module Rake module Backtrace SUPPRESSED_PATHS = RbConfig::CONFIG.values_at(*RbConfig::CONFIG. keys.grep(/(prefix|libdir)/)).uniq + [ File.join(File.dirname(__FILE__), ".."), ].map { |f| Regexp.quote(File.expand_path(f)) } SUPPRESSED_PATHS.reject! { |s| s.nil? || s =~ /^ *$/ } SUPPRESS_PATTERN = %r!(\A#{SUPPRESSED_PATHS.join('|')}|bin/rake:\d+)!i def self.collapse(backtrace) pattern = Rake.application.options.suppress_backtrace_pattern || SUPPRESS_PATTERN backtrace.reject { |elem| elem =~ pattern } end end end