Class: AnyCable::CLI

Inherits:
Object
  • Object
show all
Defined in:
lib/anycable/cli.rb

Overview

Command-line interface for running AnyCable gRPC server rubocop:disable Metrics/ClassLength

Constant Summary collapse

APP_CANDIDATES =

(not-so-big) List of common boot files for different applications

%w[
  ./config/anycable.rb
  ./config/environment.rb
].freeze
WAIT_PROCESS =

Wait for external process termination (s)

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Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#health_server ⇒ Object (readonly)

Returns the value of attribute health_server.



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# File 'lib/anycable/cli.rb', line 23

def health_server
  @health_server
end

#server ⇒ Object (readonly)

Returns the value of attribute server.



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# File 'lib/anycable/cli.rb', line 23

def server
  @server
end

Instance Method Details

#run(args) ⇒ Object

rubocop:disable Metrics/AbcSize, Metrics/MethodLength



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# File 'lib/anycable/cli.rb', line 26

def run(args)
  @at_stop = []

  extra_options = parse_cli_options!(args)

  # Boot app first, 'cause it might change
  # configuration, loggin settings, etc.
  boot_app!

  parse_gem_options!(extra_options)

  logger.info "Starting AnyCable gRPC server (pid: #{Process.pid})"

  print_versions!

  logger.info "Serving #{defined?(::Rails) ? 'Rails ' : ''}application from #{boot_file}"

  configure_server!

  verify_connection_factory!

  log_grpc! if config.log_grpc

  log_errors!

  @server = AnyCable::Server.new(
    host: config.rpc_host,
    **config.to_grpc_params,
    interceptors: AnyCable.middleware.to_a
  )

  # Make sure middlewares are not adding after server has started
  AnyCable.middleware.freeze

  start_health_server! if config.http_health_port_provided?
  start_pubsub!

  server.start

  run_custom_server_command! unless server_command.nil?

  begin
    wait_till_terminated
  rescue Interrupt => e
    logger.info "Stopping... #{e.message}"

    shutdown

    logger.info "Stopped. Good-bye!"
    exit(0)
  end
end

#shutdown ⇒ Object

rubocop:enable Metrics/AbcSize, Metrics/MethodLength



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# File 'lib/anycable/cli.rb', line 80

def shutdown
  at_stop.each(&:call)
  server.stop
end