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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"]
from gitdb.base import OInfo, OStream
from gitdb.db import GitDB, LooseObjectDB
from gitdb.exc import BadObject
from git.util import bin_to_hex, hex_to_bin
from git.exc import GitCommandError
# typing-------------------------------------------------
from typing import TYPE_CHECKING
from git.types import PathLike
if TYPE_CHECKING:
from git.cmd import Git
# --------------------------------------------------------
class GitCmdObjectDB(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
def info(self, binsha: bytes) -> OInfo:
"""Get a git object header (using git itself)."""
hexsha, typename, size = self._git.get_object_header(bin_to_hex(binsha))
return OInfo(hex_to_bin(hexsha), typename, size)
def stream(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))
return OStream(hex_to_bin(hexsha), typename, size, stream)
# { Interface
def partial_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)
return hex_to_bin(hexsha)
except (GitCommandError, ValueError) as e:
raise BadObject(partial_hexsha) from e
# END handle exceptions
# } END interface