The Gatekeeper, or a project gating system
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zuul/zuul/trigger/timer.py

96 lines
3.6 KiB

# Copyright 2012 Hewlett-Packard Development Company, L.P.
# Copyright 2013 OpenStack Foundation
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import apscheduler.scheduler
import logging
from zuul.model import TriggerEvent
class Timer(object):
name = 'timer'
log = logging.getLogger("zuul.Timer")
def __init__(self, config, sched):
self.sched = sched
self.config = config
self.apsched = apscheduler.scheduler.Scheduler()
self.apsched.start()
def _onTrigger(self, pipeline_name, timespec):
for project in self.sched.layout.projects.values():
event = TriggerEvent()
event.type = 'timer'
event.timespec = timespec
event.forced_pipeline = pipeline_name
event.project_name = project.name
self.log.debug("Adding event %s" % event)
self.sched.addEvent(event)
def stop(self):
self.apsched.shutdown()
def isMerged(self, change, head=None):
raise Exception("Timer trigger does not support checking if "
"a change is merged.")
def canMerge(self, change, allow_needs):
raise Exception("Timer trigger does not support checking if "
"a change can merge.")
def maintainCache(self, relevant):
return
def postConfig(self):
for job in self.apsched.get_jobs():
self.apsched.unschedule_job(job)
for pipeline in self.sched.layout.pipelines.values():
if pipeline.trigger != self:
continue
for ef in pipeline.manager.event_filters:
for timespec in ef.timespecs:
parts = timespec.split()
if len(parts) < 5 or len(parts) > 6:
self.log.error(
"Unable to parse time value '%s' "
"defined in pipeline %s" % (
timespec,
pipeline.name))
continue
minute, hour, dom, month, dow = parts[:5]
if len(parts) > 5:
second = parts[5]
else:
second = None
self.apsched.add_cron_job(self._onTrigger,
day=dom,
day_of_week=dow,
hour=hour,
minute=minute,
second=second,
args=(pipeline.name,
timespec,))
def getChange(self, number, patchset, refresh=False):
raise Exception("Timer trigger does not support changes.")
def getGitUrl(self, project):
# For the moment, the timer trigger requires gerrit.
return self.sched.triggers['gerrit'].getGitUrl(project)
def getGitwebUrl(self, project, sha=None):
url = '%s/gitweb?p=%s.git' % (self.baseurl, project)
if sha:
url += ';a=commitdiff;h=' + sha
return url