feat: replace nix-doom-emacs with hlissner's config

home/base/desktop/emacs/default.nix

@@ -1,25 +1,73 @@
+# ==============================================
+# based on doomemacs's auther's config:
+#   https://github.com/hlissner/dotfiles/blob/master/modules/editors/emacs.nix
 {
-  pkgs,
   config,
   lib,
-  nix-doom-emacs,
+  pkgs,
   ...
 }:
 with lib; let
-  cfg = config.modules.desktop.emacs;
+  cfg = config.modules.editors.emacs;
+  envExtra = ''
+    export PATH="$XDG_CONFIG_HOME/emacs/bin:$PATH"
+  '';
 in {
-  imports = [nix-doom-emacs.hmModule];
-
-  options.modules.desktop.emacs = {
+  options.modules.editors.emacs = {
     enable = mkEnableOption "Emacs Editor";
+    doom = {
+      enable = mkEnableOption "Doom Emacs";
+      repoUrl = mkOption {
+        type = types.str;
+        default = "https://github.com/doomemacs/doomemacs";
+      };
+    };
   };
 
   config = mkIf cfg.enable {
-    programs.doom-emacs = {
-      enable = true;
-      # Directory containing your config.el, init.el and packages.el files
-      doomPrivateDir = ./doom.d;
-      emacsPackage = pkgs.emacs-nox;
+    home.packages = with pkgs; [
+      ## Emacs itself
+      binutils # native-comp needs 'as', provided by this
+      # 28.2 + native-comp
+      ((emacsPackagesFor emacs-unstable-nox).emacsWithPackages
+        (epkgs: [epkgs.vterm]))
+      emacs-all-the-icons-fonts
+
+      ## Doom dependencies
+      git
+      (ripgrep.override {withPCRE2 = true;})
+      gnutls # for TLS connectivity
+
+      ## Optional dependencies
+      fd # faster projectile indexing
+      imagemagick # for image-dired
+      zstd # for undo-fu-session/undo-tree compression
+
+      ## Module dependencies
+      # :checkers spell
+      (aspellWithDicts (ds: with ds; [en en-computers en-science]))
+      # :tools editorconfig
+      editorconfig-core-c # per-project style config
+      # :tools lookup & :lang org +roam
+      sqlite
+      # :lang latex & :lang org (latex previews)
+      texlive.combined.scheme-medium
+    ];
+
+    programs.bash.bashrcExtra = envExtra;
+    programs.zsh.envExtra = envExtra;
+    # allow fontconfig to discover fonts and configurations installed through `home.packages`
+    fonts.fontconfig.enable = true;
+
+    xdg.configFile."doom".source = ./doom;
+
+    home.activation = mkIf cfg.doom.enable {
+      installDoomEmacs = lib.hm.dag.entryBefore ["checkLinkTargets"] ''
+        if [ ! -d "${config.xdg.configHome}/emacs" ]; then
+           echo "Installing Doom Emacs..."
+           ${pkgs.git}/bin/git clone --depth=1 --single-branch "${cfg.doom.repoUrl}" "${config.xdg.configHome}/emacs"
+        fi
+      '';
     };
   };
 }