masnick/Gemfile

## Gemfile
source 'https://rubygems.org'
gem 'guard'
gem 'guard-livereload', '~> 2.4', require: false
gem 'rack-livereload'
gem 'sinatra'
gem 'thin'

## Guardfile
# A sample Guardfile
# More info at https://github.com/guard/guard#readme

## Uncomment and set this to only include directories you want to watch
# directories %w(app lib config test spec features)

## Uncomment to clear the screen before every task
# clearing :on

## Guard internally checks for changes in the Guardfile and exits.
## If you want Guard to automatically start up again, run guard in a
## shell loop, e.g.:
##
##  $ while bundle exec guard; do echo "Restarting Guard..."; done
##
## Note: if you are using the `directories` clause above and you are not
## watching the project directory ('.'), then you will want to move
## the Guardfile to a watched dir and symlink it back, e.g.
#
#  $ mkdir config
#  $ mv Guardfile config/
#  $ ln -s config/Guardfile .
#
# and, you'll have to watch "config/Guardfile" instead of "Guardfile"

guard 'livereload' do
  watch(%r{index\.html})
  # You'll have to customize this depending on what files you want to trigger LiveReload
  # watch(%r{app/views/.+\.(erb|haml|slim)$})
  # watch(%r{app/helpers/.+\.rb})
  # watch(%r{public/.+\.(css|js|html)})
  # watch(%r{config/locales/.+\.yml})
  # # Rails Assets Pipeline
  # watch(%r{(app|vendor)(/assets/\w+/(.+\.(css|js|html|png|jpg))).*}) { |m| "/assets/#{m[3]}" }
end

## index.html
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript" src="js/something.js"></script>
</head>
<body>
  hello world
</body>
</html>

## serve.rb
require 'rubygems'
require 'bundler'
Bundler.require :default, (ENV["RACK_ENV"] || "development").to_sym

use Rack::LiveReload, :host => 'yourcomputer.local'

set :bind, 'localhost' # only available on local computer

# set :public_folder, 'assets'
# set :public_folder, 'img'
set :public_folder, 'js'

get '/' do
  File.read('index.html')
end

# Serve static assets
get %r{/(assets|img|js)/(.*)} do
  fullpath = File.expand_path(File.join(settings.root, params[:captures][0], params[:captures][1]))

  # Checks to make sure the requested path is a subdirectory of assets, img, or js (not /img/../../something_else)
  if /^#{settings.root}\/(assets|img|js)/ =~ fullpath.to_s then
    send_file fullpath
  else
    halt 404
  end
end
	source 'https://rubygems.org'
	gem 'guard'
	gem 'guard-livereload', '~> 2.4', require: false
	gem 'rack-livereload'
	gem 'sinatra'
	gem 'thin'
	# A sample Guardfile
	# More info at https://github.com/guard/guard#readme

	## Uncomment and set this to only include directories you want to watch
	# directories %w(app lib config test spec features)

	## Uncomment to clear the screen before every task
	# clearing :on

	## Guard internally checks for changes in the Guardfile and exits.
	## If you want Guard to automatically start up again, run guard in a
	## shell loop, e.g.:
	##
	## $ while bundle exec guard; do echo "Restarting Guard..."; done
	##
	## Note: if you are using the `directories` clause above and you are not
	## watching the project directory ('.'), then you will want to move
	## the Guardfile to a watched dir and symlink it back, e.g.
	#
	# $ mkdir config
	# $ mv Guardfile config/
	# $ ln -s config/Guardfile .
	#
	# and, you'll have to watch "config/Guardfile" instead of "Guardfile"

	guard 'livereload' do
	watch(%r{index\.html})
	# You'll have to customize this depending on what files you want to trigger LiveReload
	# watch(%r{app/views/.+\.(erb\|haml\|slim)$})
	# watch(%r{app/helpers/.+\.rb})
	# watch(%r{public/.+\.(css\|js\|html)})
	# watch(%r{config/locales/.+\.yml})
	# # Rails Assets Pipeline
	# watch(%r{(app\|vendor)(/assets/\w+/(.+\.(css\|js\|html\|png\|jpg))).*}) { \|m\| "/assets/#{m[3]}" }
	end
	<!DOCTYPE html>
	<html>
	<head>
	<script type="text/javascript" src="js/something.js"></script>
	</head>
	<body>
	hello world
	</body>
	</html>
	require 'rubygems'
	require 'bundler'
	Bundler.require :default, (ENV["RACK_ENV"] \|\| "development").to_sym

	use Rack::LiveReload, :host => 'yourcomputer.local'

	set :bind, 'localhost' # only available on local computer

	# set :public_folder, 'assets'
	# set :public_folder, 'img'
	set :public_folder, 'js'

	get '/' do
	File.read('index.html')
	end

	# Serve static assets
	get %r{/(assets\|img\|js)/(.*)} do
	fullpath = File.expand_path(File.join(settings.root, params[:captures][0], params[:captures][1]))

	# Checks to make sure the requested path is a subdirectory of assets, img, or js (not /img/../../something_else)
	if /^#{settings.root}\/(assets\|img\|js)/ =~ fullpath.to_s then
	send_file fullpath
	else
	halt 404
	end
	end