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"""Module with our own gitdb implementation - it uses the git command"""
from git.util import bin_to_hex, hex_to_bin
from gitdb.base import OInfo, OStream
from gitdb.db import GitDB # @UnusedImport
from gitdb.db import LooseObjectDB
from gitdb.exc import BadObject
from git.exc import GitCommandError
# typing-------------------------------------------------
from typing import TYPE_CHECKING
from git.types import PathLike
if TYPE_CHECKING:
from git.cmd import Git
# --------------------------------------------------------
__all__ = ("GitCmdObjectDB", "GitDB")
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.
:note: for now, we use the git command to do all the lookup, just until he
have packs and the other implementations
"""
def __init__(self, root_path: PathLike, git: "Git") -> None:
"""Initialize this instance with the root and a git command"""
super(GitCmdObjectDB, self).__init__(root_path)
self._git = git
def info(self, binsha: bytes) -> OInfo:
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:
"""For now, all lookup is done by 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 AmbiguousObjectName:
:raise BadObject:
:note: currently we only raise BadObject as git does not communicate
AmbiguousObjects 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