nixos/clipcat: add user service module

nixos/doc/manual/from_md/release-notes/rl-2111.section.xml

@@ -40,6 +40,13 @@
           <link xlink:href="options.html#opt-services.brtbk.instances">services.btrbk</link>.
         </para>
       </listitem>
+      <listitem>
+        <para>
+          <link xlink:href="https://github.com/xrelkd/clipcat/">clipcat</link>,
+          an X11 clipboard manager written in Rust. Available at
+          [services.clipcat](options.html#o pt-services.clipcat.enable).
+        </para>
+      </listitem>
       <listitem>
         <para>
           <link xlink:href="https://github.com/maxmind/geoipupdate">geoipupdate</link>,

nixos/doc/manual/release-notes/rl-2111.section.md

@@ -13,6 +13,9 @@ In addition to numerous new and upgraded packages, this release has the followin
 
 - [btrbk](https://digint.ch/btrbk/index.html), a backup tool for btrfs subvolumes, taking advantage of btrfs specific capabilities to create atomic snapshots and transfer them incrementally to your backup locations. Available as [services.btrbk](options.html#opt-services.brtbk.instances).
 
+- [clipcat](https://github.com/xrelkd/clipcat/), an X11 clipboard manager written in Rust. Available at [services.clipcat](options.html#o
+pt-services.clipcat.enable).
+
 - [geoipupdate](https://github.com/maxmind/geoipupdate), a GeoIP database updater from MaxMind. Available as [services.geoipupdate](options.html#opt-services.geoipupdate.enable).
 
 - [Kea](https://www.isc.org/kea/), ISCs 2nd generation DHCP and DDNS server suite. Available at [services.kea](options.html#opt-services.kea).

nixos/modules/module-list.nix

@@ -475,6 +475,7 @@
   ./services/misc/calibre-server.nix
   ./services/misc/cfdyndns.nix
   ./services/misc/clipmenu.nix
+  ./services/misc/clipcat.nix
   ./services/misc/cpuminer-cryptonight.nix
   ./services/misc/cgminer.nix
   ./services/misc/confd.nix

nixos/modules/services/misc/clipcat.nix

@@ -0,0 +1,31 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.services.clipcat;
+in {
+
+  options.services.clipcat= {
+    enable = mkEnableOption "Clipcat clipboard daemon";
+
+    package = mkOption {
+      type = types.package;
+      default = pkgs.clipcat;
+      defaultText = "pkgs.clipcat";
+      description = "clipcat derivation to use.";
+    };
+  };
+
+  config = mkIf cfg.enable {
+    systemd.user.services.clipcat = {
+      enable      = true;
+      description = "clipcat daemon";
+      wantedBy = [ "graphical-session.target" ];
+      after    = [ "graphical-session.target" ];
+      serviceConfig.ExecStart = "${cfg.package}/bin/clipcatd --no-daemon";
+    };
+
+    environment.systemPackages = [ cfg.package ];
+  };
+}