Removed dependance on rococo_parachain_runtime for unrelated stuff (#1500)

* Clean misleading imports `rococo_parachain_runtime::{AccountId, AuraId}` * Remove dependance on `rococo_parachain_runtime` for unrelated stuff * fmt + rebase fix * Addressing review comments * Addressing review comments * Fix for `purge_chain_works` works now with `rococo-local` and purge command needs to allow `rococo-native`
2026-05-30 10:31:03 +00:00 · 2022-08-16 12:22:22 +02:00
parent b87815d933
commit ffe19fd0b7
19 changed files with 370 additions and 266 deletions
@@ -18,8 +18,7 @@ use crate::chain_spec::{
 	get_account_id_from_seed, get_collator_keys_from_seed, Extensions, SAFE_XCM_VERSION,
 };
 use cumulus_primitives_core::ParaId;
-use parachains_common::Balance as CollectivesBalance;
-use rococo_parachain_runtime::{AccountId, AuraId};
+use parachains_common::{AccountId, AuraId, Balance as CollectivesBalance};
 use sc_service::ChainType;
 use sp_core::sr25519;

@@ -19,7 +19,7 @@ use crate::chain_spec::{
 };
 use cumulus_primitives_core::ParaId;
 use hex_literal::hex;
-use rococo_parachain_runtime::{AccountId, AuraId};
+use parachains_common::{AccountId, AuraId};
 use sc_service::ChainType;
 use sp_core::{crypto::UncheckedInto, sr25519};

@@ -14,37 +14,24 @@
 // You should have received a copy of the GNU General Public License
 // along with Cumulus.  If not, see <http://www.gnu.org/licenses/>.

-use cumulus_primitives_core::ParaId;
-use hex_literal::hex;
-use rococo_parachain_runtime::{AccountId, AuraId, Signature};
+use parachains_common::{AccountId, Signature};
 use sc_chain_spec::{ChainSpecExtension, ChainSpecGroup};
-use sc_service::ChainType;
 use serde::{Deserialize, Serialize};
-use sp_core::{crypto::UncheckedInto, sr25519, Pair, Public};
+use sp_core::{Pair, Public};
 use sp_runtime::traits::{IdentifyAccount, Verify};

 pub mod collectives;
 pub mod contracts;
 pub mod penpal;
+pub mod rococo_parachain;
 pub mod seedling;
 pub mod shell;
 pub mod statemint;

-/// Specialized `ChainSpec` for the normal parachain runtime.
-pub type ChainSpec =
-	sc_service::GenericChainSpec<rococo_parachain_runtime::GenesisConfig, Extensions>;
-
 /// The default XCM version to set in genesis config.
 const SAFE_XCM_VERSION: u32 = xcm::prelude::XCM_VERSION;

-/// Helper function to generate a crypto pair from seed
-pub fn get_from_seed<TPublic: Public>(seed: &str) -> <TPublic::Pair as Pair>::Public {
-	TPublic::Pair::from_string(&format!("//{}", seed), None)
-		.expect("static values are valid; qed")
-		.public()
-}
-
-/// The extensions for the [`ChainSpec`].
+/// Generic extensions for Parachain ChainSpecs.
 #[derive(Debug, Clone, PartialEq, Serialize, Deserialize, ChainSpecGroup, ChainSpecExtension)]
 #[serde(deny_unknown_fields)]
 pub struct Extensions {
@@ -61,6 +48,13 @@ impl Extensions {
 	}
 }

+/// Helper function to generate a crypto pair from seed
+pub fn get_from_seed<TPublic: Public>(seed: &str) -> <TPublic::Pair as Pair>::Public {
+	TPublic::Pair::from_string(&format!("//{}", seed), None)
+		.expect("static values are valid; qed")
+		.public()
+}
+
 type AccountPublic = <Signature as Verify>::Signer;

 /// Helper function to generate an account ID from seed
@@ -71,108 +65,9 @@ where
 	AccountPublic::from(get_from_seed::<TPublic>(seed)).into_account()
 }

-pub fn get_chain_spec() -> ChainSpec {
-	ChainSpec::from_genesis(
-		"Local Testnet",
-		"local_testnet",
-		ChainType::Local,
-		move || {
-			testnet_genesis(
-				get_account_id_from_seed::<sr25519::Public>("Alice"),
-				vec![get_from_seed::<AuraId>("Alice"), get_from_seed::<AuraId>("Bob")],
-				vec![
-					get_account_id_from_seed::<sr25519::Public>("Alice"),
-					get_account_id_from_seed::<sr25519::Public>("Bob"),
-					get_account_id_from_seed::<sr25519::Public>("Charlie"),
-					get_account_id_from_seed::<sr25519::Public>("Dave"),
-					get_account_id_from_seed::<sr25519::Public>("Eve"),
-					get_account_id_from_seed::<sr25519::Public>("Ferdie"),
-					get_account_id_from_seed::<sr25519::Public>("Alice//stash"),
-					get_account_id_from_seed::<sr25519::Public>("Bob//stash"),
-					get_account_id_from_seed::<sr25519::Public>("Charlie//stash"),
-					get_account_id_from_seed::<sr25519::Public>("Dave//stash"),
-					get_account_id_from_seed::<sr25519::Public>("Eve//stash"),
-					get_account_id_from_seed::<sr25519::Public>("Ferdie//stash"),
-				],
-				1000.into(),
-			)
-		},
-		Vec::new(),
-		None,
-		None,
-		None,
-		None,
-		Extensions { relay_chain: "westend".into(), para_id: 1000 },
-	)
-}
-
-pub fn staging_test_net() -> ChainSpec {
-	ChainSpec::from_genesis(
-		"Staging Testnet",
-		"staging_testnet",
-		ChainType::Live,
-		move || {
-			testnet_genesis(
-				hex!["9ed7705e3c7da027ba0583a22a3212042f7e715d3c168ba14f1424e2bc111d00"].into(),
-				vec![
-					// $secret//one
-					hex!["aad9fa2249f87a210a0f93400b7f90e47b810c6d65caa0ca3f5af982904c2a33"]
-						.unchecked_into(),
-					// $secret//two
-					hex!["d47753f0cca9dd8da00c70e82ec4fc5501a69c49a5952a643d18802837c88212"]
-						.unchecked_into(),
-				],
-				vec![
-					hex!["9ed7705e3c7da027ba0583a22a3212042f7e715d3c168ba14f1424e2bc111d00"].into()
-				],
-				1000.into(),
-			)
-		},
-		Vec::new(),
-		None,
-		None,
-		None,
-		None,
-		Extensions { relay_chain: "westend".into(), para_id: 1000 },
-	)
-}
-
-fn testnet_genesis(
-	root_key: AccountId,
-	initial_authorities: Vec<AuraId>,
-	endowed_accounts: Vec<AccountId>,
-	id: ParaId,
-) -> rococo_parachain_runtime::GenesisConfig {
-	rococo_parachain_runtime::GenesisConfig {
-		system: rococo_parachain_runtime::SystemConfig {
-			code: rococo_parachain_runtime::WASM_BINARY
-				.expect("WASM binary was not build, please build it!")
-				.to_vec(),
-		},
-		balances: rococo_parachain_runtime::BalancesConfig {
-			balances: endowed_accounts.iter().cloned().map(|k| (k, 1 << 60)).collect(),
-		},
-		sudo: rococo_parachain_runtime::SudoConfig { key: Some(root_key) },
-		parachain_info: rococo_parachain_runtime::ParachainInfoConfig { parachain_id: id },
-		aura: rococo_parachain_runtime::AuraConfig { authorities: initial_authorities },
-		aura_ext: Default::default(),
-		parachain_system: Default::default(),
-		polkadot_xcm: rococo_parachain_runtime::PolkadotXcmConfig {
-			safe_xcm_version: Some(SAFE_XCM_VERSION),
-		},
-	}
-}
-
-/// Helper function to generate a crypto pair from seed
-pub fn get_public_from_seed<TPublic: Public>(seed: &str) -> <TPublic::Pair as Pair>::Public {
-	TPublic::Pair::from_string(&format!("//{}", seed), None)
-		.expect("static values are valid; qed")
-		.public()
-}
-
 /// Generate collator keys from seed.
 ///
 /// This function's return type must always match the session keys of the chain in tuple format.
 pub fn get_collator_keys_from_seed<AuraId: Public>(seed: &str) -> <AuraId::Pair as Pair>::Public {
-	get_public_from_seed::<AuraId>(seed)
+	get_from_seed::<AuraId>(seed)
 }
@@ -14,10 +14,11 @@
 // You should have received a copy of the GNU General Public License
 // along with Cumulus.  If not, see <http://www.gnu.org/licenses/>.

-use crate::chain_spec::{get_account_id_from_seed, Extensions};
+use crate::chain_spec::{
+	get_account_id_from_seed, get_collator_keys_from_seed, Extensions, SAFE_XCM_VERSION,
+};
 use cumulus_primitives_core::ParaId;
-// use rococo_parachain_runtime::{AuraId};
-use crate::chain_spec::{get_collator_keys_from_seed, SAFE_XCM_VERSION};
+use parachains_common::{AccountId, AuraId};
 use sc_service::ChainType;
 use sp_core::sr25519;
 /// Specialized `ChainSpec` for the normal parachain runtime.
@@ -42,11 +43,11 @@ pub fn get_penpal_chain_spec(id: ParaId, relay_chain: &str) -> PenpalChainSpec {
 				vec![
 					(
 						get_account_id_from_seed::<sr25519::Public>("Alice"),
-						get_collator_keys_from_seed::<penpal_runtime::AuraId>("Alice"),
+						get_collator_keys_from_seed::<AuraId>("Alice"),
 					),
 					(
 						get_account_id_from_seed::<sr25519::Public>("Bob"),
-						get_collator_keys_from_seed::<penpal_runtime::AuraId>("Bob"),
+						get_collator_keys_from_seed::<AuraId>("Bob"),
 					),
 				],
 				vec![
@@ -79,8 +80,8 @@ pub fn get_penpal_chain_spec(id: ParaId, relay_chain: &str) -> PenpalChainSpec {
 }

 fn penpal_testnet_genesis(
-	invulnerables: Vec<(penpal_runtime::AccountId, penpal_runtime::AuraId)>,
-	endowed_accounts: Vec<penpal_runtime::AccountId>,
+	invulnerables: Vec<(AccountId, AuraId)>,
+	endowed_accounts: Vec<AccountId>,
 	id: ParaId,
 ) -> penpal_runtime::GenesisConfig {
 	penpal_runtime::GenesisConfig {
@@ -131,6 +132,6 @@ fn penpal_testnet_genesis(
 /// Generate the session keys from individual elements.
 ///
 /// The input must be a tuple of individual keys (a single arg for now since we have just one key).
-pub fn penpal_session_keys(keys: penpal_runtime::AuraId) -> penpal_runtime::SessionKeys {
+pub fn penpal_session_keys(keys: AuraId) -> penpal_runtime::SessionKeys {
 	penpal_runtime::SessionKeys { aura: keys }
 }
@@ -0,0 +1,121 @@
+// Copyright 2022 Parity Technologies (UK) Ltd.
+// This file is part of Cumulus.
+
+// Cumulus 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.
+
+// Cumulus 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 Cumulus.  If not, see <http://www.gnu.org/licenses/>.
+
+//! ChainSpecs dedicated to Rococo parachain setups (for testing and example purposes)
+
+use crate::chain_spec::{get_from_seed, Extensions, SAFE_XCM_VERSION};
+use cumulus_primitives_core::ParaId;
+use hex_literal::hex;
+use parachains_common::AccountId;
+use polkadot_service::chain_spec::get_account_id_from_seed;
+use rococo_parachain_runtime::AuraId;
+use sc_chain_spec::ChainType;
+use sp_core::{crypto::UncheckedInto, sr25519};
+
+pub type RococoParachainChainSpec =
+	sc_service::GenericChainSpec<rococo_parachain_runtime::GenesisConfig, Extensions>;
+
+pub fn rococo_parachain_local_config() -> RococoParachainChainSpec {
+	RococoParachainChainSpec::from_genesis(
+		"Rococo Parachain Local",
+		"local_testnet",
+		ChainType::Local,
+		move || {
+			testnet_genesis(
+				get_account_id_from_seed::<sr25519::Public>("Alice"),
+				vec![get_from_seed::<AuraId>("Alice"), get_from_seed::<AuraId>("Bob")],
+				vec![
+					get_account_id_from_seed::<sr25519::Public>("Alice"),
+					get_account_id_from_seed::<sr25519::Public>("Bob"),
+					get_account_id_from_seed::<sr25519::Public>("Charlie"),
+					get_account_id_from_seed::<sr25519::Public>("Dave"),
+					get_account_id_from_seed::<sr25519::Public>("Eve"),
+					get_account_id_from_seed::<sr25519::Public>("Ferdie"),
+					get_account_id_from_seed::<sr25519::Public>("Alice//stash"),
+					get_account_id_from_seed::<sr25519::Public>("Bob//stash"),
+					get_account_id_from_seed::<sr25519::Public>("Charlie//stash"),
+					get_account_id_from_seed::<sr25519::Public>("Dave//stash"),
+					get_account_id_from_seed::<sr25519::Public>("Eve//stash"),
+					get_account_id_from_seed::<sr25519::Public>("Ferdie//stash"),
+				],
+				1000.into(),
+			)
+		},
+		Vec::new(),
+		None,
+		None,
+		None,
+		None,
+		Extensions { relay_chain: "rococo-local".into(), para_id: 1000 },
+	)
+}
+
+pub fn staging_rococo_parachain_local_config() -> RococoParachainChainSpec {
+	RococoParachainChainSpec::from_genesis(
+		"Staging Rococo Parachain Local",
+		"staging_testnet",
+		ChainType::Live,
+		move || {
+			testnet_genesis(
+				hex!["9ed7705e3c7da027ba0583a22a3212042f7e715d3c168ba14f1424e2bc111d00"].into(),
+				vec![
+					// $secret//one
+					hex!["aad9fa2249f87a210a0f93400b7f90e47b810c6d65caa0ca3f5af982904c2a33"]
+						.unchecked_into(),
+					// $secret//two
+					hex!["d47753f0cca9dd8da00c70e82ec4fc5501a69c49a5952a643d18802837c88212"]
+						.unchecked_into(),
+				],
+				vec![
+					hex!["9ed7705e3c7da027ba0583a22a3212042f7e715d3c168ba14f1424e2bc111d00"].into()
+				],
+				1000.into(),
+			)
+		},
+		Vec::new(),
+		None,
+		None,
+		None,
+		None,
+		Extensions { relay_chain: "rococo-local".into(), para_id: 1000 },
+	)
+}
+
+pub(crate) fn testnet_genesis(
+	root_key: AccountId,
+	initial_authorities: Vec<AuraId>,
+	endowed_accounts: Vec<AccountId>,
+	id: ParaId,
+) -> rococo_parachain_runtime::GenesisConfig {
+	rococo_parachain_runtime::GenesisConfig {
+		system: rococo_parachain_runtime::SystemConfig {
+			code: rococo_parachain_runtime::WASM_BINARY
+				.expect("WASM binary was not build, please build it!")
+				.to_vec(),
+		},
+		balances: rococo_parachain_runtime::BalancesConfig {
+			balances: endowed_accounts.iter().cloned().map(|k| (k, 1 << 60)).collect(),
+		},
+		sudo: rococo_parachain_runtime::SudoConfig { key: Some(root_key) },
+		parachain_info: rococo_parachain_runtime::ParachainInfoConfig { parachain_id: id },
+		aura: rococo_parachain_runtime::AuraConfig { authorities: initial_authorities },
+		aura_ext: Default::default(),
+		parachain_system: Default::default(),
+		polkadot_xcm: rococo_parachain_runtime::PolkadotXcmConfig {
+			safe_xcm_version: Some(SAFE_XCM_VERSION),
+		},
+	}
+}
@@ -16,7 +16,7 @@

 use crate::chain_spec::{get_account_id_from_seed, Extensions};
 use cumulus_primitives_core::ParaId;
-use rococo_parachain_runtime::AccountId;
+use parachains_common::AccountId;
 use sc_service::ChainType;
 use sp_core::sr25519;

@@ -19,8 +19,7 @@ use crate::chain_spec::{
 };
 use cumulus_primitives_core::ParaId;
 use hex_literal::hex;
-use parachains_common::{Balance as StatemintBalance, StatemintAuraId};
-use rococo_parachain_runtime::{AccountId, AuraId};
+use parachains_common::{AccountId, AuraId, Balance as StatemintBalance, StatemintAuraId};
 use sc_service::ChainType;
 use sp_core::{crypto::UncheckedInto, sr25519};

@@ -38,12 +38,15 @@ use sc_service::{
 };
 use sp_core::hexdisplay::HexDisplay;
 use sp_runtime::traits::{AccountIdConversion, Block as BlockT};
-use std::net::SocketAddr;
+use std::{net::SocketAddr, path::PathBuf};

-#[derive(Debug)]
+/// Helper enum that is used for better distinction of different parachain/runtime configuration
+/// (it is based/calculated on ChainSpec's ID attribute)
+#[derive(Debug, PartialEq, Default)]
 enum Runtime {
-	/// This is the default runtime (based on rococo)
-	Generic,
+	/// This is the default runtime (actually based on rococo)
+	#[default]
+	Default,
 	Shell,
 	Seedling,
 	Statemint,
@@ -55,22 +58,30 @@ enum Runtime {
 	CollectivesWestend,
 }

-trait ChainType {
+trait RuntimeResolver {
 	fn runtime(&self) -> Runtime;
 }

-impl ChainType for dyn ChainSpec {
+impl RuntimeResolver for dyn ChainSpec {
 	fn runtime(&self) -> Runtime {
 		runtime(self.id())
 	}
 }

-use sc_chain_spec::GenericChainSpec;
-impl ChainType
-	for GenericChainSpec<rococo_parachain_runtime::GenesisConfig, chain_spec::Extensions>
-{
+/// Implementation, that can resolve [`Runtime`] from any json configuration file
+impl RuntimeResolver for PathBuf {
 	fn runtime(&self) -> Runtime {
-		runtime(self.id())
+		#[derive(Debug, serde::Deserialize)]
+		struct EmptyChainSpecWithId {
+			id: String,
+		}
+
+		let file = std::fs::File::open(self).expect("Failed to open file");
+		let reader = std::io::BufReader::new(file);
+		let chain_spec: EmptyChainSpecWithId = sp_serializer::from_reader(reader)
+			.expect("Failed to read 'json' file with ChainSpec configuration");
+
+		runtime(&chain_spec.id)
 	}
 }

@@ -97,32 +108,41 @@ fn runtime(id: &str) -> Runtime {
 	} else if id.starts_with("collectives-westend") {
 		Runtime::CollectivesWestend
 	} else {
-		Runtime::Generic
+		log::warn!("No specific runtime was recognized for ChainSpec's id: '{}', so Runtime::default() will be used", id);
+		Runtime::default()
 	}
 }

 fn load_spec(id: &str) -> std::result::Result<Box<dyn ChainSpec>, String> {
 	let (id, _, para_id) = extract_parachain_id(id);
 	Ok(match id {
-		"staging" => Box::new(chain_spec::staging_test_net()),
-		"tick" => Box::new(chain_spec::ChainSpec::from_json_bytes(
-			&include_bytes!("../../parachains/chain-specs/tick.json")[..],
-		)?),
-		"trick" => Box::new(chain_spec::ChainSpec::from_json_bytes(
-			&include_bytes!("../../parachains/chain-specs/trick.json")[..],
-		)?),
-		"track" => Box::new(chain_spec::ChainSpec::from_json_bytes(
-			&include_bytes!("../../parachains/chain-specs/track.json")[..],
-		)?),
+		// - Defaul-like
+		"staging" =>
+			Box::new(chain_spec::rococo_parachain::staging_rococo_parachain_local_config()),
+		"tick" =>
+			Box::new(chain_spec::rococo_parachain::RococoParachainChainSpec::from_json_bytes(
+				&include_bytes!("../../parachains/chain-specs/tick.json")[..],
+			)?),
+		"trick" =>
+			Box::new(chain_spec::rococo_parachain::RococoParachainChainSpec::from_json_bytes(
+				&include_bytes!("../../parachains/chain-specs/trick.json")[..],
+			)?),
+		"track" =>
+			Box::new(chain_spec::rococo_parachain::RococoParachainChainSpec::from_json_bytes(
+				&include_bytes!("../../parachains/chain-specs/track.json")[..],
+			)?),
+
+		// -- Starters
 		"shell" => Box::new(chain_spec::shell::get_shell_chain_spec()),
-		// -- Statemint
 		"seedling" => Box::new(chain_spec::seedling::get_seedling_chain_spec()),
+
+		// -- Statemint
 		"statemint-dev" => Box::new(chain_spec::statemint::statemint_development_config()),
 		"statemint-local" => Box::new(chain_spec::statemint::statemint_local_config()),
 		// the chain spec as used for generating the upgrade genesis values
 		"statemint-genesis" => Box::new(chain_spec::statemint::statemint_config()),
 		// the shell-based chain spec as used for syncing
-		"statemint" => Box::new(chain_spec::ChainSpec::from_json_bytes(
+		"statemint" => Box::new(chain_spec::statemint::StatemintChainSpec::from_json_bytes(
 			&include_bytes!("../../parachains/chain-specs/statemint.json")[..],
 		)?),

@@ -132,7 +152,7 @@ fn load_spec(id: &str) -> std::result::Result<Box<dyn ChainSpec>, String> {
 		// the chain spec as used for generating the upgrade genesis values
 		"statemine-genesis" => Box::new(chain_spec::statemint::statemine_config()),
 		// the shell-based chain spec as used for syncing
-		"statemine" => Box::new(chain_spec::ChainSpec::from_json_bytes(
+		"statemine" => Box::new(chain_spec::statemint::StatemineChainSpec::from_json_bytes(
 			&include_bytes!("../../parachains/chain-specs/statemine.json")[..],
 		)?),

@@ -142,7 +162,7 @@ fn load_spec(id: &str) -> std::result::Result<Box<dyn ChainSpec>, String> {
 		// the chain spec as used for generating the upgrade genesis values
 		"westmint-genesis" => Box::new(chain_spec::statemint::westmint_config()),
 		// the shell-based chain spec as used for syncing
-		"westmint" => Box::new(chain_spec::ChainSpec::from_json_bytes(
+		"westmint" => Box::new(chain_spec::statemint::WestmintChainSpec::from_json_bytes(
 			&include_bytes!("../../parachains/chain-specs/westmint.json")[..],
 		)?),

@@ -151,12 +171,14 @@ fn load_spec(id: &str) -> std::result::Result<Box<dyn ChainSpec>, String> {
 			Box::new(chain_spec::collectives::collectives_polkadot_development_config()),
 		"collectives-polkadot-local" =>
 			Box::new(chain_spec::collectives::collectives_polkadot_local_config()),
-		"collectives-polkadot" => Box::new(chain_spec::ChainSpec::from_json_bytes(
-			&include_bytes!("../../parachains/chain-specs/collectives-polkadot.json")[..],
-		)?),
-		"collectives-westend" => Box::new(chain_spec::ChainSpec::from_json_bytes(
-			&include_bytes!("../../parachains/chain-specs/collectives-westend.json")[..],
-		)?),
+		"collectives-polkadot" =>
+			Box::new(chain_spec::collectives::CollectivesPolkadotChainSpec::from_json_bytes(
+				&include_bytes!("../../parachains/chain-specs/collectives-polkadot.json")[..],
+			)?),
+		"collectives-westend" =>
+			Box::new(chain_spec::collectives::CollectivesPolkadotChainSpec::from_json_bytes(
+				&include_bytes!("../../parachains/chain-specs/collectives-westend.json")[..],
+			)?),

 		// -- Contracts on Rococo
 		"contracts-rococo-dev" =>
@@ -164,9 +186,12 @@ fn load_spec(id: &str) -> std::result::Result<Box<dyn ChainSpec>, String> {
 		"contracts-rococo-local" =>
 			Box::new(chain_spec::contracts::contracts_rococo_local_config()),
 		"contracts-rococo-genesis" => Box::new(chain_spec::contracts::contracts_rococo_config()),
-		"contracts-rococo" => Box::new(chain_spec::ChainSpec::from_json_bytes(
-			&include_bytes!("../../parachains/chain-specs/contracts-rococo.json")[..],
-		)?),
+		"contracts-rococo" =>
+			Box::new(chain_spec::contracts::ContractsRococoChainSpec::from_json_bytes(
+				&include_bytes!("../../parachains/chain-specs/contracts-rococo.json")[..],
+			)?),
+
+		// -- Penpall
 		"penpal-kusama" => Box::new(chain_spec::penpal::get_penpal_chain_spec(
 			para_id.expect("Must specify parachain id"),
 			"kusama-local",
@@ -177,34 +202,35 @@ fn load_spec(id: &str) -> std::result::Result<Box<dyn ChainSpec>, String> {
 		)),

 		// -- Fallback (generic chainspec)
-		"" => Box::new(chain_spec::get_chain_spec()),
+		"" => {
+			log::warn!("No ChainSpec.id specified, so using default one, based on rococo-parachain runtime");
+			Box::new(chain_spec::rococo_parachain::rococo_parachain_local_config())
+		},

 		// -- Loading a specific spec from disk
 		path => {
-			let chain_spec = chain_spec::ChainSpec::from_json_file(path.into())?;
-			match chain_spec.runtime() {
-				Runtime::Statemint => Box::new(
-					chain_spec::statemint::StatemintChainSpec::from_json_file(path.into())?,
-				),
-				Runtime::Statemine => Box::new(
-					chain_spec::statemint::StatemineChainSpec::from_json_file(path.into())?,
-				),
+			let path: PathBuf = path.into();
+			match path.runtime() {
+				Runtime::Statemint =>
+					Box::new(chain_spec::statemint::StatemintChainSpec::from_json_file(path)?),
+				Runtime::Statemine =>
+					Box::new(chain_spec::statemint::StatemineChainSpec::from_json_file(path)?),
 				Runtime::Westmint =>
-					Box::new(chain_spec::statemint::WestmintChainSpec::from_json_file(path.into())?),
-				Runtime::CollectivesPolkadot | Runtime::CollectivesWestend =>
-					Box::new(chain_spec::collectives::CollectivesPolkadotChainSpec::from_json_file(
-						path.into(),
-					)?),
-				Runtime::Shell =>
-					Box::new(chain_spec::shell::ShellChainSpec::from_json_file(path.into())?),
-				Runtime::Seedling =>
-					Box::new(chain_spec::seedling::SeedlingChainSpec::from_json_file(path.into())?),
-				Runtime::ContractsRococo => Box::new(
-					chain_spec::contracts::ContractsRococoChainSpec::from_json_file(path.into())?,
+					Box::new(chain_spec::statemint::WestmintChainSpec::from_json_file(path)?),
+				Runtime::CollectivesPolkadot | Runtime::CollectivesWestend => Box::new(
+					chain_spec::collectives::CollectivesPolkadotChainSpec::from_json_file(path)?,
 				),
+				Runtime::Shell =>
+					Box::new(chain_spec::shell::ShellChainSpec::from_json_file(path)?),
+				Runtime::Seedling =>
+					Box::new(chain_spec::seedling::SeedlingChainSpec::from_json_file(path)?),
+				Runtime::ContractsRococo =>
+					Box::new(chain_spec::contracts::ContractsRococoChainSpec::from_json_file(path)?),
 				Runtime::Penpal(_para_id) =>
-					Box::new(chain_spec::penpal::PenpalChainSpec::from_json_file(path.into())?),
-				Runtime::Generic => Box::new(chain_spec),
+					Box::new(chain_spec::penpal::PenpalChainSpec::from_json_file(path)?),
+				Runtime::Default => Box::new(
+					chain_spec::rococo_parachain::RococoParachainChainSpec::from_json_file(path)?,
+				),
 			}
 		},
 	})
@@ -263,7 +289,7 @@ impl SubstrateCli for Cli {
 		2017
 	}

-	fn load_spec(&self, id: &str) -> std::result::Result<Box<dyn sc_service::ChainSpec>, String> {
+	fn load_spec(&self, id: &str) -> std::result::Result<Box<dyn ChainSpec>, String> {
 		load_spec(id)
 	}

@@ -278,7 +304,7 @@ impl SubstrateCli for Cli {
 			Runtime::Seedling => &seedling_runtime::VERSION,
 			Runtime::ContractsRococo => &contracts_rococo_runtime::VERSION,
 			Runtime::Penpal(_) => &penpal_runtime::VERSION,
-			Runtime::Generic => &rococo_parachain_runtime::VERSION,
+			Runtime::Default => &rococo_parachain_runtime::VERSION,
 		}
 	}
 }
@@ -314,7 +340,7 @@ impl SubstrateCli for RelayChainCli {
 		2017
 	}

-	fn load_spec(&self, id: &str) -> std::result::Result<Box<dyn sc_service::ChainSpec>, String> {
+	fn load_spec(&self, id: &str) -> std::result::Result<Box<dyn ChainSpec>, String> {
 		polkadot_cli::Cli::from_iter([RelayChainCli::executable_name()].iter()).load_spec(id)
 	}

@@ -434,7 +460,7 @@ macro_rules! construct_async_run {
 					{ $( $code )* }.map(|v| (v, task_manager))
 				})
 			},
-			Runtime::Penpal(_) | Runtime::Generic => {
+			Runtime::Penpal(_) | Runtime::Default => {
 				runner.async_run(|$config| {
 					let $components = new_partial::<
 						rococo_parachain_runtime::RuntimeApi,
@@ -700,7 +726,7 @@ pub fn run() -> Result<()> {
 					.await
 					.map(|r| r.0)
 					.map_err(Into::into),
-					Runtime::Penpal(_) | Runtime::Generic =>
+					Runtime::Penpal(_) | Runtime::Default =>
 						crate::service::start_rococo_parachain_node(
 							config,
 							polkadot_config,
@@ -853,3 +879,118 @@ impl CliConfiguration<Self> for RelayChainCli {
 		self.base.base.node_name()
 	}
 }
+
+#[cfg(test)]
+mod tests {
+	use crate::{
+		chain_spec::{get_account_id_from_seed, get_from_seed},
+		command::{Runtime, RuntimeResolver},
+	};
+	use sc_chain_spec::{ChainSpec, ChainSpecExtension, ChainSpecGroup, ChainType, Extension};
+	use serde::{Deserialize, Serialize};
+	use sp_core::sr25519;
+	use std::path::PathBuf;
+	use tempfile::TempDir;
+
+	#[derive(
+		Debug, Clone, PartialEq, Serialize, Deserialize, ChainSpecGroup, ChainSpecExtension, Default,
+	)]
+	#[serde(deny_unknown_fields)]
+	pub struct Extensions1 {
+		pub attribute1: String,
+		pub attribute2: u32,
+	}
+
+	#[derive(
+		Debug, Clone, PartialEq, Serialize, Deserialize, ChainSpecGroup, ChainSpecExtension, Default,
+	)]
+	#[serde(deny_unknown_fields)]
+	pub struct Extensions2 {
+		pub attribute_x: String,
+		pub attribute_y: String,
+		pub attribute_z: u32,
+	}
+
+	fn store_configuration(dir: &TempDir, spec: Box<dyn ChainSpec>) -> PathBuf {
+		let raw_output = true;
+		let json = sc_service::chain_ops::build_spec(&*spec, raw_output)
+			.expect("Failed to build json string");
+		let mut cfg_file_path = dir.path().to_path_buf();
+		cfg_file_path.push(spec.id());
+		cfg_file_path.set_extension("json");
+		std::fs::write(&cfg_file_path, json).expect("Failed to write to json file");
+		cfg_file_path
+	}
+
+	pub type DummyChainSpec<E> =
+		sc_service::GenericChainSpec<rococo_parachain_runtime::GenesisConfig, E>;
+
+	pub fn create_default_with_extensions<E: Extension>(
+		id: &str,
+		extension: E,
+	) -> DummyChainSpec<E> {
+		DummyChainSpec::from_genesis(
+			"Dummy local testnet",
+			id,
+			ChainType::Local,
+			move || {
+				crate::chain_spec::rococo_parachain::testnet_genesis(
+					get_account_id_from_seed::<sr25519::Public>("Alice"),
+					vec![
+						get_from_seed::<rococo_parachain_runtime::AuraId>("Alice"),
+						get_from_seed::<rococo_parachain_runtime::AuraId>("Bob"),
+					],
+					vec![get_account_id_from_seed::<sr25519::Public>("Alice")],
+					1000.into(),
+				)
+			},
+			Vec::new(),
+			None,
+			None,
+			None,
+			None,
+			extension,
+		)
+	}
+
+	#[test]
+	fn test_resolve_runtime_for_different_configuration_files() {
+		let temp_dir = tempfile::tempdir().expect("Failed to access tempdir");
+
+		let path = store_configuration(
+			&temp_dir,
+			Box::new(create_default_with_extensions("shell-1", Extensions1::default())),
+		);
+		assert_eq!(Runtime::Shell, path.runtime());
+
+		let path = store_configuration(
+			&temp_dir,
+			Box::new(create_default_with_extensions("shell-2", Extensions2::default())),
+		);
+		assert_eq!(Runtime::Shell, path.runtime());
+
+		let path = store_configuration(
+			&temp_dir,
+			Box::new(create_default_with_extensions("seedling", Extensions2::default())),
+		);
+		assert_eq!(Runtime::Seedling, path.runtime());
+
+		let path = store_configuration(
+			&temp_dir,
+			Box::new(crate::chain_spec::rococo_parachain::rococo_parachain_local_config()),
+		);
+		assert_eq!(Runtime::Default, path.runtime());
+
+		let path = store_configuration(
+			&temp_dir,
+			Box::new(crate::chain_spec::statemint::statemine_local_config()),
+		);
+		assert_eq!(Runtime::Statemine, path.runtime());
+
+		let path = store_configuration(
+			&temp_dir,
+			Box::new(crate::chain_spec::contracts::contracts_rococo_local_config()),
+		);
+		assert_eq!(Runtime::ContractsRococo, path.runtime());
+	}
+}
@@ -69,21 +69,6 @@ type HostFunctions = sp_io::SubstrateHostFunctions;
 type HostFunctions =
 	(sp_io::SubstrateHostFunctions, frame_benchmarking::benchmarking::HostFunctions);

-/// Native executor instance.
-pub struct RococoParachainRuntimeExecutor;
-
-impl sc_executor::NativeExecutionDispatch for RococoParachainRuntimeExecutor {
-	type ExtendHostFunctions = ();
-
-	fn dispatch(method: &str, data: &[u8]) -> Option<Vec<u8>> {
-		rococo_parachain_runtime::api::dispatch(method, data)
-	}
-
-	fn native_version() -> sc_executor::NativeVersion {
-		rococo_parachain_runtime::native_version()
-	}
-}
-
 /// Native executor instance.
 pub struct ShellRuntimeExecutor;

@@ -99,21 +84,6 @@ impl sc_executor::NativeExecutionDispatch for ShellRuntimeExecutor {
 	}
 }

-/// Native executor instance.
-pub struct SeedlingRuntimeExecutor;
-
-impl sc_executor::NativeExecutionDispatch for SeedlingRuntimeExecutor {
-	type ExtendHostFunctions = ();
-
-	fn dispatch(method: &str, data: &[u8]) -> Option<Vec<u8>> {
-		seedling_runtime::api::dispatch(method, data)
-	}
-
-	fn native_version() -> sc_executor::NativeVersion {
-		seedling_runtime::native_version()
-	}
-}
-
 // Native Statemint executor instance.
 pub struct StatemintRuntimeExecutor;

@@ -174,21 +144,6 @@ impl sc_executor::NativeExecutionDispatch for CollectivesPolkadotRuntimeExecutor
 	}
 }

-/// Native Contracts on Rococo executor instance.
-pub struct ContractsRococoRuntimeExecutor;
-
-impl sc_executor::NativeExecutionDispatch for ContractsRococoRuntimeExecutor {
-	type ExtendHostFunctions = frame_benchmarking::benchmarking::HostFunctions;
-
-	fn dispatch(method: &str, data: &[u8]) -> Option<Vec<u8>> {
-		contracts_rococo_runtime::api::dispatch(method, data)
-	}
-
-	fn native_version() -> sc_executor::NativeVersion {
-		contracts_rococo_runtime::native_version()
-	}
-}
-
 /// Starts a `ServiceBuilder` for a full service.
 ///
 /// Use this macro if you don't actually need the full service, but just the builder in order to