Merge branch 'sb/push-options-via-transport'

The push-options given via the "--push-options" option were not
passed through to external remote helpers such as "smart HTTP" that
are invoked via the transport helper.

* sb/push-options-via-transport:
  push options: pass push options to the transport helper

Documentation/gitremote-helpers.txt

@@ -462,6 +462,10 @@ set by Git if the remote helper has the 'option' capability.
 'option pushcert {'true'|'false'}::
 	GPG sign pushes.
 
+'option push-option <string>::
+	Transmit <string> as a push option. As the a push option
+	must not contain LF or NUL characters, the string is not encoded.
+
 SEE ALSO
 --------
 linkgit:git-remote[1]

t/t5545-push-options.sh

@@ -3,6 +3,8 @@
 test_description='pushing to a repository using push options'
 
 . ./test-lib.sh
+. "$TEST_DIRECTORY"/lib-httpd.sh
+start_httpd
 
 mk_repo_pair () {
 	rm -rf workbench upstream &&
@@ -100,4 +102,17 @@ test_expect_success 'two push options work' '
 	test_cmp expect upstream/.git/hooks/post-receive.push_options
 '
 
+test_expect_success 'push option denied properly by http remote helper' '\
+	mk_repo_pair &&
+	git -C upstream config receive.advertisePushOptions false &&
+	git -C upstream config http.receivepack true &&
+	cp -R upstream/.git "$HTTPD_DOCUMENT_ROOT_PATH"/upstream.git &&
+	git clone "$HTTPD_URL"/smart/upstream test_http_clone &&
+	test_commit -C test_http_clone one &&
+	test_must_fail git -C test_http_clone push --push-option=asdf origin master &&
+	git -C test_http_clone push origin master
+'
+
+stop_httpd
+
 test_done

transport-helper.c

@@ -826,6 +826,13 @@ static void set_common_push_options(struct transport *transport,
 		if (set_helper_option(transport, TRANS_OPT_PUSH_CERT, "if-asked") != 0)
 			die("helper %s does not support --signed=if-asked", name);
 	}
+
+	if (flags & TRANSPORT_PUSH_OPTIONS) {
+		struct string_list_item *item;
+		for_each_string_list_item(item, transport->push_options)
+			if (set_helper_option(transport, "push-option", item->string) != 0)
+				die("helper %s does not support 'push-option'", name);
+	}
 }
 
 static int push_refs_with_push(struct transport *transport,