From 85d4a3a5fd6881b07e97fb690d31baef405cfa69 Mon Sep 17 00:00:00 2001
From: Tasso Evangelista <tasso.evangelista@rocket.chat>
Date: Fri, 13 Nov 2020 22:16:10 -0300
Subject: [PATCH] fix: Set a conservative output.environment on Webpack bundles
 (#330)

---
 packages/fuselage-ui-kit/webpack.config.js | 17 +++++++++++------
 packages/fuselage/webpack.config.js        | 11 ++++++++++-
 packages/ui-kit/.eslintignore              |  1 +
 packages/ui-kit/webpack.config.js          |  9 +++++++++
 4 files changed, 31 insertions(+), 7 deletions(-)

diff --git a/packages/fuselage-ui-kit/webpack.config.js b/packages/fuselage-ui-kit/webpack.config.js
index 5aa0ad1d..05ada8d0 100644
--- a/packages/fuselage-ui-kit/webpack.config.js
+++ b/packages/fuselage-ui-kit/webpack.config.js
@@ -12,11 +12,20 @@ module.exports = (env, { mode = 'production' }) => ({
     'fuselage-ui-kit': path.resolve(__dirname, 'src/index.js'),
   },
   output: {
-    filename: `[name].${ mode }.js`,
+    filename: `[name].${mode}.js`,
     path: path.resolve(__dirname, 'dist'),
     library: 'RocketChatFuselageUiKit',
     libraryTarget: 'umd',
     umdNamedDefine: true,
+    environment: {
+      arrowFunction: false,
+      bigIntLiteral: false,
+      const: false,
+      destructuring: false,
+      dynamicImport: false,
+      forOf: false,
+      module: false,
+    },
   },
   devtool: mode === 'production' ? false : 'source-map',
   module: {
@@ -28,11 +37,7 @@ module.exports = (env, { mode = 'production' }) => ({
       },
     ],
   },
-  externals: [
-    'react',
-    'react-dom',
-    /^@rocket.chat\//,
-  ],
+  externals: ['react', 'react-dom', /^@rocket.chat\//],
   plugins: [
     new webpack.DefinePlugin({
       'process.env.VERSION': JSON.stringify(pkg.version),
diff --git a/packages/fuselage/webpack.config.js b/packages/fuselage/webpack.config.js
index 5dace7ed..2e862ad0 100644
--- a/packages/fuselage/webpack.config.js
+++ b/packages/fuselage/webpack.config.js
@@ -9,11 +9,20 @@ module.exports = (env, { mode = 'production' }) => ({
     fuselage: path.resolve(__dirname, 'src/index.js'),
   },
   output: {
-    filename: `[name].${ mode }.js`,
+    filename: `[name].${mode}.js`,
     path: path.resolve(__dirname, 'dist'),
     library: 'RocketChatFuselage',
     libraryTarget: 'umd',
     umdNamedDefine: true,
+    environment: {
+      arrowFunction: false,
+      bigIntLiteral: false,
+      const: false,
+      destructuring: false,
+      dynamicImport: false,
+      forOf: false,
+      module: false,
+    },
   },
   devtool: mode === 'production' ? false : 'source-map',
   module: {
diff --git a/packages/ui-kit/.eslintignore b/packages/ui-kit/.eslintignore
index 56db724d..e87b4005 100644
--- a/packages/ui-kit/.eslintignore
+++ b/packages/ui-kit/.eslintignore
@@ -1,3 +1,4 @@
 /node_modules
 /dist
 !/.eslintrc.js
+/webpack.config.js
diff --git a/packages/ui-kit/webpack.config.js b/packages/ui-kit/webpack.config.js
index 34c75e56..2a35c457 100644
--- a/packages/ui-kit/webpack.config.js
+++ b/packages/ui-kit/webpack.config.js
@@ -16,6 +16,15 @@ module.exports = (env, argv) => ({
     library: 'RocketChatUiKit',
     libraryTarget: 'umd',
     umdNamedDefine: true,
+    environment: {
+      arrowFunction: false,
+      bigIntLiteral: false,
+      const: false,
+      destructuring: false,
+      dynamicImport: false,
+      forOf: false,
+      module: false,
+    },
   },
   resolve: {
     extensions: ['.ts', '.tsx', '.js'],
-- 
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