A script to search Objective-C and Swift files which outputs the number of lines in each file. I've used this to determine areas of an application which violate the Single Responsibility Principle. Output quickly identifies the largest classes in a project.

SRPAnalyser.rb

# Dependencies: sudo gem install colorize
# Usage: ruby SRPAnalyser.rb --hide-acceptable <Path to search>

require 'colorize'

def displayFileWithNumberOfLines (file, lines, hideAcceptable)
	message = "#{file} has #{lines} lines."
	maxLines = 250
	acceptableLines = 150
	if lines > maxLines 
		puts message.red
	elsif lines > acceptableLines
		puts message.yellow
	elsif !hideAcceptable
		puts message.green
	end
end

directory = ARGV.last

hideAcceptable = false
ARGV.each do |a|
	if a == "--hide-acceptable"
		hideAcceptable = true
	end
end

filesString = `grep --include=*.swift --include=*.m --exclude-dir=*Tests --exclude-dir=*Spec --exclude-dir=Pods --exclude-dir=Carthage -rc '' #{directory}`
files = filesString.split("\n")

files.each do |file| 
	values = file.split(":")
	fileName = values[0].split("/").last
	displayFileWithNumberOfLines fileName, values[1].to_i, hideAcceptable
end