Versi chainspec based on Rococo. (#4485)

* Versi chainspec based on Rococo.

* Fix.

* Fix compilation without features.

* Spelling

* Another typo.

* Support versi in native version

* 🤦

* Regenerated genesis for versi.

* Update cli/src/command.rs

Co-authored-by: Bastian Köcher <info@kchr.de>
Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

polkadot/node/service/src/chain_spec.rs

@@ -106,6 +106,11 @@ pub type WestendChainSpec = DummyChainSpec;
 #[cfg(feature = "rococo-native")]
 pub type RococoChainSpec = service::GenericChainSpec<RococoGenesisExt, Extensions>;
 
+/// The `ChainSpec` parameterized for the `versi` runtime.
+///
+/// As of now `Versi` will just be a clone of `Rococo`, until we need it to differ.
+pub type VersiChainSpec = RococoChainSpec;
+
 /// The `ChainSpec` parameterized for the rococo runtime.
 // Dummy chain spec, but that is fine when we don't have the native runtime.
 #[cfg(not(feature = "rococo-native"))]
@@ -151,6 +156,10 @@ pub fn rococo_config() -> Result<RococoChainSpec, String> {
 	RococoChainSpec::from_json_bytes(&include_bytes!("../res/rococo.json")[..])
 }
 
+pub fn versi_config() -> Result<VersiChainSpec, String> {
+	VersiChainSpec::from_json_bytes(&include_bytes!("../res/versi.json")[..])
+}
+
 /// This is a temporary testnet that uses the same runtime as rococo.
 pub fn wococo_config() -> Result<RococoChainSpec, String> {
 	RococoChainSpec::from_json_bytes(&include_bytes!("../res/wococo.json")[..])
@@ -1690,6 +1699,28 @@ pub fn rococo_development_config() -> Result<RococoChainSpec, String> {
 	))
 }
 
+/// `Versi` development config (single validator Alice)
+#[cfg(feature = "rococo-native")]
+pub fn versi_development_config() -> Result<RococoChainSpec, String> {
+	let wasm_binary = rococo::WASM_BINARY.ok_or("Versi development wasm not available")?;
+
+	Ok(RococoChainSpec::from_genesis(
+		"Development",
+		"versi_dev",
+		ChainType::Development,
+		move || RococoGenesisExt {
+			runtime_genesis_config: rococo_development_config_genesis(wasm_binary),
+			// Use 1 minute session length.
+			session_length_in_blocks: Some(10),
+		},
+		vec![],
+		None,
+		Some("versi"),
+		None,
+		Default::default(),
+	))
+}
+
 /// Wococo development config (single validator Alice)
 #[cfg(feature = "rococo-native")]
 pub fn wococo_development_config() -> Result<RococoChainSpec, String> {
@@ -1854,6 +1885,22 @@ fn wococo_local_testnet_genesis(wasm_binary: &[u8]) -> rococo_runtime::GenesisCo
 	)
 }
 
+/// `Versi` is a temporary testnet that uses the same runtime as rococo.
+#[cfg(feature = "rococo-native")]
+fn versi_local_testnet_genesis(wasm_binary: &[u8]) -> rococo_runtime::GenesisConfig {
+	rococo_testnet_genesis(
+		wasm_binary,
+		vec![
+			get_authority_keys_from_seed("Alice"),
+			get_authority_keys_from_seed("Bob"),
+			get_authority_keys_from_seed("Charlie"),
+			get_authority_keys_from_seed("Dave"),
+		],
+		get_account_id_from_seed::<sr25519::Public>("Alice"),
+		None,
+	)
+}
+
 /// Wococo local testnet config (multivalidator Alice + Bob + Charlie + Dave)
 #[cfg(feature = "rococo-native")]
 pub fn wococo_local_testnet_config() -> Result<RococoChainSpec, String> {
@@ -1875,3 +1922,25 @@ pub fn wococo_local_testnet_config() -> Result<RococoChainSpec, String> {
 		Default::default(),
 	))
 }
+
+/// `Versi` local testnet config (multivalidator Alice + Bob + Charlie + Dave)
+#[cfg(feature = "rococo-native")]
+pub fn versi_local_testnet_config() -> Result<RococoChainSpec, String> {
+	let wasm_binary = rococo::WASM_BINARY.ok_or("Versi development wasm not available")?;
+
+	Ok(RococoChainSpec::from_genesis(
+		"Versi Local Testnet",
+		"versi_local_testnet",
+		ChainType::Local,
+		move || RococoGenesisExt {
+			runtime_genesis_config: versi_local_testnet_genesis(wasm_binary),
+			// Use 1 minute session length.
+			session_length_in_blocks: Some(10),
+		},
+		vec![],
+		None,
+		Some(DEFAULT_PROTOCOL_ID),
+		None,
+		Default::default(),
+	))
+}