1  class TaskSupport
   2    class << self
   3      def establish_connection
   4        unless ActiveRecord::Base.connected?
   5          connection_hash = YAML.load_file("#{Rails.root}/config/database.yml").to_hash
   6          env_connection = connection_hash[RAILS_ENV]
   7          ActiveRecord::Base.establish_connection(env_connection)
   8        end
   9      end
  10      def config_export(path = "#{Rails.root}/config/radiant_config.yml")
  11        self.establish_connection
  12        FileUtils.mkdir_p(File.dirname(path))
  13        if File.open(File.expand_path(path), 'w') { |f| YAML.dump(Radiant::Config.to_hash.to_yaml,f) }
  14          puts "Radiant::Config saved to #{path}"
  15        end
  16      end
  17      def config_import(path = "#{Rails.root}/config/radiant_config.yml", clear = nil)
  18        self.establish_connection
  19        if File.exist?(path)
  20          begin
  21            Radiant::Config.transaction do
  22              Radiant::Config.delete_all if clear
  23              configs = YAML.load(YAML.load_file(path))
  24              configs.each do |key, value|
  25                c = Radiant::Config.find_or_initialize_by_key(key)
  26                c.value = value
  27                c.save
  28              end
  29            end
  30            puts "Radiant::Config updated from #{path}"
  31          rescue ActiveRecord::RecordInvalid => e
  32            puts "IMPORT FAILED and rolled back. #{e}"
  33          end
  34        else
  35          puts "No file exists at #{path}"
  36        end
  37      end
  38 
  39      # Write the combined content of files in dir into cache_file in the same dir.
  40      #
  41      def cache_files(dir, files, cache_file)
  42        cache_content = files.collect { |f|
  43          File.read(File.join(dir, f)) }.join("\n\n")
  44 
  45        cache_path = File.join(dir, cache_file)
  46        File.delete(cache_path) if File.exists?(cache_path)
  47        File.open(cache_path, "w+") { |f| f.write(cache_content) }
  48      end
  49 
  50      # Reads through the layout file and returns an array of JS filenames
  51      #
  52      def find_admin_js
  53        layout = "#{RADIANT_ROOT}/app/views/layouts/application.html.haml"
  54        js_regexp = /javascript_include_tag %w\((.*)\), :cache => 'admin\/all/
  55        files = File.open(layout) { |f| f.read.match(js_regexp)[1].split }
  56        files.collect { |f| f.split('/').last + '.js' }
  57      end
  58 
  59      def cache_admin_js
  60        dir = "#{Rails.root}/public/javascripts/admin"
  61        cache_files(dir, find_admin_js, 'all.js')
  62      end
  63    end
  64  end