457 lines
16 KiB
Python
457 lines
16 KiB
Python
"""setuptools.command.bdist_egg
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Build .egg distributions"""
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from distutils.dir_util import remove_tree, mkpath
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from distutils import log
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from types import CodeType
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import sys
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import os
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import re
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import textwrap
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import marshal
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from pkg_resources import get_build_platform, Distribution, ensure_directory
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from setuptools.extension import Library
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from setuptools import Command
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from sysconfig import get_path, get_python_version
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def _get_purelib():
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return get_path("purelib")
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def strip_module(filename):
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if '.' in filename:
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filename = os.path.splitext(filename)[0]
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if filename.endswith('module'):
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filename = filename[:-6]
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return filename
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def sorted_walk(dir):
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"""Do os.walk in a reproducible way,
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independent of indeterministic filesystem readdir order
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"""
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for base, dirs, files in os.walk(dir):
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dirs.sort()
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files.sort()
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yield base, dirs, files
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def write_stub(resource, pyfile):
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_stub_template = textwrap.dedent("""
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def __bootstrap__():
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global __bootstrap__, __loader__, __file__
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import sys, pkg_resources, importlib.util
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__file__ = pkg_resources.resource_filename(__name__, %r)
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__loader__ = None; del __bootstrap__, __loader__
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spec = importlib.util.spec_from_file_location(__name__,__file__)
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mod = importlib.util.module_from_spec(spec)
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spec.loader.exec_module(mod)
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__bootstrap__()
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""").lstrip()
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with open(pyfile, 'w') as f:
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f.write(_stub_template % resource)
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class bdist_egg(Command):
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description = "create an \"egg\" distribution"
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user_options = [
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('bdist-dir=', 'b',
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"temporary directory for creating the distribution"),
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('plat-name=', 'p', "platform name to embed in generated filenames "
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"(default: %s)" % get_build_platform()),
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('exclude-source-files', None,
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"remove all .py files from the generated egg"),
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('keep-temp', 'k',
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"keep the pseudo-installation tree around after " +
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"creating the distribution archive"),
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('dist-dir=', 'd',
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"directory to put final built distributions in"),
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('skip-build', None,
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"skip rebuilding everything (for testing/debugging)"),
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]
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boolean_options = [
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'keep-temp', 'skip-build', 'exclude-source-files'
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]
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def initialize_options(self):
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self.bdist_dir = None
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self.plat_name = None
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self.keep_temp = 0
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self.dist_dir = None
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self.skip_build = 0
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self.egg_output = None
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self.exclude_source_files = None
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def finalize_options(self):
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ei_cmd = self.ei_cmd = self.get_finalized_command("egg_info")
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self.egg_info = ei_cmd.egg_info
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if self.bdist_dir is None:
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bdist_base = self.get_finalized_command('bdist').bdist_base
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self.bdist_dir = os.path.join(bdist_base, 'egg')
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if self.plat_name is None:
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self.plat_name = get_build_platform()
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self.set_undefined_options('bdist', ('dist_dir', 'dist_dir'))
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if self.egg_output is None:
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# Compute filename of the output egg
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basename = Distribution(
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None, None, ei_cmd.egg_name, ei_cmd.egg_version,
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get_python_version(),
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self.distribution.has_ext_modules() and self.plat_name
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).egg_name()
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self.egg_output = os.path.join(self.dist_dir, basename + '.egg')
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def do_install_data(self):
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# Hack for packages that install data to install's --install-lib
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self.get_finalized_command('install').install_lib = self.bdist_dir
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site_packages = os.path.normcase(os.path.realpath(_get_purelib()))
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old, self.distribution.data_files = self.distribution.data_files, []
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for item in old:
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if isinstance(item, tuple) and len(item) == 2:
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if os.path.isabs(item[0]):
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realpath = os.path.realpath(item[0])
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normalized = os.path.normcase(realpath)
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if normalized == site_packages or normalized.startswith(
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site_packages + os.sep
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):
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item = realpath[len(site_packages) + 1:], item[1]
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# XXX else: raise ???
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self.distribution.data_files.append(item)
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try:
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log.info("installing package data to %s", self.bdist_dir)
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self.call_command('install_data', force=0, root=None)
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finally:
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self.distribution.data_files = old
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def get_outputs(self):
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return [self.egg_output]
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def call_command(self, cmdname, **kw):
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"""Invoke reinitialized command `cmdname` with keyword args"""
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for dirname in INSTALL_DIRECTORY_ATTRS:
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kw.setdefault(dirname, self.bdist_dir)
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kw.setdefault('skip_build', self.skip_build)
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kw.setdefault('dry_run', self.dry_run)
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cmd = self.reinitialize_command(cmdname, **kw)
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self.run_command(cmdname)
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return cmd
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def run(self): # noqa: C901 # is too complex (14) # FIXME
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# Generate metadata first
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self.run_command("egg_info")
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# We run install_lib before install_data, because some data hacks
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# pull their data path from the install_lib command.
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log.info("installing library code to %s", self.bdist_dir)
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instcmd = self.get_finalized_command('install')
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old_root = instcmd.root
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instcmd.root = None
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if self.distribution.has_c_libraries() and not self.skip_build:
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self.run_command('build_clib')
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cmd = self.call_command('install_lib', warn_dir=0)
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instcmd.root = old_root
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all_outputs, ext_outputs = self.get_ext_outputs()
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self.stubs = []
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to_compile = []
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for (p, ext_name) in enumerate(ext_outputs):
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filename, ext = os.path.splitext(ext_name)
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pyfile = os.path.join(self.bdist_dir, strip_module(filename) +
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'.py')
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self.stubs.append(pyfile)
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log.info("creating stub loader for %s", ext_name)
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if not self.dry_run:
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write_stub(os.path.basename(ext_name), pyfile)
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to_compile.append(pyfile)
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ext_outputs[p] = ext_name.replace(os.sep, '/')
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if to_compile:
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cmd.byte_compile(to_compile)
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if self.distribution.data_files:
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self.do_install_data()
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# Make the EGG-INFO directory
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archive_root = self.bdist_dir
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egg_info = os.path.join(archive_root, 'EGG-INFO')
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self.mkpath(egg_info)
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if self.distribution.scripts:
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script_dir = os.path.join(egg_info, 'scripts')
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log.info("installing scripts to %s", script_dir)
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self.call_command('install_scripts', install_dir=script_dir,
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no_ep=1)
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self.copy_metadata_to(egg_info)
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native_libs = os.path.join(egg_info, "native_libs.txt")
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if all_outputs:
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log.info("writing %s", native_libs)
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if not self.dry_run:
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ensure_directory(native_libs)
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libs_file = open(native_libs, 'wt')
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libs_file.write('\n'.join(all_outputs))
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libs_file.write('\n')
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libs_file.close()
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elif os.path.isfile(native_libs):
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log.info("removing %s", native_libs)
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if not self.dry_run:
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os.unlink(native_libs)
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write_safety_flag(
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os.path.join(archive_root, 'EGG-INFO'), self.zip_safe()
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)
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if os.path.exists(os.path.join(self.egg_info, 'depends.txt')):
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log.warn(
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"WARNING: 'depends.txt' will not be used by setuptools 0.6!\n"
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"Use the install_requires/extras_require setup() args instead."
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)
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if self.exclude_source_files:
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self.zap_pyfiles()
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# Make the archive
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make_zipfile(self.egg_output, archive_root, verbose=self.verbose,
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dry_run=self.dry_run, mode=self.gen_header())
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if not self.keep_temp:
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remove_tree(self.bdist_dir, dry_run=self.dry_run)
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# Add to 'Distribution.dist_files' so that the "upload" command works
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getattr(self.distribution, 'dist_files', []).append(
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('bdist_egg', get_python_version(), self.egg_output))
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def zap_pyfiles(self):
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log.info("Removing .py files from temporary directory")
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for base, dirs, files in walk_egg(self.bdist_dir):
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for name in files:
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path = os.path.join(base, name)
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if name.endswith('.py'):
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log.debug("Deleting %s", path)
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os.unlink(path)
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if base.endswith('__pycache__'):
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path_old = path
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pattern = r'(?P<name>.+)\.(?P<magic>[^.]+)\.pyc'
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m = re.match(pattern, name)
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path_new = os.path.join(
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base, os.pardir, m.group('name') + '.pyc')
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log.info(
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"Renaming file from [%s] to [%s]"
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% (path_old, path_new))
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try:
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os.remove(path_new)
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except OSError:
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pass
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os.rename(path_old, path_new)
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def zip_safe(self):
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safe = getattr(self.distribution, 'zip_safe', None)
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if safe is not None:
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return safe
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log.warn("zip_safe flag not set; analyzing archive contents...")
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return analyze_egg(self.bdist_dir, self.stubs)
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def gen_header(self):
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return 'w'
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def copy_metadata_to(self, target_dir):
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"Copy metadata (egg info) to the target_dir"
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# normalize the path (so that a forward-slash in egg_info will
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# match using startswith below)
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norm_egg_info = os.path.normpath(self.egg_info)
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prefix = os.path.join(norm_egg_info, '')
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for path in self.ei_cmd.filelist.files:
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if path.startswith(prefix):
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target = os.path.join(target_dir, path[len(prefix):])
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ensure_directory(target)
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self.copy_file(path, target)
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def get_ext_outputs(self):
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"""Get a list of relative paths to C extensions in the output distro"""
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all_outputs = []
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ext_outputs = []
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paths = {self.bdist_dir: ''}
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for base, dirs, files in sorted_walk(self.bdist_dir):
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for filename in files:
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if os.path.splitext(filename)[1].lower() in NATIVE_EXTENSIONS:
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all_outputs.append(paths[base] + filename)
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for filename in dirs:
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paths[os.path.join(base, filename)] = (paths[base] +
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filename + '/')
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if self.distribution.has_ext_modules():
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build_cmd = self.get_finalized_command('build_ext')
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for ext in build_cmd.extensions:
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if isinstance(ext, Library):
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continue
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fullname = build_cmd.get_ext_fullname(ext.name)
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filename = build_cmd.get_ext_filename(fullname)
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if not os.path.basename(filename).startswith('dl-'):
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if os.path.exists(os.path.join(self.bdist_dir, filename)):
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ext_outputs.append(filename)
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return all_outputs, ext_outputs
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NATIVE_EXTENSIONS = dict.fromkeys('.dll .so .dylib .pyd'.split())
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def walk_egg(egg_dir):
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"""Walk an unpacked egg's contents, skipping the metadata directory"""
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walker = sorted_walk(egg_dir)
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base, dirs, files = next(walker)
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if 'EGG-INFO' in dirs:
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dirs.remove('EGG-INFO')
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yield base, dirs, files
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for bdf in walker:
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yield bdf
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def analyze_egg(egg_dir, stubs):
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# check for existing flag in EGG-INFO
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for flag, fn in safety_flags.items():
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if os.path.exists(os.path.join(egg_dir, 'EGG-INFO', fn)):
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return flag
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if not can_scan():
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return False
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safe = True
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for base, dirs, files in walk_egg(egg_dir):
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for name in files:
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if name.endswith('.py') or name.endswith('.pyw'):
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continue
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elif name.endswith('.pyc') or name.endswith('.pyo'):
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# always scan, even if we already know we're not safe
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safe = scan_module(egg_dir, base, name, stubs) and safe
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return safe
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def write_safety_flag(egg_dir, safe):
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# Write or remove zip safety flag file(s)
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for flag, fn in safety_flags.items():
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fn = os.path.join(egg_dir, fn)
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if os.path.exists(fn):
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if safe is None or bool(safe) != flag:
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os.unlink(fn)
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elif safe is not None and bool(safe) == flag:
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f = open(fn, 'wt')
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f.write('\n')
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f.close()
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safety_flags = {
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True: 'zip-safe',
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False: 'not-zip-safe',
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}
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def scan_module(egg_dir, base, name, stubs):
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"""Check whether module possibly uses unsafe-for-zipfile stuff"""
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filename = os.path.join(base, name)
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if filename[:-1] in stubs:
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return True # Extension module
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pkg = base[len(egg_dir) + 1:].replace(os.sep, '.')
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module = pkg + (pkg and '.' or '') + os.path.splitext(name)[0]
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if sys.version_info < (3, 7):
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skip = 12 # skip magic & date & file size
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else:
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skip = 16 # skip magic & reserved? & date & file size
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f = open(filename, 'rb')
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f.read(skip)
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code = marshal.load(f)
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f.close()
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safe = True
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symbols = dict.fromkeys(iter_symbols(code))
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for bad in ['__file__', '__path__']:
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if bad in symbols:
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log.warn("%s: module references %s", module, bad)
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safe = False
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if 'inspect' in symbols:
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for bad in [
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'getsource', 'getabsfile', 'getsourcefile', 'getfile'
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'getsourcelines', 'findsource', 'getcomments', 'getframeinfo',
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'getinnerframes', 'getouterframes', 'stack', 'trace'
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]:
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if bad in symbols:
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log.warn("%s: module MAY be using inspect.%s", module, bad)
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safe = False
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return safe
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def iter_symbols(code):
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"""Yield names and strings used by `code` and its nested code objects"""
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for name in code.co_names:
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yield name
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for const in code.co_consts:
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if isinstance(const, str):
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yield const
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elif isinstance(const, CodeType):
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for name in iter_symbols(const):
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yield name
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def can_scan():
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if not sys.platform.startswith('java') and sys.platform != 'cli':
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# CPython, PyPy, etc.
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return True
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log.warn("Unable to analyze compiled code on this platform.")
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log.warn("Please ask the author to include a 'zip_safe'"
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" setting (either True or False) in the package's setup.py")
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# Attribute names of options for commands that might need to be convinced to
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# install to the egg build directory
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INSTALL_DIRECTORY_ATTRS = [
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'install_lib', 'install_dir', 'install_data', 'install_base'
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]
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def make_zipfile(zip_filename, base_dir, verbose=0, dry_run=0, compress=True,
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mode='w'):
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"""Create a zip file from all the files under 'base_dir'. The output
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zip file will be named 'base_dir' + ".zip". Uses either the "zipfile"
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Python module (if available) or the InfoZIP "zip" utility (if installed
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and found on the default search path). If neither tool is available,
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raises DistutilsExecError. Returns the name of the output zip file.
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"""
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import zipfile
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mkpath(os.path.dirname(zip_filename), dry_run=dry_run)
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log.info("creating '%s' and adding '%s' to it", zip_filename, base_dir)
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def visit(z, dirname, names):
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for name in names:
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path = os.path.normpath(os.path.join(dirname, name))
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if os.path.isfile(path):
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p = path[len(base_dir) + 1:]
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if not dry_run:
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z.write(path, p)
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log.debug("adding '%s'", p)
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compression = zipfile.ZIP_DEFLATED if compress else zipfile.ZIP_STORED
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if not dry_run:
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z = zipfile.ZipFile(zip_filename, mode, compression=compression)
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for dirname, dirs, files in sorted_walk(base_dir):
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visit(z, dirname, files)
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z.close()
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else:
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for dirname, dirs, files in sorted_walk(base_dir):
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visit(None, dirname, files)
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return zip_filename
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