2009-11-25 Eric Seidel <eric@webkit.org>

2009-11-25  Eric Seidel  <eric@webkit.org>

        Reviewed by Adam Barth.

        Centralize required argument parsing in Command
        https://bugs.webkit.org/show_bug.cgi?id=31872

        * Scripts/modules/commands/download.py: remove custom required arg message.
        * Scripts/modules/commands/upload.py: ditto.
        * Scripts/modules/multicommandtool.py:
         - Add _parse_required_arguments.
         - Pass program name off to OptionParser.
         - Add name() for access to tool name.
         - Add check_arguments_and_execute and make it return a return code.
         - Replace a couple uses of + with %.
        * Scripts/modules/multicommandtool_unittest.py: test _parse_required_arguments

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@51383 268f45cc-cd09-0410-ab3c-d52691b4dbfc