239 lines
9.4 KiB
JavaScript
239 lines
9.4 KiB
JavaScript
"use strict"
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var autoprefixer = require("autoprefixer")
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var webpack = require("webpack")
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var HtmlWebpackPlugin = require("html-webpack-plugin")
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var ExtractTextPlugin = require("extract-text-webpack-plugin")
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var ManifestPlugin = require("webpack-manifest-plugin")
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var InterpolateHtmlPlugin = require("react-dev-utils/InterpolateHtmlPlugin")
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var paths = require("./paths")
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var getClientEnvironment = require("./env")
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// Webpack uses `publicPath` to determine where the app is being served from.
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// It requires a trailing slash, or the file assets will get an incorrect path.
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var publicPath = paths.servedPath
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// Some apps do not use client-side routing with pushState.
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// For these, "homepage" can be set to "." to enable relative asset paths.
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var shouldUseRelativeAssetPaths = publicPath === "./"
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// `publicUrl` is just like `publicPath`, but we will provide it to our app
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// as %PUBLIC_URL% in `index.html` and `process.env.PUBLIC_URL` in JavaScript.
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// Omit trailing slash as %PUBLIC_URL%/xyz looks better than %PUBLIC_URL%xyz.
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var publicUrl = publicPath.slice(0, -1)
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// Get environment variables to inject into our app.
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var env = getClientEnvironment(publicUrl)
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// Assert this just to be safe.
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// Development builds of React are slow and not intended for production.
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if (env.stringified["process.env"].NODE_ENV !== '"production"') {
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throw new Error("Production builds must have NODE_ENV=production.")
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}
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// Note: defined here because it will be used more than once.
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const cssFilename = "_static/css/[name].[contenthash:8].css"
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// ExtractTextPlugin expects the build output to be flat.
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// (See https://github.com/webpack-contrib/extract-text-webpack-plugin/issues/27)
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// However, our output is structured with css, js and media folders.
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// To have this structure working with relative paths, we have to use custom options.
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const extractTextPluginOptions = shouldUseRelativeAssetPaths
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? // Making sure that the publicPath goes back to to build folder.
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{ publicPath: Array(cssFilename.split("/").length).join("../") }
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: undefined
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// This is the production configuration.
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// It compiles slowly and is focused on producing a fast and minimal bundle.
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// The development configuration is different and lives in a separate file.
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module.exports = {
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// Don't attempt to continue if there are any errors.
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bail: true,
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// We generate sourcemaps in production. This is slow but gives good results.
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// You can exclude the *.map files from the build during deployment.
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devtool: "source-map",
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// In production, we only want to load the polyfills and the app code.
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entry: [require.resolve("./polyfills"), paths.appIndexJs],
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output: {
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// The build folder.
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path: paths.appBuild,
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// Generated JS file names (with nested folders).
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// There will be one main bundle, and one file per asynchronous chunk.
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// We don't currently advertise code splitting but Webpack supports it.
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filename: "_static/js/[name].[chunkhash:8].js",
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chunkFilename: "_static/js/[name].[chunkhash:8].chunk.js",
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// We inferred the "public path" (such as / or /my-project) from homepage.
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publicPath: publicPath
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},
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resolve: {
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// This allows you to set a fallback for where Webpack should look for modules.
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// We read `NODE_PATH` environment variable in `paths.js` and pass paths here.
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// We use `fallback` instead of `root` because we want `node_modules` to "win"
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// if there any conflicts. This matches Node resolution mechanism.
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// https://github.com/facebookincubator/create-react-app/issues/253
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fallback: paths.nodePaths,
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// These are the reasonable defaults supported by the Node ecosystem.
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// We also include JSX as a common component filename extension to support
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// some tools, although we do not recommend using it, see:
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// https://github.com/facebookincubator/create-react-app/issues/290
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extensions: [".js", ".json", ".jsx", ""],
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alias: {
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// Support React Native Web
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// https://www.smashingmagazine.com/2016/08/a-glimpse-into-the-future-with-react-native-for-web/
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"react-native": "react-native-web"
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}
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},
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module: {
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// First, run the linter.
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// It's important to do this before Babel processes the JS.
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preLoaders: [
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{
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test: /\.(js|jsx)$/,
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loader: "eslint",
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include: paths.appSrc
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}
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],
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loaders: [
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// ** ADDING/UPDATING LOADERS **
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// The "url" loader handles all assets unless explicitly excluded.
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// The `exclude` list *must* be updated with every change to loader extensions.
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// When adding a new loader, you must add its `test`
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// as a new entry in the `exclude` list in the "url" loader.
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// "url" loader embeds assets smaller than specified size as data URLs to avoid requests.
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// Otherwise, it acts like the "file" loader.
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{
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exclude: [/\.html$/, /\.(js|jsx)$/, /\.css$/, /\.json$/, /\.svg$/, /\.md$/],
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loader: "url",
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query: {
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limit: 10000,
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name: "_static/media/[name].[hash:8].[ext]"
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}
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},
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// Process JS with Babel.
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{
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test: /\.(js|jsx)$/,
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include: paths.appSrc,
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loader: "babel"
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},
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// The notation here is somewhat confusing.
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// "postcss" loader applies autoprefixer to our CSS.
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// "css" loader resolves paths in CSS and adds assets as dependencies.
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// "style" loader normally turns CSS into JS modules injecting <style>,
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// but unlike in development configuration, we do something different.
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// `ExtractTextPlugin` first applies the "postcss" and "css" loaders
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// (second argument), then grabs the result CSS and puts it into a
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// separate file in our build process. This way we actually ship
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// a single CSS file in production instead of JS code injecting <style>
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// tags. If you use code splitting, however, any async bundles will still
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// use the "style" loader inside the async code so CSS from them won't be
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// in the main CSS file.
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{
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test: /\.css$/,
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loader: ExtractTextPlugin.extract(
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"style",
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"css?importLoaders=1!postcss",
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extractTextPluginOptions
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)
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// Note: this won't work without `new ExtractTextPlugin()` in `plugins`.
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},
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// JSON is not enabled by default in Webpack but both Node and Browserify
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// allow it implicitly so we also enable it.
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{
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test: /\.json$/,
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loader: "json"
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},
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// "file" loader for svg
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{
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test: /\.svg$/,
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loader: "file",
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query: {
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name: "_static/media/[name].[hash:8].[ext]"
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}
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},
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// HTML loader for Markdown files.
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{
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test: /\.md$/,
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loader: "html!markdown"
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}
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// ** STOP ** Are you adding a new loader?
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// Remember to add the new extension(s) to the "url" loader exclusion list.
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]
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},
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// We use PostCSS for autoprefixing only.
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postcss: function() {
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return [
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autoprefixer({
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browsers: [
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">1%",
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"last 4 versions",
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"Firefox ESR",
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"not ie < 9" // React doesn't support IE8 anyway
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]
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})
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]
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},
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plugins: [
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// Makes some environment variables available in index.html.
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// The public URL is available as %PUBLIC_URL% in index.html, e.g.:
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// <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
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// In production, it will be an empty string unless you specify "homepage"
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// in `package.json`, in which case it will be the pathname of that URL.
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new InterpolateHtmlPlugin(env.raw),
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// Generates an `index.html` file with the <script> injected.
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new HtmlWebpackPlugin({
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inject: true,
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template: paths.appHtml,
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minify: {
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removeComments: true,
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collapseWhitespace: true,
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removeRedundantAttributes: true,
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useShortDoctype: true,
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removeEmptyAttributes: true,
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removeStyleLinkTypeAttributes: true,
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keepClosingSlash: true,
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minifyJS: true,
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minifyCSS: true,
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minifyURLs: true
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}
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}),
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// Makes some environment variables available to the JS code, for example:
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// if (process.env.NODE_ENV === 'production') { ... }. See `./env.js`.
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// It is absolutely essential that NODE_ENV was set to production here.
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// Otherwise React will be compiled in the very slow development mode.
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new webpack.DefinePlugin(env.stringified),
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// This helps ensure the builds are consistent if source hasn't changed:
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new webpack.optimize.OccurrenceOrderPlugin(),
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// Try to dedupe duplicated modules, if any:
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new webpack.optimize.DedupePlugin(),
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// Minify the code.
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new webpack.optimize.UglifyJsPlugin({
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compress: {
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screw_ie8: true, // React doesn't support IE8
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warnings: false
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},
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mangle: {
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screw_ie8: true
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},
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output: {
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comments: false,
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screw_ie8: true
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}
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}),
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// Note: this won't work without ExtractTextPlugin.extract(..) in `loaders`.
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new ExtractTextPlugin(cssFilename),
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// Generate a manifest file which contains a mapping of all asset filenames
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// to their corresponding output file so that tools can pick it up without
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// having to parse `index.html`.
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new ManifestPlugin({
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fileName: "asset-manifest.json"
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})
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],
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// Some libraries import Node modules but don't use them in the browser.
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// Tell Webpack to provide empty mocks for them so importing them works.
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node: {
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fs: "empty",
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net: "empty",
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tls: "empty"
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}
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}
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