Class: Profitbricks::CLI

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(stdout = $stdout) ⇒ CLI

Returns a new instance of CLI.



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# File 'lib/profitbricks/cli.rb', line 8

def initialize(stdout = $stdout)
  @options = {:debug => false}
  @stdout = stdout
end

Instance Attribute Details

#stdout ⇒ Object

Returns the value of attribute stdout.



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# File 'lib/profitbricks/cli.rb', line 6

def stdout
  @stdout
end

Instance Method Details

#call_instance_method(klass, method, arguments) ⇒ Object 



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# File 'lib/profitbricks/cli.rb', line 90

def call_instance_method(klass, method, arguments)
  id = arguments.delete(:id)
  obj = klass.send(:find, {:id => id})
  call_method(obj, method, arguments)
end

#call_method(klass, method, arguments) ⇒ Object 



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# File 'lib/profitbricks/cli.rb', line 96

def call_method(klass, method, arguments)
   if arguments.length > 0
     klass.send(method, arguments)
   else
     klass.send(method)
  end
end

#call_singleton_method(klass, method, arguments) ⇒ Object 



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# File 'lib/profitbricks/cli.rb', line 86

def call_singleton_method(klass, method, arguments)
  call_method(klass, method, arguments)
end

#convert_arguments(options) ⇒ Object 



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# File 'lib/profitbricks/cli.rb', line 62

def convert_arguments(options)
  arguments = Hash[options[2..-1].collect { |x| 
    a = x.split('=');
    a[1] = a[1].to_i if a[1] =~ /^\d+$/
    [a[0].to_sym, a[1]]  
  }]
  [options[0], options[1], arguments]
end

#get_instance_method(klass, method) ⇒ Object 



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# File 'lib/profitbricks/cli.rb', line 78

def get_instance_method(klass, method)
  obj = klass.send(:new, {})
  methods = obj.public_methods(false)
  if methods.collect { |m| m.to_sym }.include?(method.to_sym)
    return obj.method(method)
  end
end

#get_singleton_method(klass, method) ⇒ Object 



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# File 'lib/profitbricks/cli.rb', line 71

def get_singleton_method(klass, method)
  methods = klass.singleton_methods(false)
  if methods.collect { |m| m.to_sym }.include?(method.to_sym)
    return klass.method(method.to_sym)
  end
end

#run(options) ⇒ Object 



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# File 'lib/profitbricks/cli.rb', line 13

def run(options)
  options = OptionParser.new do |opts|
    opts.banner = "Usage: profitbricks [options] <class> <method> argument=value argument2=value2 .."
    opts.separator ""
    opts.separator "You have to supply your Profitbricks user name and password in the environmental variables PROFITBRICKS_USER and PROFITBRICKS_PASSWORD"
    opts.separator ""
    opts.on("-d", "--debug", "Enable debugging output") do |d|
      @options[:debug] = d
    end
    opts.on_tail("-h", "--help", "Show this message") do
      @stdout.puts opts
      return -1
    end
    if !ENV['PROFITBRICKS_USER'] or !ENV['PROFITBRICKS_PASSWORD'] or options.length < 2
      @stdout.puts opts
      return -1
    end

  end.parse!(options)

  Profitbricks.configure do |config|
    config.username = ENV['PROFITBRICKS_USER']
    config.password = ENV['PROFITBRICKS_PASSWORD']
    config.log = @options[:debug]
  end
  
  (klass, m, arguments) = convert_arguments(options)

  begin
    klass = Profitbricks.get_class(klass)
  rescue LoadError
    @stdout.puts "Invalid class name #{klass}."
    return -1
  end
  
  if method = get_singleton_method(klass, m)
    dump = PP.pp(call_singleton_method(klass, m, arguments), "")
    @stdout.puts dump
  elsif method = get_instance_method(klass, m)
    dump = PP.pp(call_instance_method(klass, m, arguments), "")
    @stdout.puts dump
  else
    @stdout.puts "#{klass} has no method #{m}"
    return -1
  end
  return 0
end