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zephyr/scripts/release/list_backports.py

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#!/usr/bin/env python3
# Copyright (c) 2022, Meta
#
# SPDX-License-Identifier: Apache-2.0
"""Query issues in a release branch
This script searches for issues referenced via pull-requests in a release
branch in order to simplify tracking changes such as automated backports,
manual backports, security fixes, and stability fixes.
A formatted report is printed to standard output either in JSON or
reStructuredText.
Since an issue is required for all changes to release branches, merged PRs
must have at least one instance of the phrase "Fixes #1234" in the body. This
script will throw an error if a PR has been made without an associated issue.
Usage:
./scripts/release/list_backports.py \
-t ~/.ghtoken \
-b v2.7-branch \
-s 2021-12-15 -e 2022-04-22 \
-P 45074 -P 45868 -P 44918 -P 41234 -P 41174 \
-j | jq . | tee /tmp/backports.json
GITHUB_TOKEN="<secret>" \
./scripts/release/list_backports.py \
-b v3.0-branch \
-p 43381 \
-j | jq . | tee /tmp/backports.json
"""
import argparse
from datetime import datetime, timedelta
import io
import json
import logging
import os
import re
import sys
# Requires PyGithub
from github import Github
# https://gist.github.com/monkut/e60eea811ef085a6540f
def valid_date_type(arg_date_str):
"""custom argparse *date* type for user dates values given from the
command line"""
try:
return datetime.strptime(arg_date_str, "%Y-%m-%d")
except ValueError:
msg = "Given Date ({0}) not valid! Expected format, YYYY-MM-DD!".format(arg_date_str)
raise argparse.ArgumentTypeError(msg)
def parse_args():
parser = argparse.ArgumentParser()
parser.add_argument('-t', '--token', dest='tokenfile',
help='File containing GitHub token (alternatively, use GITHUB_TOKEN env variable)', metavar='FILE')
parser.add_argument('-b', '--base', dest='base',
help='branch (base) for PRs (e.g. v2.7-branch)', metavar='BRANCH', required=True)
parser.add_argument('-j', '--json', dest='json', action='store_true',
help='print output in JSON rather than RST')
parser.add_argument('-s', '--start', dest='start', help='start date (YYYY-mm-dd)',
metavar='START_DATE', type=valid_date_type)
parser.add_argument('-e', '--end', dest='end', help='end date (YYYY-mm-dd)',
metavar='END_DATE', type=valid_date_type)
parser.add_argument("-o", "--org", default="zephyrproject-rtos",
help="Github organisation")
parser.add_argument('-p', '--include-pull', dest='includes',
help='include pull request (can be specified multiple times)',
metavar='PR', type=int, action='append', default=[])
parser.add_argument('-P', '--exclude-pull', dest='excludes',
help='exlude pull request (can be specified multiple times, helpful for version bumps and release notes)',
metavar='PR', type=int, action='append', default=[])
parser.add_argument("-r", "--repo", default="zephyr",
help="Github repository")
args = parser.parse_args()
if args.includes:
if getattr(args, 'start'):
logging.error(
'the --start argument should not be used with --include-pull')
return None
if getattr(args, 'end'):
logging.error(
'the --end argument should not be used with --include-pull')
return None
else:
if not getattr(args, 'start'):
logging.error(
'if --include-pr PR is not used, --start START_DATE is required')
return None
if not getattr(args, 'end'):
setattr(args, 'end', datetime.now())
if args.end < args.start:
logging.error(
f'end date {args.end} is before start date {args.start}')
return None
if args.tokenfile:
with open(args.tokenfile, 'r') as file:
token = file.read()
token = token.strip()
else:
if 'GITHUB_TOKEN' not in os.environ:
raise ValueError('No credentials specified')
token = os.environ['GITHUB_TOKEN']
setattr(args, 'token', token)
return args
class Backport(object):
def __init__(self, repo, base, pulls):
self._base = base
self._repo = repo
self._issues = []
self._pulls = pulls
self._pulls_without_an_issue = []
self._pulls_with_invalid_issues = {}
@staticmethod
def by_date_range(repo, base, start_date, end_date, excludes):
"""Create a Backport object with the provided repo,
base, start datetime object, and end datetime objects, and
list of excluded PRs"""
pulls = []
unfiltered_pulls = repo.get_pulls(
base=base, state='closed')
for p in unfiltered_pulls:
if not p.merged:
# only consider merged backports
continue
if p.closed_at < start_date or p.closed_at >= end_date + timedelta(1):
# only concerned with PRs within time window
continue
if p.number in excludes:
# skip PRs that have been explicitly excluded
continue
pulls.append(p)
# paginated_list.sort() does not exist
pulls = sorted(pulls, key=lambda x: x.number)
return Backport(repo, base, pulls)
@staticmethod
def by_included_prs(repo, base, includes):
"""Create a Backport object with the provided repo,
base, and list of included PRs"""
pulls = []
for i in includes:
try:
p = repo.get_pull(i)
except Exception:
p = None
if not p:
logging.error(f'{i} is not a valid pull request')
return None
if p.base.ref != base:
logging.error(
f'{i} is not a valid pull request for base {base} ({p.base.label})')
return None
pulls.append(p)
# paginated_list.sort() does not exist
pulls = sorted(pulls, key=lambda x: x.number)
return Backport(repo, base, pulls)
@staticmethod
def sanitize_title(title):
# TODO: sanitize titles such that they are suitable for both JSON and ReStructured Text
# could also automatically fix titles like "Automated backport of PR #1234"
return title
def print(self):
for i in self.get_issues():
title = Backport.sanitize_title(i.title)
# * :github:`38972` - logging: Cleaning references to tracing in logging
print(f'* :github:`{i.number}` - {title}')
def print_json(self):
issue_objects = []
for i in self.get_issues():
obj = {}
obj['id'] = i.number
obj['title'] = Backport.sanitize_title(i.title)
obj['url'] = f'https://github.com/{self._repo.organization.login}/{self._repo.name}/pull/{i.number}'
issue_objects.append(obj)
print(json.dumps(issue_objects))
def get_pulls(self):
return self._pulls
def get_issues(self):
"""Return GitHub issues fixed in the provided date window"""
if self._issues:
return self._issues
issue_map = {}
self._pulls_without_an_issue = []
self._pulls_with_invalid_issues = {}
for p in self._pulls:
# check for issues in this pr
issues_for_this_pr = {}
with io.StringIO(p.body) as buf:
for line in buf.readlines():
line = line.strip()
match = re.search(r"^Fixes[:]?\s*#([1-9][0-9]*).*", line)
if not match:
match = re.search(
rf"^Fixes[:]?\s*https://github\.com/{self._repo.organization.login}/{self._repo.name}/issues/([1-9][0-9]*).*", line)
if not match:
continue
issue_number = int(match[1])
issue = self._repo.get_issue(issue_number)
if not issue:
if not self._pulls_with_invalid_issues[p.number]:
self._pulls_with_invalid_issues[p.number] = [
issue_number]
else:
self._pulls_with_invalid_issues[p.number].append(
issue_number)
logging.error(
f'https://github.com/{self._repo.organization.login}/{self._repo.name}/pull/{p.number} references invalid issue number {issue_number}')
continue
issues_for_this_pr[issue_number] = issue
# report prs missing issues later
if len(issues_for_this_pr) == 0:
logging.error(
f'https://github.com/{self._repo.organization.login}/{self._repo.name}/pull/{p.number} does not have an associated issue')
self._pulls_without_an_issue.append(p)
continue
# FIXME: when we have upgrade to python3.9+, use "issue_map | issues_for_this_pr"
issue_map = {**issue_map, **issues_for_this_pr}
issues = list(issue_map.values())
# paginated_list.sort() does not exist
issues = sorted(issues, key=lambda x: x.number)
self._issues = issues
return self._issues
def get_pulls_without_issues(self):
if self._pulls_without_an_issue:
return self._pulls_without_an_issue
self.get_issues()
return self._pulls_without_an_issue
def get_pulls_with_invalid_issues(self):
if self._pulls_with_invalid_issues:
return self._pulls_with_invalid_issues
self.get_issues()
return self._pulls_with_invalid_issues
def main():
args = parse_args()
if not args:
return os.EX_DATAERR
try:
gh = Github(args.token)
except Exception:
logging.error('failed to authenticate with GitHub')
return os.EX_DATAERR
try:
repo = gh.get_repo(args.org + '/' + args.repo)
except Exception:
logging.error('failed to obtain Github repository')
return os.EX_DATAERR
bp = None
if args.includes:
bp = Backport.by_included_prs(repo, args.base, set(args.includes))
else:
bp = Backport.by_date_range(repo, args.base,
args.start, args.end, set(args.excludes))
if not bp:
return os.EX_DATAERR
pulls_with_invalid_issues = bp.get_pulls_with_invalid_issues()
if pulls_with_invalid_issues:
logging.error('The following PRs link to invalid issues:')
for (p, lst) in pulls_with_invalid_issues:
logging.error(
f'\nhttps://github.com/{repo.organization.login}/{repo.name}/pull/{p.number}: {lst}')
return os.EX_DATAERR
pulls_without_issues = bp.get_pulls_without_issues()
if pulls_without_issues:
logging.error(
'Please ensure the body of each PR to a release branch contains "Fixes #1234"')
logging.error('The following PRs are lacking associated issues:')
for p in pulls_without_issues:
logging.error(
f'https://github.com/{repo.organization.login}/{repo.name}/pull/{p.number}')
return os.EX_DATAERR
if args.json:
bp.print_json()
else:
bp.print()
return os.EX_OK
if __name__ == '__main__':
sys.exit(main())
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