Nuxt/packages/builder/src/builder.js

578 lines
17 KiB
JavaScript

import path from 'path'
import chokidar from 'chokidar'
import consola from 'consola'
import fsExtra from 'fs-extra'
import Glob from 'glob'
import hash from 'hash-sum'
import pify from 'pify'
import serialize from 'serialize-javascript'
import upath from 'upath'
import concat from 'lodash/concat'
import debounce from 'lodash/debounce'
import map from 'lodash/map'
import omit from 'lodash/omit'
import template from 'lodash/template'
import uniq from 'lodash/uniq'
import uniqBy from 'lodash/uniqBy'
import values from 'lodash/values'
import devalue from '@nuxtjs/devalue'
import {
r,
wp,
wChunk,
createRoutes,
relativeTo,
waitFor,
determineGlobals,
stripWhitespace,
isString
} from '@nuxt/common'
import BuildContext from './context'
const glob = pify(Glob)
export default class Builder {
constructor(nuxt, bundleBuilder) {
this.nuxt = nuxt
this.plugins = []
this.options = nuxt.options
this.globals = determineGlobals(nuxt.options.globalName, nuxt.options.globals)
this.watchers = {
files: null,
custom: null,
restart: null
}
// Helper to resolve build paths
this.relativeToBuild = (...args) =>
relativeTo(this.options.buildDir, ...args)
this._buildStatus = STATUS.INITIAL
// Hooks for watch lifecycle
if (this.options.dev) {
// Start watching after initial render
this.nuxt.hook('build:done', () => {
consola.info('Waiting for file changes')
this.watchClient()
})
// Stop watching on nuxt.close()
this.nuxt.hook('close', () => this.unwatch())
}
if (this.options.build.analyze) {
this.nuxt.hook('build:done', () => {
consola.warn('Notice: Please do not deploy bundles built with analyze mode, it\'s only for analyzing purpose.')
})
}
// Resolve template
this.template = this.options.build.template || '@nuxt/vue-app'
if (typeof this.template === 'string') {
this.template = this.nuxt.resolver.requireModule(this.template)
}
// if(!this.options.dev) {
// TODO: enable again when unsafe concern resolved.(common/options.js:42)
// this.nuxt.hook('build:done', () => this.generateConfig())
// }
this.bundleBuilder = this.getBundleBuilder(bundleBuilder)
}
getBundleBuilder(BundleBuilder) {
if (typeof BundleBuilder === 'object') {
return BundleBuilder
}
const context = new BuildContext(this)
if (typeof BundleBuilder !== 'function') {
BundleBuilder = require('@nuxt/webpack').BundleBuilder
}
return new BundleBuilder(context)
}
normalizePlugins() {
return uniqBy(
this.options.plugins.map((p) => {
if (typeof p === 'string') p = { src: p }
const pluginBaseName = path.basename(p.src, path.extname(p.src)).replace(
/[^a-zA-Z?\d\s:]/g,
''
)
return {
src: this.nuxt.resolver.resolveAlias(p.src),
ssr: p.ssr !== false,
name: 'nuxt_plugin_' + pluginBaseName + '_' + hash(p.src)
}
}),
p => p.name
)
}
resolvePlugins() {
// Check plugins exist then set alias to their real path
return Promise.all(this.plugins.map(async (p) => {
const ext = path.extname(p.src) ? '' : '{.+([^.]),/index.+([^.])}'
const pluginFiles = await glob(`${p.src}${ext}`)
if (!pluginFiles || pluginFiles.length === 0) {
throw new Error(`Plugin not found: ${p.src}`)
} else if (pluginFiles.length > 1) {
consola.warn({
message: `Found ${pluginFiles.length} plugins that match the configuration, suggest to specify extension:`,
additional: '\n' + pluginFiles.map(x => `- ${x}`).join('\n')
})
}
p.src = this.relativeToBuild(p.src)
}))
}
forGenerate() {
this.bundleBuilder.forGenerate()
}
async build() {
// Avoid calling build() method multiple times when dev:true
/* istanbul ignore if */
if (this._buildStatus === STATUS.BUILD_DONE && this.options.dev) {
return this
}
// If building
/* istanbul ignore if */
if (this._buildStatus === STATUS.BUILDING) {
await waitFor(1000)
return this.build()
}
this._buildStatus = STATUS.BUILDING
if (this.options.dev) {
consola.info('Preparing project for development')
consola.info('Initial build may take a while')
} else {
consola.info('Production build')
}
// Wait for nuxt ready
await this.nuxt.ready()
// Call before hook
await this.nuxt.callHook('build:before', this, this.options.build)
// Check if pages dir exists and warn if not
this._nuxtPages = typeof this.options.build.createRoutes !== 'function'
if (this._nuxtPages) {
if (!fsExtra.existsSync(path.join(this.options.srcDir, this.options.dir.pages))) {
const dir = this.options.srcDir
if (fsExtra.existsSync(path.join(this.options.srcDir, '..', this.options.dir.pages))) {
throw new Error(
`No \`${this.options.dir.pages}\` directory found in ${dir}. Did you mean to run \`nuxt\` in the parent (\`../\`) directory?`
)
} else {
this._defaultPage = true
consola.warn(`No \`${this.options.dir.pages}\` directory found in ${dir}. Using the default built-in page.`)
}
}
}
consola.success('Builder initialized')
consola.debug(`App root: ${this.options.srcDir}`)
// Create .nuxt/, .nuxt/components and .nuxt/dist folders
await fsExtra.remove(r(this.options.buildDir))
const buildDirs = [r(this.options.buildDir, 'components')]
if (!this.options.dev) {
buildDirs.push(
r(this.options.buildDir, 'dist', 'client'),
r(this.options.buildDir, 'dist', 'server')
)
}
await Promise.all(buildDirs.map(dir => fsExtra.mkdirp(dir)))
// Generate routes and interpret the template files
await this.generateRoutesAndFiles()
await this.resolvePlugins()
// Start bundle build: webpack, rollup, parcel...
await this.bundleBuilder.build()
// 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() {
consola.debug(`Generating nuxt files`)
// Plugins
this.plugins = Array.from(this.normalizePlugins())
// -- Templates --
let templatesFiles = Array.from(this.template.templatesFiles)
const templateVars = {
options: this.options,
extensions: this.options.extensions
.map(ext => ext.replace(/^\./, ''))
.join('|'),
messages: this.options.messages,
splitChunks: this.options.build.splitChunks,
uniqBy,
isDev: this.options.dev,
isTest: this.options.test,
debug: this.options.debug,
vue: { config: this.options.vue.config },
mode: this.options.mode,
router: this.options.router,
env: this.options.env,
head: this.options.head,
middleware: fsExtra.existsSync(path.join(this.options.srcDir, this.options.dir.middleware)),
store: this.options.store,
globalName: this.options.globalName,
globals: this.globals,
css: this.options.css,
plugins: this.plugins,
appPath: './App.js',
ignorePrefix: this.options.ignorePrefix,
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,
dir: this.options.dir,
components: {
ErrorPage: this.options.ErrorPage
? this.relativeToBuild(this.options.ErrorPage)
: null
}
}
// -- Layouts --
if (fsExtra.existsSync(path.resolve(this.options.srcDir, this.options.dir.layouts))) {
const layoutsFiles = await glob(`${this.options.dir.layouts}/**/*.{vue,js}`, {
cwd: this.options.srcDir,
ignore: this.options.ignore
})
layoutsFiles.forEach((file) => {
const name = file
.replace(new RegExp(`^${this.options.dir.layouts}/`), '')
.replace(/\.(vue|js)$/, '')
if (name === 'error') {
if (!templateVars.components.ErrorPage) {
templateVars.components.ErrorPage = this.relativeToBuild(
this.options.srcDir,
file
)
}
return
}
if (!templateVars.layouts[name] || /\.vue$/.test(file)) {
templateVars.layouts[name] = this.relativeToBuild(
this.options.srcDir,
file
)
}
})
}
// If no default layout, create its folder and add the default folder
if (!templateVars.layouts.default) {
await fsExtra.mkdirp(r(this.options.buildDir, 'layouts'))
templatesFiles.push('layouts/default.vue')
templateVars.layouts.default = './layouts/default.vue'
}
// -- Routes --
consola.debug('Generating routes...')
if (this._defaultPage) {
templateVars.router.routes = createRoutes(
['index.vue'],
this.template.templatesDir + '/pages'
)
} else if (this._nuxtPages) {
// Use nuxt.js createRoutes bases on pages/
const files = {}
; (await glob(`${this.options.dir.pages}/**/*.{vue,js}`, {
cwd: this.options.srcDir,
ignore: this.options.ignore
})).forEach((f) => {
const key = f.replace(/\.(js|vue)$/, '')
if (/\.vue$/.test(f) || !files[key]) {
files[key] = f.replace(/('|")/g, '\\$1')
}
})
templateVars.router.routes = createRoutes(
Object.values(files),
this.options.srcDir,
this.options.dir.pages
)
} else { // If user defined a custom method to create routes
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 || path.basename(t.src || t)
)
templatesFiles = templatesFiles
.map((file) => {
// Skip if custom file was already provided in build.templates[]
if (customTemplateFiles.includes(file)) {
return
}
// Allow override templates using a file with same name in ${srcDir}/app
const customPath = r(this.options.srcDir, 'app', file)
const customFileExists = fsExtra.existsSync(customPath)
return {
src: customFileExists ? customPath : r(this.template.templatesDir, file),
dst: file,
custom: customFileExists
}
})
.filter(Boolean)
// -- 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 || path.basename(t.src || t),
custom: true
},
t
)
})
)
// -- Loading indicator --
if (this.options.loadingIndicator.name) {
const indicatorPath1 = path.resolve(
this.template.templatesDir,
'views/loading',
this.options.loadingIndicator.name + '.html'
)
const indicatorPath2 = this.nuxt.resolver.resolveAlias(
this.options.loadingIndicator.name
)
const indicatorPath = fsExtra.existsSync(indicatorPath1)
? indicatorPath1
: fsExtra.existsSync(indicatorPath2) ? indicatorPath2 : null
if (indicatorPath) {
templatesFiles.push({
src: indicatorPath,
dst: 'loading.html',
options: this.options.loadingIndicator
})
} else {
/* istanbul ignore next */
// eslint-disable-next-line no-console
console.error(
`Could not fetch loading indicator: ${
this.options.loadingIndicator.name
}`
)
}
}
await this.nuxt.callHook('build:templates', {
templatesFiles,
templateVars,
resolve: r
})
// Prepare template options
let lodash = null
const templateOptions = {
imports: {
serialize,
devalue,
hash,
r,
wp,
wChunk,
resolvePath: this.nuxt.resolver.resolvePath,
resolveAlias: this.nuxt.resolver.resolveAlias,
relativeToBuild: this.relativeToBuild,
// Legacy support: https://github.com/nuxt/nuxt.js/issues/4350
_: new Proxy({}, {
get(target, prop) {
if (!lodash) {
consola.warn('Avoid using _ inside templates')
lodash = require('lodash')
}
return lodash[prop]
}
})
},
interpolate: /<%=([\s\S]+?)%>/g
}
// 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 fsExtra.readFile(src, 'utf8')
let content
try {
const templateFunction = template(fileContent, templateOptions)
content = stripWhitespace(
templateFunction(
Object.assign({}, templateVars, {
options: options || {},
custom,
src,
dst
})
)
)
} catch (err) {
/* istanbul ignore next */
throw new Error(`Could not compile template ${src}: ${err.message}`)
}
const _path = r(this.options.buildDir, dst)
// Ensure parent dir exits and write file
await fsExtra.outputFile(_path, content, 'utf8')
})
)
consola.success('Nuxt files generated')
}
// TODO: Uncomment when generateConfig enabled again
// async generateConfig() /* istanbul ignore next */ {
// const config = path.resolve(this.options.buildDir, 'build.config.js')
// const options = omit(this.options, Options.unsafeKeys)
// await fsExtra.writeFile(
// config,
// `export default ${JSON.stringify(options, null, ' ')}`,
// 'utf8'
// )
// }
watchClient() {
const src = this.options.srcDir
let patterns = [
r(src, this.options.dir.layouts),
r(src, this.options.dir.store),
r(src, this.options.dir.middleware),
r(src, `${this.options.dir.layouts}/*.{vue,js}`),
r(src, `${this.options.dir.layouts}/**/*.{vue,js}`)
]
if (this._nuxtPages) {
patterns.push(
r(src, this.options.dir.pages),
r(src, `${this.options.dir.pages}/*.{vue,js}`),
r(src, `${this.options.dir.pages}/**/*.{vue,js}`)
)
}
patterns = map(patterns, upath.normalizeSafe)
const options = this.options.watchers.chokidar
/* istanbul ignore next */
const refreshFiles = debounce(() => this.generateRoutesAndFiles(), 200)
// Watch for src Files
this.watchers.files = chokidar
.watch(patterns, options)
.on('add', refreshFiles)
.on('unlink', refreshFiles)
// Watch for custom provided files
let customPatterns = concat(
this.options.build.watch,
...values(omit(this.options.build.styleResources, ['options']))
)
customPatterns = map(uniq(customPatterns), upath.normalizeSafe)
this.watchers.custom = chokidar
.watch(customPatterns, options)
.on('change', refreshFiles)
}
watchServer() {
const nuxtRestartWatch = concat(
this.options.serverMiddleware
.filter(isString)
.map(this.nuxt.resolver.resolveAlias),
this.options.watch.map(this.nuxt.resolver.resolveAlias),
path.join(this.options.rootDir, 'nuxt.config.js')
)
this.watchers.restart = chokidar
.watch(nuxtRestartWatch, this.options.watchers.chokidar)
.on('change', (_path) => {
this.watchers.restart.close()
const { name, ext } = path.parse(_path)
this.nuxt.callHook('watch:fileChanged', this, `${name}${ext}`)
})
}
async unwatch() {
for (const watcher in this.watchers) {
if (this.watchers[watcher]) {
this.watchers[watcher].close()
}
}
if (this.bundleBuilder.unwatch) {
await this.bundleBuilder.unwatch()
}
}
}
const STATUS = {
INITIAL: 1,
BUILD_DONE: 2,
BUILDING: 3
}