Build system: fix standalone debugging & inclusion of node dependenci…

…es (prebid#11375)

gulpfile.js

@@ -11,6 +11,7 @@ var webpackStream = require('webpack-stream');
 var gulpClean = require('gulp-clean');
 var opens = require('opn');
 var webpackConfig = require('./webpack.conf.js');
+const standaloneDebuggingConfig = require('./webpack.debugging.js');
 var helpers = require('./gulpHelpers.js');
 var concat = require('gulp-concat');
 var replace = require('gulp-replace');
@@ -127,35 +128,56 @@ function viewReview(done) {
 
 viewReview.displayName = 'view-review';
 
-function makeDevpackPkg() {
-  var cloned = _.cloneDeep(webpackConfig);
-  Object.assign(cloned, {
-    devtool: 'source-map',
-    mode: 'development'
-  })
+function makeVerbose(config = webpackConfig) {
+  return _.merge({}, config, {
+    optimization: {
+      minimizer: [
+        new TerserPlugin({
+          parallel: true,
+          terserOptions: {
+            mangle: false,
+            format: {
+              comments: 'all'
+            }
+          },
+          extractComments: false,
+        }),
+      ],
+    }
+  });
+}
 
-  const babelConfig = require('./babelConfig.js')({disableFeatures: helpers.getDisabledFeatures(), prebidDistUrlBase: argv.distUrlBase || '/build/dev/'});
+function makeDevpackPkg(config = webpackConfig) {
+  return function() {
+    var cloned = _.cloneDeep(config);
+    Object.assign(cloned, {
+      devtool: 'source-map',
+      mode: 'development'
+    })
+
+    const babelConfig = require('./babelConfig.js')({disableFeatures: helpers.getDisabledFeatures(), prebidDistUrlBase: argv.distUrlBase || '/build/dev/'});
 
-  // update babel config to set local dist url
-  cloned.module.rules
-    .flatMap((rule) => rule.use)
-    .filter((use) => use.loader === 'babel-loader')
-    .forEach((use) => use.options = Object.assign({}, use.options, babelConfig));
+    // update babel config to set local dist url
+    cloned.module.rules
+      .flatMap((rule) => rule.use)
+      .filter((use) => use.loader === 'babel-loader')
+      .forEach((use) => use.options = Object.assign({}, use.options, babelConfig));
 
-  var externalModules = helpers.getArgModules();
+    var externalModules = helpers.getArgModules();
 
-  const analyticsSources = helpers.getAnalyticsSources();
-  const moduleSources = helpers.getModulePaths(externalModules);
+    const analyticsSources = helpers.getAnalyticsSources();
+    const moduleSources = helpers.getModulePaths(externalModules);
 
-  return gulp.src([].concat(moduleSources, analyticsSources, 'src/prebid.js'))
-    .pipe(helpers.nameModules(externalModules))
-    .pipe(webpackStream(cloned, webpack))
-    .pipe(gulp.dest('build/dev'))
-    .pipe(connect.reload());
+    return gulp.src([].concat(moduleSources, analyticsSources, 'src/prebid.js'))
+      .pipe(helpers.nameModules(externalModules))
+      .pipe(webpackStream(cloned, webpack))
+      .pipe(gulp.dest('build/dev'))
+      .pipe(connect.reload());
+  }
 }
 
-function makeWebpackPkg(extraConfig = {}) {
-  var cloned = _.merge(_.cloneDeep(webpackConfig), extraConfig);
+function makeWebpackPkg(config = webpackConfig) {
+  var cloned = _.cloneDeep(config)
   if (!argv.sourceMaps) {
     delete cloned.devtool;
   }
@@ -495,26 +517,11 @@ gulp.task(escapePostbidConfig);
 gulp.task('build-creative-dev', gulp.series(buildCreative(argv.creativeDev ? 'development' : 'production'), updateCreativeRenderers));
 gulp.task('build-creative-prod', gulp.series(buildCreative(), updateCreativeRenderers));
 
-gulp.task('build-bundle-dev', gulp.series('build-creative-dev', makeDevpackPkg, gulpBundle.bind(null, true)));
-gulp.task('build-bundle-prod', gulp.series('build-creative-prod', makeWebpackPkg(), gulpBundle.bind(null, false)));
+gulp.task('build-bundle-dev', gulp.series('build-creative-dev', makeDevpackPkg(standaloneDebuggingConfig), makeDevpackPkg(), gulpBundle.bind(null, true)));
+gulp.task('build-bundle-prod', gulp.series('build-creative-prod', makeWebpackPkg(standaloneDebuggingConfig), makeWebpackPkg(), gulpBundle.bind(null, false)));
 // build-bundle-verbose - prod bundle except names and comments are preserved. Use this to see the effects
 // of dead code elimination.
-gulp.task('build-bundle-verbose', gulp.series(makeWebpackPkg({
-  optimization: {
-    minimizer: [
-      new TerserPlugin({
-        parallel: true,
-        terserOptions: {
-          mangle: false,
-          format: {
-            comments: 'all'
-          }
-        },
-        extractComments: false,
-      }),
-    ],
-  }
-}), gulpBundle.bind(null, false)));
+gulp.task('build-bundle-verbose', gulp.series('build-creative-dev', makeWebpackPkg(makeVerbose(standaloneDebuggingConfig)), makeWebpackPkg(makeVerbose()), gulpBundle.bind(null, true)));
 
 // public tasks (dependencies are needed for each task since they can be ran on their own)
 gulp.task('test-only', test);

webpack.conf.js

@@ -51,9 +51,6 @@ module.exports = {
       'prebid-core': {
         import: './src/prebid.js'
       },
-      'debugging-standalone': {
-        import: './modules/debugging/standalone.js'
-      }
     };
     const selectedModules = new Set(helpers.getArgModules());
 
@@ -130,15 +127,8 @@ module.exports = {
         );
         const core = path.resolve('./src');
         const paapiMod = path.resolve('./modules/paapi.js');
-        const nodeModules = path.resolve('./node_modules');
 
         return Object.assign(libraries, {
-          common_deps: {
-            name: 'common_deps',
-            test(module) {
-              return module.resource && module.resource.startsWith(nodeModules);
-            }
-          },
           core: {
             name: 'chunk-core',
             test: (module) => {

webpack.debugging.js

@@ -0,0 +1,30 @@
+var path = require('path');
+
+module.exports = {
+  mode: 'production',
+  devtool: 'source-map',
+  resolve: {
+    modules: [
+      path.resolve('.'),
+      'node_modules'
+    ],
+  },
+  entry: {
+    'debugging-standalone': {
+      import: './modules/debugging/standalone.js',
+    }
+  },
+  module: {
+    rules: [
+      {
+        test: /\.js$/,
+        exclude: path.resolve('./node_modules'), // required to prevent loader from choking non-Prebid.js node_modules
+        use: [
+          {
+            loader: 'babel-loader'
+          }
+        ]
+      },
+    ]
+  }
+};