refinery-update-core

#!/usr/bin/env ruby
require 'fileutils'
REFINERY_ROOT = File.expand_path(File.dirname(__FILE__) << "/..")
RAILS_ROOT = ARGV.first unless defined? RAILS_ROOT
unless RAILS_ROOT.nil? or RAILS_ROOT.length == 0
  # ensure asset directories exist.
  dirs = [%w(public stylesheets), %w(public javascripts), %w(db migrate), %w(lib tasks)]
  FileUtils::makedirs dirs.map {|dir| File.join(RAILS_ROOT, dir) }
  
  # copy in the new assets.
  assets = [%w(public stylesheets refinery), %w(public javascripts refinery)]
	assets.each do |asset|
	  FileUtils::rm_rf File.join(RAILS_ROOT, asset), :secure => true # ensure the destination is clear.
	  FileUtils::cp_r File.join(REFINERY_ROOT, asset), File.join(RAILS_ROOT, asset) # copy the new assets into the project.
  end
  
  # copy in any new migrations.
  FileUtils::cp Dir[File.join(REFINERY_ROOT, %w(db migrate *.rb))], File.join(RAILS_ROOT, %w(db migrate))
  
  # copy any rake tasks from plugins to the main lib directory so they can be run.
  FileUtils::cp Dir[File.join(REFINERY_ROOT, %w(** tasks *.rake))], File.join(RAILS_ROOT, %w(lib tasks))
	
	# read in the config files
	app_config = File.open(File.join(RAILS_ROOT, %w(config environment.rb)), "r").read
	environment_updated = false
	
  # backup app's environment.rb
  unless (app_refinery_gems_section = app_config.scan(/(#===REFINERY REQUIRED GEMS===)([^#]*)(#===REFINERY END OF REQUIRED GEMS===)/).join("")).length == 0
    # read in the config file in the gem
  	refinery_config = File.open(File.join(REFINERY_ROOT, %w(config environment.rb)), "r").read
  	FileUtils.cp File.join(RAILS_ROOT, %w(config environment.rb)), File.join(RAILS_ROOT, %w(config environment.autobackupbyrefinery.rb))
  
    # write the new content into the file.
    File.open(File.join(RAILS_ROOT, %w(config environment.rb)), "w").puts(app_config.gsub!(
  	  app_refinery_gems_section, 
  	  refinery_config.scan(/(#===REFINERY REQUIRED GEMS===)([^#]*)(#===REFINERY END OF REQUIRED GEMS===)/).join("")
  	))
  	
  	environment_updated = true
	end
	
	unless ARGV.include?("--from-refinery-installer")
	  puts "---------"
	  puts "Copied new Refinery core assets."
	  if environment_updated
  	  puts "I've made a backup of your current config/environment.rb file as it has been updated with the latest Refinery RubyGem requirements."
  	  puts "The backup is located at config/environment.autobackupbyrefinery.rb incase you need it."
    end  
	  puts ""
	  puts "=== ACTION REQUIRED ==="
	  puts "Please run rake db:migrate to ensure your database is at the correct version."
	  puts "Please also run rake gems:install to ensure you have the currently specified gems." if environment_updated
	  
	  puts ""
  end
else
  unless ARGV.include?("--from-refinery-installer")
    puts "Please specify the path of the refinery project that you want to update, i.e. refinery-update-core /path/to/project"
  end
end