old_contents: #/usr/bin/env python
  # -*- coding: utf-8 -*-
  
  # The MIT License (MIT)
  #
  # Copyright (c) 2015 Alex Headley <aheadley@waysaboutstuff.com>
  #
  # Permission is hereby granted, free of charge, to any person obtaining a copy
  # of this software and associated documentation files (the "Software"), to deal
  # in the Software without restriction, including without limitation the rights
  # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  # copies of the Software, and to permit persons to whom the Software is
  # furnished to do so, subject to the following conditions:
  #
  # The above copyright notice and this permission notice shall be included in all
  # copies or substantial portions of the Software.
  #
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  # SOFTWARE.
  
  from naabal.util.helpers import big_open
  
  if __name__ == '__main__':
      import argparse
      import os
      import fnmatch
  
      parser = argparse.ArgumentParser(prog='big-extract.py',
          description='Extract contents of a .big file to a directory')
      parser.add_argument('-i', '--include-matching')
      parser.add_argument('filename')
      parser.add_argument('destination', default=os.getcwd(), nargs='?')
      args = parser.parse_args()
  
      with big_open(args.filename) as bigfile:
          bigfile.load()
          if args.include_matching:
              member_list = [m for m in bigfile.get_members() if fnmatch.fnmatch(m.name, args.include_matching)]
          else:
              member_list = None
          bigfile.extract_all(member_list, args.destination)
  
new_contents: #/usr/bin/env python
  # -*- coding: utf-8 -*-
  
  # The MIT License (MIT)
  #
  # Copyright (c) 2015 Alex Headley <aheadley@waysaboutstuff.com>
  #
  # Permission is hereby granted, free of charge, to any person obtaining a copy
  # of this software and associated documentation files (the "Software"), to deal
  # in the Software without restriction, including without limitation the rights
  # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  # copies of the Software, and to permit persons to whom the Software is
  # furnished to do so, subject to the following conditions:
  #
  # The above copyright notice and this permission notice shall be included in all
  # copies or substantial portions of the Software.
  #
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  # SOFTWARE.
  
  from naabal.util.helpers import big_open
  
  if __name__ == '__main__':
      import argparse
      import os
      import fnmatch
  
      parser = argparse.ArgumentParser(prog='big-extract.py',
          description='Extract contents of a .big file to a directory')
      parser.add_argument('-i', '--include-matching')
      parser.add_argument('filename')
      parser.add_argument('destination', default=os.getcwd(), nargs='?')
      args = parser.parse_args()
  
      with big_open(args.filename) as bigfile:
          bigfile.load()
          if args.include_matching:
              member_list = [m for m in bigfile.get_members() if fnmatch.fnmatch(m.name, args.include_matching)]
          else:
              member_list = bigfile.get_members()
          for member in member_list:
              bigfile.extract(member, args.destination)
              print 'Extracted {size:8d} bytes: {name}'.format(size=member.real_size, name=member.name)
  
subject: add progress tracking to extract example script