Class: Teapot::Loader

Inherits:
Object
  • Object
show all
Includes:
Build::Helpers
Defined in:
lib/teapot/loader.rb

Defined Under Namespace

Classes: Definitions

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Build::Helpers

#build_directory, #build_external

Constructor Details

#initialize(context, package) ⇒ Loader

Returns a new instance of Loader.



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# File 'lib/teapot/loader.rb', line 58

def initialize(context, package)
  @context = context
  @package = package

  @defined = Definitions.new
  @version = nil
end

Instance Attribute Details

#context ⇒ Object (readonly)

Returns the value of attribute context.



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# File 'lib/teapot/loader.rb', line 66

def context
  @context
end

#defined ⇒ Object (readonly)

Returns the value of attribute defined.



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# File 'lib/teapot/loader.rb', line 68

def defined
  @defined
end

#package ⇒ Object (readonly)

Returns the value of attribute package.



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# File 'lib/teapot/loader.rb', line 67

def package
  @package
end

#version ⇒ Object (readonly)

Returns the value of attribute version.



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# File 'lib/teapot/loader.rb', line 69

def version
  @version
end

Instance Method Details

#define_configuration(*args) {|configuration| ... } ⇒ Object

Yields:

  • (configuration) 


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# File 'lib/teapot/loader.rb', line 99

def define_configuration(*args)
  configuration = Configuration.new(@context, @package, *args)

  yield configuration

  configuration.top!

  @defined << configuration
end

#define_generator(*args) {|generator| ... } ⇒ Object

Yields:

  • (generator) 


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# File 'lib/teapot/loader.rb', line 91

def define_generator(*args)
  generator = Generator.new(@context, @package, *args)

  yield generator

  @defined << generator
end

#define_target(*args) {|target| ... } ⇒ Object

Yields:

  • (target) 


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# File 'lib/teapot/loader.rb', line 83

def define_target(*args)
  target = Target.new(@context, @package, *args)

  yield target

  @defined << target
end

#host(*args, &block) ⇒ Object

Checks the host patterns and executes the block if they match.



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# File 'lib/teapot/loader.rb', line 110

def host(*args, &block)
  name = @context.options[:host_platform] || RUBY_PLATFORM
  
  if block_given?
    if args.find{|arg| arg === name}
      yield
    end
  else
    name
  end
end

#load(path) ⇒ Object

Load a teapot.rb file relative to the root of the @package.

Raises:



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# File 'lib/teapot/loader.rb', line 123

def load(path)
  absolute_path = @package.path + path

  raise NonexistantTeapotError.new(absolute_path) unless File.exist?(absolute_path)

  self.instance_eval(absolute_path.read, absolute_path.to_s)
  
  if @version == nil
    raise IncompatibleTeapotError.new(@package, "<unspecified>")
  end
end

#teapot_version(version) ⇒ Object Also known as: required_version 



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# File 'lib/teapot/loader.rb', line 71

def teapot_version(version)
  version = version[0..2]
  
  if version >= MINIMUM_LOADER_VERSION && version <= LOADER_VERSION
    @version = version
  else
    raise IncompatibleTeapotError.new(package, version)
  end
end