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Since wheel support was introduced in 2015 we always relied on pre-built wheels for bootstrapping. Now, we can bootstrap directly from the sources of these packages in git. The `bootstrapped-pip` packages is used to build `pip`, `setuptools` and `wheel`, after which those packages are used to build everything else. Note that when building `bootstrapped-pip` some errors are shown. These are not important, the build actually does succeed and work as intended.
67 lines
2.2 KiB
Nix
67 lines
2.2 KiB
Nix
{ stdenv, python, fetchPypi, makeWrapper, unzip, makeSetupHook
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, pipInstallHook
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, setuptoolsBuildHook
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, wheel, pip, setuptools
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}:
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stdenv.mkDerivation rec {
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pname = "pip";
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inherit (pip) version;
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name = "${python.libPrefix}-bootstrapped-${pname}-${version}";
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srcs = [ wheel.src pip.src setuptools.src ];
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sourceRoot = ".";
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dontUseSetuptoolsBuild = true;
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dontUsePipInstall = true;
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# Should be propagatedNativeBuildInputs
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propagatedBuildInputs = [
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# Override to remove dependencies to prevent infinite recursion.
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(pipInstallHook.override{pip=null;})
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(setuptoolsBuildHook.override{setuptools=null; wheel=null;})
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];
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postPatch = ''
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mkdir -p $out/bin
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'';
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nativeBuildInputs = [ makeWrapper unzip ];
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buildInputs = [ python ];
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buildPhase = ":";
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installPhase = stdenv.lib.strings.optionalString (!stdenv.hostPlatform.isWindows) ''
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export SETUPTOOLS_INSTALL_WINDOWS_SPECIFIC_FILES=0
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'' + ''
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# Give folders a known name
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mv pip* pip
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mv setuptools* setuptools
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mv wheel* wheel
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# Set up PYTHONPATH. The above folders need to be on PYTHONPATH
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# $out is where we are installing to and takes precedence
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export PYTHONPATH="$out/${python.sitePackages}:$(pwd)/pip/src:$(pwd)/setuptools:$(pwd)/setuptools/pkg_resources:$(pwd)/wheel"
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echo "Building setuptools wheel..."
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pushd setuptools
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${python.pythonForBuild.interpreter} -m pip install --no-build-isolation --no-index --prefix=$out --ignore-installed --no-dependencies --no-cache --build tmpbuild .
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popd
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echo "Building wheel wheel..."
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pushd wheel
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${python.pythonForBuild.interpreter} -m pip install --no-build-isolation --no-index --prefix=$out --ignore-installed --no-dependencies --no-cache --build tmpbuild .
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popd
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echo "Building pip wheel..."
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pushd pip
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${python.pythonForBuild.interpreter} -m pip install --no-build-isolation --no-index --prefix=$out --ignore-installed --no-dependencies --no-cache --build tmpbuild .
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popd
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'';
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meta = {
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description = "Version of pip used for bootstrapping";
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license = stdenv.lib.unique (pip.meta.license ++ setuptools.meta.license ++ wheel.meta.license);
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homepage = pip.meta.homepage;
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};
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}
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