Dominic Simm

Limit the size of Rails 3 log files

Log files can get really huge. Luckily, it's easy to automatically rotate your log files in dev/test for a Rails 3 app (>=3.1.1). Add to your .gitignore:


And to your config/development.rb and config/test.rb:

# auto rotate log files, keep 2 of 5MB each
require 'active_support/core_ext/numeric/bytes'
config.logger =['log'].first, 1, 5.megabytes)

You can adjust the number of logs and size according to your needs, but this is a good start. If you get an error because of the 5.megabytes, just put "5242880" instead.