require 'rake'
require 'rake/clean'
require 'rake/tasklib'
require 'leaves/core_ext/string'
require 'leaves/rake_ext/tasklib'
require 'leaves/version'


module Rake
module Leaves

  class MakeTask < TaskLib
    attr_accessor :makefile
    attr_accessor :version
    attr_accessor :disable_shared
    attr_accessor :c_flags
    attr_accessor :do_not_configure
    
    def initialize(name = nil)
      @name = name
      
      yield self if block_given?
      define
    end
    
    def define
      desc "Build using GNU toolchain."
      task upaste("build", @name) => [upaste("compile", @name)]
      
      task upaste("compile", @name) do
        cmd = "make"
        cmd << " -f #{@makefile}" if @makefile
        
        sh cmd
      end
      task upaste("compile", @name) => [:dot_configure] unless @do_not_configure
      
      # autoreconf is used to generate configuration files.  As a result of its
      # execution, a configure script will be generated.  If the configure
      # script already exists, there is no reason to execute the command.
      unless @do_not_configure
        file_create "configure" do
          sh "autoreconf -i"
        end
        task :autoreconf => ["configure"]
      end
      
      # A configuration script is used during the system detection and makefile
      # generation phases.  As a result of its execution, a makefile will be
      # generated, which can be used to build the program.  If a makefile
      # already exists, there is no reason to execute the configure script.
      #
      # NOTE: The task is named "dot_configure" to avoid a conflict with the
      #       file creation task that must be named "configure"
      unless @do_not_configure
        file_create "Makefile" do
          cmd = ""
          cmd << "CFLAGS=\"#{@c_flags}\" " if @c_flags
          
          cmd << "./configure"
          cmd << " --with-version=\"#{@version}\"" if @version
          cmd << " --disable-shared" if @disable_shared
          
          sh cmd
        end
        task :dot_configure => [:autoreconf, "Makefile"]
      end
      
      task :clean do
        sh "make clean"
      end
      
      task :clobber do
        sh "make distclean"
      end
      
      self
    end
    
  end

end  
end