share/cfg/helix.nix


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{ pkgs, ... }: {
  programs.helix = {
    extraPackages = with pkgs; [
      rust-analyzer
      rustfmt
      nil
      nixfmt-rfc-style
      python311Packages.python-lsp-server
      clang-tools
      black
      emmet-ls
      vscode-langservers-extracted
      nodePackages.typescript-language-server
      nodePackages."@astrojs/language-server"
    ];

    settings = {
      theme = "tokyonight";
      editor = {
        line-number = "relative";
        cursor-shape = {
          insert = "bar";
          normal = "block";
          select = "underline";
        };
        whitespace.render = {
          space = "all";
          tab = "all";
          newline = "none";
        };
        whitespace.characters = {
          space = "·";
          nbsp = "⍽";
          tab = "→";
          newline = "⏎";
          tabpad = "·"; # Tabs will look like "→···" (depending on tab width)
        };
        cursorline = true;
        lsp.display-messages = true;
      };
    };

    languages = {
      language-server.emmet-ls = {
        command = "emmet-ls";
        args = [ "--stdio" ];
      };
      language-server.astro-ls = {
        command = "astro-ls";
        args = [ "--stdio" ];
        config = {
          typescript.tsdk = "${pkgs.typescript}/lib/node_modules/typescript/lib";
          environment = "node";
        };
      };

      language = [
        {
          name = "html";
          language-servers = [ "vscode-html-language-server" "emmet-ls" ];
        }
        {
          name = "astro";
          scope = "source.astro";
          injection-regex = "astro";
          file-types = [ "astro" ];
          roots = [ "package.json" "astro.config.mjs" ];
          language-servers = [ "astro-ls" ];
          auto-format = true;
        }
      ];
    };
  };
}