docs: clean up the native modules documentation (#26813)
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@ -1,8 +1,9 @@
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# Using Native Node Modules
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Native Node modules are supported by Electron, but since Electron is very
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likely to use a different V8 version from the Node binary installed on your
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system, the modules you use will need to be recompiled for Electron. Otherwise,
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Native Node.js modules are supported by Electron, but since Electron has a different
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[application binary interface (ABI)][abi] from a given Node.js binary (due to
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differences such as using Chromium's BoringSSL instead of OpenSSL), the native
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modules you use will need to be recompiled for Electron. Otherwise,
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you will get the following class of error when you try to run your app:
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```sh
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@ -23,9 +24,11 @@ You can install modules like other Node projects, and then rebuild the modules
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for Electron with the [`electron-rebuild`][electron-rebuild] package. This
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module can automatically determine the version of Electron and handle the
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manual steps of downloading headers and rebuilding native modules for your app.
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If you are using [Electron Forge][electron-forge], this tool is used automatically
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in both development mode and when making distributables.
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For example, to install `electron-rebuild` and then rebuild modules with it
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via the command line:
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For example, to install the standalone `electron-rebuild` tool and then rebuild
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modules with it via the command line:
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```sh
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npm install --save-dev electron-rebuild
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@ -33,12 +36,12 @@ npm install --save-dev electron-rebuild
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# Every time you run "npm install", run this:
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./node_modules/.bin/electron-rebuild
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# On Windows if you have trouble, try:
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# If you have trouble on Windows, try:
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.\node_modules\.bin\electron-rebuild.cmd
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```
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For more information on usage and integration with other tools, consult the
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project's README.
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For more information on usage and integration with other tools such as [Electron
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Packager][electron-packager], consult the project's README.
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### Using `npm`
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@ -147,23 +150,25 @@ for an example delay-load hook if you're implementing your own.
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native Node modules with prebuilt binaries for multiple versions of Node
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and Electron.
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If modules provide binaries for the usage in Electron, make sure to omit
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`--build-from-source` and the `npm_config_build_from_source` environment
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variable in order to take full advantage of the prebuilt binaries.
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If the `prebuild`-powered module provide binaries for the usage in Electron,
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make sure to omit `--build-from-source` and the `npm_config_build_from_source`
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environment variable in order to take full advantage of the prebuilt binaries.
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## Modules that rely on `node-pre-gyp`
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The [`node-pre-gyp` tool][node-pre-gyp] provides a way to deploy native Node
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modules with prebuilt binaries, and many popular modules are using it.
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Usually those modules work fine under Electron, but sometimes when Electron uses
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a newer version of V8 than Node and/or there are ABI changes, bad things may
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happen. So in general, it is recommended to always build native modules from
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source code. `electron-rebuild` handles this for you automatically.
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Sometimes those modules work fine under Electron, but when there are no
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Electron-specific binaries available, you'll need to build from source.
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Because of this, it is recommended to use `electron-rebuild` for these modules.
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If you are following the `npm` way of installing modules, then this is done
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by default, if not, you have to pass `--build-from-source` to `npm`, or set the
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`npm_config_build_from_source` environment variable.
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If you are following the `npm` way of installing modules, you'll need to pass
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`--build-from-source` to `npm`, or set the `npm_config_build_from_source`
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environment variable.
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[abi]: https://en.wikipedia.org/wiki/Application_binary_interface
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[electron-rebuild]: https://github.com/electron/electron-rebuild
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[electron-forge]: https://electronforge.io/
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[electron-packager]: https://github.com/electron/electron-packager
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[node-pre-gyp]: https://github.com/mapbox/node-pre-gyp
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