import _ from 'lodash' import chokidar from 'chokidar' import fs, { remove, readFile, writeFile, mkdirp, utimes, existsSync } from 'fs-extra' import hash from 'hash-sum' import pify from 'pify' import webpack from 'webpack' import serialize from 'serialize-javascript' import { join, resolve, basename, extname, dirname } from 'path' import MFS from 'memory-fs' import webpackDevMiddleware from 'webpack-dev-middleware' import webpackHotMiddleware from 'webpack-hot-middleware' import { r, wp, wChunk, createRoutes, sequence, relativeTo, isPureObject } from 'utils' import Debug from 'debug' import Glob from 'glob' import clientWebpackConfig from './webpack/client.config.js' import serverWebpackConfig from './webpack/server.config.js' import dllWebpackConfig from './webpack/dll.config.js' import vueLoaderConfig from './webpack/vue-loader.config' import styleLoader from './webpack/style-loader' const debug = Debug('nuxt:build') debug.color = 2 // Force green color const glob = pify(Glob) export default class Builder { constructor(nuxt) { this.nuxt = nuxt this.isStatic = false // Flag to know if the build is for a generated app this.options = nuxt.options // Fields that set on build this.compiler = null this.webpackDevMiddleware = null this.webpackHotMiddleware = null // Mute stats on dev this.webpackStats = this.options.dev ? false : { chunks: false, children: false, modules: false, colors: true, excludeAssets: [ /.map$/, /index\..+\.html$/, /vue-ssr-client-manifest.json/ ] } // Helper to resolve build paths this.relativeToBuild = (...args) => relativeTo(this.options.buildDir, ...args) // Bind styleLoader and vueLoader this.styleLoader = styleLoader.bind(this) this.vueLoader = vueLoaderConfig.bind(this) this._buildStatus = STATUS.INITIAL } get plugins() { return this.options.plugins.map((p, i) => { if (typeof p === 'string') p = { src: p } return { src: this.nuxt.resolvePath(p.src), ssr: (p.ssr !== false), name: basename(p.src, extname(p.src)).replace(/[^a-zA-Z?\d\s:]/g, '') } }) } vendor() { return [ 'vue', 'vue-router', 'vue-meta', this.options.store && 'vuex' ].concat(this.options.build.vendor).filter(v => v) } vendorEntries() { // Used for dll const vendor = this.vendor() const vendorEntries = {} vendor.forEach(v => { try { require.resolve(v) vendorEntries[v] = [ v ] } catch (e) { // Ignore } }) return vendorEntries } forGenerate() { this.isStatic = true } async build() { // Avoid calling build() method multiple times when dev:true /* istanbul ignore if */ if (this._buildStatus === STATUS.BUILD_DONE && this.options.dev) { return this } // If building /* istanbul ignore if */ if (this._buildStatus === STATUS.BUILDING) { return new Promise((resolve) => { setTimeout(() => { resolve(this.build()) }, 1000) }) } this._buildStatus = STATUS.BUILDING // Wait for nuxt ready await this.nuxt.ready() // Call before hook await this.nuxt.callHook('build:before', this, this.options.build) // Babel options this.babelOptions = _.defaults(this.options.build.babel, { babelrc: false, cacheDirectory: !!this.options.dev }) if (!this.babelOptions.babelrc && !this.babelOptions.presets) { this.babelOptions.presets = [ [require.resolve('babel-preset-vue-app'), { targets: { ie: 9, uglify: true } }] ] } // Map postcss plugins into instances on object mode once if (isPureObject(this.options.build.postcss)) { if (isPureObject(this.options.build.postcss.plugins)) { this.options.build.postcss.plugins = Object.keys(this.options.build.postcss.plugins) .map(p => { const plugin = require(p) const opts = this.options.build.postcss.plugins[p] if (opts === false) return // Disabled const instance = plugin(opts) return instance }).filter(e => e) } } // Check if pages dir exists and warn if not this._nuxtPages = typeof this.options.build.createRoutes !== 'function' if (this._nuxtPages) { if (!fs.existsSync(join(this.options.srcDir, 'pages'))) { let dir = this.options.srcDir if (fs.existsSync(join(this.options.srcDir, '..', 'pages'))) { throw new Error(`No \`pages\` directory found in ${dir}. Did you mean to run \`nuxt\` in the parent (\`../\`) directory?`) } else { throw new Error(`Couldn't find a \`pages\` directory in ${dir}. Please create one under the project root`) } } } debug(`App root: ${this.options.srcDir}`) debug(`Generating ${this.options.buildDir} files...`) // Create .nuxt/, .nuxt/components and .nuxt/dist folders await remove(r(this.options.buildDir)) await mkdirp(r(this.options.buildDir, 'components')) if (!this.options.dev) { await mkdirp(r(this.options.buildDir, 'dist')) } // Generate routes and interpret the template files await this.generateRoutesAndFiles() // Start webpack build await this.webpackBuild() // Flag to set that building is done this._buildStatus = STATUS.BUILD_DONE // Call done hook await this.nuxt.callHook('build:done', this) return this } async generateRoutesAndFiles() { debug('Generating files...') // -- Templates -- let templatesFiles = [ 'App.js', 'client.js', 'index.js', 'middleware.js', 'router.js', 'server.js', 'utils.js', 'empty.js', 'components/nuxt-error.vue', 'components/nuxt-loading.vue', 'components/nuxt-child.js', 'components/nuxt-link.js', 'components/nuxt.js', 'components/no-ssr.js', 'views/app.template.html', 'views/error.html' ] const templateVars = { options: this.options, messages: this.options.messages, uniqBy: _.uniqBy, isDev: this.options.dev, debug: this.options.debug, mode: this.options.mode, router: this.options.router, env: this.options.env, head: this.options.head, middleware: fs.existsSync(join(this.options.srcDir, 'middleware')), store: this.options.store, css: this.options.css, plugins: this.plugins, appPath: './App.js', layouts: Object.assign({}, this.options.layouts), loading: typeof this.options.loading === 'string' ? this.relativeToBuild(this.options.srcDir, this.options.loading) : this.options.loading, transition: this.options.transition, layoutTransition: this.options.layoutTransition, components: { ErrorPage: this.options.ErrorPage ? this.relativeToBuild(this.options.ErrorPage) : null } } // -- Layouts -- if (fs.existsSync(resolve(this.options.srcDir, 'layouts'))) { const layoutsFiles = await glob('layouts/**/*.vue', { cwd: this.options.srcDir }) let hasErrorLayout = false layoutsFiles.forEach((file) => { let name = file.split('/').slice(1).join('/').replace(/\.vue$/, '') if (name === 'error') { hasErrorLayout = true return } templateVars.layouts[name] = this.relativeToBuild(this.options.srcDir, file) }) if (!templateVars.components.ErrorPage && hasErrorLayout) { templateVars.components.ErrorPage = this.relativeToBuild(this.options.srcDir, 'layouts/error.vue') } } // If no default layout, create its folder and add the default folder if (!templateVars.layouts.default) { await mkdirp(r(this.options.buildDir, 'layouts')) templatesFiles.push('layouts/default.vue') templateVars.layouts.default = './layouts/default.vue' } // -- Routes -- debug('Generating routes...') // If user defined a custom method to create routes if (this._nuxtPages) { // Use nuxt.js createRoutes bases on pages/ const files = await glob('pages/**/*.vue', { cwd: this.options.srcDir }) templateVars.router.routes = createRoutes(files, this.options.srcDir) } else { templateVars.router.routes = this.options.build.createRoutes(this.options.srcDir) } await this.nuxt.callHook('build:extendRoutes', templateVars.router.routes, r) // router.extendRoutes method if (typeof this.options.router.extendRoutes === 'function') { // let the user extend the routes const extendedRoutes = this.options.router.extendRoutes(templateVars.router.routes, r) // Only overwrite routes when something is returned for backwards compatibility if (extendedRoutes !== undefined) { templateVars.router.routes = extendedRoutes } } // Make routes accessible for other modules and webpack configs this.routes = templateVars.router.routes // -- Store -- // Add store if needed if (this.options.store) { templatesFiles.push('store.js') } // Resolve template files const customTemplateFiles = this.options.build.templates.map(t => t.dst || basename(t.src || t)) templatesFiles = templatesFiles.map(file => { // Skip if custom file was already provided in build.templates[] if (customTemplateFiles.indexOf(file) !== -1) { return } // Allow override templates using a file with same name in ${srcDir}/app const customPath = r(this.options.srcDir, 'app', file) const customFileExists = fs.existsSync(customPath) return { src: customFileExists ? customPath : r(this.options.nuxtAppDir, file), dst: file, custom: customFileExists } }).filter(i => !!i) // -- Custom templates -- // Add custom template files templatesFiles = templatesFiles.concat(this.options.build.templates.map(t => { return Object.assign({ src: r(this.options.srcDir, t.src || t), dst: t.dst || basename(t.src || t), custom: true }, t) })) // -- Loading indicator -- if (this.options.loadingIndicator.name) { const indicatorPath1 = resolve(this.options.nuxtAppDir, 'views/loading', this.options.loadingIndicator.name + '.html') const indicatorPath2 = this.nuxt.resolvePath(this.options.loadingIndicator.name) const indicatorPath = existsSync(indicatorPath1) ? indicatorPath1 : (existsSync(indicatorPath2) ? indicatorPath2 : null) if (indicatorPath) { templatesFiles.push({ src: indicatorPath, dst: 'loading.html', options: this.options.loadingIndicator }) } else { console.error(`Could not fetch loading indicator: ${this.options.loadingIndicator.name}`) // eslint-disable-line no-console } } await this.nuxt.callHook('build:templates', { templatesFiles, templateVars, resolve: r }) // Interpret and move template files to .nuxt/ await Promise.all(templatesFiles.map(async ({ src, dst, options, custom }) => { // Add template to watchers this.options.build.watch.push(src) // Render template to dst const fileContent = await readFile(src, 'utf8') let content try { const template = _.template(fileContent, { imports: { serialize, hash, r, wp, wChunk, resolvePath: this.nuxt.resolvePath.bind(this.nuxt), relativeToBuild: this.relativeToBuild } }) content = template(Object.assign({}, templateVars, { options: options || {}, custom, src, dst })) } catch (err) { throw new Error(`Could not compile template ${src}: ${err.message}`) } const path = r(this.options.buildDir, dst) // Ensure parent dir exits await mkdirp(dirname(path)) // Write file await writeFile(path, content, 'utf8') // Fix webpack loop (https://github.com/webpack/watchpack/issues/25#issuecomment-287789288) const dateFS = Date.now() / 1000 - 1000 return utimes(path, dateFS, dateFS) })) } async webpackBuild() { debug('Building files...') const compilersOptions = [] // Client const clientConfig = clientWebpackConfig.call(this) compilersOptions.push(clientConfig) // Server let serverConfig = null if (this.options.build.ssr) { serverConfig = serverWebpackConfig.call(this) compilersOptions.push(serverConfig) } // Alias plugins to their real path this.plugins.forEach(p => { const src = this.relativeToBuild(p.src) // Client config if (!clientConfig.resolve.alias[p.name]) { clientConfig.resolve.alias[p.name] = src } // Server config if (serverConfig && !serverConfig.resolve.alias[p.name]) { // Alias to noop for ssr:false plugins serverConfig.resolve.alias[p.name] = p.ssr ? src : './empty.js' } }) // Make a dll plugin after compile to make nuxt dev builds faster if (this.options.build.dll && this.options.dev) { compilersOptions.push(dllWebpackConfig.call(this, clientConfig)) } // Simulate webpack multi compiler interface // Separate compilers are simpler, safer and faster this.compilers = [] // Initialize shared FS and Cache const sharedFS = this.options.dev && new MFS() const sharedCache = {} // Initialize compilers compilersOptions.forEach(compilersOption => { const compiler = webpack(compilersOption) // In dev, write files in memory FS (except for DLL) if (sharedFS && !compiler.name.includes('-dll')) { compiler.outputFileSystem = sharedFS } compiler.cache = sharedCache this.compilers.push(compiler) }) // Start Builds await sequence(this.compilers, (compiler) => new Promise(async (resolve, reject) => { const name = compiler.options.name await this.nuxt.callHook('build:compile', { name, compiler }) // Resolve only when compiler emit done event compiler.plugin('done', async (stats) => { await this.nuxt.callHook('build:compiled', { name, compiler, stats }) process.nextTick(resolve) }) // --- Dev Build --- if (this.options.dev) { // Client Build, watch is started by dev-middleware if (compiler.options.name === 'client') { return this.webpackDev(compiler) } // DLL build, should run only once if (compiler.options.name.includes('-dll')) { compiler.run((err, stats) => { if (err) return reject(err) debug('[DLL] updated') }) return } // Server, build and watch for changes compiler.watch(this.options.watchers.webpack, (err) => { /* istanbul ignore if */ if (err) return reject(err) }) return } // --- Production Build --- compiler.run((err, stats) => { /* istanbul ignore if */ if (err) { console.error(err) // eslint-disable-line no-console return reject(err) } // Show build stats for production console.log(stats.toString(this.webpackStats)) // eslint-disable-line no-console /* istanbul ignore if */ if (stats.hasErrors()) { return reject(new Error('Webpack build exited with errors')) } }) })) // Reload renderer if available if (this.nuxt.renderer) { this.nuxt.renderer.loadResources(sharedFS || fs) } } webpackDev(compiler) { debug('Adding webpack middleware...') // Create webpack dev middleware this.webpackDevMiddleware = pify(webpackDevMiddleware(compiler, Object.assign({ publicPath: this.options.build.publicPath, stats: this.webpackStats, noInfo: true, quiet: true, watchOptions: this.options.watchers.webpack }, this.options.build.devMiddleware))) this.webpackHotMiddleware = pify(webpackHotMiddleware(compiler, Object.assign({ log: false, heartbeat: 10000 }, this.options.build.hotMiddleware))) // Inject to renderer instance if (this.nuxt.renderer) { this.nuxt.renderer.webpackDevMiddleware = this.webpackDevMiddleware this.nuxt.renderer.webpackHotMiddleware = this.webpackHotMiddleware } // Stop webpack middleware on nuxt.close() this.nuxt.hook('close', () => new Promise(resolve => { this.webpackDevMiddleware.close(() => resolve()) })) // Start watching files this.watchFiles() } watchFiles() { const patterns = [ r(this.options.srcDir, 'layouts'), r(this.options.srcDir, 'store'), r(this.options.srcDir, 'middleware'), r(this.options.srcDir, 'layouts/*.vue'), r(this.options.srcDir, 'layouts/**/*.vue') ] if (this._nuxtPages) { patterns.push(r(this.options.srcDir, 'pages')) patterns.push(r(this.options.srcDir, 'pages/*.vue')) patterns.push(r(this.options.srcDir, 'pages/**/*.vue')) } const options = Object.assign({}, this.options.watchers.chokidar, { ignoreInitial: true }) /* istanbul ignore next */ const refreshFiles = _.debounce(() => this.generateRoutesAndFiles(), 200) // Watch for src Files let filesWatcher = chokidar.watch(patterns, options) .on('add', refreshFiles) .on('unlink', refreshFiles) // Watch for custom provided files let customFilesWatcher = chokidar.watch(_.uniq(this.options.build.watch), options) .on('change', refreshFiles) // Stop watching on nuxt.close() this.nuxt.hook('close', () => { filesWatcher.close() customFilesWatcher.close() }) } } const STATUS = { INITIAL: 1, BUILD_DONE: 2, BUILDING: 3 }