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@gavofyork @xlc @bkchr
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use primitives::{ed25519, Pair};
use node_template_runtime::{
AccountId, GenesisConfig, ConsensusConfig, TimestampConfig, BalancesConfig,
SudoConfig, IndicesConfig,
};
use substrate_service;
use ed25519::Public as AuthorityId;
// Note this is the URL for the telemetry server
//const STAGING_TELEMETRY_URL: &str = "wss://telemetry.polkadot.io/submit/";
/// Specialised `ChainSpec`. This is a specialisation of the general Substrate ChainSpec type.
pub type ChainSpec = substrate_service::ChainSpec<GenesisConfig>;
/// The chain specification option. This is expected to come in from the CLI and
/// is little more than one of a number of alternatives which can easily be converted
/// from a string (`--chain=...`) into a `ChainSpec`.
#[derive(Clone, Debug)]
pub enum Alternative {
/// Whatever the current runtime is, with just Alice as an auth.
Development,
/// Whatever the current runtime is, with simple Alice/Bob auths.
LocalTestnet,
}
fn authority_key(s: &str) -> AuthorityId {
ed25519::Pair::from_string(&format!("//{}", s), None)
.expect("static values are valid; qed")
.public()
}
fn account_key(s: &str) -> AccountId {
ed25519::Pair::from_string(&format!("//{}", s), None)
.expect("static values are valid; qed")
.public()
}
impl Alternative {
/// Get an actual chain config from one of the alternatives.
pub(crate) fn load(self) -> Result<ChainSpec, String> {
Ok(match self {
Alternative::Development => ChainSpec::from_genesis(
"Development",
"dev",
|| testnet_genesis(vec![
authority_key("Alice")
], vec![
account_key("Alice")
],
account_key("Alice")
),
vec![],
None,
None,
None,
None
),
Alternative::LocalTestnet => ChainSpec::from_genesis(
"Local Testnet",
"local_testnet",
|| testnet_genesis(vec![
authority_key("Alice"),
authority_key("Bob"),
], vec![
account_key("Alice"),
account_key("Bob"),
account_key("Charlie"),
account_key("Dave"),
account_key("Eve"),
account_key("Ferdie"),
],
account_key("Alice"),
),
vec![],
None,
None,
None,
None
),
})
}
pub(crate) fn from(s: &str) -> Option<Self> {
match s {
"dev" => Some(Alternative::Development),
"" | "local" => Some(Alternative::LocalTestnet),
_ => None,
}
}
}
fn testnet_genesis(initial_authorities: Vec<AuthorityId>, endowed_accounts: Vec<AccountId>, root_key: AccountId) -> GenesisConfig {
GenesisConfig {
consensus: Some(ConsensusConfig {
code: include_bytes!("../runtime/wasm/target/wasm32-unknown-unknown/release/node_template_runtime_wasm.compact.wasm").to_vec(),
authorities: initial_authorities.clone(),
}),
system: None,
timestamp: Some(TimestampConfig {
period: 5, // 5 second block time.
}),
indices: Some(IndicesConfig {
ids: endowed_accounts.clone(),
}),
balances: Some(BalancesConfig {
transaction_base_fee: 1,
transaction_byte_fee: 0,
existential_deposit: 500,
transfer_fee: 0,
creation_fee: 0,
balances: endowed_accounts.iter().cloned().map(|k|(k, 1 << 60)).collect(),
vesting: vec![],
}),
sudo: Some(SudoConfig {
key: root_key,
}),
}
}
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