From dcca490618ccd7e804f01f7a232ce4fa9054eec8 Mon Sep 17 00:00:00 2001
From: Jeremy Tuloup <jeremy.tuloup@gmail.com>
Date: Fri, 3 May 2024 16:01:51 +0000
Subject: [PATCH 1/3] Add webpack config for prod

---
 app/package.json           |  2 +-
 app/webpack.prod.config.js | 29 +++++++++++++++++++++++++++++
 2 files changed, 30 insertions(+), 1 deletion(-)
 create mode 100644 app/webpack.prod.config.js

diff --git a/app/package.json b/app/package.json
index 25aa2764b0..c42a923336 100644
--- a/app/package.json
+++ b/app/package.json
@@ -4,7 +4,7 @@
   "private": true,
   "scripts": {
     "build": "webpack",
-    "build:prod": "webpack --mode=production",
+    "build:prod": "webpack --config ./webpack.prod.config.js",
     "clean": "rimraf build && jlpm run clean:static",
     "clean:static": "rimraf -g \"../notebook/static/!(favicons)\"",
     "watch": "webpack --config ./webpack.config.watch.js"
diff --git a/app/webpack.prod.config.js b/app/webpack.prod.config.js
new file mode 100644
index 0000000000..025b532242
--- /dev/null
+++ b/app/webpack.prod.config.js
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const merge = require('webpack-merge').default;
+const config = require('./webpack.config');
+const WPPlugin = require('@jupyterlab/builder').WPPlugin;
+
+config[0] = merge(config[0], {
+  mode: 'production',
+  devtool: 'source-map',
+  output: {
+    // Add version argument when in production so the Jupyter server
+    // allows caching of files (i.e., does not set the CacheControl header to no-cache to prevent caching static files)
+    filename: '[name].[contenthash].js?v=[contenthash]'
+  },
+  optimization: {
+    minimize: false
+  },
+  plugins: [
+    new WPPlugin.JSONLicenseWebpackPlugin({
+      excludedPackageTest: packageName =>
+        packageName === '@jupyterlab/application-top'
+    })
+  ]
+});
+
+module.exports = config;

From 925e5aa516beebf69ecdc24ee6139336b2812c6e Mon Sep 17 00:00:00 2001
From: Jeremy Tuloup <jeremy.tuloup@gmail.com>
Date: Fri, 3 May 2024 16:05:09 +0000
Subject: [PATCH 2/3] add optimization

---
 app/webpack.config.js | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/app/webpack.config.js b/app/webpack.config.js
index 4fdd9e5106..8707845b0b 100644
--- a/app/webpack.config.js
+++ b/app/webpack.config.js
@@ -214,7 +214,18 @@ module.exports = [
         type: 'var',
         name: ['_JUPYTERLAB', 'CORE_OUTPUT'],
       },
-      filename: 'bundle.js',
+      filename: '[name].[contenthash].js',
+    },
+    optimization: {
+      splitChunks: {
+        chunks: 'all',
+        cacheGroups: {
+          jlab_core: {
+            test: /[\\/]node_modules[\\/]@(jupyterlab|jupyter-notebook|lumino(?!\/datagrid))[\\/]/,
+            name: 'notebook_core',
+          },
+        },
+      },
     },
     resolve: {
       fallback: { util: false },

From 4fb347a6eeec6a381a0323259ed0d33c529a4748 Mon Sep 17 00:00:00 2001
From: Jeremy Tuloup <jeremy.tuloup@gmail.com>
Date: Fri, 3 May 2024 16:06:13 +0000
Subject: [PATCH 3/3] rename top package

---
 app/webpack.prod.config.js | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/app/webpack.prod.config.js b/app/webpack.prod.config.js
index 025b532242..db7e6dfdb5 100644
--- a/app/webpack.prod.config.js
+++ b/app/webpack.prod.config.js
@@ -13,17 +13,17 @@ config[0] = merge(config[0], {
   output: {
     // Add version argument when in production so the Jupyter server
     // allows caching of files (i.e., does not set the CacheControl header to no-cache to prevent caching static files)
-    filename: '[name].[contenthash].js?v=[contenthash]'
+    filename: '[name].[contenthash].js?v=[contenthash]',
   },
   optimization: {
-    minimize: false
+    minimize: false,
   },
   plugins: [
     new WPPlugin.JSONLicenseWebpackPlugin({
-      excludedPackageTest: packageName =>
-        packageName === '@jupyterlab/application-top'
-    })
-  ]
+      excludedPackageTest: (packageName) =>
+        packageName === '@jupyter-notebook/app',
+    }),
+  ],
 });
 
 module.exports = config;