Initial commit.
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..84dbe1d
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,6 @@
+build
+dist
+zuul.egg-info
+MANIFEST
+.tox
+
diff --git a/.gitreview b/.gitreview
new file mode 100644
index 0000000..cf39bc6
--- /dev/null
+++ b/.gitreview
@@ -0,0 +1,4 @@
+[gerrit]
+host=review.openstack.org
+port=29418
+project=openstack-ci/zuul.git
diff --git a/AUTHORS b/AUTHORS
new file mode 100644
index 0000000..1fd7b21
--- /dev/null
+++ b/AUTHORS
@@ -0,0 +1 @@
+James E. Blair <jeblair@hp.com>
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..75b5248
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,202 @@
+
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+ 1. Definitions.
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+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
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+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
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+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
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diff --git a/README b/README
new file mode 100644
index 0000000..52383b5
--- /dev/null
+++ b/README
@@ -0,0 +1 @@
+This is a trunk gating system developed for the OpenStack Project.
diff --git a/setup.py b/setup.py
new file mode 100644
index 0000000..8456cc4
--- /dev/null
+++ b/setup.py
@@ -0,0 +1,31 @@
+#!/usr/bin/env python
+# Copyright 2012 Hewlett-Packard Development Company, L.P.
+#
+# 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.
+
+from setuptools import find_packages
+from setuptools.command.sdist import sdist
+from setuptools import setup
+import subprocess
+
+setup(name='zuul',
+ version='1.0',
+ description="Trunk gating system",
+ license='Apache License (2.0)',
+ author='Hewlett-Packard Development Company, L.P.',
+ author_email='openstack@lists.launchpad.net',
+ url='http://launchpad.net/zuul',
+ scripts=['zuul-server'],
+ include_package_data=True,
+ zip_safe=False,
+ )
diff --git a/zuul-server b/zuul-server
new file mode 100755
index 0000000..e3e1926
--- /dev/null
+++ b/zuul-server
@@ -0,0 +1,53 @@
+import argparse
+import ConfigParser
+import os
+
+import zuul.scheduler
+import zuul.launcher.jenkins
+import zuul.trigger.gerrit
+
+import logging.config
+
+def parse_arguments():
+ parser = argparse.ArgumentParser(description='Project gating system.')
+ parser.add_argument('-c', dest='config',
+ help='specify the config file')
+ return parser.parse_args()
+
+def read_config(args):
+ config=ConfigParser.ConfigParser()
+ if args.config:
+ locations = [args.config]
+ else:
+ locations = ['/etc/zuul/zuul.conf',
+ '~/zuul.conf']
+ for fp in locations:
+ if os.path.exists(os.path.expanduser(fp)):
+ config.read(fp)
+ return config
+ raise Exception("Unable to locate config file in %s" % locations)
+
+def setup_logging(config):
+ if config.has_option('zuul', 'log_config'):
+ fp = os.path.expanduser(config.get('zuul', 'log_config'))
+ if not os.path.exists(fp):
+ raise Exception("Unable to read logging config file at %s" % fp)
+ logging.config.fileConfig(fp)
+ else:
+ logging.basicConfig(level=logging.DEBUG)
+
+def main(config):
+ sched = zuul.scheduler.Scheduler(config)
+
+ jenkins = zuul.launcher.jenkins.Jenkins(config, sched)
+ gerrit = zuul.trigger.gerrit.Gerrit(config, sched)
+
+ sched.setLauncher(jenkins)
+ sched.setTrigger(gerrit)
+ sched.run()
+
+if __name__ == '__main__':
+ args = parse_arguments()
+ config = read_config(args)
+ setup_logging(config)
+ main(config)
diff --git a/zuul/__init__.py b/zuul/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/zuul/__init__.py
diff --git a/zuul/launcher/__init__.py b/zuul/launcher/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/zuul/launcher/__init__.py
diff --git a/zuul/launcher/jenkins.py b/zuul/launcher/jenkins.py
new file mode 100644
index 0000000..cd9e19d
--- /dev/null
+++ b/zuul/launcher/jenkins.py
@@ -0,0 +1,217 @@
+# Copyright 2012 Hewlett-Packard Development Company, L.P.
+#
+# 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.
+
+# So we can name this module "jenkins" and still load the "jenkins"
+# system module
+from __future__ import absolute_import
+
+import threading
+from webob import Request
+from paste import httpserver
+from uuid import uuid1
+import jenkins
+import json
+import urllib2 # for extending jenkins lib
+import logging
+import pprint
+
+from zuul.model import Build
+
+class JenkinsCallback(threading.Thread):
+ log = logging.getLogger("zuul.JenkinsCallback")
+
+ def __init__(self, jenkins):
+ threading.Thread.__init__(self)
+ self.jenkins = jenkins
+
+ def run(self):
+ httpserver.serve(self.app, host='0.0.0.0', port='8080')
+
+ def app(self, environ, start_response):
+ request = Request(environ)
+ if request.path == '/jenkins_endpoint':
+ self.jenkins_endpoint(request)
+ start_response('200 OK', [('content-type', 'text/html')])
+ return ['Zuul good.']
+
+ def jenkins_endpoint(self, request):
+ data = json.loads(request.body)
+ if data:
+ self.log.debug("Received data from Jenkins: \n%s" % (
+ pprint.pformat(data)))
+ build = data.get('build')
+ if build:
+ phase = build.get('phase')
+ status = build.get('status')
+ url = build.get('full_url')
+ number = build.get('number')
+ params = build.get('parameters')
+ if params:
+ uuid = params.get('UUID')
+ if (status and url and uuid and phase
+ and phase == 'COMPLETED'):
+ self.jenkins.onBuildCompleted(uuid, status, url, number)
+ if (phase and phase == 'STARTED'):
+ self.jenkins.onBuildStarted(uuid, url, number)
+
+
+STOP_BUILD = 'job/%(name)s/%(number)s/stop'
+CANCEL_QUEUE = 'queue/item/%(number)s/cancelQueue'
+BUILD_INFO = 'job/%(name)s/%(number)s/api/json?depth=0'
+
+class ExtendedJenkins(jenkins.Jenkins):
+ def jenkins_open(self, req):
+ '''
+ Utility routine for opening an HTTP request to a Jenkins server.
+ '''
+ try:
+ if self.auth:
+ req.add_header('Authorization', self.auth)
+ return urllib2.urlopen(req).read()
+ except urllib2.HTTPError, e:
+ print e.msg
+ print e.fp.read()
+ raise
+
+ def stop_build(self, name, number):
+ '''
+ Stop a running Jenkins build.
+
+ @param name: Name of Jenkins job
+ @type name: str
+ @param number: Jenkins build number for the job
+ @type number: int
+ '''
+ self.jenkins_open(urllib2.Request(self.server + STOP_BUILD%locals()))
+
+ def cancel_queue(self, number):
+ '''
+ Cancel a queued build.
+
+ @param number: Jenkins queue number for the build
+ @type number: int
+ '''
+ # Jenkins returns a 302 from this URL, unless Referer is not set,
+ # then you get a 404.
+ self.jenkins_open(urllib2.Request(self.server + CANCEL_QUEUE%locals(),
+ headers={'Referer': self.server}))
+
+
+ def get_build_info(self, name, number):
+ '''
+ Get information for a build.
+
+ @param name: Name of Jenkins job
+ @type name: str
+ @param number: Jenkins build number for the job
+ @type number: int
+ @return: dictionary
+ '''
+ return json.loads(self.jenkins_open(urllib2.Request(self.server + BUILD_INFO%locals())))
+
+class Jenkins(object):
+ log = logging.getLogger("zuul.Jenkins")
+
+ def __init__(self, config, sched):
+ self.sched = sched
+ self.builds = {}
+ server = config.get('jenkins', 'server')
+ user = config.get('jenkins', 'user')
+ apikey = config.get('jenkins', 'apikey')
+ self.jenkins = ExtendedJenkins(server, user, apikey)
+ self.callback_thread = JenkinsCallback(self)
+ self.callback_thread.start()
+
+ def launch(self, job, change, dependent_changes = []):
+ self.log.info("Launch job %s for change %s with dependent changes %s" % (
+ job, change, dependent_changes))
+ uuid = str(uuid1())
+ params = dict(UUID=uuid)
+ build = Build(job, uuid)
+ self.builds[uuid] = build
+ # We can get the started notification on another thread before this is done
+ # so we add the build even before we trigger the job on Jenkins. We should
+ # be careful to clean it up if it doesn't actually kick off.
+ try:
+ self.jenkins.build_job(job.name, parameters=params)
+ except:
+ self.log.exception("Exception launching build %s for job %s for change %s:" % (
+ build, job, change))
+ # Whoops. Remove that build we added.
+ del self.builds[uuid]
+ raise
+ return build
+
+ def cancel(self, build):
+ self.log.info("Cancel build %s for job %s" % (build, build.job))
+ if build.number:
+ self.log.debug("Build %s has already started" % build)
+ self.jenkins.stop_build(build.job.name, build.number)
+ self.log.debug("Canceled running build %s" % build)
+ return
+ else:
+ self.log.debug("Build %s has not started yet" % build)
+
+ self.log.debug("Looking for build %s in queue" % build)
+ for item in self.jenkins.get_queue_info():
+ if not item.has_key('actions'):
+ continue
+ for action in item['actions']:
+ if not action.has_key('parameters'):
+ continue
+ parameters = action['parameters']
+ for param in parameters:
+ if (param['name'] == 'UUID' and build.uuid == param['value']):
+ self.log.debug("Found queue item %s for build %s" % (
+ item['id'], build))
+ try:
+ self.jenkins.cancel_queue(item['id'])
+ self.log.debug("Canceled queue item %s for build %s" % (
+ item['id'], build))
+ return
+ except:
+ self.log.exception("Exception canceling queue item %s for build %s" % (
+ item['id'], build))
+
+ self.log.debug("Still unable to find build %s to cancel" % build)
+ if build.number:
+ self.log.debug("Build %s has just started" % build)
+ self.jenkins.stop_build(build.job.name, build.number)
+ self.log.debug("Canceled just running build %s" % build)
+ else:
+ self.log.error("Build %s has not started but was not found in queue" % build)
+
+ def onBuildCompleted(self, uuid, status, url, number):
+ self.log.info("Build %s #%s complete, status %s" % (
+ uuid, number, status))
+ build = self.builds.get(uuid)
+ if build:
+ self.log.debug("Found build %s" % build)
+ del self.builds[uuid]
+ build.result = status
+ build.url = url
+ build.number = number
+ self.sched.onBuildCompleted(build)
+ else:
+ self.log.error("Unable to find build %s" % uuid)
+
+ def onBuildStarted(self, uuid, url, number):
+ self.log.info("Build %s #%s started, url: %s" % (uuid, number, url))
+ build = self.builds.get(uuid)
+ if build:
+ self.log.debug("Found build %s" % build)
+ build.url = url
+ build.number = number
+ else:
+ self.log.error("Unable to find build %s" % uuid)
diff --git a/zuul/lib/__init__.py b/zuul/lib/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/zuul/lib/__init__.py
diff --git a/zuul/lib/gerrit.py b/zuul/lib/gerrit.py
new file mode 100644
index 0000000..9c72d44
--- /dev/null
+++ b/zuul/lib/gerrit.py
@@ -0,0 +1,171 @@
+# Copyright 2012 Hewlett-Packard Development Company, L.P.
+#
+# 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 threading
+import select
+import json
+import time
+import subprocess
+import Queue
+import paramiko
+import logging
+import pprint
+
+# TODO: switch this to paramiko?
+
+class GerritWatcher(threading.Thread):
+ log = logging.getLogger("gerrit.GerritWatcher")
+
+ def __init__(self, gerrit, username, server, port=29418, keyfile=None):
+ threading.Thread.__init__(self)
+ self.username = username
+ self.keyfile = keyfile
+ self.server = server
+ self.port = port
+ self.proc = None
+ self.poll = select.poll()
+ self.gerrit = gerrit
+
+ def _open(self):
+ self.log.debug("Opening ssh connection to %s" % self.server)
+ cmd = ['/usr/bin/ssh', '-p', str(self.port)]
+ if self.keyfile:
+ cmd += ['-i', self.keyfile]
+ cmd += ['-l', self.username, self.server,
+ 'gerrit', 'stream-events']
+ self.proc = subprocess.Popen(cmd,
+ bufsize=1,
+ stdin=None,
+ stdout=subprocess.PIPE,
+ stderr=None,
+ )
+ self.poll.register(self.proc.stdout)
+
+ def _close(self):
+ self.log.debug("Closing ssh connection")
+ try:
+ self.poll.unregister(self.proc.stdout)
+ except:
+ pass
+ try:
+ self.proc.kill()
+ except:
+ pass
+ self.proc = None
+
+ def _read(self):
+ l = self.proc.stdout.readline()
+ data = json.loads(l)
+ self.log.debug("Received data from Gerrit event stream: \n%s" % pprint.pformat(data))
+ self.gerrit.addEvent(data)
+
+ def _listen(self):
+ while True:
+ ret = self.poll.poll()
+ for (fd, event) in ret:
+ if fd == self.proc.stdout.fileno():
+ if event == select.POLLIN:
+ self._read()
+ else:
+ raise Exception("event on ssh connection")
+
+ def _run(self):
+ try:
+ if not self.proc:
+ self._open()
+ self._listen()
+ except:
+ self.log.exception("Exception on ssh event stream:")
+ self._close()
+ time.sleep(5)
+
+ def run(self):
+ while True:
+ self._run()
+
+class Gerrit(object):
+ log = logging.getLogger("gerrit.Gerrit")
+
+ def __init__(self, hostname, username, keyfile=None):
+ self.username = username
+ self.hostname = hostname
+ self.keyfile = keyfile
+ self.watcher_thread = None
+ self.event_queue = None
+
+ def startWatching(self):
+ self.event_queue = Queue.Queue()
+ self.watcher_thread = GerritWatcher(
+ self,
+ self.username,
+ self.hostname,
+ keyfile=self.keyfile)
+ self.watcher_thread.start()
+
+ def addEvent(self, data):
+ return self.event_queue.put(data)
+
+ def getEvent(self):
+ return self.event_queue.get()
+
+ def review(self, project, change, message, action={}):
+ cmd = 'gerrit review --project %s --message "%s"' % (
+ project, message)
+ for k,v in action.items():
+ if v == True:
+ cmd += ' --%s' % k
+ else:
+ cmd += ' --%s %s' % (k, v)
+ cmd += ' %s' % change
+ out, err = self._ssh(cmd)
+ return err
+
+ def query(self, change):
+ cmd = 'gerrit query --format json %s"' % (
+ change)
+ out, err = self._ssh(cmd)
+ if not out:
+ return False
+ lines = out.split('\n')
+ if not lines:
+ return False
+ data = json.loads(lines[0])
+ if not data:
+ return False
+ self.log.debug("Received data from Gerrit query: \n%s" % (
+ pprint.pformat(data)))
+ return data
+
+ def _ssh(self, command):
+ client = paramiko.SSHClient()
+ client.load_system_host_keys()
+ client.set_missing_host_key_policy(paramiko.WarningPolicy())
+ client.connect(self.hostname,
+ username=self.username,
+ port=29418)
+
+ self.log.debug("SSH command:\n%s" % command)
+ stdin, stdout, stderr = client.exec_command(command)
+
+ out = stdout.read()
+ self.log.debug("SSH received stdout:\n%s" % out)
+
+ ret = stdout.channel.recv_exit_status()
+ self.log.debug("SSH exit status: %s" % ret)
+
+ err = stderr.read()
+ self.log.debug("SSH received stderr:\n%s" % err)
+ if ret:
+ raise Exception("Gerrit error executing %s" % command)
+ return (out, err)
diff --git a/zuul/model.py b/zuul/model.py
new file mode 100644
index 0000000..ac64761
--- /dev/null
+++ b/zuul/model.py
@@ -0,0 +1,323 @@
+# Copyright 2012 Hewlett-Packard Development Company, L.P.
+#
+# 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 re
+
+class ChangeQueue(object):
+ def __init__(self, queue_name):
+ self.name = ''
+ self.queue_name = queue_name
+ self.projects = []
+ self._jobs = set()
+ self.queue = []
+
+ def __str__(self):
+ return '<ChangeQueue %s: %s>' % (self.queue_name, self.name)
+
+ def getJobs(self):
+ return self._jobs
+
+ def addProject(self, project):
+ if project not in self.projects:
+ self.projects.append(project)
+ names = [x.name for x in self.projects]
+ names.sort()
+ self.name = ', '.join(names)
+ self._jobs |= set(project.getJobs(self.queue_name))
+
+ def enqueueChange(self, change):
+ if self.queue:
+ self.queue[-1].change_behind = change
+ change.change_ahead = self.queue[-1]
+ self.queue.append(change)
+ change.queue = self
+
+ def dequeueChange(self, change):
+ if change in self.queue:
+ self.queue.remove(change)
+
+ def mergeChangeQueue(self, other):
+ for project in other.projects:
+ self.addProject(project)
+
+class Job(object):
+ def __init__(self, name):
+ self.name = name
+ self.failure_message = None
+ self.success_message = None
+ self.event_filters = []
+
+ def __str__(self):
+ return self.name
+
+ def __repr__(self):
+ return '<Job %s>' % (self.name)
+
+class Build(object):
+ def __init__(self, job, uuid):
+ self.job = job
+ self.uuid = uuid
+ self.status = None
+ self.url = None
+ self.number = None
+
+ def __repr__(self):
+ return '<Build %s of %s>' % (self.uuid, self.job.name)
+
+class JobTree(object):
+ """ A JobTree represents an instance of one Job, and holds JobTrees
+ whose jobs should be run if that Job succeeds. A root node of a
+ JobTree will have no associated Job. """
+
+ def __init__(self, job):
+ self.job = job
+ self.job_trees = []
+
+ def addJob(self, job):
+ if job not in [x.job for x in self.job_trees]:
+ t = JobTree(job)
+ self.job_trees.append(t)
+ return t
+
+ def getJobs(self):
+ jobs = []
+ for x in self.job_trees:
+ jobs.append(x.job)
+ jobs.extend(x.getJobs())
+ return jobs
+
+ def getJobTreeForJob(self, job):
+ if self.job == job:
+ return self
+ for tree in self.job_trees:
+ ret = tree.getJobTreeForJob(job)
+ if ret:
+ return ret
+ return None
+
+class Project(object):
+ def __init__(self, name):
+ self.name = name
+ self.job_trees = {} # Queue -> JobTree
+
+ def __str__(self):
+ return self.name
+
+ def __repr__(self):
+ return '<Project %s>' % (self.name)
+
+ def addQueue(self, name):
+ self.job_trees[name] = JobTree(None)
+ return self.job_trees[name]
+
+ def hasQueue(self, name):
+ if self.job_trees.has_key(name):
+ return True
+ return False
+
+ def getJobTreeForQueue(self, name):
+ return self.job_trees.get(name, None)
+
+ def getJobs(self, queue_name):
+ tree = self.getJobTreeForQueue(queue_name)
+ if not tree:
+ return []
+ return tree.getJobs()
+
+class Change(object):
+ def __init__(self, queue_name, project, number, patchset):
+ self.queue_name = queue_name
+ self.project = project
+ self.number = number
+ self.patchset = patchset
+ self.jobs = {}
+ self.job_urls = {}
+ self.change_ahead = None
+ self.change_behind = None
+ self.running_builds = []
+
+ def __str__(self):
+ return '<Change 0x%x %s,%s>' % (id(self), self.number, self.patchset)
+
+ def formatStatus(self, indent=0):
+ indent_str = ' '*indent
+ ret = ''
+ ret += '%sProject %s change %s,%s\n' % (indent_str,
+ self.project.name,
+ self.number,
+ self.patchset)
+ for job in self.project.getJobs(self.queue_name):
+ result = self.jobs.get(job.name)
+ ret += '%s %s: %s\n' % (indent_str, job.name, result)
+ if self.change_ahead:
+ ret += '%sWaiting on:\n' % (indent_str)
+ ret += self.change_ahead.formatStatus(indent+2)
+ return ret
+
+ def formatReport(self):
+ ret = ''
+ if self.didAllJobsSucceed():
+ ret += 'Build successful\n\n'
+ else:
+ ret += 'Build failed\n\n'
+
+ for job in self.project.getJobs(self.queue_name):
+ result = self.jobs.get(job.name)
+ url = self.job_urls.get(job.name, job.name)
+ ret += '- %s : %s\n' % (url, result)
+ return ret
+
+ def resetAllBuilds(self):
+ self.jobs = {}
+ self.job_urls = {}
+ self.running_builds = []
+
+ def addBuild(self, build):
+ self.running_builds.append(build)
+
+ def setResult(self, build):
+ self.running_builds.remove(build)
+ self.jobs[build.job.name] = build.result
+ self.job_urls[build.job.name] = build.url
+ if build.result != 'SUCCESS':
+ # Get a JobTree from a Job so we can find only its dependent jobs
+ root = self.project.getJobTreeForQueue(self.queue_name)
+ tree = root.getJobTreeForJob(build.job)
+ for job in tree.getJobs():
+ self.jobs[job.name] = 'SKIPPED'
+
+ def _findJobsToRun(self, job_trees):
+ torun = []
+ for tree in job_trees:
+ job = tree.job
+ if job:
+ result = self.jobs.get(job.name, None)
+ else:
+ # This is a null job tree, run all of its jobs
+ result = 'SUCCESS'
+ if not result:
+ if job not in [b.job for b in self.running_builds]:
+ torun.append(job)
+ elif result == 'SUCCESS':
+ torun.extend(self._findJobsToRun(tree.job_trees))
+ return torun
+
+ def findJobsToRun(self):
+ tree = self.project.getJobTreeForQueue(self.queue_name)
+ return self._findJobsToRun(tree.job_trees)
+
+ def areAllJobsComplete(self):
+ tree = self.project.getJobTreeForQueue(self.queue_name)
+ for job in tree.getJobs():
+ if not self.jobs.has_key(job.name):
+ return False
+ return True
+
+ def didAllJobsSucceed(self):
+ for result in self.jobs.values():
+ if result != 'SUCCESS':
+ return False
+ return True
+
+ def delete(self):
+ if self.change_behind:
+ self.change_behind.change_ahead = None
+
+class TriggerEvent(object):
+ def __init__(self):
+ self.data = None
+ self.type = None
+ self.project_name = None
+ self.change_number = None
+ self.patch_number = None
+ self.approvals = []
+ self.branch = None
+ self.ref = None
+
+ def __str__(self):
+ ret = '<TriggerEvent %s %s' % (self.type, self.project_name)
+
+ if self.branch:
+ ret += " %s" % self.branch
+ if self.change_number:
+ ret += " %s,%s" % (self.change_number, self.patch_number)
+ if self.approvals:
+ ret += ' '+', '.join(['%s:%s' % (a['type'], a['value']) for a in self.approvals])
+ ret += '>'
+
+ return ret
+
+class EventFilter(object):
+ def __init__(self, types=[], branches=[], refs=[], approvals=[]):
+ self._types = types
+ self._branches = branches
+ self._refs = refs
+ self.types = [re.compile(x) for x in types]
+ self.branches = [re.compile(x) for x in branches]
+ self.refs = [re.compile(x) for x in refs]
+ self.approvals = approvals
+
+ def __str__(self):
+ ret = '<EventFilter'
+
+ if self._types:
+ ret += ' types: %s' % ', '.join(self._types)
+ if self._branches:
+ ret += ' branches: %s' % ', '.join(self._branches)
+ if self._refs:
+ ret += ' refs: %s' % ', '.join(self._refs)
+ if self.approvals:
+ ret += ' approvals: %s' % ', '.join(['%s:%s' % a for a in self.approvals.items()])
+ ret += '>'
+
+ return ret
+
+ def matches(self, event):
+ def normalizeCategory(name):
+ name = name.lower()
+ return re.sub(' ', '-', name)
+
+ # event types are ORed
+ matches_type = False
+ for etype in self.types:
+ if etype.match(event.type):
+ matches_type = True
+ if self.types and not matches_type:
+ return False
+
+ # branches are ORed
+ matches_branch = False
+ for branch in self.branches:
+ if branch.match(event.branch):
+ matches_branch = True
+ if self.branches and not matches_branch:
+ return False
+
+ # refs are ORed
+ matches_ref = False
+ for ref in self.refs:
+ if ref.match(event.ref):
+ matches_ref = True
+ if self.refs and not matches_ref:
+ return False
+
+ # approvals are ANDed
+ for category, value in self.approvals.items():
+ matches_approval = False
+ for eapproval in event.approvals:
+ if (normalizeCategory(eapproval['description']) == category and
+ int(eapproval['value']) == int(value)):
+ matches_approval = True
+ if not matches_approval: return False
+ return True
diff --git a/zuul/scheduler.py b/zuul/scheduler.py
new file mode 100644
index 0000000..c6570c2
--- /dev/null
+++ b/zuul/scheduler.py
@@ -0,0 +1,436 @@
+# Copyright 2012 Hewlett-Packard Development Company, L.P.
+#
+# 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 os
+import Queue
+import threading
+import logging
+import yaml
+
+
+from model import Job, Change, Project, ChangeQueue, EventFilter
+
+class Scheduler(object):
+ log = logging.getLogger("zuul.Scheduler")
+
+ def __init__(self, config):
+ self.wake_event = threading.Event()
+ self.queue_managers = {}
+ self.jobs = {}
+ self.projects = {}
+ self.launcher = None
+ self.trigger = None
+
+ self.trigger_event_queue = Queue.Queue()
+ self.result_event_queue = Queue.Queue()
+
+ self._parseConfig(config.get('zuul', 'layout_config'))
+
+ def _parseConfig(self, fp):
+ def toList(item):
+ if not item: return []
+ if type(item) == type([]):
+ return item
+ return [item]
+
+ if fp:
+ fp = os.path.expanduser(fp)
+ if not os.path.exists(fp):
+ raise Exception("Unable to read layout config file at %s" % fp)
+ fp = open(fp)
+ data = yaml.load(fp)
+ import pprint
+ pprint.pprint(data)
+
+ for config_queue in data['queue']:
+ manager = globals()[config_queue['manager']](self, config_queue['name'])
+ self.queue_managers[config_queue['name']] = manager
+ manager.success_action = config_queue.get('success')
+ manager.failure_action = config_queue.get('failure')
+ for trigger in toList(config_queue['trigger']):
+ approvals = {}
+ for approval_dict in toList(trigger.get('approval')):
+ for k, v in approval_dict.items():
+ approvals[k]=v
+ f = EventFilter(types=toList(trigger['event']),
+ branches=toList(trigger.get('branch')),
+ refs=toList(trigger.get('ref')),
+ approvals=approvals)
+ manager.event_filters.append(f)
+
+ for config_job in data['jobs']:
+ job = self.getJob(config_job['name'])
+ job.failure_message = config_job.get('failure-message', None)
+ job.success_message = config_job.get('success-message', None)
+ silent = config_job.get('silent', None)
+ if silent:
+ job.silent = True
+ branches = toList(config_job.get('branch'))
+ if branches:
+ f = EventFilter(branches=branches)
+ job.event_filters.append(f)
+
+ def add_jobs(job_tree, config_jobs):
+ for job in config_jobs:
+ if isinstance(job, list):
+ for x in job:
+ add_jobs(job_tree, x)
+ if isinstance(job, dict):
+ for parent, children in job.items():
+ parent_tree = job_tree.addJob(self.getJob(parent))
+ add_jobs(parent_tree, children)
+ if isinstance(job, str):
+ job_tree.addJob(self.getJob(job))
+
+ for config_project in data['projects']:
+ project = Project(config_project['name'])
+ self.projects[config_project['name']] = project
+ for qname in self.queue_managers.keys():
+ if config_project.has_key(qname):
+ print project, qname
+ job_tree = project.addQueue(qname)
+ config_jobs = config_project[qname]
+ add_jobs(job_tree, config_jobs)
+
+
+ # TODO(jeblair): check that we don't end up with jobs like
+ # "foo - bar" because a ':' is missing in the yaml for a dependent job
+ for manager in self.queue_managers.values():
+ manager._postConfig()
+
+ def getJob(self, name):
+ if self.jobs.has_key(name):
+ return self.jobs[name]
+ job = Job(name)
+ self.jobs[name] = job
+ return job
+
+ def setLauncher(self, launcher):
+ self.launcher = launcher
+
+ def setTrigger(self, trigger):
+ self.trigger = trigger
+
+ def addEvent(self, event):
+ self.log.debug("Adding trigger event: %s" % event)
+ self.trigger_event_queue.put(event)
+ self.wake_event.set()
+
+ def onBuildCompleted(self, build):
+ self.log.debug("Adding result event for build: %s" % build)
+ self.result_event_queue.put(build)
+ self.wake_event.set()
+
+ def run(self):
+ while True:
+ self.log.debug("Run handler sleeping")
+ self.wake_event.wait()
+ self.wake_event.clear()
+ self.log.debug("Run handler awake")
+ try:
+ if not self.trigger_event_queue.empty():
+ self.process_event_queue()
+ if not self.result_event_queue.empty():
+ self.process_result_queue()
+ except:
+ self.log.exception("Exception in run handler:")
+
+ def process_event_queue(self):
+ self.log.debug("Fetching trigger event")
+ event = self.trigger_event_queue.get()
+ self.log.debug("Processing trigger event %s" % event)
+ project = self.projects.get(event.project_name)
+ if not project:
+ self.log.warning("Project %s not found" % event.project_name)
+ return
+
+ for manager in self.queue_managers.values():
+ if not manager.eventMatches(event):
+ self.log.debug("Event %s ignored by %s" % (event, manager))
+ continue
+ if event.change_number:
+ change = Change(manager.name, project,
+ event.change_number, event.patch_number)
+ self.log.info("Adding %s, %s to to %s" % (
+ project, change, manager))
+ manager.addChange(change)
+
+ def process_result_queue(self):
+ self.log.debug("Fetching result event")
+ build = self.result_event_queue.get()
+ self.log.debug("Processing result event %s" % build)
+ for manager in self.queue_managers.values():
+ if manager.onBuildCompleted(build):
+ return
+
+class BaseQueueManager(object):
+ log = logging.getLogger("zuul.BaseQueueManager")
+
+ def __init__(self, sched, name):
+ self.sched = sched
+ self.name = name
+ self.building_jobs = {}
+ self.event_filters = []
+ self.success_action = {}
+ self.failure_action = {}
+
+ def __str__(self):
+ return "<%s %s>" % (self.__class__.__name__, self.name)
+
+ def _postConfig(self):
+ self.log.info("Configured Queue Manager %s" % self.name)
+ self.log.info(" Events:")
+ for e in self.event_filters:
+ self.log.info(" %s" % e)
+ self.log.info(" Projects:")
+ def log_jobs(tree, indent=0):
+ istr = ' '+' '*indent
+ if tree.job:
+ efilters = ''
+ for e in tree.job.event_filters:
+ efilters += str(e)
+ if efilters:
+ efilters = ' '+efilters
+ self.log.info("%s%s%s" % (istr, repr(tree.job), efilters))
+ for x in tree.job_trees:
+ log_jobs(x, indent+2)
+ for p in self.sched.projects.values():
+ if p.hasQueue(self.name):
+ self.log.info(" %s" % p)
+ log_jobs(p.getJobTreeForQueue(self.name))
+ if self.success_action:
+ self.log.info(" On success:")
+ self.log.info(" %s" % self.success_action)
+ if self.failure_action:
+ self.log.info(" On failure:")
+ self.log.info(" %s" % self.failure_action)
+
+
+ def eventMatches(self, event):
+ for ef in self.event_filters:
+ print ef
+ if ef.matches(event):
+ return True
+ return False
+
+
+ def addChange(self, change):
+ self.log.debug("Adding change %s" % change)
+ self.launchJobs(change)
+
+ def launchJobs(self, change):
+ self.log.debug("Launching jobs for change %s" % change)
+ for job in change.findJobsToRun():
+ self.log.debug("Found job %s for change %s" % (job, change))
+ try:
+ build = self.sched.launcher.launch(job, change)
+ self.building_jobs[build] = change
+ self.log.debug("Adding build %s of job %s to change %s" % (
+ build, job, change))
+ change.addBuild(build)
+ except:
+ self.log.exception("Exception while launching job %s for change %s:" % (
+ job, change))
+
+ def onBuildCompleted(self, build):
+ self.log.debug("Build %s completed" % build)
+ if not self.building_jobs.has_key(build):
+ self.log.warning("Build %s not found (may have been canceled)" % (
+ build))
+ # Or triggered externally, or triggered before zuul started,
+ # or restarted
+ return False
+ change = self.building_jobs[build]
+ self.log.debug("Found change %s which triggered completed build %s" % (
+ change, build))
+
+ del self.building_jobs[build]
+
+ change.setResult(build)
+ self.log.info("Change %s status is now:\n %s" % (
+ change, change.formatStatus()))
+
+ if change.areAllJobsComplete():
+ self.log.debug("All jobs for change %s are complete" % change)
+ self.possiblyReportChange(change)
+ else:
+ # There may be jobs that depended on jobs that are now complete
+ self.log.debug("All jobs for change %s are not yet complete" % (
+ change))
+ self.launchJobs(change)
+ return True
+
+ def possiblyReportChange(self, change):
+ self.log.debug("Possibly reporting change %s" % change)
+ self.reportChange(change)
+
+ def reportChange(self, change):
+ self.log.debug("Reporting change %s" % change)
+ ret = None
+ if change.didAllJobsSucceed():
+ action = self.success_action
+ else:
+ action = self.failure_action
+ try:
+ self.log.info("Reporting change %s, action: %s" % (
+ change, action))
+ ret = self.sched.trigger.report(change, change.formatReport(),
+ action)
+ if ret:
+ self.log.error("Reporting change %s received: %s" % (
+ change, ret))
+ print ret
+ except:
+ self.log.exception("Exception while reporting:")
+ return ret
+
+class IndependentQueueManager(BaseQueueManager):
+ log = logging.getLogger("zuul.IndependentQueueManager")
+ pass
+
+class DependentQueueManager(BaseQueueManager):
+ log = logging.getLogger("zuul.DependentQueueManager")
+
+ def __init__(self, *args, **kwargs):
+ super(DependentQueueManager, self).__init__(*args, **kwargs)
+ self.change_queues = []
+
+ def _postConfig(self):
+ super(DependentQueueManager, self)._postConfig()
+ self.buildChangeQueues()
+
+ def buildChangeQueues(self):
+ self.log.debug("Building shared change queues")
+ change_queues = []
+
+ for project in self.sched.projects.values():
+ if project.hasQueue(self.name):
+ change_queue = ChangeQueue(self.name)
+ change_queue.addProject(project)
+ change_queues.append(change_queue)
+ self.log.debug("Created queue: %s" % change_queue)
+
+ self.log.debug("Combining shared queues")
+ new_change_queues = []
+ for a in change_queues:
+ merged_a = False
+ for b in new_change_queues:
+ if not a.getJobs().isdisjoint(b.getJobs()):
+ self.log.debug("Merging queue %s into %s" % (a, b))
+ b.mergeChangeQueue(a)
+ merged_a = True
+ break # this breaks out of 'for b' and continues 'for a'
+ if not merged_a:
+ self.log.debug("Keeping queue %s" % (a))
+ new_change_queues.append(a)
+
+ self.change_queues = new_change_queues
+ self.log.info(" Shared change queues:")
+ for x in self.change_queues:
+ self.log.info(" %s" % x)
+
+ def getQueue(self, project):
+ for queue in self.change_queues:
+ if project in queue.projects:
+ return queue
+ self.log.error("Unable to find change queue for project %s" % project)
+
+ def addChange(self, change):
+ self.log.debug("Adding change %s" % change)
+ change_queue = self.getQueue(change.project)
+ self.log.debug("Adding change %s to queue %s" % (change, change_queue))
+ change_queue.enqueueChange(change)
+ super(DependentQueueManager, self).addChange(change)
+
+ def _getDependentChanges(self, change):
+ changes = []
+ while change.change_ahead:
+ changes.append(change.change_ahead)
+ change = change.change_ahead
+ self.log.info("Change %s depends on changes %s" % (change, changes))
+ return changes
+
+ def launchJobs(self, change):
+ self.log.debug("Launching jobs for change %s" % change)
+ dependent_changes = self._getDependentChanges(change)
+ for job in change.findJobsToRun():
+ self.log.debug("Found job %s for change %s" % (job, change))
+ try:
+ build = self.sched.launcher.launch(job, change,
+ dependent_changes)
+ self.building_jobs[build] = change
+ self.log.debug("Adding build %s of job %s to change %s" % (
+ build, job, change))
+ change.addBuild(build)
+ except:
+ self.log.exception("Exception while launching job %s for change %s:" % (
+ job, change))
+ if change.change_behind:
+ self.log.debug("Launching jobs for change %s, behind change %s" % (
+ change.change_behind, change))
+ self.launchJobs(change.change_behind)
+
+ def cancelJobs(self, change):
+ self.log.debug("Cancel jobs for change %s" % change)
+ to_remove = []
+ change.resetAllBuilds()
+ for build, build_change in self.building_jobs.items():
+ if build_change == change:
+ self.log.debug("Found build %s for change %s to cancel" % (
+ build, change))
+ try:
+ self.sched.launcher.cancel(build)
+ except:
+ self.log.exception("Exception while canceling build %s for change %s" % (
+ build, change))
+ to_remove.append(build)
+ for build in to_remove:
+ self.log.debug("Removing build %s from running builds" % build)
+ del self.building_jobs[build]
+ if change.change_behind:
+ self.log.debug("Canceling jobs for change %s, behind change %s" % (
+ change.change_behind, change))
+ self.cancelJobs(change.change_behind)
+
+ def possiblyReportChange(self, change):
+ self.log.debug("Possibly reporting change %s" % change)
+ if not change.change_ahead:
+ self.log.debug("Change %s is at the front of the queue, reporting" % (
+ change))
+ ret = self.reportChange(change)
+ self.log.debug("Removing reported change %s from queue" % change)
+ change.delete()
+ change.queue.dequeueChange(change)
+ merged = (not ret)
+ if merged:
+ merged = self.sched.trigger.isMerged(change)
+ succeeded = change.didAllJobsSucceed()
+ self.log.info("Reported change %s status: all-succeeded: %s, merged: %s" % (
+ change, succeeded, merged))
+
+ if not (succeeded and merged):
+ self.log.debug("Reported change %s failed tests or failed to merge" % (
+ change))
+ # The merge or test failed, re-run all jobs behind this one
+ if change.change_behind:
+ self.log.info("Canceling/relaunching jobs for change %s behind failed change %s" % (
+ change.change_behind, change))
+ self.cancelJobs(change.change_behind)
+ self.launchJobs(change.change_behind)
+ # If the change behind this is ready, notify
+ if (change.change_behind and
+ change.change_behind.areAllJobsComplete()):
+ self.log.info("Change %s behind change %s is ready, possibly reporting" % (
+ change.change_behind, change))
+ self.possiblyReportChange(change.change_behind)
diff --git a/zuul/trigger/__init__.py b/zuul/trigger/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/zuul/trigger/__init__.py
diff --git a/zuul/trigger/gerrit.py b/zuul/trigger/gerrit.py
new file mode 100644
index 0000000..8708207
--- /dev/null
+++ b/zuul/trigger/gerrit.py
@@ -0,0 +1,92 @@
+# Copyright 2012 Hewlett-Packard Development Company, L.P.
+#
+# 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 threading
+import logging
+from zuul.lib import gerrit
+from zuul.model import TriggerEvent
+
+class GerritEventConnector(threading.Thread):
+ """Move events from Gerrit to the scheduler."""
+
+ log = logging.getLogger("zuul.GerritEventConnector")
+
+ def __init__(self, gerrit, sched):
+ super(GerritEventConnector, self).__init__()
+ self.gerrit = gerrit
+ self.sched = sched
+
+
+ def _handleEvent(self):
+ data = self.gerrit.getEvent()
+ event = TriggerEvent()
+ event.type = data.get('type')
+ change = data.get('change')
+ if change:
+ event.project_name = change.get('project')
+ event.branch = change.get('branch')
+ event.change_number = change.get('number')
+ patchset = data.get('patchSet')
+ if patchset:
+ event.patch_number = patchset.get('number')
+ event.approvals = data.get('approvals')
+ self.sched.addEvent(event)
+
+
+ def run(self):
+ while True:
+ try:
+ self._handleEvent()
+ except:
+ self.log.exception("Exception moving Gerrit event:")
+
+
+class Gerrit(object):
+ log = logging.getLogger("zuul.Gerrit")
+
+ def __init__(self, config, sched):
+ self.sched = sched
+ server = config.get('gerrit', 'server')
+ user = config.get('gerrit', 'user')
+ if config.has_option('gerrit', 'sshkey'):
+ sshkey = config.get('gerrit', 'sshkey')
+ else:
+ sshkey = None
+ self.gerrit = gerrit.Gerrit(server, user, sshkey)
+ self.gerrit.startWatching()
+ self.gerrit_connector = GerritEventConnector(
+ self.gerrit, sched)
+ self.gerrit_connector.start()
+
+
+ def report(self, change, message, action):
+ self.log.debug("Report change %s, action %s, message: %s" %
+ (change, action, message))
+ changeid = '%s,%s' % (change.number, change.patchset)
+ return self.gerrit.review(change.project.name, changeid,
+ message, action)
+
+
+ def isMerged(self, change):
+ self.log.debug("Checking if change %s is merged", change)
+ data = self.gerrit.query(change.number)
+ if not data:
+ return False
+ status = data.get('status')
+ if not status:
+ return False
+ self.log.debug("Change %s status: %s" % (change, status))
+ if status == 'MERGED' or status == 'SUBMITTED':
+ return True
+