Show application version in console banner

lib/music_library/application.ex

@@ -43,6 +43,10 @@ defmodule MusicLibrary.Application do
     :ok
   end
 
+  def version do
+    System.get_env("SOURCE_COMMIT") || "development"
+  end
+
   defp skip_migrations? do
     # By default, sqlite migrations are run when using a release
     System.get_env("RELEASE_NAME") != nil

lib/music_library_web/components/layouts/root.html.heex

@@ -4,6 +4,7 @@
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no" />
     <meta name="csrf-token" content={get_csrf_token()} />
+    <meta name="version" content={MusicLibrary.Application.version()} />
     <.live_title suffix=" · Music Library">
       {assigns[:page_title] || assigns.conn.request_path}
     </.live_title>