Class: Boson::Runner

Inherits:
BareRunner show all
Defined in:
lib/boson/runner.rb

Overview

Defines a RunnerLibrary for use by executables as a simple way to map methods to subcommands

Direct Known Subclasses

DefaultCommandsRunner

Defined Under Namespace

Modules: CommandExtension, ScientistExtension

Constant Summary

Constants inherited from BareRunner

BareRunner::DEFAULT_LIBRARIES, BareRunner::GLOBAL_OPTIONS

Class Attribute Summary collapse

Class Method Summary collapse

Methods inherited from BareRunner

allowed_argument_error?, no_command_error, option_parser

Methods included from BareRunner::API

#abort_with, #all_libraries, #default_libraries, #init, #start

Class Attribute Details

.current ⇒ Object

Returns the value of attribute current.



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# File 'lib/boson/runner.rb', line 8

def current
  @current
end

Class Method Details

.abort_with(msg) ⇒ Object 



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# File 'lib/boson/runner.rb', line 61

def self.abort_with(msg)
  super "#{app_name}: #{msg}"
end

.app_name ⇒ Object 



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# File 'lib/boson/runner.rb', line 57

def self.app_name
  File.basename($0).split(' ').first
end

.default_libraries ⇒ Object 



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# File 'lib/boson/runner.rb', line 15

def self.default_libraries
  [self, DefaultCommandsRunner]
end

.display_command_help(cmd) ⇒ Object 



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# File 'lib/boson/runner.rb', line 40

def self.display_command_help(cmd)
  puts "Usage: #{app_name} #{cmd.name} #{cmd.basic_usage}".rstrip, ""
  if cmd.options
    puts "Options:"
    cmd.option_parser.print_usage_table(no_headers: true)
    puts ""
  end
  puts "Description:\n  #{cmd.desc || 'TODO'}"
end

.display_help ⇒ Object 



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# File 'lib/boson/runner.rb', line 50

def self.display_help
  commands = Boson.commands.sort_by(&:name).map {|c| [c.name, c.desc.to_s] }
  puts "Usage: #{app_name} [OPTIONS] COMMAND [ARGS]", "", "Available commands:",
    Util.format_table(commands), "", "Options:"
    option_parser.print_usage_table(no_headers: true)
end

.execute(command, args, options) ⇒ Object 



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# File 'lib/boson/runner.rb', line 29

def self.execute(command, args, options)
  options[:help] || command.nil? ? display_help :
    execute_command(command, args, options)
end

.execute_command(cmd, args, options) ⇒ Object 



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# File 'lib/boson/runner.rb', line 34

def self.execute_command(cmd, args, options)
  Command.find(cmd) ? super(cmd, args) : no_command_error(cmd)
rescue OptionParser::Error => err
  abort_with err.message
end

.inherited(mod) ⇒ Object 



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# File 'lib/boson/runner.rb', line 10

def self.inherited(mod)
  @help_added ||= add_command_help
  Inspector.enable all_classes: true, module: mod.singleton_class
end

.start(args = ARGV) ⇒ Object 



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# File 'lib/boson/runner.rb', line 19

def self.start(args=ARGV)
  Runner.current = self
  Boson.in_shell = true
  ENV['BOSONRC'] ||= ''
  super
  init
  command, options, args = parse_args(args)
  execute command, args, options
end