Module: SSBase::CommandLine

Defined in:
lib/stack-service-base/command_line.rb

Constant Summary collapse

COMMANDS = 
{}

Class Method Summary collapse

Class Method Details

.run(args) ⇒ Object 



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# File 'lib/stack-service-base/command_line.rb', line 37

def run(args)
  params = {}

  a, extra = ARGV.join(' ').split( / -- /)
  ARGV.replace a.split if a
  ARGV << '-h' if ARGV.empty?

  OptionParser.new do |o|
    o.version = "#{StackServiceBase::VERSION}"

    usage = [
      'ssbase [options] COMMAND',
    ]
    o.banner = "Version: #{o.version}\nUsage:\n\t#{usage.join "\n\t"}"
    o.separator ''
    o.separator 'Commands:'
    COMMANDS.each { |name, cmd| o.separator "#{' ' * 5}#{name} -  #{[cmd.help].flatten.join "\n#{' ' * (5+4 + name.size)}" }" }

    o.separator ''
    o.separator 'Options:'

    COMMANDS.values.select{_1.options(o) if _1.respond_to? :options }

    o.on('-h', '--help') { puts o; exit }
    o.parse! args, into: params

    params.transform_keys!{_1.to_s.gsub('-','_').to_sym}

    command = args.shift || ''
    raise "Unknown command: #{command}" unless COMMANDS.key?(command.to_sym)

    COMMANDS[command.to_sym].run [], params, args, extra
  rescue => e
    puts e.message
    ENV['DEBUG'] ? raise : exit(1)
  end
end