Nuxt/lib/common/utils.js

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const { resolve, relative, sep } = require('path')
const _ = require('lodash')
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const PrettyError = require('pretty-error')
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const Chalk = require('chalk')
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exports.pe = new PrettyError()
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exports.printWarn = function (msg, from) {
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/* eslint-disable no-console */
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const fromStr = from ? Chalk.yellow(` ${from}\n\n`) : ' '
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console.warn('\n' + Chalk.bgYellow.black(' WARN ') + fromStr + msg + '\n')
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}
exports.renderError = function (_error, from) {
const errStr = exports.pe.render(_error)
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const fromStr = from ? Chalk.red(` ${from}`) : ''
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return '\n' + Chalk.bgRed.black(' ERROR ') + fromStr + '\n\n' + errStr
}
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exports.printError = function () {
/* eslint-disable no-console */
console.error(exports.renderError(...arguments))
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}
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exports.fatalError = function () {
/* eslint-disable no-console */
console.error(exports.renderError(...arguments))
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process.exit(1)
}
exports.encodeHtml = function encodeHtml(str) {
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return str.replace(/</g, '&lt;').replace(/>/g, '&gt;')
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}
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exports.getContext = function getContext(req, res) {
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return { req, res }
}
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exports.setAnsiColors = function setAnsiColors(ansiHTML) {
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ansiHTML.setColors({
reset: ['efefef', 'a6004c'],
darkgrey: '5a012b',
yellow: 'ffab07',
green: 'aeefba',
magenta: 'ff84bf',
blue: '3505a0',
cyan: '56eaec',
red: '4e053a'
})
}
exports.waitFor = function waitFor(ms) {
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return new Promise(resolve => setTimeout(resolve, ms || 0))
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}
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exports.urlJoin = function urlJoin() {
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return [].slice
.call(arguments)
.join('/')
.replace(/\/+/g, '/')
.replace(':/', '://')
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}
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exports.isUrl = function isUrl(url) {
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return url.indexOf('http') === 0 || url.indexOf('//') === 0
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}
exports.promisifyRoute = function promisifyRoute(fn, ...args) {
// If routes is an array
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if (Array.isArray(fn)) {
return Promise.resolve(fn)
}
// If routes is a function expecting a callback
if (fn.length === arguments.length) {
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return new Promise((resolve, reject) => {
fn((err, routeParams) => {
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if (err) {
reject(err)
}
resolve(routeParams)
}, ...args)
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})
}
let promise = fn(...args)
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if (
!promise ||
(!(promise instanceof Promise) && typeof promise.then !== 'function')
) {
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promise = Promise.resolve(promise)
}
return promise
}
exports.sequence = function sequence(tasks, fn) {
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return tasks.reduce(
(promise, task) => promise.then(() => fn(task)),
Promise.resolve()
)
}
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exports.parallel = function parallel(tasks, fn) {
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return Promise.all(tasks.map(task => fn(task)))
}
exports.chainFn = function chainFn(base, fn) {
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/* istanbul ignore if */
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if (!(fn instanceof Function)) {
return
}
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return function () {
if (typeof base !== 'function') {
return fn.apply(this, arguments)
}
let baseResult = base.apply(this, arguments)
// Allow function to mutate the first argument instead of returning the result
if (baseResult === undefined) {
baseResult = arguments[0]
}
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let fnResult = fn.call(
this,
baseResult,
...Array.prototype.slice.call(arguments, 1)
)
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// Return mutated argument if no result was returned
if (fnResult === undefined) {
return baseResult
}
return fnResult
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}
}
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exports.isPureObject = function isPureObject(o) {
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return !Array.isArray(o) && typeof o === 'object'
}
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const isWindows = (exports.isWindows = /^win/.test(process.platform))
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const wp = (exports.wp = function wp(p = '') {
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/* istanbul ignore if */
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if (isWindows) {
return p.replace(/\\/g, '\\\\')
}
return p
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})
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exports.wChunk = function wChunk(p = '') {
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/* istanbul ignore if */
if (isWindows) {
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return p.replace(/\//g, '_')
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}
return p
}
const reqSep = /\//g
const sysSep = _.escapeRegExp(sep)
const normalize = string => string.replace(reqSep, sysSep)
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const r = (exports.r = function r() {
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let args = Array.prototype.slice.apply(arguments)
let lastArg = _.last(args)
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if (lastArg.indexOf('@') === 0 || lastArg.indexOf('~') === 0) {
return wp(lastArg)
}
return wp(resolve(...args.map(normalize)))
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})
exports.relativeTo = function relativeTo() {
let args = Array.prototype.slice.apply(arguments)
let dir = args.shift()
// Resolve path
let path = r(...args)
// Check if path is an alias
if (path.indexOf('@') === 0 || path.indexOf('~') === 0) {
return path
}
// Make correct relative path
let rp = relative(dir, path)
if (rp[0] !== '.') {
rp = './' + rp
}
return wp(rp)
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}
exports.flatRoutes = function flatRoutes(router, path = '', routes = []) {
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router.forEach(r => {
if (!r.path.includes(':') && !r.path.includes('*')) {
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/* istanbul ignore if */
if (r.children) {
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if (path === '' && r.path === '/') {
routes.push('/')
}
flatRoutes(r.children, path + r.path + '/', routes)
} else {
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path = path.replace(/^\/+$/, '/')
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routes.push(
(r.path === '' && path[path.length - 1] === '/'
? path.slice(0, -1)
: path) + r.path
)
}
}
})
return routes
}
function cleanChildrenRoutes(routes, isChild = false) {
let start = -1
let routesIndex = []
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routes.forEach(route => {
if (/-index$/.test(route.name) || route.name === 'index') {
// Save indexOf 'index' key in name
let res = route.name.split('-')
let s = res.indexOf('index')
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start = start === -1 || s < start ? s : start
routesIndex.push(res)
}
})
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routes.forEach(route => {
route.path = isChild ? route.path.replace('/', '') : route.path
if (route.path.indexOf('?') > -1) {
let names = route.name.split('-')
let paths = route.path.split('/')
if (!isChild) {
paths.shift()
} // clean first / for parents
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routesIndex.forEach(r => {
let i = r.indexOf('index') - start // children names
if (i < paths.length) {
for (let a = 0; a <= i; a++) {
if (a === i) {
paths[a] = paths[a].replace('?', '')
}
if (a < i && names[a] !== r[a]) {
break
}
}
}
})
route.path = (isChild ? '' : '/') + paths.join('/')
}
route.name = route.name.replace(/-index$/, '')
if (route.children) {
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if (route.children.find(child => child.path === '')) {
delete route.name
}
route.children = cleanChildrenRoutes(route.children, true)
}
})
return routes
}
exports.createRoutes = function createRoutes(files, srcDir) {
let routes = []
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files.forEach(file => {
let keys = file
.replace(/^pages/, '')
.replace(/\.(vue|js)$/, '')
.replace(/\/{2,}/g, '/')
.split('/')
.slice(1)
let route = { name: '', path: '', component: r(srcDir, file) }
let parent = routes
keys.forEach((key, i) => {
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route.name = route.name
? route.name + '-' + key.replace('_', '')
: key.replace('_', '')
route.name += key === '_' ? 'all' : ''
route.chunkName = file.replace(/\.(vue|js)$/, '')
let child = _.find(parent, { name: route.name })
if (child) {
child.children = child.children || []
parent = child.children
route.path = ''
} else {
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if (key === 'index' && i + 1 === keys.length) {
route.path += i > 0 ? '' : '/'
} else {
route.path += '/' + (key === '_' ? '*' : key.replace('_', ':'))
if (key !== '_' && key.indexOf('_') !== -1) {
route.path += '?'
}
}
}
})
// Order Routes path
parent.push(route)
parent.sort((a, b) => {
if (!a.path.length) {
return -1
}
if (!b.path.length) {
return 1
}
// Order: /static, /index, /:dynamic
// Match exact route before index: /login before /index/_slug
if (a.path === '/') {
return /^\/(:|\*)/.test(b.path) ? -1 : 1
}
if (b.path === '/') {
return /^\/(:|\*)/.test(a.path) ? 1 : -1
}
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let i = 0
let res = 0
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let y = 0
let z = 0
const _a = a.path.split('/')
const _b = b.path.split('/')
for (i = 0; i < _a.length; i++) {
if (res !== 0) {
break
}
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y = _a[i] === '*' ? 2 : _a[i].indexOf(':') > -1 ? 1 : 0
z = _b[i] === '*' ? 2 : _b[i].indexOf(':') > -1 ? 1 : 0
res = y - z
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// If a.length >= b.length
if (i === _b.length - 1 && res === 0) {
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// change order if * found
res = _a[i] === '*' ? -1 : 1
}
}
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return res === 0 ? (_a[i - 1] === '*' && _b[i] ? 1 : -1) : res
})
})
return cleanChildrenRoutes(routes)
}