Helps separate your audio and video files into saves and deletes using Ruby and MPlayer.

organize-av-files

#!/usr/bin/env ruby

# organize-av-files - Organizes files playable by mplayer
# into 'saves', 'deletes', and 'undecideds' subdirectories.
#
# stored at:
# https://gist.github.com/keithrbennett/4d9953e66ea35e2c52abae52650ebb1b


require 'date'
require 'fileutils'
require 'set'

LOG_FILESPEC = 'organize-av-files.log'

def create_dirs
  %w{deletes  saves  undecideds}.each { |dir| FileUtils.mkdir_p(dir) }
end


def check_presence_of_mplayer
  if `which mplayer`.chomp.size == 0
    raise "mplayer not detected. "
        "Please install it (with apt, brew, yum, etc.)"
  end
end


# Takes all ARGV elements, expands any wildcards,
# converts to normalized (absolute) form,
# and eliminates duplicates.
def files_to_process

  # Dir[] does not understand ~, need to process it ourselves.
  # This does *not* handle the `~username` form.
  replace_tilde_if_needed = ->(filespec) do
    filespec.start_with?('~/')                    \
        ? File.join(ENV['HOME'], filespec[2, -1]) \
        : filespec
  end

  # When Dir[] gets a directory it returns no files.
  # Need to add '/*' to it.
  add_star_to_dirspec_if_needed = ->(filespec) do
    File.directory?(filespec)      \
        ? File.join(filespec, '*') \
        : filespec
  end

  # Default to all nonhidden files in current directory
  # but not its subdirectories.
  ARGV[0] ||= '*'

  all_filespecs = ARGV.each_with_object(Set.new) do |filemask, all_filespecs|
    filemask = replace_tilde_if_needed.(filemask)
    filemask = add_star_to_dirspec_if_needed.(filemask)

    Dir[filemask]                          \
        .map { |f| File.absolute_path(f) } \
        .select { |f| File.file?(f) }      \
        .each do |filespec|
      all_filespecs << filespec
    end
  end
  all_filespecs.sort
end


def greeting
  puts <<~GREETING
      organize-av-files

      Enables the vetting of audio and video files. 

      For each file, plays it with mplayer, and prompts for what you would like to do 
      with that file, moving the file to one of the following subdirectories:

      * deletes
      * saves
      * undecideds

      This software uses mplayer to play audio files. Use cursor keys to move forwards/backwards in time.
      Press 'q' or 'ESC' to abort playback and specify disposition of that file.

      Run `man mplayer` for more on mplayer.

      Assumes all files in the current directory are files playable by mplayer.
      Creates subdirectories in the current directory: deletes, saves, undecideds.
      Logs to file '#{LOG_FILESPEC}'

  GREETING
end


def play_file(filespec)
  # If you have mplayer problems, remove the redirection ("2> /dev/null")
  # to see any errors.
  `mplayer #{filespec} 2> /dev/null`
end


def disposition_prompt(filespec)
  "\n\n#{filespec}:\ns = save, d = delete, u = undecided, q = quit: "
end


def get_disposition_from_user
  loop do
    response = $stdin.gets.chomp.downcase

    if response == 'q'
      exit
    elsif %w(s d u).include?(response)
      return {
          's' => 'saves',
          'd' => 'deletes',
          'u' => 'undecideds'
      }[response]
    else
      print "s = save, d = delete, u = undecided, q = quit: "
    end
  end
end


def log(filespec, destination_subdir)
  dest_abbrev = destination_subdir[0].upcase # 'S' for saves, etc.
  log_message = "#{dest_abbrev}  #{Time.now}  #{filespec}"
  `echo #{log_message} >> #{LOG_FILESPEC}`
end


def main
  check_presence_of_mplayer
  create_dirs
  puts greeting
  files_to_process.each do |filespec|
    play_file(filespec)
    print disposition_prompt(filespec)
    destination_subdir = get_disposition_from_user
    `mv #{filespec} #{destination_subdir}`
    log(filespec, destination_subdir)
  end
end


main