Class: AutomateIt::CLI

Inherits:
Common show all
Defined in:
lib/automateit/cli.rb

Overview

CLI

The CLI class provides AutomateIt’s command-line interface. It’s responsible for invoking recipes from the command line, starting the interactive shell and creating projects. It’s run from bin/automate.

Constant Summary

Constants included from Constants

AutomateIt::Constants::HELPERS_DIR, AutomateIt::Constants::INSTALL_DIR, AutomateIt::Constants::PERROR, AutomateIt::Constants::PEXEC, AutomateIt::Constants::PNOTE, AutomateIt::Constants::WARNING_BOILERPLATE

Instance Attribute Summary

Attributes inherited from Common

#interpreter

Class Method Summary collapse

Methods inherited from Common

#initialize, #log, #nitpick, #noop, #noop=, #noop?, #preview, #preview=, #preview?, #preview_for, #setup, #superuser?, #writing, #writing=, #writing?

Constructor Details

This class inherits a constructor from AutomateIt::Common

Class Method Details

.run(*a) ⇒ Object

Create a new CLI interpreter. If no :recipe or :eval option is provided, it starts an interactive IRB session for the Interpreter.

Examples:

AutomateIt::CLI.run("myrecipe.rb")
AutomateIt::CLI.run(:recipe => "myrecipe.rb")
AutomateIt::CLI.run(:eval => "42")

Options:

  • :tags – Array of tags to add for this run.

  • :project – Project directory to load.

  • :recipe – Recipe file to execute.

  • :eval – Evaluate this string.

  • :quiet – Don’t print shell header.



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# File 'lib/automateit/cli.rb', line 23

def self.run(*a)
  args, opts = args_and_opts(*a)
  recipe = args.first || opts[:recipe]
  if recipe and not opts[:project]
    opts[:project] = File.join(File.dirname(recipe), "..")
    opts[:guessed_project] = true
  end

  opts[:verbosity] ||= Logger::INFO

  if opts[:create]
    Project::create(opts)
  elsif code = opts.delete(:eval)
    interpreter = AutomateIt.new(opts)
    interpreter.instance_eval(code)
  elsif recipe
    AutomateIt.invoke(recipe, opts)
  else
    # Welcome messages
    display = lambda{|msg| puts msg if opts[:verbosity] <= Logger::INFO}
    display.call PNOTE+"AutomateIt Shell v#{AutomateIt::VERSION} #{$0}"

    # Create and connect instances
    require "irb"
    IRB.setup(__FILE__)
    # XXX irb: warn: can't alias context from irb_context.
    irb = IRB::Irb.new
    opts[:irb] = irb
    IRB.conf[:MAIN_CONTEXT] = irb.context
    interpreter = AutomateIt.new(opts)
    irb.context.workspace.instance_variable_set(:@binding, interpreter.send(:binding))

    # Tab completion
    message = "<CTRL-D> to quit"
    begin
      require 'irb/completion'
      irb.context.auto_indent_mode = true
      irb.context.load_modules << 'irb/completion' unless irb.context.load_modules.include?('irb/completion')
      irb.context.instance_eval{ @use_readline = true }
      message << ", <Tab> to auto-complete"
    rescue LoadError
      # Ignore
    end
    display.call PNOTE+message

    # Set prompt
    unless opts[:custom_prompt] == false
      irb.context.prompt_i = "ai> "
      irb.context.prompt_s = "ai%l "
      irb.context.prompt_c = "ai* "
      begin
        irb.context.prompt_n = "ai%i " 
      rescue NoMethodError
        # Not available on Ruby 1.8.2 bundled with Mac OS X 10.4 Tiger
      end
    end

    # Run loop to read user input
    irb.eval_input
  end
end