feat: add local snapshots management commands

- `appd snapshots list`
  list local snapshots
- `appd snapshots restore`
  restore from a local snapshot

CHANGELOG.md

@@ -107,6 +107,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * (x/bank) [#15764](https://github.com/cosmos/cosmos-sdk/pull/15764) Speedup x/bank InitGenesis
 * (x/auth) [#15867](https://github.com/cosmos/cosmos-sdk/pull/15867) Support better logging for signature verification failure.
 * (types/query) [#16041](https://github.com/cosmos/cosmos-sdk/pull/16041) change pagination max limit to a variable in order to be modifed by application devs
+* (store) [#]() Add local snapshots management commands.
 
 ### State Machine Breaking
 

client/snapshot/cmd.go

@@ -0,0 +1,20 @@
+package snapshot
+
+import (
+	servertypes "github.com/cosmos/cosmos-sdk/server/types"
+	"github.com/spf13/cobra"
+)
+
+// Cmd returns the snapshots group command
+func Cmd(appCreator servertypes.AppCreator) *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "snapshots",
+		Short: "Manage local snapshots",
+		Long:  "Manage local snapshots",
+	}
+	cmd.AddCommand(
+		ListSnapshotsCmd(appCreator),
+		RestoreSnapshotCmd(appCreator),
+	)
+	return cmd
+}

client/snapshot/list.go

@@ -0,0 +1,34 @@
+package snapshot
+
+import (
+	"fmt"
+
+	"github.com/cosmos/cosmos-sdk/server"
+	servertypes "github.com/cosmos/cosmos-sdk/server/types"
+	"github.com/spf13/cobra"
+)
+
+// ListSnapshotsCmd returns the command to list local snapshots
+func ListSnapshotsCmd(appCreator servertypes.AppCreator) *cobra.Command {
+	return &cobra.Command{
+		Use:   "list",
+		Short: "List snapshots",
+		Long:  "List snapshots",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			ctx := server.GetServerContextFromCmd(cmd)
+			snapshotStore, err := server.GetSnapshotStore(ctx.Viper)
+			if err != nil {
+				return err
+			}
+			snapshots, err := snapshotStore.List()
+			if err != nil {
+				return fmt.Errorf("failed to list snapshots: %w", err)
+			}
+			for _, snapshot := range snapshots {
+				fmt.Println("height:", snapshot.Height, "format:", snapshot.Format, "chunks:", snapshot.Chunks)
+			}
+
+			return nil
+		},
+	}
+}

client/snapshot/restore.go

@@ -0,0 +1,51 @@
+package snapshot
+
+import (
+	"path/filepath"
+	"strconv"
+
+	"cosmossdk.io/log"
+	"github.com/spf13/cobra"
+
+	dbm "github.com/cosmos/cosmos-db"
+	"github.com/cosmos/cosmos-sdk/server"
+	servertypes "github.com/cosmos/cosmos-sdk/server/types"
+)
+
+// RestoreSnapshotCmd returns a command to restore a snapshot
+func RestoreSnapshotCmd(appCreator servertypes.AppCreator) *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "restore <height> <format>",
+		Short: "Restore app state from local snapshot",
+		Long:  "Restore app state from local snapshot",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			ctx := server.GetServerContextFromCmd(cmd)
+
+			height, err := strconv.ParseUint(args[0], 10, 64)
+			if err != nil {
+				return err
+			}
+			format, err := strconv.ParseUint(args[1], 10, 32)
+			if err != nil {
+				return err
+			}
+
+			home := ctx.Config.RootDir
+			db, err := openDB(home, server.GetAppDBBackend(ctx.Viper))
+			if err != nil {
+				return err
+			}
+			logger := log.NewLogger(cmd.OutOrStdout())
+			app := appCreator(logger, db, nil, ctx.Viper)
+
+			sm := app.SnapshotManager()
+			return sm.RestoreLocalSnapshot(height, uint32(format))
+		},
+	}
+	return cmd
+}
+
+func openDB(rootDir string, backendType dbm.BackendType) (dbm.DB, error) {
+	dataDir := filepath.Join(rootDir, "data")
+	return dbm.NewDB("application", backendType, dataDir)
+}

go.mod

@@ -130,6 +130,7 @@ require (
 	github.com/mitchellh/go-testing-interface v1.14.1 // indirect
 	github.com/mitchellh/mapstructure v1.5.0 // indirect
 	github.com/mtibben/percent v0.2.1 // indirect
+	github.com/nxadm/tail v1.4.8 // indirect
 	github.com/oklog/run v1.1.0 // indirect
 	github.com/pelletier/go-toml/v2 v2.0.7 // indirect
 	github.com/petermattis/goid v0.0.0-20230317030725-371a4b8eda08 // indirect

go.sum

@@ -636,8 +636,9 @@ github.com/nats-io/nkeys v0.1.0/go.mod h1:xpnFELMwJABBLVhffcfd1MZx6VsNRFpEugbxzi
 github.com/nats-io/nkeys v0.1.3/go.mod h1:xpnFELMwJABBLVhffcfd1MZx6VsNRFpEugbxziKVo7w=
 github.com/nats-io/nuid v1.0.1/go.mod h1:19wcPz3Ph3q0Jbyiqsd0kePYG7A95tJPxeL+1OSON2c=
 github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
-github.com/nxadm/tail v1.4.4 h1:DQuhQpB1tVlglWS2hLQ5OV6B5r8aGxSrPc5Qo6uTN78=
 github.com/nxadm/tail v1.4.4/go.mod h1:kenIhsEOeOJmVchQTgglprH7qJGnHDVpk1VPCcaMI8A=
+github.com/nxadm/tail v1.4.8 h1:nPr65rt6Y5JFSKQO7qToXr7pePgD6Gwiw05lkbyAQTE=
+github.com/nxadm/tail v1.4.8/go.mod h1:+ncqLTQzXmGhMZNUePPaPqPvBxHAIsmXswZKocGu+AU=
 github.com/oklog/oklog v0.3.2/go.mod h1:FCV+B7mhrz4o+ueLpx+KqkyXRGMWOYEvfiXtdGtbWGs=
 github.com/oklog/run v1.0.0/go.mod h1:dlhp/R75TPv97u0XWUtDeV/lRKWPKSdTuV0TZvrmrQA=
 github.com/oklog/run v1.1.0 h1:GEenZ1cK0+q0+wsJew9qUg/DyD8k3JzYsZAi5gYi2mA=

server/types/app.go

@@ -5,6 +5,7 @@ import (
 	"io"
 
 	"cosmossdk.io/log"
+	"cosmossdk.io/store/snapshots"
 	storetypes "cosmossdk.io/store/types"
 	abci "github.com/cometbft/cometbft/abci/types"
 	cmtproto "github.com/cometbft/cometbft/proto/tendermint/types"
@@ -54,6 +55,9 @@ type (
 
 		// CommitMultiStore return the multistore instance
 		CommitMultiStore() storetypes.CommitMultiStore
+
+		// Return the snapshot manager
+		SnapshotManager() *snapshots.Manager
 	}
 
 	// AppCreator is a function that allows us to lazily initialize an

server/util.go

@@ -468,16 +468,7 @@ func DefaultBaseappOptions(appOpts types.AppOptions) []func(*baseapp.BaseApp) {
 		chainID = appGenesis.ChainID
 	}
 
-	snapshotDir := filepath.Join(homeDir, "data", "snapshots")
-	if err = os.MkdirAll(snapshotDir, os.ModePerm); err != nil {
-		panic(fmt.Errorf("failed to create snapshots directory: %w", err))
-	}
-
-	snapshotDB, err := dbm.NewDB("metadata", GetAppDBBackend(appOpts), snapshotDir)
-	if err != nil {
-		panic(err)
-	}
-	snapshotStore, err := snapshots.NewStore(snapshotDB, snapshotDir)
+	snapshotStore, err := GetSnapshotStore(appOpts)
 	if err != nil {
 		panic(err)
 	}
@@ -508,3 +499,22 @@ func DefaultBaseappOptions(appOpts types.AppOptions) []func(*baseapp.BaseApp) {
 		baseapp.SetChainID(chainID),
 	}
 }
+
+func GetSnapshotStore(appOpts types.AppOptions) (*snapshots.Store, error) {
+	homeDir := cast.ToString(appOpts.Get(flags.FlagHome))
+	snapshotDir := filepath.Join(homeDir, "data", "snapshots")
+	if err := os.MkdirAll(snapshotDir, os.ModePerm); err != nil {
+		return nil, fmt.Errorf("failed to create snapshots directory: %w", err)
+	}
+
+	snapshotDB, err := dbm.NewDB("metadata", GetAppDBBackend(appOpts), snapshotDir)
+	if err != nil {
+		return nil, err
+	}
+	snapshotStore, err := snapshots.NewStore(snapshotDB, snapshotDir)
+	if err != nil {
+		return nil, err
+	}
+
+	return snapshotStore, nil
+}

simapp/simd/cmd/root.go

@@ -24,6 +24,7 @@ import (
 	"github.com/cosmos/cosmos-sdk/client/keys"
 	"github.com/cosmos/cosmos-sdk/client/pruning"
 	"github.com/cosmos/cosmos-sdk/client/rpc"
+	"github.com/cosmos/cosmos-sdk/client/snapshot"
 	"github.com/cosmos/cosmos-sdk/codec"
 	"github.com/cosmos/cosmos-sdk/server"
 	serverconfig "github.com/cosmos/cosmos-sdk/server/config"
@@ -191,6 +192,7 @@ func initRootCmd(rootCmd *cobra.Command, encodingConfig params.EncodingConfig, b
 		debug.Cmd(),
 		confixcmd.ConfigCommand(),
 		pruning.Cmd(newApp),
+		snapshot.Cmd(newApp),
 	)
 
 	server.AddCommands(rootCmd, simapp.DefaultNodeHome, newApp, appExport, addModuleInitFlags)

simapp/simd/cmd/root_v2.go

@@ -25,6 +25,7 @@ import (
 	"github.com/cosmos/cosmos-sdk/client/keys"
 	"github.com/cosmos/cosmos-sdk/client/pruning"
 	"github.com/cosmos/cosmos-sdk/client/rpc"
+	"github.com/cosmos/cosmos-sdk/client/snapshot"
 	"github.com/cosmos/cosmos-sdk/codec"
 	codectypes "github.com/cosmos/cosmos-sdk/codec/types"
 	"github.com/cosmos/cosmos-sdk/server"
@@ -207,6 +208,7 @@ func initRootCmd(
 		debug.Cmd(),
 		confixcmd.ConfigCommand(),
 		pruning.Cmd(newApp),
+		snapshot.Cmd(newApp),
 	)
 
 	server.AddCommands(rootCmd, simapp.DefaultNodeHome, newApp, appExport, addModuleInitFlags)

store/snapshots/manager.go

@@ -418,6 +418,15 @@ func (m *Manager) RestoreChunk(chunk []byte) (bool, error) {
 	return false, nil
 }
 
+// RestoreLocalSnapshot restores app state from a local snapshot.
+func (m *Manager) RestoreLocalSnapshot(height uint64, format uint32) error {
+	snapshot, ch, err := m.store.Load(height, format)
+	if err != nil {
+		return err
+	}
+	return m.restoreSnapshot(*snapshot, ch)
+}
+
 // sortedExtensionNames sort extension names for deterministic iteration.
 func (m *Manager) sortedExtensionNames() []string {
 	names := make([]string, 0, len(m.extensions))