--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mercurial/windows.py	Thu Mar 26 13:54:44 2009 -0500
@@ -0,0 +1,266 @@
+"""
+windows.py - Windows utility function implementations for Mercurial
+
+ Copyright 2005-2009 Matt Mackall <mpm@selenic.com> and others
+
+This software may be used and distributed according to the terms of
+the GNU General Public License version 2, incorporated herein by
+reference.
+"""
+
+import msvcrt, sys, os
+nulldev = 'NUL:'
+
+umask = 002
+
+class winstdout:
+    '''stdout on windows misbehaves if sent through a pipe'''
+
+    def __init__(self, fp):
+        self.fp = fp
+
+    def __getattr__(self, key):
+        return getattr(self.fp, key)
+
+    def close(self):
+        try:
+            self.fp.close()
+        except: pass
+
+    def write(self, s):
+        try:
+            # This is workaround for "Not enough space" error on
+            # writing large size of data to console.
+            limit = 16000
+            l = len(s)
+            start = 0
+            while start < l:
+                end = start + limit
+                self.fp.write(s[start:end])
+                start = end
+        except IOError, inst:
+            if inst.errno != 0: raise
+            self.close()
+            raise IOError(errno.EPIPE, 'Broken pipe')
+
+    def flush(self):
+        try:
+            return self.fp.flush()
+        except IOError, inst:
+            if inst.errno != errno.EINVAL: raise
+            self.close()
+            raise IOError(errno.EPIPE, 'Broken pipe')
+
+sys.stdout = winstdout(sys.stdout)
+
+def _is_win_9x():
+    '''return true if run on windows 95, 98 or me.'''
+    try:
+        return sys.getwindowsversion()[3] == 1
+    except AttributeError:
+        return 'command' in os.environ.get('comspec', '')
+
+def openhardlinks():
+    return not _is_win_9x and "win32api" in locals()
+
+def system_rcpath():
+    try:
+        return system_rcpath_win32()
+    except:
+        return [r'c:\mercurial\mercurial.ini']
+
+def user_rcpath():
+    '''return os-specific hgrc search path to the user dir'''
+    try:
+        path = user_rcpath_win32()
+    except:
+        home = os.path.expanduser('~')
+        path = [os.path.join(home, 'mercurial.ini'),
+                os.path.join(home, '.hgrc')]
+    userprofile = os.environ.get('USERPROFILE')
+    if userprofile:
+        path.append(os.path.join(userprofile, 'mercurial.ini'))
+        path.append(os.path.join(userprofile, '.hgrc'))
+    return path
+
+def parse_patch_output(output_line):
+    """parses the output produced by patch and returns the file name"""
+    pf = output_line[14:]
+    if pf[0] == '`':
+        pf = pf[1:-1] # Remove the quotes
+    return pf
+
+def sshargs(sshcmd, host, user, port):
+    '''Build argument list for ssh or Plink'''
+    pflag = 'plink' in sshcmd.lower() and '-P' or '-p'
+    args = user and ("%s@%s" % (user, host)) or host
+    return port and ("%s %s %s" % (args, pflag, port)) or args
+
+def testpid(pid):
+    '''return False if pid dead, True if running or not known'''
+    return True
+
+def set_flags(f, l, x):
+    pass
+
+def set_binary(fd):
+    # When run without console, pipes may expose invalid
+    # fileno(), usually set to -1.
+    if hasattr(fd, 'fileno') and fd.fileno() >= 0:
+        msvcrt.setmode(fd.fileno(), os.O_BINARY)
+
+def pconvert(path):
+    return '/'.join(path.split(os.sep))
+
+def localpath(path):
+    return path.replace('/', '\\')
+
+def normpath(path):
+    return pconvert(os.path.normpath(path))
+
+def samestat(s1, s2):
+    return False
+
+# A sequence of backslashes is special iff it precedes a double quote:
+# - if there's an even number of backslashes, the double quote is not
+#   quoted (i.e. it ends the quoted region)
+# - if there's an odd number of backslashes, the double quote is quoted
+# - in both cases, every pair of backslashes is unquoted into a single
+#   backslash
+# (See http://msdn2.microsoft.com/en-us/library/a1y7w461.aspx )
+# So, to quote a string, we must surround it in double quotes, double
+# the number of backslashes that preceed double quotes and add another
+# backslash before every double quote (being careful with the double
+# quote we've appended to the end)
+_quotere = None
+def shellquote(s):
+    global _quotere
+    if _quotere is None:
+        _quotere = re.compile(r'(\\*)("|\\$)')
+    return '"%s"' % _quotere.sub(r'\1\1\\\2', s)
+
+def quotecommand(cmd):
+    """Build a command string suitable for os.popen* calls."""
+    # The extra quotes are needed because popen* runs the command
+    # through the current COMSPEC. cmd.exe suppress enclosing quotes.
+    return '"' + cmd + '"'
+
+def popen(command, mode='r'):
+    # Work around "popen spawned process may not write to stdout
+    # under windows"
+    # http://bugs.python.org/issue1366
+    command += " 2> %s" % nulldev
+    return os.popen(quotecommand(command), mode)
+
+def explain_exit(code):
+    return _("exited with status %d") % code, code
+
+# if you change this stub into a real check, please try to implement the
+# username and groupname functions above, too.
+def isowner(fp, st=None):
+    return True
+
+def find_exe(command):
+    '''Find executable for command searching like cmd.exe does.
+    If command is a basename then PATH is searched for command.
+    PATH isn't searched if command is an absolute or relative path.
+    An extension from PATHEXT is found and added if not present.
+    If command isn't found None is returned.'''
+    pathext = os.environ.get('PATHEXT', '.COM;.EXE;.BAT;.CMD')
+    pathexts = [ext for ext in pathext.lower().split(os.pathsep)]
+    if os.path.splitext(command)[1].lower() in pathexts:
+        pathexts = ['']
+
+    def findexisting(pathcommand):
+        'Will append extension (if needed) and return existing file'
+        for ext in pathexts:
+            executable = pathcommand + ext
+            if os.path.exists(executable):
+                return executable
+        return None
+
+    if os.sep in command:
+        return findexisting(command)
+
+    for path in os.environ.get('PATH', '').split(os.pathsep):
+        executable = findexisting(os.path.join(path, command))
+        if executable is not None:
+            return executable
+    return None
+
+def set_signal_handler():
+    try:
+        set_signal_handler_win32()
+    except NameError:
+        pass
+
+def statfiles(files):
+    '''Stat each file in files and yield stat or None if file does not exist.
+    Cluster and cache stat per directory to minimize number of OS stat calls.'''
+    ncase = os.path.normcase
+    sep   = os.sep
+    dircache = {} # dirname -> filename -> status | None if file does not exist
+    for nf in files:
+        nf  = ncase(nf)
+        pos = nf.rfind(sep)
+        if pos == -1:
+            dir, base = '.', nf
+        else:
+            dir, base = nf[:pos+1], nf[pos+1:]
+        cache = dircache.get(dir, None)
+        if cache is None:
+            try:
+                dmap = dict([(ncase(n), s)
+                    for n, k, s in osutil.listdir(dir, True)])
+            except OSError, err:
+                # handle directory not found in Python version prior to 2.5
+                # Python <= 2.4 returns native Windows code 3 in errno
+                # Python >= 2.5 returns ENOENT and adds winerror field
+                # EINVAL is raised if dir is not a directory.
+                if err.errno not in (3, errno.ENOENT, errno.EINVAL,
+                                     errno.ENOTDIR):
+                    raise
+                dmap = {}
+            cache = dircache.setdefault(dir, dmap)
+        yield cache.get(base, None)
+
+def getuser():
+    '''return name of current user'''
+    raise Abort(_('user name not available - set USERNAME '
+                  'environment variable'))
+
+def expand_glob(pats):
+    '''On Windows, expand the implicit globs in a list of patterns'''
+    ret = []
+    for p in pats:
+        kind, name = patkind(p, None)
+        if kind is None:
+            globbed = glob.glob(name)
+            if globbed:
+                ret.extend(globbed)
+                continue
+            # if we couldn't expand the glob, just keep it around
+        ret.append(p)
+    return ret
+
+def username(uid=None):
+    """Return the name of the user with the given uid.
+
+    If uid is None, return the name of the current user."""
+    return None
+
+def groupname(gid=None):
+    """Return the name of the group with the given gid.
+
+    If gid is None, return the name of the current group."""
+    return None
+
+posixfile = file
+try:
+    # override functions with win32 versions if possible
+    from util_win32 import *
+    if not _is_win_9x():
+        posixfile = posixfile_nt
+except ImportError:
+    pass
+