Skip to content

Commit

Permalink
fix(webpack.config.dev): ship polyfills in dev mode as well.
Browse files Browse the repository at this point in the history
  • Loading branch information
@halfzebra
halfzebra committed Aug 5, 2018
1 parent 6c9f1e6 commit 9a2b556
Showing 1 changed file with 147 additions and 112 deletions.
259 changes: 147 additions & 112 deletions config/webpack.config.dev.js
View file
Expand Up @@ -3,9 +3,9 @@
const autoprefixer = require('autoprefixer');
const path = require('path');
const webpack = require('webpack');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const CaseSensitivePathsPlugin = require('case-sensitive-paths-webpack-plugin');
const InterpolateHtmlPlugin = require('react-dev-utils/InterpolateHtmlPlugin');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const getClientEnvironment = require('./env');
const paths = require('../config/paths');

Expand Down Expand Up @@ -46,6 +46,8 @@ module.exports = {
// This means they will be the "root" imports that are included in JS bundle.
// The first two entry points enable "hot" CSS and auto-refreshes for JS.
entry: [
// We ship a few polyfills by default:
require.resolve('./polyfills'),
// Include an alternative client for WebpackDevServer. A client's job is to
// connect to WebpackDevServer by a socket and get notified about changes.
// When you save a file, the client will either apply hot updates (in case
Expand All @@ -64,14 +66,9 @@ module.exports = {

paths.appIndexJs
],

output: {
// Add /* filename */ comments to generated require()s in the output.
pathinfo: true,

// The build folder.
path: paths.appBuild,

// This does not produce a real file. It's just the virtual path that is
// served by WebpackDevServer in development. This is the JS bundle
// containing code from all our entry points, and the Webpack runtime.
Expand All @@ -80,16 +77,17 @@ module.exports = {
chunkFilename: 'static/js/[name].chunk.js',
// This is the URL that app is served from. We use "/" in development.
publicPath: publicPath,

// Point sourcemap entries to original disk location (format as URL on Windows)
devtoolModuleFilenameTemplate: info =>
path.resolve(info.absoluteResourcePath).replace(/\\/g, '/')
},
optimization: {
// Automatically split vendor and commons
// https://twitter.com/wSokra/status/969633336732905474
// https://medium.com/webpack/webpack-4-code-splitting-chunk-graph-and-the-splitchunks-optimization-be739a861366
splitChunks: {
chunks: 'all'
chunks: 'all',
name: 'vendors'
},
// Keep the runtime chunk seperated to enable long term caching
// https://twitter.com/wSokra/status/969679223278505985
Expand All @@ -104,117 +102,155 @@ module.exports = {

strictExportPresence: true,
rules: [
// Disable require.ensure as it's not a standard language feature.
{ parser: { requireEnsure: false } },

{
test: /\.js$/,
exclude: [/elm-stuff/, /node_modules/],
loader: require.resolve('babel-loader'),
query: {
// Latest stable ECMAScript features
presets: [
[
require.resolve('babel-preset-env'),
// "oneOf" will traverse all following loaders until one will
// match the requirements. When no loader matches it will fall
// back to the "file" loader at the end of the loader list.
oneOf: [
// "url" loader works like "file" loader except that it embeds assets
// smaller than specified limit in bytes as data URLs to avoid requests.
// A missing `test` is equivalent to a match.
{
test: [/\.bmp$/, /\.gif$/, /\.jpe?g$/, /\.png$/],
loader: require.resolve('url-loader'),
options: {
limit: 10000,
name: 'static/media/[name].[hash:8].[ext]'
}
},

{
test: /\.js$/,
exclude: [/elm-stuff/, /node_modules/],
loader: require.resolve('babel-loader'),
query: {
// Latest stable ECMAScript features
presets: [
[
require.resolve('babel-preset-env'),
{
targets: {
// React parses on ie 9, so we should too
ie: 9,
// We currently minify with uglify
// Remove after https://github.com/mishoo/UglifyJS2/issues/448
uglify: true
},
// Disable polyfill transforms
useBuiltIns: false,
// Do not transform modules to CJS
modules: false
}
]
],
plugins: [
require.resolve(
'babel-plugin-transform-custom-element-classes'
),
[
require.resolve('babel-plugin-transform-runtime'),
{
helpers: false,
polyfill: false,
regenerator: true
}
]
]
}
},
// Process any JS outside of the app with Babel.
// Unlike the application JS, we only compile the standard ES features.
{
test: /\.js$/,
use: [
{
targets: {
// React parses on ie 9, so we should too
ie: 9,
// We currently minify with uglify
// Remove after https://github.com/mishoo/UglifyJS2/issues/448
uglify: true
},
// Disable polyfill transforms
useBuiltIns: false,
// Do not transform modules to CJS
modules: false
loader: require.resolve('babel-loader'),
options: {
babelrc: false,
compact: false,
presets: [require.resolve('babel-preset-env')],
cacheDirectory: true,
highlightCode: true
}
}
]
],
plugins: [
[
require.resolve('babel-plugin-transform-runtime'),
},
// "postcss" loader applies autoprefixer to our CSS.
// "css" loader resolves paths in CSS and adds assets as dependencies.
// "style" loader turns CSS into JS modules that inject <style> tags.
// In production, we use a plugin to extract that CSS to a file, but
// in development "style" loader enables hot editing of CSS.
// By default we support CSS Modules with the extension .module.css
{
test: /\.css$/,
exclude: /\.module\.css$/,
use: [
require.resolve('style-loader'),
{
loader: require.resolve('css-loader'),
options: {
importLoaders: 1
}
},
{
helpers: false,
polyfill: false,
regenerator: true
loader: require.resolve('postcss-loader'),
options: postCSSLoaderOptions
}
]
]
}
},

{
test: /\.elm$/,
exclude: [/elm-stuff/, /node_modules/],
use: [
{
loader: require.resolve('elm-hot-loader')
},
// string-replace-loader works as InterpolateHtmlPlugin for Elm,
// it replaces all of the %PUBLIC_URL% with the URL of your
// application, so you could serve static assets outside of the
// module system.
{
loader: require.resolve('string-replace-loader'),
query: {
search: '%PUBLIC_URL%',
replace: publicUrl,
flags: 'g'
}
test: /\.elm$/,
exclude: [/elm-stuff/, /node_modules/],
use: [
{
loader: require.resolve('elm-hot-loader')
},
// string-replace-loader works as InterpolateHtmlPlugin for Elm,
// it replaces all of the %PUBLIC_URL% with the URL of your
// application, so you could serve static assets outside of the
// module system.
{
loader: require.resolve('string-replace-loader'),
query: {
search: '%PUBLIC_URL%',
replace: publicUrl,
flags: 'g'
}
},
{
loader: require.resolve('elm-webpack-loader'),
options: {
verbose: true,
warn: true,
// If ELM_DEBUGGER was set to "false", disable it. Otherwise
// for invalid values, "true" and as a default, enable it
debug: process.env.ELM_DEBUGGER === 'false' ? false : true,
pathToMake: paths.elmMake,
forceWatch: true
}
}
]
},
// "file" loader makes sure those assets get served by WebpackDevServer.
// When you `import` an asset, you get its (virtual) filename.
// In production, they would get copied to the `build` folder.
// This loader doesn't use a "test" so it will catch all modules
// that fall through the other loaders.
{
loader: require.resolve('elm-webpack-loader'),
// Exclude `js` files to keep "css" loader working as it injects
// its runtime that would otherwise be processed through "file" loader.
// Also exclude `html` and `json` extensions so they get processed
// by webpacks internal loaders.
exclude: [/\.(js|elm)$/, /\.html$/, /\.json$/],
loader: require.resolve('file-loader'),
options: {
verbose: true,
warn: true,
// If ELM_DEBUGGER was set to "false", disable it. Otherwise
// for invalid values, "true" and as a default, enable it
debug: process.env.ELM_DEBUGGER === 'false' ? false : true,
pathToMake: paths.elmMake,
forceWatch: true
name: 'static/media/[name].[hash:8].[ext]'
}
}
]
},

// "postcss" loader applies autoprefixer to our CSS.
// "css" loader resolves paths in CSS and adds assets as dependencies.
// "style" loader turns CSS into JS modules that inject <style> tags.
// In production, we use a plugin to extract that CSS to a file, but
// in development "style" loader enables hot editing of CSS.
// By default we support CSS Modules with the extension .module.css
{
test: /\.css$/,
exclude: /\.module\.css$/,
use: [
require.resolve('style-loader'),
{
loader: require.resolve('css-loader'),
options: {
importLoaders: 1
}
},
{
loader: require.resolve('postcss-loader'),
options: postCSSLoaderOptions
}
]
},

{
exclude: [/\.html$/, /\.js$/, /\.elm$/, /\.css$/, /\.json$/, /\.svg$/],
loader: require.resolve('url-loader'),
options: {
limit: 10000,
name: 'static/media/[name].[hash:8].[ext]'
}
},

// "file" loader for svg
{
test: /\.svg$/,
loader: require.resolve('file-loader'),
options: {
name: 'static/media/[name].[hash:8].[ext]'
}
}
]
},
Expand All @@ -229,8 +265,10 @@ module.exports = {
// <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
// In development, this will be an empty string.
new InterpolateHtmlPlugin(env.raw),
// Add module names to factory functions so they appear in browser profiler.
new webpack.NamedModulesPlugin(),
// Makes some environment variables available to the JS code, for example:
// if (process.env.NODE_ENV === 'development') { ... }. See `./env.js`.
new webpack.DefinePlugin(env.stringified),
// This is necessary to emit hot updates (currently CSS only):
new webpack.HotModuleReplacementPlugin(),
// Watcher doesn't work well if you mistype casing in a path so we use
// a plugin that prints an error when you attempt to do this.
Expand All @@ -247,10 +285,7 @@ module.exports = {
tls: 'empty',
child_process: 'empty'
},
// Turn off performance hints during development because we don't do any
// splitting or minification in interest of speed. These warnings become
// cumbersome.
performance: {
hints: false
}
// Turn off performance processing because we utilize
// our own hints via the FileSizeReporter
performance: false
};

0 comments on commit 9a2b556

Please sign in to comment.