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From: Hans Jerry Illikainen <hji@dyntopia.com>
To: git@vger.kernel.org
Subject: [PATCH 1/3] merge: add config option for verifySignatures
Date: Sat,  9 Dec 2017 09:05:28 +0000	[thread overview]
Message-ID: <20171209090530.6747-1-hji@dyntopia.com> (raw)

Verify the signature of the tip commit when `merge.verifySignatures` is
true.  This can be overridden with `--no-verify-signatures`.

Signed-off-by: Hans Jerry Illikainen <hji@dyntopia.com>
---
 Documentation/merge-config.txt     |  7 +++++++
 builtin/merge.c                    |  2 ++
 t/t7612-merge-verify-signatures.sh | 43 ++++++++++++++++++++++++++++++++++++--
 3 files changed, 50 insertions(+), 2 deletions(-)

diff --git a/Documentation/merge-config.txt b/Documentation/merge-config.txt
index df3ea3779..76571cd3b 100644
--- a/Documentation/merge-config.txt
+++ b/Documentation/merge-config.txt
@@ -26,6 +26,13 @@ merge.ff::
 	allowed (equivalent to giving the `--ff-only` option from the
 	command line).
 
+merge.verifySignatures::
+	Verify that the tip commit of the side branch being merged is
+	signed with a valid key, i.e. a key that has a valid uid: in the
+	default trust model, this means the signing key has been signed
+	by a trusted key. If the tip commit of the side branch is not
+	signed with a valid key, the merge is aborted.
+
 include::fmt-merge-msg-config.txt[]
 
 merge.renameLimit::
diff --git a/builtin/merge.c b/builtin/merge.c
index 612dd7bfb..30264cfd7 100644
--- a/builtin/merge.c
+++ b/builtin/merge.c
@@ -567,6 +567,8 @@ static int git_merge_config(const char *k, const char *v, void *cb)
 
 	if (!strcmp(k, "merge.diffstat") || !strcmp(k, "merge.stat"))
 		show_diffstat = git_config_bool(k, v);
+	else if (!strcmp(k, "merge.verifysignatures"))
+		verify_signatures = git_config_bool(k, v);
 	else if (!strcmp(k, "pull.twohead"))
 		return git_config_string(&pull_twohead, k, v);
 	else if (!strcmp(k, "pull.octopus"))
diff --git a/t/t7612-merge-verify-signatures.sh b/t/t7612-merge-verify-signatures.sh
index 8ae69a61c..f1a74a683 100755
--- a/t/t7612-merge-verify-signatures.sh
+++ b/t/t7612-merge-verify-signatures.sh
@@ -39,23 +39,62 @@ test_expect_success GPG 'merge unsigned commit with verification' '
 	test_i18ngrep "does not have a GPG signature" mergeerror
 '
 
+test_expect_success GPG 'merge unsigned commit with merge.verifySignatures=true' '
+	test_config merge.verifySignatures true &&
+	test_must_fail git merge --ff-only side-unsigned 2>mergeerror &&
+	test_i18ngrep "does not have a GPG signature" mergeerror
+'
+
 test_expect_success GPG 'merge commit with bad signature with verification' '
 	test_must_fail git merge --ff-only --verify-signatures $(cat forged.commit) 2>mergeerror &&
 	test_i18ngrep "has a bad GPG signature" mergeerror
 '
 
+test_expect_success GPG 'merge commit with bad signature with merge.verifySignatures=true' '
+	test_config merge.verifySignatures true &&
+	test_must_fail git merge --ff-only $(cat forged.commit) 2>mergeerror &&
+	test_i18ngrep "has a bad GPG signature" mergeerror
+'
+
 test_expect_success GPG 'merge commit with untrusted signature with verification' '
 	test_must_fail git merge --ff-only --verify-signatures side-untrusted 2>mergeerror &&
 	test_i18ngrep "has an untrusted GPG signature" mergeerror
 '
 
+test_expect_success GPG 'merge commit with untrusted signature with merge.verifySignatures=true' '
+	test_config merge.verifySignatures true &&
+	test_must_fail git merge --ff-only side-untrusted 2>mergeerror &&
+	test_i18ngrep "has an untrusted GPG signature" mergeerror
+'
+
 test_expect_success GPG 'merge signed commit with verification' '
 	git merge --verbose --ff-only --verify-signatures side-signed >mergeoutput &&
-	test_i18ngrep "has a good GPG signature" mergeoutput
+	test_i18ngrep "has a good GPG signature" mergeoutput &&
+	git checkout initial
+'
+
+test_expect_success GPG 'merge signed commit with merge.verifySignatures=true' '
+	test_config merge.verifySignatures true &&
+	git merge --verbose --ff-only side-signed >mergeoutput &&
+	test_i18ngrep "has a good GPG signature" mergeoutput &&
+	git checkout initial
 '
 
 test_expect_success GPG 'merge commit with bad signature without verification' '
-	git merge $(cat forged.commit)
+	git merge $(cat forged.commit) &&
+	git checkout initial
+'
+
+test_expect_success GPG 'merge commit with bad signature with merge.verifySignatures=false' '
+	test_config merge.verifySignatures false &&
+	git merge $(cat forged.commit) &&
+	git checkout initial
+'
+
+test_expect_success GPG 'merge commit with bad signature with merge.verifySignatures=true and --no-verify-signatures' '
+	test_config merge.verifySignatures true &&
+	git merge --no-verify-signatures $(cat forged.commit) &&
+	git checkout initial
 '
 
 test_done
-- 
2.11.0


             reply	other threads:[~2017-12-09  9:06 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-09  9:05 Hans Jerry Illikainen [this message]
2017-12-09  9:05 ` [PATCH 2/3] t: add tests for pull --verify-signatures Hans Jerry Illikainen
2017-12-09 12:06   ` Kevin Daudt
2017-12-09  9:05 ` [PATCH 3/3] pull: add config option for verifySignatures Hans Jerry Illikainen
2017-12-09 12:06   ` Kevin Daudt
2017-12-10  6:48     ` Hans Jerry Illikainen
2017-12-09 12:05 ` [PATCH 1/3] merge: " Kevin Daudt
2017-12-12 18:56   ` Junio C Hamano
2017-12-10  6:53 ` [PATCH v2 1/2] " Hans Jerry Illikainen
2017-12-10  6:53   ` [PATCH v2 2/2] t: add tests for pull --verify-signatures Hans Jerry Illikainen
2017-12-12 19:03     ` Junio C Hamano
2017-12-15 19:48       ` Re* " Junio C Hamano
2017-12-16  9:34         ` Hans Jerry Illikainen
2017-12-17  6:18           ` Junio C Hamano
2017-12-19 21:01         ` [PATCH v2 3/2] t5573, t7612: clean up after unexpected success of 'pull' and 'merge' Junio C Hamano

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