cura: support plugins, add octoprint-plugin

pkgs/applications/misc/cura/default.nix

@@ -1,4 +1,4 @@
-{ mkDerivation, lib, fetchFromGitHub, cmake, python3, qtbase, qtquickcontrols2, qtgraphicaleffects, curaengine }:
+{ mkDerivation, lib, fetchFromGitHub, cmake, python3, qtbase, qtquickcontrols2, qtgraphicaleffects, curaengine, plugins ? [] }:
 
 mkDerivation rec {
   name = "cura-${version}";
@@ -21,7 +21,7 @@ mkDerivation rec {
   buildInputs = [ qtbase qtquickcontrols2 qtgraphicaleffects ];
   propagatedBuildInputs = with python3.pkgs; [
     libsavitar numpy-stl pyserial requests uranium zeroconf
-  ];
+  ] ++ plugins;
   nativeBuildInputs = [ cmake python3.pkgs.wrapPython ];
 
   cmakeFlags = [
@@ -37,6 +37,10 @@ mkDerivation rec {
   postInstall = ''
     mkdir -p $out/share/cura/resources/materials
     cp ${materials}/*.fdm_material $out/share/cura/resources/materials/
+    mkdir -p $out/lib/cura/plugins
+    for plugin in ${toString plugins}; do
+      ln -s $plugin/lib/cura/plugins/* $out/lib/cura/plugins
+    done
   '';
 
   postFixup = ''

pkgs/applications/misc/cura/plugins.nix

@@ -0,0 +1,34 @@
+{ stdenv, fetchFromGitHub, cmake, python3Packages }:
+
+let
+
+  self = {
+
+    octoprint = stdenv.mkDerivation rec {
+      pname = "Cura-OctoPrintPlugin";
+      version = "3.5.5";
+
+      src = fetchFromGitHub {
+        owner = "fieldOfView";
+        repo = pname;
+        rev = "d05a9a4c1a01c584d5cec4f4b7d170077235467a";
+        sha256 = "0ik69g3kbn7rz2wh0cfq9ww8x222kagd8jvsd4xlqgq4yrf0jk7x";
+      };
+
+      nativeBuildInputs = [ cmake ];
+
+      propagatedBuildInputs = with python3Packages; [
+        netifaces
+      ];
+
+      meta = with stdenv.lib; {
+        description = "Enables printing directly to OctoPrint and monitoring the process";
+        homepage = "https://github.com/fieldOfView/Cura-OctoPrintPlugin";
+        license = licenses.agpl3;
+        maintainers = with maintainers; [ gebner ];
+      };
+    };
+
+  };
+
+in self

pkgs/top-level/all-packages.nix

@@ -20151,6 +20151,8 @@ in
   };
   cura = qt5.callPackage ../applications/misc/cura { };
 
+  curaPlugins = callPackage ../applications/misc/cura/plugins.nix { };
+
   curaLulzbot = callPackage ../applications/misc/cura/lulzbot.nix { };
 
   curaByDagoma = callPackage ../applications/misc/curabydagoma { };