--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/srcanamdw/codescanner/pyinstaller/source/linux/bkfile.py Thu Feb 18 12:29:02 2010 +0530
@@ -0,0 +1,71 @@
+# Copyright (C) 2005, Giovanni Bajo
+# Based on previous work under copyright (c) 2002 McMillan Enterprises, Inc.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+
+_orig_open = open
+
+class _BkFile:
+ def __init__(self, file, mode, bufsize):
+ import os
+ self.__filename = file
+ self.__backup = file + '~'
+ try:
+ os.unlink(self.__backup)
+ except os.error:
+ pass
+ try:
+ os.rename(file, self.__backup)
+ except os.error:
+ self.__backup = None
+ self.__file = _orig_open(file, mode, bufsize)
+ self.closed = self.__file.closed
+ self.fileno = self.__file.fileno
+ self.flush = self.__file.flush
+ self.isatty = self.__file.isatty
+ self.mode = self.__file.mode
+ self.name = self.__file.name
+ self.read = self.__file.read
+ self.readinto = self.__file.readinto
+ self.readline = self.__file.readline
+ self.readlines = self.__file.readlines
+ self.seek = self.__file.seek
+ self.softspace = self.__file.softspace
+ self.tell = self.__file.tell
+ self.truncate = self.__file.truncate
+ self.write = self.__file.write
+ self.writelines = self.__file.writelines
+
+ def close(self):
+ self.__file.close()
+ if self.__backup is None:
+ return
+ try:
+ from cmp import do_cmp
+ except:
+ from filecmp import cmp
+ do_cmp = cmp
+ # don't use cmp.cmp because of NFS bugs :-( and
+ # anyway, the stat mtime values differ so do_cmp will
+ # most likely be called anyway
+ if do_cmp(self.__backup, self.__filename):
+ import os
+ os.unlink(self.__filename)
+ os.rename(self.__backup, self.__filename)
+
+def open(file, mode = 'r', bufsize = -1):
+ if 'w' not in mode:
+ return _orig_open(file, mode, bufsize)
+ return _BkFile(file, mode, bufsize)