source_package.rb

define :source_package do
  source_root     = "/export/source"
  build_root      = "/export/builds"
  build_directory = "#{build_root}/#{$1}" if params[:filename] =~ /(.*)\.(tar\.gz|tgz|tar\.bz2|tb2)/
  
  [source_root, build_root].each do |r|
    directory r do 
      mode 0755
      action :create
      not_if { File.directory?( r ) }
    end 
  end
  
  # fetch remote file
  remote_file "#{source_root}/#{params[:filename]}" do
    source "#{params[:location]}/#{params[:filename]}"
    not_if { File.exists?( "#{source_root}/#{params[:filename]}" ) }
  end
  
  # extract file
  extract_command = case params[:filename]
                    when /(tar.gz)|(tgz)$/
                      'tar xzf'
                    when /(tar.bz2)|(tb2)$/
                      'tar xjf'
                    when /tar$/
                      'tar xf'
                    when /zip$/
                      'unzip'
                    else
                      raise "Unknown source archive format: #{archive_name}"
                    end
  
  extract_command << " #{source_root}/#{params[:filename]} -C #{build_root}"
  
  # decide what to configure
  configure_options = "./configure --prefix=#{params[:prefix]} "
  unless params[:configure].nil? or params[:configure][:with].nil?
    params[:configure][:enable] = params[:configure][:enable].compact.reject {|s| s.empty?}
    configure_options << params[:configure][:with].map {|o| "--with-#{o} "}.join(' ') 
  end
  
  unless params[:configure].nil? or params[:configure][:enable].nil?
    params[:configure][:enable] = params[:configure][:enable].compact.reject {|s| s.empty?}
    configure_options << params[:configure][:enable].map {|o| "--enable-#{o} " unless o.eql?('')}.join(' ') 
  end
  
  # execute commands
  execute "extracting and building #{params[:name]}" do
    command [extract_command, "cd #{build_directory}", configure_options, "make", "make install"].join(' && ')
    not_if { File.directory?( params[:prefix] ) }
  end
end