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, 69 insertions, 0 deletions

diff --git a/third_party/git/t/t5411/test-0021-report-ng--porcelain.sh b/third_party/git/t/t5411/test-0021-report-ng--porcelain.sh
new file mode 100644
index 000000000000..fbf55691031b
--- /dev/null
+++ b/third_party/git/t/t5411/test-0021-report-ng--porcelain.sh
@@ -0,0 +1,69 @@
+test_expect_success "setup proc-receive hook (ng, no message, $PROTOCOL/porcelain)" '
+	write_script "$upstream/hooks/proc-receive" <<-EOF
+	printf >&2 "# proc-receive hook\n"
+	test-tool proc-receive -v \
+		-r "ng refs/for/master/topic"
+	EOF
+'
+
+# Refs of upstream : master(A)
+# Refs of workbench: master(A)  tags/v123
+# git push         :                       refs/for/master/topic
+test_expect_success "proc-receive: fail to update (ng, no message, $PROTOCOL/porcelain)" '
+	test_must_fail git -C workbench push --porcelain origin \
+		HEAD:refs/for/master/topic \
+		>out 2>&1 &&
+	make_user_friendly_and_stable_output <out >actual &&
+	cat >expect <<-EOF &&
+	remote: # pre-receive hook
+	remote: pre-receive< <ZERO-OID> <COMMIT-A> refs/for/master/topic
+	remote: # proc-receive hook
+	remote: proc-receive< <ZERO-OID> <COMMIT-A> refs/for/master/topic
+	remote: proc-receive> ng refs/for/master/topic
+	To <URL/of/upstream.git>
+	!    HEAD:refs/for/master/topic    [remote rejected] (failed)
+	Done
+	EOF
+	test_cmp expect actual &&
+	git -C "$upstream" show-ref >out &&
+	make_user_friendly_and_stable_output <out >actual &&
+	cat >expect <<-EOF &&
+	<COMMIT-A> refs/heads/master
+	EOF
+	test_cmp expect actual
+'
+
+test_expect_success "setup proc-receive hook (ng message, $PROTOCOL/porcelain)" '
+	write_script "$upstream/hooks/proc-receive" <<-EOF
+	printf >&2 "# proc-receive hook\n"
+	test-tool proc-receive -v \
+		-r "ng refs/for/master/topic error msg"
+	EOF
+'
+
+# Refs of upstream : master(A)
+# Refs of workbench: master(A)  tags/v123
+# git push         :                       refs/for/master/topic
+test_expect_success "proc-receive: fail to update (ng, with message, $PROTOCOL/porcelain)" '
+	test_must_fail git -C workbench push --porcelain origin \
+		HEAD:refs/for/master/topic \
+		>out 2>&1 &&
+	make_user_friendly_and_stable_output <out >actual &&
+	cat >expect <<-EOF &&
+	remote: # pre-receive hook
+	remote: pre-receive< <ZERO-OID> <COMMIT-A> refs/for/master/topic
+	remote: # proc-receive hook
+	remote: proc-receive< <ZERO-OID> <COMMIT-A> refs/for/master/topic
+	remote: proc-receive> ng refs/for/master/topic error msg
+	To <URL/of/upstream.git>
+	!    HEAD:refs/for/master/topic    [remote rejected] (error msg)
+	Done
+	EOF
+	test_cmp expect actual &&
+	git -C "$upstream" show-ref >out &&
+	make_user_friendly_and_stable_output <out >actual &&
+	cat >expect <<-EOF &&
+	<COMMIT-A> refs/heads/master
+	EOF
+	test_cmp expect actual
+'