fix(webpack): point webpack scripts to Gemfile

Author: ldlsegovia

.rspec

@@ -1,3 +1,2 @@
 --require spec_helper
 --color
---format=doc

docs/CONTRIBUTING.md

@@ -22,7 +22,13 @@ This command loads the dummy app with test data.
 To navigate the application you can run, inside the `/spec/dummy` directory:
 
 ```
-rails s
+bin/rails s
+```
+
+If you are using webpacker, it can be useful to run:
+
+```
+bin/webpack-dev-server
 ```
 
 > It is a good idea to add to the dummy app any new functionality. See for example the file: `/spec/dummy/app/admin/invoices.rb`

spec/dummy/bin/webpack

@@ -4,7 +4,7 @@ ENV["RAILS_ENV"] ||= ENV["RACK_ENV"] || "development"
 ENV["NODE_ENV"]  ||= "development"
 
 require "pathname"
-ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../../Gemfile",
+ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../../../../Gemfile",
   Pathname.new(__FILE__).realpath)
 
 require "bundler/setup"

spec/dummy/bin/webpack-dev-server

@@ -4,7 +4,7 @@ ENV["RAILS_ENV"] ||= ENV["RACK_ENV"] || "development"
 ENV["NODE_ENV"]  ||= "development"
 
 require "pathname"
-ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../../Gemfile",
+ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../../../../Gemfile",
   Pathname.new(__FILE__).realpath)
 
 require "bundler/setup"