cppman: init at 0.5.9

pkgs/by-name/cp/cppman/package.nix

@@ -0,0 +1,70 @@
+{
+  lib,
+  python3Packages,
+  fetchFromGitHub,
+  groff,
+  nix-update-script,
+  versionCheckHook,
+  writableTmpDirAsHomeHook,
+}:
+python3Packages.buildPythonApplication rec {
+  pname = "cppman";
+  version = "0.5.9";
+  pyproject = true;
+
+  src = fetchFromGitHub {
+    owner = "aitjcize";
+    repo = "cppman";
+    tag = version;
+    hash = "sha256-iPJR4XAjNrBhFHZVOATPi3WwTC1/Y6HK3qmKLqbaK98=";
+  };
+
+  build-system = with python3Packages; [
+    setuptools
+    distutils
+  ];
+
+  dependencies = [
+    python3Packages.beautifulsoup4
+    python3Packages.html5lib
+    python3Packages.lxml
+    python3Packages.six
+    python3Packages.soupsieve
+    python3Packages.typing-extensions
+    python3Packages.webencodings
+    groff
+  ];
+
+  # cppman pins all dependency versions via requirements.txt as install_requires
+  pythonRelaxDeps = true;
+
+  # bs4 is merely a dummy package and can be safely removed
+  # Ideally, its version would also stay fixed.
+  postPatch = ''
+    substituteInPlace requirements.txt \
+      --replace-fail "bs4==0.0.2" ""
+  '';
+
+  pythonImportsCheck = [
+    "cppman"
+  ];
+
+  nativeCheckInputs = [
+    versionCheckHook
+    writableTmpDirAsHomeHook
+  ];
+  # Writable $HOME is required for `cppman --version` to work
+  versionCheckKeepEnvironment = "HOME";
+  versionCheckProgramArg = "--version";
+
+  passthru.updateScript = nix-update-script { };
+
+  meta = {
+    description = "Terminal viewer for C++ 98/11/14 manual pages";
+    homepage = "https://github.com/aitjcize/cppman";
+    changelog = "https://github.com/aitjcize/cppman/blob/${src.tag}/ChangeLog";
+    license = lib.licenses.gpl3Only;
+    maintainers = with lib.maintainers; [ ryan4yin ];
+    mainProgram = "cppman";
+  };
+}