feat: Add support for port scanning in the development server to use …

…the first available port from 9999 to 10999. (#145)

generators/app/index.js

@@ -215,6 +215,7 @@ module.exports = yeoman.generators.Base.extend({
       '_.gitignore',
       '_.npmignore',
       'scripts/_banner.ejs',
+      'scripts/_server.js',
       'scripts/_version.js'
     ];
 

generators/app/package-json.js

@@ -26,6 +26,7 @@ const DEFAULTS = {
     'mkdirp': '^0.5.1',
     'node-static': '^0.7.9',
     'npm-run-all': '^4.0.2',
+    'portscanner': '^2.1.1',
     'qunitjs': '^2.3.2',
     'rimraf': '^2.6.1',
     'rollup': '^0.50.0',
@@ -173,11 +174,7 @@ const packageJSON = (current, context) => {
       'lint': 'vjsstandard',
       'prepublish': 'not-in-install && npm run build || in-install',
       'start': 'npm-run-all -p start:server watch',
-      'start:server': scriptify([
-        'static -a 0.0.0.0 -p 9999',
-        '-H \'{"Cache-Control": "no-cache, must-revalidate"}\'',
-        '.'
-      ]),
+      'start:server': 'node scripts/server.js',
       'pretest': 'npm-run-all lint build',
       'test': 'karma start test/karma.conf.js',
       'preversion': 'npm test',

generators/app/templates/scripts/_server.js

@@ -0,0 +1,32 @@
+const http = require('http');
+const portscanner = require('portscanner');
+const static = require('node-static');
+
+const files = new static.Server(process.cwd(), {cache: false});
+
+const server = http.createServer((request, response) => {
+  response.setHeader('Cache-Control', 'no-cache,must-revalidate');
+
+  request.addListener('end', () => {
+    files.serve(request, response, (err) => {
+      if (err) {
+        response.writeHead(err.status, err.headers);
+        response.end('Not Found');
+      }
+
+      console.log([
+        (new Date()).toISOString(),
+        `[${response.statusCode}]`,
+        request.url
+      ].join(' '));
+    });
+  }).resume();
+});
+
+portscanner.findAPortNotInUse(9999, 10999).then((port) => {
+  server.listen(port, '0.0.0.0');
+  console.log(`serving "." at http://0.0.0.0:${port}`);
+}).catch((err) => {
+  console.log('could not find an open port: ', err);
+  process.exit(1);
+});