feat: refresh shared Git config mounts live

- Use profile-scoped canonical Git clone sources with locked refreshes - Mount shared Git configuration read-only and isolate profile content - Add API and desktop/mobile actions for live Git mount refresh Quality gates: frontend build and backend py_compile passed. Skipped: backend pytest/Ruff unavailable; Docker/manual checks not approved.
2026-07-21 14:37:42 +00:00
parent 3c25fffd49
commit 886c863260
11 changed files with 254 additions and 81 deletions
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+# Live Git Config Mount Refresh
+
+## Why
+
+Git-backed Config Profile mounts are currently cloned per instance. Their content cannot be refreshed consistently for running sessions, and writable container mounts can dirty the checkout.
+
+## Change
+
+Move Git Config Profile mounts to profile-scoped canonical host clones. Bind the already-mounted directory sources read-only into compatible instances and refresh a stable branch/ref checkout in place under a per-clone lock.
+
+## Scope
+
+- Canonical clone identity: profile, normalized remote, requested ref, and credential scope.
+- In-place refresh for existing directory mounts only.
+- Explicit outcomes for live refresh, restart-required topology changes, and refresh failures.
+- Read-only container Git config mounts.
+
+## Out of scope
+
+- Writable shared Git configuration mounts.
+- Global cross-user clone sharing.
+- Live mount-topology changes, direct-file mappings, or glob match-set changes.
+- Atomic all-files revision switching for processes already reading the mount.
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+# Design: Live Git Config Mount Refresh
+
+## Canonical source
+
+Each selected Config Profile owns canonical Git clone directories beneath:
+
+```text
+<instance-root>/config-profiles/<profile-id>/git-mounts/<identity>/repo
+```
+
+`identity` is a stable hash of normalized remote URL, requested ref, and credential scope. Sources are deliberately profile-scoped; clones are never shared across users.
+
+## Runtime behavior
+
+1. Resolve Git mounts and map them to canonical sources.
+2. Acquire an exclusive lock for clone, fetch, ref resolution, and checkout.
+3. Clone into a temporary sibling, then rename on initial creation.
+4. For refresh, fetch and update the existing working tree in place.
+5. Bind directory mappings read-only. Existing containers see changed directory contents without recreation.
+
+## Boundaries
+
+- URL/ref/source/target/mode changes, direct-file mappings, and changed glob result sets return `restart_required`.
+- Refresh failure is reported without mutating a known-good checkout.
+- No non-Git profile content may be copied into a Git checkout; overlapping targets are rejected or reported.
+- Containers must not write to shared Git mount sources.
+
+## Security
+
+Host Git operations use only an authorized server-side credential source. Credentials are not part of the mounted checkout and are not exposed to containers.
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+# Live Git Config Mount Refresh — Tasks
+
+- [x] Add canonical profile-scoped Git clone source planning and clone identity helpers.
+- [x] Make Git Config Profile mounts read-only and prevent profile-content copy into Git sources.
+- [x] Add lock-protected clone/fetch/ref checkout refresh that preserves a known-good checkout on failure.
+- [x] Add save/refresh outcomes for live refresh, restart-required topology, and failures.
+- [x] Add desktop/mobile feedback for refresh outcomes.
+- [ ] Add focused resolver/service/API/frontend tests.
+- [x] Run available verification and document skipped checks.
+
+## Verification Notes
+
+- Passed: frontend production build and Python compilation for changed backend modules.
+- Skipped: backend pytest and Ruff are unavailable in this environment; Docker/manual live-session checks were not approved.
+- Known tooling limitation: project-map patching fails before execution because its runtime sends an unsupported `temperature` parameter.