70 lines
2 KiB
Nix
70 lines
2 KiB
Nix
{ lib
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, stdenv
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, python
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, build
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, flit-core
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, installer
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, packaging
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, pyproject-hooks
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, tomli
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, makeWrapper
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}:
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let
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buildBootstrapPythonModule = basePackage: attrs: stdenv.mkDerivation ({
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pname = "${python.libPrefix}-bootstrap-${basePackage.pname}";
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inherit (basePackage) version src meta;
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nativeBuildInputs = [ makeWrapper ];
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buildPhase = ''
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runHook preBuild
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PYTHONPATH="${flit-core}/${python.sitePackages}" \
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${python.interpreter} -m flit_core.wheel
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runHook postBuild
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'';
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installPhase = ''
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runHook preInstall
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PYTHONPATH="${installer}/${python.sitePackages}" \
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${python.interpreter} -m installer \
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--destdir "$out" --prefix "" dist/*.whl
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runHook postInstall
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'';
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} // attrs);
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bootstrap-packaging = buildBootstrapPythonModule packaging {};
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bootstrap-pyproject-hooks = buildBootstrapPythonModule pyproject-hooks {};
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bootstrap-tomli = buildBootstrapPythonModule tomli {};
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sitePkgs = python.sitePackages;
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in
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buildBootstrapPythonModule build {
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# like the installPhase above, but wrapping the pyproject-build command
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# to set up PYTHONPATH with the correct dependencies.
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# This allows using `pyproject-build` without propagating its dependencies
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# into the build environment, which is necessary to prevent
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# pythonCatchConflicts from raising false positive alerts.
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# This would happen whenever the package to build has a dependency on
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# another version of a package that is also a dependency of pyproject-build.
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installPhase = ''
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runHook preInstall
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PYTHONPATH="${installer}/${python.sitePackages}" \
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${python.interpreter} -m installer \
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--destdir "$out" --prefix "" dist/*.whl
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wrapProgram $out/bin/pyproject-build \
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--prefix PYTHONPATH : "$out/${sitePkgs}" \
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--prefix PYTHONPATH : "${bootstrap-pyproject-hooks}/${sitePkgs}" \
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--prefix PYTHONPATH : "${bootstrap-packaging}/${sitePkgs}" \
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--prefix PYTHONPATH : "${bootstrap-tomli}/${sitePkgs}"
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runHook postInstall
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'';
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}
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