vendor/rails/railties/lib/rails/backtrace_cleaner.rb

   1 module Rails
   2   class BacktraceCleaner < ActiveSupport::BacktraceCleaner
   3     ERB_METHOD_SIG = /:in `_run_erb_.*/
   4
   5     RAILS_GEMS   = %w( actionpack activerecord actionmailer activesupport activeresource rails )
   6
   7     VENDOR_DIRS  = %w( vendor/rails )
   8     SERVER_DIRS  = %w( lib/mongrel bin/mongrel
   9                        lib/passenger bin/passenger-spawn-server
  10                        lib/rack )
  11     RAILS_NOISE  = %w( script/server )
  12     RUBY_NOISE   = %w( rubygems/custom_require benchmark.rb )
  13
  14     ALL_NOISE    = VENDOR_DIRS + SERVER_DIRS + RAILS_NOISE + RUBY_NOISE
  15
  16     def initialize
  17       super
  18       add_filter   { |line| line.sub("#{RAILS_ROOT}/", '') }
  19       add_filter   { |line| line.sub(ERB_METHOD_SIG, '') }
  20       add_filter   { |line| line.sub('./', '/') } # for tests
  21
  22       add_gem_filters
  23
  24       add_silencer { |line| ALL_NOISE.any? { |dir| line.include?(dir) } }
  25       add_silencer { |line| RAILS_GEMS.any? { |gem| line =~ /^#{gem} / } }
  26       add_silencer { |line| line =~ %r(vendor/plugins/[^\/]+/lib) }
  27     end
  28
  29
  30     private
  31       def add_gem_filters
  32         Gem.path.each do |path|
  33           # http://gist.github.com/30430
  34           add_filter { |line| line.sub(/(#{path})\/gems\/([a-z]+)-([0-9.]+)\/(.*)/, '\2 (\3) \4')}
  35         end
  36
  37         vendor_gems_path = Rails::GemDependency.unpacked_path.sub("#{RAILS_ROOT}/",'')
  38         add_filter { |line| line.sub(/(#{vendor_gems_path})\/([a-z]+)-([0-9.]+)\/(.*)/, '\2 (\3) [v] \4')}
  39       end
  40   end
  41
  42   # For installing the BacktraceCleaner in the test/unit
  43   module BacktraceFilterForTestUnit #:nodoc:
  44     def self.included(klass)
  45       klass.send :alias_method_chain, :filter_backtrace, :cleaning
  46     end
  47
  48     def filter_backtrace_with_cleaning(backtrace, prefix=nil)
  49       backtrace = filter_backtrace_without_cleaning(backtrace, prefix)
  50       backtrace = backtrace.first.split("\n") if backtrace.size == 1
  51       Rails.backtrace_cleaner.clean(backtrace)
  52     end
  53   end
  54 end