Padrino-Relative

This is a simple gem, extracted from this pull request. Uses register, so you can easily toggle it on a per-app basis. Nice and simple.

Installation

Add the following to your Gemfile:

gem 'padrino-relative'

bundle install, and add the following to your app/app.rb file:

register Padrino::Relative

Done.

Usage

Try this without the gem installed:

MyApp.controller :users do
    get :sign_up, '/sign_up' do
        'sign up page'
    end

    get :sign_in, '/sign_in' do
        'sign in page'
    end

    get :list, '/' do
        'listing all users'
    end

    get :show, ':id' do
        "showing user with id #{params[:id]}"
    end
end

Intuition will tell that running padrino rake routes would show us that Padrino is intelligent. We don't see that:

# $ padrino rake routes
=> Executing Rake routes ...

Application: MyApp
URL                     REQUEST  PATH
(:users, :sign, :up)      GET    /sign_up
(:users, :sign, :in)      GET    /sign_in
(:users, :list)           GET    /users
(:users, :show)           GET    /:id

I want the :list route to end up on /users, so I change that block to the following:

get :list, :index do
    'listing all users'
end

Install and setup the gem, run padrino rake routes again, and I get the following:

# $ padrino rake routes
=> Executing Rake routes ...

Application: MyApp
URL                     REQUEST  PATH
(:users, :sign, :up)      GET    /sign_up
(:users, :sign, :in)      GET    /sign_in
(:users, :list)           GET    /users
(:users, :show)           GET    /users/:id

That's it. It makes routes nice and relative, given they don't start with a /. Makes the code more DRY.