# nw-builder **Repository Path**: mirrors_cypress-io/nw-builder ## Basic Information - **Project Name**: nw-builder - **Description**: Lets you build your NW.js apps for mac, win and linux via cli. It will download the prebuilt binaries for a newest version, unpacks it, creates a release folder, create the app.nw file for a specified directory and copies the app.nw file where it belongs. - **Primary Language**: Unknown - **License**: MIT - **Default Branch**: master - **Homepage**: None - **GVP Project**: No ## Statistics - **Stars**: 0 - **Forks**: 0 - **Created**: 2020-08-08 - **Last Updated**: 2025-11-15 ## Categories & Tags **Categories**: Uncategorized **Tags**: None ## README # nw-builder [![NPM version][npm-image]][npm-url] [![Build Status][travis-image]][travis-url] [![Dependency Status][depstat-image]][depstat-url] [![NPM](https://nodei.co/npm/nw-builder.png?downloads=true)](https://nodei.co/npm/nw-builder/) > Lets you build your [NW.js](https://github.com/nwjs/nw.js) apps for mac, win and linux via cli. It will download the prebuilt binaries for a newest version, unpacks it, creates a release folder, create the app.nw file for a specified directory and copies the app.nw file where it belongs. ### Installation ##### Local ```shell npm install nw-builder --save-dev ``` ##### Global ```shell npm install nw-builder -g ``` ##### Grunt and Gulp Plugins Yes, there is also a [Grunt Plugin](https://github.com/mllrsohn/grunt-nw-builder). For Gulp, just use the module :) ## Usage ```shell Usage: nwbuild [options] [path] Options: -p, --platforms Platforms to build, comma-sperated, can be: win32,win64,osx32,osx64,linux32,linux64 ['osx32', 'osx64', 'win32', 'win64'] -v, --version The nw version, eg. 0.8.4 [default: "latest"] -r, --run Runs NW.js for the current platform [default: false] -o, --buildDir The build folder [default: "./build"] -f, --forceDownload Force download of NW.js [default: false] --quiet Disables logging [default: false] ``` #### Run NW.js During development you can run NW.js with `nwbuild -r path/to/your/younwapp/` Or use the module: ```js var NwBuilder = require('nw-builder'); var nw = new NwBuilder({ files: './path/to/nwfiles/**/**', // use the glob format platforms: ['osx32', 'osx64', 'win32', 'win64'] }); //Log stuff you want nw.on('log', console.log); // Build returns a promise nw.build().then(function () { console.log('all done!'); }).catch(function (error) { console.error(error); }); ``` `build` also supports callbacks: ```javascript nw.build(function(err) { if(err) console.log(err); }) ``` ### Options #### options.files *Required* Type: `String` Default value: `null` The path to your node webkit app. It supports [simple-glob](https://github.com/jedmao/simple-glob) so you can do stuff like `['foo/*.js', '!foo/bar.js', 'foo/bar.js']`. #### options.version Type: `String` Default value: `'latest'` The version of NW.js you want to use. Per default it looks up the latest version. [Here is a list](https://github.com/nwjs/nw.js/wiki/Downloads-of-old-versions) of all available releases #### options.platforms Type: `Array` Default value: `['osx32', 'osx64', 'win32', 'win64']` The platforms you want to build. Can be `['win32', 'win64', 'osx32', 'osx64', 'linux32', 'linux64']` The values `['win', 'osx', 'linux']` can also be used and will build both the 32 and 64 bit versions of the specified platforms. #### options.appName Type: `String` Default value: `false` The Name of your NW.js app. If this value is set to null, it will autodetect the `name` form your projects package.json. This will be used to generate a plist file for mac. #### options.appVersion Type: `String` Default value: `false` The version of your NW.js app. If this value is set to null, it will autodetect the `version` form your projects package.json. This will be used to generate a plist file for mac. #### options.buildDir Type: `String` Default value: `./build` This is where the releases are saved. #### options.cacheDir Type: `String` Default value: `./cache` This is where the cached NW.js downloads are #### options.buildType Type: `String` or `function` Default value: `default` How you want to save your build. * `default` [appName] * `versioned` [appName] -v[appVersion] * `timestamped` [appName] - [timestamp]; * A function with options as scope (e.g `function () {return this.appVersion;}` ) #### options.forceDownload Type: `Boolean` Default value: `false` This will delete everything in your `build_dir` directory, including the cached downloaded prebuilt binaries #### options.macCredits Type: `String` Default value: `false` MAC ONLY: The path to your credits.html file. If your don't provide your own it will use the one provided by NW.js #### options.macIcns Type: `String` Default value: `false` MAC ONLY: The path to your ICNS icon file. If your don't provide your own it will use the one provided by NW.js #### options.macZip Type: `Boolean` Default value: `null` MAC ONLY: Use a `app.nw` folder instead of `ZIP` file, this significantly improves the startup speed of applications on `mac`, since no decompressing is needed. Builds on other platforms will still use `ZIP` files. The default behaviour of node-webkit-builder is to not use `ZIP` files on the `mac` platform. In case of the `mac` platform the option `macZip` can override the option `zip`. #### options.macPlist Type: `String` or `Object` Default value: `false` MAC ONLY: Pass a string containing the path to your own plist file. If a string isn't passed, a plist file will be generated from your package.json. Pass an object to overwrite or add properties to the generated plist file. #### options.winIco Type: `String` Default value: `null` WINDOWS ONLY: The path to your ICO icon file. If your don't provide your own it will use the one provided by NW.js. If you are building on MAC or LINUX you must have [Wine](http://winehq.org) installed to use this option. #### options.zip Type: `Boolean` Default value: `null` WINDOW ONLY: Instead of zipping the application and merging it into the executable the application content is placed next to the application. The default behaviour is platform specific. In case of `windows` and `linux` the application is zipped and merged into the executable. In case of the `mac` platform the application is not zipped. ### Manifest Options #### platformOverrides Allows you to specify platform-specific manifest values. Example manifest: ```json { "name": "nw-demo", "version": "0.1.0", "main": "index.html", "window": { "frame": false, "toolbar": false }, "platformOverrides": { "win": { "window": { "toolbar": true } }, "win32": { "window": { "frame": true, "toolbar": false } }, "win64": { "window": { "frame": true } }, "osx": { ... }, "osx32": { ... }, "osx64": { ... }, "linux": { ... }, "linux32": { ... }, "linux64": { ... }, } ``` The platform-specific options will override the others only when building that platform only and the `platformOverrides` property will be removed. For example, when building for Windows, the manifest generated and put into the end app (from the manifest above) would be: ```json { "name": "nw-demo", "version": "0.1.0", "main": "index.html", "window": { "frame": true, "toolbar": false } } ``` Additionally, when specifying multiple version of the same platform such as "win", "win32", and "win64", changes will be applied such that "win" applies to both "win32" and "win64", while "win32" and "win64" apply only to the specified version. Also note that "win32" and "win64" can further override changes made in "win". See [#85](https://github.com/mllrsohn/nw-builder/issues/85) and [#94](https://github.com/mllrsohn/nw-builder/pull/94) for more information. If you need this during development too, see [platform-overrides](http://github.com/adam-lynch/platform-overrides) and [gulp-platform-overrides](http://github.com/adam-lynch/gulp-platform-overrides). There is no Grunt plugin, [yet](https://github.com/new). ## Troubleshooting ### OSX ulimit Darwin (OS X kernel) has a low limit for file descriptors (256 per process) by default, so you might get an `EMFILE` error or an error mentioning "too many open files" if youtry to open more file descriptors than this. To get around it, run `ulimit -n 1024` (or add it to your `~/.bash_profile`). For more information, see [henvic/osx-ulimit](https://github.com/henvic/osx-ulimit). ## Contributing See [CONTRIBUTING.md](CONTRIBUTING.md). ## Release History - 2015-05-05 `1.0.12` when using latest NW.js version, it's first validated that it's not an alpha version (fixes [#222](https://github.com/mllrsohn/nw-builder/issues/222)). Plus a fix for the `winIco` & `macIcns` command line options - 2015-01-29 `1.0.8` fixed EMFILE errors (see [#147](https://github.com/mllrsohn/nw-builder/issues/147) [#148](https://github.com/mllrsohn/nw-builder/pull/148)) - 2015-01-21 `1.0.7` fixed about screen when copyright is not supplied - 2015-01-15 `1.0.6` fixed downloads for nw.js version 0.12.0-alpha1 - 2015-01-15 `1.0.5` fixed downloads for NW.js versions < 0.12.0-alpha - 2014-12-12 `1.0.0` 64-bit support, improved platform-overrides and no more EMFILE errors. - 2014-12-07 `0.4.0` macPlist CFBundleIdentifier is generated from `package.json` (see [#131](https://github.com/mllrsohn/nw-builder/pull/131)) - 2014-11-14 `0.3.0` macPlist option improvements (see [#96](https://github.com/mllrsohn/nw-builder/pull/96)) - 2014-10-30 `0.2.0` adds support for platform-specific manifest overrides (see [#94](https://github.com/mllrsohn/nw-builder/pull/94)) - 2014-08-19 `0.1.2` adds a progress bar to downloads, fixes downloading through a proxy, fixed winIco, bug fixes - 2014-08-01 `0.1.0` use app filename for generated executables, optimized version checking, (known issue: `winIco` on windows) - 2014-07-31 `0.0.4` fixed compatibility with nodewebkit 0.10.0 - 2014-04-20 Added run option, bug fixes - 2014-04-13 Preview Release ## License [MIT License](http://en.wikipedia.org/wiki/MIT_License) [npm-url]: https://npmjs.org/package/nw-builder [npm-image]: http://img.shields.io/npm/v/nw-builder.svg?style=flat [travis-url]: http://travis-ci.org/mllrsohn/nw-builder [travis-image]: http://img.shields.io/travis/mllrsohn/nw-builder/master.svg?style=flat [depstat-url]: https://david-dm.org/mllrsohn/nw-builder [depstat-image]: https://david-dm.org/mllrsohn/nw-builder.svg?style=flat