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llvm-premerge-checks/scripts/pipeline_create_branch.py
Mikhail Goncharov 1c04f70eb9 cancel previous builds for the same revisions
using metadata tags set in #298 finds and cancels existing builds before
starting a new one.

One caveat is that no result is reported back to Phabricator for the
cancelled build. That should not be an issue in the normal usecase.

For #278
2021-05-04 11:27:09 +02:00

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2.9 KiB
Python
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#!/usr/bin/env python3
# Copyright 2020 Google LLC
#
# Licensed under the the Apache License v2.0 with LLVM Exceptions (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://llvm.org/LICENSE.txt
#
# 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.
import os
import yaml
import logging
from buildkite_utils import set_metadata, BuildkiteApi
if __name__ == '__main__':
diff_id = os.getenv("ph_buildable_diff")
log_level = os.getenv('ph_log_level', 'INFO')
base_commit = os.getenv('ph_base_commit', 'auto')
run_build = os.getenv('ph_skip_build') is None
trigger = os.getenv('ph_trigger_pipeline')
logging.basicConfig(level=log_level, format='%(levelname)-7s %(message)s')
# Cancel any existing builds.
# Do this before setting own 'ph_buildable_revision'.
try:
bk = BuildkiteApi(os.getenv("BUILDKITE_API_TOKEN"), os.getenv("BUILDKITE_ORGANIZATION_SLUG"))
for b in bk.list_running_revision_builds(os.getenv("BUILDKITE_PIPELINE_SLUG"), os.getenv('ph_buildable_revision')):
logging.info(f'cancelling build {b.get("web_url")}')
bk.cancel_build(b)
except Exception as e:
logging.error(e)
set_metadata('ph_buildable_diff', os.getenv("ph_buildable_diff"))
set_metadata('ph_buildable_revision', os.getenv('ph_buildable_revision'))
set_metadata('ph_build_id', os.getenv("ph_build_id"))
if trigger is None:
trigger = 'premerge-checks'
steps = []
steps.append({
'label': 'create branch',
'key': 'create-branch',
'commands': [
'pip install -q -r scripts/requirements.txt',
'scripts/apply_patch.sh'
],
'agents': {'queue': 'service'},
'timeout_in_minutes': 20,
'env': {
'LOG_LEVEL': log_level,
'BASE_COMMIT': base_commit,
}
})
if run_build:
trigger_build_step = {
'trigger': trigger,
'label': ':rocket: build and test',
'async': False,
'depends_on': 'create-branch',
'build': {
'branch': f'phab-diff-{diff_id}',
'env': {},
},
}
for e in os.environ:
if e.startswith('ph_'):
trigger_build_step['build']['env'][e] = os.getenv(e)
# Set scripts source from the current build if it's not yet defined.
if 'ph_scripts_refspec' not in trigger_build_step['build']['env']:
trigger_build_step['build']['env']['ph_scripts_refspec'] = '${BUILDKITE_BRANCH}'
steps.append(trigger_build_step)
print(yaml.dump({'steps': steps}))