Class: Entitlements::Cli

Inherits:
Object
  • Object
show all
Includes:
Contracts::Core
Defined in:
lib/entitlements/cli.rb

Constant Summary collapse

C = 
::Contracts

Class Method Summary collapse

Methods included from Contracts::Core

common, extended, included

Class Method Details

.initialize_options ⇒ Object 



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# File 'lib/entitlements/cli.rb', line 82

def self.initialize_options
  Optimist.options do
    banner <<-EOS
    Configure authentication providers to look like the configuration declared in the files.

    Usage:

    $ deploy-entitlements --dir /path/to/configurations
    .
  EOS
    opt :"config-file",
        "Configuration file for application",
        type: :string,
        default: File.expand_path("../../config/entitlements/config.yaml", File.dirname(__FILE__))
    opt :noop,
        "no-op mode (do not actually apply configurations)",
        type: :boolean, default: false
    opt :full,
        "full deployment (skip predictive updates, if configured)",
        type: :boolean, default: false
    opt :debug,
        "debug messages enabled",
        type: :boolean, default: false
  end
end

.options ⇒ Object 



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# File 'lib/entitlements/cli.rb', line 66

def self.options
  @options ||= begin
    o = initialize_options
    validate_options!(o)
    o
  end
end

.run ⇒ Object 



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# File 'lib/entitlements/cli.rb', line 17

def self.run
  # Establish the logger object. Debugging is enabled or disabled based on options.
  logger = Logger.new(STDERR)
  logger.level = options[:debug] ? Logger::DEBUG : Logger::INFO
  Entitlements.set_logger(logger)

  # Set up configuration file.
  Entitlements.config_file = options[:"config-file"]
  Entitlements.validate_configuration_file!

  # Support predictive updates based on the environment, but allow the --full option to
  # suppress setting and using it.
  if ENV["ENTITLEMENTS_PREDICTIVE_STATE_DIR"] && !@options[:full]
    Entitlements::Data::Groups::Cached.load_caches(ENV["ENTITLEMENTS_PREDICTIVE_STATE_DIR"])
  end

  # Calculate differences.
  actions = Entitlements.calculate

  # No-op mode exits here.
  if @options[:noop]
    logger.info "No-op mode is set. Would make #{Entitlements.cache[:change_count]} change(s)."
    return 0
  end

  # No changes?
  if actions.empty?
    logger.info "No changes to be made. You're all set, friend! :sparkles:"
    return 0
  end

  # Execute the changes. This raises if it fails to apply a change or if auditors fail.
  Entitlements.execute(actions: actions)

  # Done.
  logger.info "Successfully applied #{Entitlements.cache[:change_count]} change(s)!"
  0
ensure
  Entitlements.close_statsd
end

.validate_options!(options) ⇒ Object 



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# File 'lib/entitlements/cli.rb', line 116

def self.validate_options!(options)
  unless options[:"config-file"].is_a?(String) && File.file?(options[:"config-file"])
    raise ArgumentError, "Expected --config-file to be a valid file!"
  end
end