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grpc/tools/release/release_notes.py

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# 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 json
import logging
import re
import subprocess
import urllib3
logging.basicConfig(level=logging.WARNING)
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 release 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 release {version} ([{name}](https://github.com/grpc/grpc/blob/master/doc/g_stands_for.md)) of gRPC Core.
For gRPC documentation, see [grpc.io](https://grpc.io/). For previous releases, see [Releases](https://github.com/grpc/grpc/releases).
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_detail(commit):
"""Print commit and CL info for the commits that are submitted with CL-first workflow and warn the release manager to check manually."""
glg_command = [
"git",
"log",
"-n 1",
"%s" % commit,
]
output = subprocess.check_output(glg_command).decode("utf-8", "ignore")
matches = re.search("Author:.*<(.*@).*>", output)
author = matches.group(1)
detail = "- " + author + " "
title = output.splitlines()[4].strip()
detail += "- " + title
if not title.endswith("."):
detail += "."
matches = re.search("PiperOrigin-RevId: ([0-9]+)$", output)
cl_num = matches.group(1)
detail += (
" ([commit](https://github.com/grpc/grpc/commit/"
+ commit
+ ")) ([CL](https://critique.corp.google.com/cl/"
+ cl_num
+ "))"
)
return detail
def get_commit_log(prevRelLabel, relBranch):
"""Return the output of 'git log prevRelLabel..relBranch'"""
import subprocess
glg_command = [
"git",
"log",
"--pretty=oneline",
"%s..%s" % (prevRelLabel, relBranch),
]
print(("Running ", " ".join(glg_command)))
return subprocess.check_output(glg_command).decode("utf-8", "ignore")
def get_pr_data(pr_num):
"""Get the PR data from github. Return 'error' on exception"""
http = urllib3.PoolManager(
retries=urllib3.Retry(total=7, backoff_factor=1), timeout=4.0
)
url = API_URL + pr_num
try:
response = http.request(
"GET", url, headers={"Authorization": "token %s" % TOKEN}
)
except urllib3.exceptions.HTTPError as e:
print("Request error:", e.reason)
return "error"
return json.loads(response.data.decode("utf-8"))
def get_pr_titles(gitLogs):
import re
# All commits
match_commit = "^([a-fA-F0-9]+) "
all_commits_set = set(re.findall(match_commit, gitLogs, re.MULTILINE))
error_count = 0
# PRs with merge commits
match_merge_pr = "^([a-fA-F0-9]+) .*Merge pull request #(\d+)"
matches = re.findall(match_merge_pr, gitLogs, re.MULTILINE)
merge_commits = []
prlist_merge_pr = []
if matches:
merge_commits, prlist_merge_pr = zip(*matches)
merge_commits_set = set(merge_commits)
print("\nPRs matching 'Merge pull request #<num>':")
print(prlist_merge_pr)
print("\n")
# PRs using Github's squash & merge feature
match_sq = "^([a-fA-F0-9]+) .*\(#(\d+)\)$"
matches = re.findall(match_sq, gitLogs, re.MULTILINE)
if matches:
sq_commits, prlist_sq = zip(*matches)
sq_commits_set = set(sq_commits)
print("\nPRs matching '[PR Description](#<num>)$'")
print(prlist_sq)
print("\n")
prlist = list(prlist_merge_pr) + list(prlist_sq)
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 + "."
prline = (
"- " + body + " ([#" + pr_num + "](" + HTML_URL + pr_num + "))"
)
detail = "- " + pr["user"]["login"] + "@ " + prline
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)
commits_wo_pr = all_commits_set - merge_commits_set - sq_commits_set
for commit in commits_wo_pr:
langs_pr["nopr"].append(get_commit_detail(commit))
return langs_pr, error_count
def write_draft(langs_pr, file, version, date):
file.write(content_header.format(version=version, date=date))
file.write(
"Commits with missing PR number - please lookup the PR info in the corresponding CL and add to the additional notes if necessary.\n"
)
file.write("---\n")
file.write("\n")
if langs_pr["nopr"]:
file.write("\n".join(langs_pr["nopr"]))
else:
file.write("- None")
file.write("\n")
file.write("\n")
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=<your github 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()