Files
romm/backend/watcher.py
2025-08-06 23:25:47 -04:00

98 lines
3.0 KiB
Python

import os
import sys
from datetime import timedelta
import sentry_sdk
from config import (
ENABLE_RESCAN_ON_FILESYSTEM_CHANGE,
LIBRARY_BASE_PATH,
RESCAN_ON_FILESYSTEM_CHANGE_DELAY,
SENTRY_DSN,
)
from config.config_manager import config_manager as cm
from endpoints.sockets.scan import scan_platforms
from handler.database import db_platform_handler
from handler.scan_handler import ScanType
from logger.formatter import CYAN
from logger.formatter import highlight as hl
from logger.logger import log
from rq.job import Job
from tasks.tasks import tasks_scheduler
from utils import get_version
from watchdog.events import (
DirCreatedEvent,
DirDeletedEvent,
FileCreatedEvent,
FileDeletedEvent,
FileSystemMovedEvent,
)
sentry_sdk.init(
dsn=SENTRY_DSN,
release=f"romm@{get_version()}",
)
structure_level = 2 if os.path.exists(cm.get_config().HIGH_PRIO_STRUCTURE_PATH) else 1
valid_events = [
DirCreatedEvent.event_type,
DirDeletedEvent.event_type,
FileCreatedEvent.event_type,
FileDeletedEvent.event_type,
FileSystemMovedEvent.event_type,
]
def on_any_event(src_path: str, _dest_path: str, event_type: str, object: str):
if event_type not in valid_events:
return
if not ENABLE_RESCAN_ON_FILESYSTEM_CHANGE:
return
src_path = os.fsdecode(src_path)
event_src = src_path.split(LIBRARY_BASE_PATH)[-1]
fs_slug = event_src.split("/")[structure_level]
db_platform = db_platform_handler.get_platform_by_fs_slug(fs_slug)
log.info(f"Filesystem event: {event_type} {event_src} {fs_slug} {db_platform}")
# Skip if a scan is already scheduled
for job in tasks_scheduler.get_jobs():
if isinstance(job, Job):
if job.func_name == "endpoints.sockets.scan.scan_platforms":
if job.args[0] == []:
log.info("Full rescan already scheduled")
return
if db_platform and db_platform.id in job.args[0]:
log.info(f"Scan already scheduled for {hl(fs_slug)}")
return
time_delta = timedelta(minutes=RESCAN_ON_FILESYSTEM_CHANGE_DELAY)
rescan_in_msg = f"rescanning in {hl(str(RESCAN_ON_FILESYSTEM_CHANGE_DELAY), color=CYAN)} minutes."
# Any change to a platform directory should trigger a full rescan
if object == "directory" and event_src.count("/") == 1:
log.info(f"Platform directory changed, {rescan_in_msg}")
tasks_scheduler.enqueue_in(time_delta, scan_platforms, [])
elif db_platform:
# Otherwise trigger a rescan for the specific platform
log.info(f"Change detected in {hl(fs_slug)} folder, {rescan_in_msg}")
tasks_scheduler.enqueue_in(
time_delta,
scan_platforms,
[db_platform.id],
scan_type=ScanType.QUICK,
)
if __name__ == "__main__":
watch_src_path = sys.argv[1]
watch_dest_path = sys.argv[2]
watch_event_type = sys.argv[3]
watch_object = sys.argv[4]
on_any_event(watch_src_path, watch_dest_path, watch_event_type, watch_object)