Merge pull request #17 from hyle-team/feature/migrations-staking

Feature/migrations staking

x/staking/keeper/migrations.go

@@ -5,6 +5,7 @@ import (
 	v043 "github.com/cosmos/cosmos-sdk/x/staking/migrations/v043"
 	v046 "github.com/cosmos/cosmos-sdk/x/staking/migrations/v046"
 	v04626 "github.com/cosmos/cosmos-sdk/x/staking/migrations/v046_26"
+	v04628 "github.com/cosmos/cosmos-sdk/x/staking/migrations/v046_28"
 )
 
 // Migrator is a struct for handling in-place store migrations.
@@ -33,3 +34,8 @@ func (m Migrator) Migrate2to3(ctx sdk.Context) error {
 func (m Migrator) Migrate3to4(ctx sdk.Context) error {
 	return v04626.MigrateStore(ctx, m.keeper.storeKey, m.keeper.cdc)
 }
+
+// Migrate4to5 migrates x/staking state from consensus version 4 to 5.
+func (m Migrator) Migrate4to5(ctx sdk.Context) error {
+	return v04628.MigrateStore(ctx, m.keeper.storeKey, m.keeper.cdc, m.keeper.paramstore)
+}

x/staking/migrations/v046_28/store.go

@@ -0,0 +1,28 @@
+package v046_28
+
+import (
+	"github.com/cosmos/cosmos-sdk/codec"
+	storetypes "github.com/cosmos/cosmos-sdk/store/types"
+	sdk "github.com/cosmos/cosmos-sdk/types"
+	paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
+	"github.com/cosmos/cosmos-sdk/x/staking/types"
+)
+
+// MigrateStore performs in-place store migrations from v0.43/v0.44/v0.45 to v0.46.
+// The migration includes:
+//
+// - Setting the MinDelegationAmount param in the paramstore
+func MigrateStore(ctx sdk.Context, _ storetypes.StoreKey, _ codec.BinaryCodec, paramstore paramtypes.Subspace) error {
+	migrateParamsStore(ctx, paramstore)
+
+	return nil
+}
+
+func migrateParamsStore(ctx sdk.Context, paramstore paramtypes.Subspace) {
+	if paramstore.HasKeyTable() {
+		paramstore.Set(ctx, types.KeyMinCommissionRate, types.DefaultMinCommissionRate)
+		return
+	}
+	paramstore.WithKeyTable(types.ParamKeyTable())
+	paramstore.Set(ctx, types.KeyMinCommissionRate, types.DefaultMinCommissionRate)
+}

x/staking/module.go

@@ -23,7 +23,7 @@ import (
 )
 
 const (
-	consensusVersion uint64 = 4
+	consensusVersion uint64 = 5
 )
 
 var (
@@ -143,7 +143,9 @@ func (am AppModule) RegisterServices(cfg module.Configurator) {
 	if err := cfg.RegisterMigration(types.ModuleName, 3, m.Migrate3to4); err != nil {
 		panic(err)
 	}
-
+	if err := cfg.RegisterMigration(types.ModuleName, 4, m.Migrate4to5); err != nil {
+		panic(err)
+	}
 }
 
 // InitGenesis performs genesis initialization for the staking module. It returns