mercurial/windows.py
author Frank Kingswood <frank@kingswood-consulting.co.uk>
Thu, 18 Jun 2009 10:39:04 +0100
changeset 8829 ce4b92f5cea7
parent 8778 c5f36402daad
child 8930 ae275ad46bd0
permissions -rw-r--r--
convert: Make P4 conversion cope with keywords, binary files and symbolic links. Convert now handles errors from p4 during conversion more gracefully. If keyword expansion is enabled in a P4 file then keywords will be unexpanded in hg. Added testcase for p4 filetypes and keyword (un)expansion. This testcase ignores UTF and Apple files to avoid binary data. Edited by pmezard: fixed collation issue on OSX
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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(object):
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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 globals()
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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 filename"""
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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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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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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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def set_binary(fd):
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    # When run without console, pipes may expose invalid
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    # fileno(), usually set to -1.
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    if hasattr(fd, 'fileno') and fd.fileno() >= 0:
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        msvcrt.setmode(fd.fileno(), os.O_BINARY)
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def pconvert(path):
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    return '/'.join(path.split(os.sep))
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def localpath(path):
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    return path.replace('/', '\\')
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def normpath(path):
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    return pconvert(os.path.normpath(path))
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def samestat(s1, s2):
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    return False
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# A sequence of backslashes is special iff it precedes a double quote:
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   132
# - if there's an even number of backslashes, the double quote is not
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   133
#   quoted (i.e. it ends the quoted region)
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   134
# - if there's an odd number of backslashes, the double quote is quoted
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   135
# - in both cases, every pair of backslashes is unquoted into a single
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parents:
diff changeset
   136
#   backslash
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   137
# (See http://msdn2.microsoft.com/en-us/library/a1y7w461.aspx )
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   138
# So, to quote a string, we must surround it in double quotes, double
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   139
# the number of backslashes that preceed double quotes and add another
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   140
# backslash before every double quote (being careful with the double
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   141
# quote we've appended to the end)
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   142
_quotere = None
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   143
def shellquote(s):
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   144
    global _quotere
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   145
    if _quotere is None:
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   146
        _quotere = re.compile(r'(\\*)("|\\$)')
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   147
    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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   150
    """Build a command string suitable for os.popen* calls."""
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   151
    # The extra quotes are needed because popen* runs the command
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   152
    # through the current COMSPEC. cmd.exe suppress enclosing quotes.
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   153
    return '"' + cmd + '"'
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   154
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   155
def popen(command, mode='r'):
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   156
    # Work around "popen spawned process may not write to stdout
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   157
    # under windows"
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   158
    # http://bugs.python.org/issue1366
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   159
    command += " 2> %s" % nulldev
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   160
    return os.popen(quotecommand(command), mode)
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   161
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   162
def explain_exit(code):
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   163
    return _("exited with status %d") % code, code
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parents:
diff changeset
   164
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   165
# if you change this stub into a real check, please try to implement the
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   166
# username and groupname functions above, too.
8657
3fa92c618624 posix: do not use fstat in isowner
Martin Geisler <mg@lazybytes.net>
parents: 8614
diff changeset
   167
def isowner(st):
7890
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   168
    return True
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   169
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   170
def find_exe(command):
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   171
    '''Find executable for command searching like cmd.exe does.
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   172
    If command is a basename then PATH is searched for command.
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   173
    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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   175
    If command isn't found None is returned.'''
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diff changeset
   176
    pathext = os.environ.get('PATHEXT', '.COM;.EXE;.BAT;.CMD')
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   177
    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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   182
        'Will append extension (if needed) and return existing file'
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parents:
diff changeset
   183
        for ext in pathexts:
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parents:
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   184
            executable = pathcommand + ext
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parents:
diff changeset
   185
            if os.path.exists(executable):
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diff changeset
   186
                return executable
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   187
        return None
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parents:
diff changeset
   188
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parents:
diff changeset
   189
    if os.sep in command:
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parents:
diff changeset
   190
        return findexisting(command)
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Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   191
e710f0f592b2 util: split out posix, windows, and win32 modules
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parents:
diff changeset
   192
    for path in os.environ.get('PATH', '').split(os.pathsep):
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parents:
diff changeset
   193
        executable = findexisting(os.path.join(path, command))
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parents:
diff changeset
   194
        if executable is not None:
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diff changeset
   195
            return executable
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parents:
diff changeset
   196
    return None
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   197
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   198
def set_signal_handler():
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parents:
diff changeset
   199
    try:
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   200
        set_signal_handler_win32()
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parents:
diff changeset
   201
    except NameError:
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   202
        pass
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Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   203
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parents:
diff changeset
   204
def statfiles(files):
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parents:
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   205
    '''Stat each file in files and yield stat or None if file does not exist.
e710f0f592b2 util: split out posix, windows, and win32 modules
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parents:
diff changeset
   206
    Cluster and cache stat per directory to minimize number of OS stat calls.'''
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parents:
diff changeset
   207
    ncase = os.path.normcase
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Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   208
    sep   = os.sep
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Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   209
    dircache = {} # dirname -> filename -> status | None if file does not exist
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parents:
diff changeset
   210
    for nf in files:
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parents:
diff changeset
   211
        nf  = ncase(nf)
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parents:
diff changeset
   212
        pos = nf.rfind(sep)
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parents:
diff changeset
   213
        if pos == -1:
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Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   214
            dir, base = '.', nf
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Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   215
        else:
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parents:
diff changeset
   216
            dir, base = nf[:pos+1], nf[pos+1:]
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parents:
diff changeset
   217
        cache = dircache.get(dir, None)
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Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   218
        if cache is None:
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   219
            try:
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   220
                dmap = dict([(ncase(n), s)
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   221
                    for n, k, s in osutil.listdir(dir, True)])
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   222
            except OSError, err:
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   223
                # handle directory not found in Python version prior to 2.5
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   224
                # Python <= 2.4 returns native Windows code 3 in errno
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   225
                # Python >= 2.5 returns ENOENT and adds winerror field
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   226
                # EINVAL is raised if dir is not a directory.
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   227
                if err.errno not in (3, errno.ENOENT, errno.EINVAL,
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   228
                                     errno.ENOTDIR):
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   229
                    raise
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   230
                dmap = {}
e710f0f592b2 util: split out posix, windows, and win32 modules
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parents:
diff changeset
   231
            cache = dircache.setdefault(dir, dmap)
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parents:
diff changeset
   232
        yield cache.get(base, None)
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   233
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   234
def getuser():
e710f0f592b2 util: split out posix, windows, and win32 modules
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parents:
diff changeset
   235
    '''return name of current user'''
7949
443c0c8636ac windows: get Abort from error
Matt Mackall <mpm@selenic.com>
parents: 7934
diff changeset
   236
    raise error.Abort(_('user name not available - set USERNAME '
7934
ec4784bb7d75 windows: break import cycle with util
Martin Geisler <mg@daimi.au.dk>
parents: 7933
diff changeset
   237
                       'environment variable'))
7890
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   238
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   239
def username(uid=None):
e710f0f592b2 util: split out posix, windows, and win32 modules
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parents:
diff changeset
   240
    """Return the name of the user with the given uid.
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parents:
diff changeset
   241
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   242
    If uid is None, return the name of the current user."""
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parents:
diff changeset
   243
    return None
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   244
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   245
def groupname(gid=None):
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   246
    """Return the name of the group with the given gid.
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parents:
diff changeset
   247
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   248
    If gid is None, return the name of the current group."""
e710f0f592b2 util: split out posix, windows, and win32 modules
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parents:
diff changeset
   249
    return None
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   250
8364
fa901423ac23 windows: avoid deleting non-empty reparse points
Henrik Stuart <henrik.stuart@edlund.dk>
parents: 8330
diff changeset
   251
def _removedirs(name):
fa901423ac23 windows: avoid deleting non-empty reparse points
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parents: 8330
diff changeset
   252
    """special version of os.removedirs that does not remove symlinked
fa901423ac23 windows: avoid deleting non-empty reparse points
Henrik Stuart <henrik.stuart@edlund.dk>
parents: 8330
diff changeset
   253
    directories or junction points if they actually contain files"""
fa901423ac23 windows: avoid deleting non-empty reparse points
Henrik Stuart <henrik.stuart@edlund.dk>
parents: 8330
diff changeset
   254
    if osutil.listdir(name):
fa901423ac23 windows: avoid deleting non-empty reparse points
Henrik Stuart <henrik.stuart@edlund.dk>
parents: 8330
diff changeset
   255
        return
fa901423ac23 windows: avoid deleting non-empty reparse points
Henrik Stuart <henrik.stuart@edlund.dk>
parents: 8330
diff changeset
   256
    os.rmdir(name)
fa901423ac23 windows: avoid deleting non-empty reparse points
Henrik Stuart <henrik.stuart@edlund.dk>
parents: 8330
diff changeset
   257
    head, tail = os.path.split(name)
fa901423ac23 windows: avoid deleting non-empty reparse points
Henrik Stuart <henrik.stuart@edlund.dk>
parents: 8330
diff changeset
   258
    if not tail:
fa901423ac23 windows: avoid deleting non-empty reparse points
Henrik Stuart <henrik.stuart@edlund.dk>
parents: 8330
diff changeset
   259
        head, tail = os.path.split(head)
fa901423ac23 windows: avoid deleting non-empty reparse points
Henrik Stuart <henrik.stuart@edlund.dk>
parents: 8330
diff changeset
   260
    while head and tail:
fa901423ac23 windows: avoid deleting non-empty reparse points
Henrik Stuart <henrik.stuart@edlund.dk>
parents: 8330
diff changeset
   261
        try:
fa901423ac23 windows: avoid deleting non-empty reparse points
Henrik Stuart <henrik.stuart@edlund.dk>
parents: 8330
diff changeset
   262
            if osutil.listdir(name):
fa901423ac23 windows: avoid deleting non-empty reparse points
Henrik Stuart <henrik.stuart@edlund.dk>
parents: 8330
diff changeset
   263
                return
fa901423ac23 windows: avoid deleting non-empty reparse points
Henrik Stuart <henrik.stuart@edlund.dk>
parents: 8330
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   264
            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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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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7890
e710f0f592b2 util: split out posix, windows, and win32 modules
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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
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expandglobs = True