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annotate lib/python3.8/site-packages/wheel/cli/convert.py @ 0:9e54283cc701 draft

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"planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
author guerler
date Mon, 27 Jul 2020 03:47:31 -0400
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1 import os.path
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2 import re
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3 import shutil
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4 import sys
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5 import tempfile
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6 import zipfile
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7 from distutils import dist
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8 from glob import iglob
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9
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10 from ..bdist_wheel import bdist_wheel
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11 from ..wheelfile import WheelFile
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12 from . import WheelError, require_pkgresources
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13
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14 egg_info_re = re.compile(r'''
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15 (?P<name>.+?)-(?P<ver>.+?)
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16 (-(?P<pyver>py\d\.\d+)
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17 (-(?P<arch>.+?))?
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18 )?.egg$''', re.VERBOSE)
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19
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20
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21 class _bdist_wheel_tag(bdist_wheel):
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22 # allow the client to override the default generated wheel tag
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23 # The default bdist_wheel implementation uses python and abi tags
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24 # of the running python process. This is not suitable for
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25 # generating/repackaging prebuild binaries.
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26
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27 full_tag_supplied = False
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28 full_tag = None # None or a (pytag, soabitag, plattag) triple
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29
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30 def get_tag(self):
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31 if self.full_tag_supplied and self.full_tag is not None:
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32 return self.full_tag
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33 else:
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34 return bdist_wheel.get_tag(self)
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35
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36
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37 def egg2wheel(egg_path, dest_dir):
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38 filename = os.path.basename(egg_path)
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39 match = egg_info_re.match(filename)
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40 if not match:
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41 raise WheelError('Invalid egg file name: {}'.format(filename))
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42
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43 egg_info = match.groupdict()
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44 dir = tempfile.mkdtemp(suffix="_e2w")
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45 if os.path.isfile(egg_path):
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46 # assume we have a bdist_egg otherwise
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47 with zipfile.ZipFile(egg_path) as egg:
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48 egg.extractall(dir)
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49 else:
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50 # support buildout-style installed eggs directories
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51 for pth in os.listdir(egg_path):
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52 src = os.path.join(egg_path, pth)
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53 if os.path.isfile(src):
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54 shutil.copy2(src, dir)
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55 else:
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56 shutil.copytree(src, os.path.join(dir, pth))
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57
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58 pyver = egg_info['pyver']
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59 if pyver:
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60 pyver = egg_info['pyver'] = pyver.replace('.', '')
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61
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62 arch = (egg_info['arch'] or 'any').replace('.', '_').replace('-', '_')
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63
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64 # assume all binary eggs are for CPython
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65 abi = 'cp' + pyver[2:] if arch != 'any' else 'none'
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66
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67 root_is_purelib = egg_info['arch'] is None
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68 if root_is_purelib:
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69 bw = bdist_wheel(dist.Distribution())
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70 else:
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71 bw = _bdist_wheel_tag(dist.Distribution())
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72
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73 bw.root_is_pure = root_is_purelib
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74 bw.python_tag = pyver
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75 bw.plat_name_supplied = True
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76 bw.plat_name = egg_info['arch'] or 'any'
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77 if not root_is_purelib:
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78 bw.full_tag_supplied = True
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79 bw.full_tag = (pyver, abi, arch)
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80
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81 dist_info_dir = os.path.join(dir, '{name}-{ver}.dist-info'.format(**egg_info))
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82 bw.egg2dist(os.path.join(dir, 'EGG-INFO'), dist_info_dir)
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83 bw.write_wheelfile(dist_info_dir, generator='egg2wheel')
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84 wheel_name = '{name}-{ver}-{pyver}-{}-{}.whl'.format(abi, arch, **egg_info)
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85 with WheelFile(os.path.join(dest_dir, wheel_name), 'w') as wf:
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86 wf.write_files(dir)
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87
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88 shutil.rmtree(dir)
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89
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90
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91 def parse_wininst_info(wininfo_name, egginfo_name):
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92 """Extract metadata from filenames.
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93
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94 Extracts the 4 metadataitems needed (name, version, pyversion, arch) from
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95 the installer filename and the name of the egg-info directory embedded in
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96 the zipfile (if any).
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97
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98 The egginfo filename has the format::
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99
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100 name-ver(-pyver)(-arch).egg-info
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101
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102 The installer filename has the format::
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103
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104 name-ver.arch(-pyver).exe
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105
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106 Some things to note:
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107
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108 1. The installer filename is not definitive. An installer can be renamed
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109 and work perfectly well as an installer. So more reliable data should
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110 be used whenever possible.
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111 2. The egg-info data should be preferred for the name and version, because
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112 these come straight from the distutils metadata, and are mandatory.
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113 3. The pyver from the egg-info data should be ignored, as it is
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114 constructed from the version of Python used to build the installer,
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115 which is irrelevant - the installer filename is correct here (even to
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116 the point that when it's not there, any version is implied).
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117 4. The architecture must be taken from the installer filename, as it is
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118 not included in the egg-info data.
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119 5. Architecture-neutral installers still have an architecture because the
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120 installer format itself (being executable) is architecture-specific. We
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121 should therefore ignore the architecture if the content is pure-python.
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122 """
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123
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124 egginfo = None
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125 if egginfo_name:
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126 egginfo = egg_info_re.search(egginfo_name)
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127 if not egginfo:
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128 raise ValueError("Egg info filename %s is not valid" % (egginfo_name,))
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129
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130 # Parse the wininst filename
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131 # 1. Distribution name (up to the first '-')
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132 w_name, sep, rest = wininfo_name.partition('-')
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133 if not sep:
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134 raise ValueError("Installer filename %s is not valid" % (wininfo_name,))
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135
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136 # Strip '.exe'
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137 rest = rest[:-4]
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138 # 2. Python version (from the last '-', must start with 'py')
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139 rest2, sep, w_pyver = rest.rpartition('-')
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140 if sep and w_pyver.startswith('py'):
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141 rest = rest2
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142 w_pyver = w_pyver.replace('.', '')
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143 else:
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144 # Not version specific - use py2.py3. While it is possible that
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145 # pure-Python code is not compatible with both Python 2 and 3, there
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146 # is no way of knowing from the wininst format, so we assume the best
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147 # here (the user can always manually rename the wheel to be more
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148 # restrictive if needed).
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149 w_pyver = 'py2.py3'
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150 # 3. Version and architecture
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151 w_ver, sep, w_arch = rest.rpartition('.')
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152 if not sep:
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153 raise ValueError("Installer filename %s is not valid" % (wininfo_name,))
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154
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155 if egginfo:
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156 w_name = egginfo.group('name')
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157 w_ver = egginfo.group('ver')
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158
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159 return {'name': w_name, 'ver': w_ver, 'arch': w_arch, 'pyver': w_pyver}
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160
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161
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162 def wininst2wheel(path, dest_dir):
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163 with zipfile.ZipFile(path) as bdw:
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164 # Search for egg-info in the archive
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165 egginfo_name = None
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166 for filename in bdw.namelist():
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167 if '.egg-info' in filename:
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168 egginfo_name = filename
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169 break
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170
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171 info = parse_wininst_info(os.path.basename(path), egginfo_name)
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172
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173 root_is_purelib = True
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174 for zipinfo in bdw.infolist():
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175 if zipinfo.filename.startswith('PLATLIB'):
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176 root_is_purelib = False
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177 break
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178 if root_is_purelib:
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179 paths = {'purelib': ''}
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180 else:
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181 paths = {'platlib': ''}
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182
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183 dist_info = "%(name)s-%(ver)s" % info
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184 datadir = "%s.data/" % dist_info
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185
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186 # rewrite paths to trick ZipFile into extracting an egg
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187 # XXX grab wininst .ini - between .exe, padding, and first zip file.
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188 members = []
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189 egginfo_name = ''
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190 for zipinfo in bdw.infolist():
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191 key, basename = zipinfo.filename.split('/', 1)
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192 key = key.lower()
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193 basepath = paths.get(key, None)
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194 if basepath is None:
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195 basepath = datadir + key.lower() + '/'
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196 oldname = zipinfo.filename
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197 newname = basepath + basename
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198 zipinfo.filename = newname
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199 del bdw.NameToInfo[oldname]
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200 bdw.NameToInfo[newname] = zipinfo
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201 # Collect member names, but omit '' (from an entry like "PLATLIB/"
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202 if newname:
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203 members.append(newname)
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204 # Remember egg-info name for the egg2dist call below
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205 if not egginfo_name:
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206 if newname.endswith('.egg-info'):
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207 egginfo_name = newname
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208 elif '.egg-info/' in newname:
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209 egginfo_name, sep, _ = newname.rpartition('/')
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210 dir = tempfile.mkdtemp(suffix="_b2w")
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211 bdw.extractall(dir, members)
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212
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213 # egg2wheel
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214 abi = 'none'
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215 pyver = info['pyver']
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216 arch = (info['arch'] or 'any').replace('.', '_').replace('-', '_')
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217 # Wininst installers always have arch even if they are not
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218 # architecture-specific (because the format itself is).
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219 # So, assume the content is architecture-neutral if root is purelib.
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220 if root_is_purelib:
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221 arch = 'any'
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222 # If the installer is architecture-specific, it's almost certainly also
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223 # CPython-specific.
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224 if arch != 'any':
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225 pyver = pyver.replace('py', 'cp')
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226 wheel_name = '-'.join((dist_info, pyver, abi, arch))
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227 if root_is_purelib:
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228 bw = bdist_wheel(dist.Distribution())
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229 else:
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230 bw = _bdist_wheel_tag(dist.Distribution())
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231
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232 bw.root_is_pure = root_is_purelib
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233 bw.python_tag = pyver
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234 bw.plat_name_supplied = True
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235 bw.plat_name = info['arch'] or 'any'
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236
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237 if not root_is_purelib:
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238 bw.full_tag_supplied = True
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239 bw.full_tag = (pyver, abi, arch)
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240
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241 dist_info_dir = os.path.join(dir, '%s.dist-info' % dist_info)
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242 bw.egg2dist(os.path.join(dir, egginfo_name), dist_info_dir)
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243 bw.write_wheelfile(dist_info_dir, generator='wininst2wheel')
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244
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245 wheel_path = os.path.join(dest_dir, wheel_name)
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246 with WheelFile(wheel_path, 'w') as wf:
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247 wf.write_files(dir)
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248
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249 shutil.rmtree(dir)
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250
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251
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252 def convert(files, dest_dir, verbose):
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253 # Only support wheel convert if pkg_resources is present
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254 require_pkgresources('wheel convert')
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255
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256 for pat in files:
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257 for installer in iglob(pat):
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258 if os.path.splitext(installer)[1] == '.egg':
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259 conv = egg2wheel
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260 else:
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261 conv = wininst2wheel
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262
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263 if verbose:
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264 print("{}... ".format(installer))
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265 sys.stdout.flush()
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266
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267 conv(installer, dest_dir)
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268 if verbose:
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269 print("OK")