gorillajs/app/plugins/ssl/node_modules/fs-extra/lib/move/index.js

A smart development environment designed to easily install and neatly manage web applications. Gorilla JS frees you from the repetitive daily tasks like apps installation, database management, creation of virtual environment, server configuration… And it

// most of this code was written by Andrew Kelley
// licensed under the BSD license: see
// https://github.com/andrewrk/node-mv/blob/master/package.json

// this needs a cleanup

var fs = require('graceful-fs')
var ncp = require('../copy/ncp')
var path = require('path')
var rimraf = require('rimraf')
var mkdirp = require('../mkdirs').mkdirs

function mv (source, dest, options, callback) {
  if (typeof options === 'function') {
    callback = options
    options = {}
  }

  var shouldMkdirp = ('mkdirp' in options) ? options.mkdirp : true
  var clobber = ('clobber' in options) ? options.clobber : false

  var limit = options.limit || 16

  if (shouldMkdirp) {
    mkdirs()
  } else {
    doRename()
  }

  function mkdirs () {
    mkdirp(path.dirname(dest), function (err) {
      if (err) return callback(err)
      doRename()
    })
  }

  function doRename () {
    if (clobber) {
      fs.rename(source, dest, function (err) {
        if (!err) return callback()

        if (err.code === 'ENOTEMPTY' || err.code === 'EEXIST') {
          rimraf(dest, function (err) {
            if (err) return callback(err)
            options.clobber = false // just clobbered it, no need to do it again
            mv(source, dest, options, callback)
          })
          return
        }

        // weird Windows shit
        if (err.code === 'EPERM') {
          setTimeout(function () {
            rimraf(dest, function (err) {
              if (err) return callback(err)
              options.clobber = false
              mv(source, dest, options, callback)
            })
          }, 200)
          return
        }

        if (err.code !== 'EXDEV') return callback(err)
        moveAcrossDevice(source, dest, clobber, limit, callback)
      })
    } else {
      fs.link(source, dest, function (err) {
        if (err) {
          if (err.code === 'EXDEV' || err.code === 'EISDIR' || err.code === 'EPERM') {
            moveAcrossDevice(source, dest, clobber, limit, callback)
            return
          }
          callback(err)
          return
        }
        fs.unlink(source, callback)
      })
    }
  }
}

function moveAcrossDevice (source, dest, clobber, limit, callback) {
  fs.stat(source, function (err, stat) {
    if (err) {
      callback(err)
      return
    }

    if (stat.isDirectory()) {
      moveDirAcrossDevice(source, dest, clobber, limit, callback)
    } else {
      moveFileAcrossDevice(source, dest, clobber, limit, callback)
    }
  })
}

function moveFileAcrossDevice (source, dest, clobber, limit, callback) {
  var outFlags = clobber ? 'w' : 'wx'
  var ins = fs.createReadStream(source)
  var outs = fs.createWriteStream(dest, {flags: outFlags})

  ins.on('error', function (err) {
    ins.destroy()
    outs.destroy()
    outs.removeListener('close', onClose)

    // may want to create a directory but `out` line above
    // creates an empty file for us: See #108
    // don't care about error here
    fs.unlink(dest, function () {
      // note: `err` here is from the input stream errror
      if (err.code === 'EISDIR' || err.code === 'EPERM') {
        moveDirAcrossDevice(source, dest, clobber, limit, callback)
      } else {
        callback(err)
      }
    })
  })

  outs.on('error', function (err) {
    ins.destroy()
    outs.destroy()
    outs.removeListener('close', onClose)
    callback(err)
  })

  outs.once('close', onClose)
  ins.pipe(outs)

  function onClose () {
    fs.unlink(source, callback)
  }
}

function moveDirAcrossDevice (source, dest, clobber, limit, callback) {
  var options = {
    stopOnErr: true,
    clobber: false,
    limit: limit
  }

  function startNcp () {
    ncp(source, dest, options, function (errList) {
      if (errList) return callback(errList[0])
      rimraf(source, callback)
    })
  }

  if (clobber) {
    rimraf(dest, function (err) {
      if (err) return callback(err)
      startNcp()
    })
  } else {
    startNcp()
  }
}

module.exports = {
  move: mv
}