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#!/usr/bin/env node
// @ts-check
const { execSync } = require('child_process');
const electronPath = require('electron');
const { writeFile } = require('fs/promises');
const path = require('path');
/**
* Returns versions of electron vendors
* The performance of this feature is very poor and can be improved
* @see https://github.com/electron/electron/issues/28006
*
* @returns {NodeJS.ProcessVersions}
*/
function getVendors() {
const output = execSync(`${electronPath} -p "JSON.stringify(process.versions)"`, {
env: {'ELECTRON_RUN_AS_NODE': '1'},
encoding: 'utf-8',
});
return JSON.parse(output);
}
/**
* Generates the `.browserlistrc` and `.electron-vendors.cache.json` files.
*
* @returns Promise<void>
*/
function updateVendors() {
const electronRelease = getVendors();
const nodeMajorVersion = electronRelease.node.split('.')[0];
const chromeMajorVersion = electronRelease.v8.split('.')[0] + electronRelease.v8.split('.')[1];
const browserslistrcPath = path.resolve(process.cwd(), '.browserslistrc');
return Promise.all([
writeFile(
'./.electron-vendors.cache.json',
JSON.stringify({
chrome: chromeMajorVersion,
node: nodeMajorVersion,
}, null, 2) + '\n',
),
writeFile(browserslistrcPath, `Chrome ${chromeMajorVersion}\n`, 'utf8'),
]);
}
updateVendors().catch((err) => {
console.error(err);
process.exit(1);
});
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