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wright-webpack-config

v1.1.0

Published

A webpack config for internal use.

Downloads

6

Readme

wright-webpack-config

A Webpack config for internal use (but it's CC0, so you can use it too if you want!), that supports every feature in every published ECMAScript version (even those that use polyfills), and produces separate bundles for evergreen browsers and Internet Explorer. This lets us exclude polyfills and Babel transforms for features that evergreen browsers support, reducing file size.

It also includes support for the following:

  • React/JSX
  • TypeScript/TSX
  • Imports of CSS files
  • CSS Modules (with the recommended .module.css or alternative .icss file extensions)
  • Bundle Tracker (important for Django integration!)
  • CleanWebpackPlugin (helps avoid filling up your disk and/or crashing Webpack due to too many files.)

Usage

Install wright-webpack-config. You'll also need to install webpack, core-js, and (if you're using it) typescript yourself.

Then, in your webpack.config.js:

const config = require("wright-webpack-config").default
const path = require("path")

module.exports = config({
  inDir: path.resolve(__dirname, "js"),
  outDir: path.resolve(__dirname, "myproject", "static", "build"),
})

If you're using TypeScript, you'll also want to add the following to your tsconfig.json:

{
  "compilerOptions": {
    "target": "esnext",
    "module": "es2015"
  }
}

This stops TypeScript from producing ES3 output unconditionally, instead letting babel-preset-env produce the appropriate code for the appropriate browsers. (If you're using Relay, it also prevents TypeScript from munging the names of imported identifiers in a way that prevents Relay from working.)

Then, run webpack --mode development, or webpack --mode production. Don't run webpack -d or webpack -p, they are not shorthand for the above!

Parameters

  • inDir: Required. Root directory of your frontend code.
  • outDir: Required. Directory to output code to.
  • publicPath: Path that Webpack output will be available from on the server. Defaults to /static/build/.
  • transformConfig: Function that takes the generated config and potentially makes changes to it.

Example usage with Django

Install django-webpack-loader, then edit your settings.py:

 INSTALLED_APPS = (
     # ...
+    'webpack_loader',
 )

 # ...

+WEBPACK_LOADER = {
+    'evergreen': {
+        'BUNDLE_DIR_NAME': 'build/',
+        'STATS_FILE': os.path.join(STATIC_DIR, 'build',
+                                   '__webpack.evergreen.json'),
+    },
+    'iexplore': {
+        'BUNDLE_DIR_NAME': 'build/',
+        'STATS_FILE': os.path.join(STATIC_DIR, 'build',
+                                   '__webpack.iexplore.json'),
+    },
+}

Then, in your templates, add the following:

{% load webpack_loader %}
{# ... #}
{% if 'Trident/' in request.META.HTTP_USER_AGENT %}
    {% render_bundle 'main' config='iexplore' %}
{% else %}
    {% render_bundle 'main' config='evergreen' %}
{% endif %}

License