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from pathlib import Path
import typing
from hat import aio
from hatter import common
async def create(db_path: Path
) -> 'Backend':
backend = Backend()
backend._async_group = aio.Group()
backend._executor = aio.create_executor(1)
backend._db = await backend._executor(_ext_create, db_path)
backend.async_group.spawn(aio.call_on_cancel, backend._executor,
_ext_close, backend._db)
return backend
class Backend(aio.Resource):
@property
def async_group(self):
return self._async_group
async def get_commits(self,
repo: typing.Optional[str],
statuses: typing.Optional[typing.Set[common.Status]],
order: common.Order
) -> typing.List[common.Commit]:
return await self.async_group.spawn(
self._executor, _ext_get_commits, self._db, repo, statuses, order)
async def get_commit(self,
repo: str,
commit_hash: str
) -> typing.Optional[common.Commit]:
return await self.async_group.spawn(
self._executor, _ext_get_commit, self._db, repo, commit_hash)
async def update_commit(self, commit: common.Commit):
return await self._async_group.spawn(
self._executor, _ext_update_commit, self._db, commit)
async def remove_commit(self, commit: common.Commit):
return await self.async_group.spawn(
self._executor, _ext_remove_commit, self._db, commit)
def _ext_create(db_path):
pass
def _ext_close(db):
pass
def _ext_get_commits(db, repo, statuses, order):
return []
def _ext_get_commit(db, repo, commit_hash):
pass
def _ext_update_commit(db, commit):
pass
def _ext_remove_commit(db, commit):
pass
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