Check if message was created by devtools. Closes #32.

src/__tests__/index.js

@@ -114,6 +114,17 @@ ava('should work with filenames', t => {
     });
 });
 
+ava('should ignore unrelated messages', t => {
+    let processors = [
+        plugin(),
+        postcss.plugin('unrelated', () => (css, result) => result.warn('Unrelated message!', {node: result.root})),
+    ];
+
+    return postcss(processors).process(fixture).then(result => {
+        t.deepEqual(result.messages.length, 2);
+    });
+});
+
 ava('should use the postcss plugin api', t => {
     t.truthy(plugin().postcssVersion, 'should be able to access version');
     t.deepEqual(plugin().postcssPlugin, name, 'should be able to access name');

src/index.js

@@ -26,6 +26,7 @@ function getMessage (plugin, completed, precise) {
         text: `Completed in ${formatted}`,
         time: convert(completed),
         rawTime: completed,
+        _devtools: true,
     };
 }
 

src/lib/formatter.js

@@ -27,7 +27,7 @@ function createResultsTable (messages) {
 }
 
 export default function formatter (input) {
-    const output = createResultsTable(input.messages);
+    const output = createResultsTable(input.messages.filter(m => m._devtools));
     return `${underline(logFrom(input.source))}\n${output}`;
 };