init flake

pkgs/python/amaranth.nix

@@ -0,0 +1,59 @@
+{
+  lib,
+  buildPythonPackage,
+  pythonOlder,
+  fetchFromGitHub,
+  pdm-backend,
+  pyvcd,
+  jinja2,
+  importlib-resources,
+  importlib-metadata,
+  git,
+  # for tests
+  pytestCheckHook,
+  symbiyosys,
+  yices,
+  yosys,
+}:
+buildPythonPackage rec {
+  pname = "amaranth-041";
+  format = "pyproject";
+  version = "0.4.1";
+  disabled = pythonOlder "3.8";
+
+  src = fetchFromGitHub {
+    owner = "amaranth-lang";
+    repo = "amaranth";
+    rev = "refs/tags/v${version}";
+    hash = "sha256-VMgycvxkphdpWIib7aZwh588En145RgYlG2Zfi6nnDo=";
+  };
+
+  nativeBuildInputs = [
+    git
+    pdm-backend
+  ];
+
+  propagatedBuildInputs =
+    [
+      jinja2
+      pyvcd
+    ]
+    ++ lib.optional (pythonOlder "3.9") importlib-resources
+    ++ lib.optional (pythonOlder "3.8") importlib-metadata;
+
+  nativeCheckInputs = [
+    pytestCheckHook
+    symbiyosys
+    yices
+    yosys
+  ];
+
+  pythonImportsCheck = ["amaranth"];
+
+  meta = with lib; {
+    description = "A modern hardware definition language and toolchain based on Python";
+    homepage = "https://amaranth-lang.org/docs/amaranth";
+    license = licenses.bsd2;
+    maintainers = with maintainers; [emily thoughtpolice pbsds];
+  };
+}