add logtr.sosf for sos straight to specific matrix

message/images_test.go

@@ -16,7 +16,7 @@ func TestImageUpload(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	if err := config.Refresh(); err != nil {
+	if err := config.Refresh(nil); err != nil {
 		t.Fatal(err)
 	}
 	got, err := UploadImage(b)

message/matrix.go

@@ -23,15 +23,24 @@ type Matrix struct {
 	continuation string
 }
 
+func NewSOSMatrix() logtr.SOSer {
+	conf := config.Get().Log.SOSMatrix
+	return newMatrix(conf, "0")
+}
+
 func NewMatrix() Matrix {
 	conf := config.Get().Message.Matrix
+	return newMatrix(conf, GetMatrixContinuation())
+}
+
+func newMatrix(conf config.Matrix, cont string) Matrix {
 	return Matrix{
 		homeserver:   conf.Homeserver,
 		username:     conf.Username,
 		token:        conf.Token,
 		room:         conf.Room,
 		mock:         conf.Mock,
-		continuation: GetMatrixContinuation(),
+		continuation: cont,
 	}
 }