mkosi: init at 15.2-pre

Co-authored-by: Malte Poll <mp@edgeless.systems>
Co-authored-by: Jonas Heinrich <onny@project-insanity.org>
Signed-off-by: Paul Meyer <49727155+katexochen@users.noreply.github.com>

pkgs/tools/virtualization/mkosi/default.nix

@@ -0,0 +1,69 @@
+{ lib
+, fetchFromGitHub
+, setuptools
+, buildPythonApplication
+, pytestCheckHook
+, bubblewrap
+, systemd
+, stdenv
+}:
+let
+  # For systemd features used by mkosi, see
+  # https://github.com/systemd/mkosi/blob/19bb5e274d9a9c23891905c4bcbb8f68955a701d/action.yaml#L64-L72
+  systemdForMkosi = systemd.override {
+    # Will be added in #243242
+    # withRepart = true;
+    # withBootloader = true;
+    withEfi = true;
+    withUkify = true;
+  };
+in
+buildPythonApplication rec {
+  pname = "mkosi";
+  version = "15.2-pre"; # 15.1 is the latest release, but we require a newer commit
+  format = "pyproject";
+
+  src = fetchFromGitHub {
+    owner = "systemd";
+    repo = "mkosi";
+    # Fix from the commit is needed to run on NixOS,
+    # see https://github.com/systemd/mkosi/issues/1792
+    rev = "ca9673cbcbd9f293e5566cec4a1ba14bbcd075b8";
+    hash = "sha256-y5gG/g33HBpH1pTXfjHae25bc5p/BvlCm9QxOIYtcA8=";
+  };
+
+  # Fix ctypes finding library
+  # https://github.com/NixOS/nixpkgs/issues/7307
+  patchPhase = lib.optionalString stdenv.isLinux ''
+    substituteInPlace mkosi/run.py --replace \
+      'ctypes.util.find_library("c")' "'${stdenv.cc.libc}/lib/libc.so.6'"
+  '';
+
+  nativeBuildInputs = [
+    setuptools
+  ];
+
+
+  propagatedBuildInputs = [
+    systemdForMkosi
+    bubblewrap
+  ];
+
+  postInstall = ''
+    wrapProgram $out/bin/mkosi \
+      --prefix PYTHONPATH : "$PYTHONPATH"
+  '';
+
+  checkInputs = [
+    pytestCheckHook
+  ];
+
+  meta = with lib; {
+    description = "Build legacy-free OS images";
+    homepage = "https://github.com/systemd/mkosi";
+    license = licenses.lgpl21Only;
+    mainProgram = "mkosi";
+    maintainers = with maintainers; [ malt3 katexochen ];
+    platforms = platforms.linux;
+  };
+}

pkgs/top-level/all-packages.nix

@@ -1846,6 +1846,8 @@ with pkgs;
 
   mgmt = callPackage ../applications/system/mgmt { };
 
+  mkosi = python3Packages.callPackage ../tools/virtualization/mkosi { inherit systemd; };
+
   monica = callPackage ../servers/web-apps/monica { };
 
   mprocs = callPackage ../tools/misc/mprocs { };