import { resolve, join } from 'path' import { createHash } from 'crypto' import { existsSync } from 'fs' import webpack from 'webpack' import glob from 'glob-promise' import WriteFilePlugin from 'write-file-webpack-plugin' import FriendlyErrorsWebpackPlugin from 'friendly-errors-webpack-plugin' import UnlinkFilePlugin from './plugins/unlink-file-plugin' import WatchPagesPlugin from './plugins/watch-pages-plugin' import WatchRemoveEventPlugin from './plugins/watch-remove-event-plugin' import DynamicEntryPlugin from './plugins/dynamic-entry-plugin' import DetachPlugin from './plugins/detach-plugin' import JsonPagesPlugin from './plugins/json-pages-plugin' import getConfig from '../config' const documentPage = join('pages', '_document.js') const defaultPages = [ '_error.js', '_error-debug.js', '_document.js' ] export default async function createCompiler (dir, { dev = false, quiet = false } = {}) { dir = resolve(dir) const config = getConfig(dir) const pages = await glob('pages/**/*.js', { cwd: dir }) const entry = { 'main.js': dev ? require.resolve('../../client/next-dev') : require.resolve('../../client/next') } const defaultEntries = dev ? [join(__dirname, '..', '..', 'client/webpack-hot-middleware-client')] : [] for (const p of pages) { entry[join('bundles', p)] = defaultEntries.concat([`./${p}?entry`]) } const nextPagesDir = join(__dirname, '..', '..', 'pages') const interpolateNames = new Map() for (const p of defaultPages) { const entryName = join('bundles', 'pages', p) const path = join(nextPagesDir, p) if (!entry[entryName]) { entry[entryName] = defaultEntries.concat([path + '?entry']) } interpolateNames.set(path, `dist/pages/${p}`) } const nextNodeModulesDir = join(__dirname, '..', '..', '..', 'node_modules') const minChunks = pages.filter((p) => p !== documentPage).length const plugins = [ new webpack.LoaderOptionsPlugin({ options: { context: dir, customInterpolateName (url, name, opts) { return interpolateNames.get(this.resourcePath) || url } } }), new WriteFilePlugin({ exitOnErrors: false, log: false, // required not to cache removed files useHashIndex: false }), new webpack.optimize.CommonsChunkPlugin({ name: 'commons', filename: 'commons.js', minChunks: Math.max(2, minChunks) }), new JsonPagesPlugin() ] if (dev) { plugins.push( new webpack.HotModuleReplacementPlugin(), new webpack.NoErrorsPlugin(), new DetachPlugin(), new DynamicEntryPlugin(), new UnlinkFilePlugin(), new WatchRemoveEventPlugin(), new WatchPagesPlugin(dir) ) if (!quiet) { plugins.push(new FriendlyErrorsWebpackPlugin()) } } else { plugins.push( new webpack.DefinePlugin({ 'process.env.NODE_ENV': JSON.stringify('production') }), new webpack.optimize.UglifyJsPlugin({ compress: { warnings: false }, sourceMap: false }) ) } const mainBabelOptions = { babelrc: true, cacheDirectory: true, sourceMaps: dev ? 'both' : false, presets: [] } const hasBabelRc = existsSync(join(dir, '.babelrc')) if (hasBabelRc) { console.log('> Using .babelrc defined in your app root') } else { mainBabelOptions.presets.push(require.resolve('./babel/preset')) } const rules = (dev ? [{ test: /\.js(\?[^?]*)?$/, loader: 'hot-self-accept-loader', include: [ join(dir, 'pages'), nextPagesDir ] }, { test: /\.js(\?[^?]*)?$/, loader: 'react-hot-loader/webpack', exclude: /node_modules/ }] : []) .concat([{ test: /\.json$/, loader: 'json-loader' }, { test: /\.(js|json)(\?[^?]*)?$/, loader: 'emit-file-loader', include: [dir, nextPagesDir], exclude (str) { return /node_modules/.test(str) && str.indexOf(nextPagesDir) !== 0 }, options: { name: 'dist/[path][name].[ext]' } }, { loader: 'babel-loader', include: nextPagesDir, options: { babelrc: false, cacheDirectory: true, sourceMaps: dev ? 'both' : false, plugins: [ [ require.resolve('babel-plugin-module-resolver'), { alias: { 'ansi-html': require.resolve('ansi-html'), 'styled-jsx/style': require.resolve('styled-jsx/style') } } ] ] } }, { test: /\.js(\?[^?]*)?$/, loader: 'babel-loader', include: [dir, nextPagesDir], exclude (str) { return /node_modules/.test(str) && str.indexOf(nextPagesDir) !== 0 }, query: mainBabelOptions }]) let webpackConfig = { context: dir, entry, output: { path: join(dir, '.next'), filename: '[name]', libraryTarget: 'commonjs2', publicPath: '/_webpack/', strictModuleExceptionHandling: true, devtoolModuleFilenameTemplate ({ resourcePath }) { const hash = createHash('sha1') hash.update(Date.now() + '') const id = hash.digest('hex').slice(0, 7) // append hash id for cache busting return `webpack:///${resourcePath}?${id}` } }, resolve: { modules: [ nextNodeModulesDir, 'node_modules' ].concat( (process.env.NODE_PATH || '') .split(process.platform === 'win32' ? ';' : ':') .filter((p) => !!p) ) }, resolveLoader: { modules: [ nextNodeModulesDir, 'node_modules', join(__dirname, 'loaders') ] }, plugins, module: { rules }, devtool: dev ? 'inline-source-map' : false, performance: { hints: false } } if (config.webpack) { console.log('> Using "webpack" config function defined in next.config.js.') webpackConfig = await config.webpack(webpackConfig, { dev }) } return webpack(webpackConfig) }