- pool/worker.rs: single-threaded consumer that BLMPOPs from Redis queues
sequentially. K8s replicas provide HA — each pod runs one worker.
- pool/redis.rs: RedisConsumer with BLMOVE atomic dequeue, ACK/NAK, and
retry-with-json support.
- pool/types.rs: HookTask, TaskType, PoolConfig (minimal — no pool metrics).
- sync/lock.rs: Redis SET NX EX per-repo lock to prevent concurrent workers
from processing the same repo. Lock conflicts are handled by requeueing
without incrementing retry count.
- hook/mod.rs: HookService.start_worker() spawns the background worker.
- ssh/mod.rs / http/mod.rs: ReceiveSyncService RPUSHes to Redis queue.
Both run_http and run_ssh call start_worker() to launch the consumer.
- Lock conflicts (GitError::Locked) in the worker are requeued without
incrementing retry_count so another worker can pick them up.
