state_migration.py DOX

Purpose

• Own the state_migration.py helper module.
• This module moves retired state tree paths to current runtime locations.
• Keep this file-level DOX profile synchronized with state_migration.py because this directory is intentionally flat.

Ownership

• state_migration.py owns the runtime implementation.
• state_migration.py.dox.md owns durable notes about responsibilities, contracts, side effects, and verification for that implementation.
• Top-level functions:
• migrate_retired_state_tree(source: Path, destination: Path, owner: str, migrated: list[str], warnings: list[str], errors: list[str]) -> None: Move retired plugin state into its plugin-owned state directory.
• _move_path(source: Path, target: Path, migrated: list[str]) -> None
• _next_conflict_path(path: Path) -> Path
• _remove_empty_dir(path: Path, owner: str, warnings: list[str]) -> None
• _same_path(left: Path, right: Path) -> bool

Runtime Contracts

• Helper modules own reusable framework APIs and must preserve public callers unless all callers, tests, and docs are updated together.
• Update this file whenever public functions, classes, persistence behavior, path/security assumptions, side effects, or cross-module contracts change.
• Observed side-effect areas: filesystem reads, filesystem writes, plugin state, settings/state persistence.
• Imported dependency areas include: __future__, pathlib, shutil.

Key Concepts

• Important called helpers/classes observed in the source: _same_path, final_target.parent.mkdir, shutil.move, path.with_name, _move_path, source.is_dir, target.is_dir, source.rmdir, target.exists, target.is_symlink, _next_conflict_path, candidate.exists, candidate.is_symlink, path.rmdir, source.exists, source.is_symlink, destination.mkdir, _remove_empty_dir, source.iterdir, left.resolve.
• Keep request/response, tool, or helper semantics documented here at the same time as source changes.

Work Guidance

• Preserve public helper APIs used by core code and plugins unless every caller is updated.
• Keep path, auth, secret, persistence, network, and subprocess behavior explicit and bounded.
• Prefer adding cohesive helper functions here only when behavior is reused across modules.

Verification

• Run targeted tests for changed helper behavior; run security regressions for auth, filesystem, WebSocket, tunnel, upload, or secret-handling helpers.
• No direct test reference was found by name search; choose the nearest behavioral test or perform a focused smoke check.

Child DOX Index

No child DOX files.