chromeLocations.ts

export function chromeLocation(): string | undefined {
    var osx = process.platform === 'darwin';
    var win = process.platform === 'win32';
    var other = !osx && !win;
    var fs = require('fs');

    if (other) {
        const which = require('which');
        try {
            return which.sync('google-chrome');
        } catch (e) {
            try {
                return which.sync('google-chrome-stable');
            } catch (e) {
                return;
            }
        }
    } else if (osx) {
        var regPath = '/Applications/Google Chrome.app/Contents/MacOS/Google Chrome';
        var altPath = require('userhome')(regPath.slice(1));

        return fs.existsSync(regPath) ? regPath : altPath;
    } else {
        var suffix = '\\Google\\Chrome\\Application\\chrome.exe';
        var prefixes = [process.env.LOCALAPPDATA, process.env.PROGRAMFILES, process.env['PROGRAMFILES(X86)']];

        for (var i = 0; i < prefixes.length; i++) {
            var exe = prefixes[i] + suffix;
            if (fs.existsSync(exe)) {
                return exe;
            }
        }
    }
}