fix to allow node-sass to pipe content with embedded sourcemap to other tools

lib/render.js

@@ -57,7 +57,7 @@ module.exports = function(options, emitter) {
     if (!destination || stdin) {
       emitter.emit('log', result.css.toString());
 
-      if (sourceMap) {
+      if (sourceMap && !options.sourceMapEmbed) {
         emitter.emit('log', result.map.toString());
       }
 

test/cli.js

@@ -470,6 +470,26 @@ describe('cli', function() {
         done();
       });
     });
+
+    it('should compile with the --source-map-embed option and no outfile', function(done) {
+        var src = fixture('source-map-embed/index.scss');
+        var expectedCss = read(fixture('source-map-embed/expected.css'), 'utf8').trim().replace(/\r\n/g, '\n');
+        var result = '';
+        var bin = spawn(cli, [
+          src,
+          '--source-map-embed',
+          '--source-map', 'true'
+        ]);
+        
+        bin.stdout.on('data', function(data) {
+            result += data;
+        });
+
+        bin.once('close', function() {
+          assert.equal(result.trim().replace(/\r\n/g, '\n'), expectedCss);
+          done();
+        });
+    });
   });
 
   describe('node-sass sass/ --output css/', function() {

test/fixtures/source-map-embed/expected.css

+#navbar {
+  width: 80%;
+  height: 23px; }
+
+#navbar ul {
+  list-style-type: none; }
+
+#navbar li {
+  float: left; }
+  #navbar li a {
+    font-weight: bold; }
+
+/*# sourceMappingURL=data:application/json;base64,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 */
\ No newline at end of file

test/fixtures/source-map-embed/index.scss

+#navbar {
+  width: 80%;
+  height: 23px;
+}
+
+#navbar ul {
+  list-style-type: none;
+}
+
+#navbar li {
+  float: left;
+
+  a {
+    font-weight: bold;
+  }
+}