| # 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 codecs |
| import logging |
| import os |
| import re |
| from xml.dom import minidom |
| |
| from chromite.cbuildbot import manifest_version |
| from chromite.lib import chromeos_version |
| from chromite.lib import config_lib |
| from chromite.lib import constants |
| from chromite.lib import cros_build_lib |
| from chromite.lib import git |
| |
| |
| # Paladin constants for manifest names. |
| PALADIN_COMMIT_ELEMENT = 'pending_commit' |
| |
| ANDROID_ELEMENT = 'android' |
| ANDROID_VERSION_ATTR = 'version' |
| CHROME_ELEMENT = 'chrome' |
| CHROME_VERSION_ATTR = 'version' |
| |
| |
| class PromoteCandidateException(Exception): |
| """Exception thrown for failure to promote manifest candidate.""" |
| |
| |
| class _LKGMCandidateInfo(chromeos_version.VersionInfo): |
| """Class to encapsualte the Chrome OS LKGM candidate info.""" |
| LKGM_RE = r'(\d+\.\d+\.\d+)(?:-rc(\d+))?' |
| |
| def __init__(self, version_string=None, chrome_branch=None, incr_type=None, |
| version_file=None): |
| """Initialize. |
| |
| You can instantiate this in a few ways: |
| 1) Using |version_file|, specifically chromeos_version.sh, |
| which contains the version information. |
| 2) Just passing in |version_string| with 3 or 4 version components |
| e.g. 41.0.0-r1. |
| |
| 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. |
| revision_number: version revision |
| chrome_branch: If version_string specified, specify chrome_branch i.e. 13. |
| incr_type: How we should increment this version - build|branch|patch. |
| version_file: version file location. |
| """ |
| self.revision_number = 1 |
| if version_string: |
| match = re.search(self.LKGM_RE, version_string) |
| assert match, 'LKGM did not re %s' % self.LKGM_RE |
| super().__init__(match.group(1), chrome_branch, incr_type=incr_type) |
| if match.group(2): |
| self.revision_number = int(match.group(2)) |
| |
| else: |
| super().__init__(version_file=version_file, incr_type=incr_type) |
| |
| def VersionString(self): |
| """returns the full version string of the lkgm candidate""" |
| return '%s.%s.%s-rc%s' % (self.build_number, self.branch_build_number, |
| self.patch_number, self.revision_number) |
| |
| def VersionComponents(self): |
| """Return an array of ints of the version fields for comparing.""" |
| return [int(x) for x in [self.build_number, self.branch_build_number, |
| self.patch_number, self.revision_number]] |
| |
| def IncrementVersion(self): |
| """Increments the version by incrementing the revision #.""" |
| self.revision_number += 1 |
| return self.VersionString() |
| |
| # pylint: disable=arguments-differ, signature-differs |
| def UpdateVersionFile(self, *args, **kwargs): |
| """Update the version file on disk. |
| |
| For LKGMCandidateInfo there is no version file so this function is a no-op. |
| """ |
| |
| |
| class LKGMManager(manifest_version.BuildSpecsManager): |
| """A Class to manage lkgm candidates and their states. |
| |
| Vars: |
| lkgm_subdir: Subdirectory within manifest repo to store candidates. |
| """ |
| # Sub-directories for LKGM and Chrome LKGM's. |
| LKGM_SUBDIR = 'LKGM-candidates' |
| ANDROID_PFQ_SUBDIR = 'android-LKGM-candidates' |
| TOOLCHAIN_SUBDIR = 'toolchain' |
| FULL_SUBDIR = 'full' |
| INCREMENTAL_SUBDIR = 'incremental' |
| |
| def __init__(self, source_repo, manifest_repo, build_names, build_type, |
| incr_type, force, branch, manifest=constants.DEFAULT_MANIFEST, |
| dry_run=True, lkgm_path_rel=constants.LKGM_MANIFEST, |
| config=None, metadata=None, buildstore=None, |
| buildbucket_client=None): |
| """Initialize an LKGM 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 config_lib |
| entries. If multiple identifiers are provided, the first item in the |
| list must be an identifier for the group. |
| build_type: Type of build. Must be a pfq type. |
| 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. |
| lkgm_path_rel: Path to the LKGM symlink, relative to manifest dir. |
| config: Instance of config_lib.BuildConfig. Config dict of this builder. |
| metadata: Instance of metadata_lib.CBuildbotMetadata. Metadata of this |
| builder. |
| buildstore: BuildStore instance to make DB calls. |
| buildbucket_client: Instance of buildbucket_v2.BuildbucketV2 client. |
| """ |
| super().__init__( |
| source_repo=source_repo, manifest_repo=manifest_repo, |
| manifest=manifest, build_names=build_names, incr_type=incr_type, |
| force=force, branch=branch, dry_run=dry_run, |
| config=config, metadata=metadata, buildstore=buildstore, |
| buildbucket_client=buildbucket_client) |
| |
| self.lkgm_path = os.path.join(self.manifest_dir, lkgm_path_rel) |
| self.compare_versions_fn = _LKGMCandidateInfo.VersionCompare |
| self.build_type = build_type |
| # Chrome PFQ and PFQ's exist at the same time and version separately so they |
| # must have separate subdirs in the manifest-versions repository. |
| if self.build_type == constants.TOOLCHAIN_TYPE: |
| self.rel_working_dir = self.TOOLCHAIN_SUBDIR |
| elif self.build_type == constants.FULL_TYPE: |
| self.rel_working_dir = self.FULL_SUBDIR |
| elif self.build_type == constants.INCREMENTAL_TYPE: |
| self.rel_working_dir = self.INCREMENTAL_SUBDIR |
| else: |
| assert config_lib.IsPFQType(self.build_type) |
| self.rel_working_dir = self.LKGM_SUBDIR |
| |
| def GetCurrentVersionInfo(self): |
| """Returns the lkgm version info from the version file.""" |
| version_info = super().GetCurrentVersionInfo() |
| return _LKGMCandidateInfo(version_info.VersionString(), |
| chrome_branch=version_info.chrome_branch, |
| incr_type=self.incr_type) |
| |
| def _WriteXml(self, dom_instance, file_path): |
| """Wrapper function to write xml encoded in a proper way. |
| |
| Args: |
| dom_instance: A DOM document instance contains contents to be written. |
| file_path: Path to the file to write into. |
| """ |
| with codecs.open(file_path, 'w+', 'utf-8') as f: |
| dom_instance.writexml(f) |
| |
| def _AddAndroidVersionToManifest(self, manifest, android_version): |
| """Adds the Android element with version |android_version| to |manifest|. |
| |
| The manifest file should contain the Android version to build for |
| PFQ slaves. |
| |
| Args: |
| manifest: Path to the manifest |
| android_version: A string representing the version of Android |
| """ |
| manifest_dom = minidom.parse(manifest) |
| android = manifest_dom.createElement(ANDROID_ELEMENT) |
| android.setAttribute(ANDROID_VERSION_ATTR, android_version) |
| manifest_dom.documentElement.appendChild(android) |
| self._WriteXml(manifest_dom, manifest) |
| |
| def _AddChromeVersionToManifest(self, manifest, chrome_version): |
| """Adds the chrome element with version |chrome_version| to |manifest|. |
| |
| The manifest file should contain the Chrome version to build for |
| PFQ slaves. |
| |
| Args: |
| manifest: Path to the manifest |
| chrome_version: A string representing the version of Chrome |
| (e.g. 35.0.1863.0). |
| """ |
| manifest_dom = minidom.parse(manifest) |
| chrome = manifest_dom.createElement(CHROME_ELEMENT) |
| chrome.setAttribute(CHROME_VERSION_ATTR, chrome_version) |
| manifest_dom.documentElement.appendChild(chrome) |
| self._WriteXml(manifest_dom, manifest) |
| |
| def CreateNewCandidate(self, |
| android_version=None, |
| chrome_version=None, |
| retries=manifest_version.NUM_RETRIES, |
| build_id=None): |
| """Creates, syncs to, and returns the next candidate manifest. |
| |
| Args: |
| android_version: The Android version to write in the manifest. Defaults |
| to None, in which case no version is written. |
| chrome_version: The Chrome version to write in the manifest. Defaults |
| to None, in which case no version is written. |
| retries: Number of retries for updating the status. Defaults to |
| manifest_version.NUM_RETRIES. |
| build_id: Optional integer cidb id of the build that is creating |
| this candidate. |
| |
| Raises: |
| GenerateBuildSpecException in case of failure to generate a buildspec |
| """ |
| self.CheckoutSourceCode() |
| |
| # Refresh manifest logic from manifest_versions repository to grab the |
| # LKGM to generate the blamelist. |
| version_info = self.GetCurrentVersionInfo() |
| self.RefreshManifestCheckout() |
| self.InitializeManifestVariables(version_info) |
| |
| new_manifest = self.CreateManifest() |
| |
| # For Android PFQ, add the version of Android to use. |
| if android_version: |
| self._AddAndroidVersionToManifest(new_manifest, android_version) |
| |
| # For Chrome PFQ, add the version of Chrome to use. |
| if chrome_version: |
| self._AddChromeVersionToManifest(new_manifest, chrome_version) |
| |
| last_error = None |
| for attempt in range(0, retries + 1): |
| try: |
| # Refresh manifest logic from manifest_versions repository. |
| # Note we don't need to do this on our first attempt as we needed to |
| # have done it to get the LKGM. |
| if attempt != 0: |
| self.RefreshManifestCheckout() |
| self.InitializeManifestVariables(version_info) |
| |
| # If we don't have any valid changes to test, make sure the checkout |
| # is at least different. |
| if not self.force and self.HasCheckoutBeenBuilt(): |
| return None |
| |
| # Check whether the latest spec available in manifest-versions is |
| # newer than our current version number. If so, use it as the base |
| # version number. Otherwise, we default to 'rc1'. |
| if self.latest: |
| latest = max(self.latest, version_info.VersionString(), |
| key=self.compare_versions_fn) |
| version_info = _LKGMCandidateInfo( |
| latest, chrome_branch=version_info.chrome_branch, |
| incr_type=self.incr_type) |
| |
| git.CreatePushBranch(manifest_version.PUSH_BRANCH, self.manifest_dir, |
| sync=False) |
| version = self.GetNextVersion(version_info) |
| self.PublishManifest(new_manifest, version, build_id=build_id) |
| self.current_version = version |
| return self.GetLocalManifest(version) |
| except cros_build_lib.RunCommandError as e: |
| err_msg = 'Failed to generate LKGM Candidate. error: %s' % e |
| logging.error(err_msg) |
| last_error = err_msg |
| |
| raise manifest_version.GenerateBuildSpecException(last_error) |
| |
| def CreateFromManifest(self, manifest, retries=manifest_version.NUM_RETRIES, |
| build_id=None): |
| """Sets up an lkgm_manager from the given manifest. |
| |
| This method sets up an LKGM manager and publishes a new manifest to the |
| manifest versions repo based on the passed in manifest but filtering |
| internal repositories and changes out of it. |
| |
| Args: |
| manifest: A manifest that possibly contains private changes/projects. It |
| is named with the given version we want to create a new manifest from |
| i.e R20-1920.0.1-rc7.xml where R20-1920.0.1-rc7 is the version. |
| retries: Number of retries for updating the status. |
| build_id: Optional integer cidb build id of the build publishing the |
| manifest. |
| |
| Returns: |
| Path to the manifest version file to use. |
| |
| Raises: |
| GenerateBuildSpecException in case of failure to check-in the new |
| manifest because of a git error or the manifest is already checked-in. |
| """ |
| last_error = None |
| new_manifest = manifest_version.FilterManifest( |
| manifest, |
| whitelisted_remotes=config_lib.GetSiteParams().EXTERNAL_REMOTES) |
| version_info = self.GetCurrentVersionInfo() |
| for _attempt in range(0, retries + 1): |
| try: |
| self.RefreshManifestCheckout() |
| self.InitializeManifestVariables(version_info) |
| |
| git.CreatePushBranch(manifest_version.PUSH_BRANCH, self.manifest_dir, |
| sync=False) |
| version = os.path.splitext(os.path.basename(manifest))[0] |
| logging.info('Publishing filtered build spec') |
| self.PublishManifest(new_manifest, version, build_id=build_id) |
| self.current_version = version |
| return self.GetLocalManifest(version) |
| except cros_build_lib.RunCommandError as e: |
| err_msg = 'Failed to generate LKGM Candidate. error: %s' % e |
| logging.error(err_msg) |
| last_error = err_msg |
| |
| raise manifest_version.GenerateBuildSpecException(last_error) |
| |
| def PromoteCandidate(self, retries=manifest_version.NUM_RETRIES): |
| """Promotes the current LKGM candidate to be a real versioned LKGM.""" |
| assert self.current_version, 'No current manifest exists.' |
| |
| last_error = None |
| path_to_candidate = self.GetLocalManifest(self.current_version) |
| assert os.path.exists(path_to_candidate), 'Candidate not found locally.' |
| |
| # This may potentially fail for not being at TOT while pushing. |
| for attempt in range(0, retries + 1): |
| try: |
| if attempt > 0: |
| self.RefreshManifestCheckout() |
| git.CreatePushBranch(manifest_version.PUSH_BRANCH, |
| self.manifest_dir, sync=False) |
| manifest_version.CreateSymlink(path_to_candidate, self.lkgm_path) |
| git.RunGit(self.manifest_dir, ['add', self.lkgm_path]) |
| self.PushSpecChanges( |
| 'Automatic: %s promoting %s to LKGM' % (self.build_names[0], |
| self.current_version)) |
| return |
| except cros_build_lib.RunCommandError as e: |
| last_error = 'Failed to promote manifest. error: %s' % e |
| logging.info(last_error) |
| logging.info('Retrying to promote manifest: Retry %d/%d', attempt + 1, |
| retries) |
| |
| raise PromoteCandidateException(last_error) |
| |
| def GetLatestPassingSpec(self): |
| """Get the last spec file that passed in the current branch.""" |
| raise NotImplementedError() |
