50 lines
1.6 KiB
Go
50 lines
1.6 KiB
Go
package server
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
"github.com/cosmos/cosmos-sdk/client/flags"
|
|
"github.com/cosmos/cosmos-sdk/store/rootmulti"
|
|
"github.com/spf13/cobra"
|
|
tmcmd "github.com/tendermint/tendermint/cmd/tendermint/commands"
|
|
)
|
|
|
|
// NewRollbackCmd creates a command to rollback tendermint and multistore state by one height.
|
|
func NewRollbackCmd(defaultNodeHome string) *cobra.Command {
|
|
cmd := &cobra.Command{
|
|
Use: "rollback",
|
|
Short: "rollback cosmos-sdk and tendermint state by one height",
|
|
Long: `
|
|
A state rollback is performed to recover from an incorrect application state transition,
|
|
when Tendermint has persisted an incorrect app hash and is thus unable to make
|
|
progress. Rollback overwrites a state at height n with the state at height n - 1.
|
|
The application also roll back to height n - 1. No blocks are removed, so upon
|
|
restarting Tendermint the transactions in block n will be re-executed against the
|
|
application.
|
|
`,
|
|
RunE: func(cmd *cobra.Command, args []string) error {
|
|
ctx := GetServerContextFromCmd(cmd)
|
|
cfg := ctx.Config
|
|
home := cfg.RootDir
|
|
db, err := openDB(home)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
// rollback tendermint state
|
|
height, hash, err := tmcmd.RollbackState(ctx.Config)
|
|
if err != nil {
|
|
return fmt.Errorf("failed to rollback tendermint state: %w", err)
|
|
}
|
|
// rollback the multistore
|
|
cms := rootmulti.NewStore(db)
|
|
cms.RollbackToVersion(height)
|
|
|
|
fmt.Printf("Rolled back state to height %d and hash %X", height, hash)
|
|
return nil
|
|
},
|
|
}
|
|
|
|
cmd.Flags().String(flags.FlagHome, defaultNodeHome, "The application home directory")
|
|
return cmd
|
|
}
|