nodejs/node-gyp


Node.js native addon build tool

License: MIT

Language: Python

Keywords: gyp, node, node-addon, node-gyp, nodejs


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 contains a fork of the gyp project that was previously used by the Chromium team, extended to support the development of Node.js native addons.

Note that node-gyp is not used to build Node.js itself.

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

  • The same build commands work on any of the supported platforms
  • Supports the targetting of different versions of Node.js

Installation

You can install node-gyp using npm:

$ npm install -g node-gyp

Depending on your operating system, you will need to install:

On Unix

  • Python v2.7, v3.5, v3.6, or v3.7
  • make
  • A proper C/C++ compiler toolchain, like GCC

On macOS

  • Python v2.7, v3.5, v3.6, or v3.7
  • Xcode
    • You also need to install the XCode Command Line Tools by running xcode-select --install. Alternatively, if you already have the full Xcode installed, you can find them under the menu Xcode -> Open Developer Tool -> More Developer Tools.... This step will install clang, clang++, and make.
  • If your Mac has been upgraded to macOS Catalina (10.15), please read macOS_Catalina.md.

On Windows

Install the current version of Python from the Microsoft Store package.

Option 1

Install all the required tools and configurations using Microsoft's windows-build-tools using npm install --global --production windows-build-tools from an elevated PowerShell or CMD.exe (run as Administrator).

Option 2

Install tools and configuration manually:

If the above steps didn't work for you, please visit Microsoft's Node.js Guidelines for Windows for additional tips.

To target native ARM64 Node.js on Windows 10 on ARM, add the components "Visual C++ compilers and libraries for ARM64" and "Visual C++ ATL for ARM64".

Configuring Python Dependency

node-gyp requires that you have installed a compatible version of Python, one of: v2.7, v3.5, v3.6, or v3.7. If you have multiple Python versions installed, you can identify which Python version node-gyp should use in one of the following ways:

  1. by setting the --python command-line option, e.g.:
$ node-gyp <command> --python /path/to/executable/python
  1. 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:
$ npm config set python /path/to/executable/python
  1. If the PYTHON environment variable is set to the path of a Python executable, then that version will be used, if it is a compatible version.

  2. If the NODE_GYP_FORCE_PYTHON environment variable is set to the path of a Python executable, it will be used instead of any of the other configured or builtin Python search paths. If it's not a compatible version, no further searching will be done.

How to Use

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

$ cd my_node_addon

The next step is to generate the appropriate project build files for the current platform. Use configure for that:

$ node-gyp configure

Auto-detection fails for Visual C++ Build Tools 2015, so --msvs_version=2015 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 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:

$ 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.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 commands.

The binding.gyp 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.js addon could look like:

{
  "targets": [
    {
      "target_name": "binding",
      "sources": [ "src/binding.cc" ]
    }
  ]
}

Further reading

Some additional resources for Node.js native addons and writing gyp configuration files:

Commands

node-gyp responds to the following commands:

Command Description
help Shows the help dialog
build Invokes make/msbuild.exe and builds the native addon
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.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

node-gyp accepts the following command options:

Command Description
-j n, --jobs n Run make in parallel. The value max will use all available CPU cores
--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 is Release)
--release, --no-debug Make Release build
-C $dir, --directory=$dir Run command in different directory
--make=$make Override make command (e.g. gmake)
--thin=yes Enable thin static libraries
--arch=$arch Set target architecture (e.g. ia32)
--tarball=$path Get headers from a local tarball
--devdir=$path SDK download directory (default is OS cache directory)
--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=$path Set path to the Python binary
--msvs_version=$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:

$ export npm_config_devdir=/tmp/.gyp

Or this on Windows:

> 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:

$ 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 for details.

Project Statistics

Sourcerank 19
Repository Size 3.59 MB
Stars 5,761
Forks 1,002
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Open issues 42
Dependencies 18
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v6.0.1 November 01, 2019
v6.0.0 October 04, 2019
v5.0.5 October 04, 2019
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v5.0.2 June 27, 2019
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