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SickRage/sickbeard/name_cache.py

128 lines
4.5 KiB
Python

# Author: Nic Wolfe <nic@wolfeden.ca>
# URL: http://code.google.com/p/sickbeard/
#
# This file is part of SickRage.
#
# SickRage is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# SickRage is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with SickRage. If not, see <http://www.gnu.org/licenses/>.
import threading
import sickbeard
from sickbeard import db
from sickbeard import logger
nameCache = {}
nameCacheLock = threading.Lock()
def addNameToCache(name, indexer_id=0):
"""
Adds the show & tvdb id to the scene_names table in cache.db.
name: The show name to cache
indexer_id: the TVDB and TVRAGE id that this show should be cached with (can be None/0 for unknown)
"""
global nameCache
cacheDB = db.DBConnection('cache.db')
# standardize the name we're using to account for small differences in providers
name = sickbeard.helpers.full_sanitizeSceneName(name)
if name not in nameCache:
nameCache[name] = int(indexer_id)
cacheDB.action("INSERT OR REPLACE INTO scene_names (indexer_id, name) VALUES (?, ?)", [indexer_id, name])
def retrieveNameFromCache(name):
"""
Looks up the given name in the scene_names table in cache.db.
name: The show name to look up.
Returns: the TVDB and TVRAGE id that resulted from the cache lookup or None if the show wasn't found in the cache
"""
global nameCache
name = sickbeard.helpers.full_sanitizeSceneName(name)
if name in nameCache:
return int(nameCache[name])
def clearCache():
"""
Deletes all "unknown" entries from the cache (names with indexer_id of 0).
"""
global nameCache
# init name cache
if not nameCache:
nameCache = {}
cacheDB = db.DBConnection('cache.db')
cacheDB.action("DELETE FROM scene_names WHERE indexer_id = ?", [0])
toRemove = [key for key, value in nameCache.iteritems() if value == 0]
for key in toRemove:
del nameCache[key]
def saveNameCacheToDb():
cacheDB = db.DBConnection('cache.db')
for name, indexer_id in nameCache.items():
cacheDB.action("INSERT OR REPLACE INTO scene_names (indexer_id, name) VALUES (?, ?)", [indexer_id, name])
def buildNameCache(show=None):
global nameCache
with nameCacheLock:
# clear internal name cache
clearCache()
# update scene exception names
sickbeard.scene_exceptions.retrieve_exceptions()
if not show:
logger.log(u"Building internal name cache for all shows", logger.INFO)
cacheDB = db.DBConnection('cache.db')
cache_results = cacheDB.select("SELECT * FROM scene_names")
for cache_result in cache_results:
name = sickbeard.helpers.full_sanitizeSceneName(cache_result["name"])
if name in nameCache:
continue
indexer_id = int(cache_result["indexer_id"])
nameCache[name] = indexer_id
for show in sickbeard.showList:
for curSeason in [-1] + sickbeard.scene_exceptions.get_scene_seasons(show.indexerid):
for name in list(set(
sickbeard.scene_exceptions.get_scene_exceptions(show.indexerid, season=curSeason) + [
show.name])):
name = sickbeard.helpers.full_sanitizeSceneName(name)
if name in nameCache:
continue
nameCache[name] = int(show.indexerid)
else:
logger.log(u"Building internal name cache for " + show.name, logger.INFO)
for curSeason in [-1] + sickbeard.scene_exceptions.get_scene_seasons(show.indexerid):
for name in list(set(sickbeard.scene_exceptions.get_scene_exceptions(show.indexerid, season=curSeason) + [
show.name])):
name = sickbeard.helpers.full_sanitizeSceneName(name)
if name in nameCache:
continue
nameCache[name] = int(show.indexerid)
logger.log(u"Internal name cache set to: " + str(nameCache), logger.DEBUG)