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# This module is part of GitPython and is released under the
# 3-Clause BSD License: https://opensource.org/license/bsd-3-clause/
"""Module with our own gitdb implementation - it uses the git command."""
__all__= ["GitCmdObjectDB","GitDB"]
fromgitdb.baseimportOInfo,OStream
fromgitdb.dbimportGitDB,LooseObjectDB
fromgitdb.excimportBadObject
fromgit.utilimportbin_to_hex,hex_to_bin
fromgit.excimportGitCommandError
# typing-------------------------------------------------
fromtypingimportTYPE_CHECKING
fromgit.typesimportPathLike
ifTYPE_CHECKING:
fromgit.cmdimportGit
# --------------------------------------------------------
classGitCmdObjectDB(LooseObjectDB):
"""A database representing the default git object store, which includes loose
objects, pack files and an alternates file.
It will create objects only in the loose object database.
"""
def__init__(self,root_path:PathLike,git:"Git")->None:
"""Initialize this instance with the root and a git command."""
super().__init__(root_path)
self._git=git
definfo(self,binsha:bytes)->OInfo:
"""Get a git object header (using git itself)."""
hexsha,typename,size=self._git.get_object_header(bin_to_hex(binsha))
returnOInfo(hex_to_bin(hexsha),typename,size)
defstream(self,binsha:bytes)->OStream:
"""Get git object data as a stream supporting ``read()`` (using git itself)."""
hexsha,typename,size,stream=self._git.stream_object_data(bin_to_hex(binsha))
returnOStream(hex_to_bin(hexsha),typename,size,stream)
# { Interface
defpartial_to_complete_sha_hex(self,partial_hexsha:str)->bytes:
"""
:return:
Full binary 20 byte sha from the given partial hexsha
:raise gitdb.exc.AmbiguousObjectName:
:raise gitdb.exc.BadObject:
:note:
Currently we only raise :exc:`~gitdb.exc.BadObject` as git does not
communicate ambiguous objects separately.
"""
try:
hexsha,_typename,_size=self._git.get_object_header(partial_hexsha)
returnhex_to_bin(hexsha)
except (GitCommandError,ValueError)ase:
raiseBadObject(partial_hexsha)frome
# END handle exceptions
# } END interface