add springified binstubs

also switch rails3 lockfile to the default, so the spring binstub can
use the default lockfile and see itself

Change-Id: Id10cbc3df010671a59c73137a77583e2c2e0e5a8
Reviewed-on: https://gerrit.instructure.com/37802
Tested-by: Jenkins <[email protected]>
Reviewed-by: Cameron Sutter <[email protected]>
Product-Review: Cody Cutrer <[email protected]>
QA-Review: Cody Cutrer <[email protected]>

.gitignore

@@ -23,6 +23,7 @@
 /db/*sql
 /exports/
 Gemfile.lock
+Gemfile.lock2
 Gemfile.lock3
 /log/
 /public/app/

Gemfile.d/_before.rb

@@ -46,12 +46,12 @@
   ruby '1.9.3', :engine => 'ruby', :engine_version => '1.9.3'
 end
 
-# force a different lockfile for rails 3
-if CANVAS_RAILS3
+# force a different lockfile for rails 2
+if CANVAS_RAILS2
   Bundler::SharedHelpers.class_eval do
     class << self
       def default_lockfile
-        Pathname.new("#{Bundler.default_gemfile}.lock3")
+        Pathname.new("#{Bundler.default_gemfile}.lock2")
       end
     end
   end

bin/rails

@@ -0,0 +1,10 @@
+#!/usr/bin/env ruby
+begin
+  load File.expand_path("../spring", __FILE__)
+rescue LoadError
+end
+# This command will automatically be run when you run "rails" with Rails 3 gems installed from the root of your application.
+
+APP_PATH = File.expand_path('../../config/application',  __FILE__)
+require File.expand_path('../../config/boot',  __FILE__)
+require 'rails/commands'

bin/rake

@@ -0,0 +1,7 @@
+#!/usr/bin/env ruby
+begin
+  load File.expand_path("../spring", __FILE__)
+rescue LoadError
+end
+require 'bundler/setup'
+load Gem.bin_path('rake', 'rake')

bin/rspec

@@ -0,0 +1,7 @@
+#!/usr/bin/env ruby
+begin
+  load File.expand_path("../spring", __FILE__)
+rescue LoadError
+end
+require 'bundler/setup'
+load Gem.bin_path('rspec-core', 'rspec')

bin/spring

@@ -0,0 +1,18 @@
+#!/usr/bin/env ruby
+
+# This file loads spring without using Bundler, in order to be fast
+# It gets overwritten when you run the `spring binstub` command
+
+unless defined?(Spring)
+  require "rubygems"
+  require "bundler"
+
+  if match = Bundler.default_lockfile.read.match(/^GEM$.*?^    (?:  )*spring \((.*?)\)$.*?^$/m)
+    ENV["GEM_PATH"] = ([Bundler.bundle_path.to_s] + Gem.path).join(File::PATH_SEPARATOR)
+    ENV["GEM_HOME"] = ""
+    Gem.paths = ENV
+
+    gem "spring", match[1]
+    require "spring/binstub"
+  end
+end