Class: Thrud

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

Direct Known Subclasses

Zeus::CLI

Defined Under Namespace

Classes: Task

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.desc(name, a) ⇒ Object 



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# File 'lib/thrud.rb', line 9

def self.desc(name, a)
  @desc = a
end

.long_desc(a) ⇒ Object 



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# File 'lib/thrud.rb', line 12

def self.long_desc(a)
  @long_desc = a
end

.map(a) ⇒ Object 



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# File 'lib/thrud.rb', line 28

def self.map(a)
  a.each do |aliases, target|
    aliases = [aliases] unless aliases.kind_of?(Array)
    aliases.each do |name|
      @tasks[name.to_s] = @tasks[target.to_s]
    end
  end
end

.method_added(m) ⇒ Object 



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# File 'lib/thrud.rb', line 20

def self.method_added(m)
  desc, long_desc, method_options = @desc, @long_desc, (@method_options||[])
  @desc, @long_desc, @method_options = nil, nil, nil

  @tasks ||= {}
  @tasks[m.to_s] = Task.new(m, desc, long_desc, method_options)
end

.method_option(*a) ⇒ Object 



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# File 'lib/thrud.rb', line 15

def self.method_option(*a)
  @method_options ||= []
  @method_options << a
end

.start ⇒ Object 



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# File 'lib/thrud.rb', line 78

def self.start
  taskname = ARGV.shift
  arguments = ARGV

  taskname ||= "help"

  unless task = @tasks[taskname.to_s]
    Zeus.ui.error "Could not find task \"#{taskname}\""
    exit 1
  end

  instance = new
  if instance.method(task.method_name).arity == 0 && arguments.any?
    Zeus.ui.error "\"#{task.method_name}\" was called incorrectly. Call as \"zeus #{task.method_name}\"."
    exit 1
  end
  instance.send(task.method_name, *arguments)
end

.task_for_name(name) ⇒ Object 



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# File 'lib/thrud.rb', line 37

def self.task_for_name(name)
  @tasks[name.to_s]
end

Instance Method Details

#help(taskname = nil) ⇒ Object 



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# File 'lib/thrud.rb', line 45

def help(taskname = nil)
  if taskname && task = task_for_name(taskname)
    arity = task.arity(self)
    Zeus.ui.info <<-BANNER
Usage:
zeus #{taskname} #{arity == -1 ? "[ARGS]" : ""}

Description:
#{task.long_desc || task.desc}
BANNER
  else
    # this is super non-generic. problem for future-burke.
    project_tasks = self.class.instance_variable_get("@tasks").
      reject{|k,v|['definition_file', 'initialize', 'version', 'init', 'start', 'help'].include?(v.method_name.to_s)}.values.uniq

    tasks = project_tasks.map { |task|
      "  zeus %-14s # %s" % [task.method_name, task.desc]
    }

    Zeus.ui.info <<-BANNER
Global Commands:
zeus help           # show this help menu
zeus help [COMMAND] # show help for a specific command
zeus init           # #{task_for_name(:init).desc}
zeus start          # #{task_for_name(:start).desc}
zeus version        # #{task_for_name(:version).desc}

Project-local Commands:
#{tasks.join("\n")}
BANNER
  end
end

#task_for_name(name) ⇒ Object 



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# File 'lib/thrud.rb', line 41

def task_for_name(name)
  self.class.task_for_name(name)
end