Add spec for westend network (#792)

* add json

* Add spec changes

* Fix config method

* spaces -> tabs

polkadot/cli/src/chain_spec.rs

@@ -28,6 +28,8 @@ pub enum ChainSpec {
 	LocalTestnet,
 	/// The Kusama network.
 	Kusama,
+	/// The Westend network,
+	Westend,
 	/// Whatever the current runtime is with the "global testnet" defaults.
 	StagingTestnet,
 }
@@ -45,6 +47,7 @@ impl ChainSpec {
 			ChainSpec::Development => Ok(service::chain_spec::development_config()),
 			ChainSpec::LocalTestnet => Ok(service::chain_spec::local_testnet_config()),
 			ChainSpec::StagingTestnet => Ok(service::chain_spec::staging_testnet_config()),
+			ChainSpec::Westend => service::chain_spec::westend_config(),
 			ChainSpec::Kusama => service::chain_spec::kusama_config(),
 		}
 	}
@@ -54,6 +57,7 @@ impl ChainSpec {
 			"dev" => Some(ChainSpec::Development),
 			"local" => Some(ChainSpec::LocalTestnet),
 			"kusama" => Some(ChainSpec::Kusama),
+			"westend" => Some(ChainSpec::Westend),
 			"staging" => Some(ChainSpec::StagingTestnet),
 			"" => Some(ChainSpec::default()),
 			_ => None,

polkadot/service/src/chain_spec.rs

@@ -60,6 +60,10 @@ pub fn kusama_config() -> Result<ChainSpec, String> {
 	ChainSpec::from_json_bytes(&include_bytes!("../res/kusama.json")[..])
 }
 
+pub fn westend_config() -> Result<ChainSpec, String> {
+	ChainSpec::from_json_bytes(&include_bytes!("../res/westend.json")[..])
+}
+
 fn session_keys(
 	babe: BabeId,
 	grandpa: GrandpaId,