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llvm-premerge-checks/scripts/metrics/buildkite_master_stats.py

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2020-08-07 10:11:31 +02:00
#!/usr/bin/env python3
# Copyright 2019 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.
# -----------------------------------------------------------------------------
# This script will collect all breakages of the master branch builds from
# buildkite and format the results nicely.
# Arguments:
# llvm-path : folder where the LLVM checkout is kept
# token : Access token for buildkite
# -----------------------------------------------------------------------------
import requests
import git
import argparse
import json
import os
import datetime
class Build:
def __init__(self, json_dict):
self._json_dict = json_dict
@property
def number(self) -> int:
return self._json_dict['number']
@property
def web_url(self) -> str:
return self._json_dict['web_url']
@property
def state(self) -> str:
return self._json_dict['state']
@property
def has_passed(self) -> bool:
return self.state == 'passed'
@property
def commit(self) -> str:
return self._json_dict['commit']
@property
def created_at(self) -> datetime.datetime:
#example: 2019-11-07T14:13:07.942Z
return datetime.datetime.fromisoformat(self._json_dict['created_at'].rstrip('Z'))
class BuildKiteMasterStats:
def __init__(self, llvm_repo: str, token_path: str):
self._llvm_repo = llvm_repo
with open(token_path, 'r') as token_file:
self._token = token_file.read().strip()
def get_stats(self, organisation: str, pipeline: str):
url = "https://api.buildkite.com/v2/organizations/{}/pipelines/{}/builds".format(organisation, pipeline)
return self._get_url(url)
def _get_url(self, url: str):
"""Get paginated results from server."""
page = 1
results = []
while True:
page_url = url + f"?api_key={self._token}&page={page}&per_page=100"
new_results = requests.get(page_url).json()
results.extend(new_results)
print(len(new_results))
if len(new_results) < 100:
break
page += 1
return results
def save_results(self, output_path:str, data):
with open(output_path, 'w') as output_file:
json.dump(data, output_file)
def get_builds(self, json_path: str):
with open(json_path) as json_file:
builds = json.load(json_file)
build_dict = {}
for b in builds:
build = Build(b)
build_dict[build.number] = build
return build_dict
if __name__ == '__main__':
parser = argparse.ArgumentParser(description='Process some integers.')
parser.add_argument('llvm_path')
parser.add_argument('token')
args = parser.parse_args()
CACHE_FILE = 'tmp/bklogs.json'
bk = BuildKiteMasterStats(args.llvm_path, args.token)
if not os.path.exists(CACHE_FILE):
results = bk.get_stats('llvm-project','llvm-master-build')
bk.save_results(CACHE_FILE, results)
builds = bk.get_builds(CACHE_FILE)
last_fail = None
fail_count = 0
start_time = None
for build_number in sorted(builds.keys()):
if build_number < 50:
# skip the first builds as they might not be mature enough
continue
build = builds[build_number]
if build.has_passed:
if last_fail is not None:
print(f'* ends with [build {build.number}]({build.web_url})')
print(f'* ends with commit {build.commit}')
print(f'* ends on {build.created_at}')
duration = build.created_at - start_time
print(f'* duration: {duration} [h:m:s]')
print('* cause: # TODO')
print()
last_fail = None
else:
if last_fail is None:
print(f'# Outage {fail_count}')
print()
print(f'* starts with [build {build.number}]({build.web_url})')
print(f'* starts with commit {build.commit}')
print(f'* starts on {build.created_at}')
fail_count += 1
start_time = build.created_at
else:
pass
last_fail = build.number