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# Copyright 2020 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
################################################################################
"""Cloud function to request builds."""
import json
import google.auth
from googleapiclient.discovery import build
from google.cloud import ndb
import build_and_run_coverage
import build_project
import builds_status
from datastore_entities import BuildsHistory
from datastore_entities import LastSuccessfulBuild
from datastore_entities import Project
BADGE_DIR = 'badge_images'
DESTINATION_BADGE_DIR = 'badges'
MAX_BUILD_LOGS = 7
class MissingBuildLogError(Exception):
"""Missing build log file in cloud storage."""
def upload_status(data, status_filename):
"""Upload json file to cloud storage."""
bucket = builds_status.get_storage_client().get_bucket(
builds_status.STATUS_BUCKET)
blob = bucket.blob(status_filename)
blob.cache_control = 'no-cache'
blob.upload_from_string(json.dumps(data), content_type='application/json')
def sort_projects(projects):
"""Sort projects in order Failures, Successes, Not yet built."""
def key_func(project):
if not project['history']:
return 2 # Order projects without history last.
if project['history'][0]['success']:
# Successful builds come second.
return 1
# Build failures come first.
return 0
projects.sort(key=key_func)
def get_build(cloudbuild, image_project, build_id):
"""Get build object from cloudbuild."""
return cloudbuild.projects().builds().get(projectId=image_project,
id=build_id).execute()
def update_last_successful_build(project, build_tag):
"""Update last successful build."""
last_successful_build = ndb.Key(LastSuccessfulBuild,
project['name'] + '-' + build_tag).get()
if not last_successful_build and 'last_successful_build' not in project:
return
if 'last_successful_build' not in project:
project['last_successful_build'] = {
'build_id': last_successful_build.build_id,
'finish_time': last_successful_build.finish_time
}
else:
if last_successful_build:
last_successful_build.build_id = project['last_successful_build'][
'build_id']
last_successful_build.finish_time = project['last_successful_build'][
'finish_time']
else:
last_successful_build = LastSuccessfulBuild(
id=project['name'] + '-' + build_tag,
project=project['name'],
build_id=project['last_successful_build']['build_id'],
finish_time=project['last_successful_build']['finish_time'])
last_successful_build.put()
# pylint: disable=no-member
def get_build_history(build_ids):
"""Returns build object for the last finished build of project."""
credentials, image_project = google.auth.default()
cloudbuild = build('cloudbuild',
'v1',
credentials=credentials,
cache_discovery=False)
history = []
last_successful_build = None
for build_id in reversed(build_ids):
project_build = get_build(cloudbuild, image_project, build_id)
if project_build['status'] not in ('SUCCESS', 'FAILURE', 'TIMEOUT'):
continue
if (not last_successful_build and
builds_status.is_build_successful(project_build)):
last_successful_build = {
'build_id': build_id,
'finish_time': project_build['finishTime'],
}
if not builds_status.upload_log(build_id):
log_name = 'log-{0}'.format(build_id)
raise MissingBuildLogError('Missing build log file {0}'.format(log_name))
history.append({
'build_id': build_id,
'finish_time': project_build['finishTime'],
'success': builds_status.is_build_successful(project_build)
})
if len(history) == MAX_BUILD_LOGS:
break
project = {'history': history}
if last_successful_build:
project['last_successful_build'] = last_successful_build
return project
# pylint: disable=too-many-locals
def update_build_status(build_tag, status_filename):
"""Update build statuses."""
projects = []
statuses = {}
for project_build in BuildsHistory.query(
BuildsHistory.build_tag == build_tag).order('project'):
project = get_build_history(project_build.build_ids)
project['name'] = project_build.project
projects.append(project)
if project['history']:
statuses[project_build.project] = project['history'][0]['success']
update_last_successful_build(project, build_tag)
sort_projects(projects)
data = {'projects': projects}
upload_status(data, status_filename)
return statuses
def update_build_badges(project, last_build_successful,
last_coverage_build_successful):
"""Upload badges of given project."""
badge = 'building'
if not last_coverage_build_successful:
badge = 'coverage_failing'
if not last_build_successful:
badge = 'failing'
print("[badge] {}: {}".format(project, badge))
for extension in builds_status.BADGE_IMAGE_TYPES:
badge_name = '{badge}.{extension}'.format(badge=badge, extension=extension)
# Copy blob from badge_images/badge_name to badges/project/
blob_name = '{badge_dir}/{badge_name}'.format(badge_dir=BADGE_DIR,
badge_name=badge_name)
destination_blob_name = '{badge_dir}/{project_name}.{extension}'.format(
badge_dir=DESTINATION_BADGE_DIR,
project_name=project,
extension=extension)
status_bucket = builds_status.get_storage_client().get_bucket(
builds_status.STATUS_BUCKET)
badge_blob = status_bucket.blob(blob_name)
status_bucket.copy_blob(badge_blob,
status_bucket,
new_name=destination_blob_name)
# pylint: disable=no-member
def update_status(event, context):
"""Entry point for cloud function to update build statuses and badges."""
del event, context #unused
with ndb.Client().context():
project_build_statuses = update_build_status(
build_project.FUZZING_BUILD_TAG, status_filename='status.json')
coverage_build_statuses = update_build_status(
build_and_run_coverage.COVERAGE_BUILD_TAG,
status_filename='status-coverage.json')
for project in Project.query():
if (project.name not in project_build_statuses or
project.name not in coverage_build_statuses):
continue
update_build_badges(project.name, project_build_statuses[project.name],
coverage_build_statuses[project.name])
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