# Copyright (C) 2010, 2011 Sebastian Thiel (byronimo@gmail.com) and contributors
#
# This module is part of GitDB and is released under
# the New BSD License: http://www.opensource.org/licenses/bsd-license.php
"""Contains library functions"""
import os
import logging
from gitdb.test.lib import TestBase


#{ Invvariants
k_env_git_repo = "GITDB_TEST_GIT_REPO_BASE"
#} END invariants



#{ Base Classes 

class TestBigRepoR(TestBase):
    """TestCase providing access to readonly 'big' repositories using the following 
    member variables:
    
    * gitrepopath
    
     * read-only base path of the git source repository, i.e. .../git/.git"""
     
    #{ Invariants
    head_sha_2k = '235d521da60e4699e5bd59ac658b5b48bd76ddca'
    head_sha_50 = '32347c375250fd470973a5d76185cac718955fd5'
    #} END invariants 
    
    def setUp(self):
        try:
            super(TestBigRepoR, self).setUp()
        except AttributeError:
            pass

        self.gitrepopath = os.environ.get(k_env_git_repo)
        if not self.gitrepopath:
            logging.info("You can set the %s environment variable to a .git repository of your choice - defaulting to the gitdb repository")
            ospd = os.path.dirname
            self.gitrepopath = os.path.join(ospd(ospd(ospd(ospd(__file__)))), '.git')
        # end assure gitrepo is set
        assert self.gitrepopath.endswith('.git')

        
#} END base classes