const merge = require('merge-stream');

const stream = merge();

configs.forEach(conf => {
    stream.add(exec(conf.input));
    // exec is essentially pipes vfs.src() through custom plugin
});

stream.pipe(through2.obj((file, encoding, cb) => {
    if (!file.isNull()) {
        const relativePath = file.path.replace(process.cwd() + '/', '');

        process.stdout.cursorTo(0);
        process.stdout.write(chalk.green(`Writing ${relativePath}`));
        process.stdout.clearLine(1);
    }

    cb();
}));