Class: Fum::Application

Inherits:
Object
  • Object
show all
Includes:
CommandManager
Defined in:
lib/fum/application.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from CommandManager

#commands, included, #initialize, #parse_command_options, #run_command

Instance Attribute Details

#main_decl ⇒ Object

Returns the value of attribute main_decl.



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# File 'lib/fum/application.rb', line 18

def main_decl
  @main_decl
end

Instance Method Details

#load_credentials ⇒ Object 



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# File 'lib/fum/application.rb', line 99

def load_credentials
  require 'yaml'

  config_file = File.expand_path('~/.fum')

  options = YAML.load(File.read(config_file))

  # Convert to symbols
  options.each { |key, value|
    options.delete(key)
    options[key.to_sym] = value
  }
  options
end

#load_file(filename) ⇒ Object 



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# File 'lib/fum/application.rb', line 95

def load_file(filename)
  Fum::Lang::FumFile.load(filename)
end

#process_command_line ⇒ Object 



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# File 'lib/fum/application.rb', line 52

def process_command_line
  #global_options = Trollop::options do

  sub_commands = commands.keys.map { |c| c.to_s }

  parser = Trollop::Parser.new do
    version "fum #{VERSION}"
    banner <<-EOS
usage: fum <filename> [options] <command> [command-options]

Commands are (use --help after command to see additional usage):
  launch
  list

where [options] are:
    EOS

    opt :credentials, "File containing AWS credentials to use", :type => :string
    opt :noop, "Do nothing, print steps to be executed.", :default => false
    opt :verbose, "Print verbose output.", :default => false
    stop_on sub_commands #commands.keys.map { |c| c.to_s }
  end

  global_options = Trollop::with_standard_exception_handling parser do
    o = parser.parse ARGV
    raise Trollop::HelpNeeded if ARGV.empty?
    @filename = ARGV.shift
    raise Trollop::HelpNeeded if ARGV.empty?
    @command_name = ARGV.shift
    o
  end

  config = load_credentials

  Fog.credentials = {
      :aws_access_key_id => config[:access_key_id],
      :aws_secret_access_key => config[:secret_access_key]
  }

  global_options
end

#start ⇒ Object 



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# File 'lib/fum/application.rb', line 29

def start
  global_options = process_command_line

  @beanstalk = Fog::AWS[:beanstalk]

  command = commands[@command_name.to_sym]

  if global_options[:verbose]
    puts "Loading definition file #{@filename}"
  end

  @main_decl = load_file(@filename)

  if command
    options = parse_command_options(@command_name.to_sym)
    options.merge!(global_options)
    run_command(@command_name.to_sym, options)
  else
    parser.die "Unknown command '#{@command_name}'", nil
  end

end