author | Nicolas Dumazet <nicdumz.commits@gmail.com> |
Sun, 24 May 2009 18:43:05 +0900 | |
changeset 8599 | 1f706b1b62f3 |
parent 8421 | b6d0fa8c7685 |
child 8559 | 4429751f5da7 |
permissions | -rw-r--r-- |
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# windows.py - Windows utility function implementations for Mercurial |
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# |
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# Copyright 2005-2009 Matt Mackall <mpm@selenic.com> and others |
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# |
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# This software may be used and distributed according to the terms of the |
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# GNU General Public License version 2, incorporated herein by reference. |
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from i18n import _ |
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import osutil, error |
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import errno, msvcrt, os, re, sys |
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nulldev = 'NUL:' |
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umask = 002 |
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# wrap osutil.posixfile to provide friendlier exceptions |
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def posixfile(name, mode='r', buffering=-1): |
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try: |
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return osutil.posixfile(name, mode, buffering) |
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except WindowsError, err: |
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raise WinIOError(err) |
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posixfile.__doc__ = osutil.posixfile.__doc__ |
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class winstdout: |
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'''stdout on windows misbehaves if sent through a pipe''' |
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def __init__(self, fp): |
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self.fp = fp |
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def __getattr__(self, key): |
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return getattr(self.fp, key) |
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def close(self): |
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try: |
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self.fp.close() |
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except: pass |
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def write(self, s): |
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try: |
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# This is workaround for "Not enough space" error on |
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# writing large size of data to console. |
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limit = 16000 |
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l = len(s) |
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start = 0 |
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while start < l: |
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end = start + limit |
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self.fp.write(s[start:end]) |
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start = end |
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except IOError, inst: |
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if inst.errno != 0: raise |
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self.close() |
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raise IOError(errno.EPIPE, 'Broken pipe') |
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def flush(self): |
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try: |
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return self.fp.flush() |
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except IOError, inst: |
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if inst.errno != errno.EINVAL: raise |
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self.close() |
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raise IOError(errno.EPIPE, 'Broken pipe') |
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sys.stdout = winstdout(sys.stdout) |
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def _is_win_9x(): |
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'''return true if run on windows 95, 98 or me.''' |
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try: |
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return sys.getwindowsversion()[3] == 1 |
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except AttributeError: |
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return 'command' in os.environ.get('comspec', '') |
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def openhardlinks(): |
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return not _is_win_9x and "win32api" in locals() |
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def system_rcpath(): |
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try: |
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return system_rcpath_win32() |
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except: |
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return [r'c:\mercurial\mercurial.ini'] |
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def user_rcpath(): |
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'''return os-specific hgrc search path to the user dir''' |
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try: |
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path = user_rcpath_win32() |
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except: |
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home = os.path.expanduser('~') |
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path = [os.path.join(home, 'mercurial.ini'), |
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os.path.join(home, '.hgrc')] |
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userprofile = os.environ.get('USERPROFILE') |
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if userprofile: |
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path.append(os.path.join(userprofile, 'mercurial.ini')) |
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path.append(os.path.join(userprofile, '.hgrc')) |
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return path |
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def parse_patch_output(output_line): |
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"""parses the output produced by patch and returns the file name""" |
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pf = output_line[14:] |
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if pf[0] == '`': |
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pf = pf[1:-1] # Remove the quotes |
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return pf |
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|
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def sshargs(sshcmd, host, user, port): |
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'''Build argument list for ssh or Plink''' |
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pflag = 'plink' in sshcmd.lower() and '-P' or '-p' |
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args = user and ("%s@%s" % (user, host)) or host |
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return port and ("%s %s %s" % (args, pflag, port)) or args |
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|
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def testpid(pid): |
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'''return False if pid dead, True if running or not known''' |
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return True |
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def set_flags(f, l, x): |
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pass |
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113 |
def set_binary(fd): |
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114 |
# When run without console, pipes may expose invalid |
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# fileno(), usually set to -1. |
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116 |
if hasattr(fd, 'fileno') and fd.fileno() >= 0: |
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117 |
msvcrt.setmode(fd.fileno(), os.O_BINARY) |
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118 |
|
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119 |
def pconvert(path): |
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return '/'.join(path.split(os.sep)) |
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121 |
|
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122 |
def localpath(path): |
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return path.replace('/', '\\') |
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124 |
|
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125 |
def normpath(path): |
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return pconvert(os.path.normpath(path)) |
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127 |
|
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128 |
def samestat(s1, s2): |
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return False |
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130 |
|
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# A sequence of backslashes is special iff it precedes a double quote: |
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# - if there's an even number of backslashes, the double quote is not |
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# quoted (i.e. it ends the quoted region) |
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# - if there's an odd number of backslashes, the double quote is quoted |
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# - in both cases, every pair of backslashes is unquoted into a single |
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# backslash |
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# (See http://msdn2.microsoft.com/en-us/library/a1y7w461.aspx ) |
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# So, to quote a string, we must surround it in double quotes, double |
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# the number of backslashes that preceed double quotes and add another |
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# backslash before every double quote (being careful with the double |
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# quote we've appended to the end) |
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_quotere = None |
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143 |
def shellquote(s): |
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global _quotere |
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if _quotere is None: |
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_quotere = re.compile(r'(\\*)("|\\$)') |
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return '"%s"' % _quotere.sub(r'\1\1\\\2', s) |
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148 |
|
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149 |
def quotecommand(cmd): |
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"""Build a command string suitable for os.popen* calls.""" |
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# The extra quotes are needed because popen* runs the command |
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# through the current COMSPEC. cmd.exe suppress enclosing quotes. |
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return '"' + cmd + '"' |
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154 |
|
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155 |
def popen(command, mode='r'): |
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# Work around "popen spawned process may not write to stdout |
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157 |
# under windows" |
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# http://bugs.python.org/issue1366 |
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command += " 2> %s" % nulldev |
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return os.popen(quotecommand(command), mode) |
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161 |
|
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162 |
def explain_exit(code): |
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return _("exited with status %d") % code, code |
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164 |
|
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# if you change this stub into a real check, please try to implement the |
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# username and groupname functions above, too. |
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167 |
def isowner(fp, st=None): |
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return True |
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169 |
|
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170 |
def find_exe(command): |
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'''Find executable for command searching like cmd.exe does. |
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If command is a basename then PATH is searched for command. |
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PATH isn't searched if command is an absolute or relative path. |
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174 |
An extension from PATHEXT is found and added if not present. |
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If command isn't found None is returned.''' |
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176 |
pathext = os.environ.get('PATHEXT', '.COM;.EXE;.BAT;.CMD') |
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pathexts = [ext for ext in pathext.lower().split(os.pathsep)] |
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178 |
if os.path.splitext(command)[1].lower() in pathexts: |
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179 |
pathexts = [''] |
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180 |
|
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181 |
def findexisting(pathcommand): |
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'Will append extension (if needed) and return existing file' |
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183 |
for ext in pathexts: |
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184 |
executable = pathcommand + ext |
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185 |
if os.path.exists(executable): |
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186 |
return executable |
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187 |
return None |
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188 |
|
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189 |
if os.sep in command: |
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190 |
return findexisting(command) |
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191 |
|
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192 |
for path in os.environ.get('PATH', '').split(os.pathsep): |
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193 |
executable = findexisting(os.path.join(path, command)) |
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194 |
if executable is not None: |
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195 |
return executable |
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196 |
return None |
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197 |
|
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198 |
def set_signal_handler(): |
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199 |
try: |
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200 |
set_signal_handler_win32() |
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201 |
except NameError: |
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202 |
pass |
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203 |
|
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204 |
def statfiles(files): |
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'''Stat each file in files and yield stat or None if file does not exist. |
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206 |
Cluster and cache stat per directory to minimize number of OS stat calls.''' |
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207 |
ncase = os.path.normcase |
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208 |
sep = os.sep |
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209 |
dircache = {} # dirname -> filename -> status | None if file does not exist |
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210 |
for nf in files: |
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211 |
nf = ncase(nf) |
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pos = nf.rfind(sep) |
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213 |
if pos == -1: |
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214 |
dir, base = '.', nf |
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215 |
else: |
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216 |
dir, base = nf[:pos+1], nf[pos+1:] |
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217 |
cache = dircache.get(dir, None) |
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218 |
if cache is None: |
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219 |
try: |
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220 |
dmap = dict([(ncase(n), s) |
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221 |
for n, k, s in osutil.listdir(dir, True)]) |
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222 |
except OSError, err: |
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223 |
# handle directory not found in Python version prior to 2.5 |
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224 |
# Python <= 2.4 returns native Windows code 3 in errno |
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225 |
# Python >= 2.5 returns ENOENT and adds winerror field |
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226 |
# EINVAL is raised if dir is not a directory. |
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227 |
if err.errno not in (3, errno.ENOENT, errno.EINVAL, |
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228 |
errno.ENOTDIR): |
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229 |
raise |
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230 |
dmap = {} |
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231 |
cache = dircache.setdefault(dir, dmap) |
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232 |
yield cache.get(base, None) |
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233 |
|
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234 |
def getuser(): |
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235 |
'''return name of current user''' |
7949
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raise error.Abort(_('user name not available - set USERNAME ' |
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'environment variable')) |
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|
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def username(uid=None): |
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"""Return the name of the user with the given uid. |
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|
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If uid is None, return the name of the current user.""" |
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return None |
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|
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def groupname(gid=None): |
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"""Return the name of the group with the given gid. |
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|
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If gid is None, return the name of the current group.""" |
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return None |
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|
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def _removedirs(name): |
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"""special version of os.removedirs that does not remove symlinked |
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directories or junction points if they actually contain files""" |
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if osutil.listdir(name): |
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return |
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os.rmdir(name) |
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head, tail = os.path.split(name) |
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if not tail: |
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head, tail = os.path.split(head) |
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while head and tail: |
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try: |
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if osutil.listdir(name): |
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return |
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os.rmdir(head) |
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except: |
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break |
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head, tail = os.path.split(head) |
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|
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def unlink(f): |
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"""unlink and remove the directory if it is empty""" |
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os.unlink(f) |
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# try removing directories that might now be empty |
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try: |
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_removedirs(os.path.dirname(f)) |
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except OSError: |
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pass |
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|
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try: |
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# override functions with win32 versions if possible |
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from win32 import * |
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except ImportError: |
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pass |