Trouble with treesitter indentation and any kind of formatting.

[Steve-Cooley]

I've patterned my config after the example config provided by NotAShelf.

...
        lsp = {
          enable = true;
          formatOnSave = true;
          lightbulb.enable = true;
          lsplines.enable = true;
          nvim-docs-view.enable = true;
        }; # lsp

...

        treesitter = {
          enable = true;
          indent.enable = true;
        }; # treesitter

...

I think that because I enabled indenting in the treesitter options, it is then applied to all languages that are enabled in the languages section.

Anyway, when I have treesitter indentation enabled, indentation is badly broken. It kind of amplifies indentation, if that makes sense. So if the indentation should be 0, because I'm editing top level stuff, indentation works as it should. However, when I expect indentation to be at two spaces, creating a new line with either o or simply hitting enter to create a new line, it places the cursor at column 17. This gets worse as indentation level increases. I just tested this in a nix file, but other languages are similarly broken.

Then there's the second problem. None of formatting options I've tried work. As you can see above, I have formatOnSave enabled. I've also tried enabling conform, both with and without formatOnSave enabled, and I couldn't get anything to work.

I don't know if these problems are connected. I'm too inexperienced to know if treesitter is really working at all. But I can say LSPs are working.

Anyway, this is all complex, and might not be a problem with my config, NVF, or Nix, but the result of upstream problems. Thanks in advance for any help!

[NotAShelf]

I have not had a non-nix Neovim setup since 0.9, but I suspect that this is from the default indentation of Neovim. With 0.10 Neovim gained Editorconfig support, and I encourage you to use it (or per-buffer indentation settings) to ensure that languages perform as expected.

There is also the possibility that this is a bug/"feature" in one of the grammars that you are using. I only noticed the indentation issue in Nix, but it was resolved by telling Neovim to set shiftwidth/tabwidth. Let me know if this fixes your issue, otherwise I can look at shipping a native solution.

[Steve-Cooley]

Thanks for the response. @venkyr77 's response was a solution for me. I'm not sure what the underlying problem is though.

Also, thanks for making NVF!

[venkyr77]

I face this issue too, treesitter.indent.enable = true seems to be adding more indentation than what is needed. I was able to get a hack that fixes indentation issues for me.

Hack - use guess-indent-nvim with treesitter.indent.enable = true

{pkgs, ...}: {
  config.vim.extraPlugins."guess-indent" = {
    package = pkgs.vimPlugins.guess-indent-nvim;
    setup =
      # lua
      ''
        require("guess-indent").setup()
      '';
  };
}

I need both of them to be setup (that is guess-indent-nvim + treesitter.indent.enable = true), without any of this, my indentation is literally unusable :(

[Steve-Cooley]

Thank you! That worked for me too. I did find one exception, the kind of parameter list at the beginning of a nix file, it doesn't indent that correctly, but I'll take the win!

Thanks again!