mirror of
https://github.com/ilyakooo0/nixpkgs.git
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83 lines
2.3 KiB
Nix
83 lines
2.3 KiB
Nix
/* This function provides a generic Python package builder. It is
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intended to work with packages that use `setuptools'
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(http://pypi.python.org/pypi/setuptools/), which represents a large
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number of Python packages nowadays. */
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{ python, setuptools, wrapPython, lib, offlineDistutils }:
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{ name, namePrefix ? "python-"
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, buildInputs ? []
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, # List of packages that should be added to the PYTHONPATH
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# environment variable in programs built by this function. Packages
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# in the standard `propagatedBuildInputs' variable are also added.
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# The difference is that `pythonPath' is not propagated to the user
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# environment. This is preferrable for programs because it doesn't
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# pollute the user environment.
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pythonPath ? []
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, installCommand ?
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''
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easy_install --prefix="$out" .
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''
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, buildPhase ? "true"
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, doCheck ? true
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, checkPhase ?
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''
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runHook preCheck
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python setup.py test
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runHook postCheck
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''
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, configurePhase ? "true"
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, postInstall ? ""
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, ... } @ attrs:
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# Keep extra attributes from ATTR, e.g., `patchPhase', etc.
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python.stdenv.mkDerivation (attrs // {
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inherit doCheck buildPhase checkPhase;
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name = namePrefix + name;
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buildInputs = [ python wrapPython setuptools ] ++ buildInputs ++ pythonPath;
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buildInputStrings = map toString buildInputs;
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configurePhase = ''
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export PYTHONPATH="${offlineDistutils}/lib/${python.libPrefix}:$PYTHONPATH"
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${configurePhase}
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'';
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pythonPath = [ setuptools] ++ pythonPath;
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# XXX: Should we run `easy_install --always-unzip'? It doesn't seem
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# to have a noticeable impact on small scripts.
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installPhase = ''
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mkdir -p "$out/lib/${python.libPrefix}/site-packages"
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echo "installing \`${name}' with \`easy_install'..."
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export PYTHONPATH="$out/lib/${python.libPrefix}/site-packages:$PYTHONPATH"
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${installCommand}
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${postInstall}
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'';
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postFixup =
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''
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wrapPythonPrograms
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# If a user installs a Python package, she probably also wants its
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# dependencies in the user environment (since Python modules don't
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# have something like an RPATH, so the only way to find the
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# dependencies is to have them in the PYTHONPATH variable).
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if test -e $out/nix-support/propagated-build-inputs; then
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ln -s $out/nix-support/propagated-build-inputs $out/nix-support/propagated-user-env-packages
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fi
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'';
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})
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