Test Multiple Rails versions with Appraisal

Closes [tricknotes#302].

Configures project according to [Appraisal installation
instructions][appraisal].

[tricknotes#302]: tricknotes#302
[appraisal]: https://github.com/thoughtbot/appraisal

.gitignore

@@ -11,6 +11,7 @@
 *.so
 *.o
 *.a
+*.gemfile.lock
 mkmf.log
 /log/
 spec/dummy/my-app/

.travis.yml

@@ -11,7 +11,11 @@ before_install:
 - echo '--colour' > ~/.rspec
 - 'echo ''gem: --no-document'' > ~/.gemrc'
 before_script: bin/setup
-script: bin/rspec
+script: bin/rake
 env:
   global:
     secure: RbWKxwfpzyQ5uv/jYH68/0J3Y9xe7rQbGULsWZT98FxZcVWLoOFlPPITmnmEK32CjQUww8iMz50FRLxFNmXg8prt1KzpzikVdIZLmYg1NFShI8+JOFhJzwCuk/LLybNUmydejR58FJvV9gS8NYqMh5leFkDM3OwLxhWdcE8hDDQ=
+gemfile:
+  - gemfiles/3.2.gemfile
+  - gemfiles/4.1.gemfile
+  - gemfiles/4.2.gemfile

Appraisals

@@ -0,0 +1,11 @@
+appraise "3.2" do
+  gem "rails", git: "https://github.com/rails/rails.git", branch: "3-2-stable"
+end
+
+appraise "4.1" do
+  gem "rails", "~> 4.1.1"
+end
+
+appraise "4.2" do
+  gem "rails", "~> 4.2.1"
+end

Gemfile

@@ -2,6 +2,7 @@ source "https://rubygems.org"
 
 gemspec
 
+gem "appraisal"
 gem "rails", "4.2.4"
 gem "pry"
 

Rakefile

@@ -1,2 +1,19 @@
+require "rubygems"
+require "bundler/setup"
 require "bundler/gem_tasks"
+require "appraisal"
+require "rspec/core/rake_task"
 
+task(:default).clear
+task default: :spec
+
+if defined? RSpec
+  task(:spec).clear
+  RSpec::Core::RakeTask.new(:spec) do |t|
+    t.verbose = false
+  end
+end
+
+if !ENV["APPRAISAL_INITIALIZED"] && !ENV["TRAVIS"]
+  task default: :appraisal
+end

bin/appraisal

@@ -0,0 +1,16 @@
+#!/usr/bin/env ruby
+#
+# This file was generated by Bundler.
+#
+# The application 'appraisal' is installed as part of a gem, and
+# this file is here to facilitate running it.
+#
+
+require 'pathname'
+ENV['BUNDLE_GEMFILE'] ||= File.expand_path("../../Gemfile",
+  Pathname.new(__FILE__).realpath)
+
+require 'rubygems'
+require 'bundler/setup'
+
+load Gem.bin_path('appraisal', 'appraisal')

bin/rake

@@ -0,0 +1,16 @@
+#!/usr/bin/env ruby
+#
+# This file was generated by Bundler.
+#
+# The application 'rake' is installed as part of a gem, and
+# this file is here to facilitate running it.
+#
+
+require 'pathname'
+ENV['BUNDLE_GEMFILE'] ||= File.expand_path("../../Gemfile",
+  Pathname.new(__FILE__).realpath)
+
+require 'rubygems'
+require 'bundler/setup'
+
+load Gem.bin_path('rake', 'rake')

bin/setup

@@ -26,3 +26,8 @@ cd ${root}/spec/dummy/my-app &&
   bower install
 
 cd ${root}/spec/dummy && bundle exec rake ember:install
+
+# Only if this isn't CI
+if [ -z "$CI" ]; then
+  bin/appraisal install
+fi

gemfiles/3.2.gemfile

@@ -0,0 +1,20 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "appraisal"
+gem "test-unit", "~> 3.0"
+gem "rails", :git => "https://github.com/rails/rails.git", :branch => "3-2-stable"
+gem "pry"
+
+group :development, :test do
+  gem "high_voltage", "~> 2.4.0"
+  gem "rspec-rails", "~> 3.3.0"
+end
+
+group :test do
+  gem "poltergeist", "~> 1.8.0"
+  gem "codeclimate-test-reporter", :require => nil
+end
+
+gemspec :path => "../"

gemfiles/4.1.gemfile

@@ -0,0 +1,19 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "appraisal"
+gem "rails", "~> 4.1.1"
+gem "pry"
+
+group :development, :test do
+  gem "high_voltage", "~> 2.4.0"
+  gem "rspec-rails", "~> 3.3.0"
+end
+
+group :test do
+  gem "poltergeist", "~> 1.8.0"
+  gem "codeclimate-test-reporter", :require => nil
+end
+
+gemspec :path => "../"

gemfiles/4.2.gemfile

@@ -0,0 +1,19 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "appraisal"
+gem "rails", "~> 4.2.1"
+gem "pry"
+
+group :development, :test do
+  gem "high_voltage", "~> 2.4.0"
+  gem "rspec-rails", "~> 3.3.0"
+end
+
+group :test do
+  gem "poltergeist", "~> 1.8.0"
+  gem "codeclimate-test-reporter", :require => nil
+end
+
+gemspec :path => "../"

lib/ember_cli/controller_extension.rb

@@ -1,13 +1,19 @@
 module EmberCli
   module ControllerExtension
     def self.included(base)
-      base.before_action do
+      build_ember_app = lambda do
         app = params[:ember_app]
 
         if app.present?
           EmberCli[app].build
         end
       end
+
+      if base.respond_to?(:before_action)
+        base.before_action(&build_ember_app)
+      else
+        base.before_filter(&build_ember_app)
+      end
     end
   end
 end