remove fail reader

libs/template/reader.go

@@ -153,13 +153,3 @@ func (r *localReader) FS(ctx context.Context) (fs.FS, error) {
 func (r *localReader) Close() error {
 	return nil
 }
-
-type failReader struct{}
-
-func (r *failReader) FS(ctx context.Context) (fs.FS, error) {
-	return nil, fmt.Errorf("this is a placeholder reader that always fails. Please configure a real reader.")
-}
-
-func (r *failReader) Close() error {
-	return fmt.Errorf("this is a placeholder reader that always fails. Please configure a real reader.")
-}

libs/template/reader_test.go

@@ -114,10 +114,3 @@ func TestLocalReader(t *testing.T) {
 	// Assert close does not error
 	assert.NoError(t, r.Close())
 }
-
-func TestFailReader(t *testing.T) {
-	r := &failReader{}
-	assert.Error(t, r.Close())
-	_, err := r.FS(context.Background())
-	assert.Error(t, err)
-}

libs/template/template.go

@@ -71,8 +71,9 @@ var allTemplates = []Template{
 	{
 		name:        Custom,
 		description: "Bring your own template",
-		Reader:      &failReader{},
-		Writer:      &defaultWriter{},
+		// Reader is determined at runtime based on the user input.
+		Reader: nil,
+		Writer: &defaultWriter{},
 	},
 }