3283617cfb
## Description ref: https://github.com/cosmos/cosmos-sdk/issues/11362 --- ### Author Checklist *All items are required. Please add a note to the item if the item is not applicable and please add links to any relevant follow up issues.* I have... - [x] included the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title - [ ] added `!` to the type prefix if API or client breaking change - [x] targeted the correct branch (see [PR Targeting](https://github.com/cosmos/cosmos-sdk/blob/main/CONTRIBUTING.md#pr-targeting)) - [x] provided a link to the relevant issue or specification - [ ] followed the guidelines for [building modules](https://github.com/cosmos/cosmos-sdk/blob/main/docs/building-modules) - [ ] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/main/CONTRIBUTING.md#testing) - [ ] added a changelog entry to `CHANGELOG.md` - [ ] included comments for [documenting Go code](https://blog.golang.org/godoc) - [ ] updated the relevant documentation or specification - [ ] reviewed "Files changed" and left comments if necessary - [ ] confirmed all CI checks have passed ### Reviewers Checklist *All items are required. Please add a note if the item is not applicable and please add your handle next to the items reviewed if you only reviewed selected items.* I have... - [ ] confirmed the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title - [ ] confirmed `!` in the type prefix if API or client breaking change - [ ] confirmed all author checklist items have been addressed - [ ] reviewed state machine logic - [ ] reviewed API design and naming - [ ] reviewed documentation is accurate - [ ] reviewed tests and test coverage - [ ] manually tested (if applicable)
50 lines
1.6 KiB
Go
50 lines
1.6 KiB
Go
package server
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import (
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"fmt"
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"github.com/cosmos/cosmos-sdk/client/flags"
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"github.com/cosmos/cosmos-sdk/store/rootmulti"
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"github.com/spf13/cobra"
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tmcmd "github.com/tendermint/tendermint/cmd/tendermint/commands"
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)
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// NewRollbackCmd creates a command to rollback tendermint and multistore state by one height.
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func NewRollbackCmd(defaultNodeHome string) *cobra.Command {
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cmd := &cobra.Command{
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Use: "rollback",
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Short: "rollback cosmos-sdk and tendermint state by one height",
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Long: `
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A state rollback is performed to recover from an incorrect application state transition,
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when Tendermint has persisted an incorrect app hash and is thus unable to make
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progress. Rollback overwrites a state at height n with the state at height n - 1.
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The application also rolls back to height n - 1. No blocks are removed, so upon
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restarting Tendermint the transactions in block n will be re-executed against the
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application.
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`,
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RunE: func(cmd *cobra.Command, args []string) error {
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ctx := GetServerContextFromCmd(cmd)
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cfg := ctx.Config
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home := cfg.RootDir
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db, err := openDB(home, GetAppDBBackend(ctx.Viper))
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if err != nil {
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return err
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}
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// rollback tendermint state
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height, hash, err := tmcmd.RollbackState(ctx.Config)
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if err != nil {
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return fmt.Errorf("failed to rollback tendermint state: %w", err)
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}
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// rollback the multistore
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cms := rootmulti.NewStore(db, ctx.Logger)
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cms.RollbackToVersion(height)
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fmt.Printf("Rolled back state to height %d and hash %X", height, hash)
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return nil
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},
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}
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cmd.Flags().String(flags.FlagHome, defaultNodeHome, "The application home directory")
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return cmd
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}
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