time-to-botec

windows.js (1348B)

---

 import {execa} from 'execa';
 
 // Windows doesn't have browser IDs in the same way macOS/Linux does so we give fake
 // ones that look real and match the macOS/Linux versions for cross-platform apps.
 const windowsBrowserProgIds = {
 	AppXq0fevzme2pys62n3e0fbqa7peapykr8v: {name: 'Edge', id: 'com.microsoft.edge.old'},
 	MSEdgeDHTML: {name: 'Edge', id: 'com.microsoft.edge'}, // On macOS, it's "com.microsoft.edgemac"
 	MSEdgeHTM: {name: 'Edge', id: 'com.microsoft.edge'}, // Newer Edge/Win10 releases
 	'IE.HTTP': {name: 'Internet Explorer', id: 'com.microsoft.ie'},
 	FirefoxURL: {name: 'Firefox', id: 'org.mozilla.firefox'},
 	ChromeHTML: {name: 'Chrome', id: 'com.google.chrome'},
 };
 
 export class UnknownBrowserError extends Error {}
 
 export default async function defaultBrowser(_execa = execa) {
 	const result = await _execa('reg', [
 		'QUERY',
 		' HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\Shell\\Associations\\UrlAssociations\\http\\UserChoice',
 		'/v',
 		'ProgId',
 	]);
 
 	const match = /ProgId\s*REG_SZ\s*(?<id>\S+)/.exec(result.stdout);
 	if (!match) {
 		throw new UnknownBrowserError(`Cannot find Windows browser in stdout: ${JSON.stringify(result.stdout)}`);
 	}
 
 	const {id} = match.groups;
 
 	const browser = windowsBrowserProgIds[id];
 	if (!browser) {
 		throw new UnknownBrowserError(`Unknown browser ID: ${id}`);
 	}
 
 	return browser;
 }