79 lines
3.1 KiB
Go
79 lines
3.1 KiB
Go
package v043
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import (
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"github.com/cosmos/cosmos-sdk/store/prefix"
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sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/cosmos/cosmos-sdk/types/address"
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v040auth "github.com/cosmos/cosmos-sdk/x/auth/legacy/v040"
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v043distribution "github.com/cosmos/cosmos-sdk/x/distribution/legacy/v043"
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v040staking "github.com/cosmos/cosmos-sdk/x/staking/legacy/v040"
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"github.com/cosmos/cosmos-sdk/x/staking/types"
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)
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// migratePrefixAddressAddressAddress is a helper function that migrates all keys of format:
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// prefix_bytes | address_1_bytes | address_2_bytes | address_3_bytes
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// into format:
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// prefix_bytes | address_1_len (1 byte) | address_1_bytes | address_2_len (1 byte) | address_2_bytes | address_3_len (1 byte) | address_3_bytes
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func migratePrefixAddressAddressAddress(store sdk.KVStore, prefixBz []byte) {
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oldStore := prefix.NewStore(store, prefixBz)
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oldStoreIter := oldStore.Iterator(nil, nil)
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defer oldStoreIter.Close()
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for ; oldStoreIter.Valid(); oldStoreIter.Next() {
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addr1 := oldStoreIter.Key()[:v040auth.AddrLen]
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addr2 := oldStoreIter.Key()[v040auth.AddrLen : 2*v040auth.AddrLen]
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addr3 := oldStoreIter.Key()[2*v040auth.AddrLen:]
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newStoreKey := append(append(append(
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prefixBz,
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address.MustLengthPrefix(addr1)...), address.MustLengthPrefix(addr2)...), address.MustLengthPrefix(addr3)...,
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)
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// Set new key on store. Values don't change.
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store.Set(newStoreKey, oldStoreIter.Value())
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oldStore.Delete(oldStoreIter.Key())
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}
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}
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const powerBytesLen = 8
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func migrateValidatorsByPowerIndexKey(store sdk.KVStore) {
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oldStore := prefix.NewStore(store, v040staking.ValidatorsByPowerIndexKey)
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oldStoreIter := oldStore.Iterator(nil, nil)
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defer oldStoreIter.Close()
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for ; oldStoreIter.Valid(); oldStoreIter.Next() {
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powerBytes := oldStoreIter.Key()[:powerBytesLen]
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valAddr := oldStoreIter.Key()[powerBytesLen:]
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newStoreKey := append(append(types.ValidatorsByPowerIndexKey, powerBytes...), address.MustLengthPrefix(valAddr)...)
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// Set new key on store. Values don't change.
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store.Set(newStoreKey, oldStoreIter.Value())
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oldStore.Delete(oldStoreIter.Key())
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}
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}
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// MigrateStore performs in-place store migrations from v0.40 to v0.43. The
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// migration includes:
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//
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// - Setting the Power Reduction param in the paramstore
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func MigrateStore(ctx sdk.Context, storeKey sdk.StoreKey) error {
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store := ctx.KVStore(storeKey)
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v043distribution.MigratePrefixAddress(store, v040staking.LastValidatorPowerKey)
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v043distribution.MigratePrefixAddress(store, v040staking.ValidatorsKey)
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v043distribution.MigratePrefixAddress(store, v040staking.ValidatorsByConsAddrKey)
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migrateValidatorsByPowerIndexKey(store)
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v043distribution.MigratePrefixAddressAddress(store, v040staking.DelegationKey)
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v043distribution.MigratePrefixAddressAddress(store, v040staking.UnbondingDelegationKey)
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v043distribution.MigratePrefixAddressAddress(store, v040staking.UnbondingDelegationByValIndexKey)
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migratePrefixAddressAddressAddress(store, v040staking.RedelegationKey)
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migratePrefixAddressAddressAddress(store, v040staking.RedelegationByValSrcIndexKey)
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migratePrefixAddressAddressAddress(store, v040staking.RedelegationByValDstIndexKey)
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return nil
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}
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