#!/usr/bin/env ruby

# FixmeFinder is an utility to search FIXME comments in your source code files
# Example:
#   patterns = %w[ app/**/*.rb lib/**/*.rb schemas/**/*.sql ]
#   finder = FixmeFinder.new(patterns)
#   finder.find
class FixmeFinder
  # Patterns to look for files (default is ["**/*.rb"]
  attr_accessor :patterns

  # Creates a Fixme finder. The pattern can be passed as an argument.
  def initialize(patterns=nil)
    @patterns = patterns || ["**/*.rb"]
    yield self if block_given?
  end

  # Find Fixme ocurrences if files. It outputs matches if +verbose+ is true.
  def find(verbose=true)
    files =[]
    files = @patterns.inject([]) {|sum,p| sum += Dir.glob(p)}
    files.inject(Array.new) do |matches,f|
      unless File.expand_path(__FILE__) == File.expand_path(f)
        File.open(f).readlines.each_with_index do |line,i|
          if /(FIXME):?\s*(.*$)/.match(line)
            puts "#{f}:#{i+1}: #{$2}" if verbose
            matches += [{:file => f, :line => i+1, :match => $2}]
          end
        end
      end
      matches
    end
  end
end