Mercurial > hg
annotate mercurial/posix.py @ 7906:c0dc1f15b30d
Add missing imports for posix.py for OS X
These don't seem to do harm on Linux.
author | Rocco Rutte <pdmef@gmx.net> |
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date | Fri, 27 Mar 2009 17:56:18 +0100 |
parents | e710f0f592b2 |
children | c289c3fc5985 |
rev | line source |
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1 """ |
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2 posix.py - Posix utility function implementations for Mercurial |
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3 |
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4 Copyright 2005-2009 Matt Mackall <mpm@selenic.com> and others |
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5 |
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6 This software may be used and distributed according to the terms of |
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7 the GNU General Public License version 2, incorporated herein by |
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8 reference. |
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9 """ |
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10 |
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11 from i18n import _ |
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12 import os, sys, osutil, errno, stat, getpass, pwd, grp |
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13 |
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14 posixfile = file |
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15 nulldev = '/dev/null' |
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16 normpath = os.path.normpath |
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17 samestat = os.path.samestat |
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18 |
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19 umask = os.umask(0) |
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20 os.umask(umask) |
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21 |
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22 def openhardlinks(): |
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23 '''return true if it is safe to hold open file handles to hardlinks''' |
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24 return True |
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25 |
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26 def rcfiles(path): |
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27 rcs = [os.path.join(path, 'hgrc')] |
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28 rcdir = os.path.join(path, 'hgrc.d') |
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29 try: |
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30 rcs.extend([os.path.join(rcdir, f) |
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31 for f, kind in osutil.listdir(rcdir) |
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32 if f.endswith(".rc")]) |
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33 except OSError: |
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34 pass |
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35 return rcs |
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36 |
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37 def system_rcpath(): |
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38 path = [] |
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39 # old mod_python does not set sys.argv |
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40 if len(getattr(sys, 'argv', [])) > 0: |
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41 path.extend(rcfiles(os.path.dirname(sys.argv[0]) + |
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42 '/../etc/mercurial')) |
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43 path.extend(rcfiles('/etc/mercurial')) |
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44 return path |
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45 |
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46 def user_rcpath(): |
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47 return [os.path.expanduser('~/.hgrc')] |
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48 |
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49 def parse_patch_output(output_line): |
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50 """parses the output produced by patch and returns the file name""" |
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51 pf = output_line[14:] |
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52 if os.sys.platform == 'OpenVMS': |
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53 if pf[0] == '`': |
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54 pf = pf[1:-1] # Remove the quotes |
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55 else: |
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56 if pf.startswith("'") and pf.endswith("'") and " " in pf: |
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57 pf = pf[1:-1] # Remove the quotes |
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58 return pf |
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59 |
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60 def sshargs(sshcmd, host, user, port): |
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61 '''Build argument list for ssh''' |
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62 args = user and ("%s@%s" % (user, host)) or host |
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63 return port and ("%s -p %s" % (args, port)) or args |
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64 |
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65 def is_exec(f): |
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66 """check whether a file is executable""" |
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67 return (os.lstat(f).st_mode & 0100 != 0) |
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68 |
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69 def set_flags(f, l, x): |
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70 s = os.lstat(f).st_mode |
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71 if l: |
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72 if not stat.S_ISLNK(s): |
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73 # switch file to link |
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74 data = file(f).read() |
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75 os.unlink(f) |
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76 try: |
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77 os.symlink(data, f) |
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78 except: |
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79 # failed to make a link, rewrite file |
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80 file(f, "w").write(data) |
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81 # no chmod needed at this point |
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82 return |
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83 if stat.S_ISLNK(s): |
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84 # switch link to file |
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85 data = os.readlink(f) |
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86 os.unlink(f) |
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87 file(f, "w").write(data) |
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88 s = 0666 & ~umask # avoid restatting for chmod |
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89 |
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90 sx = s & 0100 |
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91 if x and not sx: |
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92 # Turn on +x for every +r bit when making a file executable |
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93 # and obey umask. |
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94 os.chmod(f, s | (s & 0444) >> 2 & ~umask) |
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95 elif not x and sx: |
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96 # Turn off all +x bits |
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97 os.chmod(f, s & 0666) |
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98 |
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99 def set_binary(fd): |
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100 pass |
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101 |
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102 def pconvert(path): |
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103 return path |
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104 |
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105 def localpath(path): |
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106 return path |
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107 |
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108 def shellquote(s): |
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109 if os.sys.platform == 'OpenVMS': |
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110 return '"%s"' % s |
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111 else: |
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112 return "'%s'" % s.replace("'", "'\\''") |
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113 |
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114 def quotecommand(cmd): |
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115 return cmd |
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116 |
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117 def popen(command, mode='r'): |
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118 return os.popen(command, mode) |
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119 |
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120 def testpid(pid): |
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121 '''return False if pid dead, True if running or not sure''' |
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122 if os.sys.platform == 'OpenVMS': |
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123 return True |
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124 try: |
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125 os.kill(pid, 0) |
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126 return True |
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127 except OSError, inst: |
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128 return inst.errno != errno.ESRCH |
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129 |
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130 def explain_exit(code): |
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131 """return a 2-tuple (desc, code) describing a process's status""" |
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132 if os.WIFEXITED(code): |
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133 val = os.WEXITSTATUS(code) |
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134 return _("exited with status %d") % val, val |
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135 elif os.WIFSIGNALED(code): |
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136 val = os.WTERMSIG(code) |
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137 return _("killed by signal %d") % val, val |
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138 elif os.WIFSTOPPED(code): |
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139 val = os.WSTOPSIG(code) |
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140 return _("stopped by signal %d") % val, val |
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141 raise ValueError(_("invalid exit code")) |
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142 |
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143 def isowner(fp, st=None): |
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144 """Return True if the file object f belongs to the current user. |
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145 |
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146 The return value of a util.fstat(f) may be passed as the st argument. |
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147 """ |
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148 if st is None: |
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149 st = fstat(fp) |
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150 return st.st_uid == os.getuid() |
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151 |
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152 def find_exe(command): |
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153 '''Find executable for command searching like which does. |
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154 If command is a basename then PATH is searched for command. |
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155 PATH isn't searched if command is an absolute or relative path. |
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156 If command isn't found None is returned.''' |
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157 if sys.platform == 'OpenVMS': |
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158 return command |
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159 |
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160 def findexisting(executable): |
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161 'Will return executable if existing file' |
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162 if os.path.exists(executable): |
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163 return executable |
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164 return None |
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165 |
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166 if os.sep in command: |
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167 return findexisting(command) |
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168 |
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169 for path in os.environ.get('PATH', '').split(os.pathsep): |
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170 executable = findexisting(os.path.join(path, command)) |
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171 if executable is not None: |
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172 return executable |
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173 return None |
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174 |
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175 def set_signal_handler(): |
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176 pass |
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177 |
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178 def statfiles(files): |
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179 'Stat each file in files and yield stat or None if file does not exist.' |
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180 lstat = os.lstat |
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181 for nf in files: |
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182 try: |
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183 st = lstat(nf) |
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184 except OSError, err: |
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185 if err.errno not in (errno.ENOENT, errno.ENOTDIR): |
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186 raise |
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187 st = None |
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188 yield st |
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189 |
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190 def getuser(): |
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191 '''return name of current user''' |
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192 return getpass.getuser() |
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193 |
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194 def expand_glob(pats): |
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195 '''On Windows, expand the implicit globs in a list of patterns''' |
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196 return list(pats) |
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197 |
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198 def username(uid=None): |
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199 """Return the name of the user with the given uid. |
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200 |
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201 If uid is None, return the name of the current user.""" |
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202 |
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203 if uid is None: |
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204 uid = os.getuid() |
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205 try: |
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206 return pwd.getpwuid(uid)[0] |
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207 except KeyError: |
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208 return str(uid) |
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209 |
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210 def groupname(gid=None): |
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211 """Return the name of the group with the given gid. |
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212 |
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213 If gid is None, return the name of the current group.""" |
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214 |
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215 if gid is None: |
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216 gid = os.getgid() |
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217 try: |
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218 return grp.getgrgid(gid)[0] |
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219 except KeyError: |
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220 return str(gid) |
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221 |
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222 |