File size: 6,387 Bytes
b6beed8 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 | #!/usr/bin/env python3
"""Enforce build-before-query freezing for a WorkSurface-Build unit."""
from __future__ import annotations
import argparse
import hashlib
import json
import shutil
from pathlib import Path
from typing import Any
SENTINEL = ".worksurface_build_run"
def write_json(path: Path, value: Any) -> None:
path.parent.mkdir(parents=True, exist_ok=True)
path.write_text(json.dumps(value, ensure_ascii=False, indent=2) + "\n", encoding="utf-8")
def sha256_file(path: Path) -> str:
digest = hashlib.sha256()
with path.open("rb") as handle:
for chunk in iter(lambda: handle.read(1024 * 1024), b""):
digest.update(chunk)
return digest.hexdigest()
def canonical_json(value: Any) -> bytes:
return json.dumps(value, ensure_ascii=False, sort_keys=True, separators=(",", ":")).encode("utf-8")
def artifact_hashes(artifacts: Path) -> dict[str, str]:
return {
str(path.relative_to(artifacts)): "sha256:" + sha256_file(path)
for path in sorted(artifacts.rglob("*")) if path.is_file()
}
def load_state(run: Path) -> dict[str, Any]:
if not (run / SENTINEL).exists():
raise RuntimeError(f"not a WorkSurface-Build run: {run}")
return json.loads((run / "state.json").read_text(encoding="utf-8"))
def start(release: Path, unit_type: str, unit_id: str, run: Path) -> None:
if run.exists():
raise RuntimeError(f"run directory already exists: {run}")
index_name = "task_units.jsonl" if unit_type == "task" else "persona_units.jsonl"
rows = [json.loads(line) for line in (release / "public" / index_name).read_text().splitlines() if line]
row = next((item for item in rows if item["unit_id"] == unit_id), None)
if row is None:
raise KeyError(f"unknown unit: {unit_id}")
unit_path = release / row["unit_spec"]
unit = json.loads(unit_path.read_text(encoding="utf-8"))
run.mkdir(parents=True)
(run / SENTINEL).write_text("WorkSurface-Build run\n", encoding="utf-8")
(run / "artifacts").mkdir()
shutil.copy2(unit_path, run / "builder_input.json")
write_json(run / "state.json", {
"status": "BUILDING",
"release": str(release.resolve()),
"unit_type": unit_type,
"unit_id": unit_id,
"workspace": str((unit_path.parent / unit["workspace"]).resolve()),
"hidden_task_commitment": unit["hidden_task_commitment"],
})
print(json.dumps({"run": str(run.resolve()), "workspace": str((unit_path.parent / unit["workspace"]).resolve())}, indent=2))
def freeze(run: Path, build_cost: dict[str, Any]) -> None:
state = load_state(run)
if state["status"] != "BUILDING":
raise RuntimeError(f"cannot freeze run in state {state['status']}")
hashes = artifact_hashes(run / "artifacts")
if not hashes:
raise RuntimeError("Builder produced no artifact files")
manifest = {
"unit_id": state["unit_id"],
"artifact_hashes": hashes,
"build_cost": build_cost,
}
write_json(run / "artifact_manifest.json", manifest)
lock = "sha256:" + hashlib.sha256(canonical_json(manifest)).hexdigest()
(run / "freeze.lock").write_text(lock + "\n", encoding="utf-8")
state["status"] = "FROZEN"
state["freeze_lock"] = lock
write_json(run / "state.json", state)
print(json.dumps({"status": "FROZEN", "artifacts": len(hashes), "freeze_lock": lock}, indent=2))
def verify(run: Path) -> dict[str, Any]:
state = load_state(run)
if state["status"] not in {"FROZEN", "SERVING"}:
raise RuntimeError(f"run is not frozen: {state['status']}")
manifest = json.loads((run / "artifact_manifest.json").read_text(encoding="utf-8"))
current = artifact_hashes(run / "artifacts")
ok = current == manifest["artifact_hashes"]
result = {"ok": ok, "expected_files": len(manifest["artifact_hashes"]), "current_files": len(current)}
if not ok:
result["changed_paths"] = sorted(set(current) ^ set(manifest["artifact_hashes"]))
return result
def release_questions(run: Path) -> None:
state = load_state(run)
result = verify(run)
if not result["ok"]:
raise RuntimeError("frozen artifacts changed before question release")
release = Path(state["release"])
if state["unit_type"] == "task":
source = release / "private" / "serve_questions" / f"{state['unit_id']}.jsonl"
else:
source = release / "private" / "persona_serve_questions" / f"{state['unit_id']}.jsonl"
shutil.copy2(source, run / "serve_questions.jsonl")
state["status"] = "SERVING"
write_json(run / "state.json", state)
print(json.dumps({"status": "SERVING", "questions": len(source.read_text().splitlines())}, indent=2))
def parse_cost(value: str) -> dict[str, Any]:
path = Path(value)
if path.exists():
return json.loads(path.read_text(encoding="utf-8"))
parsed = json.loads(value)
if not isinstance(parsed, dict):
raise ValueError("build cost must be a JSON object")
return parsed
def main() -> None:
parser = argparse.ArgumentParser(description=__doc__)
commands = parser.add_subparsers(dest="command", required=True)
start_p = commands.add_parser("start")
start_p.add_argument("--release", type=Path, required=True)
start_p.add_argument("--unit-type", choices=("task", "persona"), required=True)
start_p.add_argument("--unit-id", required=True)
start_p.add_argument("--run", type=Path, required=True)
freeze_p = commands.add_parser("freeze")
freeze_p.add_argument("--run", type=Path, required=True)
freeze_p.add_argument("--build-cost", required=True, help="JSON object or JSON file")
release_p = commands.add_parser("release-questions")
release_p.add_argument("--run", type=Path, required=True)
verify_p = commands.add_parser("verify")
verify_p.add_argument("--run", type=Path, required=True)
args = parser.parse_args()
if args.command == "start":
start(args.release, args.unit_type, args.unit_id, args.run)
elif args.command == "freeze":
freeze(args.run, parse_cost(args.build_cost))
elif args.command == "release-questions":
release_questions(args.run)
else:
result = verify(args.run)
print(json.dumps(result, indent=2))
if not result["ok"]:
raise SystemExit(1)
if __name__ == "__main__":
main()
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