Static pages management with Asset Pipeline
Ruby HTML CSS JavaScript
Latest commit 1f25863 Feb 1, 2017 @yasaichi committed on GitHub Merge pull request #12 from yasaichi/fix-failed-tests-on-travisci
Fix build failing on Travis CI


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Gakubuchi provides a simple way to manage static pages (e.g. error pages) with Asset Pipeline.


Put this in your Gemfile:

gem 'gakubuchi'

Run the installation generator with:

rails generate gakubuchi:install

Or specify the name of directory for static pages:

rails generate gakubuchi:install -d html

They will install the initializer into config/initializers/gakubuchi.rb and create the directory in app/assets.
If you don't specify the -d option, templates will be used as default.


In app/assets/templates/404.html.slim:

doctype html
    title The page you were looking for doesn't exist (404)
    meta name='viewport' content='width=device-width,initial-scale=1'
    = stylesheet_link_tag 'application', media: 'all'
        h1 The page you were looking for doesn't exist.
        p You may have mistyped the address or the page may have moved.
      p If you are the application owner check the logs for more information.

Open the following URL in your browser to check the templeate:


Compile the templeate with:

rake assets:precompile

This will generate public/404.html.

Template engines

Gakubuchi supports some template engines: ERB, Haml and Slim.
If you want to use Haml or Slim, you need to put them in your Gemfile:

# Use Haml
gem 'haml-rails'

# Use Slim
gem 'slim-rails'

Using assets

Gakubuchi enables you to use assets (e.g. CSS or JavaScript files) in static pages.
Note that you may need to add them to the precompile array in config/initializers/assets.rb:

Rails.application.config.assets.precompile += %w(error.css error.js)

Using helpers

You can also use helpers provided by Sprockets::Rails::Helper in static pages.
Examples of them are given below.

  • asset_path
  • content_tag
  • favicon_link_tag
  • image_tag
  • javascript_include_tag

If you want to get the list of all available helpers, please execute the following code.



In config/initializers/gakubuchi.rb, you can configure the following values.

leave_digest_named_templates # false by default
template_directory           # 'templates' by default


You should follow the steps below.

  1. Fork the repository
  2. Create a feature branch: git checkout -b add-new-feature
  3. Commit your changes: git commit -am 'add new feature'
  4. Push the branch: git push origin add-new-feature
  5. Send us a pull request

We use Appraisal to test with different combinations of sprockets and sprockets-rails.

bundle install
appraisal install

# Run RSpec with a specific combination
appraisal 'sprockets-rails 3 with sprockets 3' rspec

# Run RSpec with all combinations
appraisal rspec


MIT License. Copyright 2015 Yuichi Goto.