Xieby1's Nix/NixOS Config

{ pkgs, ... }: {
  programs.neovim = {
    plugins = [{
      # TODO: slow on huge pdf? Remove it, use TypstExportPdfOnSaveEnable?
      plugin = pkgs.vimPlugins.typst-preview-nvim;
      type = "lua";
      config = /*lua*/ ''
        require ('typst-preview').setup({
          open_cmd = "single-tab %s",
        })
      '';
    }];
    extraLuaConfig = /*lua*/ ''
      -- https://www.reddit.com/r/neovim/comments/1iiqwb1/treesitter_injection_and_priority_issues/
      -- The `@lsp.type.comment.typst` can be obtained by hovering on the text, then `:Inspect`
      -- TLDR: I want to use typst injections.scm,
      --       while treesitter default highlight priority is 100,
      --       typst lsp highlight priority is 125.
      -- My failed attempts:
      -- * (#set! priority ): it only works in highlights.scm, does not work in injections.scm
      --   * See: https://github.com/nvim-treesitter/nvim-treesitter/issues/3110
      -- * Turn of tinymist lsp highlight:
      --   * `semanticTokens = "disable"` does not turn off tinymist lsp syntax highlight.
      -- So current my approach is keeping tinymist lsp highlight,
      -- only clear @lsp.type.comment.typst group.
      vim.api.nvim_set_hl(0, "@lsp.type.comment.typst", {})
      vim.lsp.enable('tinymist')
      vim.api.nvim_create_user_command("TypstExportPdfOnSaveEnable", function(args)
        -- more settings see https://github.com/Myriad-Dreamin/tinymist/editors/neovim/Configuration.md
        vim.lsp.config("tinymist", {settings = {exportPdf = "onSave"}})
        -- compile and open pdf in evince
        local file_typ = vim.fn.expand('%:p')
        local file_pdf = vim.fn.expand('%:p:r') .. '.pdf'
        vim.system({'bash', '-c',
          'typst compile ' .. file_typ .. ' ' .. file_pdf .. ';' ..
          'evince ' .. file_pdf
        }, { text = true }, function()end)
        print("exportPdf = onSave")
        -- restart tinymist lsp, see `:h vim.lsp.enable`
        vim.lsp.enable("tinymist", false)
        vim.lsp.enable("tinymist", true)
      end, {})
      -- Why called TypstExportPdfOnSaveXDisable instead of TypstExportPdfOnSaveDisable:
      -- to make TypstExportPdfOnSaveXDisable rank after TypstExportPdfOnSaveEnable
      vim.api.nvim_create_user_command("TypstExportPdfOnSaveXDisable", function(args)
        vim.lsp.config("tinymist", {settings = {exportPdf = "never"}})
        print("exportPdf = never")
        -- restart tinymist lsp, see `:h vim.lsp.enable`
        vim.lsp.enable("tinymist", false)
        vim.lsp.enable("tinymist", true)
      end, {})
    '';
    extraPackages = [ pkgs.pkgsu.tinymist ];
  };
  home.packages = [
    # TODO: use pkgs.typst, once stable nixpkgs reaches typst 0.15.0.
    # NOTE: Why I need typst 0.15.0?
    #  It adds a `path` type (the old `path()` drawing fn was renamed to `curve()`, freeing the name).
    #  A path is resolved relative to the file where it's written, so it can be passed
    #  to 3rd-party libs and still point at my document's files.
    #  Without it, a lib receiving a relative path string would resolve it against the lib's
    #  own location; the workaround is passing `read("./relative_path")`'s result instead.
    pkgs.pkgsu.typst
  ];
}