Rails Apps Size Tests

Want to generate some quick stats for the size of your Rails app (and likely some of its problems)?

These are the queries I used to generate graphs for some big open-source Rails app for my 2014 RailsConf talk Refactoring towards Component-based Rails Architecture.

How many lines of Ruby do you have in your app?

find . -iname "*.rb" -type f -exec cat {} \; | wc -l

What are your biggest files?

find . -iname "*.rb" -type f -exec wc -l {} \; | sort -rn

Which classes have the most has_many relationships?

ack " has_many " -c | awk -F ":" '{print $2,$1}' | grep -v "0" | sort -rn