Brut RB

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Getting Started ​

Brut is developed alongside a separate gem called mkbrut, which allows you to create a new Brut app. It will set up your dev environment as well.

Get mkbrut ​

The simplest way to use mkbrut is to use an existing Docker image. You don't have to install or configure Ruby:

docker run \
       -v "$PWD":"$PWD" \
       -w "$PWD" \
       -it \
       thirdtank/mkbrut \
       mkbrut my-new-app

If you already have Ruby 3.4 installed, you can install mkbrut directly:

> gem install mkbrut
> mkbrut my-new-app

Init Your App ​

A Brut app just needs a name, which will be used to derive a few more useful values. For now:

docker run \
       -v "$PWD":"$PWD" \
       -w "$PWD" \
       -it \
       thirdtank/mkbrut \
       mkbrut my-new-app
mkbrut my-new-app

This will create your new app, along with some demo routes, components, handlers, and tests. If this is your first time using Brut, we recommend you examine these demo components.

To create your app without the demo components:

docker run \
       -v "$PWD":"$PWD" \
       -w "$PWD" \
       -it \
       thirdtank/mkbrut \
       mkbrut my-new-app --no-demo
mkbrut my-new-app --no-demo

Start Your Dev Environment ​

Brut includes a dev environment based on Docker. It uses Docker compose to run a Docker container where your app will run, a Docker container for Postgres, and a Docker container for local observability via OpenTelemetry.

  1. Install Docker

  2. Build the image used to create you app's container:

    > dx/build

  3. Start up all the containers:

    > dx/start

  4. Now, install your aps gems and set it all up:

    > dx/exec bin/setup

Now, you're ready to go. See Dev Environemnt for details on how this all works.

NOTE

Instead of running dx/exec in front of your commands, you can instead do dx/exec bash to "log in" to the running container. You'll have a normal prompt and can issue commands directly from there.

Run the App ​

dx/exec bin/dev

You can now visit your app at localhost:6502

You can make changes and see them when you reload. Open up app/src/front_end/pages/home_page.rb in your editor running on your computer and change the h1 to look like so:

ruby
class HomePage < AppPage
  def page_template
    div(class: "flex flex-column items-center justify-center h-80vh") do
      img(src: "/static/images/icon.png", class: "h-50")
      h1(class: "ff-sans ma-0 lh-title f-5") do
        "Welcome to My New App!"
      end

      # ...

When you reload your browser, you'll see your change

Run the Tests ​

There are a few tests you can run, as well as some checks that you aren't using RubyGems with security vulnerabilities. Run it all now with bin/ci:

dx/exec bin/ci

Now Build The Rest of Your App 🦉 ​

You can follow the tutorial, check out the conceptual overview, or dive straight into the API docs. You might also want to check out the docs for LSP Support.