I wonder how hard would it be to write and update script. please don't merge just yet, I will try to come up with some update script.

The update script currently in the repository works fine in terms of updating, I usually just copy over the updated versions and hashes when I spot an update when I run it.

This is what I wrote for our vim plugins: https://github.com/NixOS/nixpkgs/blob/master/pkgs/misc/vim-plugins/update.py

Is anyone interested in continuing with this PR?

@aanderse i just pushed the code where i stopped working on this. maybe it will inspire you to continue. i switched to back to neovim since coc.nvim plugin gives me everything that vscode does. i will close this PR but feel free to take my work and continue it.

Thanks for the update @garbas!