Guardfile

# remove for asciidoctor (Ruby) implementation
# require 'asciidoctor'
# require 'erb'

#
# Purpose:	automatically run scripts when any .ADOC file changes; creates OS X (Mavericks) notifications
# Requires:	
# - Ruby (https://www.ruby-lang.org)
#	- guard (https://github.com/guard/)
#	- guard-shell (https://github.com/hawx/guard-shell)
#
guard :shell do

  # when guard see a change to a document with .adoc extension
  watch(/(.*).adoc/) {|m|

    n m[0], 'File Changed', :success

    # generate HTML
    `asciidoc #{m[0]}`
    n m[0].gsub('adoc','html'), 'File Created', :success

    # generate XML (precursor for ePUB, PDF, Mobi)
   	`asciidoc -b docbook #{m[0]}`
    n m[0].gsub('adoc','xml'), 'File Created', :success

   	# generate PDF; template-docinfo.xml; FOP instead of dblatex
   	`a2x -f pdf -d book -a docinfo --fop #{m[0]}`
    n m[0].gsub('adoc','pdf'), 'File Created', :success

   	# generate ePub; template-docinfo.xml; FOP instead of dblatex
  	`a2x -f epub -d book -a docinfo --fop #{m[0]}`
    n m[0].gsub('adoc','epub'), 'File Created', :success

	# use Asciidoctor (Ruby) implementations
#    Asciidoctor.render_file(m[0], {:in_place => true, :safe => :unsafe})

  }

end