Close TD-21 atomic write hardening

2026-06-12 14:08:42 +02:00
parent a73af6b44d
commit 941db4c6f4
3 changed files with 63 additions and 2 deletions
--- a/lib/bds/persistence.ex
+++ b/lib/bds/persistence.ex
@@ -68,7 +68,7 @@ defmodule BDS.Persistence do
  def parse_timestamp(_value), do: nil

  def atomic_write(path, contents) when is_binary(path) and is_binary(contents) do
-    temp_path = path <> ".tmp"
+    temp_path = path <> ".tmp." <> Integer.to_string(System.unique_integer([:positive]))

    with :ok <- File.mkdir_p(Path.dirname(path)),
         :ok <- File.write(temp_path, contents),