Class: Webby::AutoBuilder

Inherits:
Object
  • Object
show all
Defined in:
lib/webby/auto_builder.rb

Overview

The AutoBuilder class is used to monitor the content and layouts folders and to compile the resource files only when they are modified. If a layout is modified, then all resources that depend upon the layout are compiled.

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ AutoBuilder

call-seq:

AutoBuilder.new

Create a new AutoBuilder class.



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# File 'lib/webby/auto_builder.rb', line 29

def initialize
  @watcher = DirectoryWatcher.new '.', :interval => 2
  @watcher.add_observer self

  glob = []
  glob << File.join(::Webby.config['layout_dir'], '**', '*')
  glob << File.join(::Webby.config['content_dir'], '**', '*')
  @watcher.glob = glob
end

Class Method Details

.run ⇒ Object

call-seq:

AutoBuilder.run

Creates a new AutoBuilder and sets it running. This method will only return when the user presses Ctrl-C.



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# File 'lib/webby/auto_builder.rb', line 20

def self.run
  self.new.run
end

Instance Method Details

#run ⇒ Object

call-seq:

run

Starts the DirectoryWatcher running and waits till the user presses Ctrl-C to stop the watcher thread.



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# File 'lib/webby/auto_builder.rb', line 63

def run
  puts '-- starting autobuild (Ctrl-C to stop)'

  Signal.trap('INT') {@watcher.stop}

  @watcher.start
  @watcher.join
end

#update(*events) ⇒ Object

call-seq:

update( *events )

The update method is called by the DirectoryWatcher when files have been modified, added, or deleted. An array of events is passed to his method, and each event contains the event type and the path to the file.



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# File 'lib/webby/auto_builder.rb', line 46

def update( *events )
  ary = events.find_all {|evt| evt.type != :removed}
  return if ary.empty?

  print '- started at '
  puts Time.now.strftime('%H:%M:%S')
  Builder.run
rescue => err
  puts err.message
end