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Time Travel keeps a hidden git repository per workspace under /a0/usr/.time_travel/workspaces/<id>/repo.git and snapshots on every file change, but ships no retention: nothing deletes a shadow repository when its chat or project is removed (chat_remove never touches .time_travel), there is no delete/prune endpoint in the API or web UI, and a workspace whose 'git add' ever exceeds GIT_TIMEOUT_SECONDS strands repo.git/index.lock, failing every later snapshot with 'index.lock: File exists'. Observed on a live instance: 518 shadow repositories / 12 GB, most belonging to long-deleted chats, plus a permanently wedged workspace. This adds a throttled retention sweep driven from job_loop: - Orphans: live workspace paths (project folders, the configured workdir, per-chat workdirs) are forward-enumerated and hashed with the existing workspace_id_for derivation; a shadow directory matching none of them is unreachable from the UI forever and is removed after a grace window. - Optional age-out: retention_max_age_days (default 0 = keep forever) removes a live workspace's history when it has had no snapshot in N days. Time Travel lazily re-initializes an empty history on the next snapshot, so this is always safe for the feature. - Stale locks: repo.git/index.lock older than retention_stale_lock_minutes is removed (git subprocesses are killed at GIT_TIMEOUT_SECONDS, so no legitimate lock lives that long), un-wedging future snapshots. - Corrupt-repo set-asides (repo.git.invalid*) past the grace window. Deletion is refused for any path outside the shadow root. Settings render in the existing plugin-config pattern (default_config.yaml + webui/config.html, settings_sections: agent): enable toggle, sweep interval, age-out days, orphan grace, stale-lock age. Durable evidence lives next to the workspaces dir: retention.json (running totals + last sweep stamp) and retention.log (one JSON line per sweep naming everything removed, tail-capped at 1000). Sweeps run in a worker thread off the event loop, at most one in flight, default every 6 hours. Tests: tests/test_time_travel_retention.py (config defaults/clamps, the full sweep matrix, keep-forever default, disabled no-op, deletion guard, marker accrual, per-sweep history + cap, throttle, and workspace_id_for parity). |
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| .. | ||
| api | ||
| extensions | ||
| helpers | ||
| webui | ||
| AGENTS.md | ||
| default_config.yaml | ||
| plugin.yaml | ||