Nuxt/lib/generate.js

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'use strict'
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import fs from 'fs-extra'
import co from 'co'
import pify from 'pify'
import _ from 'lodash'
import { resolve, join, dirname, sep } from 'path'
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import { isUrl, promisifyRoute, waitFor } from './utils'
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import { minify } from 'html-minifier'
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const debug = require('debug')('nuxt:generate')
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const copy = pify(fs.copy)
const remove = pify(fs.remove)
const writeFile = pify(fs.writeFile)
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const mkdirp = pify(fs.mkdirp)
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const defaults = {
dir: 'dist',
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routes: [],
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interval: 0,
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minify: {
collapseBooleanAttributes: true,
collapseWhitespace: true,
decodeEntities: true,
minifyCSS: true,
minifyJS: true,
processConditionalComments: true,
removeAttributeQuotes: false,
removeComments: false,
removeEmptyAttributes: true,
removeOptionalTags: true,
removeRedundantAttributes: true,
removeScriptTypeAttributes: false,
removeStyleLinkTypeAttributes: false,
removeTagWhitespace: false,
sortAttributes: true,
sortClassName: true,
trimCustomFragments: true,
useShortDoctype: true
}
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}
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export default function () {
const s = Date.now()
let errors = []
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/*
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** Set variables
*/
this.options.generate = _.defaultsDeep(this.options.generate, defaults)
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var self = this
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var srcStaticPath = resolve(this.srcDir, 'static')
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var srcBuiltPath = resolve(this.dir, '.nuxt', 'dist')
var distPath = resolve(this.dir, this.options.generate.dir)
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var distNuxtPath = join(distPath, (isUrl(this.options.build.publicPath) ? '' : this.options.build.publicPath))
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return co(function * () {
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/*
** Launch build process
*/
yield self.build()
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/*
** Clean destination folder
*/
try {
yield remove(distPath)
debug('Destination folder cleaned')
} catch (e) {}
/*
** Copy static and built files
*/
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if (fs.existsSync(srcStaticPath)) {
yield copy(srcStaticPath, distPath)
}
yield copy(srcBuiltPath, distNuxtPath)
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debug('Static & build files copied')
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})
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.then(() => {
// Resolve config.generate.routes promises before generating the routes
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return promisifyRoute(this.options.generate.routes || [])
.catch((e) => {
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console.error('Could not resolve routes') // eslint-disable-line no-console
console.error(e) // eslint-disable-line no-console
process.exit(1)
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throw e // eslint-disable-line no-unreachable
})
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})
.then((generateRoutes) => {
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/*
** Generate html files from routes
*/
generateRoutes.forEach((route) => {
if (this.routes.indexOf(route) < 0) {
this.routes.push(route)
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}
})
let routes = this.routes
return co(function * () {
while (routes.length) {
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let n = 0
yield routes.splice(0, 500).map((route) => {
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return co(function * () {
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yield waitFor(n++ * self.options.generate.interval)
try {
var { html, error } = yield self.renderRoute(route, { _generate: true })
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if (error) {
errors.push({ type: 'handled', route, error })
}
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} catch (err) {
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errors.push({ type: 'unhandled', route, error: err })
return
}
try {
var minifiedHtml = minify(html, self.options.generate.minify)
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} catch (err) {
let minifyErr = new Error(`HTML minification failed. Make sure the route generates valid HTML. Failed HTML:\n ${html}`)
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errors.push({ type: 'unhandled', route, error: minifyErr })
return
}
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var path = join(route, sep, 'index.html') // /about -> /about/index.html
debug('Generate file: ' + path)
path = join(distPath, path)
// Make sure the sub folders are created
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yield mkdirp(dirname(path))
yield writeFile(path, minifiedHtml, 'utf8')
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})
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})
}
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})
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})
.then((pages) => {
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// Add .nojekyll file to let Github Pages add the _nuxt/ folder
// https://help.github.com/articles/files-that-start-with-an-underscore-are-missing/
const nojekyllPath = resolve(distPath, '.nojekyll')
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return writeFile(nojekyllPath, '')
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})
.then(() => {
const duration = Math.round((Date.now() - s) / 100) / 10
debug(`HTML Files generated in ${duration}s`)
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if (errors.length) {
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const report = errors.map(({ type, route, error }) => {
if (type === 'unhandled') {
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return `Route: '${route}'\n${error.stack}`
} else {
return `Route: '${route}' thrown an error: \n` + JSON.stringify(error)
}
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})
console.error('==== Error report ==== \n' + report).join('\n\n') // eslint-disable-line no-console
}
return this
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})
}