Use assets for mail templates

notifications.go

@@ -3,6 +3,7 @@ package main
 import (
 	"bytes"
 	"fmt"
+	"git.cacert.org/cacert-boardvoting/boardvoting"
 	"github.com/Masterminds/sprig"
 	"gopkg.in/gomail.v2"
 	"text/template"
@@ -68,8 +69,11 @@ func MailNotifier(quitMailNotifier chan int) {
 }
 
 func buildMail(templateName string, context interface{}) (mailText *bytes.Buffer, err error) {
-	t, err := template.New(templateName).Funcs(
+	b, err := boardvoting.Asset(fmt.Sprintf("templates/%s", templateName))
-		sprig.GenericFuncMap()).ParseFiles(fmt.Sprintf("templates/%s", templateName))
+	if err != nil {
+		return
+	}
+	t, err := template.New(templateName).Funcs(sprig.GenericFuncMap()).Parse(string(b))
 	if err != nil {
 		return
 	}