loc_history.rb

#!/usr/bin/env ruby
require 'FileUtils'
require 'json'
require 'date'


Dir.chdir('ios-client') do
  system("git checkout develop")
  # Collect the commits
  commit_list = []
  result = []
  dates = []
  200.downto(1) { |i| 
    sha1 = %x[git rev-list -n 1 --before='#{i} weeks ago' develop]
    date = %x[git show -s --format=%ci #{sha1}]
    date = Date.parse(date)
    commit_list << {SHA1: sha1, DATE: date.strftime("%d/%m/%Y") }
  }

  # Collect the CLOC
  commit_list.each do | commit |
    system("git checkout #{commit[:SHA1]}")
    output = %x[cloc --fullpath --not-match-d="(vendor|ci-dependencies|Pods|DerivedData|Documentation|fastlane,lib,Provisioning,Screenshots)" --include-lang="Swift,Objective C"  --json --ignore-whitespace --quiet .]
    hash = JSON.parse(output) 
    objc  = hash["Objective C"]["code"]
    swift = 0
    unless hash["Swift"].nil? 
      swift = hash["Swift"]["code"]
    end
    
    result << "#{commit[:SHA1].strip!},#{commit[:DATE]},#{objc},#{swift}"
  end

  puts result
  
end