Today’s reason for an hour wasted on debugging: Ruby 2.0.0 enforces FD_CLOEXEC on file descriptors by default, need to pass --keep-file-descriptors to bundle exec to fix. What the hell? Apparently they were concerned about security. Okay, but doing that on interpreter level was super unexpected.

That’s what the hipsters call “Smalltalk inspired” nowadays…

nil.empty?  # NoMethodError: undefined method `empty?' for nil:NilClass

In Objective-C, any message to nil returns nil. In Ruby? Exception :-(