Write files in an atomic fashion w/configurable ownership. 

Write files in an atomic fashion w/configurable ownership

lukekarrys

fritzy

saquibkhan

npm-cli-ops

write-file-atomic

othiym23

iarna

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module.exports._getTmpname = getTmpname // for testing

var extend = Object.assign || require('util')._extend

  return filename + '.' + MurmurHash3(__filename).hash(process.pid).hash(++invocations).result()

module.exports = function writeFile (filename, data, options, callback) {

function writeFile (filename, data, options, callback) {

  fs.realpath(filename, function (_, realname) {

    _writeFile(realname || filename, data, options, callback)

function _writeFile (filename, data, options, callback) {

    // Either mode or chown is not explicitly set

    // Default behavior is to copy it from original file

    return fs.stat(filename, function (err, stats) {

      if (err || !stats) return thenWriteFile()

      if (!options.chown && process.getuid) {

        options.chown = { uid: stats.uid, gid: stats.gid }

      [fs, fs.writeFile, tmpfile, data, options.encoding || 'utf8'],

      options.mode && [fs, fs.chmod, tmpfile, options.mode],

      options.chown && [fs, fs.chown, tmpfile, options.chown.uid, options.chown.gid],

      err ? fs.unlink(tmpfile, function () { callback(err) })

module.exports.sync = function writeFileSync (filename, data, options) {

function writeFileSync (filename, data, options) {

    // it's ok, it'll happen on a not yet existing file

    if (!options.mode || !options.chown) {

      // Either mode or chown is not explicitly set

      // Default behavior is to copy it from original file

        var stats = fs.statSync(filename)

        if (!options.chown && process.getuid) {

          options.chown = { uid: stats.uid, gid: stats.gid }

    fs.writeFileSync(tmpfile, data, options.encoding || 'utf8')

    if (options.chown) fs.chownSync(tmpfile, options.chown.uid, options.chown.gid)

    if (options.mode) fs.chmodSync(tmpfile, options.mode)

    try { fs.unlinkSync(tmpfile) } catch (e) {}

  "description": "Write files in an atomic fashion w/configurable ownership",

    "test": "standard && tap --coverage test/*.js"

    "url": "git@github.com:iarna/write-file-atomic.git"

  "author": "Rebecca Turner <me@re-becca.org> (http://re-becca.org)",

    "url": "https://github.com/iarna/write-file-atomic/issues"

  "homepage": "https://github.com/iarna/write-file-atomic",

		'use strict'
		module.exports = writeFile
		module.exports.sync = writeFileSync
		module.exports._getTmpname = getTmpname // for testing

		var fs = require('graceful-fs')
		@@ -8,7 +12,11 @@ var chain = require('slide').chain
		var invocations = 0
		var getTmpname = function (filename) {
		return filename + '.' + MurmurHash3(__filename).hash(process.pid).hash(++invocations).result()
		function getTmpname (filename) {
		return filename + '.' +
		MurmurHash3(__filename)
		.hash(String(process.pid))
		.hash(String(++invocations))
		.result()
		}

		module.exports = function writeFile (filename, data, options, callback) {
		function writeFile (filename, data, options, callback) {
		if (options instanceof Function) {
		@@ -58,3 +66,3 @@ callback = options

		module.exports.sync = function writeFileSync (filename, data, options) {
		function writeFileSync (filename, data, options) {
		if (!options) options = {}
		@@ -61,0 +69,0 @@ try {

		{
		"name": "write-file-atomic",
		"version": "1.3.0",
		"version": "1.3.1",
		"description": "Write files in an atomic fashion w/configurable ownership",
		@@ -5,0 +5,0 @@ "main": "index.js",

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