m3taversal
a7251d7529
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Phase 2 of pipeline refactoring: - pyproject.toml: Python >=3.11, aiohttp dep, dev extras (pytest, pytest-asyncio, ruff). Ruff configured with sane defaults + ignore rules for existing code patterns (implicit Optional, timezone.utc). - .forgejo/workflows/ci.yml: Forgejo Actions CI — syntax check, ruff lint, ruff format, pytest on every PR and push to main. - deploy.sh: Pull + venv update + syntax check + optional restart. Replaces ad-hoc scp workflow. - tests/conftest.py: Shared fixture for in-memory SQLite with full schema. Ready for Phase 4 test suite. - .gitignore: Added venv, pytest cache, coverage, build artifacts. - Ruff auto-fixes: import sorting, unused imports removed across all modules. All files pass ruff check + ruff format. Pentagon-Agent: Ganymede <F99EBFA6-547B-4096-BEEA-1D59C3E4028A>
448 lines
16 KiB
Python
448 lines
16 KiB
Python
"""Merge stage — domain-serialized priority queue with rebase-before-merge.
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Design reviewed by Ganymede (round 2) and Rhea. Key decisions:
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- Two-layer locking: asyncio.Lock per domain (fast path) + prs.status (crash recovery)
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- Rebase-before-merge with pinned force-with-lease SHA (Ganymede)
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- Priority queue: COALESCE(p.priority, s.priority, 'medium') — PR > source > default
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- Human PRs default to 'high', not 'critical' (Ganymede — prevents DoS on pipeline)
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- 5-minute merge timeout — force-reset to 'conflict' (Rhea)
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- Ack comment on human PR discovery (Rhea)
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- Pagination on all Forgejo list endpoints (Ganymede standing rule)
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"""
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import asyncio
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import json
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import logging
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from collections import defaultdict
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from . import config, db
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logger = logging.getLogger("pipeline.merge")
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# In-memory domain locks — fast path, lost on crash (durable layer is prs.status)
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_domain_locks: dict[str, asyncio.Lock] = defaultdict(asyncio.Lock)
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# Merge timeout: if a PR stays 'merging' longer than this, force-reset (Rhea)
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MERGE_TIMEOUT_SECONDS = 300 # 5 minutes
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# --- Git helpers ---
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async def _git(*args, cwd: str = None, timeout: int = 60) -> tuple[int, str]:
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"""Run a git command async. Returns (returncode, stdout+stderr)."""
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proc = await asyncio.create_subprocess_exec(
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"git",
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*args,
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cwd=cwd or str(config.REPO_DIR),
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stdout=asyncio.subprocess.PIPE,
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stderr=asyncio.subprocess.PIPE,
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)
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try:
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stdout, stderr = await asyncio.wait_for(proc.communicate(), timeout=timeout)
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except asyncio.TimeoutError:
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proc.kill()
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await proc.wait()
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return -1, f"git {args[0]} timed out after {timeout}s"
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output = (stdout or b"").decode().strip()
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if stderr:
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output += "\n" + stderr.decode().strip()
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return proc.returncode, output
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async def _forgejo_api(method: str, path: str, body: dict = None) -> dict | list | None:
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"""Call Forgejo API. Returns parsed JSON or None on error."""
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import aiohttp
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url = f"{config.FORGEJO_URL}/api/v1{path}"
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token_file = config.FORGEJO_TOKEN_FILE
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token = token_file.read_text().strip() if token_file.exists() else ""
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headers = {"Authorization": f"token {token}", "Content-Type": "application/json"}
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try:
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async with aiohttp.ClientSession() as session:
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async with session.request(
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method, url, headers=headers, json=body, timeout=aiohttp.ClientTimeout(total=30)
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) as resp:
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if resp.status >= 400:
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text = await resp.text()
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logger.error("Forgejo API %s %s → %d: %s", method, path, resp.status, text[:200])
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return None
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if resp.status == 204: # No content (DELETE)
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return {}
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return await resp.json()
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except Exception as e:
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logger.error("Forgejo API error: %s %s → %s", method, path, e)
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return None
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# --- PR Discovery (Multiplayer v1) ---
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async def discover_external_prs(conn) -> int:
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"""Scan Forgejo for open PRs not tracked in SQLite.
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Human PRs (non-pipeline author) get priority 'high' and origin 'human'.
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Critical is reserved for explicit human override only. (Ganymede)
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Pagination on all Forgejo list endpoints. (Ganymede standing rule #5)
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"""
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known = {r["number"] for r in conn.execute("SELECT number FROM prs").fetchall()}
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discovered = 0
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page = 1
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while True:
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prs = await _forgejo_api(
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"GET",
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f"/repos/{config.FORGEJO_OWNER}/{config.FORGEJO_REPO}/pulls?state=open&limit=50&page={page}",
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)
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if not prs:
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break
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for pr in prs:
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if pr["number"] not in known:
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# Detect origin: pipeline agents have per-agent Forgejo users
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pipeline_users = {"teleo", "rio", "clay", "theseus", "vida", "astra", "leo"}
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author = pr.get("user", {}).get("login", "")
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is_pipeline = author.lower() in pipeline_users
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origin = "pipeline" if is_pipeline else "human"
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priority = "high" if origin == "human" else None
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domain = (
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_detect_domain_from_files(pr) if not is_pipeline else _detect_domain_from_branch(pr["head"]["ref"])
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)
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conn.execute(
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"""INSERT OR IGNORE INTO prs
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(number, branch, status, origin, priority, domain)
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VALUES (?, ?, 'open', ?, ?, ?)""",
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(pr["number"], pr["head"]["ref"], origin, priority, domain),
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)
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db.audit(
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conn,
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"merge",
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"pr_discovered",
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json.dumps(
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{
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"pr": pr["number"],
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"origin": origin,
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"author": pr.get("user", {}).get("login"),
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"priority": priority or "inherited",
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}
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),
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)
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# Ack comment on human PRs so contributor feels acknowledged (Rhea)
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if origin == "human":
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await _post_ack_comment(pr["number"])
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discovered += 1
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if len(prs) < 50:
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break # Last page
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page += 1
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if discovered:
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logger.info("Discovered %d external PRs", discovered)
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return discovered
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def _detect_domain_from_branch(branch: str) -> str | None:
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"""Extract domain from branch name like 'rio/claims-futarchy' → 'internet-finance'.
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Agent-to-domain mapping for pipeline branches.
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"""
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agent_domain = {
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"rio": "internet-finance",
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"clay": "entertainment",
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"theseus": "ai-alignment",
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"vida": "health",
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"astra": "space-development",
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"leo": "grand-strategy",
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}
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prefix = branch.split("/")[0].lower() if "/" in branch else ""
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return agent_domain.get(prefix)
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def _detect_domain_from_files(pr: dict) -> str | None:
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"""Detect domain from PR's changed files for human-submitted PRs.
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Humans may not follow agent branch naming. Fall back to inspecting
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file paths. (Ganymede nit)
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"""
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# We'd need to fetch files from the API — do it lazily on first eval
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# For now, return None. Domain gets set during evaluation.
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return None
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async def _post_ack_comment(pr_number: int):
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"""Post acknowledgment comment on human-submitted PR. (Rhea)
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Contributor should feel acknowledged immediately, not wonder if
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their PR disappeared into a void.
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"""
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body = (
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"Thanks for the contribution! Your PR is queued for evaluation "
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"(priority: high). Expected review time: ~5 minutes.\n\n"
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"_This is an automated message from the Teleo pipeline._"
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)
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await _forgejo_api(
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"POST",
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f"/repos/{config.FORGEJO_OWNER}/{config.FORGEJO_REPO}/issues/{pr_number}/comments",
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{"body": body},
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)
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# --- Merge operations ---
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async def _claim_next_pr(conn, domain: str) -> dict | None:
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"""Claim the next approved PR for a domain via atomic UPDATE.
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Priority inheritance: COALESCE(p.priority, s.priority, 'medium')
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- Explicit PR priority (human PRs) > source priority (pipeline) > default medium
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- NULL priorities fall to ELSE 4, which ranks below explicit 'medium' (WHEN 2)
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- This is intentional: unclassified PRs don't jump ahead of triaged ones
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(Rhea: document the precedence for future maintainers)
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NOT EXISTS enforces domain serialization in SQL — defense-in-depth even if
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asyncio.Lock is bypassed. (Ganymede: approved)
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"""
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row = conn.execute(
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"""UPDATE prs SET status = 'merging', last_attempt = datetime('now')
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WHERE number = (
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SELECT p.number FROM prs p
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LEFT JOIN sources s ON p.source_path = s.path
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WHERE p.status = 'approved'
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AND p.domain = ?
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AND NOT EXISTS (
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SELECT 1 FROM prs p2
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WHERE p2.domain = p.domain
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AND p2.status = 'merging'
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)
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ORDER BY
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CASE COALESCE(p.priority, s.priority, 'medium')
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WHEN 'critical' THEN 0
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WHEN 'high' THEN 1
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WHEN 'medium' THEN 2
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WHEN 'low' THEN 3
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ELSE 4
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END,
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p.created_at ASC
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LIMIT 1
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)
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RETURNING number, source_path, branch, domain""",
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(domain,),
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).fetchone()
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return dict(row) if row else None
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async def _rebase_and_push(branch: str) -> tuple[bool, str]:
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"""Rebase branch onto main and force-push with pinned SHA.
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Always use --force-with-lease with pinned SHA for ALL branches —
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pipeline and human. No split logic. (Ganymede)
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"""
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worktree_path = f"/tmp/teleo-merge-{branch.replace('/', '-')}"
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# Create worktree for the branch
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rc, out = await _git("worktree", "add", worktree_path, branch)
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if rc != 0:
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return False, f"worktree add failed: {out}"
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try:
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# Capture expected SHA before rebase (Ganymede: pin for force-with-lease)
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rc, expected_sha = await _git("rev-parse", f"origin/{branch}", cwd=worktree_path)
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if rc != 0:
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return False, f"rev-parse failed: {expected_sha}"
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expected_sha = expected_sha.strip().split("\n")[0] # First line only
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# Fetch latest main
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rc, out = await _git("fetch", "origin", "main", cwd=worktree_path)
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if rc != 0:
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return False, f"fetch failed: {out}"
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# Check if rebase is needed
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rc, merge_base = await _git("merge-base", "origin/main", "HEAD", cwd=worktree_path)
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rc2, main_sha = await _git("rev-parse", "origin/main", cwd=worktree_path)
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if rc == 0 and rc2 == 0 and merge_base.strip() == main_sha.strip():
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# Already up to date, no rebase needed
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return True, "already up to date"
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# Rebase onto main
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rc, out = await _git("rebase", "origin/main", cwd=worktree_path, timeout=120)
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if rc != 0:
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# Rebase conflict
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await _git("rebase", "--abort", cwd=worktree_path)
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return False, f"rebase conflict: {out}"
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# Force-push with pinned SHA (Ganymede: defeats tracking-ref update race)
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rc, out = await _git(
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"push",
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f"--force-with-lease={branch}:{expected_sha}",
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"origin",
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f"HEAD:{branch}",
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cwd=worktree_path,
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timeout=30,
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)
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if rc != 0:
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return False, f"push rejected: {out}"
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return True, "rebased and pushed"
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finally:
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# Cleanup worktree
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await _git("worktree", "remove", "--force", worktree_path)
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async def _merge_pr(pr_number: int) -> tuple[bool, str]:
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"""Merge PR via Forgejo API. Preserves PR metadata and reviewer attribution."""
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result = await _forgejo_api(
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"POST",
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f"/repos/{config.FORGEJO_OWNER}/{config.FORGEJO_REPO}/pulls/{pr_number}/merge",
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{"Do": "merge", "merge_message_field": ""},
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)
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if result is None:
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return False, "Forgejo merge API failed"
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return True, "merged"
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async def _delete_remote_branch(branch: str):
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"""Delete remote branch immediately after merge. (Ganymede Q4: immediate, not batch)
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If DELETE fails, log and move on — stale branch is cosmetic,
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stale merge is operational.
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"""
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result = await _forgejo_api(
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"DELETE",
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f"/repos/{config.FORGEJO_OWNER}/{config.FORGEJO_REPO}/branches/{branch}",
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)
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if result is None:
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logger.warning("Failed to delete remote branch %s — cosmetic, continuing", branch)
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# --- Domain merge task ---
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async def _merge_domain_queue(conn, domain: str) -> tuple[int, int]:
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"""Process the merge queue for a single domain. Returns (succeeded, failed)."""
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succeeded = 0
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failed = 0
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while True:
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async with _domain_locks[domain]:
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pr = await _claim_next_pr(conn, domain)
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if not pr:
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break # No more approved PRs for this domain
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pr_num = pr["number"]
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branch = pr["branch"]
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logger.info("Merging PR #%d (%s) in domain %s", pr_num, branch, domain)
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try:
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# Rebase with timeout (Rhea: 5 min max, then force-reset to conflict)
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rebase_ok, rebase_msg = await asyncio.wait_for(
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_rebase_and_push(branch),
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timeout=MERGE_TIMEOUT_SECONDS,
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)
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except asyncio.TimeoutError:
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logger.error(
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"PR #%d merge timed out after %ds — resetting to conflict (Rhea)", pr_num, MERGE_TIMEOUT_SECONDS
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)
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conn.execute(
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"UPDATE prs SET status = 'conflict', last_error = ? WHERE number = ?",
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(f"merge timed out after {MERGE_TIMEOUT_SECONDS}s", pr_num),
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)
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db.audit(conn, "merge", "timeout", json.dumps({"pr": pr_num, "timeout_seconds": MERGE_TIMEOUT_SECONDS}))
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failed += 1
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continue
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if not rebase_ok:
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logger.warning("PR #%d rebase failed: %s", pr_num, rebase_msg)
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conn.execute(
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"UPDATE prs SET status = 'conflict', last_error = ? WHERE number = ?",
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(rebase_msg[:500], pr_num),
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)
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db.audit(conn, "merge", "rebase_failed", json.dumps({"pr": pr_num, "error": rebase_msg[:200]}))
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failed += 1
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continue
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# Merge via API
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merge_ok, merge_msg = await _merge_pr(pr_num)
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if not merge_ok:
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logger.error("PR #%d API merge failed: %s", pr_num, merge_msg)
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conn.execute(
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"UPDATE prs SET status = 'conflict', last_error = ? WHERE number = ?",
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(merge_msg[:500], pr_num),
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)
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db.audit(conn, "merge", "api_merge_failed", json.dumps({"pr": pr_num, "error": merge_msg[:200]}))
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failed += 1
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continue
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# Success — update status and cleanup
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conn.execute(
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"""UPDATE prs SET status = 'merged',
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merged_at = datetime('now'),
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last_error = NULL
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WHERE number = ?""",
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(pr_num,),
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)
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db.audit(conn, "merge", "merged", json.dumps({"pr": pr_num, "branch": branch}))
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logger.info("PR #%d merged successfully", pr_num)
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# Delete remote branch immediately (Ganymede Q4)
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await _delete_remote_branch(branch)
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# Prune local worktree metadata
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await _git("worktree", "prune")
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succeeded += 1
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return succeeded, failed
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# --- Main entry point ---
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async def merge_cycle(conn, max_workers=None) -> tuple[int, int]:
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"""Run one merge cycle across all domains.
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1. Discover external PRs (multiplayer v1)
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2. Find all domains with approved PRs
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3. Launch one async task per domain (cross-domain parallel, same-domain serial)
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"""
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# Step 1: Discover external PRs
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await discover_external_prs(conn)
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# Step 2: Find domains with approved work
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rows = conn.execute("SELECT DISTINCT domain FROM prs WHERE status = 'approved' AND domain IS NOT NULL").fetchall()
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domains = [r["domain"] for r in rows]
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# Also check for NULL-domain PRs (human PRs with undetected domain)
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null_domain = conn.execute("SELECT COUNT(*) as c FROM prs WHERE status = 'approved' AND domain IS NULL").fetchone()
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if null_domain and null_domain["c"] > 0:
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logger.warning("%d approved PRs have NULL domain — skipping until eval assigns domain", null_domain["c"])
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if not domains:
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return 0, 0
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# Step 3: Merge all domains concurrently
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tasks = [_merge_domain_queue(conn, domain) for domain in domains]
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results = await asyncio.gather(*tasks, return_exceptions=True)
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total_succeeded = 0
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total_failed = 0
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for i, result in enumerate(results):
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if isinstance(result, Exception):
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logger.exception("Domain %s merge failed with exception", domains[i])
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total_failed += 1
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else:
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s, f = result
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total_succeeded += s
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total_failed += f
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if total_succeeded or total_failed:
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logger.info(
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"Merge cycle: %d succeeded, %d failed across %d domains", total_succeeded, total_failed, len(domains)
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)
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return total_succeeded, total_failed
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