def next_repo( queue, local=False ):
"""Gets next collection_path or time til next ready to be updated
@param queue:
@param local: Boolean Use local per-collection locks or global lock.
@returns: collection_path or (msg,timedelta)
"""
collection_path = None
message = None
next_available = None
# sorts collections in ascending order by timestamp
collections = sorted(queue['collections'])
# now choose
if local:
# choose first collection that is not locked
for timestamp,cid in collections:
if datetime.now() > timestamp:
cpath = os.path.join(settings.MEDIA_BASE, cid)
collection = Collection.from_json(cpath)
if not collection.locked():
collection_path = cpath
return collection_path
if (not next_available) or (timestamp < next_available):
next_available = timestamp
else:
# global lock - just take the first collection
for timestamp,cid in collections:
if datetime.now() > timestamp:
collection_path = os.path.join(settings.MEDIA_BASE, cid)
return collection_path
if (not next_available) or (timestamp < next_available):
next_available = timestamp
return ('notready',next_available)
