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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,65 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "path/filepath" | ||
| "strconv" | ||
|
|
||
| cmtcmd "github.com/cometbft/cometbft/cmd/cometbft/commands" | ||
| "github.com/spf13/cobra" | ||
|
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| dbm "github.com/cosmos/cosmos-db" | ||
| "github.com/cosmos/cosmos-sdk/server" | ||
| "github.com/cosmos/cosmos-sdk/server/types" | ||
| ) | ||
|
|
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| // NewMultipleRollbackCmd creates a command to rollback CometBFT and multistore state by one height. | ||
| func NewMultipleRollbackCmd(appCreator types.AppCreator) *cobra.Command { | ||
| cmd := &cobra.Command{ | ||
| Use: "mrollback [height]", | ||
| Short: "rollback Cosmos SDK and CometBFT state to the given height", | ||
| Long: ` | ||
| A state rollback is performed to recover from an incorrect application state transition, | ||
| when CometBFT has persisted an incorrect app hash and is thus unable to make | ||
| progress. Rollback overwrites a state with the state at the given height. All | ||
| blocks after the given height are removed from the blockchain. | ||
| `, | ||
| Args: cobra.ExactArgs(1), | ||
| RunE: func(cmd *cobra.Command, args []string) error { | ||
| ctx := server.GetServerContextFromCmd(cmd) | ||
|
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| height, err := strconv.ParseInt(args[0], 10, 64) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| if height <= 0 { | ||
| return fmt.Errorf("height must be greater than 0") | ||
| } | ||
|
|
||
| dataDir := filepath.Join(ctx.Config.RootDir, "data") | ||
| db, err := dbm.NewDB("application", server.GetAppDBBackend(ctx.Viper), dataDir) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| app := appCreator(ctx.Logger, db, nil, ctx.Viper) | ||
| if curHeight := app.CommitMultiStore().LatestVersion(); height >= curHeight { | ||
| return fmt.Errorf("height must be less than the current height %d", curHeight) | ||
| } | ||
|
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| // rollback CometBFT state | ||
| height, hash, err := cmtcmd.RollbackMultipleState(ctx.Config, height) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to rollback CometBFT state: %w", err) | ||
| } | ||
| // rollback the multistore | ||
|
|
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| if err := app.CommitMultiStore().RollbackToVersion(height); err != nil { | ||
| return fmt.Errorf("failed to rollback to version: %w", err) | ||
| } | ||
|
|
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| fmt.Printf("Rolled back state to height %d and hash %X\n", height, hash) | ||
| return nil | ||
| }, | ||
| } | ||
| return cmd | ||
| } |
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