Fixes #37600 - ignore missing content on RH repo deletion

app/lib/actions/candlepin/environment/set_content.rb

@@ -1,15 +1,19 @@
 module Actions
   module Candlepin
     module Environment
-      class SetContent < Candlepin::Abstract
+      class SetContent < Actions::Base
+        middleware.use ::Actions::Middleware::RemoteAction
+        middleware.use ::Actions::Middleware::CandlepinServicesCheck
+        middleware.use ::Actions::Middleware::KeepSessionId
+
         def plan(content_view, environment, content_view_environment, new_content_id = nil)
           plan_self(:content_view_id => content_view.id,
                     :environment_id => environment.id,
                     :cp_environment_id => content_view_environment.cp_id,
                     :new_content_id => new_content_id)
         end
 
-        def finalize # rubocop:disable Metrics/AbcSize
+        def finalize # rubocop:disable Metrics/AbcSize, Metrics/MethodLength
           content_view = ::Katello::ContentView.find(input[:content_view_id])
           environment = ::Katello::KTEnvironment.find(input[:environment_id])
           content_ids = content_view.repos(environment).map(&:content_id).uniq.compact
@@ -32,15 +36,24 @@ def finalize # rubocop:disable Metrics/AbcSize
               # Since its a dup id refresh the existing ids list (which hopefully will not have the duplicate content)
               # and try again.
               output[:add_ids] = content_ids - existing_ids
+            rescue RestClient::ResourceNotFound => e
+              # Set a higher limit for retries just in case the missing content is not being parsed from the error body correctly.
+              # If the content is not found after the retries, assume it is gone and continue.
+              raise e if ((retries += 1) == 1_000)
+              # Parse the missing content from the Candlepin response and remove it from the add_ids list.
+              missing_content = JSON.parse(e.response.body)['displayMessage'].split(' ')[-1].gsub(/"(.+?)"\./, '\1')
+              Rails.logger.debug "Content #{missing_content} not found in the environment. Removing it from the add_ids list."
+              output[:add_ids].delete(missing_content)
             end
           end
           retries = 0
           until output[:delete_ids].empty?
             begin
               output[:delete_response] = ::Katello::Resources::Candlepin::Environment.delete_content(input[:cp_environment_id], output[:delete_ids])
               break
-            rescue RestClient::ResourceNotFound => e
-              raise e if ((retries += 1) == max_retries)
+            rescue RestClient::ResourceNotFound
+              # If the content is not found after the retries, assume it is gone and continue.
+              break if ((retries += 1) == max_retries)
               # Candlepin raises a 404 in case a content id is not found in this environment
               # If thats the case lets just refresh the existing ids list (which hopefully will not have the 404'd content)
               # and try again.