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feat(snapshot): gcSnapshots + ocp update --rollback --gc + auto-GC; v3.16.0 (#94)

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Adds snapshot garbage collection with retention policy: keep last 5,
keep snapshots within 30 days, always keep the most recent. Configurable
via keepCount / keepDays opts.

Wire-up:
- ocp update --rollback --gc (manual trigger; --dry-run supported)
- runFullUpgrade auto-GC after successful upgrade (best-effort,
  swallows errors)

4 unit tests: keepCount enforcement, keepDays override, never-delete-
most-recent safety, dry-run mode.

Bumps to v3.16.0 (bundles PR #93 --check oauth + this GC feature).

No cli.js citation needed: this is OCP-internal snapshot lifecycle with
no corresponding cli.js operation.

Co-authored-by: dtzp555 <dtzp555@gmail.com>
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
dtzp555-max
2026-05-11 07:33:13 +10:00
committed by GitHub
co-authored by taodeng Claude Sonnet 4.6
parent a8601a6d30
commit 7a69d72886
6 changed files with 171 additions and 6 deletions
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CHANGELOG.md
+23
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@@ -1,5 +1,28 @@
# Changelog
## v3.16.0 — 2026-XX-XX (release date filled at tag time)
### Features
- **`ocp doctor --check oauth`** (PR #93) — fast path that runs only the OAuth check, skipping
version detection / from-version / git operations / models endpoint. ~50ms vs. full doctor's
~200-500ms. Use cases: AI agent repair loops, post-`claude auth login` verify, quick health
gates. Help text in `cmd_doctor_help` now reflects working behaviour.
- **`ocp update --rollback --gc`** — manually garbage-collect old upgrade snapshots.
Retention policy: keep last 5 snapshots OR snapshots newer than 30 days OR the single most
recent (always-keep safety net). `--dry-run` previews. Successful `ocp update` runs auto-GC
at the end of the full path; light path does not (no snapshot created there).
### Behavior changes
- After a successful cross-minor `ocp update`, the auto-GC emits `[gc] removed N old snapshots`
to stderr if any were collected. Safe to ignore; manual gc is `ocp update --rollback --gc`.
### Governance
- No `cli.js` citation needed (no `server.mjs` change). ALIGNMENT.md Rule 2 not engaged.
- PR #93 (--check oauth) merged separately; this release bundles it with the GC feature.
## v3.15.1 — 2026-05-10
### Fixes