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-rw-r--r--railties/lib/rails/backtrace_cleaner.rb4
1 files changed, 2 insertions, 2 deletions
diff --git a/railties/lib/rails/backtrace_cleaner.rb b/railties/lib/rails/backtrace_cleaner.rb
index 2f5632c3e4..cd7dd0f80a 100644
--- a/railties/lib/rails/backtrace_cleaner.rb
+++ b/railties/lib/rails/backtrace_cleaner.rb
@@ -27,10 +27,10 @@ module Rails
add_silencer { |line| RAILS_GEMS.any? { |gem| line =~ /^#{gem} / } }
add_silencer { |line| line =~ %r(vendor/plugins/[^\/]+/lib) }
end
-
-
+
private
def add_gem_filters
+ return unless defined? Gem
(Gem.path + [Gem.default_dir]).uniq.each do |path|
# http://gist.github.com/30430
add_filter { |line| line.sub(/(#{path})\/gems\/([a-z]+)-([0-9.]+)\/(.*)/, '\2 (\3) \4')}