157 lines
4.2 KiB
Python
157 lines
4.2 KiB
Python
import contextlib
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import http.client
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import json
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import urllib.request
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from abc import ABC, abstractmethod
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from collections.abc import Callable
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from pathlib import Path
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from tempfile import NamedTemporaryFile
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from typing import TYPE_CHECKING, Any
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if TYPE_CHECKING:
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from buildbot.process.log import StreamLog
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from collections.abc import Generator
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from buildbot.plugins import util
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from buildbot.process.buildstep import BuildStep
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from twisted.internet import defer, threads
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from twisted.python.failure import Failure
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def slugify_project_name(name: str) -> str:
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return name.replace(".", "-").replace("/", "-")
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def paginated_github_request(
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url: str, token: str, subkey: None | str = None
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) -> list[dict[str, Any]]:
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next_url: str | None = url
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items = []
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while next_url:
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try:
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res = http_request(
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next_url,
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headers={"Authorization": f"Bearer {token}"},
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)
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except OSError as e:
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msg = f"failed to fetch {next_url}: {e}"
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raise HttpError(msg) from e
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next_url = None
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link = res.headers()["Link"]
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if link is not None:
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links = link.split(", ")
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for link in links: # pagination
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link_parts = link.split(";")
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if link_parts[1].strip() == 'rel="next"':
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next_url = link_parts[0][1:-1]
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if subkey is not None:
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items += res.json()[subkey]
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else:
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items += res.json()
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return items
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class HttpResponse:
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def __init__(self, raw: http.client.HTTPResponse) -> None:
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self.raw = raw
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def json(self) -> Any:
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return json.load(self.raw)
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def headers(self) -> http.client.HTTPMessage:
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return self.raw.headers
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class HttpError(Exception):
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pass
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def http_request(
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url: str,
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method: str = "GET",
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headers: dict[str, str] | None = None,
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data: dict[str, Any] | None = None,
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) -> HttpResponse:
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body = None
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if data:
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body = json.dumps(data).encode("ascii")
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if headers is None:
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headers = {}
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headers = headers.copy()
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headers["User-Agent"] = "buildbot-nix"
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if not url.startswith("https:"):
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msg = "url must be https: {url}"
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raise HttpError(msg)
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req = urllib.request.Request( # noqa: S310
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url, headers=headers, method=method, data=body
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)
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try:
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resp = urllib.request.urlopen(req) # noqa: S310
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except urllib.request.HTTPError as e:
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resp_body = ""
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with contextlib.suppress(OSError, UnicodeDecodeError):
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resp_body = e.fp.read().decode("utf-8", "replace")
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msg = f"Request for {method} {url} failed with {e.code} {e.reason}: {resp_body}"
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raise HttpError(msg) from e
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return HttpResponse(resp)
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def atomic_write_file(file: Path, data: str) -> None:
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with NamedTemporaryFile("w", delete=False, dir=file.parent) as f:
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path = Path(f.name)
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try:
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f.write(data)
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f.flush()
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path.rename(file)
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except OSError:
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path.unlink()
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raise
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def filter_repos_by_topic(
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topic: str | None, repos: list[Any], topics: Callable[[Any], list[str]]
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) -> list[Any]:
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return list(
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filter(
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lambda repo: topic is None or topic in topics(repo),
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repos,
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)
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)
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class ThreadDeferredBuildStep(BuildStep, ABC):
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def __init__(
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self,
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**kwargs: Any,
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) -> None:
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super().__init__(**kwargs)
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@abstractmethod
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def run_deferred(self) -> None:
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pass
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@abstractmethod
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def run_post(self) -> Any:
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pass
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@defer.inlineCallbacks
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def run(self) -> Generator[Any, object, Any]:
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d = threads.deferToThread(self.run_deferred) # type: ignore[no-untyped-call]
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self.error_msg = ""
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def error_cb(failure: Failure) -> int:
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self.error_msg += failure.getTraceback()
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return util.FAILURE
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d.addCallbacks(lambda _: util.SUCCESS, error_cb)
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res = yield d
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if res == util.SUCCESS:
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return self.run_post()
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else:
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log: StreamLog = yield self.addLog("log")
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log.addStderr(f"Failed to reload project list: {self.error_msg}")
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return util.FAILURE
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