4 [![Gitter](https://badges.gitter.im/Join Chat.svg)](https://gitter.im/iojs/io.js?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
6 This repository began as a GitHub fork of
7 [joyent/node](https://github.com/joyent/node).
9 io.js contributions, releases, and contributorship are under an
10 [open governance model](./GOVERNANCE.md).
11 We intend to land, with increasing regularity, releases which are
12 compatible with the npm ecosystem that has been built to date for
15 ## Is it io.js or IO.js or iojs or IOjs or iOjS?
17 The official name is **io.js**, which should never be capitalized,
18 especially not at the start of a sentence, unless it is being
19 displayed in a location that is customarily all-caps (such as
20 the title of man pages).
24 Binaries, installers and source tarballs are available at
27 **Releases** are available at <https://iojs.org/dist/>, listed under
28 their version string. The <https://iojs.org/dist/latest/> symlink
29 will point to the latest release directory.
31 **Nightly** builds are available at
32 <https://iojs.org/download/nightly/>, listed under their version
33 string which includes their date (in UTC time) and the commit SHA at
34 the HEAD of the release.
36 **API documentation** is available in each release and nightly
37 directory under _docs_. <http://iojs.org/api/> points to the the
40 ### Verifying Binaries
42 Release and nightly download directories all contain a *SHASUM256.txt*
43 file that lists the SHA checksums for each file available for
44 download. To check that a downloaded file matches the checksum, run
45 it through `sha256sum` with a command such as:
48 $ grep iojs-vx.y.z.tar.gz SHASUMS256.txt | sha256sum -c -
51 _(Where "iojs-vx.y.z.tar.gz" is the name of the file you have
54 Additionally, releases (not nightlies) have GPG signed copies of
55 SHASUM256.txt files available as SHASUM256.txt.asc. You can use `gpg`
56 to verify that the file has not been tampered with.
58 To verify a SHASUM256.txt.asc, you will first need to import all of
59 the GPG keys of individuals authorized to create releases. They are
60 listed at the bottom of this README. Use a command such as this to
64 $ gpg --keyserver pool.sks-keyservers.net \
65 --recv-keys DD8F2338BAE7501E3DD5AC78C273792F7D83545D
68 _(Include each of the key fingerprints at the end of this command.)_
70 You can then use `gpg --verify SHASUMS256.txt.asc` to verify that the
71 file has been signed by an authorized member of the io.js team.
73 Once verified, use the SHASUMS256.txt.asc file to get the checksum for
74 the binary verification command above.
82 * `gcc` and `g++` 4.8 or newer, or
83 * `clang` and `clang++` 3.3 or newer
85 * GNU Make 3.81 or newer
86 * libexecinfo (FreeBSD and OpenBSD only)
94 If your Python binary is in a non-standard location or has a
95 non-standard name, run the following instead:
98 $ export PYTHON=/path/to/python
101 $ [sudo] make install
110 To build the documentation:
116 To read the documentation:
126 * [Python 2.6 or 2.7](https://www.python.org/downloads/)
127 * Visual Studio 2013 for Windows Desktop, or
128 * Visual Studio Express 2013 for Windows Desktop
129 * Basic Unix tools required for some tests,
130 [Git for Windows](http://git-scm.com/download/win) includes Git Bash
131 and tools which can be included in the global `PATH`.
143 ### `Intl` (ECMA-402) support:
145 [Intl](https://github.com/joyent/node/wiki/Intl) support is not
148 #### "small" (English only) support
150 This option will build with "small" (English only) support, but
151 the full `Intl` (ECMA-402) APIs. With `--download=all` it will
152 download the ICU library as needed.
157 $ ./configure --with-intl=small-icu --download=all
163 > vcbuild small-icu download-all
166 The `small-icu` mode builds with English-only data. You can add full
169 *Note:* more docs are on
170 [the joyent/node wiki](https://github.com/joyent/node/wiki/Intl).
172 #### Build with full ICU support (all locales supported by ICU):
174 With the `--download=all`, this may download ICU if you don't have an
180 $ ./configure --with-intl=full-icu --download=all
186 > vcbuild full-icu download-all
189 #### Build with no Intl support `:-(`
191 The `Intl` object will not be available. This is the default at
192 present, so this option is not normally needed.
197 $ ./configure --with-intl=none
206 #### Use existing installed ICU (Unix / Macintosh only):
209 $ pkg-config --modversion icu-i18n && ./configure --with-intl=system-icu
212 #### Build with a specific ICU:
214 You can find other ICU releases at
215 [the ICU homepage](http://icu-project.org/download).
216 Download the file named something like `icu4c-**##.#**-src.tgz` (or
222 # from an already-unpacked ICU:
223 $ ./configure --with-intl=[small-icu,full-icu] --with-icu-source=/path/to/icu
225 # from a local ICU tarball
226 $ ./configure --with-intl=[small-icu,full-icu] --with-icu-source=/path/to/icu.tgz
229 $ ./configure --with-intl=full-icu --with-icu-source=http://url/to/icu.tgz
234 First unpack latest ICU to `deps/icu`
235 [icu4c-**##.#**-src.tgz](http://icu-project.org/download) (or `.zip`)
236 as `deps/icu` (You'll have: `deps/icu/source/...`)
242 ## Resources for Newcomers
244 * [CONTRIBUTING.md](./CONTRIBUTING.md)
245 * [GOVERNANCE.md](./GOVERNANCE.md)
247 [#io.js on Freenode.net](http://webchat.freenode.net?channels=io.js&uio=d4)
248 * [iojs/io.js on Gitter](https://gitter.im/iojs/io.js)
252 ## Current Project Team Members
254 The io.js project team comprises a group of core collaborators and a sub-group
255 that forms the _Technical Committee_ (TC) which governs the project. For more
256 information about the governance of the io.js project, see
257 [GOVERNANCE.md](./GOVERNANCE.md).
259 * **Isaac Z. Schlueter** ([@isaacs](https://github.com/isaacs)) <i@izs.me> (Technical Committee)
260 * **Ben Noordhuis** ([@bnoordhuis](https://github.com/bnoordhuis)) <info@bnoordhuis.nl> (Technical Committee)
261 * **Bert Belder** ([@piscisaureus](https://github.com/piscisaureus)) <bertbelder@gmail.com> (Technical Committee)
262 * **Fedor Indutny** ([@indutny](https://github.com/indutny)) <fedor.indutny@gmail.com> (Technical Committee)
263 * **Trevor Norris** ([@trevnorris](https://github.com/trevnorris)) <trev.norris@gmail.com> (Technical Committee)
264 * **Chris Dickinson** ([@chrisdickinson](https://github.com/chrisdickinson)) <christopher.s.dickinson@gmail.com> (Technical Committee)
265 <br>Release GPG key: 9554F04D7259F04124DE6B476D5A82AC7E37093B
266 * **Colin Ihrig** ([@cjihrig](https://github.com/cjihrig)) <cjihrig@gmail.com> (Technical Committee)
267 * **Mikeal Rogers** ([@mikeal](https://github.com/mikeal)) <mikeal.rogers@gmail.com>
268 * **Rod Vagg** ([@rvagg](https://github.com/rvagg)) <rod@vagg.org>
269 <br>Release GPG key: DD8F2338BAE7501E3DD5AC78C273792F7D83545D
270 * **Thorsten Lorenz** ([@thlorenz](https://github.com/thlorenz)) <thlorenz@gmx.de>
271 * **Stephen Belanger** ([@qard](https://github.com/qard)) <admin@stephenbelanger.com>
272 * **Jeremiah Senkpiel** ([@fishrock123](https://github.com/fishrock123)) <fishrock123@rocketmail.com>
273 * **Evan Lucas** ([@evanlucas](https://github.com/evanlucas)) <evanlucas@me.com>
274 * **Brendan Ashworth** ([@brendanashworth](https://github.com/brendanashworth)) <brendan.ashworth@me.com>
275 * **Vladimir Kurchatkin** ([@vkurchatkin](https://github.com/vkurchatkin)) <vladimir.kurchatkin@gmail.com>
276 * **Nikolai Vavilov** ([@seishun](https://github.com/seishun)) <vvnicholas@gmail.com>
277 * **Nicu Micleușanu** ([@micnic](https://github.com/micnic)) <micnic90@gmail.com>
278 * **Aleksey Smolenchuk** ([@lxe](https://github.com/lxe)) <lxe@lxe.co>
280 Collaborators follow the [COLLABORATOR_GUIDE.md](./COLLABORATOR_GUIDE.md) in
281 maintaining the io.js project.