Wire up the CodeMirror assets for your Rails applications.

If you're using Bundler, you can add codemirror-rails to your Gemfile:

gem 'codemirror-rails'

Or manually install the codemirror-rails gem:

gem install codemirror-rails

All of the assets from the most latest stable CodeMirror release are vendored so that you can use them with the asset pipeline. At a minimum, you will probably want the following in your application.js:

//= require codemirror

And in your application.css:

/*
*= require codemirror
*/

Additional syntax modes can be added to your application.js:

//= require codemirror/modes/ruby

Additional addons can be added in your application.js:

//= require_tree codemirror/addons/dialog

And your application.css:

/*
*= require_tree codemirror/addons/dialog
*/

Additional keymap bindings can be added to your application.js:

//= require codemirror/keymaps/vim

Additional CSS themes can be added to your application.css

/*
*= require codemirror/themes/night
*/

If your project is using precompiling, depending on your method of grabbing files to precompile, you might need to add the below line to your ```` application.rb```, to get rails to precompile all js, css files used by codemirror. You can also manually whitelist only the files that you use.

config.assets.precompile += ["codemirror*", "codemirror/**/*"]

You can use the generator included with this gem to copy the CodeMirror 2 assets into your Rails 3 public directory.

rails generate codemirror:install

Find a mistake? New version of CodeMirror? Submit a pull request!