Mercurial > hg
annotate mercurial/windows.py @ 14064:e4bfb9c337f3
remove unused imports and variables
author | Alexander Solovyov <alexander@solovyov.net> |
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date | Sat, 30 Apr 2011 13:59:14 +0200 |
parents | 97ed99d1f419 |
children | 8abe4db2d162 |
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1 # windows.py - Windows utility function implementations for Mercurial |
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2 # |
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3 # Copyright 2005-2009 Matt Mackall <mpm@selenic.com> and others |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
10263 | 6 # GNU General Public License version 2 or any later version. |
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7 |
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8 from i18n import _ |
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9 import osutil |
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10 import errno, msvcrt, os, re, sys |
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11 |
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12 nulldev = 'NUL:' |
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13 umask = 002 |
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14 |
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15 # wrap osutil.posixfile to provide friendlier exceptions |
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16 def posixfile(name, mode='r', buffering=-1): |
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17 try: |
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18 return osutil.posixfile(name, mode, buffering) |
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19 except WindowsError, err: |
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20 raise IOError(err.errno, '%s: %s' % (name, err.strerror)) |
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21 posixfile.__doc__ = osutil.posixfile.__doc__ |
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22 |
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23 class winstdout(object): |
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24 '''stdout on windows misbehaves if sent through a pipe''' |
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25 |
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26 def __init__(self, fp): |
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27 self.fp = fp |
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28 |
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29 def __getattr__(self, key): |
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30 return getattr(self.fp, key) |
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31 |
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32 def close(self): |
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33 try: |
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34 self.fp.close() |
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35 except IOError: |
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36 pass |
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37 |
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38 def write(self, s): |
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39 try: |
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40 # This is workaround for "Not enough space" error on |
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41 # writing large size of data to console. |
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42 limit = 16000 |
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43 l = len(s) |
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44 start = 0 |
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45 self.softspace = 0 |
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46 while start < l: |
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47 end = start + limit |
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48 self.fp.write(s[start:end]) |
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49 start = end |
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50 except IOError, inst: |
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51 if inst.errno != 0: |
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52 raise |
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53 self.close() |
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54 raise IOError(errno.EPIPE, 'Broken pipe') |
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55 |
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56 def flush(self): |
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57 try: |
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58 return self.fp.flush() |
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59 except IOError, inst: |
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60 if inst.errno != errno.EINVAL: |
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61 raise |
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62 self.close() |
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63 raise IOError(errno.EPIPE, 'Broken pipe') |
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64 |
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65 sys.stdout = winstdout(sys.stdout) |
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66 |
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67 def _is_win_9x(): |
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68 '''return true if run on windows 95, 98 or me.''' |
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69 try: |
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70 return sys.getwindowsversion()[3] == 1 |
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71 except AttributeError: |
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72 return 'command' in os.environ.get('comspec', '') |
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73 |
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74 def openhardlinks(): |
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75 return not _is_win_9x() |
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76 |
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77 def parse_patch_output(output_line): |
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78 """parses the output produced by patch and returns the filename""" |
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79 pf = output_line[14:] |
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80 if pf[0] == '`': |
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81 pf = pf[1:-1] # Remove the quotes |
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82 return pf |
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83 |
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84 def sshargs(sshcmd, host, user, port): |
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85 '''Build argument list for ssh or Plink''' |
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86 pflag = 'plink' in sshcmd.lower() and '-P' or '-p' |
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87 args = user and ("%s@%s" % (user, host)) or host |
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88 return port and ("%s %s %s" % (args, pflag, port)) or args |
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89 |
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90 def set_flags(f, l, x): |
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91 pass |
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92 |
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93 def checkexec(path): |
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94 return False |
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95 |
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96 def checklink(path): |
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97 return False |
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98 |
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99 def set_binary(fd): |
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100 # When run without console, pipes may expose invalid |
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101 # fileno(), usually set to -1. |
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102 if hasattr(fd, 'fileno') and fd.fileno() >= 0: |
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103 msvcrt.setmode(fd.fileno(), os.O_BINARY) |
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104 |
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105 def pconvert(path): |
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106 return '/'.join(path.split(os.sep)) |
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107 |
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108 def localpath(path): |
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109 return path.replace('/', '\\') |
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110 |
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111 def normpath(path): |
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112 return pconvert(os.path.normpath(path)) |
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113 |
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114 def realpath(path): |
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115 ''' |
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116 Returns the true, canonical file system path equivalent to the given |
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117 path. |
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118 ''' |
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119 # TODO: There may be a more clever way to do this that also handles other, |
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120 # less common file systems. |
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121 return os.path.normpath(os.path.normcase(os.path.realpath(path))) |
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122 |
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123 def samestat(s1, s2): |
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124 return False |
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125 |
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126 # A sequence of backslashes is special iff it precedes a double quote: |
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127 # - if there's an even number of backslashes, the double quote is not |
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128 # quoted (i.e. it ends the quoted region) |
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129 # - if there's an odd number of backslashes, the double quote is quoted |
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130 # - in both cases, every pair of backslashes is unquoted into a single |
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131 # backslash |
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132 # (See http://msdn2.microsoft.com/en-us/library/a1y7w461.aspx ) |
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133 # So, to quote a string, we must surround it in double quotes, double |
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134 # the number of backslashes that preceed double quotes and add another |
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135 # backslash before every double quote (being careful with the double |
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136 # quote we've appended to the end) |
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137 _quotere = None |
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138 def shellquote(s): |
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139 global _quotere |
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140 if _quotere is None: |
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141 _quotere = re.compile(r'(\\*)("|\\$)') |
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142 return '"%s"' % _quotere.sub(r'\1\1\\\2', s) |
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143 |
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144 def quotecommand(cmd): |
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145 """Build a command string suitable for os.popen* calls.""" |
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146 if sys.version_info < (2, 7, 1): |
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147 # Python versions since 2.7.1 do this extra quoting themselves |
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148 return '"' + cmd + '"' |
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149 return cmd |
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150 |
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151 def popen(command, mode='r'): |
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152 # Work around "popen spawned process may not write to stdout |
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153 # under windows" |
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154 # http://bugs.python.org/issue1366 |
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155 command += " 2> %s" % nulldev |
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156 return os.popen(quotecommand(command), mode) |
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157 |
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158 def explain_exit(code): |
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159 return _("exited with status %d") % code, code |
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160 |
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161 # if you change this stub into a real check, please try to implement the |
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162 # username and groupname functions above, too. |
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163 def isowner(st): |
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164 return True |
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165 |
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166 def find_exe(command): |
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167 '''Find executable for command searching like cmd.exe does. |
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168 If command is a basename then PATH is searched for command. |
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169 PATH isn't searched if command is an absolute or relative path. |
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170 An extension from PATHEXT is found and added if not present. |
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171 If command isn't found None is returned.''' |
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172 pathext = os.environ.get('PATHEXT', '.COM;.EXE;.BAT;.CMD') |
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173 pathexts = [ext for ext in pathext.lower().split(os.pathsep)] |
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174 if os.path.splitext(command)[1].lower() in pathexts: |
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175 pathexts = [''] |
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176 |
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177 def findexisting(pathcommand): |
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178 'Will append extension (if needed) and return existing file' |
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179 for ext in pathexts: |
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180 executable = pathcommand + ext |
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181 if os.path.exists(executable): |
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182 return executable |
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183 return None |
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184 |
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185 if os.sep in command: |
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186 return findexisting(command) |
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187 |
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188 for path in os.environ.get('PATH', '').split(os.pathsep): |
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189 executable = findexisting(os.path.join(path, command)) |
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190 if executable is not None: |
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191 return executable |
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192 return findexisting(os.path.expanduser(os.path.expandvars(command))) |
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193 |
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194 def statfiles(files): |
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195 '''Stat each file in files and yield stat or None if file does not exist. |
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196 Cluster and cache stat per directory to minimize number of OS stat calls.''' |
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197 ncase = os.path.normcase |
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198 dircache = {} # dirname -> filename -> status | None if file does not exist |
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199 for nf in files: |
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200 nf = ncase(nf) |
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201 dir, base = os.path.split(nf) |
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202 if not dir: |
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203 dir = '.' |
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204 cache = dircache.get(dir, None) |
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205 if cache is None: |
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206 try: |
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207 dmap = dict([(ncase(n), s) |
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208 for n, k, s in osutil.listdir(dir, True)]) |
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209 except OSError, err: |
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210 # handle directory not found in Python version prior to 2.5 |
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211 # Python <= 2.4 returns native Windows code 3 in errno |
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212 # Python >= 2.5 returns ENOENT and adds winerror field |
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213 # EINVAL is raised if dir is not a directory. |
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214 if err.errno not in (3, errno.ENOENT, errno.EINVAL, |
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215 errno.ENOTDIR): |
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216 raise |
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217 dmap = {} |
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218 cache = dircache.setdefault(dir, dmap) |
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219 yield cache.get(base, None) |
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220 |
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221 def username(uid=None): |
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222 """Return the name of the user with the given uid. |
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223 |
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224 If uid is None, return the name of the current user.""" |
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225 return None |
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226 |
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227 def groupname(gid=None): |
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228 """Return the name of the group with the given gid. |
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229 |
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230 If gid is None, return the name of the current group.""" |
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231 return None |
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232 |
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233 def _removedirs(name): |
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234 """special version of os.removedirs that does not remove symlinked |
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235 directories or junction points if they actually contain files""" |
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236 if osutil.listdir(name): |
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237 return |
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238 os.rmdir(name) |
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239 head, tail = os.path.split(name) |
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240 if not tail: |
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241 head, tail = os.path.split(head) |
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242 while head and tail: |
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243 try: |
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244 if osutil.listdir(head): |
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245 return |
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246 os.rmdir(head) |
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247 except (ValueError, OSError): |
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248 break |
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249 head, tail = os.path.split(head) |
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250 |
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251 def unlinkpath(f): |
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252 """unlink and remove the directory if it is empty""" |
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253 unlink(f) |
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254 # try removing directories that might now be empty |
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255 try: |
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256 _removedirs(os.path.dirname(f)) |
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257 except OSError: |
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258 pass |
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259 |
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260 def rename(src, dst): |
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261 '''atomically rename file src to dst, replacing dst if it exists''' |
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262 try: |
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263 os.rename(src, dst) |
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264 except OSError, e: |
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265 if e.errno != errno.EEXIST: |
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266 raise |
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267 unlink(dst) |
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268 os.rename(src, dst) |
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269 |
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270 def gethgcmd(): |
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271 return [sys.executable] + sys.argv[:1] |
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272 |
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273 def termwidth(): |
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274 # cmd.exe does not handle CR like a unix console, the CR is |
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275 # counted in the line length. On 80 columns consoles, if 80 |
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276 # characters are written, the following CR won't apply on the |
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277 # current line but on the new one. Keep room for it. |
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278 return 79 |
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279 |
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280 def groupmembers(name): |
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281 # Don't support groups on Windows for now |
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282 raise KeyError() |
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283 |
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284 from win32 import * |
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285 |
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286 expandglobs = True |