| # Copyright 2014 Google Inc. All Rights Reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| """Utilities for launching and accessing ChromeOS buildbots.""" |
| |
| from __future__ import print_function |
| |
| import os |
| import time |
| import urllib2 |
| |
| from utils import command_executer |
| from utils import logger |
| from utils import buildbot_json |
| |
| SLEEP_TIME = 600 # 10 minutes; time between polling of buildbot. |
| TIME_OUT = 18000 # Decide the build is dead or will never finish |
| # after this time (5 hours). |
| OK_STATUS = [ # List of result status values that are 'ok'. |
| # This was obtained from: |
| # https://chromium.googlesource.com/chromium/tools/build/+/ |
| # master/third_party/buildbot_8_4p1/buildbot/status/results.py |
| 0, # "success" |
| 1, # "warnings" |
| 6, # "retry" |
| ] |
| |
| |
| class BuildbotTimeout(Exception): |
| """Exception to throw when a buildbot operation timesout.""" |
| pass |
| |
| |
| def ParseReportLog(url, build): |
| """Scrape the trybot image name off the Reports log page. |
| |
| This takes the URL for a trybot Reports Stage web page, |
| and a trybot build type, such as 'daisy-release'. It |
| opens the web page and parses it looking for the trybot |
| artifact name (e.g. something like |
| 'trybot-daisy-release/R40-6394.0.0-b1389'). It returns the |
| artifact name, if found. |
| """ |
| trybot_image = '' |
| url += '/text' |
| newurl = url.replace('uberchromegw', 'chromegw') |
| webpage = urllib2.urlopen(newurl) |
| data = webpage.read() |
| lines = data.split('\n') |
| for l in lines: |
| if l.find('Artifacts') > 0 and l.find('trybot') > 0: |
| trybot_name = 'trybot-%s' % build |
| start_pos = l.find(trybot_name) |
| end_pos = l.find('@https://storage') |
| trybot_image = l[start_pos:end_pos] |
| |
| return trybot_image |
| |
| |
| def GetBuildData(buildbot_queue, build_id): |
| """Find the Reports stage web page for a trybot build. |
| |
| This takes the name of a buildbot_queue, such as 'daisy-release' |
| and a build id (the build number), and uses the json buildbot api to |
| find the Reports stage web page for that build, if it exists. |
| """ |
| builder = buildbot_json.Buildbot( |
| 'http://chromegw/p/tryserver.chromiumos/').builders[buildbot_queue] |
| build_data = builder.builds[build_id].data |
| logs = build_data['logs'] |
| for l in logs: |
| fname = l[1] |
| if 'steps/Report/' in fname: |
| return fname |
| |
| return '' |
| |
| |
| def FindBuildRecordFromLog(description, log_info): |
| """Find the right build record in the build logs. |
| |
| Get the first build record from build log with a reason field |
| that matches 'description'. ('description' is a special tag we |
| created when we launched the buildbot, so we could find it at this |
| point.) |
| """ |
| |
| current_line = 1 |
| while current_line < len(log_info): |
| my_dict = {} |
| # Read all the lines from one "Build" to the next into my_dict |
| while True: |
| key = log_info[current_line].split(':')[0].strip() |
| value = log_info[current_line].split(':', 1)[1].strip() |
| my_dict[key] = value |
| current_line += 1 |
| if 'Build' in key or current_line == len(log_info): |
| break |
| try: |
| # Check to see of the build record is the right one. |
| if str(description) in my_dict['reason']: |
| # We found a match; we're done. |
| return my_dict |
| except KeyError: |
| print("reason is not in dictionary: '%s'" % repr(my_dict)) |
| else: |
| # Keep going. |
| continue |
| |
| # We hit the bottom of the log without a match. |
| return {} |
| |
| |
| def GetBuildInfo(file_dir, builder): |
| """Get all the build records for the trybot builds. |
| |
| file_dir is the toolchain_utils directory. |
| """ |
| ce = command_executer.GetCommandExecuter() |
| commands = ('{0}/utils/buildbot_json.py builds ' |
| 'http://chromegw/i/tryserver.chromiumos/'.format(file_dir)) |
| |
| if builder: |
| # For release builds, get logs from the 'release' builder. |
| if builder.endswith('-release'): |
| commands += ' -b release' |
| else: |
| commands += ' -b %s' % builder |
| _, buildinfo, _ = ce.RunCommandWOutput(commands, print_to_console=False) |
| build_log = buildinfo.splitlines() |
| return build_log |
| |
| |
| def FindArchiveImage(chromeos_root, build, build_id): |
| """Returns name of the trybot artifact for board/build_id.""" |
| ce = command_executer.GetCommandExecuter() |
| command = ('gsutil ls gs://chromeos-image-archive/trybot-%s/*b%s' |
| '/chromiumos_test_image.tar.xz' % (build, build_id)) |
| _, out, _ = ce.ChrootRunCommandWOutput(chromeos_root, |
| command, |
| print_to_console=False) |
| # |
| # If build_id is not unique, there may be multiple archive images |
| # to choose from; sort them & pick the first (newest). |
| # |
| # If there are multiple archive images found, out will look something |
| # like this: |
| # |
| # 'gs://.../R35-5692.0.0-b105/chromiumos_test_image.tar.xz |
| # gs://.../R46-7339.0.0-b105/chromiumos_test_image.tar.xz' |
| # |
| out = out.rstrip('\n') |
| tmp_list = out.split('\n') |
| # After stripping the final '\n' and splitting on any other '\n', we get |
| # something like this: |
| # tmp_list = [ 'gs://.../R35-5692.0.0-b105/chromiumos_test_image.tar.xz' , |
| # 'gs://.../R46-7339.0.0-b105/chromiumos_test_image.tar.xz' ] |
| # |
| # If we sort this in descending order, we should end up with the most |
| # recent test image first, so that's what we do here. |
| # |
| if len(tmp_list) > 1: |
| tmp_list = sorted(tmp_list, reverse=True) |
| out = tmp_list[0] |
| |
| trybot_image = '' |
| trybot_name = 'trybot-%s' % build |
| if out and out.find(trybot_name) > 0: |
| start_pos = out.find(trybot_name) |
| end_pos = out.find('/chromiumos_test_image') |
| trybot_image = out[start_pos:end_pos] |
| |
| return trybot_image |
| |
| |
| def GetTrybotImage(chromeos_root, |
| buildbot_name, |
| patch_list, |
| build_tag, |
| build_toolchain=False): |
| """Launch buildbot and get resulting trybot artifact name. |
| |
| This function launches a buildbot with the appropriate flags to |
| build the test ChromeOS image, with the current ToT mobile compiler. It |
| checks every 10 minutes to see if the trybot has finished. When the trybot |
| has finished, it parses the resulting report logs to find the trybot |
| artifact (if one was created), and returns that artifact name. |
| |
| chromeos_root is the path to the ChromeOS root, needed for finding chromite |
| and launching the buildbot. |
| |
| buildbot_name is the name of the buildbot queue, such as lumpy-release or |
| daisy-paladin. |
| |
| patch_list a python list of the patches, if any, for the buildbot to use. |
| |
| build_tag is a (unique) string to be used to look up the buildbot results |
| from among all the build records. |
| """ |
| ce = command_executer.GetCommandExecuter() |
| cbuildbot_path = os.path.join(chromeos_root, 'chromite/cbuildbot') |
| base_dir = os.getcwd() |
| patch_arg = '' |
| if patch_list: |
| for p in patch_list: |
| patch_arg = patch_arg + ' -g ' + repr(p) |
| toolchain_flags = '' |
| if build_toolchain: |
| toolchain_flags += '--latest-toolchain' |
| os.chdir(cbuildbot_path) |
| |
| # Launch buildbot with appropriate flags. |
| build = buildbot_name |
| description = build_tag |
| command = ('./cbuildbot --remote --nochromesdk --notests' |
| ' --remote-description=%s %s %s %s' % |
| (description, toolchain_flags, patch_arg, build)) |
| _, out, _ = ce.RunCommandWOutput(command) |
| if 'Tryjob submitted!' not in out: |
| logger.GetLogger().LogFatal('Error occurred while launching trybot job: ' |
| '%s' % command) |
| os.chdir(base_dir) |
| |
| build_id = 0 |
| build_status = None |
| # Wait for buildbot to finish running (check every 10 minutes). Wait |
| # 10 minutes before the first check to give the buildbot time to launch |
| # (so we don't start looking for build data before it's out there). |
| time.sleep(SLEEP_TIME) |
| done = False |
| pending = True |
| # pending_time is the time between when we submit the job and when the |
| # buildbot actually launches the build. running_time is the time between |
| # when the buildbot job launches and when it finishes. The job is |
| # considered 'pending' until we can find an entry for it in the buildbot |
| # logs. |
| pending_time = SLEEP_TIME |
| running_time = 0 |
| while not done: |
| done = True |
| build_info = GetBuildInfo(base_dir, build) |
| if not build_info: |
| if pending_time > TIME_OUT: |
| logger.GetLogger().LogFatal('Unable to get build logs for target %s.' % |
| build) |
| else: |
| pending_message = 'Unable to find build log; job may be pending.' |
| done = False |
| |
| if done: |
| data_dict = FindBuildRecordFromLog(description, build_info) |
| if not data_dict: |
| # Trybot job may be pending (not actually launched yet). |
| if pending_time > TIME_OUT: |
| logger.GetLogger().LogFatal('Unable to find build record for trybot' |
| ' %s.' % description) |
| else: |
| pending_message = 'Unable to find build record; job may be pending.' |
| done = False |
| |
| else: |
| # Now that we have actually found the entry for the build |
| # job in the build log, we know the job is actually |
| # runnning, not pending, so we flip the 'pending' flag. We |
| # still have to wait for the buildbot job to finish running |
| # however. |
| pending = False |
| if 'True' in data_dict['completed']: |
| build_id = data_dict['number'] |
| build_status = int(data_dict['result']) |
| else: |
| done = False |
| |
| if not done: |
| if pending: |
| logger.GetLogger().LogOutput(pending_message) |
| logger.GetLogger().LogOutput('Current pending time: %d minutes.' % |
| (pending_time / 60)) |
| pending_time += SLEEP_TIME |
| else: |
| logger.GetLogger().LogOutput('{0} minutes passed.'.format(running_time / |
| 60)) |
| logger.GetLogger().LogOutput('Sleeping {0} seconds.'.format(SLEEP_TIME)) |
| running_time += SLEEP_TIME |
| |
| time.sleep(SLEEP_TIME) |
| if running_time > TIME_OUT: |
| done = True |
| |
| trybot_image = '' |
| |
| if build_status in OK_STATUS: |
| trybot_image = FindArchiveImage(chromeos_root, build, build_id) |
| if not trybot_image: |
| logger.GetLogger().LogError('Trybot job %s failed with status %d;' |
| ' no trybot image generated.' % |
| (description, build_status)) |
| |
| logger.GetLogger().LogOutput("trybot_image is '%s'" % trybot_image) |
| logger.GetLogger().LogOutput('build_status is %d' % build_status) |
| return trybot_image |
| |
| |
| def DoesImageExist(chromeos_root, build): |
| """Check if the image for the given build exists.""" |
| |
| ce = command_executer.GetCommandExecuter() |
| command = ('gsutil ls gs://chromeos-image-archive/%s' |
| '/chromiumos_test_image.tar.xz' % (build)) |
| ret = ce.ChrootRunCommand(chromeos_root, command, print_to_console=False) |
| return not ret |
| |
| |
| def WaitForImage(chromeos_root, build): |
| """Wait for an image to be ready.""" |
| |
| elapsed_time = 0 |
| while elapsed_time < TIME_OUT: |
| if DoesImageExist(chromeos_root, build): |
| return |
| logger.GetLogger().LogOutput('Image %s not ready, waiting for 10 minutes' % |
| build) |
| time.sleep(SLEEP_TIME) |
| elapsed_time += SLEEP_TIME |
| |
| logger.GetLogger().LogOutput('Image %s not found, waited for %d hours' % |
| (build, (TIME_OUT / 3600))) |
| raise BuildbotTimeout('Timeout while waiting for image %s' % build) |