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annotate planemo/lib/python3.7/site-packages/scandir.py @ 1:56ad4e20f292 draft

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"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
author guerler
date Fri, 31 Jul 2020 00:32:28 -0400
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1
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1 """scandir, a better directory iterator and faster os.walk(), now in the Python 3.5 stdlib
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2
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3 scandir() is a generator version of os.listdir() that returns an
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4 iterator over files in a directory, and also exposes the extra
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5 information most OSes provide while iterating files in a directory
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6 (such as type and stat information).
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7
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8 This module also includes a version of os.walk() that uses scandir()
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9 to speed it up significantly.
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10
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11 See README.md or https://github.com/benhoyt/scandir for rationale and
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12 docs, or read PEP 471 (https://www.python.org/dev/peps/pep-0471/) for
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13 more details on its inclusion into Python 3.5
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14
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15 scandir is released under the new BSD 3-clause license. See
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16 LICENSE.txt for the full license text.
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17 """
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18
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19 from __future__ import division
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20
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21 from errno import ENOENT
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22 from os import listdir, lstat, stat, strerror
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23 from os.path import join, islink
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24 from stat import S_IFDIR, S_IFLNK, S_IFREG
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25 import collections
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26 import sys
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27
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28 try:
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29 import _scandir
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30 except ImportError:
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31 _scandir = None
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32
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33 try:
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34 import ctypes
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35 except ImportError:
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36 ctypes = None
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37
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38 if _scandir is None and ctypes is None:
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39 import warnings
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40 warnings.warn("scandir can't find the compiled _scandir C module "
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41 "or ctypes, using slow generic fallback")
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42
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43 __version__ = '1.10.0'
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44 __all__ = ['scandir', 'walk']
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45
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46 # Windows FILE_ATTRIBUTE constants for interpreting the
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47 # FIND_DATA.dwFileAttributes member
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48 FILE_ATTRIBUTE_ARCHIVE = 32
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49 FILE_ATTRIBUTE_COMPRESSED = 2048
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50 FILE_ATTRIBUTE_DEVICE = 64
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51 FILE_ATTRIBUTE_DIRECTORY = 16
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52 FILE_ATTRIBUTE_ENCRYPTED = 16384
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53 FILE_ATTRIBUTE_HIDDEN = 2
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54 FILE_ATTRIBUTE_INTEGRITY_STREAM = 32768
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55 FILE_ATTRIBUTE_NORMAL = 128
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56 FILE_ATTRIBUTE_NOT_CONTENT_INDEXED = 8192
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57 FILE_ATTRIBUTE_NO_SCRUB_DATA = 131072
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58 FILE_ATTRIBUTE_OFFLINE = 4096
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59 FILE_ATTRIBUTE_READONLY = 1
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60 FILE_ATTRIBUTE_REPARSE_POINT = 1024
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61 FILE_ATTRIBUTE_SPARSE_FILE = 512
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62 FILE_ATTRIBUTE_SYSTEM = 4
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63 FILE_ATTRIBUTE_TEMPORARY = 256
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64 FILE_ATTRIBUTE_VIRTUAL = 65536
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65
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66 IS_PY3 = sys.version_info >= (3, 0)
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67
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68 if IS_PY3:
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69 unicode = str # Because Python <= 3.2 doesn't have u'unicode' syntax
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70
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71
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72 class GenericDirEntry(object):
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73 __slots__ = ('name', '_stat', '_lstat', '_scandir_path', '_path')
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74
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75 def __init__(self, scandir_path, name):
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76 self._scandir_path = scandir_path
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77 self.name = name
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78 self._stat = None
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79 self._lstat = None
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80 self._path = None
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81
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82 @property
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83 def path(self):
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84 if self._path is None:
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85 self._path = join(self._scandir_path, self.name)
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86 return self._path
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87
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88 def stat(self, follow_symlinks=True):
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89 if follow_symlinks:
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90 if self._stat is None:
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91 self._stat = stat(self.path)
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92 return self._stat
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93 else:
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94 if self._lstat is None:
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95 self._lstat = lstat(self.path)
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96 return self._lstat
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97
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98 # The code duplication below is intentional: this is for slightly
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99 # better performance on systems that fall back to GenericDirEntry.
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100 # It avoids an additional attribute lookup and method call, which
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101 # are relatively slow on CPython.
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102 def is_dir(self, follow_symlinks=True):
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103 try:
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104 st = self.stat(follow_symlinks=follow_symlinks)
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105 except OSError as e:
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106 if e.errno != ENOENT:
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107 raise
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108 return False # Path doesn't exist or is a broken symlink
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109 return st.st_mode & 0o170000 == S_IFDIR
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110
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111 def is_file(self, follow_symlinks=True):
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112 try:
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113 st = self.stat(follow_symlinks=follow_symlinks)
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114 except OSError as e:
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115 if e.errno != ENOENT:
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116 raise
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117 return False # Path doesn't exist or is a broken symlink
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118 return st.st_mode & 0o170000 == S_IFREG
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119
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120 def is_symlink(self):
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121 try:
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122 st = self.stat(follow_symlinks=False)
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123 except OSError as e:
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124 if e.errno != ENOENT:
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125 raise
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126 return False # Path doesn't exist or is a broken symlink
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127 return st.st_mode & 0o170000 == S_IFLNK
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128
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129 def inode(self):
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130 st = self.stat(follow_symlinks=False)
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131 return st.st_ino
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132
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133 def __str__(self):
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134 return '<{0}: {1!r}>'.format(self.__class__.__name__, self.name)
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135
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136 __repr__ = __str__
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137
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138
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139 def _scandir_generic(path=unicode('.')):
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140 """Like os.listdir(), but yield DirEntry objects instead of returning
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141 a list of names.
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142 """
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143 for name in listdir(path):
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144 yield GenericDirEntry(path, name)
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145
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146
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147 if IS_PY3 and sys.platform == 'win32':
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148 def scandir_generic(path=unicode('.')):
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149 if isinstance(path, bytes):
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150 raise TypeError("os.scandir() doesn't support bytes path on Windows, use Unicode instead")
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151 return _scandir_generic(path)
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152 scandir_generic.__doc__ = _scandir_generic.__doc__
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153 else:
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154 scandir_generic = _scandir_generic
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155
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156
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157 scandir_c = None
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158 scandir_python = None
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159
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160
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161 if sys.platform == 'win32':
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162 if ctypes is not None:
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163 from ctypes import wintypes
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164
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165 # Various constants from windows.h
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166 INVALID_HANDLE_VALUE = ctypes.c_void_p(-1).value
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167 ERROR_FILE_NOT_FOUND = 2
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168 ERROR_NO_MORE_FILES = 18
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169 IO_REPARSE_TAG_SYMLINK = 0xA000000C
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170
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171 # Numer of seconds between 1601-01-01 and 1970-01-01
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172 SECONDS_BETWEEN_EPOCHS = 11644473600
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173
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174 kernel32 = ctypes.windll.kernel32
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175
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176 # ctypes wrappers for (wide string versions of) FindFirstFile,
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177 # FindNextFile, and FindClose
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178 FindFirstFile = kernel32.FindFirstFileW
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179 FindFirstFile.argtypes = [
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180 wintypes.LPCWSTR,
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181 ctypes.POINTER(wintypes.WIN32_FIND_DATAW),
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182 ]
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183 FindFirstFile.restype = wintypes.HANDLE
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184
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185 FindNextFile = kernel32.FindNextFileW
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186 FindNextFile.argtypes = [
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187 wintypes.HANDLE,
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188 ctypes.POINTER(wintypes.WIN32_FIND_DATAW),
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189 ]
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190 FindNextFile.restype = wintypes.BOOL
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191
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192 FindClose = kernel32.FindClose
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193 FindClose.argtypes = [wintypes.HANDLE]
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194 FindClose.restype = wintypes.BOOL
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195
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196 Win32StatResult = collections.namedtuple('Win32StatResult', [
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197 'st_mode',
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198 'st_ino',
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199 'st_dev',
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200 'st_nlink',
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201 'st_uid',
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202 'st_gid',
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203 'st_size',
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204 'st_atime',
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205 'st_mtime',
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206 'st_ctime',
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207 'st_atime_ns',
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208 'st_mtime_ns',
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209 'st_ctime_ns',
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210 'st_file_attributes',
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211 ])
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212
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213 def filetime_to_time(filetime):
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214 """Convert Win32 FILETIME to time since Unix epoch in seconds."""
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215 total = filetime.dwHighDateTime << 32 | filetime.dwLowDateTime
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216 return total / 10000000 - SECONDS_BETWEEN_EPOCHS
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217
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218 def find_data_to_stat(data):
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219 """Convert Win32 FIND_DATA struct to stat_result."""
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220 # First convert Win32 dwFileAttributes to st_mode
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221 attributes = data.dwFileAttributes
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222 st_mode = 0
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223 if attributes & FILE_ATTRIBUTE_DIRECTORY:
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224 st_mode |= S_IFDIR | 0o111
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225 else:
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226 st_mode |= S_IFREG
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227 if attributes & FILE_ATTRIBUTE_READONLY:
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228 st_mode |= 0o444
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229 else:
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230 st_mode |= 0o666
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231 if (attributes & FILE_ATTRIBUTE_REPARSE_POINT and
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232 data.dwReserved0 == IO_REPARSE_TAG_SYMLINK):
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233 st_mode ^= st_mode & 0o170000
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234 st_mode |= S_IFLNK
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235
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236 st_size = data.nFileSizeHigh << 32 | data.nFileSizeLow
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237 st_atime = filetime_to_time(data.ftLastAccessTime)
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238 st_mtime = filetime_to_time(data.ftLastWriteTime)
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239 st_ctime = filetime_to_time(data.ftCreationTime)
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240
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241 # Some fields set to zero per CPython's posixmodule.c: st_ino, st_dev,
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242 # st_nlink, st_uid, st_gid
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243 return Win32StatResult(st_mode, 0, 0, 0, 0, 0, st_size,
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244 st_atime, st_mtime, st_ctime,
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245 int(st_atime * 1000000000),
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246 int(st_mtime * 1000000000),
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247 int(st_ctime * 1000000000),
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248 attributes)
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249
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250 class Win32DirEntryPython(object):
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251 __slots__ = ('name', '_stat', '_lstat', '_find_data', '_scandir_path', '_path', '_inode')
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252
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253 def __init__(self, scandir_path, name, find_data):
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254 self._scandir_path = scandir_path
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255 self.name = name
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parents:
diff changeset
256 self._stat = None
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parents:
diff changeset
257 self._lstat = None
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parents:
diff changeset
258 self._find_data = find_data
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parents:
diff changeset
259 self._path = None
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
260 self._inode = None
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diff changeset
261
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diff changeset
262 @property
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diff changeset
263 def path(self):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
264 if self._path is None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
265 self._path = join(self._scandir_path, self.name)
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diff changeset
266 return self._path
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diff changeset
267
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diff changeset
268 def stat(self, follow_symlinks=True):
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diff changeset
269 if follow_symlinks:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
270 if self._stat is None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
271 if self.is_symlink():
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
272 # It's a symlink, call link-following stat()
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273 self._stat = stat(self.path)
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diff changeset
274 else:
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275 # Not a symlink, stat is same as lstat value
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parents:
diff changeset
276 if self._lstat is None:
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diff changeset
277 self._lstat = find_data_to_stat(self._find_data)
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diff changeset
278 self._stat = self._lstat
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diff changeset
279 return self._stat
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diff changeset
280 else:
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281 if self._lstat is None:
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282 # Lazily convert to stat object, because it's slow
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283 # in Python, and often we only need is_dir() etc
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284 self._lstat = find_data_to_stat(self._find_data)
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285 return self._lstat
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286
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287 def is_dir(self, follow_symlinks=True):
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288 is_symlink = self.is_symlink()
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289 if follow_symlinks and is_symlink:
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290 try:
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291 return self.stat().st_mode & 0o170000 == S_IFDIR
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292 except OSError as e:
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293 if e.errno != ENOENT:
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294 raise
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295 return False
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diff changeset
296 elif is_symlink:
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diff changeset
297 return False
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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298 else:
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299 return (self._find_data.dwFileAttributes &
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300 FILE_ATTRIBUTE_DIRECTORY != 0)
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301
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302 def is_file(self, follow_symlinks=True):
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303 is_symlink = self.is_symlink()
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304 if follow_symlinks and is_symlink:
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diff changeset
305 try:
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306 return self.stat().st_mode & 0o170000 == S_IFREG
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parents:
diff changeset
307 except OSError as e:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
308 if e.errno != ENOENT:
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diff changeset
309 raise
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
310 return False
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
311 elif is_symlink:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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312 return False
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
313 else:
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diff changeset
314 return (self._find_data.dwFileAttributes &
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315 FILE_ATTRIBUTE_DIRECTORY == 0)
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diff changeset
316
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diff changeset
317 def is_symlink(self):
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diff changeset
318 return (self._find_data.dwFileAttributes &
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diff changeset
319 FILE_ATTRIBUTE_REPARSE_POINT != 0 and
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
320 self._find_data.dwReserved0 == IO_REPARSE_TAG_SYMLINK)
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diff changeset
321
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diff changeset
322 def inode(self):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
323 if self._inode is None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
324 self._inode = lstat(self.path).st_ino
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diff changeset
325 return self._inode
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diff changeset
326
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diff changeset
327 def __str__(self):
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328 return '<{0}: {1!r}>'.format(self.__class__.__name__, self.name)
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diff changeset
329
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diff changeset
330 __repr__ = __str__
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diff changeset
331
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diff changeset
332 def win_error(error, filename):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
333 exc = WindowsError(error, ctypes.FormatError(error))
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diff changeset
334 exc.filename = filename
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diff changeset
335 return exc
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
336
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diff changeset
337 def _scandir_python(path=unicode('.')):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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338 """Like os.listdir(), but yield DirEntry objects instead of returning
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
339 a list of names.
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diff changeset
340 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
341 # Call FindFirstFile and handle errors
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
342 if isinstance(path, bytes):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
343 is_bytes = True
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
344 filename = join(path.decode('mbcs', 'strict'), '*.*')
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
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diff changeset
345 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
346 is_bytes = False
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
347 filename = join(path, '*.*')
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
348 data = wintypes.WIN32_FIND_DATAW()
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diff changeset
349 data_p = ctypes.byref(data)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
350 handle = FindFirstFile(filename, data_p)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
351 if handle == INVALID_HANDLE_VALUE:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
352 error = ctypes.GetLastError()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
353 if error == ERROR_FILE_NOT_FOUND:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
354 # No files, don't yield anything
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guerler
parents:
diff changeset
355 return
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
356 raise win_error(error, path)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
357
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
358 # Call FindNextFile in a loop, stopping when no more files
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
359 try:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
360 while True:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
361 # Skip '.' and '..' (current and parent directory), but
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
362 # otherwise yield (filename, stat_result) tuple
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
363 name = data.cFileName
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
364 if name not in ('.', '..'):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
365 if is_bytes:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
366 name = name.encode('mbcs', 'replace')
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
367 yield Win32DirEntryPython(path, name, data)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
368
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
369 data = wintypes.WIN32_FIND_DATAW()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
370 data_p = ctypes.byref(data)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
371 success = FindNextFile(handle, data_p)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
372 if not success:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
373 error = ctypes.GetLastError()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
374 if error == ERROR_NO_MORE_FILES:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
375 break
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
376 raise win_error(error, path)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
377 finally:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
378 if not FindClose(handle):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
379 raise win_error(ctypes.GetLastError(), path)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
380
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
381 if IS_PY3:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
382 def scandir_python(path=unicode('.')):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
383 if isinstance(path, bytes):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
384 raise TypeError("os.scandir() doesn't support bytes path on Windows, use Unicode instead")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
385 return _scandir_python(path)
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diff changeset
386 scandir_python.__doc__ = _scandir_python.__doc__
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diff changeset
387 else:
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diff changeset
388 scandir_python = _scandir_python
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389
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diff changeset
390 if _scandir is not None:
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diff changeset
391 scandir_c = _scandir.scandir
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diff changeset
392 DirEntry_c = _scandir.DirEntry
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diff changeset
393
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diff changeset
394 if _scandir is not None:
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diff changeset
395 scandir = scandir_c
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diff changeset
396 DirEntry = DirEntry_c
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diff changeset
397 elif ctypes is not None:
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398 scandir = scandir_python
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diff changeset
399 DirEntry = Win32DirEntryPython
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diff changeset
400 else:
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diff changeset
401 scandir = scandir_generic
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diff changeset
402 DirEntry = GenericDirEntry
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diff changeset
403
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diff changeset
404
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parents:
diff changeset
405 # Linux, OS X, and BSD implementation
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diff changeset
406 elif sys.platform.startswith(('linux', 'darwin', 'sunos5')) or 'bsd' in sys.platform:
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407 have_dirent_d_type = (sys.platform != 'sunos5')
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408
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409 if ctypes is not None and have_dirent_d_type:
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410 import ctypes.util
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411
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412 DIR_p = ctypes.c_void_p
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413
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414 # Rather annoying how the dirent struct is slightly different on each
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diff changeset
415 # platform. The only fields we care about are d_name and d_type.
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416 class Dirent(ctypes.Structure):
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417 if sys.platform.startswith('linux'):
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418 _fields_ = (
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419 ('d_ino', ctypes.c_ulong),
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420 ('d_off', ctypes.c_long),
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421 ('d_reclen', ctypes.c_ushort),
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parents:
diff changeset
422 ('d_type', ctypes.c_byte),
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parents:
diff changeset
423 ('d_name', ctypes.c_char * 256),
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parents:
diff changeset
424 )
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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425 elif 'openbsd' in sys.platform:
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parents:
diff changeset
426 _fields_ = (
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parents:
diff changeset
427 ('d_ino', ctypes.c_uint64),
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parents:
diff changeset
428 ('d_off', ctypes.c_uint64),
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parents:
diff changeset
429 ('d_reclen', ctypes.c_uint16),
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
430 ('d_type', ctypes.c_uint8),
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parents:
diff changeset
431 ('d_namlen', ctypes.c_uint8),
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parents:
diff changeset
432 ('__d_padding', ctypes.c_uint8 * 4),
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parents:
diff changeset
433 ('d_name', ctypes.c_char * 256),
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parents:
diff changeset
434 )
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diff changeset
435 else:
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parents:
diff changeset
436 _fields_ = (
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parents:
diff changeset
437 ('d_ino', ctypes.c_uint32), # must be uint32, not ulong
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guerler
parents:
diff changeset
438 ('d_reclen', ctypes.c_ushort),
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guerler
parents:
diff changeset
439 ('d_type', ctypes.c_byte),
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
440 ('d_namlen', ctypes.c_byte),
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parents:
diff changeset
441 ('d_name', ctypes.c_char * 256),
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parents:
diff changeset
442 )
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parents:
diff changeset
443
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diff changeset
444 DT_UNKNOWN = 0
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parents:
diff changeset
445 DT_DIR = 4
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diff changeset
446 DT_REG = 8
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parents:
diff changeset
447 DT_LNK = 10
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diff changeset
448
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diff changeset
449 Dirent_p = ctypes.POINTER(Dirent)
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parents:
diff changeset
450 Dirent_pp = ctypes.POINTER(Dirent_p)
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parents:
diff changeset
451
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diff changeset
452 libc = ctypes.CDLL(ctypes.util.find_library('c'), use_errno=True)
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diff changeset
453 opendir = libc.opendir
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parents:
diff changeset
454 opendir.argtypes = [ctypes.c_char_p]
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diff changeset
455 opendir.restype = DIR_p
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diff changeset
456
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diff changeset
457 readdir_r = libc.readdir_r
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parents:
diff changeset
458 readdir_r.argtypes = [DIR_p, Dirent_p, Dirent_pp]
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diff changeset
459 readdir_r.restype = ctypes.c_int
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diff changeset
460
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diff changeset
461 closedir = libc.closedir
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parents:
diff changeset
462 closedir.argtypes = [DIR_p]
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diff changeset
463 closedir.restype = ctypes.c_int
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diff changeset
464
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diff changeset
465 file_system_encoding = sys.getfilesystemencoding()
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diff changeset
466
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
467 class PosixDirEntry(object):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
468 __slots__ = ('name', '_d_type', '_stat', '_lstat', '_scandir_path', '_path', '_inode')
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guerler
parents:
diff changeset
469
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parents:
diff changeset
470 def __init__(self, scandir_path, name, d_type, inode):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
471 self._scandir_path = scandir_path
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parents:
diff changeset
472 self.name = name
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parents:
diff changeset
473 self._d_type = d_type
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
474 self._inode = inode
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
475 self._stat = None
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
476 self._lstat = None
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
477 self._path = None
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
478
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
479 @property
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
480 def path(self):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
481 if self._path is None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
482 self._path = join(self._scandir_path, self.name)
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parents:
diff changeset
483 return self._path
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
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diff changeset
484
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guerler
parents:
diff changeset
485 def stat(self, follow_symlinks=True):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
486 if follow_symlinks:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
487 if self._stat is None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
488 if self.is_symlink():
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diff changeset
489 self._stat = stat(self.path)
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diff changeset
490 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
491 if self._lstat is None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
492 self._lstat = lstat(self.path)
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guerler
parents:
diff changeset
493 self._stat = self._lstat
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
494 return self._stat
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
495 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
496 if self._lstat is None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
497 self._lstat = lstat(self.path)
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parents:
diff changeset
498 return self._lstat
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guerler
parents:
diff changeset
499
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
500 def is_dir(self, follow_symlinks=True):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
501 if (self._d_type == DT_UNKNOWN or
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guerler
parents:
diff changeset
502 (follow_symlinks and self.is_symlink())):
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guerler
parents:
diff changeset
503 try:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
504 st = self.stat(follow_symlinks=follow_symlinks)
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guerler
parents:
diff changeset
505 except OSError as e:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
506 if e.errno != ENOENT:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
507 raise
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
508 return False
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
509 return st.st_mode & 0o170000 == S_IFDIR
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parents:
diff changeset
510 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
511 return self._d_type == DT_DIR
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guerler
parents:
diff changeset
512
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
513 def is_file(self, follow_symlinks=True):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
514 if (self._d_type == DT_UNKNOWN or
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
515 (follow_symlinks and self.is_symlink())):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
516 try:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
517 st = self.stat(follow_symlinks=follow_symlinks)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
518 except OSError as e:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
519 if e.errno != ENOENT:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
520 raise
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
521 return False
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
522 return st.st_mode & 0o170000 == S_IFREG
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
523 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
524 return self._d_type == DT_REG
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
525
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
526 def is_symlink(self):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
527 if self._d_type == DT_UNKNOWN:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
528 try:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
529 st = self.stat(follow_symlinks=False)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
530 except OSError as e:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
531 if e.errno != ENOENT:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
532 raise
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
533 return False
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
534 return st.st_mode & 0o170000 == S_IFLNK
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
535 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
536 return self._d_type == DT_LNK
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
537
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
538 def inode(self):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
539 return self._inode
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
540
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
541 def __str__(self):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
542 return '<{0}: {1!r}>'.format(self.__class__.__name__, self.name)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
543
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
544 __repr__ = __str__
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
545
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
546 def posix_error(filename):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
547 errno = ctypes.get_errno()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
548 exc = OSError(errno, strerror(errno))
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
549 exc.filename = filename
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
550 return exc
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
551
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
552 def scandir_python(path=unicode('.')):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
553 """Like os.listdir(), but yield DirEntry objects instead of returning
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
554 a list of names.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
555 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
556 if isinstance(path, bytes):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
557 opendir_path = path
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
558 is_bytes = True
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
559 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
560 opendir_path = path.encode(file_system_encoding)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
561 is_bytes = False
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
562 dir_p = opendir(opendir_path)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
563 if not dir_p:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
564 raise posix_error(path)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
565 try:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
566 result = Dirent_p()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
567 while True:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
568 entry = Dirent()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
569 if readdir_r(dir_p, entry, result):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
570 raise posix_error(path)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
571 if not result:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
572 break
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
573 name = entry.d_name
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
574 if name not in (b'.', b'..'):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
575 if not is_bytes:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
576 name = name.decode(file_system_encoding)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
577 yield PosixDirEntry(path, name, entry.d_type, entry.d_ino)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
578 finally:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
579 if closedir(dir_p):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
580 raise posix_error(path)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
581
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
582 if _scandir is not None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
583 scandir_c = _scandir.scandir
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
584 DirEntry_c = _scandir.DirEntry
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
585
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
586 if _scandir is not None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
587 scandir = scandir_c
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
588 DirEntry = DirEntry_c
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
589 elif ctypes is not None and have_dirent_d_type:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
590 scandir = scandir_python
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
591 DirEntry = PosixDirEntry
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
592 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
593 scandir = scandir_generic
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
594 DirEntry = GenericDirEntry
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
595
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
596
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
597 # Some other system -- no d_type or stat information
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
598 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
599 scandir = scandir_generic
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
600 DirEntry = GenericDirEntry
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
601
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
602
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
603 def _walk(top, topdown=True, onerror=None, followlinks=False):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
604 """Like Python 3.5's implementation of os.walk() -- faster than
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
605 the pre-Python 3.5 version as it uses scandir() internally.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
606 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
607 dirs = []
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
608 nondirs = []
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
609
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
610 # We may not have read permission for top, in which case we can't
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
611 # get a list of the files the directory contains. os.walk
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
612 # always suppressed the exception then, rather than blow up for a
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
613 # minor reason when (say) a thousand readable directories are still
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
614 # left to visit. That logic is copied here.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
615 try:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
616 scandir_it = scandir(top)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
617 except OSError as error:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
618 if onerror is not None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
619 onerror(error)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
620 return
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
621
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
622 while True:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
623 try:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
624 try:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
625 entry = next(scandir_it)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
626 except StopIteration:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
627 break
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
628 except OSError as error:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
629 if onerror is not None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
630 onerror(error)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
631 return
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
632
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
633 try:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
634 is_dir = entry.is_dir()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
635 except OSError:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
636 # If is_dir() raises an OSError, consider that the entry is not
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
637 # a directory, same behaviour than os.path.isdir().
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
638 is_dir = False
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
639
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
640 if is_dir:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
641 dirs.append(entry.name)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
642 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
643 nondirs.append(entry.name)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
644
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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645 if not topdown and is_dir:
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646 # Bottom-up: recurse into sub-directory, but exclude symlinks to
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647 # directories if followlinks is False
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648 if followlinks:
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649 walk_into = True
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650 else:
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651 try:
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652 is_symlink = entry.is_symlink()
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653 except OSError:
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654 # If is_symlink() raises an OSError, consider that the
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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655 # entry is not a symbolic link, same behaviour than
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656 # os.path.islink().
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657 is_symlink = False
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658 walk_into = not is_symlink
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659
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660 if walk_into:
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661 for entry in walk(entry.path, topdown, onerror, followlinks):
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662 yield entry
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663
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guerler
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664 # Yield before recursion if going top down
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665 if topdown:
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guerler
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666 yield top, dirs, nondirs
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guerler
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667
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668 # Recurse into sub-directories
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guerler
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669 for name in dirs:
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670 new_path = join(top, name)
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671 # Issue #23605: os.path.islink() is used instead of caching
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672 # entry.is_symlink() result during the loop on os.scandir() because
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
673 # the caller can replace the directory entry during the "yield"
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guerler
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674 # above.
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675 if followlinks or not islink(new_path):
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guerler
parents:
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676 for entry in walk(new_path, topdown, onerror, followlinks):
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guerler
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677 yield entry
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678 else:
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guerler
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679 # Yield after recursion if going bottom up
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guerler
parents:
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680 yield top, dirs, nondirs
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parents:
diff changeset
681
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guerler
parents:
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682
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683 if IS_PY3 or sys.platform != 'win32':
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guerler
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684 walk = _walk
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685 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
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686 # Fix for broken unicode handling on Windows on Python 2.x, see:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
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687 # https://github.com/benhoyt/scandir/issues/54
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688 file_system_encoding = sys.getfilesystemencoding()
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689
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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690 def walk(top, topdown=True, onerror=None, followlinks=False):
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691 if isinstance(top, bytes):
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692 top = top.decode(file_system_encoding)
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693 return _walk(top, topdown, onerror, followlinks)