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      1 # Copyright (c) 2013 The Chromium Authors. All rights reserved.
      2 # Use of this source code is governed by a BSD-style license that can be
      3 # found in the LICENSE file.
      4 
      5 import os
      6 import sys
      7 
      8 
      9 def IsAvailable():
     10   _winreg = None
     11   if sys.platform == 'win32':
     12     import _winreg
     13   elif sys.platform == 'cygwin':
     14     try:
     15       import cygwinreg as _winreg
     16     except ImportError:
     17       pass  # If not available, be safe and write 0.
     18 
     19   if not _winreg:
     20     return False
     21 
     22   try:
     23     val = _winreg.QueryValue(_winreg.HKEY_CURRENT_USER,
     24                              'Software\\Chromium\\split_link_installed')
     25     return os.path.exists(val)
     26   except WindowsError:
     27     pass
     28 
     29   return False
     30 
     31 
     32 def main():
     33   # Can be called from gyp to set variable.
     34   if IsAvailable():
     35     sys.stdout.write('1')
     36   else:
     37     print >> sys.stderr, "Couldn't find split_link installation."
     38     print >> sys.stderr, ('Run python tools\\win\\split_link\\'
     39                           'install_split_link.py from an elevated Visual '
     40                           'Studio Command Prompt to install.')
     41     sys.stdout.write('0')
     42     return 1
     43 
     44 
     45 if __name__ == '__main__':
     46   sys.exit(main())
     47