python3.pkgs.ninja-python: replace with a stub implementation

pkgs/development/python-modules/meson-python/default.nix

@@ -43,13 +43,6 @@ buildPythonPackage rec {
     ./add-build-flags.sh
   ];
 
-  # Ugly work-around. Drop ninja dependency.
-  # We already have ninja, but it comes without METADATA.
-  # Building ninja-python-distributions is the way to go.
-  postPatch = ''
-    substituteInPlace pyproject.toml --replace "'ninja'," ""
-  '';
-
   meta = {
     changelog = "https://github.com/mesonbuild/meson-python/blob/${version}/CHANGELOG.rst";
     description = "Meson Python build backend (PEP 517)";

pkgs/development/python-modules/ninja/default.nix

@@ -1,72 +1,47 @@
 { lib
 , buildPythonPackage
-, fetchFromGitHub
-, fetchurl
-, cmake
-, setuptools-scm
-, scikit-build
-, pytestCheckHook
-, pytest-virtualenv
+, flit-core
+, ninja
 }:
-let
-  # these must match NinjaUrls.cmake
-  ninja_src_url = "https://github.com/Kitware/ninja/archive/v1.11.1.g95dee.kitware.jobserver-1.tar.gz";
-  ninja_src_sha256 = "7ba84551f5b315b4270dc7c51adef5dff83a2154a3665a6c9744245c122dd0db";
-  ninja_src = fetchurl {
-    url = ninja_src_url;
-    sha256 = ninja_src_sha256;
-  };
-in
+
 buildPythonPackage rec {
   pname = "ninja";
-  version = "1.11.1";
+  inherit (ninja) version;
   format = "pyproject";
 
-  src = fetchFromGitHub {
-    owner = "scikit-build";
-    repo = "ninja-python-distributions";
-    rev = version;
-    hash = "sha256-scCYsSEyN+u3qZhNhWYqHpJCl+JVJJbKz+T34gOXGJM=";
-  };
-  patches = [
-    # make sure cmake doesn't try to download the ninja sources
-    ./no-download.patch
-  ];
+  src = ./stub;
 
-  inherit ninja_src;
   postUnpack = ''
-    # assume that if the hash matches, the source should be fine
-    if ! grep "${ninja_src_sha256}" $sourceRoot/NinjaUrls.cmake; then
-      echo "ninja_src_sha256 doesn't match the hash in NinjaUrls.cmake!"
-      exit 1
-    fi
-    mkdir -p "$sourceRoot/Ninja-src"
-    pushd "$sourceRoot/Ninja-src"
-    tar -xavf ${ninja_src} --strip-components 1
-    popd
-  '';
+    substituteInPlace "$sourceRoot/pyproject.toml" \
+      --subst-var version
 
-  postPatch = ''
-    sed -i '/cov/d' setup.cfg
+    substituteInPlace "$sourceRoot/ninja/__init__.py" \
+      --subst-var-by BIN_DIR "${ninja}/bin"
   '';
 
-  dontUseCmakeConfigure = true;
+  inherit (ninja) setupHook;
 
   nativeBuildInputs = [
-    setuptools-scm
-    scikit-build
-    cmake
+    flit-core
   ];
 
-  nativeCheckInputs = [
-    pytestCheckHook
-    pytest-virtualenv
+  preBuild = ''
+    cp "${ninja.src}/misc/ninja_syntax.py" ninja/ninja_syntax.py
+  '';
+
+  pythonImportsCheck = [
+    "ninja"
+    "ninja.ninja_syntax"
   ];
 
   meta = with lib; {
     description = "A small build system with a focus on speed";
+    longDescription = ''
+      This is a stub of the ninja package on PyPI that uses the ninja program
+      provided by nixpkgs instead of downloading ninja from the web.
+    '';
     homepage = "https://github.com/scikit-build/ninja-python-distributions";
     license = licenses.asl20;
-    maintainers = with maintainers; [ _999eagle ];
+    maintainers = with maintainers; [ _999eagle tjni ];
   };
 }

pkgs/development/python-modules/ninja/stub/ninja/__init__.py

@@ -0,0 +1,9 @@
+import os
+import subprocess
+import sys
+
+def _program(name, args):
+    return subprocess.call([os.path.join('@BIN_DIR@', name)] + args, close_fds=False)
+
+def ninja():
+    raise SystemExit(_program('ninja', sys.argv[1:]))

pkgs/development/python-modules/ninja/stub/pyproject.toml

@@ -0,0 +1,11 @@
+[build-system]
+requires = ["flit_core"]
+build-backend = "flit_core.buildapi"
+
+[project]
+name = "ninja"
+version = "@version@"
+description = "Ninja is a small build system with a focus on speed"
+
+[project.scripts]
+ninja = "ninja:ninja"

pkgs/tools/misc/nanoemoji/default.nix

@@ -36,7 +36,7 @@ python3.pkgs.buildPythonApplication rec {
     absl-py
     fonttools
     lxml
-    ninja-python
+    ninja
     picosvg
     pillow
     regex
@@ -50,7 +50,7 @@ python3.pkgs.buildPythonApplication rec {
   nativeCheckInputs = with python3.pkgs; [
     pytestCheckHook
 
-    ninja-python
+    ninja
     picosvg
   ];
 

pkgs/top-level/python-aliases.nix

@@ -209,6 +209,7 @@ mapAliases ({
   mutmut = throw "mutmut has been promoted to a top-level attribute"; # added 2022-10-02
   net2grid = gridnet; # add 2022-04-22
   nghttp2 = throw "in 1.52.0 removed deprecated python bindings."; # added 2023-06-08
+  ninja-python = ninja; # add 2022-08-03
   nose-cover3 = throw "nose-cover3 has been removed, it was using setuptools 2to3 translation feature, which has been removed in setuptools 58"; # added 2022-02-16
   nose_progressive = throw "nose_progressive has been removed, it was using setuptools 2to3 translation feature, which has been removed in setuptools 58"; #added 2023-02-21
   notifymuch = throw "notifymuch has been promoted to a top-level attribute"; # added 2022-10-02

pkgs/top-level/python-packages.nix

@@ -6442,7 +6442,9 @@ self: super: with self; {
 
   mesonpep517 = callPackage ../development/python-modules/mesonpep517 { };
 
-  meson-python = callPackage ../development/python-modules/meson-python { };
+  meson-python = callPackage ../development/python-modules/meson-python {
+    inherit (pkgs) ninja;
+  };
 
   messagebird = callPackage ../development/python-modules/messagebird { };
 
@@ -7036,7 +7038,7 @@ self: super: with self; {
 
   nine = callPackage ../development/python-modules/nine { };
 
-  ninja-python = callPackage ../development/python-modules/ninja { };
+  ninja = callPackage ../development/python-modules/ninja { inherit (pkgs) ninja; };
 
   nipy = callPackage ../development/python-modules/nipy { };