Function bump

gulpfile.js:33–41

(cb)

};

function bump(cb) {
    gulp.src('./package.json')
        .pipe(jsonEditor({
            revision: String( Date.now() )
        }))
        .pipe(gulp.dest('./'));

    cb();
}

function coverage(cb) {
    const cmd = util.format('./node_modules/.bin/nyc --reporter=html %s -T', options.nodeBin);