nixpkgs/pkgs/development/interpreters/python/wrapper.nix
2017-08-09 15:07:03 +02:00

59 lines
1.6 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"
if [ -x "$prg" ]; then
makeWrapper "$path/bin/$prg" "$out/bin/$prg" --set PYTHONHOME "$out" --set PYTHONNOUSERSITE "true"
fi
fi
done
fi
done
'' + postBuild;
inherit (python) meta;
passthru = python.passthru // {
interpreter = "${env}/bin/${python.executable}";
inherit python;
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
'';
};
};
};
in env