163 lines
3.9 KiB
JavaScript
163 lines
3.9 KiB
JavaScript
'use strict'
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// most of this code was written by Andrew Kelley
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// licensed under the BSD license: see
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// https://github.com/andrewrk/node-mv/blob/master/package.json
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// this needs a cleanup
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const u = require('universalify').fromCallback
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const fs = require('graceful-fs')
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const ncp = require('../copy/ncp')
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const path = require('path')
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const remove = require('../remove').remove
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const mkdirp = require('../mkdirs').mkdirs
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function move (source, dest, options, callback) {
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if (typeof options === 'function') {
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callback = options
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options = {}
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}
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const shouldMkdirp = ('mkdirp' in options) ? options.mkdirp : true
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const overwrite = options.overwrite || options.clobber || false
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if (shouldMkdirp) {
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mkdirs()
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} else {
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doRename()
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}
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function mkdirs () {
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mkdirp(path.dirname(dest), err => {
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if (err) return callback(err)
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doRename()
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})
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}
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function doRename () {
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if (path.resolve(source) === path.resolve(dest)) {
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fs.access(source, callback)
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} else if (overwrite) {
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fs.rename(source, dest, err => {
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if (!err) return callback()
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if (err.code === 'ENOTEMPTY' || err.code === 'EEXIST') {
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remove(dest, err => {
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if (err) return callback(err)
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options.overwrite = false // just overwriteed it, no need to do it again
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move(source, dest, options, callback)
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})
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return
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}
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// weird Windows shit
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if (err.code === 'EPERM') {
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setTimeout(() => {
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remove(dest, err => {
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if (err) return callback(err)
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options.overwrite = false
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move(source, dest, options, callback)
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})
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}, 200)
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return
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}
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if (err.code !== 'EXDEV') return callback(err)
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moveAcrossDevice(source, dest, overwrite, callback)
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})
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} else {
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fs.link(source, dest, err => {
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if (err) {
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if (err.code === 'EXDEV' || err.code === 'EISDIR' || err.code === 'EPERM' || err.code === 'ENOTSUP') {
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moveAcrossDevice(source, dest, overwrite, callback)
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return
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}
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callback(err)
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return
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}
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fs.unlink(source, callback)
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})
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}
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}
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}
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function moveAcrossDevice (source, dest, overwrite, callback) {
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fs.stat(source, (err, stat) => {
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if (err) {
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callback(err)
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return
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}
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if (stat.isDirectory()) {
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moveDirAcrossDevice(source, dest, overwrite, callback)
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} else {
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moveFileAcrossDevice(source, dest, overwrite, callback)
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}
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})
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}
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function moveFileAcrossDevice (source, dest, overwrite, callback) {
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const flags = overwrite ? 'w' : 'wx'
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const ins = fs.createReadStream(source)
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const outs = fs.createWriteStream(dest, { flags })
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ins.on('error', err => {
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ins.destroy()
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outs.destroy()
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outs.removeListener('close', onClose)
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// may want to create a directory but `out` line above
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// creates an empty file for us: See #108
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// don't care about error here
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fs.unlink(dest, () => {
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// note: `err` here is from the input stream errror
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if (err.code === 'EISDIR' || err.code === 'EPERM') {
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moveDirAcrossDevice(source, dest, overwrite, callback)
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} else {
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callback(err)
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}
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})
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})
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outs.on('error', err => {
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ins.destroy()
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outs.destroy()
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outs.removeListener('close', onClose)
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callback(err)
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})
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outs.once('close', onClose)
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ins.pipe(outs)
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function onClose () {
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fs.unlink(source, callback)
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}
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}
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function moveDirAcrossDevice (source, dest, overwrite, callback) {
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const options = {
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overwrite: false
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}
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if (overwrite) {
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remove(dest, err => {
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if (err) return callback(err)
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startNcp()
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})
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} else {
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startNcp()
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}
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function startNcp () {
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ncp(source, dest, options, err => {
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if (err) return callback(err)
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remove(source, callback)
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})
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}
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}
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module.exports = {
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move: u(move)
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}
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