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migrate.go
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migrate.go
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package v5
import (
"github.com/Entangle-Protocol/entangle-blockchain/x/evm/types"
"github.com/cosmos/cosmos-sdk/codec"
storetypes "github.com/cosmos/cosmos-sdk/store/types"
sdk "github.com/cosmos/cosmos-sdk/types"
v5types "github.com/Entangle-Protocol/entangle-blockchain/x/evm/migrations/v5/types"
)
// MigrateStore migrates the x/evm module state from the consensus version 4 to
// version 5. Specifically, it takes the parameters that are currently stored
// in separate keys and stores them directly into the x/evm module state using
// a single params key.
func MigrateStore(
ctx sdk.Context,
storeKey storetypes.StoreKey,
cdc codec.BinaryCodec,
) error {
var (
extraEIPs v5types.V5ExtraEIPs
chainConfig types.ChainConfig
params types.Params
)
store := ctx.KVStore(storeKey)
denom := string(store.Get(types.ParamStoreKeyEVMDenom))
extraEIPsBz := store.Get(types.ParamStoreKeyExtraEIPs)
cdc.MustUnmarshal(extraEIPsBz, &extraEIPs)
// revert ExtraEIP change for Evmos testnet
if ctx.ChainID() == "evmos_9000-4" {
extraEIPs.EIPs = []int64{}
}
chainCfgBz := store.Get(types.ParamStoreKeyChainConfig)
cdc.MustUnmarshal(chainCfgBz, &chainConfig)
params.EvmDenom = denom
params.ExtraEIPs = extraEIPs.EIPs
params.ChainConfig = chainConfig
params.EnableCreate = store.Has(types.ParamStoreKeyEnableCreate)
params.EnableCall = store.Has(types.ParamStoreKeyEnableCall)
params.AllowUnprotectedTxs = store.Has(types.ParamStoreKeyAllowUnprotectedTxs)
store.Delete(types.ParamStoreKeyChainConfig)
store.Delete(types.ParamStoreKeyExtraEIPs)
store.Delete(types.ParamStoreKeyEVMDenom)
store.Delete(types.ParamStoreKeyEnableCreate)
store.Delete(types.ParamStoreKeyEnableCall)
store.Delete(types.ParamStoreKeyAllowUnprotectedTxs)
if err := params.Validate(); err != nil {
return err
}
bz := cdc.MustMarshal(¶ms)
store.Set(types.KeyPrefixParams, bz)
return nil
}