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"""GitHub Utilities"""
from __future__ import annotations
import json
import os
from typing import Any, Callable, cast, Dict
from urllib.error import HTTPError
from urllib.parse import quote
from urllib.request import Request, urlopen
def gh_fetch_url_and_headers(
url: str,
*,
headers: dict[str, str] | None = None,
data: dict[str, Any] | None = None,
method: str | None = None,
reader: Callable[[Any], Any] = lambda x: x.read(),
) -> tuple[Any, Any]:
if headers is None:
headers = {}
token = os.environ.get("GITHUB_TOKEN")
if token is not None and url.startswith("https://api.github.com/"):
headers["Authorization"] = f"token {token}"
data_ = json.dumps(data).encode() if data is not None else None
try:
with urlopen(Request(url, headers=headers, data=data_, method=method)) as conn:
return conn.headers, reader(conn)
except HTTPError as err:
if err.code == 403 and all(
key in err.headers for key in ["X-RateLimit-Limit", "X-RateLimit-Used"]
):
print(
f"""Rate limit exceeded:
Used: {err.headers['X-RateLimit-Used']}
Limit: {err.headers['X-RateLimit-Limit']}
Remaining: {err.headers['X-RateLimit-Remaining']}
Resets at: {err.headers['x-RateLimit-Reset']}"""
)
raise
def gh_fetch_url(
url: str,
*,
headers: dict[str, str] | None = None,
data: dict[str, Any] | None = None,
method: str | None = None,
reader: Callable[[Any], Any] = lambda x: x.read(),
) -> Any:
return gh_fetch_url_and_headers(
url, headers=headers, data=data, reader=json.load, method=method
)[1]
def _gh_fetch_json_any(
url: str,
params: dict[str, Any] | None = None,
data: dict[str, Any] | None = None,
) -> Any:
headers = {"Accept": "application/vnd.github.v3+json"}
if params is not None and len(params) > 0:
url += "?" + "&".join(
f"{name}={quote(str(val))}" for name, val in params.items()
)
return gh_fetch_url(url, headers=headers, data=data, reader=json.load)
def gh_fetch_json_dict(
url: str,
params: dict[str, Any] | None = None,
data: dict[str, Any] | None = None,
) -> dict[str, Any]:
return cast(Dict[str, Any], _gh_fetch_json_any(url, params, data))
def gh_fetch_commit(org: str, repo: str, sha: str) -> dict[str, Any]:
return gh_fetch_json_dict(
f"https://api.github.com/repos/{org}/{repo}/commits/{sha}"
)
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