A file system watching template compiler for packaging client-side templates (uses underscore.js templates)

gistfile1.rb

require 'fileutils'

watch( '.*\.*tmpl.html' )  do |md| 
    puts "detected change to #{md[0]}" 
    compile_html '*tmpl.html', 'App.Templates', 'src/client/js/lib/templates.coffee'
end

def compile_html(file_pattern, namespace, output_file)
    markup = ''
    Dir["**/#{file_pattern}"].each do |file|
        markup += "#{namespace}.#{File.basename(file, '.html')} = _.template(\"\"\"\n" + IO.read(file) + "\n\"\"\")\n\n"
    end
    File.open(output_file, "w") { |f| f << markup }
end