Help - Generating manifest

[MrRoco]

Hello Just a question.

I want a manifest like following:

{
"assets": {
"general": {
"js": [
"/assets/js/min/scripts.512bbf3f.min.js"
],
"css": [
"/assets/css/style.686ae088.min.css"
]
},
"above_the_fold": {
"css": [
"/assets/css/above-the-fold.cb078d55.min.css"
],
"js": []
}
}
}

Is there a way to achieve this, just stepped from grunt to gulp ;p