[Broadcaster] Add footer with version number (#16)

Author: mickel8

broadcaster/lib/broadcaster/application.ex

@@ -5,6 +5,20 @@ defmodule Broadcaster.Application do
 
   use Application
 
+  @version Mix.Project.config()[:version]
+
+  @spec version() :: String.t()
+  def version() do
+    "v#{@version} #{commit()}"
+  end
+
+  defp commit() do
+    case System.cmd("git", ["rev-parse", "--short", "HEAD"]) do
+      {hash, 0} -> "(#{String.trim(hash)})"
+      _ -> ""
+    end
+  end
+
   @impl true
   def start(_type, _args) do
     children = [

broadcaster/lib/broadcaster_web/components/layouts/app.html.heex

@@ -45,3 +45,6 @@ See https://stackoverflow.com/a/36247448/9620900
     <%= @inner_content %>
   </div>
 </main>
+<footer class="flex flex-row px-4 py-2 lg:justify-start justify-center font-semibold text-brand/80">
+  <%= Broadcaster.Application.version() %>
+</footer>