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RadarStore: use mounted data_dir so deploys don't wipe radars #37

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Merged
fleveque merged 1 commit into from
May 25, 2026
Merged

RadarStore: use mounted data_dir so deploys don't wipe radars #37

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9 changes: 7 additions & 2 deletions lib/pulse/radar_store.ex
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Original file line number Diff line number Diff line change
Expand Up @@ -51,8 +51,13 @@ defmodule Pulse.RadarStore do

@impl true
def init(_opts) do
path = Path.join(:code.priv_dir(:pulse), "data/radars.dets") |> to_charlist()
File.mkdir_p!(Path.dirname(to_string(path)))
# Read from the configurable data_dir (overridden in prod via DATA_DIR
# → /app/data, a Kamal-mounted volume). Matches Pulse.Store / Analytics
# / RadarAnalytics — using :code.priv_dir/1 here meant every deploy
# wiped the file because release dirs are rebuilt per image.
data_dir = Application.get_env(:pulse, :data_dir, "priv/data")
File.mkdir_p!(data_dir)
path = Path.join(data_dir, "radars.dets") |> String.to_charlist()

case :dets.open_file(@table, file: path, type: :set) do
{:ok, table} ->
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