Synnefo » ./kamaki

#!/usr/bin/env python

# Copyright 2012 GRNET S.A. All rights reserved.

#

# Redistribution and use in source and binary forms, with or

# without modification, are permitted provided that the following

# conditions are met:

#

#   1. Redistributions of source code must retain the above

#      copyright notice, this list of conditions and the following

#      disclaimer.

#

#   2. Redistributions in binary form must reproduce the above

#      copyright notice, this list of conditions and the following

#      disclaimer in the documentation and/or other materials

#      provided with the distribution.

#

# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS

# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR

# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF

# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED

# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN

# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

# POSSIBILITY OF SUCH DAMAGE.

#

# The views and conclusions contained in the software and

# documentation are those of the authors and should not be

# interpreted as representing official policies, either expressed

# or implied, of GRNET S.A.

from os.path import exists

def order_free_contains(containing, contained):

        superset = containing.split()

        for term in contained.split():

                if term not in superset:

                        return False

        return True

class History(object):

        def __init__(self, filepath):

                self.filepath=filepath

        @classmethod

        def _match(self,line, match_terms):

                if match_terms is None:

                        return True

                for term in match_terms.split():

                        if term not in line:

                                return False

                return True

        def get(self, match_terms=None, limit=0):

                f = open(self.filepath, 'r')

                result = ['%s.  \t%s'%(index+1,line) \

                        for index,line in enumerate(f.readlines()) \

                        if self._match(line, match_terms)]

                offset = len(result)-limit if limit and len(result) > limit else 0

                return result[offset:]

        def add(self, line):

                f = open(self.filepath, 'a+')

                f.write(line+'\n')

                f.close()

        def clean(self):

                f = open(self.filepath, 'w')

                f.close()