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keksAccountGUI/node_modulesOLD/fs-extra/lib/move/index.js
2019-08-11 20:48:02 +02:00

82 lines
1.9 KiB
JavaScript

'use strict'
const u = require('universalify').fromCallback
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
function move (src, dest, opts, cb) {
if (typeof opts === 'function') {
cb = opts
opts = {}
}
const overwrite = opts.overwrite || opts.clobber || false
src = path.resolve(src)
dest = path.resolve(dest)
if (src === dest) return fs.access(src, cb)
fs.stat(src, (err, st) => {
if (err) return cb(err)
if (st.isDirectory() && isSrcSubdir(src, dest)) {
return cb(new Error(`Cannot move '${src}' to a subdirectory of itself, '${dest}'.`))
}
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)
})
}
function isSrcSubdir (src, dest) {
const srcArray = src.split(path.sep)
const destArray = dest.split(path.sep)
return srcArray.reduce((acc, current, i) => {
return acc && destArray[i] === current
}, true)
}
module.exports = {
move: u(move)
}