Add isp-setup service

Author: sm1ll3r

modules/default.nix

@@ -43,6 +43,7 @@ in
     ./nvargus-daemon.nix
     ./flash-script.nix
     ./devices.nix
+    ./isp-setup.nix
     (lib.modules.mkRenamedOptionModule [ "hardware" "nvidia-jetpack" "container-toolkit" "enable" ] [ "hardware" "nvidia-container-toolkit" "enable" ])
   ];
 

modules/isp-setup.nix

@@ -0,0 +1,39 @@
+{ pkgs, config, lib, ... }:
+
+let
+  inherit (lib) types mkEnableOption mkOption;
+
+  cfg = config.services.isp-setup;
+
+  copyISPfiles = pkgs.writeShellScriptBin "copy-isp-files" ''
+    if [[ ! -f "/var/nvidia/nvcam" ]]; then
+      ${lib.getExe' pkgs.coreutils "mkdir"} -p /var/nvidia/nvcam
+      ${lib.getExe' pkgs.coreutils "cp"} -r ${cfg.path}/. /var/nvidia/nvcam
+      ${lib.getExe' pkgs.coreutils "chmod"} -R 644 /var/nvidia/nvcam
+    fi
+  '';
+in
+{
+  options = {
+    services.isp-setup = {
+      
+      enable = mkEnableOption "ISP setup";
+
+      path = mkOption {
+        description = "Path to nvcam files";
+        type = types.path;
+      };
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    systemd.services.isp-setup = {
+      enable = true;
+      description = "ISP setup";
+      serviceConfig = {
+        ExecStart = lib.getExe copyISPfiles;
+      };
+      wantedBy = [ "multi-user.target" ];
+    };
+  };
+}