b0e82f9640
* mainly sdk.int to cosmossdk.io/math * staking keys * fumpt * var-naming linter errors and a fumpt * Update CHANGELOG.md * Update .golangci.yml * Update CHANGELOG.md * Update test_helpers.go * Update test_helpers.go * fumpt and lint * this lints the db module, and makes it easier to use. It adds breaking name changes * DBConnection -> Connection * previous commit contained a merge error * Update test_helpers.go * Update test_helpers.go * db renamings * merge master * changelog * DBWriter -> Writer * consistent multistore reciever * standard recievers for multistore v2alpha1 * general cleanup of linting issues * more linter fixes * remove prealloc linter * nolint the secp256k1 import * nolint the secp256k1 package * completenolint resulting in a diff that has only nolints
69 lines
2.0 KiB
Go
69 lines
2.0 KiB
Go
package multi
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import (
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dbm "github.com/cosmos/cosmos-sdk/db"
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"github.com/cosmos/cosmos-sdk/store/iavl"
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"github.com/cosmos/cosmos-sdk/store/mem"
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v1Store "github.com/cosmos/cosmos-sdk/store/rootmulti"
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"github.com/cosmos/cosmos-sdk/store/transient"
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"github.com/cosmos/cosmos-sdk/store/types"
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sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
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)
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// MigrateFromV1 will migrate the state from iavl to smt
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func MigrateFromV1(rootMultiStore *v1Store.Store, store2db dbm.Connection, storeConfig StoreConfig) (*Store, error) {
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type namedStore struct {
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*iavl.Store
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name string
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}
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var stores []namedStore
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for _, storeKey := range rootMultiStore.StoreKeysByName() {
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keyName := storeKey.Name()
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switch store := rootMultiStore.GetStoreByName(keyName).(type) {
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case *iavl.Store:
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err := storeConfig.RegisterSubstore(keyName, types.StoreTypePersistent)
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if err != nil {
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return nil, err
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}
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stores = append(stores, namedStore{name: keyName, Store: store})
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case *transient.Store, *mem.Store:
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continue
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default:
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return nil, sdkerrors.Wrapf(sdkerrors.ErrLogic, "don't know how to migrate store %q of type %T", keyName, store)
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}
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}
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// creating the new store of smt tree
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rootStore, err := NewStore(store2db, storeConfig)
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if err != nil {
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return nil, err
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}
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// if version is 0 there is no state data to commit
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if rootMultiStore.LastCommitID().Version == 0 {
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return rootStore, nil
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}
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// iterate through the rootmulti stores and save the key/values into smt tree
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for _, store := range stores {
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subStore, err := rootStore.getSubstore(store.name)
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if err != nil {
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return nil, err
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}
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// iterate all iavl tree node key/values
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iterator := store.Iterator(nil, nil)
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for ; iterator.Valid(); iterator.Next() {
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// set the iavl key,values into smt node
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subStore.Set(iterator.Key(), iterator.Value())
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}
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}
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// commit the all key/values from iavl to smt tree (SMT Store)
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_, err = rootStore.commit(uint64(rootMultiStore.LastCommitID().Version))
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if err != nil {
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return nil, err
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}
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return rootStore, nil
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}
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