# Copyright (c) 2012 The Chromium OS Authors. All rights reserved. # Use of this source code is governed by a BSD-style license that can be # found in the LICENSE file. """A library to generate and store the manifests for cros builders to use. """ import cPickle import fnmatch import glob import logging import os import re import shutil import tempfile from chromite.cbuildbot import constants from chromite.cbuildbot import repository from chromite.lib import cidb from chromite.lib import cros_build_lib from chromite.lib import git from chromite.lib import gs from chromite.lib import osutils from chromite.lib import timeout_util BUILD_STATUS_URL = '%s/builder-status' % constants.MANIFEST_VERSIONS_GS_URL PUSH_BRANCH = 'temp_auto_checkin_branch' NUM_RETRIES = 20 class VersionUpdateException(Exception): """Exception gets thrown for failing to update the version file""" class StatusUpdateException(Exception): """Exception gets thrown for failure to update the status""" class GenerateBuildSpecException(Exception): """Exception gets thrown for failure to Generate a buildspec for the build""" class BuildSpecsValueError(Exception): """Exception gets thrown when a encountering invalid values.""" def RefreshManifestCheckout(manifest_dir, manifest_repo): """Checks out manifest-versions into the manifest directory. If a repository is already present, it will be cleansed of any local changes and restored to its pristine state, checking out the origin. """ reinitialize = True if os.path.exists(manifest_dir): result = git.RunGit(manifest_dir, ['config', 'remote.origin.url'], error_code_ok=True) if (result.returncode == 0 and result.output.rstrip() == manifest_repo): logging.info('Updating manifest-versions checkout.') try: git.RunGit(manifest_dir, ['gc', '--auto']) git.CleanAndCheckoutUpstream(manifest_dir) except cros_build_lib.RunCommandError: logging.warning('Could not update manifest-versions checkout.') else: reinitialize = False else: logging.info('No manifest-versions checkout exists at %s', manifest_dir) if reinitialize: logging.info('Cloning fresh manifest-versions checkout.') osutils.RmDir(manifest_dir, ignore_missing=True) repository.CloneGitRepo(manifest_dir, manifest_repo) def _PushGitChanges(git_repo, message, dry_run=True, push_to=None): """Push the final commit into the git repo. Args: git_repo: git repo to push message: Commit message dry_run: If true, don't actually push changes to the server push_to: A git.RemoteRef object specifying the remote branch to push to. Defaults to the tracking branch of the current branch. """ push_branch = None if push_to is None: remote, push_branch = git.GetTrackingBranch( git_repo, for_checkout=False, for_push=True) push_to = git.RemoteRef(remote, push_branch) git.RunGit(git_repo, ['add', '-A']) # It's possible that while we are running on dry_run, someone has already # committed our change. try: git.RunGit(git_repo, ['commit', '-m', message]) except cros_build_lib.RunCommandError: if dry_run: return raise git.GitPush(git_repo, PUSH_BRANCH, push_to, dryrun=dry_run, force=dry_run) def CreateSymlink(src_file, dest_file): """Creates a relative symlink from src to dest with optional removal of file. More robust symlink creation that creates a relative symlink from src_file to dest_file. This is useful for multiple calls of CreateSymlink where you are using the dest_file location to store information about the status of the src_file. Args: src_file: source for the symlink dest_file: destination for the symlink """ dest_dir = os.path.dirname(dest_file) osutils.SafeUnlink(dest_file) osutils.SafeMakedirs(dest_dir) rel_src_file = os.path.relpath(src_file, dest_dir) logging.debug('Linking %s to %s', rel_src_file, dest_file) os.symlink(rel_src_file, dest_file) class VersionInfo(object): """Class to encapsulate the Chrome OS version info scheme. You can instantiate this class in three ways. 1) using a version file, specifically chromeos_version.sh, which contains the version information. 2) passing in a string with the 3 version components. 3) using a source repo and calling from_repo(). Args: version_string: Optional 3 component version string to parse. Contains: build_number: release build number. branch_build_number: current build number on a branch. patch_number: patch number. chrome_branch: If version_string specified, specify chrome_branch i.e. 13. incr_type: How we should increment this version - chrome_branch|build|branch|patch version_file: version file location. """ # Pattern for matching build name format. Includes chrome branch hack. VER_PATTERN = r'(\d+).(\d+).(\d+)(?:-R(\d+))*' KEY_VALUE_PATTERN = r'%s=(\d+)\s*$' VALID_INCR_TYPES = ('chrome_branch', 'build', 'branch', 'patch') def __init__(self, version_string=None, chrome_branch=None, incr_type='build', version_file=None): if version_file: self.version_file = version_file logging.debug('Using VERSION _FILE = %s', version_file) self._LoadFromFile() else: match = re.search(self.VER_PATTERN, version_string) self.build_number = match.group(1) self.branch_build_number = match.group(2) self.patch_number = match.group(3) self.chrome_branch = chrome_branch self.version_file = None self.incr_type = incr_type @classmethod def from_repo(cls, source_repo, **kwargs): kwargs['version_file'] = os.path.join(source_repo, constants.VERSION_FILE) return cls(**kwargs) def _LoadFromFile(self): """Read the version file and set the version components""" with open(self.version_file, 'r') as version_fh: for line in version_fh: if not line.strip(): continue match = self.FindValue('CHROME_BRANCH', line) if match: self.chrome_branch = match logging.debug('Set the Chrome branch number to:%s', self.chrome_branch) continue match = self.FindValue('CHROMEOS_BUILD', line) if match: self.build_number = match logging.debug('Set the build version to:%s', self.build_number) continue match = self.FindValue('CHROMEOS_BRANCH', line) if match: self.branch_build_number = match logging.debug('Set the branch version to:%s', self.branch_build_number) continue match = self.FindValue('CHROMEOS_PATCH', line) if match: self.patch_number = match logging.debug('Set the patch version to:%s', self.patch_number) continue logging.debug(self.VersionString()) def FindValue(self, key, line): """Given the key find the value from the line, if it finds key = value Args: key: key to look for line: string to search Returns: None: on a non match value: for a matching key """ match = re.search(self.KEY_VALUE_PATTERN % (key,), line) return match.group(1) if match else None def IncrementVersion(self): """Updates the version file by incrementing the patch component. Args: message: Commit message to use when incrementing the version. dry_run: Git dry_run. """ if not self.incr_type or self.incr_type not in self.VALID_INCR_TYPES: raise VersionUpdateException('Need to specify the part of the version to' ' increment') if self.incr_type == 'chrome_branch': self.chrome_branch = str(int(self.chrome_branch) + 1) # Increment build_number for 'chrome_branch' incr_type to avoid # crbug.com/213075. if self.incr_type in ('build', 'chrome_branch'): self.build_number = str(int(self.build_number) + 1) self.branch_build_number = '0' self.patch_number = '0' elif self.incr_type == 'branch' and self.patch_number == '0': self.branch_build_number = str(int(self.branch_build_number) + 1) else: self.patch_number = str(int(self.patch_number) + 1) return self.VersionString() def UpdateVersionFile(self, message, dry_run, push_to=None): """Update the version file with our current version.""" if not self.version_file: raise VersionUpdateException('Cannot call UpdateVersionFile without ' 'an associated version_file') components = (('CHROMEOS_BUILD', self.build_number), ('CHROMEOS_BRANCH', self.branch_build_number), ('CHROMEOS_PATCH', self.patch_number), ('CHROME_BRANCH', self.chrome_branch)) with tempfile.NamedTemporaryFile(prefix='mvp') as temp_fh: with open(self.version_file, 'r') as source_version_fh: for line in source_version_fh: for key, value in components: line = re.sub(self.KEY_VALUE_PATTERN % (key,), '%s=%s\n' % (key, value), line) temp_fh.write(line) temp_fh.flush() repo_dir = os.path.dirname(self.version_file) try: git.CreateBranch(repo_dir, PUSH_BRANCH) shutil.copyfile(temp_fh.name, self.version_file) _PushGitChanges(repo_dir, message, dry_run=dry_run, push_to=push_to) finally: # Update to the remote version that contains our changes. This is needed # to ensure that we don't build a release using a local commit. git.CleanAndCheckoutUpstream(repo_dir) def VersionString(self): """returns the version string""" return '%s.%s.%s' % (self.build_number, self.branch_build_number, self.patch_number) @classmethod def VersionCompare(cls, version_string): """Useful method to return a comparable version of a LKGM string.""" info = cls(version_string) return map(int, [info.build_number, info.branch_build_number, info.patch_number]) def BuildPrefix(self): """Returns the build prefix to match the buildspecs in manifest-versions""" if self.incr_type == 'branch': if self.patch_number == '0': return '%s.' % self.build_number else: return '%s.%s.' % (self.build_number, self.branch_build_number) # Default to build incr_type. return '' class BuilderStatus(object): """Object representing the status of a build.""" # Various statuses builds can be in. These status values are retrieved from # Google Storage, which each builder writes to. The MISSING status is used # for the status of any builder which has no value in Google Storage. STATUS_FAILED = 'fail' STATUS_PASSED = 'pass' STATUS_INFLIGHT = 'inflight' STATUS_MISSING = 'missing' # i.e. never started. STATUS_ABORTED = 'aborted' COMPLETED_STATUSES = (STATUS_PASSED, STATUS_FAILED, STATUS_ABORTED) ALL_STATUSES = (STATUS_FAILED, STATUS_PASSED, STATUS_INFLIGHT, STATUS_MISSING, STATUS_ABORTED) MISSING_MESSAGE = ('Unknown run, it probably never started:' ' %(builder)s, version %(version)s') def __init__(self, status, message, dashboard_url=None): """Constructor for BuilderStatus. Args: status: Status string (should be one of STATUS_FAILED, STATUS_PASSED, STATUS_INFLIGHT, or STATUS_MISSING). message: A failures_lib.BuildFailureMessage object with details of builder failure. Or, None. dashboard_url: Optional url linking to builder dashboard for this build. """ self.status = status self.message = message self.dashboard_url = dashboard_url # Helper methods to make checking the status object easy. def Failed(self): """Returns True if the Builder failed.""" return self.status == BuilderStatus.STATUS_FAILED def Passed(self): """Returns True if the Builder passed.""" return self.status == BuilderStatus.STATUS_PASSED def Inflight(self): """Returns True if the Builder is still inflight.""" return self.status == BuilderStatus.STATUS_INFLIGHT def Missing(self): """Returns True if the Builder is missing any status.""" return self.status == BuilderStatus.STATUS_MISSING def Completed(self): """Returns True if the Builder has completed.""" return self.status in BuilderStatus.COMPLETED_STATUSES @classmethod def GetCompletedStatus(cls, success): """Return the appropriate status constant for a completed build. Args: success: Whether the build was successful or not. """ if success: return cls.STATUS_PASSED else: return cls.STATUS_FAILED def AsFlatDict(self): """Returns a flat json-able representation of this builder status. Returns: A dictionary of the form {'status' : status, 'message' : message, 'dashboard_url' : dashboard_url} where all values are guaranteed to be strings. If dashboard_url is None, the key will be excluded. """ flat_dict = {'status' : str(self.status), 'message' : str(self.message), 'reason' : str(None if self.message is None else self.message.reason)} if self.dashboard_url is not None: flat_dict['dashboard_url'] = str(self.dashboard_url) return flat_dict def AsPickledDict(self): """Returns a pickled dictionary representation of this builder status.""" return cPickle.dumps(dict(status=self.status, message=self.message, dashboard_url=self.dashboard_url)) class BuildSpecsManager(object): """A Class to manage buildspecs and their states.""" SLEEP_TIMEOUT = 2 * 60 def __init__(self, source_repo, manifest_repo, build_names, incr_type, force, branch, manifest=constants.DEFAULT_MANIFEST, dry_run=True, master=False): """Initializes a build specs manager. Args: source_repo: Repository object for the source code. manifest_repo: Manifest repository for manifest versions / buildspecs. build_names: Identifiers for the build. Must match cbuildbot_config entries. If multiple identifiers are provided, the first item in the list must be an identifier for the group. incr_type: How we should increment this version - build|branch|patch force: Create a new manifest even if there are no changes. branch: Branch this builder is running on. manifest: Manifest to use for checkout. E.g. 'full' or 'buildtools'. dry_run: Whether we actually commit changes we make or not. master: Whether we are the master builder. """ self.cros_source = source_repo buildroot = source_repo.directory if manifest_repo.startswith(constants.INTERNAL_GOB_URL): self.manifest_dir = os.path.join(buildroot, 'manifest-versions-internal') else: self.manifest_dir = os.path.join(buildroot, 'manifest-versions') self.manifest_repo = manifest_repo self.build_names = build_names self.incr_type = incr_type self.force = force self.branch = branch self.manifest = manifest self.dry_run = dry_run self.master = master # Directories and specifications are set once we load the specs. self.all_specs_dir = None self.pass_dirs = None self.fail_dirs = None # Specs. self.latest = None self._latest_status = None self.latest_unprocessed = None self.compare_versions_fn = VersionInfo.VersionCompare self.current_version = None self.rel_working_dir = '' def _LatestSpecFromList(self, specs): """Find the latest spec in a list of specs. Args: specs: List of specs. Returns: The latest spec if specs is non-empty. None otherwise. """ if specs: return max(specs, key=self.compare_versions_fn) def _LatestSpecFromDir(self, version_info, directory): """Returns the latest buildspec that match '*.xml' in a directory. Args: version_info: A VersionInfo object which will provide a build prefix to match for. directory: Directory of the buildspecs. """ if os.path.exists(directory): match_string = version_info.BuildPrefix() + '*.xml' specs = fnmatch.filter(os.listdir(directory), match_string) return self._LatestSpecFromList([os.path.splitext(m)[0] for m in specs]) def RefreshManifestCheckout(self): """Checks out manifest versions into the manifest directory.""" RefreshManifestCheckout(self.manifest_dir, self.manifest_repo) def InitializeManifestVariables(self, version_info=None, version=None): """Initializes manifest-related instance variables. Args: version_info: Info class for version information of cros. If None, version must be specified instead. version: Requested version. If None, build the latest version. Returns: Whether the requested version was found. """ assert version_info or version, 'version or version_info must be specified' working_dir = os.path.join(self.manifest_dir, self.rel_working_dir) specs_for_builder = os.path.join(working_dir, 'build-name', '%(builder)s') buildspecs = os.path.join(working_dir, 'buildspecs') # If version is specified, find out what Chrome branch it is on. if version is not None: dirs = glob.glob(os.path.join(buildspecs, '*', version + '.xml')) if len(dirs) == 0: return False assert len(dirs) <= 1, 'More than one spec found for %s' % version dir_pfx = os.path.basename(os.path.dirname(dirs[0])) version_info = VersionInfo(chrome_branch=dir_pfx, version_string=version) else: dir_pfx = version_info.chrome_branch self.all_specs_dir = os.path.join(buildspecs, dir_pfx) self.pass_dirs, self.fail_dirs = [], [] for build_name in self.build_names: specs_for_build = specs_for_builder % {'builder': build_name} self.pass_dirs.append(os.path.join(specs_for_build, BuilderStatus.STATUS_PASSED, dir_pfx)) self.fail_dirs.append(os.path.join(specs_for_build, BuilderStatus.STATUS_FAILED, dir_pfx)) # Calculate the status of the latest build, and whether the build was # processed. if version is None: self.latest = self._LatestSpecFromDir(version_info, self.all_specs_dir) if self.latest is not None: self._latest_status = self.GetBuildStatus(self.build_names[0], self.latest) if self._latest_status.Missing(): self.latest_unprocessed = self.latest return True def GetCurrentVersionInfo(self): """Returns the current version info from the version file.""" version_file_path = self.cros_source.GetRelativePath(constants.VERSION_FILE) return VersionInfo(version_file=version_file_path, incr_type=self.incr_type) def HasCheckoutBeenBuilt(self): """Checks to see if we've previously built this checkout. """ if self._latest_status and self._latest_status.Passed(): latest_spec_file = '%s.xml' % os.path.join( self.all_specs_dir, self.latest) # We've built this checkout before if the manifest isn't different than # the last one we've built. return not self.cros_source.IsManifestDifferent(latest_spec_file) else: # We've never built this manifest before so this checkout is always new. return False def CreateManifest(self): """Returns the path to a new manifest based on the current source checkout. """ new_manifest = tempfile.mkstemp('manifest_versions.manifest')[1] osutils.WriteFile(new_manifest, self.cros_source.ExportManifest(mark_revision=True)) return new_manifest def GetNextVersion(self, version_info): """Returns the next version string that should be built.""" version = version_info.VersionString() if self.latest == version: message = ('Automatic: %s - Updating to a new version number from %s' % ( self.build_names[0], version)) version = version_info.IncrementVersion() version_info.UpdateVersionFile(message, dry_run=self.dry_run) assert version != self.latest cros_build_lib.Info('Incremented version number to %s', version) return version def PublishManifest(self, manifest, version, build_id=None): """Publishes the manifest as the manifest for the version to others. Args: manifest: Path to manifest file to publish. version: Manifest version string, e.g. 6102.0.0-rc4 build_id: Optional integer giving build_id of the build that is publishing this manifest. If specified and non-negative, build_id will be included in the commit message. """ # Note: This commit message is used by master.cfg for figuring out when to # trigger slave builders. commit_message = 'Automatic: Start %s %s %s' % (self.build_names[0], self.branch, version) if build_id is not None and build_id >= 0: commit_message += '\nCrOS-Build-Id: %s' % build_id logging.info('Publishing build spec for: %s', version) logging.info('Publishing with commit message: %s', commit_message) logging.debug('Manifest contents below.\n%s', osutils.ReadFile(manifest)) # Copy the manifest into the manifest repository. spec_file = '%s.xml' % os.path.join(self.all_specs_dir, version) osutils.SafeMakedirs(os.path.dirname(spec_file)) shutil.copyfile(manifest, spec_file) # Actually push the manifest. self.PushSpecChanges(commit_message) def DidLastBuildFail(self): """Returns True if the last build failed.""" return self._latest_status and self._latest_status.Failed() @staticmethod def GetBuildStatus(builder, version, retries=NUM_RETRIES): """Returns a BuilderStatus instance for the given the builder. Args: builder: Builder to look at. version: Version string. retries: Number of retries for getting the status. Returns: A BuilderStatus instance containing the builder status and any optional message associated with the status passed by the builder. If no status is found for this builder then the returned BuilderStatus object will have status STATUS_MISSING. """ url = BuildSpecsManager._GetStatusUrl(builder, version) ctx = gs.GSContext(retries=retries) try: output = ctx.Cat(url).output except gs.GSNoSuchKey: return BuilderStatus(BuilderStatus.STATUS_MISSING, None) return BuildSpecsManager._UnpickleBuildStatus(output) @staticmethod def GetSlaveStatusesFromCIDB(master_build_id): """Get statuses of slaves associated with |master_build_id|. Args: master_build_id: Master build id to check. Returns: A dictionary mapping the slave name to a status in BuildStatus.ALL_STATUSES. """ status_dict = dict() db = cidb.CIDBConnectionFactory.GetCIDBConnectionForBuilder() assert db, 'No database connection to use.' status_list = db.GetSlaveStatuses(master_build_id) for d in status_list: status_dict[d['build_config']] = d['status'] return status_dict def GetBuildersStatus(self, master_build_id, builders_array, timeout=3 * 60): """Get the statuses of the slave builders of the master. This function checks the status of slaves in |builders_array|. It queries CIDB for all builds associated with the |master_build_id|, then filters out builds that are not in |builders_array| (e.g., slaves that are not important). Args: master_build_id: Master build id to check. builders_array: A list of the names of the builders to check. timeout: Number of seconds to wait for the results. Returns: A build-names->status dictionary of build statuses. """ builders_completed = set() def _GetStatusesFromDB(): """Helper function that iterates through current statuses.""" status_dict = self.GetSlaveStatusesFromCIDB(master_build_id) for builder in set(builders_array) - set(status_dict.keys()): logging.warn('No status found for builder %s.', builder) latest_completed = set( [b for b, s in status_dict.iteritems() if s in BuilderStatus.COMPLETED_STATUSES and b in builders_array]) for builder in sorted(latest_completed - builders_completed): logging.info('Builder %s completed with status "%s".', builder, status_dict[builder]) builders_completed.update(latest_completed) if len(builders_completed) < len(builders_array): logging.info('Still waiting for the following builds to complete: %r', sorted(set(builders_array).difference(builders_completed))) return None else: return 'Builds completed.' def _PrintRemainingTime(minutes_left): logging.info('%d more minutes until timeout...', minutes_left) # Check for build completion until all builders report in. try: builds_succeeded = timeout_util.WaitForSuccess( lambda x: x is None, _GetStatusesFromDB, timeout, period=self.SLEEP_TIMEOUT, side_effect_func=_PrintRemainingTime) except timeout_util.TimeoutError: builds_succeeded = None # Actually fetch the BuildStatus pickles from Google Storage. builder_statuses = {} for builder in builders_array: logging.debug("Checking for builder %s's status", builder) builder_status = self.GetBuildStatus(builder, self.current_version) builder_statuses[builder] = builder_status if not builds_succeeded: logging.error('Not all builds finished before timeout (%d minutes)' ' reached.', int((timeout / 60) + 0.5)) return builder_statuses @staticmethod def _UnpickleBuildStatus(pickle_string): """Returns a BuilderStatus instance from a pickled string.""" try: status_dict = cPickle.loads(pickle_string) except (cPickle.UnpicklingError, AttributeError, EOFError, ImportError, IndexError, TypeError) as e: # The above exceptions are listed as possible unpickling exceptions # by http://docs.python.org/2/library/pickle # In addition to the exceptions listed in the doc, we've also observed # TypeError in the wild. logging.warning('Failed with %r to unpickle status file.', e) return BuilderStatus(BuilderStatus.STATUS_FAILED, message=None) return BuilderStatus(**status_dict) def GetLatestPassingSpec(self): """Get the last spec file that passed in the current branch.""" version_info = self.GetCurrentVersionInfo() return self._LatestSpecFromDir(version_info, self.pass_dirs[0]) def GetLocalManifest(self, version=None): """Return path to local copy of manifest given by version. Returns: Path of |version|. By default if version is not set, returns the path of the current version. """ if not self.all_specs_dir: raise BuildSpecsValueError('GetLocalManifest failed, BuildSpecsManager ' 'instance not yet initialized by call to ' 'InitializeManifestVariables.') if version: return os.path.join(self.all_specs_dir, version + '.xml') elif self.current_version: return os.path.join(self.all_specs_dir, self.current_version + '.xml') return None def BootstrapFromVersion(self, version): """Initializes spec data from release version and returns path to manifest. """ # Only refresh the manifest checkout if needed. if not self.InitializeManifestVariables(version=version): self.RefreshManifestCheckout() if not self.InitializeManifestVariables(version=version): raise BuildSpecsValueError('Failure in BootstrapFromVersion. ' 'InitializeManifestVariables failed after ' 'RefreshManifestCheckout for version ' '%s.' % version) # Return the current manifest. self.current_version = version return self.GetLocalManifest(self.current_version) def CheckoutSourceCode(self): """Syncs the cros source to the latest git hashes for the branch.""" self.cros_source.Sync(self.manifest) def GetNextBuildSpec(self, retries=NUM_RETRIES, dashboard_url=None, build_id=None): """Returns a path to the next manifest to build. Args: retries: Number of retries for updating the status. dashboard_url: Optional url linking to builder dashboard for this build. build_id: Optional integer cidb id of this build, which will be used to annotate the manifest-version commit if one is created. Raises: GenerateBuildSpecException in case of failure to generate a buildspec """ last_error = None for index in range(0, retries + 1): try: self.CheckoutSourceCode() version_info = self.GetCurrentVersionInfo() self.RefreshManifestCheckout() self.InitializeManifestVariables(version_info) if not self.force and self.HasCheckoutBeenBuilt(): return None # If we're the master, always create a new build spec. Otherwise, # only create a new build spec if we've already built the existing # spec. if self.master or not self.latest_unprocessed: git.CreatePushBranch(PUSH_BRANCH, self.manifest_dir, sync=False) version = self.GetNextVersion(version_info) new_manifest = self.CreateManifest() self.PublishManifest(new_manifest, version, build_id=build_id) else: version = self.latest_unprocessed self.SetInFlight(version, dashboard_url=dashboard_url) self.current_version = version return self.GetLocalManifest(version) except cros_build_lib.RunCommandError as e: last_error = 'Failed to generate buildspec. error: %s' % e logging.error(last_error) logging.error('Retrying to generate buildspec: Retry %d/%d', index + 1, retries) else: # Cleanse any failed local changes and throw an exception. self.RefreshManifestCheckout() raise GenerateBuildSpecException(last_error) @staticmethod def _GetStatusUrl(builder, version): """Get the status URL in Google Storage for a given builder / version.""" return os.path.join(BUILD_STATUS_URL, version, builder) def _UploadStatus(self, version, status, message=None, fail_if_exists=False, dashboard_url=None): """Upload build status to Google Storage. Args: version: Version number to use. Must be a string. status: Status string. message: A failures_lib.BuildFailureMessage object with details of builder failure, or None (default). fail_if_exists: If set, fail if the status already exists. dashboard_url: Optional url linking to builder dashboard for this build. """ data = BuilderStatus(status, message, dashboard_url).AsPickledDict() # This HTTP header tells Google Storage to return the PreconditionFailed # error message if the file already exists. gs_version = 0 if fail_if_exists else None logging.info('Recording status %s for %s', status, self.build_names) for build_name in self.build_names: url = BuildSpecsManager._GetStatusUrl(build_name, version) # Do the actual upload. ctx = gs.GSContext(dry_run=self.dry_run) ctx.Copy('-', url, input=data, version=gs_version) def UploadStatus(self, success, message=None, dashboard_url=None): """Uploads the status of the build for the current build spec. Args: success: True for success, False for failure message: A failures_lib.BuildFailureMessage object with details of builder failure, or None (default). dashboard_url: Optional url linking to builder dashboard for this build. """ status = BuilderStatus.GetCompletedStatus(success) self._UploadStatus(self.current_version, status, message=message, dashboard_url=dashboard_url) def SetInFlight(self, version, dashboard_url=None): """Marks the buildspec as inflight in Google Storage.""" try: self._UploadStatus(version, BuilderStatus.STATUS_INFLIGHT, fail_if_exists=True, dashboard_url=dashboard_url) except gs.GSContextPreconditionFailed: raise GenerateBuildSpecException('Builder already inflight') except gs.GSContextException as e: raise GenerateBuildSpecException(e) def _SetPassSymlinks(self, success_map): """Marks the buildspec as passed by creating a symlink in passed dir. Args: success_map: Map of config names to whether they succeeded. """ src_file = '%s.xml' % os.path.join(self.all_specs_dir, self.current_version) for i, build_name in enumerate(self.build_names): if success_map[build_name]: sym_dir = self.pass_dirs[i] else: sym_dir = self.fail_dirs[i] dest_file = '%s.xml' % os.path.join(sym_dir, self.current_version) status = BuilderStatus.GetCompletedStatus(success_map[build_name]) logging.debug('Build %s: %s -> %s', status, src_file, dest_file) CreateSymlink(src_file, dest_file) def PushSpecChanges(self, commit_message): """Pushes any changes you have in the manifest directory.""" _PushGitChanges(self.manifest_dir, commit_message, dry_run=self.dry_run) def UpdateStatus(self, success_map, message=None, retries=NUM_RETRIES, dashboard_url=None): """Updates the status of the build for the current build spec. Args: success_map: Map of config names to whether they succeeded. message: Message accompanied with change in status. retries: Number of retries for updating the status dashboard_url: Optional url linking to builder dashboard for this build. """ last_error = None if message: logging.info('Updating status with message %s', message) for index in range(0, retries + 1): try: self.RefreshManifestCheckout() git.CreatePushBranch(PUSH_BRANCH, self.manifest_dir, sync=False) success = all(success_map.values()) commit_message = ('Automatic checkin: status=%s build_version %s for ' '%s' % (BuilderStatus.GetCompletedStatus(success), self.current_version, self.build_names[0])) self._SetPassSymlinks(success_map) self.PushSpecChanges(commit_message) except cros_build_lib.RunCommandError as e: last_error = ('Failed to update the status for %s with the ' 'following error %s' % (self.build_names[0], e.message)) logging.error(last_error) logging.error('Retrying to generate buildspec: Retry %d/%d', index + 1, retries) else: # Upload status to Google Storage as well. self.UploadStatus(success, message=message, dashboard_url=dashboard_url) return else: # Cleanse any failed local changes and throw an exception. self.RefreshManifestCheckout() raise StatusUpdateException(last_error)