#!/usr/bin/env ruby

# Convenience command to revert effects of the last run of
# script/upgrade_to or script/upgrade_to_next_version.
#
# NOTE: only reverts to state before last upgrade. So if you upgrade
# several versions in one go, reverting will only jump you back one
# version, not to the original you started from.


def restore_db
  require 'yaml'
  conf = YAML::load(File.open('config/database.yml'))
  db_name = conf['production']['database']
  puts `mysql #{db_name} < /tmp/upgrade_db_backup.sql`
end

def restore_working_directory
  puts `tar -xf /tmp/upgrade_working_dir_backup.tar`
end

puts "Attempting to undo last attempted upgrade..."
puts "Restoring database..."
restore_db
puts "Restoring contents of this directory..."
restore_working_directory
puts "Done undoing last upgrade. Please test and verify your Gitorious site."