231: def investigation
232: result = "------------------------------\n"
233: result << "Investigating #{name}\n"
234: result << "class: #{self.class}\n"
235: result << "task needed: #{needed?}\n"
236: result << "timestamp: #{timestamp}\n"
237: result << "pre-requisites: \n"
238: prereqs = @prerequisites.collect {|name| Rake::Task[name]}
239: prereqs.sort! {|a,b| a.timestamp <=> b.timestamp}
240: prereqs.each do |p|
241: result << "--#{p.name} (#{p.timestamp})\n"
242: end
243: latest_prereq = @prerequisites.collect{|n| Rake::Task[n].timestamp}.max
244: result << "latest-prerequisite time: #{latest_prereq}\n"
245: result << "................................\n\n"
246: return result
247: end