tell people about the source if they ask

plugins/plugins.go

@@ -47,4 +47,5 @@ var Plugs = Plugins{
 	&HighFive{},
 	&Hi{},
 	&LoveYou{},
+	&Source{},
 }

plugins/source.go

@@ -0,0 +1,42 @@
+package plugins
+
+import (
+	"fmt"
+	"log"
+	"regexp"
+
+	"github.com/matrix-org/gomatrix"
+)
+
+// Source responds to source requests
+type Source struct {
+}
+
+func (h *Source) match(msg string) bool {
+	re := regexp.MustCompile(`(?i)where is your (source|code)`)
+	return re.MatchString(msg)
+}
+
+// Respond to questions about TheSource™©®⑨
+func (h *Source) Respond(c *gomatrix.Client, ev *gomatrix.Event, user string) {
+	if mtype, ok := ev.MessageType(); ok {
+		switch mtype {
+		case "m.text":
+			if post, ok := ev.Body(); ok {
+				u := NameRE.ReplaceAllString(user, "$1")
+				s := NameRE.ReplaceAllString(ev.Sender, "$1")
+				if ToMe(u, post) {
+					if h.match(post) {
+						log.Printf("%s: responding to '%s'", h.Name(), ev.Sender)
+						SendMessage(c, ev.RoomID, fmt.Sprintf("%s: %s ;D", s, "https://git.sr.ht/~qbit/mcchunkie"))
+					}
+				}
+			}
+		}
+	}
+}
+
+// Name Source
+func (h *Source) Name() string {
+	return "Source"
+}