dput-ng: Install required configuration files

Signed-off-by: Anders Kaseorg <andersk@mit.edu>

pkgs/by-name/dp/dput-ng/package.nix

@@ -20,6 +20,10 @@ python3.pkgs.buildPythonApplication {
     hash = "sha256-zrH4h4C4y3oTiOXsidFv/rIJNzCdV2lqzNEg0SOkX4w=";
   };
 
+  postPatch = ''
+    substituteInPlace dput/core.py --replace-fail /usr/share/dput-ng "$out/share/dput-ng"
+  '';
+
   build-system = with python3.pkgs; [
     setuptools
   ];
@@ -36,6 +40,8 @@ python3.pkgs.buildPythonApplication {
 
   postInstall = ''
     cp -r bin $out/
+    mkdir -p "$out/share/dput-ng"
+    cp -r skel/* "$out/share/dput-ng/"
   '';
 
   pythonImportsCheck = [ "dput" ];