Amazon S3 with Ruby aws-s3 gem

I stated using Amazon S3 to store and backup the music I've written and recorded. I'm using the Ruby aws-s3 gem. Note that I check for some basic audio file types so I don't have to manually type the bucket or mime-type.

aws-s3.rb
---------
#!/usr/bin/env ruby
require 'rubygems'
require 'aws/s3'

# File to upload
local_file = ARGV[0]

# bucket & mime-type
if local_file =~ /mp3$/
  bucket = 'doug_mp3'
  mime_type = 'audio/mpeg'
elsif local_file =~ /wav$/
  bucket = 'doug_wav'
  mime_type = 'audio/x-wav'
elsif local_file =~ /aif[c|f]?$/
  bucket = 'doug_aiff'
  mime_type = 'audio/x-aiff'
else
  bucket = ARGV[1]
  mime_type = ARGV[2] || "application/octet-stream"
end 

if bucket.nil?
  puts "need a bucket"
  exit
end

puts "file: #{local_file}"
puts "bucket: #{bucket}"
puts "mime_type: #{mime_type}"

AWS::S3::Base.establish_connection!(
  :access_key_id     => 'REPLACE_ME',
  :secret_access_key => 'REPLACE_ME'
)

base_name = File.basename(local_file)
 
puts "Uploading #{local_file} as '#{base_name}' to '#{bucket}'"

AWS::S3::S3Object.store(
  base_name,
  File.open(local_file),
  bucket,
  :content_type => mime_type
)
 
puts "Uploaded!"

I can call the script a couple ways:

# with defaults based on extension
$ ruby aws-s3.rb mysong.mp3

# or explicitly (file, bucket, mime-type)
$ ruby aws-s3.rb mysong.mp3 doug_mp3 'audio/mp3'

ruby-mp3info

I have an old SanDisk mp3 player that I use to listen to music and podcasts. Though it's a rather small card (512M), it's still annoying to have to scroll through my single playlist to get to a specific file.

The SanDisk sorts by the mp3 info title tag, so I wrote a small script that I run on my podcast files before I load them on my player so that they will show up first in the playlist by prepending '01_' to the mp3 title tag (and using the mp3 filename if the title is nil).

First, install the ruby-mp3info gem if you don't have it:

gem install ruby-mp3info

edit_mp3info_title.rb

require 'rubygems'
require "mp3info"

dir = Dir.open('/Users/dsparlingimbp/PODCAST/mp3')
puts "mp3 directory: #{dir.path}"

dir.each do |file|
  next unless /\.mp3$/ =~ file
  puts "mp3: #{file}"

  mp3file = "#{dir.path}/#{file}"

  Mp3Info.open(mp3file) do |mp3|
    puts "original title: #{mp3.tag.title}"
    title = '01_' + (mp3.tag.title || file)
    mp3.tag.title = title
    puts "new title: #{mp3.tag.title}"
  end

end