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1# This is a quick script for doing a mass rename of all files in an Amazon S3 bucket.
2# In this case, the rename operation was to unescape all filenames which had been 
3# previously escaped in error.
4
5#############################
6# Configuration: 
7
8bucketname = "YOUR_S3_BUCKET_NAME"
9access_key = 'YOUR_ACCESS_KEY_ID'
10secret_key = 'YOUR_SECRET_ACCESS_KEY'
11
12#############################
13
14require 'rubygems'
15require 'aws/s3'
16include AWS::S3
17
18Base.establish_connection!(
19      :access_key_id     => access_key,
20      :secret_access_key => secret_key
21    )
22
23b = Bucket.find(bucketname)
24marker = ''
25while b.size > 0 do
26  puts "\n\n--------------------new page----------------------"
27  puts "\n From marker #{marker}"
28  puts "\n\n--------------------------------------------------"
29  b.each {|s3o| 
30    if s3o.key =~ /\.m4a/i
31      begin
32        old_key = s3o.key
33        new_key = s3o.key.gsub(/\.m4a/i, '.mp4')
34
35        S3Object.copy(old_key, new_key, bucketname)
36        puts "copied #{old_key} to #{new_key}"
37
38        #Uncomment this if you're feeling confident and want to delete the key
39        #s3o.delete
40      rescue Exception => e
41        puts "\n\n @@@@@@@@@@@@ EXCEPTION on key #{s3o.key} \n\n"
42        puts e.message
43        puts "@@@@@@@@@@@@@@}"
44        next
45      end
46      
47    end
48  }
49  marker = b.objects.last.key
50  b = Bucket.find('presslift', {:marker => marker})
51end