sintonia/python_apps/media-monitor2/media/monitor/bootstrap.py

60 lines
2.5 KiB
Python

import os
from pydispatch import dispatcher
from media.monitor.events import OrganizeFile, NewFile, DeleteFile
import media.monitor.pure as mmp
from media.monitor.log import Loggable
class Bootstrapper(Loggable):
"""
Bootstrapper reads all the info in the filesystem flushes organize
events and watch events
"""
def __init__(self,db,last_ran,org_channels,watch_channels):
self.db = db
self.org_channels = org_channels
self.watch_channels = watch_channels
self.last_ran = last_ran
def flush_organize(self):
"""
walks the organize directories and sends an organize event for every file manually
"""
flushed = 0
for pc in self.org_channels:
for f in mmp.walk_supported(pc.path, clean_empties=True):
self.logger.info("Bootstrapping: File in 'organize' directory: '%s'" % f)
dispatcher.send(signal=pc.signal, sender=self, event=OrganizeFile(f))
flushed += 1
self.logger.info("Flushed organized directory with %d files" % flushed)
def flush_watch(self):
"""
Syncs the file system into the database. Walks over deleted/new/modified files since
the last run in mediamonitor and sends requests to make the database consistent with
file system
"""
songs = set()
modded = 0
deleted = 0
for pc in self.watch_channels:
for f in mmp.walk_supported(pc.path, clean_empties=False):
songs.add(f)
if os.path.getmtime(f) > self.last_ran:
modded += 1
dispatcher.send(signal=pc.signal, sender=self, event=DeleteFile(f))
dispatcher.send(signal=pc.signal, sender=self, event=NewFile(f))
# Want all files in the database that are not in the filesystem
for to_delete in (self.db - songs):
for pc in self.watch_channels:
if os.path.commonprefix([pc.path, to_delete]) == pc.path:
dispatcher.send(signal=pc.signal, sender=self, event=DeleteFile(f))
os.remove(to_delete)
deleted += 1
break
else:
self.logger.info("Error, could not find watch directory of would be deleted \
file '%s'" % to_delete)
self.logger.info("Flushed watch directories. (modified, deleted) = (%d, %d)"
% (modded, deleted) )