Class: Teapot::Target

Inherits:
Definition show all
Includes:
Dependency
Defined in:
lib/teapot/target.rb

Instance Attribute Summary

Attributes inherited from Definition

#context, #description, #name, #package

Instance Method Summary collapse

Methods included from Dependency

chain, #dependencies, #depends, #depends?, #provides, #provides?, #provisions

Methods inherited from Definition

#path, #to_s

Constructor Details

#initialize(context, package, name) ⇒ Target

Returns a new instance of Target.



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# File 'lib/teapot/target.rb', line 33

def initialize(context, package, name)
  super context, package, name

  @build = nil
end

Instance Method Details

#build(&block) ⇒ Object 



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# File 'lib/teapot/target.rb', line 72

def build(&block)
  if block_given?
    @build = Proc.new(&block)
  end
  
  return @build
end

#build!(configuration) ⇒ Object 



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# File 'lib/teapot/target.rb', line 80

def build!(configuration)
  return unless @build
  
  local_environment = environment_for_configuration(configuration)
  
  @build.call(local_environment)
end

#builder ⇒ Object 



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# File 'lib/teapot/target.rb', line 39

def builder
  Build.top(@path)
end

#environment_for_configuration(configuration) ⇒ Object 



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# File 'lib/teapot/target.rb', line 43

def environment_for_configuration(configuration)
  # Reduce the number of keystrokes for good health:
  context = configuration.context
  
  chain = Dependency::chain(context.selection, dependencies, context.targets.values)
  
  environments = []
  
  # Calculate the dependency chain's ordered environments:
  environments += chain.provisions.collect do |provision|
    Environment.new(&provision.value)
  end
  
  # Per-configuration package package environment:
  environments << @package.options[:environment]
  
  # Merge all the environments together:
  environment = Environment.combine(*environments)
    
  environment.merge do
    default platforms_path configuration.platforms_path
    default build_prefix {platforms_path + "cache/#{platform_name}-#{variant}"}
    default install_prefix {platforms_path + "#{platform_name}-#{variant}"}
  
    append buildflags {"-I#{install_prefix + "include"}"}
    append linkflags {"-L#{install_prefix + "lib"}"}
  end
end

#run(&block) ⇒ Object

Specify a default block which is used to run the configuration.



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# File 'lib/teapot/target.rb', line 89

def run(&block)
  if block_given?
    @run = block
  end
  
  return @run
end

#run!(configuration) ⇒ Object 



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# File 'lib/teapot/target.rb', line 97

def run!(configuration)
  return unless @run
  
  local_environment = environment_for_configuration(configuration)
  
  if @run
    @run.call(local_environment)
  end
end