Updates gems. WIP

updater.rb

#!/usr/bin/env ruby

GEM_LINE_BEGINNING = "  * "

def git_commit(current_gem_name)
  puts "\tCommiting"
  system("git commit -am \"Auto updated: #{current_gem_name}\" &> /dev/null")
end

def git_reset
  system('git reset --hard &> /dev/null')
end

def gem_name_list
  puts "\tListing"
  outdated_raw = `bundle outdated`.split("\n")
  outdated_gems = outdated_raw.delete_if { |line| !line.start_with?(GEM_LINE_BEGINNING)}
  outdated_gems.map { |gem_line| gem_line.gsub(GEM_LINE_BEGINNING, '').split(" ")[0] }
end

def check_unit_tests(current_gem_name)
  print "\tRunning tests..."
  unless system('rake spec &> /dev/null')
    STDERR.puts("ERROR: Failed to update #{current_gem_name}! Tests were broken!")
    git_reset
    exit(1)
  else
    print "OK\n"
  end
end

puts "Prechecking the state:"
check_unit_tests("the whole application")
outdated_list = gem_name_list

puts "Running updates:"
current_package = 1
outdated_list.each do |gem_name|
  puts "\t#{current_package}/#{outdated_list.count} - Updating #{gem_name}"
  system("bundle update #{gem_name} &> /dev/null")
  check_unit_tests(gem_name)
  git_commit(gem_name)
  current_package = current_package + 1
end

puts "Post processing:"
remaing_outdated_list = gem_name_list

puts "\tThe following gems could not be updated:"
remaing_outdated_list.each do |gem_name|
  puts "\t\t#{gem_name}"
end