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import sys
from glob import glob
from os import cpu_count, environ
from os.path import dirname, exists, join
import setuptools
from setuptools import Extension, setup
from setuptools.command.build_ext import build_ext
class get_pybind_include(object):
"""Helper class to determine the pybind11 include path
The purpose of this class is to postpone importing pybind11
until it is actually installed, so that the ``get_include()``
method can be invoked. """
def __str__(self):
# If we are vendoring use the vendored version
if exists('src/vendor/pybind11'):
return 'src/vendor/pybind11/include'
import pybind11
return pybind11.get_include()
extra_includes = []
extra_library_dirs = []
qpdf_source_tree = environ.get('QPDF_SOURCE_TREE', None)
if qpdf_source_tree:
# Point this to qpdf source tree built with shared libaries
extra_includes.append(join(qpdf_source_tree, 'include'))
extra_library_dirs.append(join(qpdf_source_tree, 'libqpdf/build/.libs'))
if 'bsd' in sys.platform:
extra_includes.append('/usr/local/include')
ext_modules = [
Extension(
'pikepdf._qpdf',
sorted(glob('src/qpdf/*.cpp')),
depends=sorted(glob('src/qpdf/*.h')),
include_dirs=[
# Path to pybind11 headers
get_pybind_include(),
*extra_includes,
],
library_dirs=[*extra_library_dirs],
libraries=['qpdf'],
language='c++',
)
]
# As of Python 3.6, CCompiler has a `has_flag` method.
# cf http://bugs.python.org/issue26689
def has_flag(compiler, flagname):
"""Return a boolean indicating whether a flag name is supported on
the specified compiler.
"""
import tempfile
import os
with tempfile.NamedTemporaryFile(
'w', prefix='has_flag__', suffix='.cpp', delete=False
) as f:
f.write('int main (int argc, char **argv) { return 0; }')
fname = f.name
try:
compiler.compile([fname], extra_postargs=[flagname])
except setuptools.distutils.errors.CompileError:
return False
finally:
try:
os.remove(fname)
except OSError:
pass
return True
def cpp_flag(compiler):
"""Return the -std=c++[XX] compiler flag.
Notes on c++17 and macOS:
https://github.com/pybind/python_example/issues/44
"""
if sys.platform == 'cygwin':
flags = ['-std=gnu++14'] # For strdup()
else:
flags = ['-std=c++14']
for flag in flags:
if has_flag(compiler, flag):
return flag
raise RuntimeError('Unsupported compiler -- at least C++14 support ' 'is needed!')
class BuildExt(build_ext):
"""A custom build extension for adding compiler-specific options."""
c_opts = {'msvc': ['/EHsc'], 'unix': []}
l_opts = {'msvc': [], 'unix': []}
if sys.platform == 'darwin':
darwin_opts = ['-stdlib=libc++', '-mmacosx-version-min=10.9']
c_opts['unix'] += darwin_opts
l_opts['unix'] += darwin_opts
def finalize_options(self):
super().finalize_options()
if not self.parallel:
try:
self.parallel = int(environ.get("MAX_CONCURRENCY", min(4, cpu_count())))
except TypeError:
self.parallel = None
def build_extensions(self):
ct = self.compiler.compiler_type
opts = self.c_opts.get(ct, [])
link_opts = self.l_opts.get(ct, [])
if ct == 'unix':
opts.append(cpp_flag(self.compiler))
if has_flag(self.compiler, '-fvisibility=hidden'):
opts.append('-fvisibility=hidden')
for ext in self.extensions:
ext.define_macros = [
('VERSION_INFO', '"{}"'.format(self.distribution.get_version()))
]
ext.extra_compile_args = opts
ext.extra_link_args = link_opts
build_ext.build_extensions(self)
setup_py_cwd = dirname(__file__)
with open(join(setup_py_cwd, 'requirements/docs.txt')) as f:
docs_require = [
line.strip() for line in f if line.strip() and not line.strip().startswith('#')
]
with open(join(setup_py_cwd, 'requirements/test.txt')) as f:
tests_require = [
line.strip() for line in f if line.strip() and not line.strip().startswith('#')
]
with open(join(setup_py_cwd, 'README.md'), encoding='utf-8') as f:
readme = f.read()
if __name__ == '__main__': # for mp_compile
if sys.version_info >= (3, 6):
try:
import mp_compile
mp_compile.install()
except ModuleNotFoundError:
pass
setup(
name='pikepdf',
author='James R. Barlow',
author_email='james@purplerock.ca',
url='https://github.com/pikepdf/pikepdf',
description='Read and write PDFs with Python, powered by qpdf',
long_description=readme,
long_description_content_type='text/markdown',
ext_modules=ext_modules,
install_requires=[
'lxml >= 4.0',
'Pillow >= 6', # only needed for manipulating images
],
extras_require={'docs': docs_require},
cmdclass={'build_ext': BuildExt},
zip_safe=False,
python_requires='>=3.5',
setup_requires=[
'setuptools_scm',
'setuptools_scm_git_archive',
],
use_scm_version=True,
tests_require=tests_require,
package_dir={'': 'src'},
packages=setuptools.find_packages('src'),
package_data={'': ['*.txt'], 'pikepdf': ['*.dll']},
classifiers=[
"Development Status :: 5 - Production/Stable",
"Intended Audience :: Developers",
"Intended Audience :: Information Technology",
"License :: OSI Approved :: Mozilla Public License 2.0 (MPL 2.0)",
"Programming Language :: Python :: 3.5",
"Programming Language :: Python :: 3.6",
"Programming Language :: Python :: 3.7",
"Programming Language :: Python :: 3.8",
"Programming Language :: Python :: 3.9",
"Programming Language :: Python :: 3 :: Only",
"Programming Language :: C++",
"Topic :: Multimedia :: Graphics",
"Topic :: Software Development :: Libraries",
],
project_urls={
'Documentation': 'https://pikepdf.readthedocs.io/',
'Source': 'https://github.com/pikepdf/pikepdf',
'Tracker': 'https://github.com/pikepdf/pikepdf/issues',
},
)
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