Added list command and ability to combine certificate usages.

main.go

@@ -16,6 +16,9 @@ var verbose bool
 
 func main() {
 
+	// list command flags
+	var listRevoked bool
+
 	// issue command flags
 	var name string
 	var subject string
@@ -60,6 +63,29 @@ func main() {
 	}
 	rootCmd.AddCommand(initCmd)
 
+	// lab-ca list command
+	var listCmd = &cobra.Command{
+		Use:   "list",
+		Short: "List issued certificates",
+		Run: func(cmd *cobra.Command, args []string) {
+			err := LoadCA()
+			if err != nil {
+				fmt.Fprintf(os.Stderr, "ERROR: %v\n", err)
+				os.Exit(1)
+			}
+			for _, certDef := range caState.Certificates {
+				if certDef.RevokedAt != "" {
+					continue
+				}
+				fmt.Printf("Certificate %s\n", certDef.Name)
+				fmt.Printf("\tSubject:   %s\n\tType:      %s\n\tIssued at: %s\n",
+					certDef.Subject, certDef.Type, certDef.Issued)
+			}
+		},
+	}
+	listCmd.Flags().BoolVar(&listRevoked, "revoked", false, "List all certificates, including revoked ones")
+	rootCmd.AddCommand(listCmd)
+
 	// lab-ca issue command
 	var issueCmd = &cobra.Command{
 		Use:   "issue",
@@ -82,7 +108,8 @@ func main() {
 
 	issueCmd.Flags().StringVar(&name, "name", "", "Name for the certificate and key files (used as subject if --subject is omitted)")
 	issueCmd.Flags().StringVar(&subject, "subject", "", "Subject Common Name for the certificate (optional, defaults to --name)")
-	issueCmd.Flags().StringVar(&certType, "type", "server", "Certificate type: client, server, server-only, code-signing, email")
+	issueCmd.Flags().StringVar(&certType, "type", "server",
+		"Certificate type: client, server, code-signing, email.\nCombine by specifying more than one separated by comma.")
 	issueCmd.Flags().StringArrayVar(&san, "san", nil,
 		"Subject Alternative Name (SAN). Use multiple times for multiple values.\nFormat: dns:example.com, ip:1.2.3.4, email:user@example.com")
 	issueCmd.Flags().StringVar(&validity, "validity", "1y", "Certificate validity (e.g. 2y, 6m, 30d). Overrides config file for this certificate.")