Module: YamlToConstants

Defined in:
lib/yaml_to_constants.rb

Overview

1) Loads all files out of config/yaml_autoload/*/.yaml 2) Uses namespace based on file structure (overseer/blah.yaml) becomes

Configuration::Overseer::Blah

3) Only loads configuration for locale or generic configuration 4) Checks for environment names at top level for environment specific configuration

Constant Summary collapse

@@constants_created = 
Set.new
@@default_namespace = 
"Configuration"

Class Method Summary collapse

Class Method Details

.constant_from_file_path(file_path) ⇒ Object 



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# File 'lib/yaml_to_constants.rb', line 106

def constant_from_file_path(file_path)
  cst = file_path.gsub(directory_load_path, "").split(/\/|\./).compact
  [default_namespace, cst].flatten.reject{|k|
    k =~ /yaml/i
  }.map(&:classify).compress
end

.default_namespace ⇒ Object 



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# File 'lib/yaml_to_constants.rb', line 89

def default_namespace
  @@default_namespace
end

.directory_load_path ⇒ Object 



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# File 'lib/yaml_to_constants.rb', line 93

def directory_load_path
  @@directory_load_path
end

.directory_load_path=(directory_path) ⇒ Object 



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# File 'lib/yaml_to_constants.rb', line 66

def directory_load_path=(directory_path)
  @@directory_load_path = directory_path
end

.initilize_all_files ⇒ Object 



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# File 'lib/yaml_to_constants.rb', line 20

def initilize_all_files
  loaded_file_paths.each do |file_path|
    new_constant = constant_from_file_path(file_path)
    new_constant_full = new_constant.join('::')
    full_path = []
    new_constant.each do |const|
      full_path << const
      full_path_text = full_path.join("::")

      unless @@constants_created.include?(full_path_text)
        Kernel.eval("#{full_path_text} =  Module.new")
        @@constants_created.add(full_path_text)
      end
    end

    to_eval = ("#{new_constant_full} = YamlToConstants.methods_from_file('#{file_path}') ")
    puts to_eval
    Kernel.eval(to_eval)
    @@constants_created.add(new_constant_full)
  end
end

.load_configurations {|_self| ... } ⇒ Object

Configuration variables

Yields:

  • (_self)

Yield Parameters:



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# File 'lib/yaml_to_constants.rb', line 51

def load_configurations
  #reset defaults
  @@configuration_constants = nil
  @@loaded_file_paths = nil
  @@recursive = true
  #Clean any left over constants from previous setup
  purge!

  #Assign options
  yield self

  #Create new constants with yaml values
  initilize_all_files
end

.loaded_file_paths ⇒ Object

functional methods



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# File 'lib/yaml_to_constants.rb', line 12

def loaded_file_paths
  @@loaded_file_paths ||= begin
                            path = self.directory_load_path
                            path += "/**/*" if self.recursive?
                            Dir.glob(path).select { |fn| File.file?(fn) }
                          end
end

.methods_from_file(file_path) ⇒ Object 



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# File 'lib/yaml_to_constants.rb', line 102

def methods_from_file(file_path)
  RecursiveOpenStruct.new(parse_file(file_path), :recurse_over_arrays => true)
end

.namespace=(name_space) ⇒ Object 



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# File 'lib/yaml_to_constants.rb', line 74

def namespace=(name_space)
  name_space = if name_space.is_a?(String)
                 name_space.constantize = Module.new
               else
                 name_space
               end

  @@constants_created << name_space
  @@default_namespace = name_space
end

.parse_file(file_path) ⇒ Object

defined? Constant will check to see if it exists



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# File 'lib/yaml_to_constants.rb', line 98

def parse_file(file_path)
  Psych.load_file(file_path)
end

.purge! ⇒ Object 



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# File 'lib/yaml_to_constants.rb', line 42

def purge!
  puts "PURGE " <<  @@constants_created.inspect
  @@constants_created = Set.new
  #Purge all objects created from the system for reset
  #Need to figure this out
#     Object.send(:remove_const, "#{default_namespace}".to_sym) if defined?(default_namespace.to_sym)
end

.recursive=(bool) ⇒ Object 



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# File 'lib/yaml_to_constants.rb', line 70

def recursive=(bool)
  @@recursive = bool
end

.recursive? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/yaml_to_constants.rb', line 85

def recursive?
  @@recursive
end