0001-Workaround-undefined-method-singleton_class-error.patch

From 81cb056aaa972a0c1ad9a49b7c4887d0df8111d6 Mon Sep 17 00:00:00 2001
From: Adam Ruzicka <aruzicka@redhat.com>
Date: Wed, 22 Jul 2020 12:26:17 +0200
Subject: [PATCH] Workaround undefined method singleton_class? error

NoMethodError: undefined method `singleton_class?' for #<Class:0x0000556b7d6b69b0>
/tmp/foreman/app/models/operatingsystem.rb:91:in `<class:Jail>'
/tmp/foreman/app/models/operatingsystem.rb:90:in `<class:Operatingsystem>'
/tmp/foreman/app/models/operatingsystem.rb:4:in `<main>'
/tmp/foreman/app/models/concerns/audit_search.rb:82:in `block in audited_classes_without_sti'
/tmp/foreman/app/models/concerns/audit_search.rb:81:in `reject'
/tmp/foreman/app/models/concerns/audit_search.rb:81:in `audited_classes_without_sti'
/tmp/foreman/app/models/concerns/audit_search.rb:51:in `auditable_type_complete_values'
/tmp/foreman/app/models/concerns/audit_search.rb:24:in `block in <module:AuditSearch>'
/tmp/foreman/config/application.rb:365:in `include'
/tmp/foreman/config/application.rb:365:in `setup_auditing'
/tmp/foreman/config/application.rb:339:in `block in <class:Application>'
/tmp/foreman/config/environment.rb:5:in `<main>'
/home/aruzicka/.gem/ruby/2.6.0/gems/bundler-2.1.4/lib/bundler/cli/exec.rb:63:in `load'
/home/aruzicka/.gem/ruby/2.6.0/gems/bundler-2.1.4/lib/bundler/cli/exec.rb:63:in `kernel_load'
/home/aruzicka/.gem/ruby/2.6.0/gems/bundler-2.1.4/lib/bundler/cli/exec.rb:28:in `run'
/home/aruzicka/.gem/ruby/2.6.0/gems/bundler-2.1.4/lib/bundler/cli.rb:476:in `exec'
/home/aruzicka/.gem/ruby/2.6.0/gems/bundler-2.1.4/lib/bundler/vendor/thor/lib/thor/command.rb:27:in `run'
/home/aruzicka/.gem/ruby/2.6.0/gems/bundler-2.1.4/lib/bundler/vendor/thor/lib/thor/invocation.rb:127:in `invoke_command'
/home/aruzicka/.gem/ruby/2.6.0/gems/bundler-2.1.4/lib/bundler/vendor/thor/lib/thor.rb:399:in `dispatch'
/home/aruzicka/.gem/ruby/2.6.0/gems/bundler-2.1.4/lib/bundler/cli.rb:30:in `dispatch'
/home/aruzicka/.gem/ruby/2.6.0/gems/bundler-2.1.4/lib/bundler/vendor/thor/lib/thor/base.rb:476:in `start'
/home/aruzicka/.gem/ruby/2.6.0/gems/bundler-2.1.4/lib/bundler/cli.rb:24:in `start'
/home/aruzicka/.gem/ruby/2.6.0/gems/bundler-2.1.4/exe/bundle:46:in `block in <top (required)>'
/home/aruzicka/.gem/ruby/2.6.0/gems/bundler-2.1.4/lib/bundler/friendly_errors.rb:123:in `with_friendly_errors'
/home/aruzicka/.gem/ruby/2.6.0/gems/bundler-2.1.4/exe/bundle:34:in `<top (required)>'
/home/aruzicka/.rbenv/versions/2.6.3/bin/bundle:23:in `load'
/home/aruzicka/.rbenv/versions/2.6.3/bin/bundle:23:in `<main>'
Tasks: TOP => db:drop => db:load_config => environment
(See full trace by running task with --trace)
---
 lib/zeitwerk/explicit_namespace.rb | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git lib/zeitwerk/explicit_namespace.rb lib/zeitwerk/explicit_namespace.rb
index 2d4f015..2a0d755 100644
--- lib/zeitwerk/explicit_namespace.rb
+++ lib/zeitwerk/explicit_namespace.rb
@@ -59,7 +59,11 @@ module Zeitwerk
         # If the class is a singleton class, we won't do anything with it so we
         # can bail out immediately. This is several orders of magnitude faster
         # than accessing its name.
-        return if event.self.singleton_class?
+        begin
+          return if event.self.singleton_class?
+        rescue NoMethodError
+          puts "FIXME"
+        end
 
         # Note that it makes sense to compute the hash code unconditionally,
         # because the trace point is disabled if cpaths is empty.
-- 
2.25.4