Added unsafe_reset_priv_validator

cmd/tendermint/main.go

@@ -40,6 +40,8 @@ Commands:
 		gen_tx()
 	case "probe_upnp":
 		probe_upnp()
+	case "unsafe_reset_priv_validator":
+		reset_priv_validator()
 	default:
 		fmt.Printf("Unknown command %v\n", args[0])
 	}

cmd/tendermint/reset_priv_validator.go

@@ -0,0 +1,29 @@
+package main
+
+import (
+	"os"
+
+	"github.com/tendermint/tendermint/config"
+	sm "github.com/tendermint/tendermint/state"
+)
+
+// NOTE: this is totally unsafe.
+// it's only suitable for testnets.
+func reset_priv_validator() {
+	// Get PrivValidator
+	var privValidator *sm.PrivValidator
+	privValidatorFile := config.App().GetString("PrivValidatorFile")
+	if _, err := os.Stat(privValidatorFile); err == nil {
+		privValidator = sm.LoadPrivValidator(privValidatorFile)
+		privValidator.LastHeight = 0
+		privValidator.LastRound = 0
+		privValidator.LastStep = 0
+		privValidator.Save()
+		log.Info("Reset PrivValidator", "file", privValidatorFile)
+	} else {
+		privValidator = sm.GenPrivValidator()
+		privValidator.SetFile(privValidatorFile)
+		privValidator.Save()
+		log.Info("Generated PrivValidator", "file", privValidatorFile)
+	}
+}