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256 lines
10 KiB
# `node-gyp` - Node.js native addon build tool |
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[](https://github.com/nodejs/node-gyp/actions?query=workflow%3ATests+branch%3Amaster) |
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`node-gyp` is a cross-platform command-line tool written in Node.js for |
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compiling native addon modules for Node.js. It contains a vendored copy of the |
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[gyp-next](https://github.com/nodejs/gyp-next) project that was previously used |
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by the Chromium team, extended to support the development of Node.js native addons. |
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Note that `node-gyp` is _not_ used to build Node.js itself. |
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Multiple target versions of Node.js are supported (i.e. `0.8`, ..., `4`, `5`, `6`, |
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etc.), regardless of what version of Node.js is actually installed on your system |
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(`node-gyp` downloads the necessary development files or headers for the target version). |
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## Features |
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* The same build commands work on any of the supported platforms |
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* Supports the targeting of different versions of Node.js |
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## Installation |
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You can install `node-gyp` using `npm`: |
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``` bash |
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npm install -g node-gyp |
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``` |
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Depending on your operating system, you will need to install: |
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### On Unix |
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* Python v3.6, v3.7, v3.8, or v3.9 |
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* `make` |
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* A proper C/C++ compiler toolchain, like [GCC](https://gcc.gnu.org) |
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### On macOS |
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**ATTENTION**: If your Mac has been _upgraded_ to macOS Catalina (10.15), please read [macOS_Catalina.md](macOS_Catalina.md). |
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* Python v3.6, v3.7, v3.8, or v3.9 |
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* [Xcode](https://developer.apple.com/xcode/download/) |
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* 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`. |
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### On Windows |
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Install the current version of Python from the [Microsoft Store package](https://docs.python.org/3/using/windows.html#the-microsoft-store-package). |
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Install tools and configuration manually: |
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* Install Visual C++ Build Environment: [Visual Studio Build Tools](https://visualstudio.microsoft.com/thank-you-downloading-visual-studio/?sku=BuildTools) |
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(using "Visual C++ build tools" workload) or [Visual Studio Community](https://visualstudio.microsoft.com/thank-you-downloading-visual-studio/?sku=Community) |
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(using the "Desktop development with C++" workload) |
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* Launch cmd, `npm config set msvs_version 2017` |
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If the above steps didn't work for you, please visit [Microsoft's Node.js Guidelines for Windows](https://github.com/Microsoft/nodejs-guidelines/blob/master/windows-environment.md#compiling-native-addon-modules) for additional tips. |
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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". |
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### Configuring Python Dependency |
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`node-gyp` requires that you have installed a compatible version of Python, one of: v3.6, v3.7, |
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v3.8, or v3.9. If you have multiple Python versions installed, you can identify which Python |
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version `node-gyp` should use in one of the following ways: |
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1. by setting the `--python` command-line option, e.g.: |
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``` bash |
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node-gyp <command> --python /path/to/executable/python |
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``` |
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2. If `node-gyp` is called by way of `npm`, *and* you have multiple versions of |
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Python installed, then you can set `npm`'s 'python' config key to the appropriate |
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value: |
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``` bash |
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npm config set python /path/to/executable/python |
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``` |
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3. If the `PYTHON` environment variable is set to the path of a Python executable, |
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then that version will be used, if it is a compatible version. |
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4. If the `NODE_GYP_FORCE_PYTHON` environment variable is set to the path of a |
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Python executable, it will be used instead of any of the other configured or |
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builtin Python search paths. If it's not a compatible version, no further |
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searching will be done. |
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### Build for Third Party Node.js Runtimes |
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When building modules for thid party Node.js runtimes like Electron, which have |
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different build configurations from the official Node.js distribution, you |
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should use `--dist-url` or `--nodedir` flags to specify the headers of the |
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runtime to build for. |
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Also when `--dist-url` or `--nodedir` flags are passed, node-gyp will use the |
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`config.gypi` shipped in the headers distribution to generate build |
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configurations, which is different from the default mode that would use the |
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`process.config` object of the running Node.js instance. |
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Some old versions of Electron shipped malformed `config.gypi` in their headers |
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distributions, and you might need to pass `--force-process-config` to node-gyp |
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to work around configuration errors. |
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## How to Use |
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To compile your native addon, first go to its root directory: |
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``` bash |
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cd my_node_addon |
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``` |
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The next step is to generate the appropriate project build files for the current |
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platform. Use `configure` for that: |
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``` bash |
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node-gyp configure |
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``` |
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Auto-detection fails for Visual C++ Build Tools 2015, so `--msvs_version=2015` |
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needs to be added (not needed when run by npm as configured above): |
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``` bash |
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node-gyp configure --msvs_version=2015 |
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``` |
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__Note__: The `configure` step looks for a `binding.gyp` file in the current |
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directory to process. See below for instructions on creating a `binding.gyp` file. |
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Now you will have either a `Makefile` (on Unix platforms) or a `vcxproj` file |
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(on Windows) in the `build/` directory. Next, invoke the `build` command: |
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``` bash |
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node-gyp build |
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``` |
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Now you have your compiled `.node` bindings file! The compiled bindings end up |
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in `build/Debug/` or `build/Release/`, depending on the build mode. At this point, |
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you can require the `.node` file with Node.js and run your tests! |
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__Note:__ To create a _Debug_ build of the bindings file, pass the `--debug` (or |
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`-d`) switch when running either the `configure`, `build` or `rebuild` commands. |
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## The `binding.gyp` file |
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A `binding.gyp` file describes the configuration to build your module, in a |
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JSON-like format. This file gets placed in the root of your package, alongside |
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`package.json`. |
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A barebones `gyp` file appropriate for building a Node.js addon could look like: |
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```python |
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{ |
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"targets": [ |
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{ |
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"target_name": "binding", |
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"sources": [ "src/binding.cc" ] |
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} |
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] |
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} |
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``` |
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## Further reading |
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The **[docs](./docs/)** directory contains additional documentation on specific node-gyp topics that may be useful if you are experiencing problems installing or building addons using node-gyp. |
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Some additional resources for Node.js native addons and writing `gyp` configuration files: |
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* ["Going Native" a nodeschool.io tutorial](http://nodeschool.io/#goingnative) |
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* ["Hello World" node addon example](https://github.com/nodejs/node/tree/master/test/addons/hello-world) |
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* [gyp user documentation](https://gyp.gsrc.io/docs/UserDocumentation.md) |
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* [gyp input format reference](https://gyp.gsrc.io/docs/InputFormatReference.md) |
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* [*"binding.gyp" files out in the wild* wiki page](./docs/binding.gyp-files-in-the-wild.md) |
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## Commands |
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`node-gyp` responds to the following commands: |
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| **Command** | **Description** |
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| `help` | Shows the help dialog |
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| `build` | Invokes `make`/`msbuild.exe` and builds the native addon |
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| `clean` | Removes the `build` directory if it exists |
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| `configure` | Generates project build files for the current platform |
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| `rebuild` | Runs `clean`, `configure` and `build` all in a row |
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| `install` | Installs Node.js header files for the given version |
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| `list` | Lists the currently installed Node.js header versions |
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| `remove` | Removes the Node.js header files for the given version |
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## Command Options |
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`node-gyp` accepts the following command options: |
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| **Command** | **Description** |
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| `-j n`, `--jobs n` | Run `make` in parallel. The value `max` will use all available CPU cores |
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| `--target=v6.2.1` | Node.js version to build for (default is `process.version`) |
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| `--silly`, `--loglevel=silly` | Log all progress to console |
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| `--verbose`, `--loglevel=verbose` | Log most progress to console |
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| `--silent`, `--loglevel=silent` | Don't log anything to console |
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| `debug`, `--debug` | Make Debug build (default is `Release`) |
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| `--release`, `--no-debug` | Make Release build |
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| `-C $dir`, `--directory=$dir` | Run command in different directory |
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| `--make=$make` | Override `make` command (e.g. `gmake`) |
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| `--thin=yes` | Enable thin static libraries |
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| `--arch=$arch` | Set target architecture (e.g. ia32) |
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| `--tarball=$path` | Get headers from a local tarball |
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| `--devdir=$path` | SDK download directory (default is OS cache directory) |
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| `--ensure` | Don't reinstall headers if already present |
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| `--dist-url=$url` | Download header tarball from custom URL |
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| `--proxy=$url` | Set HTTP(S) proxy for downloading header tarball |
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| `--noproxy=$urls` | Set urls to ignore proxies when downloading header tarball |
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| `--cafile=$cafile` | Override default CA chain (to download tarball) |
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| `--nodedir=$path` | Set the path to the node source code |
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| `--python=$path` | Set path to the Python binary |
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| `--msvs_version=$version` | Set Visual Studio version (Windows only) |
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| `--solution=$solution` | Set Visual Studio Solution version (Windows only) |
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| `--force-process-config` | Force using runtime's `process.config` object to generate `config.gypi` file |
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## Configuration |
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### Environment variables |
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Use the form `npm_config_OPTION_NAME` for any of the command options listed |
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above (dashes in option names should be replaced by underscores). |
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For example, to set `devdir` equal to `/tmp/.gyp`, you would: |
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Run this on Unix: |
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```bash |
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export npm_config_devdir=/tmp/.gyp |
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``` |
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Or this on Windows: |
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```console |
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set npm_config_devdir=c:\temp\.gyp |
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``` |
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### `npm` configuration |
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Use the form `OPTION_NAME` for any of the command options listed above. |
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For example, to set `devdir` equal to `/tmp/.gyp`, you would run: |
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```bash |
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npm config set [--global] devdir /tmp/.gyp |
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``` |
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**Note:** Configuration set via `npm` will only be used when `node-gyp` |
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is run via `npm`, not when `node-gyp` is run directly. |
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## License |
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`node-gyp` is available under the MIT license. See the [LICENSE |
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file](LICENSE) for details.
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