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Fixes grammar, removes extra lines and spaces, etc. Also removes a few
references to `node-waf`, which was removed ~6 years ago now. Happy to
add back if people still need that information.

PR-URL: #1498
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
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node-gyp
=========
## Node.js native addon build tool
# `node-gyp` - Node.js native addon build tool

`node-gyp` is a cross-platform command-line tool written in Node.js for compiling
native addon modules for Node.js. It bundles the [gyp](https://gyp.gsrc.io)
native addon modules for Node.js. It bundles the [gyp](https://gyp.gsrc.io)
project used by the Chromium team and takes away the pain of dealing with the
various differences in build platforms. It is the replacement to the `node-waf`
program which is removed for node `v0.8`. If you have a native addon for node that
still has a `wscript` file, then you should definitely add a `binding.gyp` file
to support the latest versions of node.
various differences in build platforms.

Multiple target versions of node are supported (i.e. `0.8`, ..., `4`, `5`, `6`,
etc.), regardless of what version of node is actually installed on your system
Multiple target versions of Node.js are supported (i.e. `0.8`, ..., `4`, `5`, `6`,
etc.), regardless of what version of Node.js is actually installed on your system
(`node-gyp` downloads the necessary development files or headers for the target version).

## Features

* Easy to use, consistent interface
* Same commands to build your module on every platform
* Supports multiple target versions of Node
* Supports multiple target versions of Node.js


Installation
------------
## Installation

You can install with `npm`:

Expand Down Expand Up @@ -69,16 +62,15 @@ version `node-gyp` uses by setting the '--python' variable:
$ node-gyp --python /path/to/python2.7
```

If `node-gyp` is called by way of `npm` *and* you have multiple versions of
If `node-gyp` is called by way of `npm`, *and* you have multiple versions of
Python installed, then you can set `npm`'s 'python' config key to the appropriate
value:

``` bash
$ npm config set python /path/to/executable/python2.7
```

How to Use
----------
## How to Use

To compile your native addon, first go to its root directory:

Expand All @@ -99,33 +91,30 @@ needs to be added (not needed when run by npm as configured above):
$ node-gyp configure --msvs_version=2015
```

__Note__: The `configure` step looks for the `binding.gyp` file in the current
directory to process. See below for instructions on creating the `binding.gyp` file.
__Note__: The `configure` step looks for a `binding.gyp` file in the current
directory to process. See below for instructions on creating a `binding.gyp` file.

Now you will have either a `Makefile` (on Unix platforms) or a `vcxproj` file
(on Windows) in the `build/` directory. Next invoke the `build` command:
(on Windows) in the `build/` directory. Next, invoke the `build` command:

``` bash
$ node-gyp build
```

Now you have your compiled `.node` bindings file! The compiled bindings end up
in `build/Debug/` or `build/Release/`, depending on the build mode. At this point
you can require the `.node` file with Node and run your tests!
in `build/Debug/` or `build/Release/`, depending on the build mode. At this point,
you can require the `.node` file with Node.js and run your tests!

__Note:__ To create a _Debug_ build of the bindings file, pass the `--debug` (or
`-d`) switch when running either the `configure`, `build` or `rebuild` command.

`-d`) switch when running either the `configure`, `build` or `rebuild` commands.

The "binding.gyp" file
----------------------
## The `binding.gyp` file

Previously when node had `node-waf` you had to write a `wscript` file. The
replacement for that is the `binding.gyp` file, which describes the configuration
to build your module in a JSON-like format. This file gets placed in the root of
your package, alongside the `package.json` file.
A `binding.gyp` file describes the configuration to build your module, in a
JSON-like format. This file gets placed in the root of your package, alongside
`package.json`.

A barebones `gyp` file appropriate for building a node addon looks like:
A barebones `gyp` file appropriate for building a Node.js addon could look like:

``` python
{
Expand All @@ -147,8 +136,7 @@ Some additional resources for addons and writing `gyp` files:
* [*"binding.gyp" files out in the wild* wiki page](https://github.com/nodejs/node-gyp/wiki/%22binding.gyp%22-files-out-in-the-wild)


Commands
--------
## Commands

`node-gyp` responds to the following commands:

Expand All @@ -159,86 +147,74 @@ Commands
| `clean` | Removes the `build` directory if it exists
| `configure` | Generates project build files for the current platform
| `rebuild` | Runs `clean`, `configure` and `build` all in a row
| `install` | Installs node header files for the given version
| `list` | Lists the currently installed node header versions
| `remove` | Removes the node header files for the given version
| `install` | Installs Node.js header files for the given version
| `list` | Lists the currently installed Node.js header versions
| `remove` | Removes the Node.js header files for the given version


Command Options
--------
## Command Options

`node-gyp` accepts the following command options:

| **Command** | **Description**
|:----------------------------------|:------------------------------------------
| `-j n`, `--jobs n` | Run make in parallel
| `--target=v6.2.1` | Node version to build for (default=process.version)
| `-j n`, `--jobs n` | Run `make` in parallel
| `--target=v6.2.1` | Node.js version to build for (default is `process.version`)
| `--silly`, `--loglevel=silly` | Log all progress to console
| `--verbose`, `--loglevel=verbose` | Log most progress to console
| `--silent`, `--loglevel=silent` | Don't log anything to console
| `debug`, `--debug` | Make Debug build (default=Release)
| `debug`, `--debug` | Make Debug build (default is `Release`)
| `--release`, `--no-debug` | Make Release build
| `-C $dir`, `--directory=$dir` | Run command in different directory
| `--make=$make` | Override make command (e.g. gmake)
| `--make=$make` | Override `make` command (e.g. `gmake`)
| `--thin=yes` | Enable thin static libraries
| `--arch=$arch` | Set target architecture (e.g. ia32)
| `--tarball=$path` | Get headers from a local tarball
| `--devdir=$path` | SDK download directory (default=~/.node-gyp)
| `--devdir=$path` | SDK download directory (default is `~/.node-gyp`)
| `--ensure` | Don't reinstall headers if already present
| `--dist-url=$url` | Download header tarball from custom URL
| `--proxy=$url` | Set HTTP proxy for downloading header tarball
| `--cafile=$cafile` | Override default CA chain (to download tarball)
| `--nodedir=$path` | Set the path to the node source code
| `--python=$path` | Set path to the python (2) binary
| `--msvs_version=$version` | Set Visual Studio version (win)
| `--solution=$solution` | Set Visual Studio Solution version (win)


Configuration
--------

__`node-gyp` responds to environment variables or `npm` configuration__
1. Environment variables take the form `npm_config_OPTION_NAME` for any of the
options listed above (dashes in option names should be replaced by underscores).
These work also when `node-gyp` is invoked directly:
`$ export npm_config_devdir=/tmp/.gyp`
or on Windows
`> set npm_config_devdir=c:\temp\.gyp`
2. As `npm` configuration, variables take the form `OPTION_NAME`.
This way only works when `node-gyp` is executed by `npm`:
`$ npm config set [--global] devdir /tmp/.gyp`
`$ npm i buffertools`



License
-------

(The MIT License)

Copyright (c) 2012 Nathan Rajlich &lt;nathan@tootallnate.net&gt;

Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
'Software'), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:

The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.


[python-v2.7.10]: https://www.python.org/downloads/release/python-2710/
[msvc2013]: https://www.microsoft.com/en-gb/download/details.aspx?id=44914
[win7sdk]: https://www.microsoft.com/en-us/download/details.aspx?id=8279
[compiler update for the Windows SDK 7.1]: https://www.microsoft.com/en-us/download/details.aspx?id=4422
| `--python=$path` | Set path to the Python 2 binary
| `--msvs_version=$version` | Set Visual Studio version (Windows only)
| `--solution=$solution` | Set Visual Studio Solution version (Windows only)

## Configuration

### Environment variables

Use the form `npm_config_OPTION_NAME` for any of the command options listed
above (dashes in option names should be replaced by underscores).

For example, to set `devdir` equal to `/tmp/.gyp`, you would:

Run this on Unix:

```bash
$ export npm_config_devdir=/tmp/.gyp
```

Or this on Windows:

```console
> set npm_config_devdir=c:\temp\.gyp
```

### `npm` configuration

Use the form `OPTION_NAME` for any of the command options listed above.

For example, to set `devdir` equal to `/tmp/.gyp`, you would run:

```bash
$ npm config set [--global] devdir /tmp/.gyp
```

**Note:** Configuration set via `npm` will only be used when `node-gyp`
is run via `npm`, not when `node-gyp` is run directly.

## License

`node-gyp` is available under the MIT license. See the [LICENSE
file](LICENSE) for details.

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