Rails template - has_secure_password-based login system (thanks ryanb!)

template.rb

# use like so:
# rails new <projectname> -Tm https://raw.github.com/gist/1780315/509575d448ed95784c90abcb1ef82eac0a682714/template.rb

log "Running rvm"
run "rvm use --create --rvmrc 1.9.2@#{app_name}"

log "Removing index.html"
run "rm public/index.html"
generate "controller welcome index"
route 'root :to => "welcome#index"'

log "Adding bcrypt-ruby"
gem "bcrypt-ruby"

log "Installing rspec"
gem 'rspec-rails', :group => [:development, :test]
run "bundle install"
generate "rspec:install"

log "Creating basic auth system"
create_file "db/migrate/20120208162831_create_users.rb", %Q{class CreateUsers < ActiveRecord::Migration
  def change
    create_table :users do |t|
      t.string :name
      t.string :email
      t.string :password_digest

      t.timestamps
    end
  end
end
}

route "resources :users, :only => ['new', 'create']"
route "resources :sessions, :only => ['new', 'create', 'destroy']"

create_file "app/models/user.rb", %Q{class User < ActiveRecord::Base
  has_secure_password
  attr_accessible :name, :email, :password, :password_confirmation
  validates_presence_of :password, :on => :create
  validates_presence_of :name
  validates_presence_of :email
end
}

create_file "app/controllers/users_controller.rb", %Q{class UsersController < ApplicationController
  force_ssl

  def new
    @user = User.new
  end

  def create
    @user = User.new(params[:user])
    if @user.save
      redirect_to root_url, :notice => 'Thanks for signing up!'
    else
      render :action => :new
    end
  end
end
}

create_file "app/views/users/new.html.erb", %Q{
<h1>Register</h1>
<%= render :partial => "form" %>
}

create_file "app/views/users/_form.html.erb", %Q{
<%= form_for @user do |f| %>
  <% if @user.errors.any? %>
    <div class="error_messages">
      <h2>There was a problem with your registration</h2>
      <ul>
        <% for message in @user.errors.full_messages %>
          <li><%= message %></li>
        <% end %>
      </ul>
    </div>
  <% end %>

  <div class="field">
    <%= f.label :name %>
    <%= f.text_field :name %>
  </div>

  <div class="field">
    <%= f.label :email %>
    <%= f.text_field :email %>
  </div>

  <div class="field">
    <%= f.label :password %>
    <%= f.password_field :password %>
  </div>

  <div class="field">
    <%= f.label :password_confirmation %>
    <%= f.password_field :password_confirmation %>
  </div>

  <div class="actions">
    <%= f.submit %>
  </div>
<% end %>
}

create_file "app/controllers/sessions_controller.rb", %Q{
class SessionsController < ApplicationController
  force_ssl

  def new
  end

  def create
    user = User.find_by_email(params[:email])
    if user && user.authenticate(params[:password])
      session[:user_id] = user.id
      redirect_to root_url, :notice => "Logged in!"
    else
      flash.now.alert = "Invalid email or password"
      render "new"
    end
  end

  def destroy
    session[:user_id] = nil
    redirect_to root_url, :notice => "Logged out!"
  end
end
}

create_file "app/views/sessions/new.html.erb", %Q{
<h1>Please Log In</h1>

<%= render :partial => "form" %>
}

create_file "app/views/sessions/_form.html.erb", %Q{
<%= form_tag sessions_path do %>
  <div class="field">
    <%= label_tag :email %>
    <%= text_field_tag :email %>
  </div>

  <div class="field">
    <%= label_tag :password %>
    <%= password_field_tag :password %>
  </div>

  <div class="actions">
    <%= submit_tag "Log In" %>
  </div>

<% end %>
}

create_file "app/controllers/application_controller.rb", %Q{
class ApplicationController < ActionController::Base
  protect_from_forgery

  private

  def current_user
    @current_user ||= User.find(session[:user_id]) if session[:user_id]
  end
  helper_method :current_user

end
}

log "Creating git repo and adding all files."
git :init
git :add => "."
git :commit => "-m Initial project setup"