@electron/get

> Download Electron release artifacts


Usage

For full API details, see the API documentation.

$3

``typescript
import { download } from '@electron/get';

// NB: Use this syntax within an async function, Node does not have support for
// top-level await as of Node 12.
const zipFilePath = await download('4.0.4');
`

$3

`typescript
import { downloadArtifact } from '@electron/get';

// NB: Use this syntax within an async function, Node does not have support for
// top-level await as of Node 12.
const zipFilePath = await downloadArtifact({
version: '4.0.4',
platform: 'darwin',
artifactName: 'electron',
artifactSuffix: 'symbols',
arch: 'x64',
});
`

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To specify another location to download Electron assets from, the following options are
available:

* mirrorOptions Object
* mirror String (optional) - The base URL of the mirror to download from.
* nightlyMirror String (optional) - The Electron nightly-specific mirror URL.
* customDir String (optional) - The name of the directory to download from, often scoped by version number.
* customFilename String (optional) - The name of the asset to download.
* resolveAssetURL Function (optional) - A function allowing customization of the url used to download the asset.

Anatomy of a download URL, in terms of mirrorOptions:

`
https://github.com/electron/electron/releases/download/v4.0.4/electron-v4.0.4-linux-x64.zip
| | | |
------------------------------------------------------- -----------------------------
| |
mirror / nightlyMirror | | customFilename
------
||
customDir
`

Example:

`typescript
import { download } from '@electron/get';

const zipFilePath = await download('4.0.4', {
mirrorOptions: {
mirror: 'https://mirror.example.com/electron/',
customDir: 'custom',
customFilename: 'unofficial-electron-linux.zip'
}
});
// Will download from https://mirror.example.com/electron/custom/unofficial-electron-linux.zip

const nightlyZipFilePath = await download('8.0.0-nightly.20190901', {
mirrorOptions: {
nightlyMirror: 'https://nightly.example.com/',
customDir: 'nightlies',
customFilename: 'nightly-linux.zip'
}
});
// Will download from https://nightly.example.com/nightlies/nightly-linux.zip
`

customDir can have the placeholder {{ version }}, which will be replaced by the version
specified (without the leading v). For example:

`javascript
const zipFilePath = await download('4.0.4', {
mirrorOptions: {
mirror: 'https://mirror.example.com/electron/',
customDir: 'version-{{ version }}',
platform: 'linux',
arch: 'x64'
}
});
// Will download from https://mirror.example.com/electron/version-4.0.4/electron-v4.0.4-linux-x64.zip
`

#### Using environment variables for mirror options
Mirror options can also be specified via the following environment variables:
* ELECTRON_CUSTOM_DIR - Specifies the custom directory to download from.
* ELECTRON_CUSTOM_FILENAME - Specifies the custom file name to download.
* ELECTRON_MIRROR - Specifies the URL of the server to download from if the version is not a nightly version.
* ELECTRON_NIGHTLY_MIRROR - Specifies the URL of the server to download from if the version is a nightly version.

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The version downloaded can be overriden by setting the ELECTRON_CUSTOM_VERSION environment variable.
Setting this environment variable will override the version passed in to download or downloadArtifact.

How It Works

This module downloads Electron to a known place on your system and caches it
so that future requests for that asset can be returned instantly. The cache
locations are:

* Linux: $XDG_CACHE_HOME or ~/.cache/electron/
* MacOS: ~/Library/Caches/electron/
* Windows: %LOCALAPPDATA%/electron/Cache or ~/AppData/Local/electron/Cache/

By default, the module uses got as the
downloader. As a result, you can use the same options
via downloadOptions.

$3

By default, a progress bar is shown when downloading an artifact for more than 30 seconds. To
disable, set the ELECTRON_GET_NO_PROGRESS environment variable to any non-empty value, or set
quiet to true in downloadOptions. If you need to monitor progress yourself via the API, set
getProgressCallback in downloadOptions, which has the same function signature as got's
downloadProgress event callback.

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Downstream packages should utilize the initializeProxy function to add HTTP(S) proxy support. If
the environment variable ELECTRON_GET_USE_PROXY is set, it is called automatically.

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debug is used to display logs and messages.
Set the DEBUG=@electron/get*` environment variable to log additional
debug information from this module.