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upgrades.go
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upgrades.go
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// Copyright 2022 Serv Foundation
// This file is part of the Serv Network packages.
//
// Serv is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The Serv packages are distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the Serv packages. If not, see https://github.com/twobitedd/evmos/blob/main/LICENSE
package v10
import (
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/types/module"
stakingkeeper "github.com/cosmos/cosmos-sdk/x/staking/keeper"
stakingtypes "github.com/cosmos/cosmos-sdk/x/staking/types"
upgradetypes "github.com/cosmos/cosmos-sdk/x/upgrade/types"
)
// CreateUpgradeHandler creates an SDK upgrade handler for v10
func CreateUpgradeHandler(
mm *module.Manager,
configurator module.Configurator,
stakingKeeper stakingkeeper.Keeper,
) upgradetypes.UpgradeHandler {
return func(ctx sdk.Context, _ upgradetypes.Plan, vm module.VersionMap) (module.VersionMap, error) {
logger := ctx.Logger().With("upgrade", UpgradeName)
setMinCommissionRate(ctx, stakingKeeper)
// Leave modules are as-is to avoid running InitGenesis.
logger.Debug("running module migrations ...")
return mm.RunMigrations(ctx, configurator, vm)
}
}
// setMinCommissionRate sets the minimum commission rate for validators
// to 5%.
func setMinCommissionRate(ctx sdk.Context, sk stakingkeeper.Keeper) {
stakingParams := stakingtypes.Params{
UnbondingTime: sk.UnbondingTime(ctx),
MaxValidators: sk.MaxValidators(ctx),
MaxEntries: sk.MaxEntries(ctx),
HistoricalEntries: sk.HistoricalEntries(ctx),
BondDenom: sk.BondDenom(ctx),
MinCommissionRate: sdk.NewDecWithPrec(5, 2), // 5%
}
sk.SetParams(ctx, stakingParams)
}