require 'find'

def prepend_to_files_in_folder path, filetype, string_to_append
	filetype_regex = /.*#{filetype}/
	total_file_count = 0
	Find.find(path) do |directories_and_files|
		if File.file?(directories_and_files) and filetype_regex =~ directories_and_files
			begin
				File.open(directories_and_files, 'r') do |old_file|
					temp_string_array = old_file.readlines.join
				end
				File.open(directories_and_files, 'w') do |new_file|
					new_file << string_to_append
					new_file << temp_string_array
				end
			rescue => error
				puts "I errored with this error: #{error}"
			end
			puts "#{directories_and_files}"
			total_file_count += 1
		end
	end
	if total_file_count == 0
		puts "No matched file(s) was(were) found."
	else
		puts "#{total_file_count} file(s) was(were) updated."
	end
endP