50 lines
1.3 KiB
Go
50 lines
1.3 KiB
Go
package keeper
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import (
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"context"
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"cosmossdk.io/core/address"
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v4 "cosmossdk.io/x/slashing/migrations/v4"
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"github.com/cosmos/cosmos-sdk/runtime"
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)
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// Migrator is a struct for handling in-place store migrations.
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type Migrator struct {
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keeper Keeper
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valCodec address.ValidatorAddressCodec
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}
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// NewMigrator returns a new Migrator.
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func NewMigrator(keeper Keeper, valCodec address.ValidatorAddressCodec) Migrator {
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return Migrator{
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keeper: keeper,
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valCodec: valCodec,
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}
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}
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// Migrate1to2 migrates from version 1 to 2.
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func (m Migrator) Migrate1to2(ctx context.Context) error {
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return nil
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}
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// Migrate2to3 migrates the x/slashing module state from the consensus
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// version 2 to version 3. Specifically, it takes the parameters that are currently stored
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// and managed by the x/params modules and stores them directly into the x/slashing
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// module state.
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func (m Migrator) Migrate2to3(ctx context.Context) error {
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return nil
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}
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// Migrate3to4 migrates the x/slashing module state from the consensus
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// version 3 to version 4. Specifically, it migrates the validator missed block
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// bitmap.
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func (m Migrator) Migrate3to4(ctx context.Context) error {
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store := runtime.KVStoreAdapter(m.keeper.KVStoreService.OpenKVStore(ctx))
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params, err := m.keeper.Params.Get(ctx)
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if err != nil {
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return err
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}
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return v4.Migrate(ctx, m.keeper.cdc, store, params, m.valCodec)
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}
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