Write HTML output by default.

.gitignore

@@ -9,4 +9,5 @@ artifacts.log
 coverage
 
 results.html
+last-run-results.html
 .vscode

cli/index.js

@@ -100,11 +100,12 @@ if (!flags.auditWhitelist || flags.auditWhitelist === 'all') {
 
 // kick off a lighthouse run
 lighthouseModule(url, flags)
+  .then(results => Printer.write(results, outputMode, outputPath))
   .then(results => {
-    return Printer.write(results, outputMode, outputPath);
-  })
-  .then(status => {
-    outputPath !== 'stdout' && log.info('printer', status);
+    if (outputMode !== 'html') {
+      Printer.write(results, 'html', './last-run-results.html');
+    }
+    return;
   })
   .catch(err => {
     if (err.code === 'ECONNREFUSED') {

cli/printer.js

@@ -101,10 +101,6 @@ function createOutput(results, outputMode) {
         output += `    ${subitem.debugString}\n`;
       }
 
-      if (subitem.extendedInfo && !subitem.extendedInfo.formatter) {
-        log.log('warn', 'CLI formatter not provided', JSON.stringify(subitem.extendedInfo));
-      }
-
       if (subitem.extendedInfo && subitem.extendedInfo.value) {
         const formatter =
             Formatter.getByName(subitem.extendedInfo.formatter).getFormatter('pretty');
@@ -125,7 +121,7 @@ function createOutput(results, outputMode) {
  * @return {!Promise}
  */
 function writeToStdout(output) {
-  return Promise.resolve(process.stdout.write(`${output}\n`));
+  return process.stdout.write(`${output}\n`);
 }
 
 /**
@@ -133,18 +129,17 @@ function writeToStdout(output) {
  *
  * @param {string} filePath The destination path
  * @param {string} output The output to write
+ * @param {string} outputMode Output mode; either 'pretty', 'json', or 'html'.
  * @return {Promise}
  */
-function writeFile(filePath, output) {
-  return new Promise((resolve, reject) => {
+function writeFile(filePath, output, outputMode) {
   // TODO: make this mkdir to the filePath.
   fs.writeFile(filePath, output, 'utf8', err => {
     if (err) {
-        return reject(err);
+      throw err;
     }
 
-      resolve(`Output written to ${filePath}`);
-    });
+    log.info('printer', `${outputMode} output written to ${filePath}`);
   });
 }
 
@@ -157,16 +152,20 @@ function writeFile(filePath, output) {
  * @return {!Promise}
  */
 function write(results, mode, path) {
+  return new Promise((resolve, reject) => {
     const outputMode = checkOutputMode(mode);
     const outputPath = checkOutputPath(path);
 
     const output = createOutput(results, outputMode);
 
     if (outputPath === 'stdout') {
-    return writeToStdout(output);
+      writeToStdout(output);
+      return resolve(results);
     }
 
-  return writeFile(outputPath, output);
+    writeFile(outputPath, output, outputMode);
+    return resolve(results);
+  });
 }
 
 module.exports = {

formatters/accessibility.js

@@ -29,11 +29,7 @@ class Accessibilty extends Formatter {
         return function(info) {
           let output = `      - Rating: ${info.impact}\n` +
           `      - See: ${info.helpUrl}\n` +
-          '      - Nodes:\n' +
-          info.nodes.reduce((prev, node) => {
-            return prev + `        - ${node.target}\n`;
-          }, '');
-
+          `      - Nodes: ${info.nodes.length} nodes identified (see HTML output for details)\n`;
           return output;
         };
 

report/report-generator.js

@@ -180,10 +180,9 @@ class ReportGenerator {
           return;
         }
         if (!subItem.extendedInfo.formatter) {
-          log.log('warn', 'HTML formatter not provided', JSON.stringify(subItem.extendedInfo));
+          // HTML formatter not provided for this subItem
           return;
         }
-
         const formatter = Formatter.getByName(subItem.extendedInfo.formatter);
         const helpers = formatter.getHelpers();
         if (helpers) {

src/audits/mobile-friendly/display.js

@@ -38,8 +38,8 @@ class ManifestDisplay extends Audit {
    * @override
    */
   static get description() {
-    return `Manifest's display property set to standalone/fullscreen to
-            allow launching without address bar`;
+    return 'Manifest\'s display property set to standalone/fullscreen to ' +
+            'allow launching without address bar';
   }
 
   /**