Add show_node_id command (closes #704)

examples/basecoin/cmd/basecoind/main.go

@@ -67,6 +67,7 @@ func main() {
 		server.InitCmd(defaultOptions, logger),
 		server.StartCmd(generateApp, logger),
 		server.UnsafeResetAllCmd(logger),
+		server.ShowNodeIdCmd(logger),
 		version.VersionCmd,
 	)
 

server/show_node_id.go

@@ -0,0 +1,38 @@
+package server
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+
+	tcmd "github.com/tendermint/tendermint/cmd/tendermint/commands"
+	"github.com/tendermint/tendermint/p2p"
+	"github.com/tendermint/tmlibs/log"
+)
+
+// ShowNodeIdCmd - ported from Tendermint, dump node ID to stdout
+func ShowNodeIdCmd(logger log.Logger) *cobra.Command {
+	cmd := showNodeId{logger}
+	return &cobra.Command{
+		Use:   "show_node_id",
+		Short: "Show this node's ID",
+		RunE:  cmd.run,
+	}
+}
+
+type showNodeId struct {
+	logger log.Logger
+}
+
+func (s showNodeId) run(cmd *cobra.Command, args []string) error {
+	cfg, err := tcmd.ParseConfig()
+	if err != nil {
+		return err
+	}
+	nodeKey, err := p2p.LoadOrGenNodeKey(cfg.NodeKeyFile())
+	if err != nil {
+		return err
+	}
+	fmt.Println(nodeKey.ID())
+	return nil
+}