From a6a79f83b8b9be8c76065d3f333744c4272e0c49 Mon Sep 17 00:00:00 2001
From: Joe Rafaniello <jrafanie@gmail.com>
Date: Fri, 21 Jul 2023 12:24:52 -0400
Subject: [PATCH] Add ENV variable to debug zeitwerk with logging and eager
 loading

It's far easier to debug in dev/test/containers using an ENV variable
so we'll make it so zeitwerk stdout logging and eager loading of all engines
is only done with this flag enabled.
---
 config/application.rb           | 9 +++++++++
 config/initializers/zeitwerk.rb | 5 +++++
 2 files changed, 14 insertions(+)

diff --git a/config/application.rb b/config/application.rb
index 41909fd943dc..e1fcc3928bcc 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -164,6 +164,15 @@ class Application < Rails::Application
       Vmdb::Loggers.apply_config(::Settings.log)
     end
 
+    initializer :eager_load_all_the_things, :after => :load_config_initializers do
+      if ENV['DEBUG_MANAGEIQ_ZEITWERK'].present?
+        config.eager_load_paths += config.autoload_paths
+        Vmdb::Plugins.each do |plugin|
+          plugin.config.eager_load_paths += plugin.config.autoload_paths
+        end
+      end
+    end
+
     config.after_initialize do
       Vmdb::Initializer.init
       ActiveRecord::Base.connection_pool.release_connection
diff --git a/config/initializers/zeitwerk.rb b/config/initializers/zeitwerk.rb
index 16f9b068120d..1e46e9d8e41a 100644
--- a/config/initializers/zeitwerk.rb
+++ b/config/initializers/zeitwerk.rb
@@ -1,4 +1,9 @@
 if Rails.application.config.autoloader == :zeitwerk && Rails.autoloaders.main
+  if ENV['DEBUG_MANAGEIQ_ZEITWERK'].present?
+    Zeitwerk::Loader.default_logger = method(:puts)
+    Rails.autoloaders.main.logger = Logger.new($stdout)
+  end
+
   # These specific directories are for code organization, not namespacing:
   # TODO: these should be either renamed with good names, the intermediate directory removed
   # and/or both.