Cosmos Dev Series: Cosmos-SDK-based Blockchain Upgrade - SimApp upgrade handler

upgrades.go

package app // upgrades.go

func (app *App) setupUpgradeHandlers(
    configurator module.Configurator,
    ...
) {
    app.UpgradeKeeper.SetUpgradeHandler(
        v2.UpgradeName,
        v2.CreateUpgradeHandler(app.mm, configurator, ...),
    )
    ...
    var storeUpgrades *storetypes.StoreUpgrades
    
    switch upgradeInfo.Name {
    case v2.UpgradeName:
        storeUpgrades = &storetypes.StoreUpgrades{
            Added: []string{newmoduletypes.StoreKey},
        }
    }
    
    if storeUpgrades != nil {
        app.SetStoreLoader(upgradetypes.UpgradeStoreLoader(upgradeInfo.Height, storeUpgrades))
    }
}