Graham McIntire
b8a9b8a465
Turned on :error_handling, :underspecs, and :unmatched_returns in mix.exs dialyzer config. The 97 warnings this surfaced were fixed in place rather than suppressed: - unmatched_return (79): explicit discard with `_ = ...` for fire-and-forget side effects (Process.cancel_timer, :ets.new, send/2), and pattern-matched `:ok = ...` for control-plane Phoenix.PubSub subscribe/unsubscribe/broadcast calls so a future return-shape change fails loud. - contract_supertype (18): tightened @spec arg and return types on data_builder, historical_loader, url_params, packet_utils, encoding_utils, aprs_symbol, weather_controller, packet_replay to match each function's actual success typing. No behavioural change. mix compile clean, 1008 tests pass, dialyzer count is now 0.
63 lines
1.7 KiB
Elixir
63 lines
1.7 KiB
Elixir
defmodule Aprsme.DeploymentNotifier do
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@moduledoc """
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Monitors for deployment changes and notifies connected clients.
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In k8s, this detects when the DEPLOYED_AT environment variable changes.
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"""
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use GenServer
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require Logger
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@check_interval 30_000
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def start_link(opts \\ []) do
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GenServer.start_link(__MODULE__, opts, name: __MODULE__)
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end
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def init(_opts) do
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# Schedule first check
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Process.send_after(self(), :check_deployment, @check_interval)
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# Get initial deployment timestamp
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deployed_at = Aprsme.Release.deployed_at()
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{:ok, %{deployed_at: deployed_at}}
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end
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def handle_info(:check_deployment, state) do
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# Schedule next check
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Process.send_after(self(), :check_deployment, @check_interval)
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# Get current deployment timestamp
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current_deployed_at = Aprsme.Release.deployed_at()
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# Check if deployment timestamp changed (shouldn't happen in same process, but useful for monitoring)
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if current_deployed_at == state.deployed_at do
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{:noreply, state}
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# Broadcast the new deployment
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else
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Logger.info("Deployment timestamp changed from #{state.deployed_at} to #{current_deployed_at}")
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_ =
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Phoenix.PubSub.broadcast(
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Aprsme.PubSub,
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"deployment_events",
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{:new_deployment, %{deployed_at: current_deployed_at}}
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)
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{:noreply, %{state | deployed_at: current_deployed_at}}
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end
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end
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@doc """
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Notify about a new deployment immediately.
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This can be called from the release module when deployment is detected.
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"""
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def notify_deployment(deployed_at) do
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Phoenix.PubSub.broadcast(
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Aprsme.PubSub,
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"deployment_events",
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{:new_deployment, %{deployed_at: deployed_at}}
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)
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end
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end
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