215 lines
9.0 KiB
JavaScript
215 lines
9.0 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 CaseSensitivePathsPlugin = require("case-sensitive-paths-webpack-plugin")
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var InterpolateHtmlPlugin = require("react-dev-utils/InterpolateHtmlPlugin")
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var WatchMissingNodeModulesPlugin = require("react-dev-utils/WatchMissingNodeModulesPlugin")
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var getClientEnvironment = require("./env")
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var paths = require("./paths")
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// Webpack uses `publicPath` to determine where the app is being served from.
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// In development, we always serve from the root. This makes config easier.
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var 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_PATH%/xyz looks better than %PUBLIC_PATH%xyz.
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var publicUrl = ""
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// Get environment variables to inject into our app.
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var env = getClientEnvironment(publicUrl)
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// This is the development configuration.
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// It is focused on developer experience and fast rebuilds.
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// The production configuration is different and lives in a separate file.
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module.exports = {
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// You may want 'eval' instead if you prefer to see the compiled output in DevTools.
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// See the discussion in https://github.com/facebookincubator/create-react-app/issues/343.
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devtool: "cheap-module-source-map",
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// These are the "entry points" to our application.
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// This means they will be the "root" imports that are included in JS bundle.
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// The first two entry points enable "hot" CSS and auto-refreshes for JS.
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entry: [
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// Include an alternative client for WebpackDevServer. A client's job is to
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// connect to WebpackDevServer by a socket and get notified about changes.
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// When you save a file, the client will either apply hot updates (in case
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// of CSS changes), or refresh the page (in case of JS changes). When you
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// make a syntax error, this client will display a syntax error overlay.
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// Note: instead of the default WebpackDevServer client, we use a custom one
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// to bring better experience for Create React App users. You can replace
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// the line below with these two lines if you prefer the stock client:
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// require.resolve('webpack-dev-server/client') + '?/',
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// require.resolve('webpack/hot/dev-server'),
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require.resolve("react-dev-utils/webpackHotDevClient"),
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// We ship a few polyfills by default:
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require.resolve("./polyfills"),
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// Finally, this is your app's code:
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paths.appIndexJs
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// We include the app code last so that if there is a runtime error during
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// initialization, it doesn't blow up the WebpackDevServer client, and
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// changing JS code would still trigger a refresh.
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],
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output: {
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// Next line is not used in dev but WebpackDevServer crashes without it:
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path: paths.appBuild,
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// Add /* filename */ comments to generated require()s in the output.
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pathinfo: true,
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// This does not produce a real file. It's just the virtual path that is
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// served by WebpackDevServer in development. This is the JS bundle
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// containing code from all our entry points, and the Webpack runtime.
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filename: "_static/js/bundle.js",
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// This is the URL that app is served from. We use "/" in development.
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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)$/,
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loader: "eslint",
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include: paths.appSrc
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}
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],
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loaders: [
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// ** ADDING/UPDATING LOADERS **
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// The "url" loader handles all assets unless explicitly excluded.
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// The `exclude` list *must* be updated with every change to loader extensions.
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// When adding a new loader, you must add its `test`
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// as a new entry in the `exclude` list for "url" loader.
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// "url" loader embeds assets smaller than specified size as data URLs to avoid requests.
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// Otherwise, it acts like the "file" loader.
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{
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exclude: [
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/\.html$/,
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// We have to write /\.(js|jsx)(\?.*)?$/ rather than just /\.(js|jsx)$/
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// because you might change the hot reloading server from the custom one
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// to Webpack's built-in webpack-dev-server/client?/, which would not
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// get properly excluded by /\.(js|jsx)$/ because of the query string.
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// Webpack 2 fixes this, but for now we include this hack.
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// https://github.com/facebookincubator/create-react-app/issues/1713
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/\.(js|jsx)(\?.*)?$/,
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/\.css$/,
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/\.json$/,
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/\.svg$/,
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/\.md$/
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],
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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)$/,
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include: paths.appSrc,
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loader: "babel",
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query: {
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// This is a feature of `babel-loader` for webpack (not Babel itself).
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// It enables caching results in ./node_modules/.cache/babel-loader/
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// directory for faster rebuilds.
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cacheDirectory: true
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}
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},
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// "postcss" loader applies autoprefixer to our CSS.
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// "css" loader resolves paths in CSS and adds assets as dependencies.
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// "style" loader turns CSS into JS modules that inject <style> tags.
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// In production, we use a plugin to extract that CSS to a file, but
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// in development "style" loader enables hot editing of CSS.
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{
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test: /\.css$/,
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loader: "style!css?importLoaders=1!postcss"
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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 development, this will be an empty string.
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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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}),
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// Makes some environment variables available to the JS code, for example:
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// if (process.env.NODE_ENV === 'development') { ... }. See `./env.js`.
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new webpack.DefinePlugin(env.stringified),
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// This is necessary to emit hot updates (currently CSS only):
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new webpack.HotModuleReplacementPlugin(),
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// Watcher doesn't work well if you mistype casing in a path so we use
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// a plugin that prints an error when you attempt to do this.
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// See https://github.com/facebookincubator/create-react-app/issues/240
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new CaseSensitivePathsPlugin(),
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// If you require a missing module and then `npm install` it, you still have
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// to restart the development server for Webpack to discover it. This plugin
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// makes the discovery automatic so you don't have to restart.
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// See https://github.com/facebookincubator/create-react-app/issues/186
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new WatchMissingNodeModulesPlugin(paths.appNodeModules)
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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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