fabro/lib/components/fabro-github
Bryan Helmkamp 5c6289df80
Simplify async pull request creation
Structural cleanup of the durable pull request creation feature, from a
three-agent review (reuse, quality, efficiency) of the branch:

- Move the supervisor out of handler/ into server/pull_request_supervisor.rs,
  collapse its double bookkeeping into one task-id map, and fold the five
  copy-pasted failure arms into attempt_pull_request_creation.
- Tag pull_request.failed events with the creation id they resolve, so a
  publish-stage failure can never fail an unrelated explicit creation. The
  reducer gains PullRequestCreation::succeed/fail transition methods.
- Scan pending creations through a narrow projection-cache accessor instead
  of materializing every run summary, raise the scan interval to 30s (notify
  covers the live path), and cap retries for runs whose worker cannot even
  record a failure.
- Answer "creation already pending" POSTs before taking the per-run create
  lock, which a worker can hold for the whole creation.
- Replace the hand-rolled per-run lock map with fabro_store::KeyedMutex.
- Reuse cheap Arc'd projections (cached_run_projection) on the poll endpoint
  and in the worker instead of deep-cloning run summaries and diffs.
- Merge ExistingPullRequest into fabro_github::CreatedPullRequest and
  extract one reconcile_existing_pull_request helper for both call sites.
- Give the client poll loop a 15-minute deadline; document that Retry-After
  and the poll interval are the same constant.
- Resolve a wedged pending creation (run already has a pull request) as a
  durable failure instead of skipping it forever.
- Tests: shared wait_for_pull_request_creation helper, a pinned generation-
  failure assertion, and a new pipeline test proving reconciliation adopts
  an existing PR without an LLM call or create request.

Verified: cargo build --workspace, cargo nextest run --workspace (7,767
passed), nightly clippy -D warnings, fmt --check, insta (no pending), bun
typecheck in fabro-api-client.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-08-04 14:51:29 -04:00
..
src Simplify async pull request creation 2026-08-04 14:51:29 -04:00
tests refactor: organize crates into three layers 2026-07-23 17:59:34 -04:00
Cargo.toml refactor: organize crates into three layers 2026-07-23 17:59:34 -04:00