util: use assets from embeded FS

ui/assets.go

@@ -14,6 +14,10 @@ var _assets embed.FS
 
 var Assets http.FileSystem
 
+func GetEmbedFS() embed.FS {
+	return _assets
+}
+
 func init() {
 	sub, err := fs.Sub(_assets, "dist")
 	if err != nil {

utils/mail.go

@@ -35,9 +35,12 @@ import (
 	"bytes"
 	"flag"
 	"io"
+	"io/fs"
 	"net/mail"
 	"text/template"
 
+	"git.happydns.org/happydns/ui"
+
 	gomail "github.com/go-mail/mail"
 	"github.com/yuin/goldmark"
 	"github.com/yuin/goldmark/extension"
@@ -135,7 +138,7 @@ func SendMail(to *mail.Address, subject, content string) (err error) {
 		return
 	}
 
-	if data, err := Asset("htdocs/dist/img/happydns.png"); err != nil {
+	if data, err := fs.ReadFile(ui.GetEmbedFS(), "dist/img/happydns.png"); err != nil {
 		m.EmbedReader("happydns.png", bytes.NewReader(data))
 	}