embed sass source-maps in non-release builds

Author: onweru

src/pipelines/sass.rs

@@ -103,13 +103,19 @@ impl Sass {
                 .display()
                 .to_string();
 
+        let (no_source_map, expanded_style) = ("---no-source-map", "expanded");
+        let (source_map, output_style) = match self.cfg.release {
+            true => match self.cfg.no_minification {
+                true => (no_source_map, expanded_style),
+                false => (no_source_map, "compressed"),
+            },
+            false => ("--embed-source-map", expanded_style),
+        };
+
         let args = &[
-            "--no-source-map",
+            source_map,
             "--style",
-            match self.cfg.release && !self.cfg.no_minification {
-                true => "compressed",
-                false => "expanded",
-            },
+            output_style,
             &source_path_str,
             &temp_target_file_path,
         ];