mirror of
https://github.com/thegeeklab/ansible-later.git
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86 lines
2.6 KiB
Python
86 lines
2.6 KiB
Python
# Copyright (C) 2010, 2011 Sebastian Thiel (byronimo@gmail.com) and contributors
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#
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# This module is part of GitDB and is released under
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# the New BSD License: http://www.opensource.org/licenses/bsd-license.php
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from gitdb.db.base import (
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CompoundDB,
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ObjectDBW,
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FileDBBase
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)
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from gitdb.db.loose import LooseObjectDB
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from gitdb.db.pack import PackedDB
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from gitdb.db.ref import ReferenceDB
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from gitdb.exc import InvalidDBRoot
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import os
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__all__ = ('GitDB', )
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class GitDB(FileDBBase, ObjectDBW, CompoundDB):
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"""A git-style object database, which contains all objects in the 'objects'
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subdirectory
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``IMPORTANT``: The usage of this implementation is highly discouraged as it fails to release file-handles.
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This can be a problem with long-running processes and/or big repositories.
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"""
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# Configuration
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PackDBCls = PackedDB
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LooseDBCls = LooseObjectDB
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ReferenceDBCls = ReferenceDB
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# Directories
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packs_dir = 'pack'
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loose_dir = ''
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alternates_dir = os.path.join('info', 'alternates')
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def __init__(self, root_path):
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"""Initialize ourselves on a git objects directory"""
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super(GitDB, self).__init__(root_path)
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def _set_cache_(self, attr):
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if attr == '_dbs' or attr == '_loose_db':
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self._dbs = list()
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loose_db = None
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for subpath, dbcls in ((self.packs_dir, self.PackDBCls),
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(self.loose_dir, self.LooseDBCls),
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(self.alternates_dir, self.ReferenceDBCls)):
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path = self.db_path(subpath)
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if os.path.exists(path):
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self._dbs.append(dbcls(path))
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if dbcls is self.LooseDBCls:
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loose_db = self._dbs[-1]
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# END remember loose db
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# END check path exists
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# END for each db type
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# should have at least one subdb
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if not self._dbs:
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raise InvalidDBRoot(self.root_path())
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# END handle error
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# we the first one should have the store method
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assert loose_db is not None and hasattr(loose_db, 'store'), "First database needs store functionality"
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# finally set the value
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self._loose_db = loose_db
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else:
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super(GitDB, self)._set_cache_(attr)
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# END handle attrs
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#{ ObjectDBW interface
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def store(self, istream):
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return self._loose_db.store(istream)
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def ostream(self):
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return self._loose_db.ostream()
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def set_ostream(self, ostream):
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return self._loose_db.set_ostream(ostream)
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#} END objectdbw interface
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