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require 'active_support/backtrace_cleaner'
module Rails
class BacktraceCleaner < ActiveSupport::BacktraceCleaner
APP_DIRS_PATTERN = /^\/?(app|config|lib|test)/
RENDER_TEMPLATE_PATTERN = /:in `_render_template_\w*'/
def initialize
super
add_filter { |line| line.sub("#{Rails.root}/", '') }
add_filter { |line| line.sub(RENDER_TEMPLATE_PATTERN, '') }
add_filter { |line| line.sub('./', '/') } # for tests
add_gem_filters
add_silencer { |line| line !~ APP_DIRS_PATTERN }
end
private
def add_gem_filters
return unless defined?(Gem)
gems_paths = (Gem.path + [Gem.default_dir]).uniq.map!{ |p| Regexp.escape(p) }
return if gems_paths.empty?
gems_regexp = %r{(#{gems_paths.join('|')})/gems/([^/]+)-([\w.]+)/(.*)}
add_filter { |line| line.sub(gems_regexp, '\2 (\3) \4') }
end
end
# For installing the BacktraceCleaner in the test/unit
module BacktraceFilterForTestUnit #:nodoc:
def self.included(klass)
klass.send :alias_method_chain, :filter_backtrace, :cleaning
end
def filter_backtrace_with_cleaning(backtrace, prefix=nil)
backtrace = filter_backtrace_without_cleaning(backtrace, prefix)
backtrace = backtrace.first.split("\n") if backtrace.size == 1
Rails.backtrace_cleaner.clean(backtrace)
end
end
end
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