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annotate venv/lib/python2.7/site-packages/setuptools/command/bdist_egg.py @ 0:d67268158946 draft

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planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
author bcclaywell
date Mon, 12 Oct 2015 17:43:33 -0400
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1 """setuptools.command.bdist_egg
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2
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3 Build .egg distributions"""
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4
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5 from distutils.errors import DistutilsSetupError
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6 from distutils.dir_util import remove_tree, mkpath
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7 from distutils import log
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8 from types import CodeType
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9 import sys
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10 import os
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11 import marshal
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12 import textwrap
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13
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14 from pkg_resources import get_build_platform, Distribution, ensure_directory
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15 from pkg_resources import EntryPoint
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16 from setuptools.compat import basestring
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17 from setuptools.extension import Library
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18 from setuptools import Command
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19
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20 try:
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21 # Python 2.7 or >=3.2
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22 from sysconfig import get_path, get_python_version
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23
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24 def _get_purelib():
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25 return get_path("purelib")
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26 except ImportError:
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27 from distutils.sysconfig import get_python_lib, get_python_version
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28
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29 def _get_purelib():
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30 return get_python_lib(False)
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32
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33 def strip_module(filename):
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34 if '.' in filename:
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35 filename = os.path.splitext(filename)[0]
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36 if filename.endswith('module'):
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37 filename = filename[:-6]
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38 return filename
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39
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40
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41 def write_stub(resource, pyfile):
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42 _stub_template = textwrap.dedent("""
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43 def __bootstrap__():
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44 global __bootstrap__, __loader__, __file__
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45 import sys, pkg_resources, imp
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46 __file__ = pkg_resources.resource_filename(__name__, %r)
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47 __loader__ = None; del __bootstrap__, __loader__
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48 imp.load_dynamic(__name__,__file__)
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49 __bootstrap__()
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50 """).lstrip()
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51 with open(pyfile, 'w') as f:
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52 f.write(_stub_template % resource)
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53
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54
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55 class bdist_egg(Command):
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56 description = "create an \"egg\" distribution"
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57
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58 user_options = [
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59 ('bdist-dir=', 'b',
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60 "temporary directory for creating the distribution"),
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61 ('plat-name=', 'p', "platform name to embed in generated filenames "
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62 "(default: %s)" % get_build_platform()),
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63 ('exclude-source-files', None,
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64 "remove all .py files from the generated egg"),
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65 ('keep-temp', 'k',
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66 "keep the pseudo-installation tree around after " +
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67 "creating the distribution archive"),
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68 ('dist-dir=', 'd',
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69 "directory to put final built distributions in"),
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70 ('skip-build', None,
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71 "skip rebuilding everything (for testing/debugging)"),
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72 ]
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73
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74 boolean_options = [
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75 'keep-temp', 'skip-build', 'exclude-source-files'
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76 ]
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77
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78 def initialize_options(self):
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79 self.bdist_dir = None
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80 self.plat_name = None
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81 self.keep_temp = 0
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82 self.dist_dir = None
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83 self.skip_build = 0
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84 self.egg_output = None
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85 self.exclude_source_files = None
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86
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87 def finalize_options(self):
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88 ei_cmd = self.ei_cmd = self.get_finalized_command("egg_info")
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89 self.egg_info = ei_cmd.egg_info
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90
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91 if self.bdist_dir is None:
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92 bdist_base = self.get_finalized_command('bdist').bdist_base
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93 self.bdist_dir = os.path.join(bdist_base, 'egg')
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94
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95 if self.plat_name is None:
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96 self.plat_name = get_build_platform()
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97
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98 self.set_undefined_options('bdist', ('dist_dir', 'dist_dir'))
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99
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100 if self.egg_output is None:
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101
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102 # Compute filename of the output egg
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103 basename = Distribution(
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104 None, None, ei_cmd.egg_name, ei_cmd.egg_version,
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105 get_python_version(),
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106 self.distribution.has_ext_modules() and self.plat_name
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107 ).egg_name()
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108
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109 self.egg_output = os.path.join(self.dist_dir, basename + '.egg')
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110
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111 def do_install_data(self):
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112 # Hack for packages that install data to install's --install-lib
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113 self.get_finalized_command('install').install_lib = self.bdist_dir
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114
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115 site_packages = os.path.normcase(os.path.realpath(_get_purelib()))
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116 old, self.distribution.data_files = self.distribution.data_files, []
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117
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118 for item in old:
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119 if isinstance(item, tuple) and len(item) == 2:
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120 if os.path.isabs(item[0]):
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121 realpath = os.path.realpath(item[0])
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122 normalized = os.path.normcase(realpath)
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123 if normalized == site_packages or normalized.startswith(
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124 site_packages + os.sep
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125 ):
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126 item = realpath[len(site_packages) + 1:], item[1]
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127 # XXX else: raise ???
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128 self.distribution.data_files.append(item)
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129
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130 try:
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131 log.info("installing package data to %s" % self.bdist_dir)
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132 self.call_command('install_data', force=0, root=None)
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133 finally:
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134 self.distribution.data_files = old
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135
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136 def get_outputs(self):
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137 return [self.egg_output]
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138
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139 def call_command(self, cmdname, **kw):
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140 """Invoke reinitialized command `cmdname` with keyword args"""
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141 for dirname in INSTALL_DIRECTORY_ATTRS:
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142 kw.setdefault(dirname, self.bdist_dir)
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143 kw.setdefault('skip_build', self.skip_build)
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144 kw.setdefault('dry_run', self.dry_run)
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145 cmd = self.reinitialize_command(cmdname, **kw)
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146 self.run_command(cmdname)
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147 return cmd
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148
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149 def run(self):
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150 # Generate metadata first
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151 self.run_command("egg_info")
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152 # We run install_lib before install_data, because some data hacks
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153 # pull their data path from the install_lib command.
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154 log.info("installing library code to %s" % self.bdist_dir)
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155 instcmd = self.get_finalized_command('install')
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156 old_root = instcmd.root
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157 instcmd.root = None
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158 if self.distribution.has_c_libraries() and not self.skip_build:
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159 self.run_command('build_clib')
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160 cmd = self.call_command('install_lib', warn_dir=0)
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161 instcmd.root = old_root
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162
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163 all_outputs, ext_outputs = self.get_ext_outputs()
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164 self.stubs = []
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165 to_compile = []
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166 for (p, ext_name) in enumerate(ext_outputs):
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167 filename, ext = os.path.splitext(ext_name)
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168 pyfile = os.path.join(self.bdist_dir, strip_module(filename) +
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169 '.py')
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170 self.stubs.append(pyfile)
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171 log.info("creating stub loader for %s" % ext_name)
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172 if not self.dry_run:
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173 write_stub(os.path.basename(ext_name), pyfile)
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174 to_compile.append(pyfile)
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175 ext_outputs[p] = ext_name.replace(os.sep, '/')
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176
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177 if to_compile:
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178 cmd.byte_compile(to_compile)
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179 if self.distribution.data_files:
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180 self.do_install_data()
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181
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182 # Make the EGG-INFO directory
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183 archive_root = self.bdist_dir
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184 egg_info = os.path.join(archive_root, 'EGG-INFO')
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185 self.mkpath(egg_info)
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186 if self.distribution.scripts:
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187 script_dir = os.path.join(egg_info, 'scripts')
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188 log.info("installing scripts to %s" % script_dir)
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189 self.call_command('install_scripts', install_dir=script_dir,
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190 no_ep=1)
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191
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192 self.copy_metadata_to(egg_info)
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193 native_libs = os.path.join(egg_info, "native_libs.txt")
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194 if all_outputs:
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195 log.info("writing %s" % native_libs)
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196 if not self.dry_run:
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197 ensure_directory(native_libs)
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198 libs_file = open(native_libs, 'wt')
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199 libs_file.write('\n'.join(all_outputs))
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200 libs_file.write('\n')
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201 libs_file.close()
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202 elif os.path.isfile(native_libs):
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203 log.info("removing %s" % native_libs)
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204 if not self.dry_run:
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205 os.unlink(native_libs)
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206
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207 write_safety_flag(
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208 os.path.join(archive_root, 'EGG-INFO'), self.zip_safe()
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209 )
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210
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211 if os.path.exists(os.path.join(self.egg_info, 'depends.txt')):
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212 log.warn(
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213 "WARNING: 'depends.txt' will not be used by setuptools 0.6!\n"
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214 "Use the install_requires/extras_require setup() args instead."
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215 )
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216
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217 if self.exclude_source_files:
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218 self.zap_pyfiles()
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219
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220 # Make the archive
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221 make_zipfile(self.egg_output, archive_root, verbose=self.verbose,
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222 dry_run=self.dry_run, mode=self.gen_header())
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223 if not self.keep_temp:
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224 remove_tree(self.bdist_dir, dry_run=self.dry_run)
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225
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226 # Add to 'Distribution.dist_files' so that the "upload" command works
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227 getattr(self.distribution, 'dist_files', []).append(
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228 ('bdist_egg', get_python_version(), self.egg_output))
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229
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230 def zap_pyfiles(self):
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231 log.info("Removing .py files from temporary directory")
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232 for base, dirs, files in walk_egg(self.bdist_dir):
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233 for name in files:
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234 if name.endswith('.py'):
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235 path = os.path.join(base, name)
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236 log.debug("Deleting %s", path)
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237 os.unlink(path)
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238
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239 def zip_safe(self):
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240 safe = getattr(self.distribution, 'zip_safe', None)
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241 if safe is not None:
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242 return safe
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243 log.warn("zip_safe flag not set; analyzing archive contents...")
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244 return analyze_egg(self.bdist_dir, self.stubs)
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245
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246 def gen_header(self):
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247 epm = EntryPoint.parse_map(self.distribution.entry_points or '')
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248 ep = epm.get('setuptools.installation', {}).get('eggsecutable')
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249 if ep is None:
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250 return 'w' # not an eggsecutable, do it the usual way.
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251
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252 if not ep.attrs or ep.extras:
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253 raise DistutilsSetupError(
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254 "eggsecutable entry point (%r) cannot have 'extras' "
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255 "or refer to a module" % (ep,)
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256 )
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257
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258 pyver = sys.version[:3]
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259 pkg = ep.module_name
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260 full = '.'.join(ep.attrs)
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261 base = ep.attrs[0]
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262 basename = os.path.basename(self.egg_output)
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263
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264 header = (
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265 "#!/bin/sh\n"
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266 'if [ `basename $0` = "%(basename)s" ]\n'
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267 'then exec python%(pyver)s -c "'
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268 "import sys, os; sys.path.insert(0, os.path.abspath('$0')); "
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269 "from %(pkg)s import %(base)s; sys.exit(%(full)s())"
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270 '" "$@"\n'
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271 'else\n'
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272 ' echo $0 is not the correct name for this egg file.\n'
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273 ' echo Please rename it back to %(basename)s and try again.\n'
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274 ' exec false\n'
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275 'fi\n'
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276 ) % locals()
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277
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278 if not self.dry_run:
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279 mkpath(os.path.dirname(self.egg_output), dry_run=self.dry_run)
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280 f = open(self.egg_output, 'w')
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281 f.write(header)
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282 f.close()
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283 return 'a'
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284
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285 def copy_metadata_to(self, target_dir):
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286 "Copy metadata (egg info) to the target_dir"
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287 # normalize the path (so that a forward-slash in egg_info will
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288 # match using startswith below)
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289 norm_egg_info = os.path.normpath(self.egg_info)
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290 prefix = os.path.join(norm_egg_info, '')
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291 for path in self.ei_cmd.filelist.files:
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292 if path.startswith(prefix):
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293 target = os.path.join(target_dir, path[len(prefix):])
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294 ensure_directory(target)
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295 self.copy_file(path, target)
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296
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297 def get_ext_outputs(self):
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298 """Get a list of relative paths to C extensions in the output distro"""
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299
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300 all_outputs = []
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301 ext_outputs = []
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302
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303 paths = {self.bdist_dir: ''}
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304 for base, dirs, files in os.walk(self.bdist_dir):
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305 for filename in files:
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306 if os.path.splitext(filename)[1].lower() in NATIVE_EXTENSIONS:
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307 all_outputs.append(paths[base] + filename)
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308 for filename in dirs:
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309 paths[os.path.join(base, filename)] = (paths[base] +
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310 filename + '/')
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311
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312 if self.distribution.has_ext_modules():
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313 build_cmd = self.get_finalized_command('build_ext')
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314 for ext in build_cmd.extensions:
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315 if isinstance(ext, Library):
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316 continue
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317 fullname = build_cmd.get_ext_fullname(ext.name)
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318 filename = build_cmd.get_ext_filename(fullname)
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319 if not os.path.basename(filename).startswith('dl-'):
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320 if os.path.exists(os.path.join(self.bdist_dir, filename)):
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321 ext_outputs.append(filename)
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322
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323 return all_outputs, ext_outputs
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324
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325
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326 NATIVE_EXTENSIONS = dict.fromkeys('.dll .so .dylib .pyd'.split())
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327
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328
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329 def walk_egg(egg_dir):
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330 """Walk an unpacked egg's contents, skipping the metadata directory"""
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331 walker = os.walk(egg_dir)
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332 base, dirs, files = next(walker)
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333 if 'EGG-INFO' in dirs:
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334 dirs.remove('EGG-INFO')
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335 yield base, dirs, files
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336 for bdf in walker:
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337 yield bdf
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338
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339
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340 def analyze_egg(egg_dir, stubs):
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341 # check for existing flag in EGG-INFO
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342 for flag, fn in safety_flags.items():
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343 if os.path.exists(os.path.join(egg_dir, 'EGG-INFO', fn)):
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344 return flag
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345 if not can_scan():
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346 return False
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347 safe = True
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348 for base, dirs, files in walk_egg(egg_dir):
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349 for name in files:
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350 if name.endswith('.py') or name.endswith('.pyw'):
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351 continue
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352 elif name.endswith('.pyc') or name.endswith('.pyo'):
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353 # always scan, even if we already know we're not safe
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354 safe = scan_module(egg_dir, base, name, stubs) and safe
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355 return safe
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356
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357
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358 def write_safety_flag(egg_dir, safe):
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359 # Write or remove zip safety flag file(s)
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360 for flag, fn in safety_flags.items():
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361 fn = os.path.join(egg_dir, fn)
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362 if os.path.exists(fn):
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363 if safe is None or bool(safe) != flag:
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364 os.unlink(fn)
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365 elif safe is not None and bool(safe) == flag:
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366 f = open(fn, 'wt')
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367 f.write('\n')
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368 f.close()
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369
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370
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371 safety_flags = {
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372 True: 'zip-safe',
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373 False: 'not-zip-safe',
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374 }
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375
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376
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377 def scan_module(egg_dir, base, name, stubs):
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378 """Check whether module possibly uses unsafe-for-zipfile stuff"""
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379
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380 filename = os.path.join(base, name)
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381 if filename[:-1] in stubs:
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382 return True # Extension module
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383 pkg = base[len(egg_dir) + 1:].replace(os.sep, '.')
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384 module = pkg + (pkg and '.' or '') + os.path.splitext(name)[0]
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385 if sys.version_info < (3, 3):
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386 skip = 8 # skip magic & date
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387 else:
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388 skip = 12 # skip magic & date & file size
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389 f = open(filename, 'rb')
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390 f.read(skip)
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391 code = marshal.load(f)
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392 f.close()
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393 safe = True
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394 symbols = dict.fromkeys(iter_symbols(code))
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395 for bad in ['__file__', '__path__']:
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396 if bad in symbols:
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397 log.warn("%s: module references %s", module, bad)
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398 safe = False
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399 if 'inspect' in symbols:
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400 for bad in [
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401 'getsource', 'getabsfile', 'getsourcefile', 'getfile'
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402 'getsourcelines', 'findsource', 'getcomments', 'getframeinfo',
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403 'getinnerframes', 'getouterframes', 'stack', 'trace'
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404 ]:
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405 if bad in symbols:
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406 log.warn("%s: module MAY be using inspect.%s", module, bad)
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407 safe = False
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408 return safe
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409
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410
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411 def iter_symbols(code):
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412 """Yield names and strings used by `code` and its nested code objects"""
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413 for name in code.co_names:
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414 yield name
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415 for const in code.co_consts:
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416 if isinstance(const, basestring):
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417 yield const
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418 elif isinstance(const, CodeType):
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419 for name in iter_symbols(const):
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420 yield name
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421
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422
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423 def can_scan():
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424 if not sys.platform.startswith('java') and sys.platform != 'cli':
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425 # CPython, PyPy, etc.
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426 return True
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427 log.warn("Unable to analyze compiled code on this platform.")
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428 log.warn("Please ask the author to include a 'zip_safe'"
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429 " setting (either True or False) in the package's setup.py")
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430
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431 # Attribute names of options for commands that might need to be convinced to
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432 # install to the egg build directory
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433
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434 INSTALL_DIRECTORY_ATTRS = [
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435 'install_lib', 'install_dir', 'install_data', 'install_base'
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436 ]
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437
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438
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439 def make_zipfile(zip_filename, base_dir, verbose=0, dry_run=0, compress=True,
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440 mode='w'):
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441 """Create a zip file from all the files under 'base_dir'. The output
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442 zip file will be named 'base_dir' + ".zip". Uses either the "zipfile"
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443 Python module (if available) or the InfoZIP "zip" utility (if installed
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444 and found on the default search path). If neither tool is available,
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445 raises DistutilsExecError. Returns the name of the output zip file.
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446 """
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447 import zipfile
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448
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449 mkpath(os.path.dirname(zip_filename), dry_run=dry_run)
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450 log.info("creating '%s' and adding '%s' to it", zip_filename, base_dir)
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451
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452 def visit(z, dirname, names):
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453 for name in names:
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454 path = os.path.normpath(os.path.join(dirname, name))
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455 if os.path.isfile(path):
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456 p = path[len(base_dir) + 1:]
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457 if not dry_run:
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458 z.write(path, p)
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459 log.debug("adding '%s'" % p)
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460
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461 compression = zipfile.ZIP_DEFLATED if compress else zipfile.ZIP_STORED
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462 if not dry_run:
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463 z = zipfile.ZipFile(zip_filename, mode, compression=compression)
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464 for dirname, dirs, files in os.walk(base_dir):
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465 visit(z, dirname, files)
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466 z.close()
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467 else:
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468 for dirname, dirs, files in os.walk(base_dir):
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469 visit(None, dirname, files)
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470 return zip_filename