today's duplicate imgs

gistfile1.rb

#!/usr/bin/env ruby
today = Time.now.yday
duplicate_files = []

File.read('/opt/images.tsv').lines.reduce([]) do |files, entry|
  size, filename = entry.chomp.split
  if filename and not filename.empty?
    files << [File.basename(filename), filename].join(':')
  end

  files
end.sort.reduce do |last_entry, entry|
  basename, path = entry.split(':')
  if last_entry
    last_basename, last_path = last_entry.split(':')
    if basename == last_basename
      mtime = File.mtime(path)
      if mtime.yday == today
        [path, last_path].each do |p|
          duplicate_files << p
        end
      end
    end
  end

  last_entry = entry
end

duplicate_files.uniq.each do |file|
  puts [file, File.mtime(file)].join("\t")
end