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from distutils.command.build_py import build_py as _build_py
from distutils.util import convert_path
from glob import glob
import os.path
class build_py(_build_py):
"""Enhanced 'build_py' command that includes data files with packages
The data files are specified via a 'package_data' argument to 'setup()'.
See 'setuptools.dist.Distribution' for more details.
Also, this version of the 'build_py' command allows you to specify both
'py_modules' and 'packages' in the same setup operation.
"""
def finalize_options(self):
_build_py.finalize_options(self)
self.package_data = self.distribution.package_data
self.data_files = self.get_data_files()
def run(self):
"""Build modules, packages, and copy data files to build directory"""
if not self.py_modules and not self.packages:
return
if self.py_modules:
self.build_modules()
if self.packages:
self.build_packages()
self.build_package_data()
# Only compile actual .py files, using our base class' idea of what our
# output files are.
self.byte_compile(_build_py.get_outputs(self,include_bytecode=0))
def get_data_files(self):
"""Generate list of '(package,src_dir,build_dir,filenames)' tuples"""
data = []
for package in self.packages:
# Locate package source directory
src_dir = self.get_package_dir(package)
# Compute package build directory
build_dir = os.path.join(*([self.build_lib]+package.split('.')))
# Length of path to strip from found files
plen = len(src_dir)+1
# Strip directory from globbed filenames
filenames = [
file[plen:] for file in self.find_data_files(package, src_dir)
]
data.append( (package, src_dir, build_dir, filenames) )
return data
def find_data_files(self, package, src_dir):
"""Return filenames for package's data files in 'src_dir'"""
globs = self.package_data.get('',[])+self.package_data.get(package,[])
files = []
for pattern in globs:
# Each pattern has to be converted to a platform-specific path
files.extend(glob(os.path.join(src_dir, convert_path(pattern))))
return files
def build_package_data(self):
"""Copy data files into build directory"""
lastdir = None
for package, src_dir, build_dir, filenames in self.data_files:
for filename in filenames:
target = os.path.join(build_dir,filename)
self.mkpath(os.path.dirname(target))
self.copy_file(os.path.join(src_dir,filename), target)
def get_outputs(self, include_bytecode=1):
"""Return complete list of files copied to the build directory
This includes both '.py' files and data files, as well as '.pyc' and
'.pyo' files if 'include_bytecode' is true. (This method is needed for
the 'install_lib' command to do its job properly, and to generate a
correct installation manifest.)
"""
return _build_py.get_outputs(self,include_bytecode) + [
os.path.join(build_dir,filename)
for package,src_dir,build_dir,filenames in self.data_files
for filename in filenames
]
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