prysm-pulse/validator/slashing-protection/cli_import.go
Raul Jordan 136b157d00
Better Slashing Protection Import/Export User Experience (#9355)
* failure mode if command goes wrong

* improve export

* fix struct orderw

Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
2021-08-11 17:24:24 +00:00

82 lines
2.9 KiB
Go

package slashingprotection
import (
"bytes"
"fmt"
"github.com/pkg/errors"
"github.com/prysmaticlabs/prysm/cmd/validator/flags"
"github.com/prysmaticlabs/prysm/shared/cmd"
"github.com/prysmaticlabs/prysm/shared/fileutil"
"github.com/prysmaticlabs/prysm/validator/accounts/prompt"
"github.com/prysmaticlabs/prysm/validator/db/kv"
slashingProtectionFormat "github.com/prysmaticlabs/prysm/validator/slashing-protection/local/standard-protection-format"
"github.com/urfave/cli/v2"
)
// ImportSlashingProtectionCLI reads an input slashing protection EIP-3076
// standard JSON file and attempts to insert its data into our validator DB.
//
// Steps:
// 1. Parse a path to the validator's datadir from the CLI context.
// 2. Open the validator database.
// 3. Read the JSON file from user input.
// 4. Call the function which actually imports the data from
// from the standard slashing protection JSON file into our database.
func ImportSlashingProtectionCLI(cliCtx *cli.Context) error {
var err error
dataDir := cliCtx.String(cmd.DataDirFlag.Name)
if !cliCtx.IsSet(cmd.DataDirFlag.Name) {
dataDir, err = prompt.InputDirectory(cliCtx, prompt.DataDirDirPromptText, cmd.DataDirFlag)
if err != nil {
return errors.Wrapf(err, "could not read directory value from input")
}
}
// ensure that the validator.db is found under the specified dir or its subdirectories
found, _, err := fileutil.RecursiveFileFind(kv.ProtectionDbFileName, dataDir)
if err != nil {
return errors.Wrapf(err, "error finding validator database at path %s", dataDir)
}
if !found {
log.Infof(
"Did not find existing validator.db inside of %s, creating a new one",
dataDir,
)
} else {
log.Infof("Found existing validator.db inside of %s", dataDir)
}
valDB, err := kv.NewKVStore(cliCtx.Context, dataDir, &kv.Config{})
if err != nil {
return errors.Wrapf(err, "could not access validator database at path: %s", dataDir)
}
defer func() {
if err := valDB.Close(); err != nil {
log.WithError(err).Errorf("Could not close validator DB")
}
}()
protectionFilePath, err := prompt.InputDirectory(cliCtx, prompt.SlashingProtectionJSONPromptText, flags.SlashingProtectionJSONFileFlag)
if err != nil {
return errors.Wrap(err, "could not get slashing protection json file")
}
if protectionFilePath == "" {
return fmt.Errorf(
"no path to a slashing_protection.json file specified, please retry or "+
"you can also specify it with the %s flag",
flags.SlashingProtectionJSONFileFlag.Name,
)
}
enc, err := fileutil.ReadFileAsBytes(protectionFilePath)
if err != nil {
return err
}
log.Infof("Starting import of slashing protection file %s", protectionFilePath)
buf := bytes.NewBuffer(enc)
if err := slashingProtectionFormat.ImportStandardProtectionJSON(
cliCtx.Context, valDB, buf,
); err != nil {
return err
}
log.Infof("Slashing protection JSON successfully imported into %s", dataDir)
return nil
}