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setup.py
executable file
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setup.py
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#!/usr/bin/env python
# Copyright 2011-2013 Kwant authors.
#
# This file is part of Kwant. It is subject to the license terms in the
# LICENSE file found in the top-level directory of this distribution and at
# http://kwant-project.org/license. A list of Kwant authors can be found in
# the AUTHORS file at the top-level directory of this distribution and at
# http://kwant-project.org/authors.
from __future__ import print_function
import sys
import re
import os
import glob
import subprocess
import ConfigParser
from distutils.core import setup, Extension, Command
from distutils.util import get_platform
from distutils.errors import DistutilsError, DistutilsModuleError, \
CCompilerError
from distutils.command.build import build as distutils_build
from distutils.command.sdist import sdist as distutils_sdist
import numpy
CONFIG_FILE = 'build.conf'
README_FILE = 'README.rst'
README_END_BEFORE = 'See also in this directory:'
STATIC_VERSION_FILE = 'kwant/_static_version.py'
REQUIRED_CYTHON_VERSION = (0, 22)
NO_CYTHON_OPTION = '--no-cython'
NO_GIT_OPTION = '--no-git'
TUT_DIR = 'tutorial'
TUT_GLOB = 'doc/source/tutorial/*.py'
TUT_HIDDEN_PREFIX = '#HIDDEN'
try:
import Cython
except:
cython_version = ()
else:
match = re.match('([0-9.]*)(.*)', Cython.__version__)
cython_version = [int(n) for n in match.group(1).split('.')]
# Decrease version if the version string contains a suffix.
if match.group(2):
while cython_version[-1] == 0:
cython_version.pop()
cython_version[-1] -= 1
cython_version = tuple(cython_version)
try:
sys.argv.remove(NO_CYTHON_OPTION)
cythonize = False
except ValueError:
cythonize = True
try:
sys.argv.remove(NO_GIT_OPTION)
use_git = False
except ValueError:
use_git = True
if cythonize and cython_version:
from Cython.Distutils import build_ext
else:
from distutils.command.build_ext import build_ext
distr_root = os.path.dirname(os.path.abspath(__file__))
def header(title=''):
return title.center(79, '*')
error_msg = """{sep}
The compilation of Kwant has failed. Please examine the error message
above and consult the installation instructions in README.rst.
You might have to customize {{file}}.
{sep}
Build configuration was:
{{summary}}
{sep}"""
error_msg = error_msg.format(sep=header())
class kwant_build_ext(build_ext):
def run(self):
if not config_file_present:
# Create an empty config file if none is present so that the
# extensions will not be rebuilt each time. Only depending on the
# config file if it is present would make it impossible to detect a
# necessary rebuild due to a deleted config file.
with open(CONFIG_FILE, 'w') as f:
f.write('# Created by setup.py - feel free to modify.\n')
try:
build_ext.run(self)
except (DistutilsError, CCompilerError):
print(error_msg.format(file=CONFIG_FILE, summary=build_summary),
file=sys.stderr)
raise
print(header(' Build summary '))
print(build_summary)
class build_tut(Command):
description = "build the tutorial scripts"
user_options = []
def initialize_options(self):
pass
def finalize_options(self):
pass
def run(self):
if not os.path.exists(TUT_DIR):
os.mkdir(TUT_DIR)
for in_fname in glob.glob(TUT_GLOB):
out_fname = os.path.join(TUT_DIR, os.path.basename(in_fname))
with open(in_fname) as in_file:
with open(out_fname, 'w') as out_file:
for line in in_file:
if not line.startswith(TUT_HIDDEN_PREFIX):
out_file.write(line)
# Our version of the "build" command also makes sure the tutorial is made.
# Even though the tutorial is not necessary for installation, and "build" is
# supposed to make everything needed to install, this is a robust way to ensure
# that the tutorial is present.
class kwant_build(distutils_build):
sub_commands = [('build_tut', None)] + distutils_build.sub_commands
class test(Command):
description = "build, then run the unit tests"
user_options = []
def initialize_options(self):
pass
def finalize_options(self):
pass
def run(self):
try:
from nose.core import run
except ImportError:
raise DistutilsModuleError('nose <http://nose.readthedocs.org/> '
'is needed to run the tests')
self.run_command('build')
major, minor = sys.version_info[:2]
lib_dir = "build/lib.{0}-{1}.{2}".format(get_platform(), major, minor)
print(header(' Tests '))
if not run(argv=[__file__, '-v', lib_dir]):
raise DistutilsError('at least one of the tests failed')
def git_lsfiles():
if not use_git:
return
try:
p = subprocess.Popen(['git', 'ls-files'], cwd=distr_root,
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
except OSError:
return
if p.wait() != 0:
return
return p.communicate()[0].split('\n')[:-1]
# Make the command "sdist" depend on "build". This verifies that the
# distribution in the current state actually builds. It also makes sure that
# the Cython-made C files and the tutorial will be included in the source
# distribution and that they will be up-to-date.
class kwant_sdist(distutils_sdist):
sub_commands = [('build', None)] + distutils_sdist.sub_commands
def run(self):
names = git_lsfiles()
trustworthy = True
if names is None:
# Check that MANIFEST exists and has not been generated by
# distutils.
try:
with open(distr_root + '/MANIFEST', 'r') as f:
line = f.read()
except IOError:
print("error: MANIFEST file is missing and Git is not"
" available to regenerate it.", file=sys.stderr)
exit(1)
trustworthy = not line.strip().startswith('#')
else:
# Generate MANIFEST file.
with open(distr_root + '/MANIFEST', 'w') as f:
for name in names:
a, sep, b = name.rpartition('/')
if b == '.gitignore':
continue
stem, dot, extension = b.rpartition('.')
if extension == 'pyx':
f.write(''.join([a, sep, stem, dot, 'c', '\n']))
f.write(name + '\n')
f.write(STATIC_VERSION_FILE + '\n')
f.write('MANIFEST\n')
distutils_sdist.run(self)
msg = None
if names is None:
msg = ['Git was not available for re-generating '
'the MANIFEST file (the list of file',
'names to be included in the source'
' distribution). The old MANIFEST was used.']
if not trustworthy:
msg = ['-The existing MANIFEST file seems to'
' have been generated by distutils (it begins',
'-with a comment). It may well be incomplete.']
if msg is not None:
msg.insert(0, header(' Warning '))
print(msg, sep='\n', file=sys.stderr)
# This is an exact copy of the function from kwant/_common.py. We can't import
# it here (because Kwant is not yet built when this scipt is run), so we just
# include a copy.
def get_version_from_git():
if not use_git:
return
try:
p = subprocess.Popen(['git', 'rev-parse', '--show-toplevel'],
cwd=distr_root,
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
except OSError:
return
if p.wait() != 0:
return
# TODO: use os.path.samefile once we depend on Python >= 3.3.
if os.path.normpath(p.communicate()[0].rstrip('\n')) != distr_root:
# The top-level directory of the current Git repository is not the same
# as the root directory of the Kwant distribution: do not extract the
# version from Git.
return
# git describe --first-parent does not take into account tags from branches
# that were merged-in.
for opts in [['--first-parent'], []]:
try:
p = subprocess.Popen(['git', 'describe'] + opts, cwd=distr_root,
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
except OSError:
return
if p.wait() == 0:
break
else:
return
version = p.communicate()[0].rstrip('\n')
if version[0] == 'v':
version = version[1:]
try:
p = subprocess.Popen(['git', 'diff', '--quiet'], cwd=distr_root)
except OSError:
version += '-confused' # This should never happen.
else:
if p.wait() == 1:
version += '-dirty'
return version
def read_static_version():
"""Return the version as recorded inside the source code."""
try:
with open(STATIC_VERSION_FILE) as f:
contents = f.read()
assert contents[:11] == "version = '"
assert contents[-2:] == "'\n"
return contents[11:-2]
except:
return None
def write_static_version(version):
"""Record the version so that it is available without version control."""
with open(STATIC_VERSION_FILE, 'w') as f:
f.write("version = '%s'\n" % version)
def version():
"""Determine the version of Kwant. Return it and save it in a file."""
git_version = get_version_from_git()
static_version = read_static_version()
if git_version is not None:
version = git_version
if static_version != git_version:
write_static_version(version)
elif static_version is not None:
version = static_version
else:
version = 'unknown'
return version
def long_description():
text = []
try:
with open(README_FILE) as f:
for line in f:
if line.startswith(README_END_BEFORE):
break
text.append(line.rstrip())
while text[-1] == "":
text.pop()
except:
return ''
return '\n'.join(text)
def packages():
return [root.replace('/', '.')
for root, dnames, fnames in os.walk('kwant')
if '__init__.py' in fnames or root.endswith('/tests')]
def search_mumps():
"""Return the configuration for MUMPS if it is available in a known way.
This is known to work with the MUMPS provided by the Debian package
libmumps-scotch-dev."""
libs = ['zmumps_scotch', 'mumps_common_scotch', 'pord', 'mpiseq_scotch',
'gfortran']
cmd = ['gcc']
cmd.extend(['-l' + lib for lib in libs])
cmd.extend(['-o/dev/null', '-xc', '-'])
try:
p = subprocess.Popen(cmd, stdin=subprocess.PIPE, stderr=subprocess.PIPE)
except OSError:
pass
else:
p.communicate(input='int main() {}\n')
if p.wait() == 0:
return {'libraries': libs}
return {}
def extensions():
"""Return a list of tuples (args, kwrds) to be passed to
Extension. possibly after replacing ".pyx" with ".c" if Cython is not to be
used."""
global build_summary, config_file_present
build_summary = []
#### Add components of Kwant without external compile-time dependencies.
result = [
(['kwant._system', ['kwant/_system.pyx']],
{'include_dirs': ['kwant/graph']}),
(['kwant.graph.core', ['kwant/graph/core.pyx']],
{'depends': ['kwant/graph/core.pxd', 'kwant/graph/defs.h',
'kwant/graph/defs.pxd']}),
(['kwant.graph.utils', ['kwant/graph/utils.pyx']],
{'depends': ['kwant/graph/defs.h', 'kwant/graph/defs.pxd',
'kwant/graph/core.pxd']}),
(['kwant.graph.slicer', ['kwant/graph/slicer.pyx',
'kwant/graph/c_slicer/partitioner.cc',
'kwant/graph/c_slicer/slicer.cc']],
{'depends': ['kwant/graph/defs.h', 'kwant/graph/defs.pxd',
'kwant/graph/core.pxd',
'kwant/graph/c_slicer.pxd',
'kwant/graph/c_slicer/bucket_list.h',
'kwant/graph/c_slicer/graphwrap.h',
'kwant/graph/c_slicer/partitioner.h',
'kwant/graph/c_slicer/slicer.h']})]
#### Add components of Kwant with external compile-time dependencies.
config = ConfigParser.ConfigParser()
try:
with open(CONFIG_FILE) as f:
config.readfp(f)
except IOError:
config_file_present = False
else:
config_file_present = True
kwrds_by_section = {}
for section in config.sections():
kwrds_by_section[section] = kwrds = {}
for name, value in config.items(section):
kwrds[name] = value.split()
# Setup LAPACK.
lapack = kwrds_by_section.get('lapack')
if lapack:
build_summary.append('User-configured LAPACK and BLAS')
else:
lapack = {'libraries': ['lapack', 'blas']}
build_summary.append('Default LAPACK and BLAS')
kwrds = lapack.copy()
kwrds.setdefault('depends', []).extend(
[CONFIG_FILE, 'kwant/linalg/f_lapack.pxd'])
result.append((['kwant.linalg.lapack', ['kwant/linalg/lapack.pyx']],
kwrds))
# Setup MUMPS.
kwrds = kwrds_by_section.get('mumps')
if kwrds:
build_summary.append('User-configured MUMPS')
else:
kwrds = search_mumps()
if kwrds:
build_summary.append('Auto-configured MUMPS')
if kwrds:
for name, value in lapack.iteritems():
kwrds.setdefault(name, []).extend(value)
kwrds.setdefault('depends', []).extend(
[CONFIG_FILE, 'kwant/linalg/cmumps.pxd'])
result.append((['kwant.linalg._mumps', ['kwant/linalg/_mumps.pyx']],
kwrds))
else:
build_summary.append('No MUMPS support')
build_summary = '\n'.join(build_summary)
return result
def complain_cython_unavailable():
assert not cythonize or cython_version < REQUIRED_CYTHON_VERSION
if cythonize:
msg = "Install Cython {0} or newer so it can be made or use a source " \
"distribution of Kwant."
ver = '.'.join(str(e) for e in REQUIRED_CYTHON_VERSION)
print(msg.format(ver), file=sys.stderr)
else:
print("Run setup.py without", NO_CYTHON_OPTION, file=sys.stderr)
def ext_modules(extensions):
"""Prepare the ext_modules argument for distutils' setup."""
result = []
for args, kwrds in extensions:
if not cythonize or cython_version < REQUIRED_CYTHON_VERSION:
if 'language' in kwrds:
if kwrds['language'] == 'c':
ext = '.c'
elif kwrds['language'] == 'c++':
ext = '.cpp'
else:
print('Unknown language', file=sys.stderr)
exit(1)
else:
ext = '.c'
pyx_files = []
cythonized_files = []
sources = []
for f in args[1]:
if f[-4:] == '.pyx':
pyx_files.append(f)
f = f[:-4] + ext
cythonized_files.append(f)
sources.append(f)
args[1] = sources
try:
cythonized_oldest = min(os.stat(f).st_mtime
for f in cythonized_files)
except OSError:
print("error: Cython-generated file {} is missing.".format(f),
file=sys.stderr)
complain_cython_unavailable()
exit(1)
for f in pyx_files + kwrds.get('depends', []):
if f == CONFIG_FILE:
# The config file is only a dependency for the compilation
# of the cythonized file, not for the cythonization.
continue
if os.stat(f).st_mtime > cythonized_oldest:
msg = "error: {} is newer than its source file, but "
if cythonize and not cython_version:
msg += "Cython is not installed."
elif cythonize:
msg += "the installed Cython is too old."
else:
msg += "Cython is not to be run."
print(msg.format(f), file=sys.stderr)
complain_cython_unavailable()
exit(1)
result.append(Extension(*args, **kwrds))
return result
def main():
setup(name='kwant',
version=version(),
author='C. W. Groth (CEA), M. Wimmer, '
'A. R. Akhmerov, X. Waintal (CEA), and others',
author_email='authors@kwant-project.org',
description="Package for numerical quantum transport calculations.",
long_description=long_description(),
platforms=["Unix", "Linux", "Mac OS-X", "Windows"],
url="http://kwant-project.org/",
license="BSD",
packages=packages(),
cmdclass={'build': kwant_build,
'sdist': kwant_sdist,
'build_ext': kwant_build_ext,
'build_tut': build_tut,
'test': test},
ext_modules=ext_modules(extensions()),
include_dirs=[numpy.get_include()])
if __name__ == '__main__':
main()