A simple rake task to update Ember and Ember Data to a build from master. (requires ember-rails)

ember.rake

# A simple rake task to update Ember and Ember Data to a build from master.
#
# Assumptions:
# - You're using the `ember-rails` gem
# - You are requiring rember with sprockets with something like `require ember`
# - You have added these gems to your Gemfile:
#   - gem "rake-pipeline", :git => "https://github.com/livingsocial/rake-pipeline.git"
#   - gem "rake-pipeline-web-filters", :git => "https://github.com/wycats/rake-pipeline-web-filters.git"
#   - gem 'colored'
#
# Usage:
#
#   $ rake ember:update
#
#  This will place a development build (with comments and debug tags) into:
#   vendor/assets/ember/development/ember.js
#  and a production non-minified build (no comments or debug tags) into:
#   vendor/assets/ember/production/ember.js
#
# Written by Ivan Vanderbyl ([email protected]) December, 2012

def say(msg, &block)
  print "#{msg}..."

  if block_given?
    quietly do
      yield
    end
    puts " Done."
  end
end

directory "tmp"

file "tmp/ember.js" => "tmp" do
  cd "tmp" do
    sh "git clone https://github.com/emberjs/ember.js.git"
  end
end

file "tmp/ember-data.js" => "tmp" do
  cd "tmp" do
    sh "git clone https://github.com/emberjs/data.git ember-data.js"
  end
end

task :update_ember_git => ["tmp/ember.js"] do
  require 'rake-pipeline'

  say "Checking out latest changes for ember.js" do
    cd "tmp/ember.js" do
      sh "git fetch origin"
      sh "git reset --hard origin/master"
    end
  end
end

task :update_ember_data_git => ["tmp/ember-data.js"] do
  require 'rake-pipeline'

  say "Checking out latest changes for emberjs/data" do
    cd "tmp/ember-data.js" do
      sh "git fetch origin"
      sh "git reset --hard origin/master"
    end
  end
end

task :cleanup_build_files do
  say("Removing build files...") do
    rm_f('tmp/ember.js')
    rm_f('tmp/ember-data.js')
  end
end

file "tmp/ember-data.js/dist/ember-data.js"
file "tmp/ember.js/dist/ember.js"

file "vendor/assets/ember/development/ember.js" => [:update_ember_git, "tmp/ember.js/dist/ember.js"] do
  say "Building Ember.js" do
    cd "tmp/ember.js" do
      sh "rake clean dist"
    end
  end
  say "Copying Ember.js to assets" do
    cd "tmp/ember.js" do
      cp "dist/ember.js", "../../vendor/assets/ember/development/ember.js"
      cp "dist/ember.prod.js", "../../vendor/assets/ember/production/ember.js"
    end
  end
end

file "vendor/assets/ember/development/ember-data.js" => [:update_ember_data_git, "tmp/ember-data.js/dist/ember-data.js"] do
  say "Building Ember Data" do
    cd "tmp/ember-data.js" do
      sh "rake clean dist"
    end
  end
  say "Copying Ember Data to assets" do
    cd "tmp/ember-data.js" do
      cp "dist/ember-data.js", "../../vendor/assets/ember/development/ember-data.js"
      cp "dist/ember-data.prod.js", "../../vendor/assets/ember/production/ember-data.js"
    end
  end
end

namespace :ember do
  desc "Update Ember.js to master (vendor/assets/ember/development/ember.js)"
  task :update => [:core, :data]
  task :core => ["vendor/assets/ember/development/ember.js", :cleanup_build_files]
  task :data => ["vendor/assets/ember/development/ember-data.js", :cleanup_build_files]
end

Gemfile

group :development do
  gem "rake-pipeline", :git => "https://github.com/livingsocial/rake-pipeline.git"
  gem "rake-pipeline-web-filters", :git => "https://github.com/wycats/rake-pipeline-web-filters.git"
  gem 'colored'
end