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coyote/assets/agents/code-reviewer/scripts/facts.py
T

284 lines
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Python

#!/usr/bin/env python3
"""Deterministic review facts for the code-reviewer graph.
Resolves the diff, the changed-file list, the quality bar (caller-passed →
plan frontmatter → detected default), the conventions pointer, review-miss
ledger matches, the repo-history sweep (fix/revert clusters, bounded gh
PR-comment pull), and the deterministic verdict-trigger signals. Pure
git/gh/filesystem — no LLM. Failures degrade into `facts_note`; they never
sink the review.
"""
import glob
import json
import os
import re
import subprocess
def load_state():
if path := os.environ.get("GRAPH_STATE_FILE"):
with open(path) as f:
return json.load(f)
return json.loads(os.environ.get("GRAPH_STATE", "{}"))
state = load_state()
proj = os.path.expanduser(
(state.get("project_dir_in") or "").strip() or state.get("project_dir") or "."
)
spec = (state.get("diff_spec") or "auto").strip()
notes = []
out = {"project_dir": proj}
def git(*args, timeout=60):
r = subprocess.run(["git", "-C", proj, *args], capture_output=True, text=True, timeout=timeout)
if r.returncode != 0:
raise RuntimeError((r.stderr or r.stdout).strip()[:300])
return r.stdout
def scrubbed_env():
env = dict(os.environ)
env.pop("CLICOLOR_FORCE", None)
env.pop("FORCE_COLOR", None)
env["GH_NO_UPDATE_NOTIFIER"] = "1"
env["NO_COLOR"] = "1"
return env
# --- diff resolution (get_diff semantics) -----------------------------------
resolved = spec
files = []
try:
if spec in ("auto", ""):
names = git("diff", "--cached", "--numstat")
resolved = "staged"
if not names.strip():
names = git("diff", "--numstat")
resolved = "worktree"
if not names.strip():
names = git("diff", "HEAD~1", "--numstat")
resolved = "HEAD~1"
elif spec == "staged":
names = git("diff", "--cached", "--numstat")
elif spec == "worktree":
names = git("diff", "HEAD", "--numstat")
else:
names = git("diff", spec, "--numstat")
for line in names.splitlines():
parts = line.split("\t")
if len(parts) == 3:
added, deleted, path = parts
if added == "-" and deleted == "-":
notes.append(f"binary file skipped: {path}")
continue
files.append(path.strip())
except Exception as e: # noqa: BLE001
notes.append(f"diff resolution failed for spec {spec!r}: {e}")
out["resolved_diff_spec"] = resolved
out["changed_files"] = files[:300]
out["file_count"] = len(files)
def diff_text():
try:
if resolved == "staged":
return git("diff", "--cached", timeout=90)
if resolved == "worktree":
return git("diff", "HEAD", timeout=90) if spec == "worktree" else git("diff", timeout=90)
if resolved == "HEAD~1":
return git("diff", "HEAD~1", timeout=90)
return git("diff", resolved, timeout=90)
except Exception: # noqa: BLE001
return ""
dtext = diff_text()
added_lines = "\n".join(
l for l in dtext.splitlines() if l.startswith("+") and not l.startswith("+++")
)
# --- quality bar resolution --------------------------------------------------
rigor_in = (state.get("rigor_in") or state.get("rigor") or "").strip()
surfaces_in = (state.get("surfaces_in") or state.get("surfaces") or "").strip()
resolved_rigor, resolved_surfaces, provenance = "production", "", "detected-default"
if rigor_in or surfaces_in:
resolved_rigor = rigor_in or "production"
resolved_surfaces = surfaces_in
provenance = "passed"
else:
for plan in sorted(glob.glob(os.path.join(proj, "plans", "PLAN-*.md"))):
try:
with open(plan) as f:
head = f.read(4000)
m = re.match(r"\A---\n(.*?)\n---", head, re.S)
if m and re.search(r"^status:\s*active\s*$", m.group(1), re.M):
rig = re.search(r"^rigor:\s*(\S+)", m.group(1), re.M)
sur = re.search(r"^surfaces:\s*(.+)$", m.group(1), re.M)
if rig:
resolved_rigor = rig.group(1).strip()
if sur:
resolved_surfaces = sur.group(1).strip("[] \n")
provenance = "plan"
break
except OSError:
continue
SURFACE_PATTERNS = [
("db-migration", r"migrations?/|\.sql$|schema\.(rb|prisma|sql)"),
("iac", r"\.tf$|helm|charts?/|Dockerfile|docker-compose|k8s/|manifests?/"),
("ci-cd", r"\.github/workflows/|\.gitlab-ci|Jenkinsfile|\.circleci/"),
("worker", r"workers?/|jobs?/|consumers?/|cron|celery|sidekiq|river"),
("rest-api", r"routes?|handlers?|controllers?|endpoints?|\bapi\b|\.proto$|openapi|swagger|graphql|resolvers?"),
("cli", r"\bcmd/|\bcli\b"),
("library", r"go\.mod$|package\.json$|Cargo\.toml$|pyproject\.toml$|setup\.py$|__init__\.py$"),
]
if provenance == "detected-default" and files:
detected = []
for surface, pat in SURFACE_PATTERNS:
if any(re.search(pat, f, re.I) for f in files):
detected.append(surface)
resolved_surfaces = ", ".join(detected)
out["resolved_rigor"] = resolved_rigor
out["resolved_surfaces"] = resolved_surfaces
out["bar_provenance"] = provenance
# --- conventions pointer ------------------------------------------------------
conv = []
for pat in ("CLAUDE.md", "COYOTE.md", "CONTRIBUTING.md", ".golangci*", ".eslintrc*",
"rustfmt.toml", ".rubocop.yml", "ruff.toml", ".editorconfig", "Makefile"):
conv.extend(sorted(glob.glob(os.path.join(proj, pat)))[:2])
out["conventions"] = ", ".join(os.path.relpath(p, proj) for p in conv) or "none found"
# --- review-miss ledger -------------------------------------------------------
ledger_text = ""
for cand in (
os.path.join(os.path.expanduser("~"), ".config", "coyote", "share", "review-misses.md"),
os.path.join(os.path.expanduser("~"), ".config", "coyote", "review-misses.md"),
):
if os.path.isfile(cand):
try:
with open(cand) as f:
ledger_text = f.read()
except OSError:
pass
break
matches = []
if ledger_text:
try:
repo_name = os.path.basename(git("rev-parse", "--show-toplevel").strip())
except Exception: # noqa: BLE001
repo_name = os.path.basename(os.path.abspath(proj))
keywords = {repo_name.lower()}
keywords.update(s.strip().lower() for s in resolved_surfaces.split(",") if s.strip())
for f in files:
keywords.update(p.lower() for p in re.split(r"[/_.-]", f) if len(p) >= 4)
entries = re.split(r"(?=^## MISS-)", ledger_text, flags=re.M)
for entry in entries:
if not entry.startswith("## MISS-"):
continue
body = entry.lower()
if any(k in body for k in keywords):
lines = entry.strip().splitlines()
matches.append("\n".join(lines[:8]))
if len(matches) >= 8:
break
out["ledger_matches"] = "\n\n".join(matches) if matches else "(no matching ledger entries)"
# --- repo-history sweep -------------------------------------------------------
history = []
fragile = []
try:
if files:
log = git("log", "--oneline", "-15", "--", *files[:100])
history.append(log.strip()[:2000])
per_file = {}
for f in files[:50]:
try:
fl = git("log", "--oneline", "-10", "--", f)
except Exception: # noqa: BLE001
continue
hits = [l for l in fl.splitlines() if re.search(r"\b(fix|revert|hotfix)\b", l, re.I)]
if len(hits) >= 2:
fragile.append(f)
per_file[f] = hits[:2]
for f, hits in per_file.items():
history.append(f"FRAGILE: {f} — {len(hits)}+ fix/revert commits recently — raise scrutiny")
except Exception as e: # noqa: BLE001
notes.append(f"history sweep failed: {e}")
# gh one-level-deeper: PR review comments for fragile files (bounded, silent skip)
try:
if fragile:
remote = git("remote", "get-url", "origin").strip()
m = re.search(r"github\.com[:/]([^/]+/[^/.]+)", remote)
if m:
repo_slug = m.group(1)
env = scrubbed_env()
shas = []
for f in fragile[:2]:
lg = git("log", "--format=%H", "-2", "--", f)
shas.extend(lg.split())
pr_nums = []
for sha in shas[:3]:
r = subprocess.run(
["gh", "api", f"repos/{repo_slug}/commits/{sha}/pulls", "--jq", ".[].number"],
capture_output=True, text=True, timeout=30, env=env,
)
if r.returncode == 0:
pr_nums.extend(n for n in r.stdout.split() if n.isdigit())
seen = []
for n in pr_nums:
if n not in seen:
seen.append(n)
comments = []
for n in seen[:3]:
r = subprocess.run(
["gh", "api", f"repos/{repo_slug}/pulls/{n}/comments",
"--jq", r'.[] | "\(.path): \(.body)"'],
capture_output=True, text=True, timeout=30, env=env,
)
if r.returncode == 0:
for line in r.stdout.splitlines():
path = line.split(":", 1)[0]
if any(path in f or f in path for f in files):
comments.append(line[:200])
if len(comments) >= 6:
break
if comments:
history.append("Prior PR review comments on fragile paths:\n" + "\n".join(comments[:6]))
except Exception: # noqa: BLE001
pass # offline / not GitHub / no gh — silent by design
out["history_notes"] = "\n".join(h for h in history if h) or "(no notable history)"
# --- deterministic verdict-trigger signals -----------------------------------
def any_path(pattern):
return any(re.search(pattern, f, re.I) for f in files)
migration_files = [f for f in files if re.search(r"migrations?/|\.sql$", f, re.I)]
mig_added = "\n".join(
l for l in dtext.splitlines()
if l.startswith("+") and not l.startswith("+++")
) if migration_files else ""
out["destructive_migration"] = bool(
migration_files
and re.search(r"(?i)drop\s+(table|column)|rename\s+(table|column|to)|alter\s+\S+\s+drop", mig_added)
)
out["touches_auth"] = bool(
any_path(r"auth(?!or)|login|logout|token|session|permission|rbac|\bacl\b|credential")
or re.search(r"auth(?!or)|password|jwt|session|credential", added_lines, re.I)
)
out["consumer_surface"] = any_path(
r"routes?|handlers?|\bapi\b|endpoints?|\bcmd/|\bcli\b|\.proto$|openapi|swagger|controllers?|graphql"
)
if notes:
out["facts_note"] = "; ".join(notes)[:800]
print(json.dumps(out))