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      1 #!/usr/bin/perl -w
      2 # Copyright (C) 2010 Google Inc. All rights reserved.
      3 #
      4 # Redistribution and use in source and binary forms, with or without
      5 # modification, are permitted provided that the following conditions
      6 # are met:
      7 #
      8 # 1.  Redistributions of source code must retain the above copyright
      9 #     notice, this list of conditions and the following disclaimer.
     10 # 2.  Redistributions in binary form must reproduce the above copyright
     11 #     notice, this list of conditions and the following disclaimer in the
     12 #     documentation and/or other materials provided with the distribution.
     13 # 3.  Neither the name of Apple Inc. ("Apple") nor the names of
     14 #     its contributors may be used to endorse or promote products derived
     15 #     from this software without specific prior written permission.
     16 #
     17 # THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     18 # EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     19 # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     20 # DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     21 # DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     22 # (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     23 # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     24 # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27 
     28 use strict;
     29 
     30 use FindBin;
     31 use Getopt::Long;
     32 
     33 use lib $FindBin::Bin;
     34 use VCSUtils;
     35 
     36 sub checkPythonVersion()
     37 {
     38     # Will exit 0 if Python is 2.5 or greater, non-zero otherwise.
     39     `python -c "import sys;sys.exit(sys.version_info[:2] < (2,5))"`;
     40     return exitStatus($?) == 0;
     41 }
     42 
     43 sub main()
     44 {
     45     my $checkOnly = 0;
     46     my $showHelp = 0;
     47     my $getOptionsResult = GetOptions(
     48         'check-only!' => \$checkOnly,
     49         'help|h' => \$showHelp,
     50     );
     51     if (!$getOptionsResult || $showHelp) {
     52         print STDERR <<HELP;
     53 Usage: $0 [options]
     54   --check-only        Check python version only.
     55   -h|--help           Show this help message.
     56 HELP
     57         return 1;
     58     }
     59     # Congrats, your Python is fine.
     60     return 0 if checkPythonVersion();
     61 
     62     return 1 if $checkOnly;
     63 
     64     print "Your Python version is insufficient to run WebKit's Python code.  Please update.\n";
     65     print "See http://trac.webkit.org/wiki/PythonGuidelines for more info.\n";
     66     return 1;
     67 }
     68 
     69 exit(main());
     70