Luarocks pyupdater

[teto]

Motivation for this change

I wanted to improve (mostly speed it up) the luarocks updater since I intend to run it more frequently. While this is not the case yet, I converted the shellscript to a python script reusing the kakoune/vim plugin infrastructure. Providing the user with an unifed interface across different ecosystems sound like a good idea where applicable.

I dont say my changes are elegant, I strived to minimize the changes in pluginupdate.py to get some feedback first. I believe a sounder OOP approach can be taken in subsequent steps.

cc @Flakebi

Things done

• Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS linux)
• Built on platform(s)
  • NixOS
  • macOS
  • other Linux distributions
• Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
• Tested compilation of all pkgs that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review wip"
• Tested execution of all binary files (usually in ./result/bin/)
• 21.11 Release Notes (or backporting 21.05 Relase notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
  • (Module updates) Added a release notes entry if the change is significant
  • (Module addition) Added a release notes entry if adding a new NixOS module
• Fits CONTRIBUTING.md.

[teto]

cc @timokau @Mic92 since you've worked the most on this part. I would like to rename the Editor class to something more generic too like EcosystemUpdater/LanguageUpdater.

[teto]

the global lua update had broken several packages, I've pinned versions to keep nixpkgs-review happy

[teto]

I've added more changes on a separate branch teto#4

[teto]

Kinda excited to use an unified interface to update different ecosystems. I will follow up with PRs if this gets merged but I dont want to merge it without the approval of any of the other persons using the update.py

[teto]

I've tested and vim update.py as well as luarocks updater work fine. I will merge and open another PR to improve the interface.

[teto]

wip follow up of #133296

[timokau]

I didn't / don't have the spare capacity to review this right now, but thank you for working on it. The lua neovim plugin ecosystem seems to be growing fast.

[teto]

I am working to improve luarocks2nix to better handle bare git repos so that the vim-plugin infra can handle lua plugin betters (for neovim). Right now lua plugins work but they have to be uploaded to luarocks.org and I dont expect vim plugin authors to do that, hence my changes.

[timokau]

I see. Thanks again for pushing this forward :)