prop/lib/microwaveprop/workers/propagation_prune_worker.ex
Graham McIntire fd976b0cd5
fix: resolve 391 Credo issues across codebase
- Add jump_credo_checks ~> 0.4 with all 20 checks enabled
- Fix all standard Credo issues: 139 @spec (113 done, 26 remain),
  4 refactoring, 3 alias usage, 9 System.cmd env, 5 unsafe_to_atom,
  2 max line length, 9 assert_receive timeout
- Fix 170+ jump_credo_checks warnings:
  - 117 TopLevelAliasImportRequire: move nested alias/import to module top
  - 32 UseObanProWorker: switch to Oban.Pro.Worker
  - 4 DoctestIExExamples: add doctests / create test file
  - ~20 WeakAssertion: strengthen type-check assertions
  - Various ConditionalAssertion, AssertReceiveTimeout fixes
- Exclude vendor/ from Credo analysis
- Remaining: 175 warnings (mostly opinionated WeakAssertion,
  AvoidSocketAssignsInTest), 26 @spec annotations
2026-06-12 13:51:32 -05:00

28 lines
937 B
Elixir

defmodule Microwaveprop.Workers.PropagationPruneWorker do
@moduledoc """
Standalone worker that prunes stale rows from `propagation_scores`.
Pruning used to be tacked on to the end of `PropagationGridWorker.perform/1`,
which meant it only ran after a successful grid compute. When the compute
worker was being killed mid-run (OOM / SIGTERM), prune never ran and the
table grew unbounded. Running prune on its own cron keeps the table healthy
regardless of the compute worker's state.
"""
use Oban.Pro.Worker,
queue: :propagation,
# Lower priority than PropagationGridWorker so the hourly chain
# never waits behind a pending prune on the shared :propagation
# queue (2 slots).
priority: 5,
max_attempts: 3,
unique: [period: 300, states: :incomplete]
alias Microwaveprop.Propagation
@impl Oban.Worker
def perform(%Oban.Job{}) do
Propagation.prune_old_scores()
:ok
end
end