Added version command both commandline and in chat

Hi! I've added a command line version argument, as well as a version command that the bot will respond to in chat.

The current version is listed in the strings.go file.

commands.go

@@ -192,6 +192,14 @@ func parseCommand(user *gumble.User, username, command string) {
 		} else {
 			dj.SendPrivateMessage(user, NO_PERMISSION_MSG)
 		}
+
+        // Version command
+        case dj.conf.Aliases.VersionAlias:
+                if dj.HasPermission(username, dj.conf.Permissions.AdminVersion) {
+                        version(user)
+                } else {
+                        dj.SendPrivateMessage(user, NO_PERMISSION_MSG)
+                }
 	default:
 		dj.SendPrivateMessage(user, COMMAND_DOESNT_EXIST_MSG)
 	}
@@ -501,3 +509,9 @@ func listSongs(user *gumble.User, value string) {
 		dj.SendPrivateMessage(user, NO_MUSIC_PLAYING_MSG)
 	}
 }
+
+// version handles !version functionality. Sends a private message to the user with the most recent version of MumbleDJ 
+func version(user *gumble.User) {
+        dj.SendPrivateMessage(user, DJ_VERSION)
+}
+  

config.gcfg

@@ -162,6 +162,10 @@ ShuffleOffAlias = "shuffleoff"
 # DEFAULT_VALUE: "listsongs"
 ListSongsAlias = "listsongs"
 
+# Alias used for version command
+# DEFAULT_VALUE: "version"
+VersionAlias = "version"
+
 [Permissions]
 
 # Enable admins
@@ -249,6 +253,10 @@ AdminShuffle = true
 # DEFAULT VALUE: false
 AdminListSongs = false
 
+# Make version an admin command?
+# DEFAULT VALUE: false
+AdminVersion = false
+
 # Make shuffleon and shuffleoff admin commands?
 # DEFAULT VALUE: true
 AdminShuffleToggle = true

main.go

@@ -199,6 +199,7 @@ func main() {
 
 	var address, port, username, password, channel, pemCert, pemKey, accesstokens string
 	var insecure bool
+	var version bool
 
 	flag.StringVar(&address, "server", "localhost", "address for Mumble server")
 	flag.StringVar(&port, "port", "64738", "port for Mumble server")
@@ -209,8 +210,14 @@ func main() {
 	flag.StringVar(&pemKey, "key", "", "path to user PEM key for MumbleDJ")
 	flag.StringVar(&accesstokens, "accesstokens", "", "list of access tokens for channel auth")
 	flag.BoolVar(&insecure, "insecure", false, "skip certificate checking")
+	flag.BoolVar(&version, "version", false, "show version")
 	flag.Parse()
 
+        if version {
+		fmt.Printf("MumbleDJ version %s\n", VERSION)
+		os.Exit(0)
+        }
+
 	dj.config = gumble.Config{
 		Username: username,
 		Password: password,

parseconfig.go

@@ -60,6 +60,7 @@ type DjConfig struct {
 		ShuffleOnAlias         string
 		ShuffleOffAlias        string
 		ListSongsAlias         string
+		VersionAlias           string
 	}
 	Permissions struct {
 		AdminsEnabled      bool
@@ -83,6 +84,7 @@ type DjConfig struct {
 		AdminShuffle       bool
 		AdminShuffleToggle bool
 		AdminListSongs     bool
+		AdminVersion       bool
 	}
 	ServiceKeys struct {
 		Youtube    string

strings.go

@@ -7,6 +7,12 @@
 
 package main
 
+// Current version of the bot 
+const VERSION = "v2.8.12"
+
+// Message shown to users when they request the version of the bot 
+const DJ_VERSION = "I'm currently running version MumbleDJ <b>" + VERSION + "</b>."
+
 // Message shown to users when the bot has an invalid API key.
 const INVALID_API_KEY = "MumbleDJ does not have a valid %s API key."
 
@@ -131,6 +137,7 @@ const HELP_HTML = `<br/>
 	<p><b>!listsongs</b> - Lists the songs in queue.</p>
 	<p><b>!nextsong</b> - Shows the title and submitter of the next queue item if it exists.</p>
 	<p><b>!currentsong</b> - Shows the title and submitter of the song currently playing.</p>
+	<p><b>!version</b> - Shows the version of the bot.</p>
 	<p style="-qt-paragraph-type:empty"><br/></p>
 	<p><b>Admin Commands:</b></p>
 	<p><b>!addnext</b> - Adds songs/playlists to queue after the current song.</p>