module Rake module Backtrace SYS_KEYS = RbConfig::CONFIG.keys.grep(/(prefix|libdir)/) SYS_PATHS = RbConfig::CONFIG.values_at(*SYS_KEYS).uniq + [ File.join(File.dirname(__FILE__), "..") ] SUPPRESSED_PATHS = SYS_PATHS. map { |s| s.gsub("\\", "/") }. map { |f| File.expand_path(f) }. reject { |s| s.nil? || s =~ /^ *$/ } SUPPRESSED_PATHS_RE = SUPPRESSED_PATHS.map { |f| Regexp.quote(f) }.join("|") SUPPRESS_PATTERN = %r!(\A(#{SUPPRESSED_PATHS_RE})|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