Staticky

Staticky is a static site builder for Ruby maximalists. I built this library because I wanted something more scriptable than Bridgetown and Jekyll that had first-class support for Phlex components.

Phlex makes building component based frontends fun and I wanted to extend the developer experience of something like Rails but focused on static sites.

I am using this at https://taintedcoders.com. (soon)

Hot reloading in development with Roda serving static files
Docker deployment with NGINX

You can find a working setup in site_template folder.

Installation

Install the gem and add to the application's Gemfile by executing:

$ bundle add staticky

If bundler is not being used to manage dependencies, install the gem by executing:

$ gem install staticky

Usage

First you can use the CLI to generate a new template:

staticky new my_blog --url "https://example.com"

This will generate a new site at ./my_blog, install your dependencies and run rspec just to make sure everything got set up correctly.

You can append --help to any commands to see info:

staticky new --help

Which outputs:

Command:
  staticky new

Usage:
  staticky new PATH

Description:
  Create new site

Arguments:
  PATH                              # REQUIRED Relative path where the site will be generated

Options:
  --url=VALUE, -u VALUE             # Site URL, default: "https://example.com"
  --title=VALUE, -t VALUE           # Site title, default: "Example"
  --description=VALUE, -d VALUE     # Site description, default: "Example site"
  --twitter=VALUE, -t VALUE         # Twitter handle, default: ""
  --help, -h                        # Print this help

Plugins

The router and resources use the plugin pattern found in Sequel and Roda.

This means you can easily extend each of them with plugins to fit the specific content of your site.

module MyResourcePlugin
  module InstanceMethods
    def component=(component)
      @component = component
    end

    def component
      return @component if defined?(@component)

      raise ArgumentError, "component is required"
    end
  end
end

In our own classes we can now reference our new plugin:

class SomeResource < Staticky::Resource
  plugin MyResourcePlugin
end

Or, if we register the plugin with register_plugin we can just use our shorter symbol:

Staticky::Resources::Plugins.register_plugin(:something, MyResourcePlugin)

class SomeResource < Staticky::Resource
  plugin :something
end

This system lets you define your own specific resources by subclassing and extending with your own plugins.

Here is an example of hooking into the output of the component (a string of HTML):

module MinifyHTML
  module InstanceMethods
    # Calling super works because the base class has no methods, everything is
    # a plugin including the core behavior of a resource.
    def build
      SomehowMinifyTheHTML.call(super)
    end
  end
end

Staticky::Resources::Plugins.register_plugin(:minify_html, MinifyHTML)

class ApplicationResource < Staticky::Resource
  plugin :minify_html
end

Now when an ApplicationResource gets rendered, its final output (a string of HTML) will be minified.

Each plugin can define modules for:

Name	Description
InstanceMethods	Get added as instance methods of the Resource
ClassMethods	Get added as the class methods of the Resource

In addition you have methods you can define that let you hook into the resource that adds your plugins:

Name	Description
load_dependencies(plugin, ...)	Hook to load any other plugins required by this one
configure(plugin, ...)	Hook for additional setup required on the class

Routing

Your router is a plugin system that by default only has one plugin:

plugin :prelude

This gives you the match and root methods in your router. You can override or extend these methods yourself by redefining them (and optionally calling super) inside your own plugin or class that inherits from the router.

Once your site is generated you can use the router to define how your content maps to routes in config/routes.rb:

Staticky.router.define do
  root to: Pages::Home

  # We can pass in a phlex class
  match "404", to: Errors::NotFound
  # Or an instance
  match "500", to: Errors::ServiceError.new

  # We can specify the resource type
  match "about",
    to: Markdown.new("content/posts/about.md"),
    as: Resources::Markdown

  # Write your own logic to parse your data into components
  Site.posts.each_value do |model|
    match model.relative_url, to: Posts::Show.new(model)
  end
end

Each route takes a Phlex component (or any object that outputs a string from #call). We can either pass the class for a default initialization (we just call .new) or initialize it ourselves.

The resource will be initialized with a component and a url. It is used as the view context for your phlex components.

Match

This works in a similar way to your Rails routes. Match takes a path and a component (either a class or an instance) that it will route to.

match "404", to: Errors::NotFound, as: Resource

Root

Using match you can define a root path like:

match "/", to: Pages::Home

For convenience you can shorten this using root:

root to: Pages::Home

Resources

They initialize the same way ActiveModel objects do. That is they take their keywords and call the setter according to the keys:

def new(**env)
  super().tap do |resource|
    env.each do |key, value|
      resource.send(:"#{key}=", value)
    end
  end
end

The base resource has two core plugins it includes by default:

plugin :prelude
plugin :phlex

Routes define your resources, which in the end are just data objects that contain all the information required to produce the static file that eventually outputs to your Staticky.build_path.

Lets say we had a router defined like:

Staticky.router.define do
  match "foo", to: Component
  match "bar", to: Component
end

Then we could view our resources:

(ruby) Staticky.resources
[#<Staticky::Resource:0x0000711525d82c18
  @component=#<Component:0x0000711525d74848>,
  @destination=#<Pathname:/your-site-folder/build>,
  @uri=#<URI::Generic /foo>,
  @url="foo">,
 #<Staticky::Resource:0x0000711525d82a88
  @component=#<Component:0x0000711525d74208>,
  @destination=#<Pathname:/your-site-folder/build>,
  @uri=#<URI::Generic /bar>,
  @url="bar">]

The prelude plugin provides the following methods:

Method	Description
`filepath`	`Pathname` of where the component's output will be written to
`read`	Read the output of the resource from the file system
`basename`	The file basename (e.g. `index.html`) for the resource
`root?`	Whether or not the resource is the root path

While the phlex plugin provides:

Method	Description
`build`	Call the component and output its result as a string

These resources are used by your site builder to output the files that end up in the Staticky.build_path.

Each resource needs to have a #build method that creates a file in your build folder.

The phlex plugin will call your components with a ViewContext just like ActionView in Rails. But this context is tailored towards your static site.

This view context is a SimpleDelegator to your resource with a few extra methods:

Method	Description
`root?`	Whether or not this resource is for the root page
`current_path`	The path of the current resource being rendered

These are useful for creating pages that hide or show content depending on which path of the site we are building.

Linking to your routes

First you need to include the view helpers somewhere in your component hierarchy:

class Component < Phlex::HTML
  include Staticky::Phlex::ViewHelpers
end

This will add link_to to all your components which uses the router to resolve any URLs via their path.

Here is an example of what the Posts::Show component might look like. We are using a protos component, but you can use plain old Phlex components if you like.

module Posts
  class Show < Component
    param :post, reader: false

    def around_template(&)
      render Layouts::Post.new(class: css[:layout], &)
    end

    def view_template
      # Links can be resolved to component classes if they are unique:
      link_to "Home", Pages::Home
      # They can also resolve via their url:
      link_to "Posts", "/posts"
      # Absolute links are resolved as is:
      link_to "Email", "mailto:[email protected]"

      render Posts::Header.new(@post)
      render Posts::Outline.new(@post, class: css[:outline])
      render Posts::Markdown.new(@post, class: css[:post])
      render Posts::Footer.new(@post)
    end

    private

    def theme
      {
        layout: "bg-background",
        outline: "border",
        post: "max-w-prose mx-auto"
      }
    end
  end
end

The advantage of using link_to over plain old a tags is that changes to your routes will raise errors on invalidated links instead of silently linking to invalid pages.

If your component is unique then you can link directly to them (if its not unique then it will link to the last defined match):

link_to("Some link", Pages::Home)

Otherwise you can link to the path itself:

link_to("Some link", "/")

Building your site

When you are developing your site you run bin/dev to start your development server on http://localhost:9292. This will automatically reload after a short period when you make changes.

Assets are handled by Vite by default, but you can have whatever build process you like just by tweaking Procfile.dev and your Rakefile. You will also need to create your own view helpers for linking your assets.

By default, to build your site you run the builder, usually inside a Rakefile:

require "vite_ruby"

ViteRuby.install_tasks

desc "Precompile assets"
task :environment do
  require "./config/boot"
end

namespace :site do
  desc "Precompile assets"
  task build: :environment do
    Rake::Task["vite:build"].invoke
    Staticky.builder.call
  end
end

This will output your site to ./build by default.

During building, each definition in the router is compiled and handed a special view context which holds information about the resource being rendered such as the current_path.

These are available in your Phlex components under helpers (if you are using the site template). This matches what you might expect when using Phlex in Rails with phlex-rails.

Configuration

We can override the configuration according to the settings defined on the main module:

Staticky.configure do |config|
  config.env = :test
  config.build_path = Pathname.new("dist")
  config.root_path = Pathname(__dir__)
  config.logger = Logger.new($stdout)
  config.server_logger = Logger.new($stdout)
end

Environment

You can define the environment of Staticky through its config.

Staticky.configure do |config|
  config.env = :test
end

This lets you write environment specific code:

if Staticky.env.test?
  # Do something test specific
end

Testing

We can setup a separate testing environment by putting the following into your spec/spec_helper.rb:

Staticky.configure do |config|
  config.root_path = Pathname.new(__dir__).join("fixtures")
  config.build_path = Pathname.new(__dir__).join("fixtures/build")
  config.env = :test
end

This sets up our build path to something different than our development builds.

Staticky uses Dry::System to manage its dependencies which means you can stub them out if you want:

require "dry/system/stubs"

Staticky.application.enable_stubs!

RSpec.configure do |config|
  config.before do
    Staticky.application.stub(:files, Staticky::Filesystem.test)
  end
end

This lets you test your builds using dry-files (actually staticky-files, but the interface is the same with additional capabilities for file folders).

The advantage of this is that we can perform our builds on a temporary in memory file system rather than actually writing to our disk.

The plugins themselves can also be stubbed:

require "dry/system/stubs"

Staticky::Resources::Plugins.enable_stubs!
Staticky::Routing::Plugins.enable_stubs!

RSpec.configure do |config|
  config.before do
    Staticky::Resources::Plugins.stub(:prelude, MyOwnResourcePlugin)
    Staticky::Routing::Plugins.stub(:prelude, MyOwnRoutingPlugin)
  end
end

Development

After checking out the repo, run bin/setup to install dependencies. Then, run bin/rspec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and the created tag, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/nolantait/staticky.

License

The gem is available as open source under the terms of the MIT License.