{ buildPythonPackage, hatchling, lib, ruff, }: buildPythonPackage { inherit (ruff) pname version src meta ; pyproject = true; build-system = [ hatchling ]; postPatch = # Do not rely on path lookup at runtime to find the ruff binary. # Use the propagated binary instead. '' substituteInPlace python/ruff/__main__.py \ --replace-fail \ 'ruff_exe = "ruff" + sysconfig.get_config_var("EXE")' \ 'return "${lib.getExe ruff}"' '' # Sidestep the maturin build system in favour of reusing the binary already built by nixpkgs, # to avoid rebuilding the ruff binary for every active python package set. + '' substituteInPlace pyproject.toml \ --replace-fail 'requires = ["maturin>=1.9,<2.0"]' 'requires = ["hatchling"]' \ --replace-fail 'build-backend = "maturin"' 'build-backend = "hatchling.build"' cat >> pyproject.toml <