DSL is a module that provides task, desc, namespace, etc. Use this when you'd like to use rake outside the top level scope.

Methods
D
F
I
M
N
R
T
Included Modules
Instance Private methods
desc(description)

Describe the next rake task.

Example:

desc "Run the Unit Tests"
task :test => [:build]
  runtests
end

Source: show | on GitHub 

# File ../ruby/lib/rake/dsl_definition.rb, line 124
def desc(description)
  Rake.application.last_description = description
end
directory(dir)

Declare a set of files tasks to create the given directories on demand.

Example:

directory "testdata/doc"

Source: show | on GitHub 

# File ../ruby/lib/rake/dsl_definition.rb, line 65
def directory(dir)
  Rake.each_dir_parent(dir) do |d|
    file_create d do |t|
      mkdir_p t.name if ! File.exist?(t.name)
    end
  end
end
file(*args, &block)

Declare a file task.

Example:

 file "config.cfg" => ["config.template"] do
   open("config.cfg", "w") do |outfile|
     open("config.template") do |infile|
       while line = infile.gets
         outfile.puts line
       end
     end
   end
end

Source: show | on GitHub 

# File ../ruby/lib/rake/dsl_definition.rb, line 49
def file(*args, &block)
  Rake::FileTask.define_task(*args, &block)
end
file_create(args, &block)

Declare a file creation task. (Mainly used for the directory command).

Source: show | on GitHub 

# File ../ruby/lib/rake/dsl_definition.rb, line 55
def file_create(args, &block)
  Rake::FileCreationTask.define_task(args, &block)
end
import(*fns)

Import the partial Rakefiles fn. Imported files are loaded after the current file is completely loaded. This allows the import statement to appear anywhere in the importing file, and yet allowing the imported files to depend on objects defined in the importing file.

A common use of the import statement is to include files containing dependency declarations.

See also the –rakelibdir command line option.

Example:

import ".depend", "my_rules"

Source: show | on GitHub 

# File ../ruby/lib/rake/dsl_definition.rb, line 142
def import(*fns)
  fns.each do |fn|
    Rake.application.add_import(fn)
  end
end
multitask(args, &block)

Declare a task that performs its prerequisites in parallel. Multitasks does not guarantee that its prerequisites will execute in any given order (which is obvious when you think about it)

Example:

multitask :deploy => [:deploy_gem, :deploy_rdoc]

Source: show | on GitHub 

# File ../ruby/lib/rake/dsl_definition.rb, line 81
def multitask(args, &block)
  Rake::MultiTask.define_task(args, &block)
end
namespace(name=nil, &block)

Create a new rake namespace and use it for evaluating the given block. Returns a NameSpace object that can be used to lookup tasks defined in the namespace.

E.g.

ns = namespace "nested" do
  task :run
end
task_run = ns[:run] # find :run in the given namespace.

Source: show | on GitHub 

# File ../ruby/lib/rake/dsl_definition.rb, line 96
def namespace(name=nil, &block)
  name = name.to_s if name.kind_of?(Symbol)
  name = name.to_str if name.respond_to?(:to_str)
  unless name.kind_of?(String) || name.nil?
    raise ArgumentError, "Expected a String or Symbol for a namespace name"
  end
  Rake.application.in_namespace(name, &block)
end
rule(*args, &block)

Declare a rule for auto-tasks.

Example:

rule '.o' => '.c' do |t|
  sh %{cc -o #{t.name} #{t.source}}
end

Source: show | on GitHub 

# File ../ruby/lib/rake/dsl_definition.rb, line 112
def rule(*args, &block)
  Rake::Task.create_rule(*args, &block)
end
task(*args, &block)

Declare a basic task.

Example:

task :clobber => [:clean] do
  rm_rf "html"
end

Source: show | on GitHub 

# File ../ruby/lib/rake/dsl_definition.rb, line 31
def task(*args, &block)
  Rake::Task.define_task(*args, &block)
end