Port bash scripts to JS

.github/workflows/pull_request.yml

@@ -9,9 +9,8 @@ jobs:
           runs-on: ubuntu-latest
         - name: macOS
           runs-on: macos-latest
-        # TODO: https://github.com/foolip/mdn-bcd-collector/issues/546
-        #- name: Windows
-        #  runs-on: windows-latest
+        - name: Windows
+          runs-on: windows-latest
     name: Test (${{ matrix.name }})
     runs-on: ${{ matrix.runs-on }}
     steps:

package.json

@@ -12,16 +12,16 @@
     "node": ">=12"
   },
   "scripts": {
-    "prepare": "if [ -d node_modules/puppeteer ]; then cd node_modules/puppeteer && PUPPETEER_PRODUCT=firefox node install.js; fi",
-    "lint": "eslint . && prettier -c '**/*.json' '**/*.md' '**/*.yaml' --color && ejslint views/*",
-    "lint-fix": "eslint --fix . && prettier --write '**/*.json' '**/*.md' '**/*.yaml'",
+    "prepare": "node scripts.js prepare",
+    "lint": "eslint . && prettier -c \"**/*.json\" \"**/*.md\" \"**/*.yaml\" --color && ejslint views/*",
+    "lint-fix": "eslint --fix . && prettier --write \"**/*.json\" \"**/*.md\" \"**/*.yaml\"",
     "clean": "rm -rf .nyc_output coverage generated tests.json",
     "build": "node build.js",
     "gcp-build": "npm run build",
     "deploy": "gcloud app deploy",
     "start": "node app.js",
     "start-dev": "nodemon --exec 'npm run build && npm start'",
-    "unittest": "NODE_ENV=test nyc mocha --recursive unittest",
+    "unittest": "node scripts.js unittest",
     "coverage": "nyc report -r lcov && open-cli coverage/lcov-report/index.html",
     "test": "npm run lint && npm run unittest",
     "selenium": "node selenium.js",

scripts.js

@@ -0,0 +1,37 @@
+// Copyright 2020 Mozilla Corporation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+const childProcess = require('child_process');
+
+const exec = (cmd, env) => {
+  env = {...process.env, ...env};
+  console.log(`> ${cmd}`);
+  return childProcess.execSync(cmd, {env, stdio: 'inherit'});
+};
+
+const prepare = () => {
+  try {
+    process.chdir('node_modules/puppeteer');
+  } catch {
+    return;
+  }
+  exec('node install.js', {PUPPETEER_PRODUCT: 'firefox'});
+};
+
+const command = process.argv[2];
+if (command === 'prepare') {
+  prepare();
+} else if (command === 'unittest') {
+  exec('nyc mocha --recursive unittest', {NODE_ENV: 'test'});
+}

unittest/puppeteer/harness.js

@@ -39,7 +39,15 @@ describe('harness.js', () => {
   after(() => server.close());
 
   for (const product of products) {
-    it(product, async () => {
+    it(product, async function() {
+      if (product === 'firefox' && process.platform === 'win32' &&
+        require('../../package.json').devDependencies.puppeteer === '5.3.1') {
+        // Browser.close() Firefox support is broken on Windows and causes hang
+        // https://github.com/puppeteer/puppeteer/issues/5673
+        /* eslint-disable no-invalid-this */
+        this.skip();
+        return;
+      }
       const browser = await puppeteer.launch({product});
       after(() => browser.close());