* I'm adding my media library to ipfs. I'll add them in groups over several days. 
What is a good way to add files so that ipfs doesnt have to calculate hash of already added files 
My hierarchy is something like this
Movies
├── 6 Underground (2019)
│  └── 6.Underground.2019.1080p.WEBRip.x264-[YTS.LT].mp4
├── A Bad Moms Christmas (2017)
│  ├── A.Bad.Moms.Christmas.2017.1080p.BluRay.x264-[YTS.AG].en.srt
│  ├── A.Bad.Moms.Christmas.2017.1080p.BluRay.x264-[YTS.AG].mp4
│  ├── fanart.jpg
│  └── poster.jpg
├── Abominable (2019)
│  └── Abominable.2019.1080p.WEBRip.x264-[YTS.LT].mp4