133 lines
5.4 KiB
Python
133 lines
5.4 KiB
Python
"""
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Dependency drift check plan snapshot.
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Loads the latest committed, read-only dependency drift and external source
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watch design. The plan never activates schedules, writes workflows, queries
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external sources, installs SDKs, calls paid APIs, installs or upgrades
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packages, writes lockfiles, builds or pulls images, pushes registries, creates
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shadow/canary traffic, or changes production routing.
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"""
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from __future__ import annotations
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import json
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from pathlib import Path
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from typing import Any
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from src.services.snapshot_paths import default_evaluations_dir
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_DEFAULT_EVALUATIONS_DIR = default_evaluations_dir(Path(__file__))
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_SNAPSHOT_PATTERN = "dependency_drift_check_plan_*.json"
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_SCHEMA_VERSION = "dependency_drift_check_plan_v1"
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def load_latest_dependency_drift_check_plan(
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evaluations_dir: Path | None = None,
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) -> dict[str, Any]:
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"""Load the newest committed dependency drift check plan snapshot."""
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directory = evaluations_dir or _DEFAULT_EVALUATIONS_DIR
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candidates = sorted(directory.glob(_SNAPSHOT_PATTERN))
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if not candidates:
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raise FileNotFoundError(f"no dependency drift check plan snapshots found in {directory}")
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latest = candidates[-1]
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with latest.open(encoding="utf-8") as handle:
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payload = json.load(handle)
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if not isinstance(payload, dict):
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raise ValueError(f"{latest}: expected JSON object")
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_require_schema(payload, _SCHEMA_VERSION, str(latest))
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_require_read_only_boundaries(payload, str(latest))
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_require_operation_boundaries(payload, str(latest))
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_require_rollup_consistency(payload, str(latest))
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return payload
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def _require_schema(payload: dict[str, Any], expected: str, label: str) -> None:
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actual = payload.get("schema_version")
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if actual != expected:
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raise ValueError(f"{label}: expected schema_version={expected}, got {actual!r}")
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def _require_read_only_boundaries(payload: dict[str, Any], label: str) -> None:
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program_status = payload.get("program_status") or {}
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if program_status.get("read_only_mode") is not True:
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raise ValueError(f"{label}: program_status.read_only_mode must be true")
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boundaries = payload.get("approval_boundaries") or {}
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blocked_flags = {
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"sdk_installation_allowed",
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"paid_api_call_allowed",
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"shadow_or_canary_allowed",
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"production_routing_allowed",
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"destructive_operation_allowed",
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}
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allowed = sorted(flag for flag in blocked_flags if boundaries.get(flag) is not False)
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if allowed:
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raise ValueError(f"{label}: approval boundaries must remain false: {allowed}")
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def _require_operation_boundaries(payload: dict[str, Any], label: str) -> None:
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boundaries = payload.get("operation_boundaries") or {}
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if boundaries.get("read_only_plan_allowed") is not True:
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raise ValueError(f"{label}: read_only_plan_allowed must be true")
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blocked_flags = {
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"schedule_activation_allowed",
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"workflow_write_allowed",
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"external_cve_lookup_allowed",
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"external_license_lookup_allowed",
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"registry_lookup_allowed",
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"agent_market_external_lookup_allowed",
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"sdk_installation_allowed",
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"paid_api_call_allowed",
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"package_installation_allowed",
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"package_upgrade_allowed",
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"lockfile_write_allowed",
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"docker_build_allowed",
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"image_pull_allowed",
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"image_rebuild_allowed",
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"registry_push_allowed",
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"shadow_or_canary_allowed",
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"production_routing_allowed",
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}
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allowed = sorted(flag for flag in blocked_flags if boundaries.get(flag) is not False)
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if allowed:
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raise ValueError(f"{label}: operation boundaries must remain false: {allowed}")
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def _require_rollup_consistency(payload: dict[str, Any], label: str) -> None:
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cadence_items = ((payload.get("cadence_policy") or {}).get("items")) or []
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local_checks = payload.get("local_check_plan") or []
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external_sources = payload.get("external_source_candidates") or []
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rollups = payload.get("rollups") or {}
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if rollups.get("total_cadence_items") != len(cadence_items):
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raise ValueError(f"{label}: rollups.total_cadence_items must match cadence items")
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if rollups.get("total_local_checks") != len(local_checks):
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raise ValueError(f"{label}: rollups.total_local_checks must match local_check_plan")
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if rollups.get("total_external_source_candidates") != len(external_sources):
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raise ValueError(
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f"{label}: rollups.total_external_source_candidates must match external_source_candidates"
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)
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local_ids = {check.get("check_id") for check in local_checks if check.get("status") == "read_only_design"}
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if set(rollups.get("read_only_local_check_ids") or []) != local_ids:
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raise ValueError(f"{label}: rollups.read_only_local_check_ids must match local checks")
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source_ids = {
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source.get("source_id")
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for source in external_sources
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if source.get("approval_status") in {"approval_required", "blocked_until_approval"}
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}
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if set(rollups.get("approval_required_source_ids") or []) != source_ids:
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raise ValueError(f"{label}: rollups.approval_required_source_ids must match external sources")
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cadence_ids = {
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item.get("cadence_id")
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for item in cadence_items
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if item.get("activation_status") in {"design_only", "blocked_until_approval"}
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}
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if set(rollups.get("design_only_cadence_ids") or []) != cadence_ids:
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raise ValueError(f"{label}: rollups.design_only_cadence_ids must match cadence items")
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