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503 lines
18 KiB
Python
503 lines
18 KiB
Python
5 years ago
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"""setuptools.command.bdist_egg
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Build .egg distributions"""
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from distutils.errors import DistutilsSetupError
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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 setuptools.extern import six
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from pkg_resources import get_build_platform, Distribution, ensure_directory
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from pkg_resources import EntryPoint
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from setuptools.extension import Library
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from setuptools import Command
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try:
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# Python 2.7 or >=3.2
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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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except ImportError:
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from distutils.sysconfig import get_python_lib, get_python_version
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def _get_purelib():
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return get_python_lib(False)
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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, imp
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__file__ = pkg_resources.resource_filename(__name__, %r)
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__loader__ = None; del __bootstrap__, __loader__
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imp.load_dynamic(__name__,__file__)
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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):
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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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epm = EntryPoint.parse_map(self.distribution.entry_points or '')
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ep = epm.get('setuptools.installation', {}).get('eggsecutable')
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if ep is None:
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return 'w' # not an eggsecutable, do it the usual way.
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if not ep.attrs or ep.extras:
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raise DistutilsSetupError(
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"eggsecutable entry point (%r) cannot have 'extras' "
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"or refer to a module" % (ep,)
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)
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pyver = sys.version[:3]
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pkg = ep.module_name
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full = '.'.join(ep.attrs)
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base = ep.attrs[0]
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basename = os.path.basename(self.egg_output)
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header = (
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"#!/bin/sh\n"
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'if [ `basename $0` = "%(basename)s" ]\n'
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'then exec python%(pyver)s -c "'
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"import sys, os; sys.path.insert(0, os.path.abspath('$0')); "
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"from %(pkg)s import %(base)s; sys.exit(%(full)s())"
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'" "$@"\n'
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'else\n'
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' echo $0 is not the correct name for this egg file.\n'
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' echo Please rename it back to %(basename)s and try again.\n'
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' exec false\n'
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'fi\n'
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) % locals()
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if not self.dry_run:
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mkpath(os.path.dirname(self.egg_output), dry_run=self.dry_run)
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f = open(self.egg_output, 'w')
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f.write(header)
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f.close()
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return 'a'
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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"""
|
||
|
|
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
|