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klippy_connection: implement manual log rollover 

On systems where Klipper is installed as a service allow a
manual log rollover.  The rollover cannot be called while printing.

Signed-off-by:  Eric Callahan <arksine.code@gmail.com>
This commit is contained in:
Eric Callahan 2023-01-06 11:01:43 -05:00
parent ecf7fb9267
commit 24dc8914d0
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1 changed files with 31 additions and 0 deletions
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31
moonraker/klippy_connection.py
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@ -561,6 +561,37 @@ class KlippyConnection:
stats = job_state.get_last_stats()
return stats.get("state", "") == "printing"
async def rollover_log(self) -> None:
if "unit_name" not in self._service_info:
raise self.server.error(
"Unable to detect Klipper Service, cannot perform "
"manual rollover"
)
logfile: Optional[str] = self._klippy_info.get("log_file", None)
if logfile is None:
raise self.server.error(
"Unable to detect path to Klipper log file"
)
if self.is_printing():
raise self.server.error("Cannot rollover log while printing")
logpath = pathlib.Path(logfile).expanduser().resolve()
if not logpath.is_file():
raise self.server.error(
f"No file at {logpath} exists, cannot perform rollover"
)
machine: Machine = self.server.lookup_component("machine")
await machine.do_service_action("stop", self.unit_name)
suffix = time.strftime("%Y-%m-%d_%H-%M-%S", time.localtime())
new_path = pathlib.Path(f"{logpath}.{suffix}")
def _do_file_op() -> None:
if new_path.exists():
new_path.unlink()
logpath.rename(new_path)
await self.event_loop.run_in_thread(_do_file_op)
await machine.do_service_action("start", self.unit_name)
async def _on_connection_closed(self) -> None:
self.init_list = []
self._state = "disconnected"