nixpkgs/pkgs/development/interpreters/python/wrapper.nix
Frederik Rietdijk 1dbb72b91a python.buildenv: don't filter non-python packages
python.buildenv is used to build an env that provides binaries that can
import all modules that were passed in to the env.

Before this change it filtered the propagatedBuildInputs to remove all
non-Python packages, thereby possibly reducing the amount of packages
that were referenced. However, Python packages often don't have non-
Python packages as propagatedBuildInputs. And occasionally, we do want
to be able to add other packages to the env.
2016-09-17 14:28:12 +02:00

55 lines
1.4 KiB
Nix

{ stdenv, python, buildEnv, makeWrapper
, extraLibs ? []
, postBuild ? ""
, ignoreCollisions ? false }:
# Create a python executable that knows about additional packages.
let
recursivePthLoader = import ../../python-modules/recursive-pth-loader/default.nix { stdenv = stdenv; python = python; };
env = (
let
paths = stdenv.lib.closePropagation (extraLibs ++ [ python recursivePthLoader ] ) ;
in buildEnv {
name = "${python.name}-env";
inherit paths;
inherit ignoreCollisions;
postBuild = ''
. "${makeWrapper}/nix-support/setup-hook"
if [ -L "$out/bin" ]; then
unlink "$out/bin"
fi
mkdir -p "$out/bin"
for path in ${stdenv.lib.concatStringsSep " " paths}; do
if [ -d "$path/bin" ]; then
cd "$path/bin"
for prg in *; do
if [ -f "$prg" ]; then
rm -f "$out/bin/$prg"
makeWrapper "$path/bin/$prg" "$out/bin/$prg" --set PYTHONHOME "$out"
fi
done
fi
done
'' + postBuild;
passthru.env = stdenv.mkDerivation {
name = "interactive-${python.name}-environment";
nativeBuildInputs = [ env ];
buildCommand = ''
echo >&2 ""
echo >&2 "*** Python 'env' attributes are intended for interactive nix-shell sessions, not for building! ***"
echo >&2 ""
exit 1
'';
};
}) // {
inherit python;
inherit (python) meta;
};
in env