Allow derived keystore to be displayed on stdout.

Fixes #143

cmd/account/derive/input.go

@@ -22,6 +22,7 @@ import (
 
 type dataIn struct {
 	quiet bool
+	json  bool
 	// Derivation information.
 	mnemonic string
 	path     string
@@ -37,6 +38,9 @@ func input(_ context.Context) (*dataIn, error) {
 	// Quiet.
 	data.quiet = viper.GetBool("quiet")
 
+	// JSON.
+	data.json = viper.GetBool("json")
+
 	// Mnemonic.
 	if viper.GetString("mnemonic") == "" {
 		return nil, errors.New("mnemonic is required")

cmd/account/derive/output.go

@@ -31,6 +31,7 @@ import (
 )
 
 type dataOut struct {
+	json                      bool
 	showPrivateKey            bool
 	showWithdrawalCredentials bool
 	generateKeystore          bool
@@ -94,10 +95,14 @@ func outputKeystore(_ context.Context, data *dataOut) (string, error) {
 		return "", errors.Wrap(err, "failed to marshal keystore JSON")
 	}
 
-	keystoreFilename := fmt.Sprintf("keystore-%s-%d.json", strings.ReplaceAll(data.path, "/", "_"), time.Now().Unix())
+	if data.json {
+		fmt.Fprintf(os.Stdout, "%s\n", string(out))
+	} else {
+		keystoreFilename := fmt.Sprintf("keystore-%s-%d.json", strings.ReplaceAll(data.path, "/", "_"), time.Now().Unix())
 
-	if err := os.WriteFile(keystoreFilename, out, 0o600); err != nil {
-		return "", errors.Wrap(err, fmt.Sprintf("failed to write %s", keystoreFilename))
+		if err := os.WriteFile(keystoreFilename, out, 0o600); err != nil {
+			return "", errors.Wrap(err, fmt.Sprintf("failed to write %s", keystoreFilename))
+		}
 	}
 	return "", nil
 }

cmd/account/derive/process.go

@@ -38,6 +38,7 @@ func process(ctx context.Context, data *dataIn) (*dataOut, error) {
 	}
 
 	results := &dataOut{
+		json:                      data.json,
 		showPrivateKey:            data.showPrivateKey,
 		showWithdrawalCredentials: data.showWithdrawalCredentials,
 		generateKeystore:          data.generateKeystore,

cmd/accountderive.go

@@ -50,6 +50,7 @@ func init() {
 	accountDeriveCmd.Flags().Bool("show-private-key", false, "show private key for derived account")
 	accountDeriveCmd.Flags().Bool("show-withdrawal-credentials", false, "show withdrawal credentials for derived account")
 	accountDeriveCmd.Flags().Bool("generate-keystore", false, "generate a keystore for the derived account")
+	accountDeriveCmd.Flags().Bool("json", false, "display the JSON keystore for the derived account on stdout")
 }
 
 func accountDeriveBindings(cmd *cobra.Command) {
@@ -62,4 +63,7 @@ func accountDeriveBindings(cmd *cobra.Command) {
 	if err := viper.BindPFlag("generate-keystore", cmd.Flags().Lookup("generate-keystore")); err != nil {
 		panic(err)
 	}
+	if err := viper.BindPFlag("json", cmd.Flags().Lookup("json")); err != nil {
+		panic(err)
+	}
 }

cmd/version.go

@@ -24,7 +24,7 @@ import (
 
 // ReleaseVersion is the release version of the codebase.
 // Usually overridden by tag names when building binaries.
-var ReleaseVersion = "local build (latest release 1.35.4)"
+var ReleaseVersion = "local build (latest release 1.35.5)"
 
 // versionCmd represents the version command.
 var versionCmd = &cobra.Command{