Adds sprockets support for Opal.
Add to your Gemfile:
gem "opal-sprockets"The version number is an attempt to keep track and support different combinations of both opal and sprockets without cluttering the code with giant ifs and conditional requires. The structure is roughly as follows:
<basic version number>.<opal version number>.<sprockets version numbers>
For example version 0.4.1.0.11.0.rc1.3.1 is build taking into account the following components:
BASE_VERSION = '0.4.1'
OPAL_VERSION = '0.11.0.rc1'
SPROCKETS_VERSION = '3.1'
Sprockets uses a set of load paths to resolve dependencies. This gem extends
sprockets to provide opal load paths to sprockets. opal-sprockets provides
a template processor for all files with .rb or .opal extensions.
#= require opal
puts "opal running in sprockets!"By default, sprockets will examine your code for processor directive comments
to handle requires, e.g. #= require opal. Opal takes this one step futher
by extending the opal processor to automatically detect and register any
require call made inside your ruby code:
require "opal"
require "opal-jquery"
puts "opal-jquery is now available!"Opal cannot require files at runtime, so this trick allows ruby code to use the nicer ruby syntax for requiring dependencies.
Sprockets uses a load path for code files, so make a simple app/ directory
with some code inside app/application.rb:
# app/application.rb
require "opal"
puts "hello, world"The opal corelib and runtime can be included in your app simply by adding
require "opal". We also need an html file to test the application with,
so add index.html:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<script src="/assets/application.js"></script>
</head>
<body>
</body>
</html>opal-sprockets comes with a simple Server class that can be used to easily
configure applications inside config.ru:
# config.ru
require 'bundler'
Bundler.require
run Opal::Sprockets::Server.new { |s|
s.append_path 'app'
s.main = 'application'
# This can be used to provide a custom index file.
# s.index_path = 'my_index.erb'
}This just adds the app/ directory to the load path, and tells sprockets that
application.rb will be the main file to load.
Now just run the rack app:
$ bundle exec rackup
And then visit http://127.0.0.1:9292 in any browser.
opal-sprockets will create source maps for all assets by default. You can disable this with:
Opal::Config.source_map_enabled = false(The MIT License)
Copyright (C) 2013 by Adam Beynon Copyright (C) 2013 by Elia Schito
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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