roslyn.nvim

[SchnozzleCat]

Plugin: roslyn.nvim
Plugin repository: URL to the repository of the plugin
Is the plugin on nixpkgs: No

Extra information

This is the language server that is present in VSCode's C# Extension, and is supposed to replace Omnisharp.

[GaetanLepage]

Hi !
Thank you for this suggestion.
I upstreamed the package to nixpkgs in NixOS/nixpkgs#278511. It should make its way to the unstable channels pretty soon.
Then, you will be able to use it by adding it to extraPlugins.

However, I will not (yet) add support for it explicitly (plugins.roslyn.*) because:

1. It is only compatible with neovim nightly and doesn't seem to work on stable versions.
2. It requires to "build" the language server and I have not checked whether this works fine with nix or if it should be patched/upstreamed specifically.

1 is the real reason. 2 can be solve eventually.
I will close this issue, but please, feel free to re-open when the plugin will be compatible with the latest stable version of neovim.

[KennethHoff]

Hey, the officially-endorsed fork now only requires neovim >= 0.10; Would be interested in looking into this now? :)

[GaetanLepage]

Hey, the officially-endorsed fork now only requires neovim >= 0.10; Would be interested in looking into this now? :)

Ok good to know !
I switched to this new fork: NixOS/nixpkgs#380043
Let's wait for it to make it's way to nixpkgs-unstable.

Would you be interested in making a PR yourself then ?

[KennethHoff]

Would you be interested in making a PR yourself then ?

On the 2 month anniversary of the question, here I am!

I don't know where to put the various bits to make a PR (If you can give me some pointers that'd be great), but I just tried to do it locally and realized it required like no code to add.

programs.nixvim = {
  enable = true;
  extraPlugins = [ pkgs.vimPlugins.roslyn-nvim ];
  extraConfigLua = ''
    require('roslyn').setup({
      -- roslyn-ls adds this command
      exe = 'Microsoft.CodeAnalysis.LanguageServer'
    })
  '';
};
home.packages =  [ pkgs.roslyn-ls ];

[GaetanLepage]

Would you be interested in making a PR yourself then ?

On the 2 month anniversary of the question, here I am!

I don't know where to put the various bits to make a PR (If you can give me some pointers that'd be great), but I just tried to do it locally and realized it required like no code to add.

programs.nixvim = {
enable = true;
extraPlugins = [ pkgs.vimPlugins.roslyn-nvim ];
extraConfigLua = ''
require('roslyn').setup({
-- roslyn-ls adds this command
exe = 'Microsoft.CodeAnalysis.LanguageServer'
})
'';
};
home.packages = [ pkgs.roslyn-ls ];

Good to hear!

Basically, you can have a look at recent PRs that have been made to add plugins.
You can even use our integrated helper to start. First, checkout a new branch and run:

nix develop --command new-plugin roslyn.nvim roslyn-nvim

Then, open the generated files and fill things in.

Importantly, please do not add anything under settingsOptions as we now try to not explicitly declare options anymore.
Simply add a settingsExample attrs and it should be good.

[KennethHoff]

Created the boilerplate just now, #3166.

I didn't really understand how I add dependencies, as I need to install the roslyn-ls package. I guess that's part of the reason #3162 exists.

[MattSturgeon]

I didn't really understand how I add dependencies, as I need to install the roslyn-ls package. I guess that's part of the reason #3162 exists.

You could reference some of the mkPackageOption examples that are removed by #3162. Alternatively you could wait for that PR to land and go from there.

If that's a language server, it may be better to just have an assertion that the relevant plugins.lsp.servers.*.enable option is enabled (and/or mkDefault true it within your plugin), instead of adding a package option.