use schema to regenerate migrations

schema = File.read('/home/jinzhu/GIT/joblet/db/schema.rb')

schema.scan(/(^\s*create_table.*?)(?=\n\s*create_table)/m).map do |x|
  content  = x[0]
  content  =~ /create_table\s+"(.*?)"/
  filename = Time.now.utc.strftime("%Y%m%d%H%M%S") + '_create_' + $1 + '.rb'
  filename = File.join('/home/jinzhu/GIT/joblet/db/migrate',filename)


  content = "class Create" + $1.capitalize.gsub(/_(\w)/) { $1.to_s.upcase } + " < ActiveRecord::Migration\n  def self.up\n" + content.sub(/\A\s*\n/,'') + "\n  end\n\n  def self.down\n  end\nend"
  puts content

  f = File.new(filename,'w+')
  f << content
  f.close

  # `vim #{filename} --cmd 'Rinvert' --cmd 'x'`
end