#Copyright 2019 gRPC authors. # # 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. """Generate draft and release notes in Markdown from Github PRs. You'll need a github API token to avoid being rate-limited. See https://help.github.com/articles/creating-a-personal-access-token-for-the-command-line/ This script collects PRs using "git log X..Y" from local repo where X and Y are tags or release branch names of previous and current releases respectively. Typically, notes are generated before the release branch is labelled so Y is almost always the name of the release branch. X is the previous release branch if this is not a patch release. Otherwise, it is the previous release tag. For example, for release v1.17.0, X will be origin/v1.16.x and for release v1.17.3, X will be v1.17.2. In both cases Y will be origin/v1.17.x. """ from collections import defaultdict import base64 import json content_header = """Draft Release Notes For {version} -- Final release notes will be generated from the PR titles that have *"release notes:yes"* label. If you have any additional notes please add them below. These will be appended to auto generated release notes. Previous releases notes are [here](https://github.com/grpc/grpc/releases). **Also, look at the PRs listed below against your name.** Please apply the missing labels and make necessary corrections (like fixing the title) to the PR in Github. Final release notes will be generated just before the release on {date}. Add additional notes not in PRs -- Core - C++ - C# - Objective-C - PHP - Python - Ruby - """ rl_header = """This is the {version} release ([{name}](https://github.com/grpc/grpc/blob/master/doc/g_stands_for.md)) of gRPC Core. Please see the notes for the previous releases here: https://github.com/grpc/grpc/releases. Please consult https://grpc.io/ for all information regarding this product. This release contains refinements, improvements, and bug fixes, with highlights listed below. """ HTML_URL = "https://github.com/grpc/grpc/pull/" API_URL = 'https://api.github.com/repos/grpc/grpc/pulls/' def get_commit_log(prevRelLabel, relBranch): """Return the output of 'git log --pretty=online --merges prevRelLabel..relBranch' """ import subprocess print("Running git log --pretty=oneline --merges " + prevRelLabel + ".." + relBranch) return subprocess.check_output([ "git", "log", "--pretty=oneline", "--merges", "%s..%s" % (prevRelLabel, relBranch) ]) def get_pr_data(pr_num): """Get the PR data from github. Return 'error' on exception""" try: from urllib2 import Request, urlopen, HTTPError except ImportError: import urllib from urllib.request import Request, urlopen, HTTPError url = API_URL + pr_num req = Request(url) req.add_header('Authorization', 'token %s' % TOKEN) try: f = urlopen(req) response = json.loads(f.read().decode('utf-8')) #print(response) except HTTPError as e: response = json.loads(e.fp.read().decode('utf-8')) if 'message' in response: print(response['message']) response = "error" return response def get_pr_titles(gitLogs): import re error_count = 0 match = b"Merge pull request #(\d+)" prlist = re.findall(match, gitLogs, re.MULTILINE) print("\nPRs matching 'Merge pull request #':") print(prlist) print("\n") langs_pr = defaultdict(list) for pr_num in prlist: pr_num = str(pr_num) print("---------- getting data for PR " + pr_num) pr = get_pr_data(pr_num) if pr == "error": print("\n***ERROR*** Error in getting data for PR " + pr_num + "\n") error_count += 1 continue rl_no_found = False rl_yes_found = False lang_found = False for label in pr['labels']: if label['name'] == 'release notes: yes': rl_yes_found = True elif label['name'] == 'release notes: no': rl_no_found = True elif label['name'].startswith('lang/'): lang_found = True lang = label['name'].split('/')[1].lower() #lang = lang[0].upper() + lang[1:] body = pr["title"] if not body.endswith("."): body = body + "." if not pr["merged_by"]: print("\n***ERROR***: No merge_by found for PR " + pr_num + "\n") error_count += 1 continue prline = "- " + body + " ([#" + pr_num + "](" + HTML_URL + pr_num + "))" detail = "- " + pr["merged_by"]["login"] + "@ " + prline prline = prline.encode('ascii', 'ignore') detail = detail.encode('ascii', 'ignore') print(detail) #if no RL label if not rl_no_found and not rl_yes_found: print("Release notes label missing for " + pr_num) langs_pr["nolabel"].append(detail) elif rl_yes_found and not lang_found: print("Lang label missing for " + pr_num) langs_pr["nolang"].append(detail) elif rl_no_found: print("'Release notes:no' found for " + pr_num) langs_pr["notinrel"].append(detail) elif rl_yes_found: print("'Release notes:yes' found for " + pr_num + " with lang " + lang) langs_pr["inrel"].append(detail) langs_pr[lang].append(prline) return langs_pr, error_count def write_draft(langs_pr, file, version, date): file.write(content_header.format(version=version, date=date)) file.write("PRs with missing release notes label - please fix in Github\n") file.write("---\n") file.write("\n") if langs_pr["nolabel"]: langs_pr["nolabel"].sort() file.write("\n".join(langs_pr["nolabel"])) else: file.write("- None") file.write("\n") file.write("\n") file.write("PRs with missing lang label - please fix in Github\n") file.write("---\n") file.write("\n") if langs_pr["nolang"]: langs_pr["nolang"].sort() file.write("\n".join(langs_pr["nolang"])) else: file.write("- None") file.write("\n") file.write("\n") file.write( "PRs going into release notes - please check title and fix in Github. Do not edit here.\n" ) file.write("---\n") file.write("\n") if langs_pr["inrel"]: langs_pr["inrel"].sort() file.write("\n".join(langs_pr["inrel"])) else: file.write("- None") file.write("\n") file.write("\n") file.write("PRs not going into release notes\n") file.write("---\n") file.write("\n") if langs_pr["notinrel"]: langs_pr["notinrel"].sort() file.write("\n".join(langs_pr["notinrel"])) else: file.write("- None") file.write("\n") file.write("\n") def write_rel_notes(langs_pr, file, version, name): file.write(rl_header.format(version=version, name=name)) if langs_pr["core"]: file.write("Core\n---\n\n") file.write("\n".join(langs_pr["core"])) file.write("\n") file.write("\n") if langs_pr["c++"]: file.write("C++\n---\n\n") file.write("\n".join(langs_pr["c++"])) file.write("\n") file.write("\n") if langs_pr["c#"]: file.write("C#\n---\n\n") file.write("\n".join(langs_pr["c#"])) file.write("\n") file.write("\n") if langs_pr["go"]: file.write("Go\n---\n\n") file.write("\n".join(langs_pr["go"])) file.write("\n") file.write("\n") if langs_pr["Java"]: file.write("Java\n---\n\n") file.write("\n".join(langs_pr["Java"])) file.write("\n") file.write("\n") if langs_pr["node"]: file.write("Node\n---\n\n") file.write("\n".join(langs_pr["node"])) file.write("\n") file.write("\n") if langs_pr["objc"]: file.write("Objective-C\n---\n\n") file.write("\n".join(langs_pr["objc"])) file.write("\n") file.write("\n") if langs_pr["php"]: file.write("PHP\n---\n\n") file.write("\n".join(langs_pr["php"])) file.write("\n") file.write("\n") if langs_pr["python"]: file.write("Python\n---\n\n") file.write("\n".join(langs_pr["python"])) file.write("\n") file.write("\n") if langs_pr["ruby"]: file.write("Ruby\n---\n\n") file.write("\n".join(langs_pr["ruby"])) file.write("\n") file.write("\n") if langs_pr["other"]: file.write("Other\n---\n\n") file.write("\n".join(langs_pr["other"])) file.write("\n") file.write("\n") def build_args_parser(): import argparse parser = argparse.ArgumentParser() parser.add_argument('release_version', type=str, help='New release version e.g. 1.14.0') parser.add_argument('release_name', type=str, help='New release name e.g. gladiolus') parser.add_argument('release_date', type=str, help='Release date e.g. 7/30/18') parser.add_argument('previous_release_label', type=str, help='Previous release branch/tag e.g. v1.13.x') parser.add_argument('release_branch', type=str, help='Current release branch e.g. origin/v1.14.x') parser.add_argument('draft_filename', type=str, help='Name of the draft file e.g. draft.md') parser.add_argument('release_notes_filename', type=str, help='Name of the release notes file e.g. relnotes.md') parser.add_argument('--token', type=str, default='', help='GitHub API token to avoid being rate limited') return parser def main(): import os global TOKEN parser = build_args_parser() args = parser.parse_args() version, name, date = args.release_version, args.release_name, args.release_date start, end = args.previous_release_label, args.release_branch TOKEN = args.token if TOKEN == '': try: TOKEN = os.environ["GITHUB_TOKEN"] except: pass if TOKEN == '': print( "Error: Github API token required. Either include param --token= or set environment variable GITHUB_TOKEN to your github token" ) return langs_pr, error_count = get_pr_titles(get_commit_log(start, end)) draft_file, rel_file = args.draft_filename, args.release_notes_filename filename = os.path.abspath(draft_file) if os.path.exists(filename): file = open(filename, 'r+') else: file = open(filename, 'w') file.seek(0) write_draft(langs_pr, file, version, date) file.truncate() file.close() print("\nDraft notes written to " + filename) filename = os.path.abspath(rel_file) if os.path.exists(filename): file = open(filename, 'r+') else: file = open(filename, 'w') file.seek(0) write_rel_notes(langs_pr, file, version, name) file.truncate() file.close() print("\nRelease notes written to " + filename) if error_count > 0: print("\n\n*** Errors were encountered. See log. *********\n") if __name__ == "__main__": main()