merge(3p/git): Merge git subtree at v2.29.2 r/1890

This also bumps the stable nixpkgs to 20.09 as of 2020-11-21, because
there is some breakage in the git build related to the netrc
credentials helper which someone has taken care of in nixpkgs.

The stable channel is not used for anything other than git, so this
should be fine.

Change-Id: I3575a19dab09e1e9556cf8231d717de9890484fb

1 files changed, 86 insertions, 0 deletions

diff --git a/third_party/git/t/t3514-cherry-pick-revert-gpg.sh b/third_party/git/t/t3514-cherry-pick-revert-gpg.sh
new file mode 100755
index 0000000000..5b2e250eaa
--- /dev/null
+++ b/third_party/git/t/t3514-cherry-pick-revert-gpg.sh
@@ -0,0 +1,86 @@
+#!/bin/sh
+#
+# Copyright (c) 2020 Doan Tran Cong Danh
+#
+
+test_description='test {cherry-pick,revert} --[no-]gpg-sign'
+
+. ./test-lib.sh
+. "$TEST_DIRECTORY/lib-gpg.sh"
+
+if ! test_have_prereq GPG
+then
+	skip_all='skip all test {cherry-pick,revert} --[no-]gpg-sign, gpg not available'
+	test_done
+fi
+
+test_gpg_sign () {
+	local must_fail= will=will fake_editor=
+	if test "x$1" = "x!"
+	then
+		must_fail=test_must_fail
+		will="won't"
+		shift
+	fi
+	conf=$1
+	cmd=$2
+	cmit=$3
+	shift 3
+	test_expect_success "$cmd $* $cmit with commit.gpgsign=$conf $will sign commit" "
+		git reset --hard tip &&
+		git config commit.gpgsign $conf &&
+		git $cmd $* $cmit &&
+		git rev-list tip.. >rev-list &&
+		$must_fail git verify-commit \$(cat rev-list)
+	"
+}
+
+test_expect_success 'setup' '
+	test_commit one &&
+	git switch -c side &&
+	test_commit side1 &&
+	test_commit side2 &&
+	git switch - &&
+	test_commit two &&
+	test_commit three &&
+	test_commit tip
+'
+
+test_gpg_sign ! false cherry-pick   side
+test_gpg_sign ! false cherry-pick ..side
+test_gpg_sign   true  cherry-pick   side
+test_gpg_sign   true  cherry-pick ..side
+test_gpg_sign ! true  cherry-pick   side --no-gpg-sign
+test_gpg_sign ! true  cherry-pick ..side --no-gpg-sign
+test_gpg_sign ! true  cherry-pick   side --gpg-sign --no-gpg-sign
+test_gpg_sign ! true  cherry-pick ..side --gpg-sign --no-gpg-sign
+test_gpg_sign   false cherry-pick   side --no-gpg-sign --gpg-sign
+test_gpg_sign   false cherry-pick ..side --no-gpg-sign --gpg-sign
+test_gpg_sign   true  cherry-pick   side --edit
+test_gpg_sign   true  cherry-pick ..side --edit
+test_gpg_sign ! true  cherry-pick   side --edit --no-gpg-sign
+test_gpg_sign ! true  cherry-pick ..side --edit --no-gpg-sign
+test_gpg_sign ! true  cherry-pick   side --edit --gpg-sign --no-gpg-sign
+test_gpg_sign ! true  cherry-pick ..side --edit --gpg-sign --no-gpg-sign
+test_gpg_sign   false cherry-pick   side --edit --no-gpg-sign --gpg-sign
+test_gpg_sign   false cherry-pick ..side --edit --no-gpg-sign --gpg-sign
+
+test_gpg_sign ! false revert HEAD  --edit
+test_gpg_sign ! false revert two.. --edit
+test_gpg_sign   true  revert HEAD  --edit
+test_gpg_sign   true  revert two.. --edit
+test_gpg_sign ! true  revert HEAD  --edit --no-gpg-sign
+test_gpg_sign ! true  revert two.. --edit --no-gpg-sign
+test_gpg_sign ! true  revert HEAD  --edit --gpg-sign --no-gpg-sign
+test_gpg_sign ! true  revert two.. --edit --gpg-sign --no-gpg-sign
+test_gpg_sign   false revert HEAD  --edit --no-gpg-sign --gpg-sign
+test_gpg_sign   false revert two.. --edit --no-gpg-sign --gpg-sign
+test_gpg_sign   true  revert HEAD  --no-edit
+test_gpg_sign   true  revert two.. --no-edit
+test_gpg_sign ! true  revert HEAD  --no-edit --no-gpg-sign
+test_gpg_sign ! true  revert two.. --no-edit --no-gpg-sign
+test_gpg_sign ! true  revert HEAD  --no-edit --gpg-sign --no-gpg-sign
+test_gpg_sign ! true  revert two.. --no-edit --gpg-sign --no-gpg-sign
+test_gpg_sign   false revert HEAD  --no-edit --no-gpg-sign --gpg-sign
+
+test_done