master/buildbot/schedulers/triggerable.py
author ffxbld
Mon, 21 Dec 2015 18:45:46 -0500
branchproduction-0.8
changeset 1524 41a18e6acefa63abe567cb0ad73e1c85d02e8f3e
parent 78 42babfd9ed35458f5acc07b4a0302f6b42304c71
child 139 6cf864606526c53c6d68a4ee3d4b1aec5db2c204
permissions -rw-r--r--
Added FIREFOX_38_5_2esr_RELEASE FIREFOX_38_5_2esr_BUILD1 tag(s) for changeset production-0.8. DONTBUILD CLOSED TREE a=release

# ***** BEGIN LICENSE BLOCK *****
# Version: MPL 1.1/GPL 2.0/LGPL 2.1
#
# The contents of this file are subject to the Mozilla Public License Version
# 1.1 (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.mozilla.org/MPL/
#
# Software distributed under the License is distributed on an "AS IS" basis,
# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
# for the specific language governing rights and limitations under the
# License.
#
# The Original Code is Mozilla-specific Buildbot steps.
#
# The Initial Developer of the Original Code is
# Mozilla Foundation.
# Portions created by the Initial Developer are Copyright (C) 2009
# the Initial Developer. All Rights Reserved.
#
# Contributor(s):
#   Brian Warner <warner@lothar.com>
#
# Alternatively, the contents of this file may be used under the terms of
# either the GNU General Public License Version 2 or later (the "GPL"), or
# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
# in which case the provisions of the GPL or the LGPL are applicable instead
# of those above. If you wish to allow use of your version of this file only
# under the terms of either the GPL or the LGPL, and not to allow others to
# use your version of this file under the terms of the MPL, indicate your
# decision by deleting the provisions above and replace them with the notice
# and other provisions required by the GPL or the LGPL. If you do not delete
# the provisions above, a recipient may use your version of this file under
# the terms of any one of the MPL, the GPL or the LGPL.
#
# ***** END LICENSE BLOCK *****

from twisted.internet import reactor, defer
from buildbot.schedulers import base
from buildbot.process.properties import Properties

class Triggerable(base.BaseScheduler):
    """This scheduler doesn't do anything until it is triggered by a Trigger
    step in a factory. In general, that step will not complete until all of
    the builds that I fire have finished.
    """

    compare_attrs = ('name', 'builderNames', 'properties')
    def __init__(self, name, builderNames, properties={}):
        base.BaseScheduler.__init__(self, name, builderNames, properties)
        self._waiters = {}
        self.reason = "Triggerable(%s)" % name

    def trigger(self, ss, set_props=None):
        """Trigger this scheduler. Returns a deferred that will fire when the
        buildset is finished.
        """

        # properties for this buildset are composed of our own properties,
        # potentially overridden by anything from the triggering build
        props = Properties()
        props.updateFromProperties(self.properties)
        if set_props:
            props.updateFromProperties(set_props)

        d = self.parent.db.runInteraction(self._trigger, ss, props)
        # this returns a Deferred that fires when the buildset is complete,
        # with the buildset results (SUCCESS or FAILURE). This Deferred is
        # not persistent: if the master is bounced, the "upstream" build (the
        # one which used steps.trigger.Trigger) will disappear anyways.
        def _done(res):
            return res[0] # chain the Deferred
        d.addCallback(_done)
        return d

    def _trigger(self, t, ss, props):
        db = self.parent.db
        ssid = db.get_sourcestampid(ss, t)
        bsid = self.create_buildset(ssid, self.reason, t, props)
        self._waiters[bsid] = d = defer.Deferred()
        db.scheduler_subscribe_to_buildset(self.schedulerid, bsid, t)
        reactor.callFromThread(self.parent.master.triggerSlaveManager)
        return (d,) # apparently you can't return Deferreds from runInteraction

    def run(self):
        # this exists just to notify triggerers that the builds they
        # triggered are now done, i.e. if buildbot.steps.trigger.Trigger is
        # called with waitForFinish=True.
        d = self.parent.db.runInteraction(self._run)
        return d
    def _run(self, t):
        db = self.parent.db
        res = db.scheduler_get_subscribed_buildsets(self.schedulerid, t)
        # this returns bsid,ssid,results for all of our active subscriptions
        for (bsid,ssid,complete,results) in res:
            if complete:
                d = self._waiters.pop(bsid, None)
                if d:
                    reactor.callFromThread(d.callback, results)
                db.scheduler_unsubscribe_buildset(self.schedulerid, bsid, t)
        return None