unicorn: load constants after app has loaded

This will help ensure we use the same version of Rack the
application uses and avoid loading conflicting/incompatible
versions.

1 files changed, 4 insertions, 4 deletions

diff --git a/lib/unicorn.rb b/lib/unicorn.rb
index b63abeb..75ce09d 100644
--- a/lib/unicorn.rb
+++ b/lib/unicorn.rb
@@ -800,15 +800,15 @@ module Unicorn
 
     def build_app!
       if app.respond_to?(:arity) && app.arity == 0
-        # exploit COW in case of preload_app.  Also avoids race
-        # conditions in Rainbows! since load/require are not thread-safe
-        Unicorn.constants.each { |x| Unicorn.const_get(x) }
-
         if defined?(Gem) && Gem.respond_to?(:refresh)
           logger.info "Refreshing Gem list"
           Gem.refresh
         end
         self.app = app.call
+
+        # exploit COW in case of preload_app.  Also avoids race
+        # conditions in Rainbows! since load/require are not thread-safe
+        Unicorn.constants.each { |x| Unicorn.const_get(x) }
       end
     end