Class: PostRunner::RuntimeConfig

Inherits:
Object
  • Object
show all
Defined in:
lib/postrunner/RuntimeConfig.rb

Overview

Simple class to manage runtime configuration options which are persisted in a YAML file.

Instance Method Summary collapse

Constructor Details

#initialize(dir) ⇒ RuntimeConfig

Create a new RC object.

Parameters:

  • dir (String) —

    the directory to hold the config.yml file.



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# File 'lib/postrunner/RuntimeConfig.rb', line 25

def initialize(dir)
  create_directory(dir, 'application data')
  @options = {
    :version => '0.0.0',
    :unit_system => :metric,
    :import_dir => nil,
    :data_dir => dir,
    :html_dir => File.join(dir, 'html')
  }
  @config_file = File.join(dir, 'config.yml')

  load_options if File.exist?(@config_file)
end

Instance Method Details

#[](name) ⇒ Object

Shortcut for get_option.

Parameters:

  • name (Symbol) —

    the name of the config option.

Returns:

  • (Object) —

    the value of the config option.



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# File 'lib/postrunner/RuntimeConfig.rb', line 42

def [](name)
  get_option(name)
end

#create_directory(dir, name) ⇒ Object

Ensure that the requested directory exists.



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# File 'lib/postrunner/RuntimeConfig.rb', line 62

def create_directory(dir, name)
  return if Dir.exists?(dir)

  Log.info "Creating #{name} directory #{dir}"
  begin
    Dir.mkdir(dir)
  rescue StandardError
    Log.fatal "Cannot create #{name} directory #{dir}: #{$!}"
  end
end

#get_option(name) ⇒ Object

Get a config option value.

Parameters:

  • name (Symbol) —

    the name of the config option.

Returns:

  • (Object) —

    the value of the config option.



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# File 'lib/postrunner/RuntimeConfig.rb', line 49

def get_option(name)
  @options[name]
end

#set_option(name, value) ⇒ Object

Set a config option and update the RC file.

Parameters:

  • name (Symbol) —

    The name of the config option.

  • value (Object) —

    The value of the config option.



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# File 'lib/postrunner/RuntimeConfig.rb', line 56

def set_option(name, value)
  @options[name] = value
  save_options
end