Companion for substrate#9878

runtime/kusama/src/lib.rs

@@ -51,7 +51,7 @@ use frame_support::{
 	construct_runtime, match_type, parameter_types,
 	traits::{
 		Contains, Everything, InstanceFilter, KeyOwnerProofSystem, LockIdentifier, Nothing,
-		PrivilegeCmp,
+		OnRuntimeUpgrade, PrivilegeCmp,
 	},
 	weights::Weight,
 	PalletId, RuntimeDebug,
@@ -1593,11 +1593,32 @@ pub type Executive = frame_executive::Executive<
 	frame_system::ChainContext<Runtime>,
 	Runtime,
 	AllPallets,
-	(),
+	(SessionHistoricalPalletPrefixMigration,),
 >;
 /// The payload being signed in the transactions.
 pub type SignedPayload = generic::SignedPayload<Call, SignedExtra>;
 
+/// Migrate session-historical from `Session` to the new pallet prefix `Historical`
+pub struct SessionHistoricalPalletPrefixMigration;
+
+impl OnRuntimeUpgrade for SessionHistoricalPalletPrefixMigration {
+	fn on_runtime_upgrade() -> frame_support::weights::Weight {
+		pallet_session::migrations::v1::migrate::<Runtime, Historical>()
+	}
+
+	#[cfg(feature = "try-runtime")]
+	fn pre_upgrade() -> Result<(), &'static str> {
+		pallet_session::migrations::v1::pre_migrate::<Runtime, Historical>();
+		Ok(())
+	}
+
+	#[cfg(feature = "try-runtime")]
+	fn post_upgrade() -> Result<(), &'static str> {
+		pallet_session::migrations::v1::post_migrate::<Runtime, Historical>();
+		Ok(())
+	}
+}
+
 #[cfg(not(feature = "disable-runtime-api"))]
 sp_api::impl_runtime_apis! {
 	impl sp_api::Core<Block> for Runtime {

runtime/polkadot/src/lib.rs

@@ -1394,7 +1394,7 @@ pub type Executive = frame_executive::Executive<
 	frame_system::ChainContext<Runtime>,
 	Runtime,
 	AllPallets,
-	StakingBagsListMigrationV8,
+	(StakingBagsListMigrationV8, SessionHistoricalPalletPrefixMigration),
 >;
 /// The payload being signed in transactions.
 pub type SignedPayload = generic::SignedPayload<Call, SignedExtra>;
@@ -1418,6 +1418,27 @@ impl OnRuntimeUpgrade for StakingBagsListMigrationV8 {
 	}
 }
 
+/// Migrate session-historical from `Session` to the new pallet prefix `Historical`
+pub struct SessionHistoricalPalletPrefixMigration;
+
+impl OnRuntimeUpgrade for SessionHistoricalPalletPrefixMigration {
+	fn on_runtime_upgrade() -> frame_support::weights::Weight {
+		pallet_session::migrations::v1::migrate::<Runtime, Historical>()
+	}
+
+	#[cfg(feature = "try-runtime")]
+	fn pre_upgrade() -> Result<(), &'static str> {
+		pallet_session::migrations::v1::pre_migrate::<Runtime, Historical>();
+		Ok(())
+	}
+
+	#[cfg(feature = "try-runtime")]
+	fn post_upgrade() -> Result<(), &'static str> {
+		pallet_session::migrations::v1::post_migrate::<Runtime, Historical>();
+		Ok(())
+	}
+}
+
 #[cfg(not(feature = "disable-runtime-api"))]
 sp_api::impl_runtime_apis! {
 	impl sp_api::Core<Block> for Runtime {

runtime/rococo/src/lib.rs

@@ -81,7 +81,7 @@ pub use pallet_balances::Call as BalancesCall;
 use polkadot_parachain::primitives::Id as ParaId;
 
 use constants::{currency::*, fee::*, time::*};
-use frame_support::traits::InstanceFilter;
+use frame_support::traits::{InstanceFilter, OnRuntimeUpgrade};
 use xcm::latest::prelude::*;
 use xcm_builder::{
 	AccountId32Aliases, AllowKnownQueryResponses, AllowSubscriptionsFrom, BackingToPlurality,
@@ -158,11 +158,32 @@ pub type Executive = frame_executive::Executive<
 	frame_system::ChainContext<Runtime>,
 	Runtime,
 	AllPallets,
-	(),
+	(SessionHistoricalModulePrefixMigration,),
 >;
 /// The payload being signed in transactions.
 pub type SignedPayload = generic::SignedPayload<Call, SignedExtra>;
 
+/// Migrate session-historical from `Session` to the new pallet prefix `Historical`
+pub struct SessionHistoricalModulePrefixMigration;
+
+impl OnRuntimeUpgrade for SessionHistoricalModulePrefixMigration {
+	fn on_runtime_upgrade() -> frame_support::weights::Weight {
+		pallet_session::migrations::v1::migrate::<Runtime, Historical>()
+	}
+
+	#[cfg(feature = "try-runtime")]
+	fn pre_upgrade() -> Result<(), &'static str> {
+		pallet_session::migrations::v1::pre_migrate::<Runtime, Historical>();
+		Ok(())
+	}
+
+	#[cfg(feature = "try-runtime")]
+	fn post_upgrade() -> Result<(), &'static str> {
+		pallet_session::migrations::v1::post_migrate::<Runtime, Historical>();
+		Ok(())
+	}
+}
+
 impl_opaque_keys! {
 	pub struct SessionKeys {
 		pub grandpa: Grandpa,

runtime/westend/src/lib.rs

@@ -59,7 +59,9 @@ use authority_discovery_primitives::AuthorityId as AuthorityDiscoveryId;
 use beefy_primitives::crypto::AuthorityId as BeefyId;
 use frame_support::{
 	construct_runtime, parameter_types,
-	traits::{Contains, Everything, InstanceFilter, KeyOwnerProofSystem, Nothing},
+	traits::{
+		Contains, Everything, InstanceFilter, KeyOwnerProofSystem, Nothing, OnRuntimeUpgrade,
+	},
 	weights::Weight,
 	PalletId, RuntimeDebug,
 };
@@ -1141,11 +1143,32 @@ pub type Executive = frame_executive::Executive<
 	frame_system::ChainContext<Runtime>,
 	Runtime,
 	AllPallets,
-	(),
+	(SessionHistoricalPalletPrefixMigration,),
 >;
 /// The payload being signed in transactions.
 pub type SignedPayload = generic::SignedPayload<Call, SignedExtra>;
 
+/// Migrate session-historical from `Session` to the new pallet prefix `Historical`
+pub struct SessionHistoricalPalletPrefixMigration;
+
+impl OnRuntimeUpgrade for SessionHistoricalPalletPrefixMigration {
+	fn on_runtime_upgrade() -> frame_support::weights::Weight {
+		pallet_session::migrations::v1::migrate::<Runtime, Historical>()
+	}
+
+	#[cfg(feature = "try-runtime")]
+	fn pre_upgrade() -> Result<(), &'static str> {
+		pallet_session::migrations::v1::pre_migrate::<Runtime, Historical>();
+		Ok(())
+	}
+
+	#[cfg(feature = "try-runtime")]
+	fn post_upgrade() -> Result<(), &'static str> {
+		pallet_session::migrations::v1::post_migrate::<Runtime, Historical>();
+		Ok(())
+	}
+}
+
 #[cfg(not(feature = "disable-runtime-api"))]
 sp_api::impl_runtime_apis! {
 	impl sp_api::Core<Block> for Runtime {