#!/usr/bin/ruby

require 'tempfile'

paths = `find -name \"*.rb\"`

paths.each do |path|
    header = `cat gplheader`
    excludes = ["./gplh.rb"]
    pth = path.chomp
    
    if not excludes.include?(pth)
        Tempfile.open File.basename(path.chomp) do |tempfile|
          # prepend data to tempfile
          tempfile << header

          File.open(path.chomp, 'r+') do |file|
            # append original data to tempfile
            tempfile << file.read
            # reset file positions
            file.pos = tempfile.pos = 0
           # copy all data back to original file
           file << tempfile.read
           p "Added header to: "+file.path
          end

        end
    end
end

p "Done."