cmd/tools/convert-node-id: tool for node id conversions

Change-Id: I3d18a051131135dfdbfd9c54002efbc853e4004d

cmd/tools/convert-node-id/main.go

@@ -0,0 +1,53 @@
+// Copyright (C) 2022 Storj, Inc.
+// See LICENSE for copying information.
+
+package main
+
+import (
+	"encoding/hex"
+	"fmt"
+	"os"
+
+	"storj.io/common/storj"
+)
+
+func usage() {
+	fmt.Fprintf(os.Stderr, "usage: %s <nodeid>\n", os.Args[0])
+	os.Exit(1)
+}
+
+func output(id storj.NodeID) {
+	fmt.Printf("base58 id: %s\n", id.String())
+	fmt.Printf("hex id: %x\n", id.Bytes())
+	fmt.Printf("version: %d\n", id.Version().Number)
+	diff, err := id.Difficulty()
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "error getting difficulty: %v\n", err)
+	} else {
+		fmt.Printf("difficulty: %d\n", diff)
+	}
+}
+
+func main() {
+	if len(os.Args) != 2 {
+		usage()
+	}
+
+	id, err := storj.NodeIDFromString(os.Args[1])
+	if err == nil {
+		output(id)
+		return
+	}
+
+	idBytes, err := hex.DecodeString(os.Args[1])
+	if err == nil {
+		id, err := storj.NodeIDFromBytes(idBytes)
+		if err == nil {
+			output(id)
+			return
+		}
+	}
+
+	fmt.Fprintf(os.Stderr, "unknown argument: %q", os.Args[1])
+	usage()
+}