Module: RidleyExec::Configuration

Defined in:
lib/ridley-exec/configuration.rb

Class Method Summary collapse

Class Method Details

.api_from_knife(path) ⇒ Object 



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# File 'lib/ridley-exec/configuration.rb', line 85

def self.api_from_knife(path)
  args = []
  args << path unless path.nil?
  Ridley.from_chef_config(*args)
end

.api_from_options(options) ⇒ Object 



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# File 'lib/ridley-exec/configuration.rb', line 91

def self.api_from_options(options)
  Ridley.new(options)
end

.env_default(name, default, opt = {}) ⇒ Object 



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# File 'lib/ridley-exec/configuration.rb', line 7

def self.env_default(name, default, opt={})
  val = ENV[name.to_s]
  return default if val.nil? || (val.size == 0 && opt[:no_blank])
  if block_given?
    val = yield val
  end

  val
end

.parse_args(args) ⇒ Object 



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# File 'lib/ridley-exec/configuration.rb', line 18

def self.parse_args(args)
  options = {}
  opt_parser = OptionParser.new do |opts|
    opts.banner = "Usage: ridley-exec [options]"

    opts.separator ""
    opts.separator "Specific options:"

    options[:server_url] = env_default(:CHEF_SERVER_URL, nil, :no_blank => true)
    opts.on('-u [URL]', '--server-url [URL]', String, "The URL of the chef server to query") do |url|
      options[:server_url] = url
    end


    options[:client_name] = env_default(:CHEF_CLIENT_NAME, nil, :no_blank => true)
    opts.on('-n [CLIENT_NAME]', '--client-name [CLIENT_NAME]', String, "The name of the client to use for chef API operations.") do |client|
      options[:client_name] = client
    end


    options[:client_key] = env_default(:CHEF_CLIENT_KEY, nil, :no_blank => true)
    opts.on('-k [CLIENT_KEY]', '--client-key [CLIENT_KEY]', String, "The path to the client key file used for chef API operations.") do |key|
      options[:client_key] = key
    end

    options[:encrypted_data_bag_secret] = env_default(:CHEF_ENCRYPTED_DATA_BAG_SECRET, nil, :no_blank => true)
    opts.on('-s [SECRET]', '--encrypted-data-bag-secret [SECRET]', String, "The secret string for encrypting data bags.") do |secret|
      options[:encrypted_data_bag_secret] = secret
    end

    options[:knife_path] = env_default(:CHEF_KNIFE_PATH, nil)
    opts.on('-p [KNIFE_PATH]', '--knife-path [KNIFE_PATH]', String, "Path to the knife.rb file to use for config (empty string does search)") do |path|
      path = '' if path.nil?
      options[:knife_path] = path
    end

    opts.on('-e [SCRIPT_STRING]', String, 'Execute the ruby in SCRIPT_STRING') do |script|
      options[:target] = prepare_script_string(script)
    end

    opts.on('-I', 'Execute the ruby from STDIN.') do
      options[:target] = prepare_stdin_script
    end

    opts.on('--pry', 'Run pry REPL with api in context') do
      options[:target] = prepare_pry_session
    end

    opts.separator ""
    opts.separator "Common options:"
    opts.on_tail("-h", "--help", "Show this help message.") do
      puts opts
      exit 0
    end

    opts.on_tail("-v", "--version", "Print the version.") do
      puts RidleyExec::VERSION
      exit 0
    end
  end

  # Stops on first non-option param
  non_param = []
  args = opt_parser.order(args) {|p| non_param << p; opt_parser.terminate}
  [options, non_param + args]
end

.prepare_pry_session ⇒ Object 



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# File 'lib/ridley-exec/configuration.rb', line 114

def self.prepare_pry_session
  Proc.new do |scope|
    require "pry"
    scope.pry
  end
end

.prepare_script(path) ⇒ Object 



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# File 'lib/ridley-exec/configuration.rb', line 96

def self.prepare_script(path)
  Proc.new do |scope|
    eval File.read(path), scope, path
  end
end

.prepare_script_string(script) ⇒ Object 



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# File 'lib/ridley-exec/configuration.rb', line 108

def self.prepare_script_string(script)
  Proc.new do |scope|
    eval script, scope, '-'
  end
end

.prepare_stdin_script ⇒ Object 



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# File 'lib/ridley-exec/configuration.rb', line 102

def self.prepare_stdin_script
  Proc.new do |scope|
    eval STDIN.read, scope, '-stdin-'
  end
end

.resolve_args(args) ⇒ Object 



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# File 'lib/ridley-exec/configuration.rb', line 121

def self.resolve_args(args)
  options, remaining = parse_args(args)
  options = options.inject({}) do |a, kv|
    a[kv[0]] = kv[1] unless kv[1].nil?
    a
  end

  if options.has_key? :target
    target = options.delete(:target)
  else
    target = prepare_script(remaining.shift)
  end

  if options.has_key? :knife_path
    api = api_from_knife(options[:knife_path])
  else
    api = api_from_options(options)
  end

  [api, target, remaining]
end