rename_db_migrate-utc.rb

require 'date'
require 'fileutils'
require 'rubygems'
gem 'activesupport', '=2.3.11'
require 'active_support'


file_count = 0
Dir::foreach('db/migrate') do |v|
  next if v == "." or v == ".." or v == ".svn"
  version, name = v.split('_', 2)
  begin
    file_count += 1 if version.to_i > 0
  rescue
  end
end


offset = file_count
Dir::foreach('db/migrate') do |v|
  next if v == "." or v == ".." or v == ".svn"
  version, name = v.split('_', 2)
  next if version.size != 3
  begin
    start_date = DateTime.now.ago(60 * 60 * 24 * offset)
    #p start_date
    # ex. '20080906120000'
    version_date = start_date.new_offset(0).strftime("%Y%m%d%H%m%S")
    filename = "#{version_date}_#{name}"
    p "#{v} -> #{filename}"
    File.rename("db/migrate/#{v}", "db/migrate/#{filename}")
    offset -= 1
    break if offset == 0
  end
end