Added helptext to list variables

bot/handlers.go

@@ -52,7 +52,7 @@ func (b *Bot) checkuser(nick string) *User {
 func (b *Bot) checkHelp(channel string, parts []string) {
 	if len(parts) == 1 {
 		// just print out a list of help topics
-		topics := "Help topics: about"
+		topics := "Help topics: about variables"
 		for name, _ := range b.Plugins {
 			topics = fmt.Sprintf("%s, %s", topics, name)
 		}
@@ -63,6 +63,10 @@ func (b *Bot) checkHelp(channel string, parts []string) {
 			b.Help(channel, parts)
 			return
 		}
+		if parts[1] == "variables" {
+			b.listVars(channel, parts)
+			return
+		}
 		plugin := b.Plugins[parts[1]]
 		if plugin != nil {
 			plugin.Help(channel, parts)
@@ -206,6 +210,19 @@ func (b *Bot) Filter(message Message, input string) string {
 	return input
 }
 
+func (b *Bot) listVars(channel string, parts []string) {
+	var result []string
+	err := b.varColl.Find(bson.M{}).Distinct("variable", &result)
+	if err != nil {
+		panic(err)
+	}
+	msg := "I know: $who, $someone, $digit, $nonzero"
+	for _, variable := range result {
+		msg = fmt.Sprintf("%s, %s", msg, variable)
+	}
+	b.SendMessage(channel, msg)
+}
+
 func (b *Bot) Help(channel string, parts []string) {
 	msg := fmt.Sprintf("Hi, I'm based on godeepintir version %s. I'm written in Go, and you "+
 		"can find my source code on the internet here: "+

plugins/admin.go

@@ -31,6 +31,7 @@ func NewAdminPlugin(bot *bot.Bot) *AdminPlugin {
 // Otherwise, the function returns false and the bot continues execution of other plugins.
 func (p *AdminPlugin) Message(message bot.Message) bool {
 	// This bot does not reply to anything
+
 	if !message.User.Admin {
 		return false
 	}