libdnf: enable python bindings

pkgs/tools/package-management/libdnf/default.nix

@@ -16,12 +16,18 @@
 , rpm
 , zchunk
 , cppunit
+, python
+, swig
+, glib
+, sphinx
 }:
 
 stdenv.mkDerivation rec {
   pname = "libdnf";
   version = "0.72.0";
 
+  outputs = [ "out" "dev" "py" ];
+
   src = fetchFromGitHub {
     owner = "rpm-software-management";
     repo = pname;
@@ -44,6 +50,9 @@ stdenv.mkDerivation rec {
     libyaml
     libmodulemd
     zchunk
+    python
+    swig
+    sphinx
   ];
 
   propagatedBuildInputs = [
@@ -58,18 +67,32 @@ stdenv.mkDerivation rec {
     cp ${libsolv}/share/cmake/Modules/FindLibSolv.cmake cmake/modules/
   '';
 
+  patches = [
+    ./fix-python-install-dir.patch
+  ];
+
   postPatch = ''
     # https://github.com/rpm-software-management/libdnf/issues/1518
     substituteInPlace libdnf/libdnf.pc.in \
       --replace '$'{prefix}/@CMAKE_INSTALL_LIBDIR@ @CMAKE_INSTALL_FULL_LIBDIR@
+    substituteInPlace cmake/modules/FindPythonInstDir.cmake \
+      --replace "@PYTHON_INSTALL_DIR@" "$out/${python.sitePackages}"
   '';
 
   cmakeFlags = [
     "-DWITH_GTKDOC=OFF"
     "-DWITH_HTML=OFF"
-    "-DWITH_BINDINGS=OFF"
+    "-DPYTHON_DESIRED=${lib.head (lib.splitString ["."] python.version)}"
   ];
 
+  postInstall = ''
+    rm -r $out/${python.sitePackages}/hawkey/test
+  '';
+
+  postFixup = ''
+    moveToOutput "lib/${python.libPrefix}" "$py"
+  '';
+
   meta = with lib; {
     description = "Package management library";
     homepage = "https://github.com/rpm-software-management/libdnf";

pkgs/tools/package-management/libdnf/fix-python-install-dir.patch

@@ -0,0 +1,12 @@
+diff --git a/cmake/modules/FindPythonInstDir.cmake b/cmake/modules/FindPythonInstDir.cmake
+index ed098ded..2a2e1543 100644
+--- a/cmake/modules/FindPythonInstDir.cmake
++++ b/cmake/modules/FindPythonInstDir.cmake
+@@ -1,6 +1 @@
+-EXECUTE_PROCESS(COMMAND ${PYTHON_EXECUTABLE} -c "
+-from sys import stdout
+-from sysconfig import get_path
+-path=get_path(name='platlib', vars={'platbase':'${CMAKE_INSTALL_PREFIX}'})
+-stdout.write(path)"
+-OUTPUT_VARIABLE PYTHON_INSTALL_DIR)
++SET(PYTHON_INSTALL_DIR "@PYTHON_INSTALL_DIR@")

pkgs/top-level/all-packages.nix

@@ -22658,7 +22658,7 @@ with pkgs;
 
   libdnet = callPackage ../development/libraries/libdnet { };
 
-  libdnf = callPackage ../tools/package-management/libdnf { };
+  libdnf = callPackage ../tools/package-management/libdnf { python = python3; };
 
   libdovi = callPackage ../development/libraries/libdovi { };
 

pkgs/top-level/python-packages.nix

@@ -6139,6 +6139,13 @@ self: super: with self; {
 
   libcst = callPackage ../development/python-modules/libcst { };
 
+  libdnf = lib.pipe pkgs.libdnf [
+    toPythonModule
+    (p: p.overrideAttrs (super: { meta = super.meta // { outputsToInstall = [ "py" ]; }; }))
+    (p: p.override { inherit python; })
+    (p: p.py)
+  ];
+
   libevdev = callPackage ../development/python-modules/libevdev { };
 
   libfdt = toPythonModule (pkgs.dtc.override {