vue hello world项目
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3 years ago
'use strict'
const fs = require('graceful-fs')
const path = require('path')
const copy = require('../copy').copy
const remove = require('../remove').remove
const mkdirp = require('../mkdirs').mkdirp
const pathExists = require('../path-exists').pathExists
const stat = require('../util/stat')
function move (src, dest, opts, cb) {
if (typeof opts === 'function') {
cb = opts
opts = {}
}
const overwrite = opts.overwrite || opts.clobber || false
stat.checkPaths(src, dest, 'move', (err, stats) => {
if (err) return cb(err)
const { srcStat } = stats
stat.checkParentPaths(src, srcStat, dest, 'move', err => {
if (err) return cb(err)
mkdirp(path.dirname(dest), err => {
if (err) return cb(err)
return doRename(src, dest, overwrite, cb)
})
})
})
}
function doRename (src, dest, overwrite, cb) {
if (overwrite) {
return remove(dest, err => {
if (err) return cb(err)
return rename(src, dest, overwrite, cb)
})
}
pathExists(dest, (err, destExists) => {
if (err) return cb(err)
if (destExists) return cb(new Error('dest already exists.'))
return rename(src, dest, overwrite, cb)
})
}
function rename (src, dest, overwrite, cb) {
fs.rename(src, dest, err => {
if (!err) return cb()
if (err.code !== 'EXDEV') return cb(err)
return moveAcrossDevice(src, dest, overwrite, cb)
})
}
function moveAcrossDevice (src, dest, overwrite, cb) {
const opts = {
overwrite,
errorOnExist: true
}
copy(src, dest, opts, err => {
if (err) return cb(err)
return remove(src, cb)
})
}
module.exports = move