jcs.org
utility to sync an itunes playlist to a directory (like a mounted sd card/phone)
restrict pathnames to avoid indexing problems on some players/filesystems
use rsync's --progress flag
make sure the destination volume can take the amount of data being
synced
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itunes-rsync.rb
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itunes-rsync.rb
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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#
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
···
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# documentation and/or other materials provided with the distribution.
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# 3. The name of the author may not be used to endorse or promote products
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# derived from this software without specific prior written permission.
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#
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
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# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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end
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else
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puts "error: directory \"#{destdir}\" does not exist, exiting"
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exit
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exit 1
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end
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print "querying itunes for playlist \"#{playlist}\"... "
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puts "querying itunes for playlist \"#{playlist}\"..."
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itunes = Appscript.app.by_name("iTunes", ITunesFix)
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begin
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if !(itpl = itunes.playlists[playlist])
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raise "no such playlist with that name"
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end
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itpl = itunes.playlists[playlist]
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tracks = itpl.file_tracks.get.map{|t| t.location.get.path }
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rescue => e
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puts "could not find playlist #{playlist.inspect}, exiting"
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exit 1
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end
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if !itpl
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puts "could not locate, exiting"
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exit
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end
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# figure out how much space we're going to take
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bytes = 0
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tracks.each{|t| bytes += File.size(t) }
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mbytes = bytes.to_f / (1024 * 1024)
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tracks = itpl.file_tracks.get.map{|t| t.location.get.path }
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puts "found #{tracks.length} track#{tracks.length == 1 ? "" : "s"} with " +
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"size #{sprintf("%0.2fMb", mbytes)}"
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puts "found #{tracks.length} track#{tracks.length == 1 ? '' : 's'}."
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# make sure the destination can take it
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df_m = `df -m #{destdir}`.split("\n").last.split(" ")[1].to_i
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if mbytes > df_m
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puts "error: #{destdir} has size of #{df_m}Mb, need #{mbytes.ceil}Mb to sync"
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exit 1
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end
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# figure out where all of them are stored by checking for the greatest common
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# figure out where all tracks are stored by checking for the greatest common
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# directory of every track
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gcd = ""
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(1 .. tracks.map{|t| t.length }.max).each do |s|
···
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end
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end
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# setup work dir
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td = `mktemp -d /tmp/itunes-rsync.XXXXX`.strip
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# mirror directory structure and create symlinks
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# link each track into the workspace
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print "linking files under #{td}/... "
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tracks.each do |t|
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shortpath = t[gcd.length .. t.length - 1]
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tmppath = "#{td}/#{shortpath}"
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# restrict pathnames to avoid indexing problems on some players/filesystems
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tmppath.gsub!(/[^A-Za-z0-9\.\/,' -]/, "_")
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if !Dir[File.dirname(tmppath)].any?
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# i'm too lazy to emulate -p with Dir.mkdir
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system("mkdir", "-p", File.dirname(tmppath))
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end
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···
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# times don't ever seem to match up, so only check size
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puts "rsyncing to #{destdir}... "
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system("rsync", "-Lrv", "--size-only", "--delete", "#{td}/", destdir)
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system("rsync", "-Lrv", "--size-only", "--progress", "--delete",
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"#{td}/", destdir)
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print "cleaning up... "
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system("rm", "-rf", td)