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