1 # Copyright 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 """Uninstalls Chrome. 6 7 This script reads the uninstall command from registry, calls it, and verifies 8 the output status code. 9 """ 10 11 import _winreg 12 import optparse 13 import subprocess 14 import sys 15 16 17 def main(): 18 parser = optparse.OptionParser(description='Uninstall Chrome.') 19 parser.add_option('--system-level', action='store_true', dest='system_level', 20 default=False, help='Uninstall Chrome at system level.') 21 parser.add_option('--chrome-long-name', default='Google Chrome', 22 help='Google Chrome or Chromium)') 23 parser.add_option('--interactive', action='store_true', dest='interactive', 24 default=False, help='Ask before uninstalling Chrome.') 25 parser.add_option('--no-error-if-absent', action='store_true', 26 dest='no_error_if_absent', default=False, 27 help='No error if the registry key for uninstalling Chrome ' 28 'is absent.') 29 options, _ = parser.parse_args() 30 31 # TODO(sukolsak): Add support for uninstalling MSI-based Chrome installs when 32 # we support testing MSIs. 33 if options.system_level: 34 root_key = _winreg.HKEY_LOCAL_MACHINE 35 else: 36 root_key = _winreg.HKEY_CURRENT_USER 37 sub_key = ('SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\%s' % 38 options.chrome_long_name) 39 # Query the key. It will throw a WindowsError if the key doesn't exist. 40 try: 41 key = _winreg.OpenKey(root_key, sub_key, 0, _winreg.KEY_QUERY_VALUE) 42 except WindowsError: 43 if options.no_error_if_absent: 44 return 0 45 raise KeyError('Registry key %s\\%s is missing' % ( 46 'HKEY_LOCAL_MACHINE' if options.system_level else 'HKEY_CURRENT_USER', 47 sub_key)) 48 if options.interactive: 49 prompt = ('Warning: This will uninstall %s at %s. Do you want to continue? ' 50 '(y/N) ' % (options.chrome_long_name, 51 'system-level' if 52 options.system_level else 'user-level')) 53 if raw_input(prompt).strip() != 'y': 54 print >> sys.stderr, 'User aborted' 55 return 1 56 uninstall_string, _ = _winreg.QueryValueEx(key, 'UninstallString') 57 exit_status = subprocess.call(uninstall_string + ' --force-uninstall', 58 shell=True) 59 # The exit status for successful uninstallation of Chrome is 19 (see 60 # chrome/installer/util/util_constants.h). 61 if exit_status != 19: 62 raise Exception('Could not uninstall Chrome. The installer exited with ' 63 'status %d.' % exit_status) 64 return 0 65 66 67 if __name__ == '__main__': 68 sys.exit(main()) 69
