Share the bundler install path.

Author: cupakromer

.travis.yml

@@ -3,7 +3,7 @@ before_script:
   - rm -f bin/rails
   - bundle exec rails --version
 script: "script/run_build 2>&1"
-bundler_args: "--binstubs"
+bundler_args: "--binstubs --path ../bundle"
 before_install:
   # Downgrade bundler to work around https://github.com/bundler/bundler/issues/3004
   - gem install bundler -v=1.5.3

Rakefile

@@ -52,11 +52,11 @@ namespace :generate do
 
       # Rails 4 cannot use a `rails` binstub generated by Bundler
       sh "rm -f #{bindir}/rails"
-      sh "bundle exec rails new ./tmp/example_app --skip-javascript --skip-sprockets --skip-git --skip-test-unit --template=templates/generate_app.rb"
+      sh "bundle exec rails new ./tmp/example_app --skip-javascript --skip-sprockets --skip-git --skip-test-unit --skip-bundle --template=templates/generate_app.rb"
 
       if test ?d, bindir
         in_example_app do
-          sh "bundle install --gemfile ./Gemfile --local"
+          sh "bundle install --gemfile ./Gemfile --path ../../../bundle"
           # Rails 4 cannot use a `rails` binstub generated by Bundler
           sh "bundle binstubs rspec-core rake --force"
           sh "bundle binstubs rails" unless File.exist?("bin/rails")