feat: emacs daemon

Justfile

@@ -167,3 +167,16 @@ test-emacs:
 
 test-emacs-clean:
   rm -rf $"($env.HOME)/.config/doom/"
+
+emacs-plist-path := "~/Library/LaunchAgents/org.nix-community.home.emacs.plist"
+
+reload-emacs-cmd := if os() == "macos" {
+    "launchctl unload " + emacs-plist-path
+    + "\n"
+    + "launchctl load " + emacs-plist-path
+  } else {
+    "systemctl --user restart emacs.service"
+  }
+
+reload-emacs:
+  {{reload-emacs-cmd}}

home/base/desktop/editors/emacs/README.md

@@ -13,11 +13,6 @@
 - Emacs Wiki: <https://www.emacswiki.org/emacs/SiteMap>
 - Awesome Emacs: <https://github.com/emacs-tw/awesome-emacs#lsp-client>
 
-Emacs daemon:
-
-- <https://github.com/nix-community/home-manager/blob/master/modules/services/emacs.nix>
-- <https://github.com/LnL7/nix-darwin/blob/1a41453cba42a3a1af2fff003be455ddbd75386c/modules/services/emacs.nix>
-
 ## Install or Update
 
 After deploying this nix flake, run the following command to install or update emacs:

home/base/desktop/editors/emacs/default.nix

@@ -19,9 +19,9 @@ with lib; let
     export PATH="${config.xdg.configHome}/emacs/bin:$PATH"
   '';
   shellAliases = {
-    e = "emacs";
+    e = "emacsclient -c";
-    ediff = ''emacs -nw --eval "(ediff-files \"$1\" \"$2\")"'';
+    ediff = ''emacsclient -c -nw --eval "(ediff-files \"$1\" \"$2\")"'';
-    eman = ''emacs -nw --eval "(switch-to-buffer (man \"$1\"))"'';
+    eman = ''emacsclient -c -nw --eval "(switch-to-buffer (man \"$1\"))"'';
   };
 in {
   options.modules.editors.emacs = {
@@ -31,13 +31,9 @@ in {
     };
   };
 
-  config = mkIf cfg.enable {
+  config = mkIf cfg.enable (mkMerge [
+    {
       home.packages = with pkgs; [
-      ## Emacs itself
-      ((emacsPackagesFor emacs-unstable-nox).emacsWithPackages
-        (epkgs: [
-          epkgs.vterm
-        ]))
         librime
         emacs-all-the-icons-fonts
 
@@ -77,5 +73,40 @@ in {
           ${pkgs.rsync}/bin/rsync -avz --chmod=D2755,F744 ${doomemacs}/ ${config.xdg.configHome}/emacs/
         '';
       };
+    }
+
+    (mkIf pkgs.stdenv.isLinux {
+      services.emacs = {
+        enable = true;
+        package = with pkgs; ((emacsPackagesFor emacs-unstable-pgtk).emacsWithPackages (epkgs: [
+          epkgs.vterm
+        ]));
+        client.enable = true;
+        startWithUserSession = true;
       };
+    })
+
+    (mkIf pkgs.stdenv.isDarwin {
+      launchd.enable = true;
+      launchd.agents.emacs = {
+        enable = true;
+        config = {
+          ProgramArguments = with pkgs; let
+            emacsPkg = (emacsPackagesFor emacs-unstable).emacsWithPackages (epkgs: [
+              epkgs.vterm
+            ]);
+          in [
+            "${pkgs.bash}/bin/bash"
+            "-l"
+            "-c"
+            "${emacsPkg}/bin/emacs --fg-daemon"
+          ];
+          StandardErrorPath = "${config.home.homeDirectory}/Library/Logs/emacs-daemon.stderr.log";
+          StandardOutPath = "${config.home.homeDirectory}/Library/Logs/emacs-daemon.stdout.log";
+          RunAtLoad = true;
+          KeepAlive = true;
+        };
+      };
+    })
+  ]);
 }