`8b6fe6666d58`

source

src/chain_spec.rs4.6 KiBsource history
1use sp_core::{Pair, Public, sr25519};2use node_template_runtime::{3	AccountId, AuraConfig, BalancesConfig, GenesisConfig, GrandpaConfig,4	SudoConfig, IndicesConfig, SystemConfig, WASM_BINARY, Signature5};6use sp_consensus_aura::sr25519::{AuthorityId as AuraId};7use grandpa_primitives::{AuthorityId as GrandpaId};8use sc_service;9use sp_runtime::traits::{Verify, IdentifyAccount};1011// Note this is the URL for the telemetry server12//const STAGING_TELEMETRY_URL: &str = "wss://telemetry.polkadot.io/submit/";1314/// Specialized `ChainSpec`. This is a specialization of the general Substrate ChainSpec type.15pub type ChainSpec = sc_service::ChainSpec<GenesisConfig>;1617/// The chain specification option. This is expected to come in from the CLI and18/// is little more than one of a number of alternatives which can easily be converted19/// from a string (`--chain=...`) into a `ChainSpec`.20#[derive(Clone, Debug)]21pub enum Alternative {22	/// Whatever the current runtime is, with just Alice as an auth.23	Development,24	/// Whatever the current runtime is, with simple Alice/Bob auths.25	LocalTestnet,26}2728/// Helper function to generate a crypto pair from seed29pub fn get_from_seed<TPublic: Public>(seed: &str) -> <TPublic::Pair as Pair>::Public {30	TPublic::Pair::from_string(&format!("//{}", seed), None)31		.expect("static values are valid; qed")32		.public()33}3435type AccountPublic = <Signature as Verify>::Signer;3637/// Helper function to generate an account ID from seed38pub fn get_account_id_from_seed<TPublic: Public>(seed: &str) -> AccountId where39	AccountPublic: From<<TPublic::Pair as Pair>::Public>40{41	AccountPublic::from(get_from_seed::<TPublic>(seed)).into_account()42}4344/// Helper function to generate an authority key for Aura45pub fn get_authority_keys_from_seed(s: &str) -> (AuraId, GrandpaId) {46	(47		get_from_seed::<AuraId>(s),48		get_from_seed::<GrandpaId>(s),49	)50}5152impl Alternative {53	/// Get an actual chain config from one of the alternatives.54	pub(crate) fn load(self) -> Result<ChainSpec, String> {55		Ok(match self {56			Alternative::Development => ChainSpec::from_genesis(57				"Development",58				"dev",59				|| testnet_genesis(vec![60					get_authority_keys_from_seed("Alice"),61				],62				get_account_id_from_seed::<sr25519::Public>("Alice"),63				vec![64					get_account_id_from_seed::<sr25519::Public>("Alice"),65					get_account_id_from_seed::<sr25519::Public>("Bob"),66					get_account_id_from_seed::<sr25519::Public>("Alice//stash"),67					get_account_id_from_seed::<sr25519::Public>("Bob//stash"),68				],69				true),70				vec![],71				None,72				None,73				None,74				None75			),76			Alternative::LocalTestnet => ChainSpec::from_genesis(77				"Local Testnet",78				"local_testnet",79				|| testnet_genesis(vec![80					get_authority_keys_from_seed("Alice"),81					get_authority_keys_from_seed("Bob"),82				],83				get_account_id_from_seed::<sr25519::Public>("Alice"),84				vec![85					get_account_id_from_seed::<sr25519::Public>("Alice"),86					get_account_id_from_seed::<sr25519::Public>("Bob"),87					get_account_id_from_seed::<sr25519::Public>("Charlie"),88					get_account_id_from_seed::<sr25519::Public>("Dave"),89					get_account_id_from_seed::<sr25519::Public>("Eve"),90					get_account_id_from_seed::<sr25519::Public>("Ferdie"),91					get_account_id_from_seed::<sr25519::Public>("Alice//stash"),92					get_account_id_from_seed::<sr25519::Public>("Bob//stash"),93					get_account_id_from_seed::<sr25519::Public>("Charlie//stash"),94					get_account_id_from_seed::<sr25519::Public>("Dave//stash"),95					get_account_id_from_seed::<sr25519::Public>("Eve//stash"),96					get_account_id_from_seed::<sr25519::Public>("Ferdie//stash"),97				],98				true),99				vec![],100				None,101				None,102				None,103				None104			),105		})106	}107108	pub(crate) fn from(s: &str) -> Option<Self> {109		match s {110			"dev" => Some(Alternative::Development),111			"" | "local" => Some(Alternative::LocalTestnet),112			_ => None,113		}114	}115}116117fn testnet_genesis(initial_authorities: Vec<(AuraId, GrandpaId)>,118	root_key: AccountId,119	endowed_accounts: Vec<AccountId>,120	_enable_println: bool) -> GenesisConfig {121	GenesisConfig {122		system: Some(SystemConfig {123			code: WASM_BINARY.to_vec(),124			changes_trie_config: Default::default(),125		}),126		indices: Some(IndicesConfig {127			ids: endowed_accounts.clone(),128		}),129		balances: Some(BalancesConfig {130			balances: endowed_accounts.iter().cloned().map(|k|(k, 1 << 60)).collect(),131			vesting: vec![],132		}),133		sudo: Some(SudoConfig {134			key: root_key,135		}),136		aura: Some(AuraConfig {137			authorities: initial_authorities.iter().map(|x| (x.0.clone())).collect(),138		}),139		grandpa: Some(GrandpaConfig {140			authorities: initial_authorities.iter().map(|x| (x.1.clone(), 1)).collect(),141		}),142	}143}