I\'d like to copy some files from a production bucket to a development bucket daily.
For example: Copy productionbucket/feed/feedname/date to developmentbucket/feed/
We had this exact problem with our ETL jobs at Snowplow, so we extracted our parallel file-copy code (Ruby, built on top of Fog), into its own Ruby gem, called Sluice:
https://github.com/snowplow/sluice
Sluice also handles S3 file delete, move and download; all parallelised and with automatic re-try if an operation fails (which it does surprisingly often). I hope it's useful!