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

ruby (2) rails (2)

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リンク内でRailsのプロジェクトのサイズや簡易な複雑さを出せるシェルコマンドがある。便利 source

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