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"""Module with many useful complex databases with different useful combinations of primary implementations"""
from py.complex import PurePartialGitDB
from cmd.complex import CmdPartialGitDB
from compat import RepoCompatibilityInterface
__all__ = ['CmdGitDB', 'PureGitDB', 'CmdCompatibilityGitDB', 'PureCompatibilityGitDB']
class CmdGitDB(CmdPartialGitDB, PurePartialGitDB):
"""A database which uses primarily the git command implementation, but falls back
to pure python where it is more feasible
:note: To assure consistent behaviour across implementations, when calling the
``stream()`` method a cache is created. This makes this implementation a bad
choice when reading big files as these are streamed from memory in all cases."""
class CmdCompatibilityGitDB(RepoCompatibilityInterface, CmdGitDB):
"""A database which fills in its missing implementation using the pure python
implementation"""
pass
class PureGitDB(PurePartialGitDB, CmdPartialGitDB):
"""A repository which uses the pure implementation primarily, but falls back
on using the git command for high-level functionality"""
class PureCompatibilityGitDB(RepoCompatibilityInterface, PureGitDB):
"""Repository which uses the pure implementation primarily, but falls back
to the git command implementation. Please note that the CmdGitDB does it
the opposite way around."""
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