Statemine state migration runtime changes.

parachains/runtimes/assets/statemine/Cargo.toml

@@ -7,7 +7,7 @@ description = "Kusama variant of Statemint parachain runtime"
 
 [dependencies]
 codec = { package = "parity-scale-codec", version = "3.0.0", default-features = false, features = ["derive", "max-encoded-len"] }
-hex-literal = { version = "0.3.4", optional = true }
+hex-literal = { version = "0.3.4" }
 log = { version = "0.4.17", default-features = false }
 scale-info = { version = "2.2.0", default-features = false, features = ["derive"] }
 smallvec = "1.10.0"
@@ -44,6 +44,7 @@ sp-session = { git = "https://github.com/paritytech/substrate", default-features
 sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
 sp-transaction-pool = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
 sp-version = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
+pallet-state-trie-migration = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master", optional = true }
 
 # Polkadot
 kusama-runtime-constants = { git = "https://github.com/paritytech/polkadot", default-features = false, branch = "master" }
@@ -72,16 +73,22 @@ pallet-xcm-benchmarks = { git = "https://github.com/paritytech/polkadot", branch
 
 
 [dev-dependencies]
-hex-literal = "0.3.4"
 asset-test-utils = { path = "../test-utils"}
 
 [build-dependencies]
 substrate-wasm-builder = { git = "https://github.com/paritytech/substrate", branch = "master" }
 
 [features]
 default = [ "std" ]
+# When enabled the `state_version` is set to `1`.
+# This means that the chain will start using the new state format. The migration is lazy, so
+# it requires to write a storage value to use the new state format. To migrate all the other
+# storage values that aren't touched the state migration pallet is added as well.
+# This pallet will migrate the entire state, controlled through some account.
+#
+# This feature should be removed when the main-net will be migrated.
+state-trie-migration = ["pallet-state-trie-migration"]
 runtime-benchmarks = [
-	"hex-literal",
 	"frame-benchmarking/runtime-benchmarks",
 	"frame-support/runtime-benchmarks",
 	"frame-system-benchmarking/runtime-benchmarks",
@@ -143,6 +150,7 @@ std = [
 	"pallet-multisig/std",
 	"pallet-proxy/std",
 	"pallet-session/std",
+	"pallet-state-trie-migration/std",
 	"pallet-timestamp/std",
 	"pallet-transaction-payment-rpc-runtime-api/std",
 	"pallet-transaction-payment/std",

parachains/runtimes/assets/statemine/src/lib.rs

@@ -82,6 +82,20 @@ impl_opaque_keys! {
 	}
 }
 
+#[cfg(feature = "state-trie-migration")]
+#[sp_version::runtime_version]
+pub const VERSION: RuntimeVersion = RuntimeVersion {
+	spec_name: create_runtime_str!("statemine"),
+	impl_name: create_runtime_str!("statemine"),
+	authoring_version: 1,
+	spec_version: 9300,
+	impl_version: 0,
+	apis: RUNTIME_API_VERSIONS,
+	transaction_version: 8,
+	state_version: 1,
+};
+
+#[cfg(not(feature = "state-trie-migration"))]
 #[sp_version::runtime_version]
 pub const VERSION: RuntimeVersion = RuntimeVersion {
 	spec_name: create_runtime_str!("statemine"),
@@ -596,6 +610,9 @@ construct_runtime!(
 		// The main stage.
 		Assets: pallet_assets::{Pallet, Call, Storage, Event<T>} = 50,
 		Uniques: pallet_uniques::{Pallet, Call, Storage, Event<T>} = 51,
+
+		#[cfg(feature = "state-trie-migration")]
+		StateTrieMigration: pallet_state_trie_migration = 70,
 	}
 );
 
@@ -979,3 +996,49 @@ cumulus_pallet_parachain_system::register_validate_block! {
 	BlockExecutor = cumulus_pallet_aura_ext::BlockExecutor::<Runtime, Executive>,
 	CheckInherents = CheckInherents,
 }
+
+#[cfg(feature = "state-trie-migration")]
+parameter_types! {
+	// The deposit configuration for the singed migration. Specially if you want to allow any signed account to do the migration (see `SignedFilter`, these deposits should be high)
+	pub const MigrationSignedDepositPerItem: Balance = 1 * CENTS;
+	pub const MigrationSignedDepositBase: Balance = 2_000 * CENTS;
+	pub const MigrationMaxKeyLen: u32 = 512;
+}
+
+#[cfg(feature = "state-trie-migration")]
+impl pallet_state_trie_migration::Config for Runtime {
+	type RuntimeEvent = RuntimeEvent;
+	type Currency = Balances;
+	type SignedDepositPerItem = MigrationSignedDepositPerItem;
+	type SignedDepositBase = MigrationSignedDepositBase;
+	// An origin that can control the whole pallet: should be Root, or a part of your council.
+	type ControlOrigin = frame_system::EnsureSignedBy<RootMigController, AccountId>;
+	// specific account for the migration, can trigger the signed migrations.
+	type SignedFilter = frame_system::EnsureSignedBy<MigController, AccountId>;
+
+	// Replace this with weight based on your runtime.
+	type WeightInfo = pallet_state_trie_migration::weights::SubstrateWeight<Runtime>;
+
+	type MaxKeyLen = MigrationMaxKeyLen;
+}
+
+#[cfg(feature = "state-trie-migration")]
+frame_support::ord_parameter_types! {
+	pub const MigController: AccountId = AccountId::from(hex_literal::hex!("52bc71c1eca5353749542dfdf0af97bf764f9c2f44e860cd485f1cd86400f649"));
+	pub const RootMigController: AccountId = AccountId::from(hex_literal::hex!("52bc71c1eca5353749542dfdf0af97bf764f9c2f44e860cd485f1cd86400f649"));
+}
+
+#[cfg(feature = "state-trie-migration")]
+#[test]
+fn ensure_key_ss58() {
+	use frame_support::traits::SortedMembers;
+	use sp_core::crypto::Ss58Codec;
+	let acc =
+		AccountId::from_ss58check("5DwBmEFPXRESyEam5SsQF1zbWSCn2kCjyLW51hJHXe9vW4xs").unwrap();
+	//panic!("{:x?}", acc);
+	assert_eq!(acc, MigController::sorted_members()[0]);
+	let acc =
+		AccountId::from_ss58check("5DwBmEFPXRESyEam5SsQF1zbWSCn2kCjyLW51hJHXe9vW4xs").unwrap();
+	assert_eq!(acc, RootMigController::sorted_members()[0]);
+	//panic!("{:x?}", acc);
+}