Class: Tap::Exe

Inherits:
Env show all
Defined in:
lib/tap/exe.rb

Constant Summary collapse

GLOBAL_CONFIG_FILE =

The global config file path

File.join(Gem.user_home, ".tap.yml")

Constants inherited from Env

Tap::Env::DEFAULT_CONFIG_FILE, Tap::Env::TEMPLATES

Instance Attribute Summary

Attributes inherited from Env

#logger, #root

Attributes included from Support::Configurable

#config

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Env

#activate, #active?, #count, #deactivate, #each, #env_path, #envs, #envs=, gemspecs, #initialize, #inspect, instance, instances, #log, manifest, pathify, #push, #reconfigure, #recursive_each, #recursive_inspect, #reverse_each, #search_path, #summarize, #unshift

Methods included from Support::Minimap

#minimap, #minimatch

Methods included from Support::Configurable

included, #initialize_copy, #reconfigure

Constructor Details

This class inherits a constructor from Tap::Env

Class Method Details

.instance_for(path) ⇒ Object 



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# File 'lib/tap/exe.rb', line 27

def instance_for(path)
  path = pathify(path)
  instances.has_key?(path) ? instances[path] : Env.instantiate(path)
end

.instantiate(path = Dir.pwd, logger = Tap::App::DEFAULT_LOGGER, &block) ⇒ Object 



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# File 'lib/tap/exe.rb', line 9

def instantiate(path=Dir.pwd, logger=Tap::App::DEFAULT_LOGGER, &block)
  app = Tap::App.instance = Tap::App.new({:root => path}, logger)
  exe = super(app, load_config(GLOBAL_CONFIG_FILE), app.logger, &block)
  
  # add all gems if no gems are specified (Note this is VERY SLOW ~ 1/3 the overhead for tap)
  if !File.exists?(Tap::Env::DEFAULT_CONFIG_FILE)
    exe.gems = gemspecs(false)
  end
  
  # add the default tap instance
  tap = instance_for("#{File.dirname(__FILE__)}/../..")
  # tap.tasks.paths = tap.root.glob(:lib, "tap/tasks/*").collect do |task_path|
  #   [tap.root[:lib], task_path]
  # end
  exe.push(tap)
  exe
end

Instance Method Details

#app ⇒ Object

Alias for root (Exe should have a Tap::App as root)



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# File 'lib/tap/exe.rb', line 41

def app
  root
end

#build(argv = ARGV) ⇒ Object 



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# File 'lib/tap/exe.rb', line 76

def build(argv=ARGV)
  schema = argv.kind_of?(Support::Schema) ? argv : Support::Schema.parse(argv)
  schema.compact.build(app) do |args|
    task = args.shift
    const = tasks.search(task) 
    
    task_class = case
    when const then const.constantize 
    when block_given?
      args.unshift(task)
      yield(args)
    else nil
    end
    
    task_class or raise ArgumentError, "unknown task: #{task}"
    task_class.parse(args, app) do |help|
      puts help
      exit
    end
  end
end

#execute(argv = ARGV) ⇒ Object 



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# File 'lib/tap/exe.rb', line 55

def execute(argv=ARGV)
  command = argv.shift.to_s
  
  if aliases && aliases.has_key?(command)
    aliases[command].reverse_each {|arg| argv.unshift(arg)}
    command = argv.shift
  end

  case command  
  when '', '--help'
    yield
  else
    if path = commands.search(command)
      load path # run the command, if it exists
    else
      puts "Unknown command: '#{command}'"
      puts "Type 'tap help' for usage information."
    end
  end
end

#handle_error(err) ⇒ Object 



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# File 'lib/tap/exe.rb', line 45

def handle_error(err)
  case
  when $DEBUG
    puts err.message
    puts
    puts err.backtrace
  else puts err.message
  end
end

#run(queues) ⇒ Object 



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# File 'lib/tap/exe.rb', line 135

def run(queues)
  queues.each_with_index do |queue, i|
    app.queue.concat(queue)
    app.run
  end
end

#set_signals ⇒ Object 



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# File 'lib/tap/exe.rb', line 98

def set_signals
  # info signal -- Note: some systems do 
  # not support the INFO signal 
  # (windows, fedora, at least)
  signals = Signal.list.keys
  if signals.include?("INFO")
    Signal.trap("INFO") do
      puts app.info
    end
  end

  # interuption signal
  if signals.include?("INT")
    Signal.trap("INT") do
      puts " interrupted!"
      # prompt for decision
      while true
        print "stop, terminate, exit, or resume? (s/t/e/r):"
        case gets.strip
        when /s(top)?/i 
          app.stop
          break
        when /t(erminate)?/i 
          app.terminate
          break
        when /e(xit)?/i 
          exit
        when /r(esume)?/i 
          break
        else
          puts "unexpected response..."
        end
      end
    end
  end
end