Add :quit command

commands/quit.go

@@ -0,0 +1,24 @@
+package commands
+
+import (
+	"errors"
+
+	"git.sr.ht/~sircmpwn/aerc2/widgets"
+)
+
+func init() {
+	Register("quit", ChangeQuit)
+}
+
+type ErrorExit int
+
+func (err ErrorExit) Error() string {
+	return "exit"
+}
+
+func ChangeQuit(aerc *widgets.Aerc, args []string) error {
+	if len(args) != 1 {
+		return errors.New("Usage: quit")
+	}
+	return ErrorExit(1)
+}