nixpkgs/pkgs/development/python-modules/bootstrapped-pip/default.nix
2020-11-05 16:09:24 +01:00

72 lines
2.3 KiB
Nix

{ stdenv, python, fetchPypi, makeWrapper, unzip, makeSetupHook
, pipInstallHook
, setuptoolsBuildHook
, wheel, pip, setuptools
, isPy27
}:
stdenv.mkDerivation rec {
pname = "pip";
inherit (pip) version;
name = "${python.libPrefix}-bootstrapped-${pname}-${version}";
srcs = [ wheel.src pip.src setuptools.src ];
sourceRoot = ".";
dontUseSetuptoolsBuild = true;
dontUsePipInstall = true;
# Should be propagatedNativeBuildInputs
propagatedBuildInputs = [
# Override to remove dependencies to prevent infinite recursion.
(pipInstallHook.override{pip=null;})
(setuptoolsBuildHook.override{setuptools=null; wheel=null;})
];
postPatch = ''
mkdir -p $out/bin
'' + stdenv.lib.optionalString isPy27 ''
pushd "${pip.src.name}"
patch -p1 < ${builtins.elemAt pip.patches 0}
popd
'';
nativeBuildInputs = [ makeWrapper unzip ];
buildInputs = [ python ];
buildPhase = ":";
installPhase = stdenv.lib.strings.optionalString (!stdenv.hostPlatform.isWindows) ''
export SETUPTOOLS_INSTALL_WINDOWS_SPECIFIC_FILES=0
'' + ''
# Give folders a known name
mv pip* pip
mv setuptools* setuptools
mv wheel* wheel
# Set up PYTHONPATH. The above folders need to be on PYTHONPATH
# $out is where we are installing to and takes precedence
export PYTHONPATH="$out/${python.sitePackages}:$(pwd)/pip/src:$(pwd)/setuptools:$(pwd)/setuptools/pkg_resources:$(pwd)/wheel"
echo "Building setuptools wheel..."
pushd setuptools
${python.pythonForBuild.interpreter} -m pip install --no-build-isolation --no-index --prefix=$out --ignore-installed --no-dependencies --no-cache --build tmpbuild .
popd
echo "Building wheel wheel..."
pushd wheel
${python.pythonForBuild.interpreter} -m pip install --no-build-isolation --no-index --prefix=$out --ignore-installed --no-dependencies --no-cache --build tmpbuild .
popd
echo "Building pip wheel..."
pushd pip
${python.pythonForBuild.interpreter} -m pip install --no-build-isolation --no-index --prefix=$out --ignore-installed --no-dependencies --no-cache --build tmpbuild .
popd
'';
meta = {
description = "Version of pip used for bootstrapping";
license = stdenv.lib.unique (pip.meta.license ++ setuptools.meta.license ++ wheel.meta.license);
homepage = pip.meta.homepage;
};
}