rubocop_installer.rb

rubocop_installer.rb

lines = File.readlines('Gemfile.lock').grep(/rubocop/i)
pattern = /rubocop \((.*?)\)/
act_rubocop = lines.find{ |e| e =~ pattern }
rubocop_version = act_rubocop[pattern, 1]
installed_ones = {}

abort("Failed to install rubocop: #{rubocop_version}") unless system("gem install rubocop -v #{rubocop_version}")

lines.reject{|e| e == act_rubocop}.reject{|e| e =~ /rubocop \(/}.select{|e| e.index('(')}.each do |other|
  gem_name, version = other.split(/\s+/).reject(&:empty?)
  version = version.sub('(','').sub(')','')
  next if installed_ones.key?(gem_name)
  gem_ver = "#{gem_name} -v #{version}"
  puts "executing: #{gem_ver}"
  abort("Failed to install: #{gem_ver}") unless system("gem install #{gem_ver}")
  installed_ones[gem_name] = 1
end