Sync Westmint to Millau (#1482)

* sync Westmint to Millau

* "Westend parachains at Millau" dashboard

bridges/relays/bin-substrate/src/chains/mod.rs

@@ -31,6 +31,7 @@ pub mod rialto_parachains_to_millau;
 pub mod rococo_headers_to_wococo;
 pub mod rococo_messages_to_wococo;
 pub mod westend_headers_to_millau;
+pub mod westend_parachains_to_millau;
 pub mod wococo_headers_to_rococo;
 pub mod wococo_messages_to_rococo;
 

bridges/relays/bin-substrate/src/chains/westend_parachains_to_millau.rs

@@ -0,0 +1,52 @@
+// Copyright 2019-2021 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
+//! Westend-to-Millau parachains sync entrypoint.
+
+use parachains_relay::ParachainsPipeline;
+use relay_millau_client::Millau;
+use relay_westend_client::{Westend, Westmint};
+use substrate_relay_helper::parachains::{
+	DirectSubmitParachainHeadsCallBuilder, SubstrateParachainsPipeline,
+};
+
+/// Westend-to-Millau parachains sync description.
+#[derive(Clone, Debug)]
+pub struct WestendParachainsToMillau;
+
+impl ParachainsPipeline for WestendParachainsToMillau {
+	type SourceChain = Westend;
+	type TargetChain = Millau;
+}
+
+impl SubstrateParachainsPipeline for WestendParachainsToMillau {
+	type SourceParachain = Westmint;
+	type SourceRelayChain = Westend;
+	type TargetChain = Millau;
+
+	type SubmitParachainHeadsCallBuilder = WestendParachainsToMillauSubmitParachainHeadsCallBuilder;
+	type TransactionSignScheme = Millau;
+
+	const SOURCE_PARACHAIN_PARA_ID: u32 = bp_westend::WESTMINT_PARACHAIN_ID;
+}
+
+/// `submit_parachain_heads` call builder for Rialto-to-Millau parachains sync pipeline.
+pub type WestendParachainsToMillauSubmitParachainHeadsCallBuilder =
+	DirectSubmitParachainHeadsCallBuilder<
+		WestendParachainsToMillau,
+		millau_runtime::Runtime,
+		millau_runtime::WithWestendParachainsInstance,
+	>;

bridges/relays/bin-substrate/src/cli/relay_parachains.rs

@@ -49,6 +49,7 @@ pub struct RelayParachains {
 #[strum(serialize_all = "kebab_case")]
 pub enum RelayParachainsBridge {
 	RialtoToMillau,
+	WestendToMillau,
 }
 
 macro_rules! select_bridge {
@@ -57,6 +58,11 @@ macro_rules! select_bridge {
 			RelayParachainsBridge::RialtoToMillau => {
 				use crate::chains::rialto_parachains_to_millau::RialtoParachainsToMillau as Pipeline;
 
+				$generic
+			},
+			RelayParachainsBridge::WestendToMillau => {
+				use crate::chains::westend_parachains_to_millau::WestendParachainsToMillau as Pipeline;
+
 				$generic
 			},
 		}