feat: Add PR triage automation script (#659)

Categorize, deduplicate, and report on open PRs.
Markdown + JSON output. Auto-merge safe PRs.
Closes #659.

scripts/pr_triage.py

@@ -0,0 +1,271 @@
+#!/usr/bin/env python3
+"""
+PR Triage Automation — Categorize, deduplicate, and report on open PRs.
+
+Usage:
+    python scripts/pr_triage.py                    # Generate report
+    python scripts/pr_triage.py --json             # JSON output
+    python scripts/pr_triage.py --auto-merge       # Auto-merge safe PRs
+    python scripts/pr_triage.py --repo timmy-home  # Single repo
+"""
+
+import json
+import os
+import re
+import sys
+from collections import Counter
+from datetime import datetime, timezone
+from pathlib import Path
+from typing import Any, Optional
+
+try:
+    import urllib.request
+except ImportError:
+    print("Error: urllib not available")
+    sys.exit(1)
+
+# ---------------------------------------------------------------------------
+# Config
+# ---------------------------------------------------------------------------
+
+GITEA_BASE = os.environ.get("GITEA_API_BASE", "https://forge.alexanderwhitestone.com/api/v1")
+TOKEN_PATH = os.environ.get("GITEA_TOKEN_PATH", str(Path.home() / ".config/gitea/token"))
+ORG = "Timmy_Foundation"
+
+DEFAULT_REPOS = [
+    "timmy-home",
+    "hermes-agent",
+    "timmy-config",
+    "the-nexus",
+    "the-door",
+    "burn-fleet",
+    "second-son-of-timmy",
+]
+
+# ---------------------------------------------------------------------------
+# Categories
+# ---------------------------------------------------------------------------
+
+CATEGORY_RULES = {
+    "training-data": [
+        r"training[- ]?data", r"scene[- ]?description", r"dpo", r"training",
+        r"batch[- ]?\d+", r"training[- ]?pipeline", r"jsonl",
+    ],
+    "bug-fix": [
+        r"^fix[\(:]", r"\[BUG\]", r"\[FIX\]", r"bug fix", r"fixes #\d+",
+        r"closes #\d+", r"broken", r"crash", r"regression",
+    ],
+    "feature": [
+        r"^feat[\(:]", r"\[FEAT\]", r"\[FEATURE\]", r"new feature",
+        r"add .+ support", r"implement",
+    ],
+    "docs": [
+        r"^docs[\(:]", r"documentation", r"readme", r"genome",
+    ],
+    "security": [
+        r"\[SECURITY\]", r"\[VITALIK\]", r"shield", r"injection",
+        r"vulnerability", r"hardening",
+    ],
+    "infra": [
+        r"\[INFRA\]", r"deploy", r"ansible", r"docker", r"ci[/ ]cd",
+        r"cron", r"watchdog", r"systemd",
+    ],
+    "research": [
+        r"research", r"benchmark", r"evaluation", r"analysis",
+        r"\[BIG-BRAIN\]", r"investigate",
+    ],
+    "other": [],  # fallback
+}
+
+
+def categorize_pr(title: str, body: str) -> str:
+    """Categorize a PR by its title and body."""
+    text = f"{title} {body}".lower()
+    for category, patterns in CATEGORY_RULES.items():
+        if category == "other":
+            continue
+        for pattern in patterns:
+            if re.search(pattern, text, re.IGNORECASE):
+                return category
+    return "other"
+
+
+# ---------------------------------------------------------------------------
+# Gitea API
+# ---------------------------------------------------------------------------
+
+def _load_token() -> str:
+    try:
+        return open(TOKEN_PATH).read().strip()
+    except FileNotFoundError:
+        print(f"Error: Token not found at {TOKEN_PATH}")
+        sys.exit(1)
+
+
+def api_get(path: str, token: str) -> Any:
+    req = urllib.request.Request(f"{GITEA_BASE}{path}")
+    req.add_header("Authorization", f"token {token}")
+    resp = urllib.request.urlopen(req, timeout=30)
+    return json.loads(resp.read())
+
+
+def get_open_prs(repo: str, token: str) -> list[dict]:
+    """Fetch all open PRs for a repo."""
+    prs = []
+    page = 1
+    while True:
+        try:
+            batch = api_get(f"/repos/{ORG}/{repo}/pulls?state=open&limit=50&page={page}", token)
+            if not batch:
+                break
+            prs.extend(batch)
+            if len(batch) < 50:
+                break
+            page += 1
+        except Exception:
+            break
+    return prs
+
+
+def get_issue_state(repo: str, issue_num: int, token: str) -> Optional[str]:
+    """Check if a referenced issue is still open."""
+    try:
+        issue = api_get(f"/repos/{ORG}/{repo}/issues/{issue_num}", token)
+        return issue.get("state", "unknown")
+    except Exception:
+        return None
+
+
+def find_referenced_issues(pr_body: str, pr_title: str) -> list[int]:
+    """Extract issue numbers referenced in PR body/title."""
+    text = f"{pr_title} {pr_body}"
+    return [int(m) for m in re.findall(r'#(\d+)', text)]
+
+
+def find_duplicates(prs: list[dict]) -> list[tuple[dict, dict]]:
+    """Find PRs that reference the same issue."""
+    issue_to_prs: dict[int, list[dict]] = {}
+    for pr in prs:
+        refs = find_referenced_issues(pr.get("body", ""), pr.get("title", ""))
+        for issue_num in refs:
+            issue_to_prs.setdefault(issue_num, []).append(pr)
+
+    duplicates = []
+    for issue_num, pr_list in issue_to_prs.items():
+        if len(pr_list) > 1:
+            # Pair up duplicates
+            for i in range(len(pr_list)):
+                for j in range(i + 1, len(pr_list)):
+                    duplicates.append((pr_list[i], pr_list[j]))
+
+    return duplicates
+
+
+# ---------------------------------------------------------------------------
+# Triage
+# ---------------------------------------------------------------------------
+
+def triage_repo(repo: str, token: str) -> dict:
+    """Triage all open PRs for a repo."""
+    prs = get_open_prs(repo, token)
+
+    categorized: dict[str, list[dict]] = {}
+    stale_issues = []
+    duplicates = find_duplicates(prs)
+
+    for pr in prs:
+        category = categorize_pr(pr.get("title", ""), pr.get("body", ""))
+        categorized.setdefault(category, []).append(pr)
+
+        # Check referenced issues
+        refs = find_referenced_issues(pr.get("body", ""), pr.get("title", ""))
+        for issue_num in refs:
+            state = get_issue_state(repo, issue_num, token)
+            if state == "closed":
+                stale_issues.append({"pr": pr["number"], "issue": issue_num, "repo": repo})
+
+    return {
+        "repo": repo,
+        "total_prs": len(prs),
+        "by_category": {k: len(v) for k, v in categorized.items()},
+        "categorized": categorized,
+        "duplicates": [(a["number"], b["number"]) for a, b in duplicates],
+        "stale_issues": stale_issues,
+    }
+
+
+def triage_all(repos: list[str], token: str) -> list[dict]:
+    """Triage all repos."""
+    results = []
+    for repo in repos:
+        print(f"  Triaging {repo}...", file=sys.stderr)
+        try:
+            result = triage_repo(repo, token)
+            results.append(result)
+        except Exception as e:
+            print(f"  Error triaging {repo}: {e}", file=sys.stderr)
+            results.append({"repo": repo, "error": str(e)})
+    return results
+
+
+# ---------------------------------------------------------------------------
+# Report
+# ---------------------------------------------------------------------------
+
+def generate_markdown_report(results: list[dict]) -> str:
+    """Generate a markdown triage report."""
+    total_prs = sum(r.get("total_prs", 0) for r in results)
+    all_categories: Counter = Counter()
+    all_duplicates = []
+    all_stale = []
+
+    for r in results:
+        for cat, count in r.get("by_category", {}).items():
+            all_categories[cat] += count
+        all_duplicates.extend(r.get("duplicates", []))
+        all_stale.extend(r.get("stale_issues", []))
+
+    lines = [
+        "# PR Triage Report",
+        "",
+        f"Generated: {datetime.now(timezone.utc).strftime('%Y-%m-%d %H:%M UTC')}",
+        "",
+        "## Summary",
+        "",
+        f"| Metric | Count |",
+        f"|--------|-------|",
+        f"| Total open PRs | {total_prs} |",
+        f"| Repos scanned | {len(results)} |",
+        f"| Duplicates found | {len(all_duplicates)} |",
+        f"| Stale (issue closed) | {len(all_stale)} |",
+        "",
+        "## By Category",
+        "",
+        "| Category | Count |",
+        "|----------|-------|",
+    ]
+
+    for cat, count in all_categories.most_common():
+        lines.append(f"| {cat} | {count} |")
+
+    if all_duplicates:
+        lines.extend(["", "## Duplicates (same issue referenced)", ""])
+        for a, b in all_duplicates:
+            lines.append(f"- PR #{a} and PR #{b}")
+
+    if all_stale:
+        lines.extend(["", "## Stale PRs (referenced issue is closed)", ""])
+        for s in all_stale:
+            lines.append(f"- {s['repo']} PR #{s['pr']} → issue #{s['issue']} (closed)")
+
+    # Per-repo detail
+    for r in results:
+        if r.get("error"):
+            lines.extend(["", f"## {r['repo']} — ERROR", "", f"```{r['error']}```"])
+            continue
+
+        lines.extend([f"", f"## {r['repo']} ({r.get('total_prs', 0)} open PRs)", ""])
+        for cat, prs in r.get("categorized", {}).items():
+            if not prs:
+                continue
+            lines.append(f"