92da3fd865
This reverts commit a9873e9412d5ffb333baaf33502c8dff62548fa6. svn path=/nixpkgs/branches/stdenv-updates/; revision=32651
117 lines
4 KiB
Nix
117 lines
4 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, site, offlineDistutils }:
|
|
|
|
{ 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 ? []
|
|
|
|
# distutils registers dependencies in .pth (good) but also creates
|
|
# console_scripts for dependencies in bin/ (bad). easy_install
|
|
# creates no scripts for dependencies (good) but does not register
|
|
# them in pth neither (bad) - the combination gives us a pth with
|
|
# dependencies and scripts only for the package we are currently
|
|
# installing.
|
|
, installCommand ?
|
|
''
|
|
# install the current package with easy_install.pth including dependencies
|
|
python setup.py install --prefix="$out"
|
|
|
|
# plain distutils knows no dependencies
|
|
eapth="$out"/lib/${python.libPrefix}/site-packages/easy-install.pth
|
|
if [ -e "$eapth" ]; then
|
|
# remove console_scripts again, because they were created for deps, too
|
|
rm -Rf "$out"/bin
|
|
|
|
# run easy_install to generate scripts for the current package,
|
|
# it won't reinstall
|
|
easy_install --prefix="$out" .
|
|
|
|
# move colliding easy_install.pth to specifically named one
|
|
mv "$eapth" $(dirname "$eapth")/${name}.pth
|
|
fi
|
|
|
|
# These cause collisions and our output is not a site anyway
|
|
# If you need a site, install python-site
|
|
rm -f "$out/lib/${python.libPrefix}/site-packages/"site.py*
|
|
|
|
# If setuptools is a dependency, it is included in $(name}.pth
|
|
rm -f "$out/lib/${python.libPrefix}/site-packages/setuptools.pth"
|
|
''
|
|
|
|
, buildPhase ? "true"
|
|
|
|
, doCheck ? true
|
|
|
|
, checkPhase ?
|
|
''
|
|
runHook preCheck
|
|
python setup.py test
|
|
runHook postCheck
|
|
''
|
|
|
|
, postInstall ? ""
|
|
|
|
, ... } @ attrs:
|
|
|
|
# Keep extra attributes from ATTR, e.g., `patchPhase', etc.
|
|
python.stdenv.mkDerivation (attrs // {
|
|
inherit doCheck buildPhase checkPhase;
|
|
|
|
name = namePrefix + name;
|
|
|
|
buildInputs = [ python wrapPython setuptools ] ++ buildInputs ++ pythonPath;
|
|
|
|
configurePhase = ''
|
|
# do not allow distutils to make downloads, whatever install command is used
|
|
export PYTHONPATH="${setuptools}/lib/${python.libPrefix}:$PYTHONPATH"
|
|
export PYTHONPATH="${offlineDistutils}/lib/${python.libPrefix}:$PYTHONPATH"
|
|
|
|
# enable pth files for dependencies
|
|
export PYTHONPATH="${site}/lib/${python.libPrefix}/site-packages:$PYTHONPATH"
|
|
'';
|
|
|
|
# XXX: I think setuptools is not needed here
|
|
pythonPath = [ setuptools site ] ++ 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).
|
|
#
|
|
# XXX: this is not needed for things to work (pth pulls in deps)
|
|
# but would be nice to have anyway - However, python deps end up
|
|
# in propagated-build-native-inputs
|
|
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
|
|
'';
|
|
})
|