determin inactive users and clean their PUNs too

nginx_stage/lib/nginx_stage.rb

@@ -192,6 +192,21 @@ def self.active_users
     end.compact
   end
 
+  # List of inactive users.
+  # @return [Array<String>] the list of inactive users.
+  def self.inactive_users
+    Dir[pun_pid_path(user: '*')].map do |v|
+      name = v[/#{pun_pid_path(user: '(.+)')}/, 1]
+      User.new(name)
+
+      # return nil here becasue we actually _want_ to rescue.
+      # i.e., a User is inactive if it _can't_ be instanitated.
+      nil
+    rescue ArgumentError => e
+      name
+    end.compact
+  end
+
   # Get a hash of all the staged app configs
   # @example List of all staged app configs
   #   staged_apps

nginx_stage/lib/nginx_stage/generators/nginx_clean_generator.rb

@@ -79,6 +79,21 @@ class NginxCleanGenerator < Generator
           $stderr.puts "#{$!.to_s}"
         end
       end
+
+      NginxStage.inactive_users.each do |u|
+        begin
+          puts "#{u} (disabled)"
+          pid_path = PidFile.new NginxStage.pun_pid_path(user: u)
+
+          `kill -s TERM #{pid_path.pid}`
+          FileUtils.rm_rf(Pathname.new(pid_path.to_s).parent)
+          FileUtils.rm(NginxStage.pun_secret_key_base_path(user: u).to_s)
+          FileUtils.rm(NginxStage.pun_config_path(user: u).to_s)
+
+        rescue StandardError => e
+          warn "Error trying to clean up disabled user #{u}: #{e.message}"
+        end
+      end
     end
 
     def cleanup_stale_files(pid_path, socket)