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eebcd52ee6
* slashutil * builds * interop * viz Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
47 lines
1.2 KiB
Go
47 lines
1.2 KiB
Go
package db
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import (
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"os"
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"path"
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"strings"
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"github.com/pkg/errors"
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"github.com/prysmaticlabs/prysm/beacon-chain/db/kv"
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"github.com/prysmaticlabs/prysm/cmd"
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"github.com/prysmaticlabs/prysm/io/file"
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"github.com/prysmaticlabs/prysm/io/prompt"
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"github.com/urfave/cli/v2"
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)
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const dbExistsYesNoPrompt = "A database file already exists in the target directory. " +
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"Are you sure that you want to overwrite it? [y/n]"
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// Restore a beacon chain database.
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func Restore(cliCtx *cli.Context) error {
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sourceFile := cliCtx.String(cmd.RestoreSourceFileFlag.Name)
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targetDir := cliCtx.String(cmd.RestoreTargetDirFlag.Name)
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restoreDir := path.Join(targetDir, kv.BeaconNodeDbDirName)
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if file.FileExists(path.Join(restoreDir, kv.DatabaseFileName)) {
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resp, err := prompt.ValidatePrompt(
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os.Stdin, dbExistsYesNoPrompt, prompt.ValidateYesOrNo,
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)
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if err != nil {
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return errors.Wrap(err, "could not validate choice")
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}
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if strings.EqualFold(resp, "n") {
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log.Info("Restore aborted")
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return nil
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}
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}
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if err := file.MkdirAll(restoreDir); err != nil {
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return err
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}
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if err := file.CopyFile(sourceFile, path.Join(restoreDir, kv.DatabaseFileName)); err != nil {
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return err
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}
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log.Info("Restore completed successfully")
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return nil
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}
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