import optparse
import pvl.rrd.graph # interface
from pvl.rrd import RRDDatabase, RRDCache
def parser (parser) :
"""
optparse OptionGroup.
"""
parser = optparse.OptionGroup(parser, "RRD options")
parser.add_option('--rrd-type', metavar='TYPE', default='collectd',
help="mrtg/collectd")
parser.add_option('--rrd', metavar='PATH',
help="Find RRD files")
parser.add_option('--rrd-cache', metavar='PATH',
help="Cache RRD graphs")
return parser
def apply (options) :
"""
Return RRDDatabase from options.
"""
# path
if not options.rrd :
log.error("no --rrd given")
sys.exit(2)
# type
graph_type = pvl.rrd.graph.interface_type(options.rrd_type)
# cache
if options.rrd_cache :
cache = RRDCache(options.rrd_cache)
else :
cache = None
return RRDDatabase(options.rrd, graph_type, cache)