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Filename :
build_py.py
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from glob import glob from distutils.util import convert_path import distutils.command.build_py as orig import os import fnmatch import textwrap import io import distutils.errors import itertools import stat from setuptools.extern.more_itertools import unique_everseen def make_writable(target): os.chmod(target, os.stat(target).st_mode | stat.S_IWRITE) class build_py(orig.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): orig.build_py.finalize_options(self) self.package_data = self.distribution.package_data self.exclude_package_data = self.distribution.exclude_package_data or {} if 'data_files' in self.__dict__: del self.__dict__['data_files'] self.__updated_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(orig.build_py.get_outputs(self, include_bytecode=0)) def __getattr__(self, attr): "lazily compute data files" if attr == 'data_files': self.data_files = self._get_data_files() return self.data_files return orig.build_py.__getattr__(self, attr) def build_module(self, module, module_file, package): outfile, copied = orig.build_py.build_module(self, module, module_file, package) if copied: self.__updated_files.append(outfile) return outfile, copied def _get_data_files(self): """Generate list of '(package,src_dir,build_dir,filenames)' tuples""" self.analyze_manifest() return list(map(self._get_pkg_data_files, self.packages or ())) def _get_pkg_data_files(self, package): # 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('.'))) # Strip directory from globbed filenames filenames = [ os.path.relpath(file, src_dir) for file in self.find_data_files(package, src_dir) ] return package, src_dir, build_dir, filenames def find_data_files(self, package, src_dir): """Return filenames for package's data files in 'src_dir'""" patterns = self._get_platform_patterns( self.package_data, package, src_dir, ) globs_expanded = map(glob, patterns) # flatten the expanded globs into an iterable of matches globs_matches = itertools.chain.from_iterable(globs_expanded) glob_files = filter(os.path.isfile, globs_matches) files = itertools.chain( self.manifest_files.get(package, []), glob_files, ) return self.exclude_data_files(package, src_dir, files) def build_package_data(self): """Copy data files into build directory""" 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)) srcfile = os.path.join(src_dir, filename) outf, copied = self.copy_file(srcfile, target) make_writable(target) srcfile = os.path.abspath(srcfile) def analyze_manifest(self): self.manifest_files = mf = {} if not self.distribution.include_package_data: return src_dirs = {} for package in self.packages or (): # Locate package source directory src_dirs[assert_relative(self.get_package_dir(package))] = package self.run_command('egg_info') ei_cmd = self.get_finalized_command('egg_info') for path in ei_cmd.filelist.files: d, f = os.path.split(assert_relative(path)) prev = None oldf = f while d and d != prev and d not in src_dirs: prev = d d, df = os.path.split(d) f = os.path.join(df, f) if d in src_dirs: if path.endswith('.py') and f == oldf: continue # it's a module, not data mf.setdefault(src_dirs[d], []).append(path) def get_data_files(self): pass # Lazily compute data files in _get_data_files() function. def check_package(self, package, package_dir): """Check namespace packages' __init__ for declare_namespace""" try: return self.packages_checked[package] except KeyError: pass init_py = orig.build_py.check_package(self, package, package_dir) self.packages_checked[package] = init_py if not init_py or not self.distribution.namespace_packages: return init_py for pkg in self.distribution.namespace_packages: if pkg == package or pkg.startswith(package + '.'): break else: return init_py with io.open(init_py, 'rb') as f: contents = f.read() if b'declare_namespace' not in contents: raise distutils.errors.DistutilsError( "Namespace package problem: %s is a namespace package, but " "its\n__init__.py does not call declare_namespace()! Please " 'fix it.\n(See the setuptools manual under ' '"Namespace Packages" for details.)\n"' % (package,) ) return init_py def initialize_options(self): self.packages_checked = {} orig.build_py.initialize_options(self) def get_package_dir(self, package): res = orig.build_py.get_package_dir(self, package) if self.distribution.src_root is not None: return os.path.join(self.distribution.src_root, res) return res def exclude_data_files(self, package, src_dir, files): """Filter filenames for package's data files in 'src_dir'""" files = list(files) patterns = self._get_platform_patterns( self.exclude_package_data, package, src_dir, ) match_groups = (fnmatch.filter(files, pattern) for pattern in patterns) # flatten the groups of matches into an iterable of matches matches = itertools.chain.from_iterable(match_groups) bad = set(matches) keepers = (fn for fn in files if fn not in bad) # ditch dupes return list(unique_everseen(keepers)) @staticmethod def _get_platform_patterns(spec, package, src_dir): """ yield platform-specific path patterns (suitable for glob or fn_match) from a glob-based spec (such as self.package_data or self.exclude_package_data) matching package in src_dir. """ raw_patterns = itertools.chain( spec.get('', []), spec.get(package, []), ) return ( # Each pattern has to be converted to a platform-specific path os.path.join(src_dir, convert_path(pattern)) for pattern in raw_patterns ) def assert_relative(path): if not os.path.isabs(path): return path from distutils.errors import DistutilsSetupError msg = ( textwrap.dedent( """ Error: setup script specifies an absolute path: %s setup() arguments must *always* be /-separated paths relative to the setup.py directory, *never* absolute paths. """ ).lstrip() % path ) raise DistutilsSetupError(msg)