Including OS-managed plugins (from rtp)

[shazow]

Hi there, I have treesitter managed by my nix package manager, but I'd like to have a bunch of plugins that depend on treesitter to be loaded by lazy, for example:

{ "RRethy/nvim-treesitter-textsubjects" },

Normally it would be included in my runtimepath, and with packer I could just assume it would be injected before packer-managed plugins are loaded.

With lazy, it seems the lazy-managed plugins are loaded first and I get a bunch of errors and missing nvim-treesitter namespaces.

Is there a way to tell lazy to load my OS-managed treesitter before the lazy loaded plugins? Preferably by avoiding nuking it? (Perhaps there's a hook to let me write more selective rtp reset code?)

I tried:

require("lazy").setup("plugins", {
  performance = {
    reset_packpath = false,
    rtp = { reset = false }
  },
})

which fixes treesitter not being available but removes a lot of the speed benefits.

I assume the way forward is to add the path to performance.rtp.paths, but it's a bit tricky because the path is not stable (managed by nix).

Is there any other way to do this that I'm not thinking of?

My full config is here: shazow/nixfiles#10

[abeldekat]

Hello @shazow,

Lazy.nvim has a dir property.
Using an environment variable pointing to the path managed by the nix package manager, this should work:

lua/plugins/your_treesitter.lua:

  {
    "nvim-treesitter/nvim-treesitter",
    dir = vim.env.YOUR_NIX_LOCATION .. "/nvim-treesitter",
  }

Now, lazy.nvim only manages the loading of the plugin, and assumes its present at the location specified.

Best regards!

[abeldekat]

You're welcome. I am curious to know if this approach is sufficient for your use case.

[shazow]

I'm merely an intermediate nix'er so still having some issues getting the appropriate path generated at build time and put into the right place, but feels like I'm close. I'll follow up if I have a working example that others can use. :)

[shazow]

Okay, I ended up with this -- which is probably overly generalized but it should let me mix and match nix-managed plugins into lazy.nvim-compatible setup tables:

  "nvim/lua/plugins/managed.lua".text = let
      vimLazyPlugins = map (plugin: {
        name = "${plugin.src.owner}/${plugin.src.repo}";
        dir = "${plugin.out}";
      }) vimPlugins;
      renderedPlugins = builtins.map
        (p: ''{ "${p.name}", dir = "${p.dir}"}'')
        vimLazyPlugins;
    in ''
    return {
      ${builtins.concatStringsSep ",\n  " renderedPlugins}
    }
    '';

This produces:

$ cat ~/.config/nvim/lua/plugins/managed.lua
return {
  { "nvim-treesitter/nvim-treesitter", dir = "/nix/store/ahnk6krv59jycrpm1d6v7gqd39in1bly-vimplugin-nvim-treesitter-2023-08-25"}
}

[shazow]

Thank you again for the dir pointer, it was exactly what I needed. :)

[abeldekat]

That's great! Thanks!