mirror of
https://github.com/apache/superset.git
synced 2024-09-18 11:39:49 -04:00
269 lines
8.2 KiB
Python
269 lines
8.2 KiB
Python
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#
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# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership.
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# The ASF licenses this file to You under the Apache License, Version 2.0
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# (the "License"); you may not use this file except in compliance with
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# the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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import json
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import os
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import re
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from dataclasses import dataclass
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from time import sleep
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from typing import Any, Dict, List, Optional, Union
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from urllib import request
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from urllib.error import HTTPError
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import click
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@dataclass
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class GitLog:
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"""
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Represents a git log entry
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"""
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sha: str
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author: str
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time: str
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message: str
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pr_number: Union[int, None] = None
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def __eq__(self, other: object) -> bool:
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""" A log entry is considered equal if it has the same PR number """
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if isinstance(other, self.__class__):
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return other.pr_number == self.pr_number
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return False
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def __repr__(self):
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return f"[{self.pr_number}]: {self.message} {self.time} {self.author}"
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class GitChangeLog:
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"""
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Helper class to output a list of logs entries on a superset changelog format
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We want to map a git author to a github login, for that we call github's API
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"""
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def __init__(self, version: str, logs: List[GitLog]) -> None:
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self._version = version
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self._logs = logs
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self._github_login_cache: Dict[str, Optional[str]] = {}
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self._wait = 10
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def _wait_github_rate_limit(self) -> None:
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"""
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Waits for available rate limit slots on the github API
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"""
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while True:
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rate_limit_payload = self._fetch_github_rate_limit()
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if rate_limit_payload["rate"]["remaining"] > 1:
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break
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print(".", end="", flush=True)
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sleep(self._wait)
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print()
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def _fetch_github_rate_limit(self) -> Dict[str, Any]:
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"""
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Fetches current github rate limit info
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"""
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with request.urlopen(f"https://api.github.com/rate_limit") as response:
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payload = json.loads(response.read())
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return payload
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def _fetch_github_pr(self, pr_number) -> Dict[str, Any]:
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"""
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Fetches a github PR info
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"""
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payload = {}
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try:
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self._wait_github_rate_limit()
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with request.urlopen(
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f"https://api.github.com/repos/apache/incubator-superset/pulls/"
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f"{pr_number}"
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) as response:
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payload = json.loads(response.read())
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except HTTPError as ex:
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print(f"{ex}", flush=True)
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return payload
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def _get_github_login(self, git_log: GitLog) -> Optional[str]:
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"""
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Tries to fetch a github login (username) from a git author
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"""
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author_name = git_log.author
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github_login = self._github_login_cache.get(author_name)
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if github_login:
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return github_login
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pr_info = self._fetch_github_pr(git_log.pr_number)
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if pr_info:
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github_login = pr_info["user"]["login"]
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else:
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github_login = author_name
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# set cache
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self._github_login_cache[author_name] = github_login
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return github_login
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def _get_changelog_version_head(self):
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return f"### {self._version} ({self._logs[0].time})"
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def __repr__(self):
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result = f"\n{self._get_changelog_version_head()}\n"
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for i, log in enumerate(self._logs):
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github_login = self._get_github_login(log)
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if not github_login:
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github_login = log.author
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result = result + (
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f"- [#{log.pr_number}]"
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f"(https://github.com/apache/incubator-superset/pull/{log.pr_number}) "
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f"{log.message} (@{github_login})\n"
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)
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print(f"\r {i}/{len(self._logs)}", end="", flush=True)
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return result
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class GitLogs:
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"""
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Manages git log entries from a specific branch/tag
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Can compare git log entries by PR number
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"""
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def __init__(self, git_ref: str) -> None:
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self._git_ref = git_ref
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self._logs: List[GitLog] = []
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@property
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def git_ref(self) -> str:
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return self._git_ref
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@property
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def logs(self) -> List[GitLog]:
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return self._logs
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def fetch(self):
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self._logs = list(map(self._parse_log, self._git_logs()))[::-1]
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def diff(self, git_logs: "GitLogs") -> List[GitLog]:
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return [log for log in git_logs.logs if log not in self._logs]
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def __repr__(self):
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return f"{self._git_ref}, Log count:{len(self._logs)}"
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def _git_get_current_head(self) -> str:
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output = os.popen("git status | head -1").read()
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match = re.match("(?:HEAD detached at|On branch) (.*)", output)
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if not match:
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return ""
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return match.group(1)
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def _git_checkout(self, git_ref: str):
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os.popen(f"git checkout {git_ref}").read()
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current_head = self._git_get_current_head()
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if current_head != git_ref:
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print(f"Could not checkout {git_ref}")
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exit(1)
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def _git_logs(self) -> List[str]:
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# let's get current git ref so we can revert it back
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current_git_ref = self._git_get_current_head()
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self._git_checkout(self._git_ref)
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output = (
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os.popen('git --no-pager log --pretty=format:"%h|%an|%ad|%s|"')
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.read()
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.split("\n")
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)
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# revert to git ref, let's be nice
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self._git_checkout(current_git_ref)
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return output
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def _parse_log(self, log_item: str) -> GitLog:
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pr_number = None
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split_log_item = log_item.split("|")
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# parse the PR number from the log message
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match = re.match(".*\(\#(\d*)\)", split_log_item[3])
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if match:
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pr_number = int(match.group(1))
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return GitLog(
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sha=split_log_item[0],
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author=split_log_item[1],
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time=split_log_item[2],
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message=split_log_item[3],
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pr_number=pr_number,
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)
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@dataclass
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class BaseParameters:
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previous_logs: GitLogs
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current_logs: GitLogs
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def print_title(message: str) -> None:
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print(f"{50*'-'}")
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print(message)
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print(f"{50*'-'}")
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@click.group()
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@click.pass_context
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@click.option(
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"--previous_version", help="The previous release version",
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)
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@click.option(
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"--current_version", help="The current release version",
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)
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def cli(ctx, previous_version: str, current_version: str):
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""" Welcome to change log generator """
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previous_logs = GitLogs(previous_version)
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current_logs = GitLogs(current_version)
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previous_logs.fetch()
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current_logs.fetch()
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base_parameters = BaseParameters(previous_logs, current_logs)
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ctx.obj = base_parameters
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@cli.command("compare")
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@click.pass_obj
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def compare(base_parameters):
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""" Compares both versions (by PR) """
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previous_logs = base_parameters.previous_logs
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current_logs = base_parameters.current_logs
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print_title(
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f"Pull requests from " f"{current_logs.git_ref} not in {previous_logs.git_ref}"
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)
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previous_diff_logs = previous_logs.diff(current_logs)
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for diff_log in previous_diff_logs:
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print(f"{diff_log}")
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print_title(
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f"Pull requests from " f"{previous_logs.git_ref} not in {current_logs.git_ref}"
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)
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current_diff_logs = current_logs.diff(previous_logs)
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for diff_log in current_diff_logs:
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print(f"{diff_log}")
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@cli.command("changelog")
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@click.pass_obj
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def changelog(base_parameters):
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""" Outputs a changelog (by PR) """
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previous_logs = base_parameters.previous_logs
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current_logs = base_parameters.current_logs
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previous_diff_logs = previous_logs.diff(current_logs)
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print("Fetching github usernames, this may take a while:")
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print(GitChangeLog(current_logs.git_ref, previous_diff_logs[::-1]))
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cli()
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