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# Copyright (C) 2013 Google Inc. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
import datetime
import json
import logging
import sys
import traceback
import urllib2
import webapp2
from google.appengine.api import memcache
MASTERS = [
{'name': 'ChromiumWin', 'url': 'http://build.chromium.org/p/chromium.win', 'groups': ['@ToT Chromium']},
{'name': 'ChromiumMac', 'url': 'http://build.chromium.org/p/chromium.mac', 'groups': ['@ToT Chromium']},
{'name': 'ChromiumLinux', 'url': 'http://build.chromium.org/p/chromium.linux', 'groups': ['@ToT Chromium']},
{'name': 'ChromiumChromiumOS', 'url': 'http://build.chromium.org/p/chromium.chromiumos', 'groups': ['@ToT ChromeOS']},
{'name': 'ChromiumGPU', 'url': 'http://build.chromium.org/p/chromium.gpu', 'groups': ['@ToT Chromium']},
{'name': 'ChromiumGPUFYI', 'url': 'http://build.chromium.org/p/chromium.gpu.fyi', 'groups': ['@ToT Chromium FYI']},
{'name': 'ChromiumPerfAv', 'url': 'http://build.chromium.org/p/chromium.perf_av', 'groups': ['@ToT Chromium']},
{'name': 'ChromiumWebkit', 'url': 'http://build.chromium.org/p/chromium.webkit', 'groups': ['@ToT Chromium', '@ToT Blink']},
{'name': 'ChromiumFYI', 'url': 'http://build.chromium.org/p/chromium.fyi', 'groups': ['@ToT Chromium FYI']},
{'name': 'V8', 'url': 'http://build.chromium.org/p/client.v8', 'groups': ['@ToT V8']},
]
class FetchBuildersException(Exception): pass
def master_json_url(master_url):
return master_url + '/json/builders'
def builder_json_url(master_url, builder):
return master_json_url(master_url) + '/' + urllib2.quote(builder)
def cached_build_json_url(master_url, builder, build_number):
return builder_json_url(master_url, builder) + '/builds/' + str(build_number)
def fetch_json(url):
logging.debug('Fetching %s' % url)
fetched_json = {}
try:
resp = urllib2.urlopen(url)
except:
exc_info = sys.exc_info()
logging.warning('Error while fetching %s: %s', url, exc_info[1])
return fetched_json
try:
fetched_json = json.load(resp)
except:
exc_info = sys.exc_info()
logging.warning('Unable to parse JSON response from %s: %s', url, exc_info[1])
return fetched_json
def get_latest_build(build_data):
cached_builds = []
if 'cachedBuilds' in build_data:
cached_builds = build_data['cachedBuilds']
current_builds = build_data['currentBuilds']
latest_cached_builds = set(cached_builds) - set(current_builds)
if len(latest_cached_builds) != 0:
latest_cached_builds = sorted(list(latest_cached_builds))
latest_build = latest_cached_builds[-1]
elif len(current_builds) != 0:
latest_build = current_builds[0]
else:
basedir = build_data['basedir'] if 'basedir' in build_data else 'current builder'
logging.info('No cached or current builds for %s', basedir)
return None
return latest_build
def dump_json(data):
return json.dumps(data, separators=(',', ':'), sort_keys=True)
def fetch_buildbot_data(masters, force_update=False):
if force_update:
logging.info('Starting a forced buildbot update. Failure to fetch a master\'s data will not abort the fetch.')
start_time = datetime.datetime.now()
master_data = masters[:]
for master in master_data:
master_url = master['url']
tests_object = master.setdefault('tests', {})
master['tests'] = tests_object
builders = fetch_json(master_json_url(master_url))
if not builders:
msg = 'Could not fetch builders from master "%s": %s.' % (master['name'], master_url)
logging.warning(msg)
if force_update:
continue
else:
logging.warning('Aborting fetch.')
raise FetchBuildersException(msg)
for builder in builders:
build_data = fetch_json(builder_json_url(master_url, builder))
latest_build = get_latest_build(build_data)
if not latest_build:
logging.info('Skipping builder %s because it lacked cached or current builds.', builder)
continue
build = fetch_json(cached_build_json_url(master_url, builder, latest_build))
if not build:
logging.info('Skipping build %s on builder %s due to empty data', latest_build, builder)
for step in build['steps']:
step_name = step['name']
is_test_step = 'test' in step_name and 'archive' not in step_name and 'Run tests' not in step_name
if not is_test_step:
continue
if step_name == 'webkit_tests':
step_name = 'layout-tests'
tests_object.setdefault(step_name, {'builders': []})
tests_object[step_name]['builders'].append(builder)
for builders in tests_object.values():
builders['builders'].sort()
output_data = {'masters': master_data}
delta = datetime.datetime.now() - start_time
logging.info('Fetched buildbot data in %s seconds.', delta.seconds)
return dump_json(output_data)
class UpdateBuilders(webapp2.RequestHandler):
"""Fetch and update the cached buildbot data."""
def get(self):
force_update = True if self.request.get('force') else False
try:
buildbot_data = fetch_buildbot_data(MASTERS, force_update)
memcache.set('buildbot_data', buildbot_data)
self.response.set_status(200)
self.response.out.write("ok")
except FetchBuildersException, ex:
logging.error('Not updating builders because fetch failed: %s', str(ex))
self.response.set_status(500)
self.response.out.write(ex.message)
class GetBuilders(webapp2.RequestHandler):
"""Return a list of masters mapped to their respective builders, possibly using cached data."""
def get(self):
callback = self.request.get('callback')
buildbot_data = memcache.get('buildbot_data')
if not buildbot_data:
logging.warning('No buildbot data in memcache. If this message repeats, something is probably wrong with memcache.')
# Since we have no cached buildbot data, we would rather have missing masters than no data at all.
buildbot_data = fetch_buildbot_data(MASTERS, True)
try:
memcache.set('buildbot_data', buildbot_data)
except ValueError, err:
logging.error(str(err))
if callback:
buildbot_data = callback + '(' + buildbot_data + ');'
self.response.out.write(buildbot_data)
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