druid/distribution/bin/find-missing-backports.py

124 lines
5.1 KiB
Python
Executable File

#!/usr/bin/env python3
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You 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.
import os
import re
import requests
import subprocess
import sys
pr_number_pattern = r'\(#(\d+)\)'
backport_pattern = r'\[Backport[^\]]*\]'
def extract_pr_title_from_commit_message(commit_msg):
# Extract commit message except the pr number
commit_msg = re.sub(backport_pattern, '', commit_msg)
pr_num_pos = commit_msg.find("(#")
if pr_num_pos < 0:
pr_num_pos = len(commit_msg)
return commit_msg[:pr_num_pos].strip()
def extract_pr_numbers_from_commit_message(commit_msg):
extracted_numbers = re.findall(pr_number_pattern, commit_msg)
return extracted_numbers
def find_missing_backports(pr_jsons, release_pr_subjects, release_pr_numbers):
for pr in pr_jsons:
backport_found = False
for label in pr['labels']:
if label['name'] == 'Backport':
backport_found = True
pr_title_candidate = extract_pr_title_from_commit_message(pr['title'])
if pr_title_candidate in release_pr_subjects:
backport_found = True
if str(pr['number']) in release_pr_numbers:
backport_found = True
if backport_found == False:
print("Missing backport found for PR {}, url: {}".format(pr['number'], pr['html_url']))
def find_next_url(links):
for link in links:
link = link.strip()
if link.find("rel=\"next\"") >= 0:
match_result = re.match("<https.*>", link)
if match_result is None:
raise Exception("Next link[{}] is found but can't find url".format(link))
else:
url_holder = match_result.group(0)
return url_holder[1:-1]
return None
if len(sys.argv) != 4:
sys.stderr.write('Incorrect program arguments.\n')
sys.stderr.write('Usage: program <github-username> <previous-major-release-branch> <current-major-release-branch>\n')
sys.stderr.write(" e.g., program myusername 29.0.0 30.0.0\n")
sys.stderr.write(" Ensure that the title of the milestone is the same as the release branch.\n")
sys.stderr.write(" Ensure that a GIT_TOKEN environment variable containing a personal access token has been set.\n")
sys.exit(1)
github_username = sys.argv[1]
previous_branch = sys.argv[2]
release_branch = sys.argv[3]
milestone_title = release_branch
master_branch = "master"
command = "git log {}..{} --oneline | tail -1".format(master_branch, previous_branch)
# Find the commit where the previous release branch was cut from master
previous_branch_first_commit = subprocess.check_output(command, shell=True).decode('UTF-8')
match_result = re.match("(\w+) .*", previous_branch_first_commit)
if match_result is None:
raise Exception("Can't find the first commit of the previous release.")
previous_branch_first_commit = match_result.group(1)
print("Previous branch: {}, first commit: {}".format(previous_branch, previous_branch_first_commit))
# Find all commits between that commit and the current release branch
command = "git log --pretty=tformat:%s {}..{}".format(previous_branch_first_commit, release_branch)
all_release_commits = subprocess.check_output(command, shell=True).decode('UTF-8')
release_pr_subjects = set()
release_pr_numbers = set()
for commit_msg in all_release_commits.splitlines():
title = extract_pr_title_from_commit_message(commit_msg)
pr_numbers = extract_pr_numbers_from_commit_message(commit_msg)
release_pr_subjects.add(title)
release_pr_numbers.update(pr_numbers)
print("Number of release PR subjects: {}".format(len(release_pr_subjects)))
# Get all closed PRs and filter out with milestone
pr_items = []
page = 0
while True:
page = page + 1
pr_url = "https://api.github.com/search/issues?per_page=50&page={}&q=milestone:{}+type:pr+is:merged+is:closed+repo:apache/druid".format(page,milestone_title)
pr_resp = requests.get(pr_url, auth=(github_username, os.environ["GIT_TOKEN"])).json()
if pr_resp['incomplete_results']:
sys.stderr.write('This script cannot handle incomplete results')
sys.exit(1)
pr_items.extend(pr_resp['items'])
if len(pr_resp['items']) < 50:
print("Total PRs for current milestone: {}".format(len(pr_items)))
print("Total expected count: {}".format(pr_resp['total_count']))
if pr_resp['total_count'] != len(pr_items):
sys.stderr.write('Expected PR count does not match with number of PRs fetched')
sys.exit(1)
break
find_missing_backports(pr_items, release_pr_subjects, release_pr_numbers)