Mercurial > hgrepos > Python > apps > py-cutils
annotate cutils/util/walk.py @ 352:b256ae4f4bc8
treesum: implement the "filetypes" command to show all the filetype indicators that are used in digest output
| author | Franz Glasner <fzglas.hg@dom66.de> |
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| date | Tue, 01 Apr 2025 20:38:06 +0200 |
| parents | 0a58948df713 |
| children | 7761a15b9736 |
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1 # -*- coding: utf-8 -*- |
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2 # :- |
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3 # SPDX-FileCopyrightText: © 2025 Franz Glasner |
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4 # SPDX-License-Identifier: BSD-3-Clause |
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5 # :- |
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6 r"""Utility sub-module to implement a heavily customized :func:`os.walk`. |
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7 |
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8 """ |
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9 |
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10 from __future__ import print_function, absolute_import |
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11 |
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12 |
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13 __all__ = ["WalkDirEntry", "ScanDir", "getfsencoding"] |
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14 |
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15 |
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16 import logging |
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17 import os |
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18 try: |
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19 from os import scandir |
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20 except ImportError: |
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21 try: |
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22 from scandir import scandir |
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23 except ImportError: |
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24 scandir = None |
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25 import stat |
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26 import sys |
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27 |
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28 from . import PY2 |
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29 |
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30 |
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31 HELP_FILETYPE_INDICATORS = r""" |
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32 FILETYPE INDICATORS |
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33 =================== |
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34 |
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35 File and directory paths are printed using names analogous to calling |
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36 "ls -F/--classify". The indicator strings (aka "marker" or "tags") are |
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37 appended to their names as follows. |
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38 |
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39 Some standard indicators are: |
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40 |
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41 / |
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42 denotes a directory |
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43 |
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44 /./@/ |
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45 denotes a symbolic link to a directory |
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46 |
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47 /./@ |
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48 Classifies a symlink to a regular filesystem object (i.e. a regular file). |
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49 The target objects are not classified as directories or other special |
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50 filesystem objects. |
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51 Also used if a symbolic link is broken and the target type cannot |
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52 determined. |
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53 |
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54 /./| --- /./@| |
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55 FIFO --- symlink to FIFO |
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56 |
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57 /./= --- /./@= |
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58 Socket --- symlink to socket |
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59 |
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60 /./> --- /./@> |
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61 Door -- symlink to door. |
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62 |
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63 Solaris. |
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64 |
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65 /./% --- /./@% |
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66 Whiteout --- symlink to whiteout. |
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67 |
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68 Typically Used by union filesystems) (BSD). |
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69 |
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70 More non-standard indicators are: |
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71 |
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72 /./: --- /./@: |
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73 Character special device --- symlink to character special device |
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74 |
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75 /./; --- /./@; |
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76 Block special device --- symlink to block special device |
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77 |
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78 /./+ --- /./@+ |
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79 Event port --- symlink to event port. |
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80 |
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81 Solaris, Illumos. |
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82 |
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83 In an aggregated (directory) checksum at the end of a block the following |
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84 indicators are used: |
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85 |
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86 ./@/ |
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87 Symbolic link to a directory |
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88 |
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89 ./@ |
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90 Symbolic link to other filesystem object. |
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91 |
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92 Also used if the link is broken and the target type cannot determined. |
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93 |
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94 NOTE: Executable files have no special indicator here. The "ls -F" command |
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95 would use the `*' character in this case. |
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96 |
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97 """ |
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98 |
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99 |
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100 _notset = object() |
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101 |
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102 _logger = logging.getLogger(__name__) |
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103 |
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104 _FSENCODING = sys.getfilesystemencoding() |
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105 |
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106 |
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107 if PY2: |
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108 |
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109 def _unix_path(s): |
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110 if isinstance(s, bytes): |
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111 return s.replace(b"\\", b"/") |
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112 return s.replace(u"\\", u"/") |
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113 |
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114 else: |
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115 |
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116 def _unix_path(s): |
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117 return s.replace("\\", "/") |
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118 |
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119 |
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120 class WalkDirEntry(object): |
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121 |
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122 """A :class:`os.DirEntry` alike to be used in :func:`walk` and for |
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123 its results. |
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124 |
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125 """ |
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126 |
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127 __slots__ = ("_name", "_path", # encoded as given in the ctor |
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128 "_is_symlink", "_is_reg", "_is_dir", "_stat_result", |
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129 "_stat_errno", "_stat_errstr", |
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130 "_alt_fsname", "_alt_u8name") |
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131 |
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132 def __init__(self, name, path): |
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133 self._name = name # the name as given in the constructor |
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134 """The name exactly as given in the ctor""" |
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135 self._path = _unix_path(path) |
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136 """The path as given in the ctor -- but normalized to have slashes""" |
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137 self._is_symlink = self._is_reg = self._is_dir = self._stat_result = \ |
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138 self._stat_errno = self._stat_errstr = None |
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139 self._alt_fsname = self._alt_u8name = _notset |
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140 |
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141 @property |
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142 def name(self): |
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143 """The original name exactly as given in the ctor""" |
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144 return self._name |
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145 |
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146 @property |
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147 def path(self): |
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148 """The original path exactly as given in the ctor.""" |
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149 return self._path |
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150 |
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151 @property |
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152 def fsname(self): |
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153 """The name as bytes for the filesystem. |
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154 |
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155 Also do not allow CR of LF in the name. |
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156 |
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157 :rtype: bytes or None |
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158 |
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159 """ |
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160 if PY2: |
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161 if isinstance(self._name, bytes): |
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162 s = self._name |
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163 try: |
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164 s = self._name.encode(_FSENCODING, "strict") |
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165 except UnicodeError: |
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166 return None |
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167 else: |
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168 s = os.fsencode(self._name) |
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169 if (b'\n' in s) or (b'\r' in s) or (b'\\' in s): |
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170 return None |
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171 return s |
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172 |
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173 @property |
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174 def fspath(self): |
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175 """Always bytes. |
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176 |
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177 Also do not allow CR of LF in the path. |
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178 |
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179 :rtype: bytes or None |
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180 |
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181 """ |
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182 if PY2: |
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183 if isinstance(self._path, bytes): |
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184 p = self._path |
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185 try: |
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186 p = self._path.encode(_FSENCODING, "strict") |
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187 except UnicodeError: |
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188 return None |
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189 else: |
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190 p = os.fsencode(self._path) |
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191 if (b'\n' in p) or (b'\r' in p) or (b'\\' in p): |
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192 return None |
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193 return p |
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194 |
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195 @property |
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196 def alt_fsname(self): |
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197 """Alternative and "escaped" filesystem name -- always bytes. |
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198 |
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199 :rtype: bytes |
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200 |
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201 """ |
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202 if self._alt_fsname is _notset: |
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203 self._alt_fsname = WalkDirEntry.alt_fs(self._name) |
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204 return self._alt_fsname |
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205 |
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206 @property |
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207 def alt_fspath(self): |
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208 """Alternative and "escaped" filesystem path -- always bytes. |
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209 |
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210 :rtype: bytes |
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211 |
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212 """ |
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203
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213 return WalkDirEntry.alt_fs(self._path) |
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214 |
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215 @staticmethod |
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216 def alt_fs(what): |
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217 # |
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218 # Prevent double encoding ... |
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219 # ... and hope that the current FS encoding is compatible |
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220 # with it |
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221 # |
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222 if isinstance(what, bytes): |
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223 s = (what.replace(b'\\', b"\\x5c") |
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224 .replace(b'\n', b"\\x0a") |
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225 .replace(b'\r', b"\\x0d") |
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226 .replace(b'\t', b"\\x09")) |
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227 else: |
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228 s = (what.replace(u'\\', u"\\x5c") |
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229 .replace(u'\n', u"\\x0a") |
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230 .replace(u'\r', u"\\x0d") |
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231 .replace(u'\t', u"\\x09")) |
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232 if PY2: |
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283
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233 if isinstance(s, bytes): |
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234 return s |
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281
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235 else: |
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236 return s.encode(_FSENCODING, "backslashreplace") |
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237 else: |
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238 return os.fsencode(s) |
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239 |
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240 @property |
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241 def uname(self): |
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242 """Always "real", strictly encoded Unicode or `None` if this is not |
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243 possible. |
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244 |
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245 :rtype: text or None |
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246 |
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247 """ |
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248 if PY2: |
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249 if isinstance(self._name, bytes): |
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250 try: |
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251 return self._name.decode(_FSENCODING, "strict") |
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252 except UnicodeError: |
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253 return None |
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254 else: |
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255 return self._name |
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256 else: |
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257 try: |
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258 self._name.encode("utf-8", "strict") |
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259 except UnicodeError: |
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260 return None |
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261 return self._name |
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262 |
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263 @property |
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264 def upath(self): |
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265 """Always "real", strictly encoded Unicode or `None` if this is not |
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266 possible. |
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267 |
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268 :rtype: text or None |
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269 |
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270 """ |
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271 if PY2: |
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272 if isinstance(self._path, bytes): |
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273 try: |
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274 return self._path.decode(_FSENCODING, "strict") |
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275 except UnicodeError: |
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276 return None |
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277 else: |
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278 return self._path |
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279 else: |
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280 try: |
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281 self._path.encode("utf-8", "strict") |
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282 except UnicodeError: |
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283 return None |
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284 return self._path |
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285 |
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286 @property |
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287 def u8name(self): |
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276
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288 """`.uname` as UTF-8 or `None` (as strict as `uname`). |
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289 |
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290 Also do not allow CR of LF in the name. |
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291 |
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292 """ |
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293 n = self.uname |
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294 if n is None: |
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295 return None |
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280
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296 if (u'\n' in n) or (u'\r' in n) or (u'\\' in n): |
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297 return None |
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298 return n.encode("utf-8", "strict") |
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299 |
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300 @property |
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301 def u8path(self): |
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302 """`.upath` as UTF-8 or `None` (as strict as `upath`. |
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303 |
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304 Also do not allow CR or LF in the path. |
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305 |
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306 """ |
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307 p = self.upath |
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308 if p is None: |
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309 return None |
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280
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310 if (u'\n' in p) or (u'\r' in p) or (u'\\' in p): |
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311 return None |
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312 return p.encode("utf-8", "strict") |
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313 |
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314 @property |
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315 def alt_u8name(self): |
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316 if self._alt_u8name is _notset: |
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317 self._alt_u8name = WalkDirEntry.alt_u8(self._name) |
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318 return self._alt_u8name |
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319 |
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320 @property |
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321 def alt_u8path(self): |
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322 return WalkDirEntry.alt_u8(self._path) |
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323 |
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324 @staticmethod |
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325 def alt_u8(what): |
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326 # |
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327 # Prevent double encoding ... |
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328 # ... and hope that the current UTF-8 is compatible |
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329 # with it |
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330 # |
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331 if isinstance(what, bytes): |
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332 s = (what.replace(b'\\', b"\\x5c") |
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333 .replace(b'\n', b"\\x0a") |
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343
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334 .replace(b'\r', b"\\x0d") |
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335 .replace(b'\t', b"\\x09")) |
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336 else: |
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337 s = (what.replace(u'\\', u"\\x5c") |
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338 .replace(u'\n', u"\\x0a") |
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339 .replace(u'\r', u"\\x0d") |
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340 .replace(u'\t', u"\\x09")) |
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341 if PY2: |
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342 if isinstance(s, bytes): |
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343 try: |
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344 return (s.decode(_FSENCODING, "strict") |
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345 .encode("utf-8", "strict")) |
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346 except UnicodeError: |
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347 return (WalkDirEntry.surrogate_decode(s) |
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348 .encode("ascii", "backslashreplace")) |
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349 else: |
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350 return s.encode("ascii", "backslashreplace") |
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351 else: |
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352 return s.encode("utf-8", "backslashreplace") |
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353 |
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354 @property |
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355 def is_symlink(self): |
|
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356 return self._is_symlink |
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357 |
|
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358 @property |
|
273
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359 def is_reg(self): |
|
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360 return self._is_reg |
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361 |
|
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362 @property |
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363 def is_dir(self): |
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364 return self._is_dir |
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365 |
|
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366 @property |
|
274
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367 def is_chr(self): |
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368 return (stat.S_ISCHR(self._stat_result.st_mode) |
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369 if self._stat_result is not None |
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370 else False) |
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371 |
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372 @property |
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373 def is_blk(self): |
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374 return (stat.S_ISBLK(self._stat_result.st_mode) |
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375 if self._stat_result is not None |
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376 else False) |
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377 |
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378 @property |
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379 def is_fifo(self): |
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380 return (stat.S_ISFIFO(self._stat_result.st_mode) |
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381 if self._stat_result is not None |
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382 else False) |
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383 |
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384 @property |
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385 def is_socket(self): |
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386 return (stat.S_ISSOCK(self._stat_result.st_mode) |
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387 if self._stat_result is not None |
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388 else False) |
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389 |
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390 @property |
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391 def is_door(self): |
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392 test = getattr(stat, "S_ISDOOR", None) |
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393 return (test(self._stat_result.st_mode) |
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394 if test and (self._stat_result is not None) |
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395 else False) |
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396 |
|
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397 @property |
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398 def is_eventport(self): |
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399 test = getattr(stat, "S_ISPORT", None) |
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400 return (test(self._stat_result.st_mode) |
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401 if test and (self._stat_result is not None) |
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402 else False) |
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403 |
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404 @property |
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405 def is_whiteout(self): |
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406 test = getattr(stat, "S_ISWHT", None) |
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407 return (test(self._stat_result.st_mode) |
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408 if test and (self._stat_result is not None) |
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409 else False) |
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410 |
|
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411 @property |
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412 def is_special(self): |
|
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413 """Anything besides a regular file and a directory""" |
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414 if self._stat_result is None: |
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415 return False |
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416 return not (self.is_reg or self.is_dir) |
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417 |
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418 @property |
|
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419 def special_tag(self): |
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420 """Return a special tag (string) for a special file""" |
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421 assert self.is_special |
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422 if self.is_chr: |
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423 return ':' |
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424 elif self.is_blk: |
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425 return ';' |
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426 elif self.is_fifo: |
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427 return '|' |
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428 elif self.is_socket: |
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429 return '=' |
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430 elif self.is_door: |
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431 return '>' |
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432 elif self.is_whiteout: |
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433 return '%' |
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434 elif self.is_eventport: |
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435 return '+' |
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436 _logger.warning( |
|
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437 "unknown special file type: 0x%X", |
|
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438 stat.S_IFMT(self._stat_result.st_mode)) |
|
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439 return '?' |
|
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440 |
|
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441 @property |
|
121
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442 def stat(self): |
|
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443 return self._stat_result |
|
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444 |
|
266
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445 @property |
|
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446 def stat_errno(self): |
|
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447 return self._stat_errno |
|
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448 |
|
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449 @property |
|
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450 def stat_errstr(self): |
|
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451 return self._stat_errstr |
|
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452 |
|
121
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|
453 def __repr__(self): |
|
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454 tag = "" |
|
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455 if self._is_symlink: |
|
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456 tag += "l" |
|
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|
457 if self._is_dir: |
|
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|
458 tag += "d" |
|
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|
459 if tag: |
|
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|
460 return "<WalkDirEntry %r (%s)>" % (self._name, tag) |
|
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|
461 return "<WalkDirEntry %r>" % (self._name,) |
|
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changeset
|
462 |
|
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changeset
|
463 @classmethod |
|
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changeset
|
464 def from_direntry(cls_, entry): |
|
201
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465 w = cls_(entry.name, entry.path) |
|
121
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|
466 try: |
|
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changeset
|
467 w._is_dir = entry.is_dir(follow_symlinks=True) |
|
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changeset
|
468 except OSError: |
|
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changeset
|
469 # |
|
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A heavily customized "os.walk()" alike to support the coming treeview implementation
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changeset
|
470 # If is_dir() raises an OSError, consider that the entry |
|
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changeset
|
471 # is not a directory, same behaviour than os.path.isdir(). |
|
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|
472 # |
|
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|
473 w._is_dir = False |
|
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|
474 try: |
|
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A heavily customized "os.walk()" alike to support the coming treeview implementation
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changeset
|
475 w._is_symlink = entry.is_symlink() |
|
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A heavily customized "os.walk()" alike to support the coming treeview implementation
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|
476 except OSError: |
|
2dc26a2f3d1c
A heavily customized "os.walk()" alike to support the coming treeview implementation
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changeset
|
477 # |
|
2dc26a2f3d1c
A heavily customized "os.walk()" alike to support the coming treeview implementation
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parents:
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changeset
|
478 # If is_symlink() raises an OSError, consider that the entry |
|
2dc26a2f3d1c
A heavily customized "os.walk()" alike to support the coming treeview implementation
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parents:
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changeset
|
479 # is not a symbolic link, same behaviour than os.path.islink(). |
|
2dc26a2f3d1c
A heavily customized "os.walk()" alike to support the coming treeview implementation
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changeset
|
480 # |
|
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A heavily customized "os.walk()" alike to support the coming treeview implementation
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|
481 w._is_symlink = False |
|
266
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482 # Consistently follow symlinks |
|
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|
483 try: |
|
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|
484 w._stat_result = entry.stat(follow_symlinks=True) |
|
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485 except OSError as e: |
|
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|
486 w._stat_result = None |
|
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487 w._stat_errno = e.errno |
|
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488 w._stat_errstr = e.strerror |
|
273
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489 w._is_reg = False |
|
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490 else: |
|
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|
491 w._is_reg = stat.S_ISREG(w._stat_result.st_mode) |
|
121
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|
492 return w |
|
2dc26a2f3d1c
A heavily customized "os.walk()" alike to support the coming treeview implementation
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changeset
|
493 |
|
162
29dd5528174c
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changeset
|
494 @classmethod |
|
201
58d93453c307
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|
495 def from_path_name(cls_, path, name, _do_stat=True): |
| 265 | 496 """`_do_stat` is to be used only for testing purposes""" |
|
201
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|
497 w = cls_(name, os.path.join(path, name)) |
|
162
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|
498 try: |
|
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Implement walk._walk() using os.listdir() also.
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|
499 w._is_dir = os.path.isdir(w._path) |
|
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Implement walk._walk() using os.listdir() also.
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changeset
|
500 except OSError: |
|
29dd5528174c
Implement walk._walk() using os.listdir() also.
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changeset
|
501 # |
|
29dd5528174c
Implement walk._walk() using os.listdir() also.
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changeset
|
502 # If is_dir() raises an OSError, consider that the entry |
|
29dd5528174c
Implement walk._walk() using os.listdir() also.
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changeset
|
503 # is not a directory, same behaviour than os.path.isdir(). |
|
29dd5528174c
Implement walk._walk() using os.listdir() also.
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changeset
|
504 # |
|
29dd5528174c
Implement walk._walk() using os.listdir() also.
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changeset
|
505 w._is_dir = False |
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506 try: |
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507 w._is_symlink = os.path.islink(w._path) |
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|
508 except OSError: |
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|
509 # |
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510 # If is_symlink() raises an OSError, consider that the entry |
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511 # is not a symbolic link, same behaviour than os.path.islink(). |
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512 # |
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513 w._is_symlink = False |
|
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514 if _do_stat: |
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266
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515 try: |
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|
516 w._stat_result = os.stat(w._path) |
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517 except OSError as e: |
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518 w._stat_result = None |
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|
519 w._stat_errno = e.errno |
|
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520 w._stat_errstr = e.strerror |
|
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521 w._is_reg = False |
|
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522 else: |
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523 w._is_reg = stat.S_ISREG(w._stat_result.st_mode) |
|
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524 return w |
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525 |
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526 @classmethod |
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527 def from_readlink(cls_, path): |
|
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528 w = cls_(os.path.basename(path), path) |
|
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529 return w |
|
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|
530 |
|
121
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|
531 @staticmethod |
|
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532 def sort_key_fs(entry): |
|
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533 return entry.alt_fsname # because it should never throw |
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534 |
|
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|
535 @staticmethod |
|
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|
536 def sort_key_u8(entry): |
|
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537 return entry.alt_u8name # because it should never throw |
|
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|
538 |
|
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|
539 if PY2: |
|
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|
540 |
|
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|
541 @staticmethod |
|
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|
542 def surrogate_decode(what): |
|
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|
543 """Decode the bytes object `what` using surrogates from :pep:`383` |
|
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|
544 for all non-ASCII octets. |
|
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545 |
|
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|
546 """ |
|
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changeset
|
547 uwhat = [] |
|
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changeset
|
548 assert isinstance(what, bytes) |
|
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diff
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|
549 for ch in what: |
|
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diff
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|
550 chcode = ord(ch) |
|
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changeset
|
551 if chcode <= 0x7f: |
|
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diff
changeset
|
552 uwhat.append(unichr(chcode)) # noqa: F821 unichr |
|
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diff
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|
553 else: |
|
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diff
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|
554 uwhat.append(unichr(0xDC00 + chcode)) # noqa: F821 unichr |
|
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|
555 return u"".join(uwhat) |
|
121
2dc26a2f3d1c
A heavily customized "os.walk()" alike to support the coming treeview implementation
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changeset
|
556 |
|
2dc26a2f3d1c
A heavily customized "os.walk()" alike to support the coming treeview implementation
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parents:
diff
changeset
|
557 |
|
2dc26a2f3d1c
A heavily customized "os.walk()" alike to support the coming treeview implementation
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
558 if scandir: |
|
2dc26a2f3d1c
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Franz Glasner <fzglas.hg@dom66.de>
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changeset
|
559 |
|
178
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Cleanup: remove non used walk-code
Franz Glasner <fzglas.hg@dom66.de>
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diff
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|
560 class ScanDir(object): |
|
175
506d895a8500
Implement cutils.util.walk.Scandir as a wrapper for os.scandir()
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|
561 |
|
506d895a8500
Implement cutils.util.walk.Scandir as a wrapper for os.scandir()
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diff
changeset
|
562 """An :func:`os.scandir` wrapper that is always an iterator and |
|
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Implement cutils.util.walk.Scandir as a wrapper for os.scandir()
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changeset
|
563 a context manager. |
|
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Implement cutils.util.walk.Scandir as a wrapper for os.scandir()
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diff
changeset
|
564 |
|
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diff
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|
565 """ |
|
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Implement cutils.util.walk.Scandir as a wrapper for os.scandir()
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diff
changeset
|
566 |
|
506d895a8500
Implement cutils.util.walk.Scandir as a wrapper for os.scandir()
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changeset
|
567 __slots__ = ("_scandir_it", ) |
|
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Implement cutils.util.walk.Scandir as a wrapper for os.scandir()
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diff
changeset
|
568 |
|
506d895a8500
Implement cutils.util.walk.Scandir as a wrapper for os.scandir()
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changeset
|
569 def __init__(self, path): |
|
506d895a8500
Implement cutils.util.walk.Scandir as a wrapper for os.scandir()
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diff
changeset
|
570 super(ScanDir, self).__init__() |
|
195
e5f6f4db9157
Use the imported "scandir()" implementation instead always the "os.scandir"
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192
diff
changeset
|
571 self._scandir_it = scandir(path) |
|
175
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diff
changeset
|
572 |
|
506d895a8500
Implement cutils.util.walk.Scandir as a wrapper for os.scandir()
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diff
changeset
|
573 def __iter__(self): |
|
506d895a8500
Implement cutils.util.walk.Scandir as a wrapper for os.scandir()
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diff
changeset
|
574 return self |
|
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Implement cutils.util.walk.Scandir as a wrapper for os.scandir()
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diff
changeset
|
575 |
|
506d895a8500
Implement cutils.util.walk.Scandir as a wrapper for os.scandir()
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changeset
|
576 def __next__(self): |
|
199
b2aba84ca426
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diff
changeset
|
577 if self._scandir_it is None: |
|
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Implement a "close()" method for cutils.util.walk.ScanDir.
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|
578 raise StopIteration("closed") |
|
175
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Implement cutils.util.walk.Scandir as a wrapper for os.scandir()
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|
579 return WalkDirEntry.from_direntry(next(self._scandir_it)) |
|
506d895a8500
Implement cutils.util.walk.Scandir as a wrapper for os.scandir()
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changeset
|
580 |
|
506d895a8500
Implement cutils.util.walk.Scandir as a wrapper for os.scandir()
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parents:
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changeset
|
581 if PY2: |
|
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Implement cutils.util.walk.Scandir as a wrapper for os.scandir()
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|
582 next = __next__ |
|
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Implement cutils.util.walk.Scandir as a wrapper for os.scandir()
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parents:
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changeset
|
583 |
|
506d895a8500
Implement cutils.util.walk.Scandir as a wrapper for os.scandir()
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parents:
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|
584 def __enter__(self): |
|
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Implement cutils.util.walk.Scandir as a wrapper for os.scandir()
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585 return self |
|
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Implement cutils.util.walk.Scandir as a wrapper for os.scandir()
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diff
changeset
|
586 |
|
506d895a8500
Implement cutils.util.walk.Scandir as a wrapper for os.scandir()
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changeset
|
587 def __exit__(self, *args, **kwds): |
|
199
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Implement a "close()" method for cutils.util.walk.ScanDir.
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changeset
|
588 self.close() |
|
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diff
changeset
|
589 |
|
b2aba84ca426
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changeset
|
590 def close(self): |
|
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changeset
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591 if self._scandir_it is not None: |
|
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changeset
|
592 if hasattr(self._scandir_it, "close"): |
|
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changeset
|
593 self._scandir_it.close() |
|
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changeset
|
594 self._scandir_it = None |
|
175
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changeset
|
595 |
|
121
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diff
changeset
|
596 else: |
|
2dc26a2f3d1c
A heavily customized "os.walk()" alike to support the coming treeview implementation
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff
changeset
|
597 |
|
178
dac26a2d9de5
Cleanup: remove non used walk-code
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diff
changeset
|
598 class ScanDir(object): |
|
175
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Implement cutils.util.walk.Scandir as a wrapper for os.scandir()
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changeset
|
599 |
|
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Implement cutils.util.walk.Scandir as a wrapper for os.scandir()
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changeset
|
600 """An :func:`os.scandir` wrapper that is always an iterator and |
|
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Implement cutils.util.walk.Scandir as a wrapper for os.scandir()
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changeset
|
601 a context manager. |
|
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|
602 |
|
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Implement cutils.util.walk.Scandir as a wrapper for os.scandir()
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changeset
|
603 """ |
|
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changeset
|
604 |
|
506d895a8500
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605 __slots__ = ("_listdir_it", "_path") |
|
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changeset
|
606 |
|
506d895a8500
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607 def __init__(self, path): |
|
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608 super(ScanDir, self).__init__() |
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609 self._listdir_it = iter(os.listdir(path)) |
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610 self._path = path |
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611 |
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612 def __iter__(self): |
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613 return self |
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614 |
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615 def __next__(self): |
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616 if self._listdir_it is None: |
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617 raise StopIteration("closed") |
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175
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618 return WalkDirEntry.from_path_name(self._path, |
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619 next(self._listdir_it)) |
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620 |
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621 if PY2: |
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622 next = __next__ |
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623 |
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624 def __enter__(self): |
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625 return self |
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626 |
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627 def __exit__(self, *args, **kwds): |
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628 pass |
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629 |
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630 def close(self): |
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631 pass |
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632 |
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198
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633 |
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634 def getfsencoding(): |
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635 """Return the stored _FSENCODING of this module""" |
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636 return _FSENCODING |
