Class: Webgen::SourceHandler::Main

Inherits:
Object
  • Object
show all
Includes:
Loggable, WebsiteAccess
Defined in:
lib/webgen/sourcehandler.rb

Overview

This class is used by Website to do the actual rendering of the website. It

  • collects all source paths using the source classes

  • creates nodes using the source handler classes

  • writes changed nodes out using an output class

Instance Method Summary collapse

Methods included from Loggable

#log, #puts

Methods included from WebsiteAccess

included, website

Constructor Details

#initialize ⇒ Main

:nodoc:



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# File 'lib/webgen/sourcehandler.rb', line 33

def initialize #:nodoc:
  website.blackboard.add_service(:create_nodes, method(:create_nodes))
  website.blackboard.add_service(:source_paths, method(:find_all_source_paths))
  website.blackboard.add_listener(:node_meta_info_changed?, method(:meta_info_changed?))
end

Instance Method Details

#render(tree) ⇒ Object

Render the nodes provided in the tree. Before the actual rendering is done, the sources are checked (nodes for deleted sources are deleted, nodes for new and changed sources).



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# File 'lib/webgen/sourcehandler.rb', line 41

def render(tree)
  # Add new and changed nodes, remove nodes of deleted paths
  puts "Generating tree..."
  time = Benchmark.measure do
    used_paths = Set.new
    paths = Set.new([nil])
    while paths.length > 0
      used_paths += (paths = Set.new(find_all_source_paths.keys) - used_paths - clean(tree))
      create_nodes_from_paths(tree, paths)
      website.cache.reset_volatile_cache
    end
  end
  puts "...done in " + ('%2.4f' % time.real) + ' seconds'

  output = website.blackboard.invoke(:output_instance)

  puts "Writing changed nodes..."
  time = Benchmark.measure do
    tree.node_access[:alcn].sort.each do |name, node|
      node.dirty_meta_info = node.created = false
      next if node == tree.dummy_root || !node.dirty
      node.dirty = false

      begin
        if !node['no_output'] && (content = node.content)
          puts " "*4 + name, :verbose
          type = if node.is_directory?
                   :directory
                 elsif node.is_fragment?
                   :fragment
                 else
                   :file
                 end
          output.write(node.path, content, type)
        end
      rescue
        raise RuntimeError, "Error while processing <#{node.absolute_lcn}>: #{$!.message}", $!.backtrace
      end
    end
  end
  puts "...done in " + ('%2.4f' % time.real) + ' seconds'
end