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app/upgrades/types.go

@@ -0,0 +1,44 @@
+package upgrades
+
+import (
+	"context"
+
+	capabilitykeeper "github.com/cosmos/ibc-go/modules/capability/keeper"
+	ibckeeper "github.com/cosmos/ibc-go/v8/modules/core/keeper"
+
+	storetypes "cosmossdk.io/store/types"
+	upgradetypes "cosmossdk.io/x/upgrade/types"
+
+	"github.com/cosmos/cosmos-sdk/codec"
+	"github.com/cosmos/cosmos-sdk/types/module"
+	authkeeper "github.com/cosmos/cosmos-sdk/x/auth/keeper"
+	consensusparamkeeper "github.com/cosmos/cosmos-sdk/x/consensus/keeper"
+	paramskeeper "github.com/cosmos/cosmos-sdk/x/params/keeper"
+)
+
+type AppKeepers struct {
+	AccountKeeper         *authkeeper.AccountKeeper
+	ParamsKeeper          *paramskeeper.Keeper
+	ConsensusParamsKeeper *consensusparamkeeper.Keeper
+	Codec                 codec.Codec
+	GetStoreKey           func(storeKey string) *storetypes.KVStoreKey
+	CapabilityKeeper      *capabilitykeeper.Keeper
+	IBCKeeper             *ibckeeper.Keeper
+}
+type ModuleManager interface {
+	RunMigrations(ctx context.Context, cfg module.Configurator, fromVM module.VersionMap) (module.VersionMap, error)
+	GetVersionMap() module.VersionMap
+}
+
+// Upgrade defines a struct containing necessary fields that a SoftwareUpgradeProposal
+// must have written, in order for the state migration to go smoothly.
+// An upgrade must implement this struct, and then set it in the app.go.
+// The app.go will then define the handler.
+type Upgrade struct {
+	// Upgrade version name, for the upgrade handler, e.g. `v7`
+	UpgradeName string
+
+	// CreateUpgradeHandler defines the function that creates an upgrade handler
+	CreateUpgradeHandler func(ModuleManager, module.Configurator, *AppKeepers) upgradetypes.UpgradeHandler
+	StoreUpgrades        storetypes.StoreUpgrades
+}