_initConfigAndCollectFileNames()

in tools/plunker-builder/builder.js [255:312]

• 50 lines of code
• 11 McCabe index (conditional complexity)

  _initConfigAndCollectFileNames(configFileName) {
    var configDir = path.dirname(configFileName);
    var configSrc = fs.readFileSync(configFileName, 'utf-8');
    try {
      var config = (configSrc && configSrc.trim().length) ? JSON.parse(configSrc) : {};
      config.basePath = config.basePath ? path.resolve(configDir, config.basePath) : configDir;
    } catch (e) {
      throw new Error(`Plunker config - unable to parse json file: ${configFileName}\n${e}`);
    }

    var defaultIncludes = ['**/*.ts', '**/*.js', '**/*.css', '**/*.html', '**/*.md', '**/*.json', '**/*.png'];
    if (config.files) {
      if (config.files.length > 0) {
        if (config.files[0].substr(0, 1) == '!') {
          config.files = defaultIncludes.concat(config.files);
        }
      }
    } else {
      config.files = defaultIncludes;
    }
    var includeSpec = false;
    var gpaths = config.files.map(function(fileName) {
      fileName = fileName.trim();
      if (fileName.substr(0,1) == '!') {
        return "!" + path.join(config.basePath, fileName.substr(1));
      } else {
        includeSpec = includeSpec || /.*\.spec.(ts|js)$/.test(fileName);
        return path.join(config.basePath, fileName);
      }
    });

    var defaultExcludes = [
      '!**/tsconfig.json',
      '!**/*plnkr.*',
      '!**/package.json',
      '!**/example-config.json',
      '!**/tslint.json',
      '!**/.editorconfig',
      '!**/systemjs.config.js',
      '!**/wallaby.js',
      '!**/karma-test-shim.js',
      '!**/karma.conf.js',
      // AoT related files
      '!**/aot/**/*.*',
      '!**/*-aot.*'
    ];

    // exclude all specs if no spec is mentioned in `files[]`
    if (!includeSpec) {
      defaultExcludes = defaultExcludes.concat(['!**/*.spec.*','!**/spec.js']);
    }

    Array.prototype.push.apply(gpaths, defaultExcludes);

    config.fileNames = globby.sync(gpaths, { ignore: ["**/node_modules/**"] });

    return config;
  }