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delete_local_events for purge_history

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Add a flag which makes the purger delete local events
This commit is contained in:
Richard van der Hoff 2018-02-08 18:44:52 +00:00
parent e571aef06d
commit 74fcbf741b
5 changed files with 67 additions and 15 deletions
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35
synapse/storage/events.py
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@ -2031,16 +2031,32 @@ class EventsStore(SQLBaseStore):
)
return self.runInteraction("get_all_new_events", get_all_new_events_txn)
def purge_history(self, room_id, topological_ordering):
def purge_history(
self, room_id, topological_ordering, delete_local_events,
):
"""Deletes room history before a certain point
Args:
room_id (str):
topological_ordering (int):
minimum topo ordering to preserve
delete_local_events (bool):
if True, we will delete local events as well as remote ones
(instead of just marking them as outliers and deleting their
state groups).
"""
return self.runInteraction(
"purge_history",
self._purge_history_txn, room_id, topological_ordering
self._purge_history_txn, room_id, topological_ordering,
delete_local_events,
)
def _purge_history_txn(self, txn, room_id, topological_ordering):
def _purge_history_txn(
self, txn, room_id, topological_ordering, delete_local_events,
):
# Tables that should be pruned:
# event_auth
# event_backward_extremities
@ -2093,11 +2109,14 @@ class EventsStore(SQLBaseStore):
to_delete = [
(event_id,) for event_id, state_key in event_rows
if state_key is None and not self.hs.is_mine_id(event_id)
if state_key is None and (
delete_local_events or not self.hs.is_mine_id(event_id)
)
]
logger.info(
"[purge] found %i events before cutoff, of which %i are remote"
" non-state events to delete", len(event_rows), len(to_delete))
"[purge] found %i events before cutoff, of which %i can be deleted",
len(event_rows), len(to_delete),
)
logger.info("[purge] Finding new backward extremities")
@ -2273,7 +2292,9 @@ class EventsStore(SQLBaseStore):
" WHERE event_id = ?",
[
(True, event_id,) for event_id, state_key in event_rows
if state_key is not None or self.hs.is_mine_id(event_id)
if state_key is not None or (
not delete_local_events and self.hs.is_mine_id(event_id)
)
]
)