Module: DSLTasks::TaskMixin

Included in:
DSLTaskContext, Task
Defined in:
lib/dsltasks/dsltasks.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name, *args, &block) ⇒ Object 



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# File 'lib/dsltasks/dsltasks.rb', line 87

def method_missing(name, *args, &block)
  run_task(name, *args, block)
end

Instance Attribute Details

#__block__ ⇒ Object (readonly)

Returns the value of attribute __block__.



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# File 'lib/dsltasks/dsltasks.rb', line 4

def __block__
  @__block__
end

#__lib_dirs__ ⇒ Object (readonly)

Returns the value of attribute lib_dirs.



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# File 'lib/dsltasks/dsltasks.rb', line 8

def __lib_dirs__
  @__lib_dirs__
end

#__lib_stack__ ⇒ Object (readonly)

Returns the value of attribute lib_stack.



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# File 'lib/dsltasks/dsltasks.rb', line 7

def __lib_stack__
  @__lib_stack__
end

#__name__ ⇒ Object (readonly)

Returns the value of attribute __name__.



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# File 'lib/dsltasks/dsltasks.rb', line 5

def __name__
  @__name__
end

#__parent_task__ ⇒ Object (readonly)

Returns the value of attribute parent_task.



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# File 'lib/dsltasks/dsltasks.rb', line 6

def __parent_task__
  @__parent_task__
end

Instance Method Details

#__caller__ ⇒ Object 



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# File 'lib/dsltasks/dsltasks.rb', line 29

def __caller__()
  (DSLTasks::task_stack(@__root__))[-2]
end

#__exec__(calling_task, args, block) ⇒ Object 



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# File 'lib/dsltasks/dsltasks.rb', line 18

def __exec__(calling_task, args, block)
  rvalue = nil
  task_stack = DSLTasks::task_stack(@__root__)
  task_stack.push self
  unless block.nil?
    args << block
  end
  rvalue = instance_exec(*args, &@__block__)
  task_stack.pop
  return rvalue
end

#__initialize_task_mixin__(opts = {}) ⇒ Object 



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

def __initialize_task_mixin__(opts={})
  @__parent_task__ = opts[:parent]
  @__name__ = opts[:name]
  @__block__ = opts[:block]
  @__lib_stack__ = opts[:lib_stack]
  @__lib_dirs__ = opts[:lib_dirs] || (opts[:parent] ? opts[:parent].__lib_dirs__ : [])
  @__root__ = opts[:root] || self
  @__tasks__ = Hash.new
end

#lib(lib_name) ⇒ Object 



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# File 'lib/dsltasks/dsltasks.rb', line 32

def lib(lib_name)
  lib_name = lib_name.to_s
  if lib_name.start_with?('/')
    if File.exist?(lib_name)
      unless @__lib_stack__.include?(lib_name)
        @__lib_stack__.push(File.expand_path(lib_name))
        instance_eval(File.read(lib_name), File.expand_path(lib_name))
        @__lib_stack__.pop
      end
    else
      raise "Lib file not found: #{lib_name}"
    end
  else
    # search path if not absolute:
    #   directory of file of task from which lib was called
    #   directories in @__lib_dirs__, in order
    dirnames = [File.dirname(@__lib_stack__[-1]), *@__lib_dirs__]
    fnames = dirnames.map {|d| File.join(d, lib_name)}
    fnames.map! {|f| f.end_with?('.rb') ? f : f+'.rb'}
    found_lib = false
    fnames.each do |fname|
      if File.exist?(fname)
        unless @__lib_stack__.include?(fname)
          @__lib_stack__.push(File.expand_path(fname))
          instance_eval(File.read(fname), File.expand_path(fname))
          @__lib_stack__.pop
        end
        found_lib = true
        break
      end
    end
    if !found_lib
      raise "Lib file not found in possible locations: #{fnames.join(',')}"
    end
  end
end

#respond_to_missing?(name, *args) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/dsltasks/dsltasks.rb', line 90

def respond_to_missing?(name, *args)
  if @__tasks__.has_key?(name.to_sym)
    return true
  elsif @__parent_task__
    return @__parent_task__.respond_to_missing?(name, *args)
  else
    return false
  end
end

#run_task(name, *args, block) ⇒ Object 



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# File 'lib/dsltasks/dsltasks.rb', line 68

def run_task(name, *args, block)
  if @__tasks__.has_key?(name.to_sym)
    task = @__tasks__[name.to_sym]
    return task.__exec__(self, args, block)
  elsif @__parent_task__
    return @__parent_task__.run_task(name, *args, block)
  else
    raise "Unrecognized task: #{name}"
  end
end

#task(name, &block) ⇒ Object 



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

def task(name, &block)
  if block.nil?
    if @__tasks__.has_key?(name.to_sym)
      return @__tasks__[name.to_sym]
    end
  else
    @__tasks__[name.to_sym] = Task.new(parent: self, lib_stack: @__lib_stack__.clone, name: name.to_sym, block: block, root: @__root__)
  end
end