config.js

console.log('process.env.npm_package_config_MODE:');
console.log(process.env.npm_package_config_MODE);
if (process.env.npm_package_config_MODE)
        process.env['MODE'] = process.env.npm_package_config_MODE;


console.log('process.env.npm_package_config_USE_SAUCE:');
console.log(process.env.npm_package_config_USE_SAUCE);
if (process.env.npm_package_config_USE_SAUCE)
        process.env['USE_SAUCE'] = process.env.npm_package_config_USE_SAUCE;

console.log("process.env.USE_SAUCE:");
console.log(process.env.USE_SAUCE);

console.log("process.env.MODE:");
console.log(process.env.MODE);

console.log("process.env.GITHUB_TOKEN:");
console.log(process.env.GITHUB_TOKEN);

console.log("process.env.TRAVIS_COMMIT:");
console.log(process.env.TRAVIS_COMMIT);

console.log("process.env.TRAVIS_JOB_NUMBER:");
console.log(process.env.TRAVIS_JOB_NUMBER);

var config;

if (process.env.MODE == 'chromeApp'){
    config = {
        chromeExtension: true,
        browser: {
            browserName:'chrome',
            chromeOptions: {'args' : ['--load-extension=' + process.cwd() + '/dist/chrome-app']}
        }
    };


    if (process.env.USE_SAUCE){
        console.log('using sauce');
        var fs = require('fs');

        var buf = fs.readFileSync('dist/Readium.crx');
        var base64Ext = buf.toString('base64');

        delete config.browser.chromeOptions.args;

        config.browser.chromeOptions.extensions = [base64Ext];
        config.browser.version = '42';
        console.log('...');
    }
}
else {
    config = {
        browser : {
            browserName: process.env.MODE,
        },
        url: 'http://127.0.0.1:8080/index.html'
    };
}

module.exports = config;