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gitpython-6632/git/db.py at more-robust-git-diff · ali-security/gitpython-6632 · GitHub
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db.py
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db.py
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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
.
exc
import
(
GitCommandError
,
BadObject
)
__all__
=
(
'GitCmdObjectDB'
,
'GitDB'
)
# class GitCmdObjectDB(CompoundDB, ObjectDBW):
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
,
git
):
"""Initialize this instance with the root and a git command"""
super
(
GitCmdObjectDB
,
self
).
__init__
(
root_path
)
self
.
_git
=
git
def
info
(
self
,
sha
):
hexsha
,
typename
,
size
=
self
.
_git
.
get_object_header
(
bin_to_hex
(
sha
))
return
OInfo
(
hex_to_bin
(
hexsha
),
typename
,
size
)
def
stream
(
self
,
sha
):
"""For now, all lookup is done by git itself"""
hexsha
,
typename
,
size
,
stream
=
self
.
_git
.
stream_object_data
(
bin_to_hex
(
sha
))
return
OStream
(
hex_to_bin
(
hexsha
),
typename
,
size
,
stream
)
# { Interface
def
partial_to_complete_sha_hex
(
self
,
partial_hexsha
):
""":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
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