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The-Ouroboros/scripts/session_handover_check.py
agentson 85a59542f8
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process: harden implementation-start gate before coding
2026-02-27 23:21:54 +09:00

147 lines
4.0 KiB
Python
Executable File

#!/usr/bin/env python3
"""Session handover preflight gate.
This script enforces a minimal handover record per working branch so that
new sessions cannot start implementation without reading the required docs
and recording current intent.
"""
from __future__ import annotations
import argparse
import subprocess
import sys
from datetime import UTC, datetime
from pathlib import Path
REQUIRED_DOCS = (
Path("docs/workflow.md"),
Path("docs/commands.md"),
Path("docs/agent-constraints.md"),
)
HANDOVER_LOG = Path("workflow/session-handover.md")
def _run_git(*args: str) -> str:
try:
return (
subprocess.check_output(["git", *args], stderr=subprocess.DEVNULL)
.decode("utf-8")
.strip()
)
except Exception:
return ""
def _current_branch() -> str:
branch = _run_git("branch", "--show-current")
if branch:
return branch
return _run_git("rev-parse", "--abbrev-ref", "HEAD")
def _latest_entry(text: str) -> str:
chunks = text.split("\n### ")
if not chunks:
return ""
if chunks[0].startswith("### "):
chunks[0] = chunks[0][4:]
latest = chunks[-1].strip()
if not latest:
return ""
if not latest.startswith("### "):
latest = f"### {latest}"
return latest
def _check_required_files(errors: list[str]) -> None:
for path in REQUIRED_DOCS:
if not path.exists():
errors.append(f"missing required document: {path}")
if not HANDOVER_LOG.exists():
errors.append(f"missing handover log: {HANDOVER_LOG}")
def _check_handover_entry(
*,
branch: str,
strict: bool,
errors: list[str],
) -> None:
if not HANDOVER_LOG.exists():
return
text = HANDOVER_LOG.read_text(encoding="utf-8")
latest = _latest_entry(text)
if not latest:
errors.append("handover log has no session entry")
return
required_tokens = (
"- branch:",
"- docs_checked:",
"- open_issues_reviewed:",
"- next_ticket:",
"- process_gate_checked:",
)
for token in required_tokens:
if token not in latest:
errors.append(f"latest handover entry missing token: {token}")
if strict:
today_utc = datetime.now(UTC).date().isoformat()
if today_utc not in latest:
errors.append(
f"latest handover entry must contain today's UTC date ({today_utc})"
)
branch_token = f"- branch: {branch}"
if branch_token not in latest:
errors.append(
"latest handover entry must target current branch "
f"({branch_token})"
)
if "- next_ticket: #TBD" in latest:
errors.append("latest handover entry must not use placeholder next_ticket (#TBD)")
if "merged_to_feature_branch=no" in latest:
errors.append(
"process gate indicates not merged; implementation must stay blocked "
"(merged_to_feature_branch=no)"
)
def main() -> int:
parser = argparse.ArgumentParser(
description="Validate session handover gate requirements."
)
parser.add_argument(
"--strict",
action="store_true",
help="Enforce today-date and current-branch match on latest handover entry.",
)
args = parser.parse_args()
errors: list[str] = []
_check_required_files(errors)
branch = _current_branch()
if not branch:
errors.append("cannot resolve current git branch")
elif branch in {"main", "master"}:
errors.append(f"working branch must not be {branch}")
_check_handover_entry(branch=branch, strict=args.strict, errors=errors)
if errors:
print("[FAIL] session handover check failed")
for err in errors:
print(f"- {err}")
return 1
print("[OK] session handover check passed")
print(f"[OK] branch={branch}")
print(f"[OK] handover_log={HANDOVER_LOG}")
return 0
if __name__ == "__main__":
sys.exit(main())