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## @file
# GitHub API helper functions.
#
# Copyright (c) Microsoft Corporation.
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
import git
import logging
import re
import requests
from collections import OrderedDict
from edk2toollib.utility_functions import RunPythonScript
from io import StringIO
from typing import List
"""GitHub API helper functions."""
def leave_pr_comment(
token: str, owner: str, repo: str, pr_number: str, comment_body: str
):
"""Leaves a comment on a PR.
Args:
token (str): The GitHub token to use for authentication.
owner (str): The GitHub owner (organization) name.
repo (str): The GitHub repository name (e.g. 'edk2').
pr_number (str): The pull request number.
comment_body (str): The comment text. Markdown is supported.
"""
url = f"https://api.github.com/repos/{owner}/{repo}/issues/{pr_number}/comments"
headers = {
"Authorization": f"Bearer {token}",
"Accept": "application/vnd.github.v3+json",
}
data = {"body": comment_body}
response = requests.post(url, json=data, headers=headers)
response.raise_for_status()
def get_reviewers_for_range(
workspace_path: str,
maintainer_file_path: str,
range_start: str = "master",
range_end: str = "HEAD",
) -> List[str]:
"""Get the reviewers for the current branch.
To get the reviewers for a single commit, set `range_start` and
`range_end` to the commit SHA.
Args:
workspace_path (str): The workspace path.
maintainer_file_path (str): The maintainer file path.
range_start (str, optional): The range start ref. Defaults to "master".
range_end (str, optional): The range end ref. Defaults to "HEAD".
Returns:
List[str]: A list of GitHub usernames.
"""
if range_start == range_end:
commits = [range_start]
else:
commits = [
c.hexsha
for c in git.Repo(workspace_path).iter_commits(
f"{range_start}..{range_end}"
)
]
raw_reviewers = []
for commit_sha in commits:
reviewer_stream_buffer = StringIO()
cmd_ret = RunPythonScript(
maintainer_file_path,
f"-g {commit_sha}",
workingdir=workspace_path,
outstream=reviewer_stream_buffer,
logging_level=logging.INFO,
)
if cmd_ret != 0:
print(
f"::error title=Reviewer Lookup Error!::Error calling GetMaintainer.py: [{cmd_ret}]: {reviewer_stream_buffer.getvalue()}"
)
return []
commit_reviewers = reviewer_stream_buffer.getvalue()
pattern = r"\[(.*?)\]"
matches = re.findall(pattern, commit_reviewers)
if not matches:
return []
print(
f"::debug title=Commit {commit_sha[:7]} Reviewer(s)::{', '.join(matches)}"
)
raw_reviewers.extend(matches)
reviewers = list(OrderedDict.fromkeys([r.strip() for r in raw_reviewers]))
print(f"::debug title=Total Reviewer Set::{', '.join(reviewers)}")
return reviewers
def get_pr_sha(token: str, owner: str, repo: str, pr_number: str) -> str:
"""Returns the commit SHA of given PR branch.
This returns the SHA of the merge commit that GitHub creates from a
PR branch. This commit contains all of the files in the PR branch in
a single commit.
Args:
token (str): The GitHub token to use for authentication.
owner (str): The GitHub owner (organization) name.
repo (str): The GitHub repository name (e.g. 'edk2').
pr_number (str): The pull request number.
Returns:
str: The commit SHA of the PR branch. An empty string is returned
if the request fails.
"""
url = f"https://api.github.com/repos/{owner}/{repo}/pulls/{pr_number}"
headers = {
"Authorization": f"Bearer {token}",
"Accept": "application/vnd.github.v3+json",
}
response = requests.get(url, headers=headers)
try:
response.raise_for_status()
except requests.exceptions.HTTPError:
print(
f"::error title=HTTP Error!::Error getting PR Commit Info: {response.reason}"
)
return ""
commit_sha = response.json()["merge_commit_sha"]
print(f"::debug title=PR {pr_number} Commit SHA::{commit_sha}")
return commit_sha
def download_gh_file(github_url: str, local_path: str, token=None):
"""Downloads a file from GitHub.
Args:
github_url (str): The GitHub raw file URL.
local_path (str): A local path to write the file contents to.
token (_type_, optional): A GitHub authentication token.
Only needed for a private repo. Defaults to None.
"""
headers = {}
if token:
headers["Authorization"] = f"Bearer {token}"
try:
response = requests.get(github_url, headers=headers)
response.raise_for_status()
except requests.exceptions.HTTPError:
print(
f"::error title=HTTP Error!::Error downloading {github_url}: {response.reason}"
)
return
with open(local_path, "w", encoding="utf-8") as file:
file.write(response.text)
def add_reviewers_to_pr(
token: str, owner: str, repo: str, pr_number: str, user_names: List[str]
):
"""Adds the set of GitHub usernames as reviewers to the PR.
Args:
token (str): The GitHub token to use for authentication.
owner (str): The GitHub owner (organization) name.
repo (str): The GitHub repository name (e.g. 'edk2').
pr_number (str): The pull request number.
user_names (List[str]): List of GitHub usernames to add as reviewers.
"""
headers = {
"Authorization": f"Bearer {token}",
"Accept": "application/vnd.github.v3+json",
}
pr_author_url = f"https://api.github.com/repos/{owner}/{repo}/pulls/{pr_number}"
url = f"https://api.github.com/repos/{owner}/{repo}/pulls/{pr_number}/requested_reviewers"
response = requests.get(pr_author_url, headers=headers)
if response.status_code != 200:
print(f"::error title=HTTP Error!::Error getting PR author: {response.reason}")
return
pr_author = response.json().get("user").get("login").strip()
while pr_author in user_names:
user_names.remove(pr_author)
data = {"reviewers": user_names}
response = requests.post(url, json=data, headers=headers)
try:
response.raise_for_status()
except requests.exceptions.HTTPError:
if (
response.status_code == 422
and "Reviews may only be requested from collaborators"
in response.json().get("message")
):
print(
f"::error title=User is not a Collaborator!::{response.json().get('message')}"
)
leave_pr_comment(
token,
owner,
repo,
pr_number,
f"⚠ **WARNING: Cannot add reviewers**: A user specified as a "
f"reviewer for this PR is not a collaborator "
f"of the edk2 repository. Please add them as a collaborator to the "
f"repository and re-request the review.\n\n"
f"Users requested:\n{', '.join(user_names)}",
)
elif response.status_code == 422:
print(
"::error title=Invalid Request!::The request is invalid. "
"Verify the API request string."
)
|
