# regenerates all parser generated files in a source tree

puts "Deleting all *_parser.h files"


Dir.glob(File.join("**", "*_parser.{h,.h??????,xsd,xsd??????}")) do |filename|
	puts "Deleting #{filename}"
	File.unlink(filename)
end


puts "Looking for .PSC files - deleting any generated .cpp or .h files!"
Dir.glob(File.join("**", "*.psc")) do |filename|
	# check for .cpp and .h files - see if they are 1) writable and 2) appear to be generated
	baseName = filename.sub(/\.psc$/, "")
	Dir.glob(baseName + ".{cpp,cpp??????,h,h??????}") do |generatedName|
		if File.exists?(generatedName) and File.writable?(generatedName) then
		
			# does it look generated?
			headerCheckOneResult = false
			headerCheckTwoResult = false
			headerCheckThreeResult = false
		
			File.open(generatedName) do |f|
				f.each do |line|
					headerCheckOneResult = headerCheckOneResult || (line =~ /This file was generated by parCodeGen/)
					headerCheckTwoResult = headerCheckTwoResult || (line =~ /CHANGES WILL BE OVERWRITTEN/)
					headerCheckThreeResult = headerCheckThreeResult || (line =~ /DO NOT COMMIT/)
				end
			end
			
			if headerCheckOneResult && headerCheckTwoResult && headerCheckThreeResult then
				puts "Deleting autogenerated file #{generatedName}"
				File.unlink(generatedName)
			end
		end
	end
end