JezK
Edit File: bdist_egg.py
"""setuptools.command.bdist_egg Build .egg distributions""" from distutils.errors import DistutilsSetupError from distutils.dir_util import remove_tree, mkpath from distutils import log from types import CodeType import sys import os import re import textwrap import marshal from setuptools.extern import six from pkg_resources import get_build_platform, Distribution, ensure_directory from pkg_resources import EntryPoint from setuptools.extension import Library from setuptools import Command try: # Python 2.7 or >=3.2 from sysconfig import get_path, get_python_version def _get_purelib(): return get_path("purelib") except ImportError: from distutils.sysconfig import get_python_lib, get_python_version def _get_purelib(): return get_python_lib(False) def strip_module(filename): if '.' in filename: filename = os.path.splitext(filename)[0] if filename.endswith('module'): filename = filename[:-6] return filename def sorted_walk(dir): """Do os.walk in a reproducible way, independent of indeterministic filesystem readdir order """ for base, dirs, files in os.walk(dir): dirs.sort() files.sort() yield base, dirs, files def write_stub(resource, pyfile): _stub_template = textwrap.dedent(""" def __bootstrap__(): global __bootstrap__, __loader__, __file__ import sys, pkg_resources, imp __file__ = pkg_resources.resource_filename(__name__, %r) __loader__ = None; del __bootstrap__, __loader__ imp.load_dynamic(__name__,__file__) __bootstrap__() """).lstrip() with open(pyfile, 'w') as f: f.write(_stub_template % resource) class bdist_egg(Command): description = "create an \"egg\" distribution" user_options = [ ('bdist-dir=', 'b', "temporary directory for creating the distribution"), ('plat-name=', 'p', "platform name to embed in generated filenames " "(default: %s)" % get_build_platform()), ('exclude-source-files', None, "remove all .py files from the generated egg"), ('keep-temp', 'k', "keep the pseudo-installation tree around after " + "creating the distribution archive"), ('dist-dir=', 'd', "directory to put final built distributions in"), ('skip-build', None, "skip rebuilding everything (for testing/debugging)"), ] boolean_options = [ 'keep-temp', 'skip-build', 'exclude-source-files' ] def initialize_options(self): self.bdist_dir = None self.plat_name = None self.keep_temp = 0 self.dist_dir = None self.skip_build = 0 self.egg_output = None self.exclude_source_files = None def finalize_options(self): ei_cmd = self.ei_cmd = self.get_finalized_command("egg_info") self.egg_info = ei_cmd.egg_info if self.bdist_dir is None: bdist_base = self.get_finalized_command('bdist').bdist_base self.bdist_dir = os.path.join(bdist_base, 'egg') if self.plat_name is None: self.plat_name = get_build_platform() self.set_undefined_options('bdist', ('dist_dir', 'dist_dir')) if self.egg_output is None: # Compute filename of the output egg basename = Distribution( None, None, ei_cmd.egg_name, ei_cmd.egg_version, get_python_version(), self.distribution.has_ext_modules() and self.plat_name ).egg_name() self.egg_output = os.path.join(self.dist_dir, basename + '.egg') def do_install_data(self): # Hack for packages that install data to install's --install-lib self.get_finalized_command('install').install_lib = self.bdist_dir site_packages = os.path.normcase(os.path.realpath(_get_purelib())) old, self.distribution.data_files = self.distribution.data_files, [] for item in old: if isinstance(item, tuple) and len(item) == 2: if os.path.isabs(item[0]): realpath = os.path.realpath(item[0]) normalized = os.path.normcase(realpath) if normalized == site_packages or normalized.startswith( site_packages + os.sep ): item = realpath[len(site_packages) + 1:], item[1] # XXX else: raise ??? self.distribution.data_files.append(item) try: log.info("installing package data to %s", self.bdist_dir) self.call_command('install_data', force=0, root=None) finally: self.distribution.data_files = old def get_outputs(self): return [self.egg_output] def call_command(self, cmdname, **kw): """Invoke reinitialized command `cmdname` with keyword args""" for dirname in INSTALL_DIRECTORY_ATTRS: kw.setdefault(dirname, self.bdist_dir) kw.setdefault('skip_build', self.skip_build) kw.setdefault('dry_run', self.dry_run) cmd = self.reinitialize_command(cmdname, **kw) self.run_command(cmdname) return cmd def run(self): # Generate metadata first self.run_command("egg_info") # We run install_lib before install_data, because some data hacks # pull their data path from the install_lib command. log.info("installing library code to %s", self.bdist_dir) instcmd = self.get_finalized_command('install') old_root = instcmd.root instcmd.root = None if self.distribution.has_c_libraries() and not self.skip_build: self.run_command('build_clib') cmd = self.call_command('install_lib', warn_dir=0) instcmd.root = old_root all_outputs, ext_outputs = self.get_ext_outputs() self.stubs = [] to_compile = [] for (p, ext_name) in enumerate(ext_outputs): filename, ext = os.path.splitext(ext_name) pyfile = os.path.join(self.bdist_dir, strip_module(filename) + '.py') self.stubs.append(pyfile) log.info("creating stub loader for %s", ext_name) if not self.dry_run: write_stub(os.path.basename(ext_name), pyfile) to_compile.append(pyfile) ext_outputs[p] = ext_name.replace(os.sep, '/') if to_compile: cmd.byte_compile(to_compile) if self.distribution.data_files: self.do_install_data() # Make the EGG-INFO directory archive_root = self.bdist_dir egg_info = os.path.join(archive_root, 'EGG-INFO') self.mkpath(egg_info) if self.distribution.scripts: script_dir = os.path.join(egg_info, 'scripts') log.info("installing scripts to %s", script_dir) self.call_command('install_scripts', install_dir=script_dir, no_ep=1) self.copy_metadata_to(egg_info) native_libs = os.path.join(egg_info, "native_libs.txt") if all_outputs: log.info("writing %s", native_libs) if not self.dry_run: ensure_directory(native_libs) libs_file = open(native_libs, 'wt') libs_file.write('\n'.join(all_outputs)) libs_file.write('\n') libs_file.close() elif os.path.isfile(native_libs): log.info("removing %s", native_libs) if not self.dry_run: os.unlink(native_libs) write_safety_flag( os.path.join(archive_root, 'EGG-INFO'), self.zip_safe() ) if os.path.exists(os.path.join(self.egg_info, 'depends.txt')): log.warn( "WARNING: 'depends.txt' will not be used by setuptools 0.6!\n" "Use the install_requires/extras_require setup() args instead." ) if self.exclude_source_files: self.zap_pyfiles() # Make the archive make_zipfile(self.egg_output, archive_root, verbose=self.verbose, dry_run=self.dry_run, mode=self.gen_header()) if not self.keep_temp: remove_tree(self.bdist_dir, dry_run=self.dry_run) # Add to 'Distribution.dist_files' so that the "upload" command works getattr(self.distribution, 'dist_files', []).append( ('bdist_egg', get_python_version(), self.egg_output)) def zap_pyfiles(self): log.info("Removing .py files from temporary directory") for base, dirs, files in walk_egg(self.bdist_dir): for name in files: path = os.path.join(base, name) if name.endswith('.py'): log.debug("Deleting %s", path) os.unlink(path) if base.endswith('__pycache__'): path_old = path pattern = r'(?P<name>.+)\.(?P<magic>[^.]+)\.pyc' m = re.match(pattern, name) path_new = os.path.join( base, os.pardir, m.group('name') + '.pyc') log.info( "Renaming file from [%s] to [%s]" % (path_old, path_new)) try: os.remove(path_new) except OSError: pass os.rename(path_old, path_new) def zip_safe(self): safe = getattr(self.distribution, 'zip_safe', None) if safe is not None: return safe log.warn("zip_safe flag not set; analyzing archive contents...") return analyze_egg(self.bdist_dir, self.stubs) def gen_header(self): epm = EntryPoint.parse_map(self.distribution.entry_points or '') ep = epm.get('setuptools.installation', {}).get('eggsecutable') if ep is None: return 'w' # not an eggsecutable, do it the usual way. if not ep.attrs or ep.extras: raise DistutilsSetupError( "eggsecutable entry point (%r) cannot have 'extras' " "or refer to a module" % (ep,) ) pyver = '{}.{}'.format(*sys.version_info) pkg = ep.module_name full = '.'.join(ep.attrs) base = ep.attrs[0] basename = os.path.basename(self.egg_output) header = ( "#!/bin/sh\n" 'if [ `basename $0` = "%(basename)s" ]\n' 'then exec python%(pyver)s -c "' "import sys, os; sys.path.insert(0, os.path.abspath('$0')); " "from %(pkg)s import %(base)s; sys.exit(%(full)s())" '" "$@"\n' 'else\n' ' echo $0 is not the correct name for this egg file.\n' ' echo Please rename it back to %(basename)s and try again.\n' ' exec false\n' 'fi\n' ) % locals() if not self.dry_run: mkpath(os.path.dirname(self.egg_output), dry_run=self.dry_run) f = open(self.egg_output, 'w') f.write(header) f.close() return 'a' def copy_metadata_to(self, target_dir): "Copy metadata (egg info) to the target_dir" # normalize the path (so that a forward-slash in egg_info will # match using startswith below) norm_egg_info = os.path.normpath(self.egg_info) prefix = os.path.join(norm_egg_info, '') for path in self.ei_cmd.filelist.files: if path.startswith(prefix): target = os.path.join(target_dir, path[len(prefix):]) ensure_directory(target) self.copy_file(path, target) def get_ext_outputs(self): """Get a list of relative paths to C extensions in the output distro""" all_outputs = [] ext_outputs = [] paths = {self.bdist_dir: ''} for base, dirs, files in sorted_walk(self.bdist_dir): for filename in files: if os.path.splitext(filename)[1].lower() in NATIVE_EXTENSIONS: all_outputs.append(paths[base] + filename) for filename in dirs: paths[os.path.join(base, filename)] = (paths[base] + filename + '/') if self.distribution.has_ext_modules(): build_cmd = self.get_finalized_command('build_ext') for ext in build_cmd.extensions: if isinstance(ext, Library): continue fullname = build_cmd.get_ext_fullname(ext.name) filename = build_cmd.get_ext_filename(fullname) if not os.path.basename(filename).startswith('dl-'): if os.path.exists(os.path.join(self.bdist_dir, filename)): ext_outputs.append(filename) return all_outputs, ext_outputs NATIVE_EXTENSIONS = dict.fromkeys('.dll .so .dylib .pyd'.split()) def walk_egg(egg_dir): """Walk an unpacked egg's contents, skipping the metadata directory""" walker = sorted_walk(egg_dir) base, dirs, files = next(walker) if 'EGG-INFO' in dirs: dirs.remove('EGG-INFO') yield base, dirs, files for bdf in walker: yield bdf def analyze_egg(egg_dir, stubs): # check for existing flag in EGG-INFO for flag, fn in safety_flags.items(): if os.path.exists(os.path.join(egg_dir, 'EGG-INFO', fn)): return flag if not can_scan(): return False safe = True for base, dirs, files in walk_egg(egg_dir): for name in files: if name.endswith('.py') or name.endswith('.pyw'): continue elif name.endswith('.pyc') or name.endswith('.pyo'): # always scan, even if we already know we're not safe safe = scan_module(egg_dir, base, name, stubs) and safe return safe def write_safety_flag(egg_dir, safe): # Write or remove zip safety flag file(s) for flag, fn in safety_flags.items(): fn = os.path.join(egg_dir, fn) if os.path.exists(fn): if safe is None or bool(safe) != flag: os.unlink(fn) elif safe is not None and bool(safe) == flag: f = open(fn, 'wt') f.write('\n') f.close() safety_flags = { True: 'zip-safe', False: 'not-zip-safe', } def scan_module(egg_dir, base, name, stubs): """Check whether module possibly uses unsafe-for-zipfile stuff""" filename = os.path.join(base, name) if filename[:-1] in stubs: return True # Extension module pkg = base[len(egg_dir) + 1:].replace(os.sep, '.') module = pkg + (pkg and '.' or '') + os.path.splitext(name)[0] if six.PY2: skip = 8 # skip magic & date elif sys.version_info < (3, 7): skip = 12 # skip magic & date & file size else: skip = 16 # skip magic & reserved? & date & file size f = open(filename, 'rb') f.read(skip) code = marshal.load(f) f.close() safe = True symbols = dict.fromkeys(iter_symbols(code)) for bad in ['__file__', '__path__']: if bad in symbols: log.warn("%s: module references %s", module, bad) safe = False if 'inspect' in symbols: for bad in [ 'getsource', 'getabsfile', 'getsourcefile', 'getfile' 'getsourcelines', 'findsource', 'getcomments', 'getframeinfo', 'getinnerframes', 'getouterframes', 'stack', 'trace' ]: if bad in symbols: log.warn("%s: module MAY be using inspect.%s", module, bad) safe = False return safe def iter_symbols(code): """Yield names and strings used by `code` and its nested code objects""" for name in code.co_names: yield name for const in code.co_consts: if isinstance(const, six.string_types): yield const elif isinstance(const, CodeType): for name in iter_symbols(const): yield name def can_scan(): if not sys.platform.startswith('java') and sys.platform != 'cli': # CPython, PyPy, etc. return True log.warn("Unable to analyze compiled code on this platform.") log.warn("Please ask the author to include a 'zip_safe'" " setting (either True or False) in the package's setup.py") # Attribute names of options for commands that might need to be convinced to # install to the egg build directory INSTALL_DIRECTORY_ATTRS = [ 'install_lib', 'install_dir', 'install_data', 'install_base' ] def make_zipfile(zip_filename, base_dir, verbose=0, dry_run=0, compress=True, mode='w'): """Create a zip file from all the files under 'base_dir'. The output zip file will be named 'base_dir' + ".zip". Uses either the "zipfile" Python module (if available) or the InfoZIP "zip" utility (if installed and found on the default search path). If neither tool is available, raises DistutilsExecError. Returns the name of the output zip file. """ import zipfile mkpath(os.path.dirname(zip_filename), dry_run=dry_run) log.info("creating '%s' and adding '%s' to it", zip_filename, base_dir) def visit(z, dirname, names): for name in names: path = os.path.normpath(os.path.join(dirname, name)) if os.path.isfile(path): p = path[len(base_dir) + 1:] if not dry_run: z.write(path, p) log.debug("adding '%s'", p) compression = zipfile.ZIP_DEFLATED if compress else zipfile.ZIP_STORED if not dry_run: z = zipfile.ZipFile(zip_filename, mode, compression=compression) for dirname, dirs, files in sorted_walk(base_dir): visit(z, dirname, files) z.close() else: for dirname, dirs, files in sorted_walk(base_dir): visit(None, dirname, files) return zip_filename