Copper Searcher

#!/usr/bin/env ruby

@file_patterns = File.readlines("#{Dir.home}/.cuignore")
@ptn = ARGV[0]

def search(f)
  res = {}
  h = File.open(f, 'r')
  h.each_line {|line|
    if line.index(@ptn)
      begin
        hline = line.gsub(@ptn, "\033[32m#{@ptn}\033[0m")
        res[h.lineno] = hline
      rescue ArgumentError => e
        puts
        puts "\033[36m#{f}\033[0m: \033[31m#{e}\033[0m"
      end
    end
  }

  if res.size > 0
    puts
    puts "\033[36m#{f}\033[0m:"
    res.keys.each do |key|
      puts "#{key}:#{res[key]}"
    end
  end
end

def list(dir)
  Dir.foreach(dir) do |fname|
    next if fname == '.' or fname == '..' or @file_patterns.any? { |p| File.fnmatch(p.strip, File.basename(fname)) }
    f = File.join(dir, fname)
    if File.directory?(f)
      list(f)
    else
      search(f)
    end
  end
end

list(".")