def build_extensions(pkg):
if not pkg.extensions:
return {}
# XXX: import here because numpy import time slows down everything
# otherwise. This is ugly, but using numpy.distutils is temporary
# anyway
try:
import numpy
use_numpy_distutils = True
except ImportError:
use_numpy_distutils = False
# FIXME: import done here to avoid clashing with monkey-patch as done by
# the convert subcommand.
if use_numpy_distutils:
from numpy.distutils.numpy_distribution \
import \
NumpyDistribution as Distribution
from numpy.distutils.command.build_ext \
import \
build_ext
from numpy.distutils.command.build_src \
import \
build_src
from numpy.distutils.command.scons \
import \
scons
from numpy.distutils import log
import distutils.core
else:
from distutils.dist \
import \
Distribution
from distutils.command.build_ext \
import \
build_ext
from distutils import log
import distutils.errors
log.set_verbosity(1)
dist = Distribution()
if use_numpy_distutils:
dist.cmdclass['build_src'] = build_src
dist.cmdclass['scons'] = scons
distutils.core._setup_distribution = dist
dist.ext_modules = [toyext_to_distext(e) for e in
pkg.extensions.values()]
try:
bld_cmd = build_ext(dist)
bld_cmd.initialize_options()
bld_cmd.finalize_options()
bld_cmd.run()
ret = {}
for ext in bld_cmd.extensions:
# FIXME: do package -> location translation correctly
pkg_dir = os.path.dirname(ext.name.replace('.', os.path.sep))
target = os.path.join('$sitedir', pkg_dir)
fullname = bld_cmd.get_ext_fullname(ext.name)
ext_target = os.path.join(bld_cmd.build_lib,
bld_cmd.get_ext_filename(fullname))
srcdir = os.path.dirname(ext_target)
section = InstalledSection("extensions", fullname, srcdir,
target, [os.path.basename(ext_target)])
ret[fullname] = section
return ret
except distutils.errors.DistutilsError, e:
raise CommandExecutionFailure(str(e))
