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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
gems_paths = (Gem.path | [Gem.default_dir]).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
end
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