "gpg: Good signature" actual
+'
+
 test_expect_success 'log --graph --no-walk is forbidden' '
 	test_must_fail git log --graph --no-walk
 '