Added show-sequencer command to print the sequencer pubkey. (#178)

cmd/dymint/commands/show_sequencer.go

@@ -0,0 +1,41 @@
+package commands
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+	tmjson "github.com/tendermint/tendermint/libs/json"
+	tmos "github.com/tendermint/tendermint/libs/os"
+	"github.com/tendermint/tendermint/privval"
+)
+
+// ShowSequencer adds capabilities for showing the validator info.
+var ShowSequencer = &cobra.Command{
+	Use:     "show-sequencer",
+	Aliases: []string{"show_sequencer"},
+	Short:   "Show this node's sequencer info",
+	RunE:    showSequencer,
+	// PreRun:  deprecateSnakeCase,
+}
+
+func showSequencer(cmd *cobra.Command, args []string) error {
+	keyFilePath := tmconfig.PrivValidatorKeyFile()
+	if !tmos.FileExists(keyFilePath) {
+		return fmt.Errorf("sequencer file %s does not exist", keyFilePath)
+	}
+
+	pv := privval.LoadFilePV(keyFilePath, tmconfig.PrivValidatorStateFile())
+
+	pubKey, err := pv.GetPubKey()
+	if err != nil {
+		return fmt.Errorf("can't get pubkey: %w", err)
+	}
+
+	bz, err := tmjson.Marshal(pubKey)
+	if err != nil {
+		return fmt.Errorf("failed to marshal sequencer pubkey: %w", err)
+	}
+
+	fmt.Println(string(bz))
+	return nil
+}

cmd/dymint/main.go

@@ -14,6 +14,7 @@ func main() {
 	rootCmd := commands.RootCmd
 	rootCmd.AddCommand(
 		commands.InitFilesCmd,
+		commands.ShowSequencer,
 		debug.DebugCmd,
 		cli.NewCompletionCmd(rootCmd, true),
 	)