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#!/usr/bin/env python3
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import os
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import json
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import base64
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import sqlite3
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import logging
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import hmac
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import hashlib
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import datetime as dt
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from typing import Optional, Tuple
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import httpx
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from fastapi import FastAPI, Header, HTTPException, Request
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from fastapi.responses import JSONResponse, PlainTextResponse
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from github import Github, Auth
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# ------------- Logging -------------
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logging.basicConfig(
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level=os.environ.get("LOG_LEVEL", "INFO"),
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format="[%(asctime)s] %(levelname)s %(message)s",
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datefmt="%Y-%m-%dT%H:%M:%SZ",
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)
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logging.Formatter.converter = dt.datetime.utctimetuple
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logger = logging.getLogger(__name__)
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# ------------- Config via env -------------
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GITHUB_TOKEN = os.environ["GITHUB_TOKEN"]
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GITHUB_OWNER = os.environ["GITHUB_OWNER"] # e.g. Koozali-SME-Server
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WEBHOOK_SECRET = os.environ["WEBHOOK_SECRET"] # same secret configured in GitHub webhook
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# For canonical link in messages (where to direct contributors)
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GITEA_BASE_URL = os.environ.get("GITEA_BASE_URL", "https://src.koozali.org")
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GITEA_ORG = os.environ.get("GITEA_ORG", "smeserver")
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# Bugzilla config
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BUGZILLA_BASE_URL = os.environ.get("BUGZILLA_BASE_URL", "https://bugs.koozali.org")
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BUGZILLA_AUTH_MODE = os.environ.get("BUGZILLA_AUTH_MODE", "basic") # "basic" or "api_key"
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BUGZILLA_USER = os.environ.get("BUGZILLA_USER", "brianr")
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BUGZILLA_PASSWORD = os.environ.get("BUGZILLA_PASSWORD", "")
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BUGZILLA_API_KEY = os.environ.get("BUGZILLA_API_KEY", "")
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BUGZILLA_PRODUCT = os.environ.get("BUGZILLA_PRODUCT", "SME11")
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BUGZILLA_COMPONENT_FALLBACK = os.environ.get("BUGZILLA_COMPONENT_FALLBACK", "General")
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BUGZILLA_ATTACH_DIFF = os.environ.get("BUGZILLA_ATTACH_DIFF", "true").lower() == "true"
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# Policy: keep PR open on Bugzilla failure (your chosen behavior)
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KEEP_PR_OPEN_ON_BZ_FAIL = True
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BUGZILLA_FAILURE_LABEL = os.environ.get("BUGZILLA_FAILURE_LABEL", "bugzilla-needed")
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# SQLite for PR->Bug mapping
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STATE_PATH = os.environ.get("STATE_PATH", "./webhook_state.sqlite")
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# ------------- Clients -------------
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class State:
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def __init__(self, path: str):
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self.conn = sqlite3.connect(path, check_same_thread=False)
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self._init()
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def _init(self):
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c = self.conn.cursor()
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c.execute("""
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CREATE TABLE IF NOT EXISTS pr_map (
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pr_key TEXT PRIMARY KEY,
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bug_id INTEGER NOT NULL,
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created_at TEXT NOT NULL,
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updated_at TEXT NOT NULL
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)""")
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self.conn.commit()
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def get_bug(self, pr_key: str) -> Optional[int]:
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c = self.conn.cursor()
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c.execute("SELECT bug_id FROM pr_map WHERE pr_key=?", (pr_key,))
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row = c.fetchone()
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return row[0] if row else None
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def set_bug(self, pr_key: str, bug_id: int):
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now = dt.datetime.utcnow().replace(microsecond=0).isoformat() + "Z"
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c = self.conn.cursor()
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c.execute("""
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INSERT INTO pr_map (pr_key, bug_id, created_at, updated_at)
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VALUES (?, ?, ?, ?)
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ON CONFLICT(pr_key) DO UPDATE SET bug_id=excluded.bug_id, updated_at=excluded.updated_at
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""", (pr_key, bug_id, now, now))
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self.conn.commit()
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class Bugzilla:
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def __init__(self):
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self.base = BUGZILLA_BASE_URL.rstrip("/")
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self.auth_mode = BUGZILLA_AUTH_MODE
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def _headers(self):
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h = {"Accept": "application/json"}
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if self.auth_mode == "api_key" and BUGZILLA_API_KEY:
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h["X-BUGZILLA-API-KEY"] = BUGZILLA_API_KEY
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return h
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def _auth(self) -> Optional[Tuple[str, str]]:
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if self.auth_mode == "basic":
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return (BUGZILLA_USER, BUGZILLA_PASSWORD)
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return None
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def create_bug(self, summary: str, description: str, component: str) -> int:
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url = f"{self.base}/rest/bug"
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payload = {
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"product": BUGZILLA_PRODUCT,
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"component": component or BUGZILLA_COMPONENT_FALLBACK,
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"summary": summary,
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"description": description,
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}
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r = httpx.post(url, headers=self._headers(), auth=self._auth(), json=payload, timeout=60)
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if r.status_code not in (200, 201):
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raise RuntimeError(f"Bugzilla create failed: {r.status_code} {r.text}")
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data = r.json()
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bug_id = data.get("id") or (data.get("bugs") and data["bugs"][0]["id"])
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if not bug_id:
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raise RuntimeError("Bugzilla response missing bug id")
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return int(bug_id)
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def add_attachment(self, bug_id: int, filename: str, summary: str, data_bytes: bytes):
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url = f"{self.base}/rest/bug/{bug_id}/attachment"
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payload = {
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"ids": [bug_id],
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"data": base64.b64encode(data_bytes).decode("ascii"),
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"file_name": filename,
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"summary": summary,
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"content_type": "text/x-patch",
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"is_patch": True,
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}
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r = httpx.post(url, headers=self._headers(), auth=self._auth(), json=payload, timeout=120)
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if r.status_code not in (200, 201):
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raise RuntimeError(f"Bugzilla attach failed: {r.status_code} {r.text}")
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def add_comment(self, bug_id: int, comment: str):
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url = f"{self.base}/rest/bug/{bug_id}/comment"
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payload = {"comment": comment}
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r = httpx.post(url, headers=self._headers(), auth=self._auth(), json=payload, timeout=60)
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if r.status_code not in (200, 201):
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raise RuntimeError(f"Bugzilla comment failed: {r.status_code} {r.text}")
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# ------------- GitHub client -------------
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gh = Github(auth=Auth.Token(GITHUB_TOKEN))
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bz = Bugzilla()
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state = State(STATE_PATH)
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# ------------- App -------------
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app = FastAPI()
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def verify_signature(secret: str, body: bytes, signature: str):
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if not signature:
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raise HTTPException(status_code=401, detail="Missing signature")
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expected = "sha256=" + hmac.new(secret.encode("utf-8"), body, hashlib.sha256).hexdigest()
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if not hmac.compare_digest(expected, signature):
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raise HTTPException(status_code=401, detail="Invalid signature")
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def pr_comment_success(gitea_repo_url: str, bug_id: int) -> str:
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return (
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"Thanks for the contribution!\n\n"
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"This repository is a read-only mirror of the canonical repo on Gitea:\n"
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f"- Canonical: {gitea_repo_url}\n"
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f"- Please file and discuss changes in Bugzilla: {BUGZILLA_BASE_URL}\n\n"
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f"We created Bug {bug_id} to track this proposal:\n"
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f"- {BUGZILLA_BASE_URL}/show_bug.cgi?id={bug_id}\n\n"
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"This pull request will be closed here. Further pushes to this PR branch will be mirrored as updated attachments on the Bug.\n"
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)
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def pr_comment_failure(gitea_repo_url: str, repo: str, pr_url: str, target_branch: str) -> str:
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return (
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"Thanks for the contribution!\n\n"
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"This repository is a read-only mirror of the canonical repo on Gitea:\n"
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f"- Canonical: {gitea_repo_url}\n\n"
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"We were unable to create a Bugzilla ticket automatically at this time.\n"
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f"Please open a bug at {BUGZILLA_BASE_URL} (Product: {BUGZILLA_PRODUCT}, Component: {repo}) and include:\n"
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f"- GitHub PR: {pr_url}\n"
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f"- Target branch: {target_branch}\n"
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"- Summary and rationale for the change\n\n"
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"This pull request will remain open for now. Once a Bugzilla ticket exists, our maintainers will reference it here and proceed with review on Bugzilla.\n"
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)
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@app.get("/healthz")
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async def healthz():
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return PlainTextResponse("ok")
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@app.post("/webhook/github")
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async def github_webhook(
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request: Request,
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x_hub_signature_256: str = Header(None),
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x_github_event: str = Header(None),
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):
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body = await request.body()
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verify_signature(WEBHOOK_SECRET, body, x_hub_signature_256)
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try:
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payload = json.loads(body.decode("utf-8"))
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except Exception:
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raise HTTPException(status_code=400, detail="Invalid JSON")
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if x_github_event != "pull_request":
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return JSONResponse({"status": "ignored", "event": x_github_event})
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action = payload.get("action")
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if action not in ("opened", "reopened", "synchronize", "ready_for_review"):
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return JSONResponse({"status": "ignored", "action": action})
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repo_full = payload["repository"]["full_name"] # owner/repo on GitHub
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owner = payload["repository"]["owner"]["login"]
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repo = payload["repository"]["name"]
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pr = payload["pull_request"]
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pr_num = pr["number"]
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pr_url = pr["html_url"]
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pr_title = pr.get("title") or ""
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pr_body = pr.get("body") or ""
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base = pr["base"]
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head = pr["head"]
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target_branch = base["ref"]
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head_sha = head["sha"][:7]
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gitea_repo_url = f"{GITEA_BASE_URL}/{GITEA_ORG}/{repo}"
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pr_key = f"{repo_full}#{pr_num}"
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bug_id = state.get_bug(pr_key)
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gh_repo = gh.get_repo(repo_full)
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def fetch_pr_patch() -> bytes:
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url = f"https://api.github.com/repos/{owner}/{repo}/pulls/{pr_num}"
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r = httpx.get(url, headers={"Accept": "application/vnd.github.v3.patch", "Authorization": f"token {GITHUB_TOKEN}"}, timeout=120)
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r.raise_for_status()
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return r.content
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if bug_id is None and action in ("opened", "reopened", "ready_for_review", "synchronize"):
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# Create Bugzilla bug
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summary = f"[GH PR #{pr_num}] {GITEA_ORG}/{repo}: {pr_title}"
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description = (
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"Source\n"
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f"- Canonical repo (Gitea): {gitea_repo_url}\n"
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f"- GitHub mirror PR: {pr_url}\n\n"
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"Project policy\n"
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"This GitHub repository is a read-only mirror. Reviews and decisions happen in Bugzilla.\n\n"
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"Submitter’s notes\n"
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f"{pr_body}\n"
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)
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component = repo # change if you need fallback
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try:
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bug_id = bz.create_bug(summary, description, component)
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state.set_bug(pr_key, bug_id)
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logger.info(f"Created Bugzilla bug {bug_id} for {pr_key}")
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except Exception as e:
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logger.error(f"Bugzilla create failed for {pr_key}: {e}")
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# Post failure comment and keep PR open
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gh_repo.get_pull(pr_num).create_issue_comment(pr_comment_failure(gitea_repo_url, repo, pr_url, target_branch))
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if BUGZILLA_FAILURE_LABEL:
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with contextlib.suppress(Exception):
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gh_repo.create_label(BUGZILLA_FAILURE_LABEL, "ededed")
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with contextlib.suppress(Exception):
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gh_repo.get_issue(pr_num).add_to_labels(BUGZILLA_FAILURE_LABEL)
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return JSONResponse({"status": "bugzilla_failed"})
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# Attach patch (optional)
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if BUGZILLA_ATTACH_DIFF:
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try:
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patch = fetch_pr_patch()
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bz.add_attachment(
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bug_id=bug_id,
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filename=f"PR-{pr_num}-{head_sha}.patch",
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summary=f"Patch for PR #{pr_num} ({head_sha})",
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data_bytes=patch
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)
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except Exception as e:
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logger.warning(f"Attach patch failed for bug {bug_id}: {e}")
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# Comment and close PR
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comment = pr_comment_success(gitea_repo_url, bug_id)
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pr_obj = gh_repo.get_pull(pr_num)
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pr_obj.create_issue_comment(comment)
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if pr_obj.state != "closed":
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pr_obj.edit(state="closed")
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return JSONResponse({"status": "ok", "bug_id": bug_id})
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elif bug_id is not None and action == "synchronize":
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# Attach updated patch to existing bug and ensure PR closed
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try:
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patch = fetch_pr_patch()
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bz.add_attachment(
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bug_id=bug_id,
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filename=f"PR-{pr_num}-{head_sha}.patch",
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summary=f"Updated patch for PR #{pr_num} ({head_sha})",
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data_bytes=patch
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)
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pr_obj = gh_repo.get_pull(pr_num)
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if pr_obj.state != "closed":
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pr_obj.edit(state="closed")
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return JSONResponse({"status": "ok", "bug_id": bug_id})
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except Exception as e:
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logger.error(f"Attach update failed for bug {bug_id}: {e}")
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return JSONResponse({"status": "attach_failed", "bug_id": bug_id})
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return JSONResponse({"status": "noop"})
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Reference in New Issue
Block a user