GRN2-45, GRN2-197: Upgrade Rails to 5.2.3 and removed sass-rails gem (#636)

* Removed deprecate sass-rails and replace with sassc-rails

* Upgraded to Rails 5.2.3

* Fixed travis

* Added back Spring code

* Fixed travis again

config/initializers/assets.rb

@@ -5,9 +5,12 @@
 # Version of your assets, change this if you want to expire all your assets.
 Rails.application.config.assets.version = '1.0'
 
-# Add additional assets to the asset load path
+# Add additional assets to the asset load path.
 # Rails.application.config.assets.paths << Emoji.images_path
+# Add Yarn node_modules folder to the asset load path.
+Rails.application.config.assets.paths << Rails.root.join('node_modules')
 
 # Precompile additional assets.
-# application.js, application.css, and all non-JS/CSS in app/assets folder are already added.
-# Rails.application.config.assets.precompile += %w()
+# application.js, application.css, and all non-JS/CSS in the app/assets
+# folder are already added.
+# Rails.application.config.assets.precompile += %w( admin.js admin.css )

config/initializers/content_security_policy.rb

@@ -0,0 +1,27 @@
+# frozen_string_literal: true
+
+# Be sure to restart your server when you modify this file.
+
+# Define an application-wide content security policy
+# For further information see the following documentation
+# https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy
+
+# Rails.application.config.content_security_policy do |policy|
+#   policy.default_src :self, :https
+#   policy.font_src    :self, :https, :data
+#   policy.img_src     :self, :https, :data
+#   policy.object_src  :none
+#   policy.script_src  :self, :https
+#   policy.style_src   :self, :https
+
+#   # Specify URI for violation reports
+#   # policy.report_uri "/csp-violation-report-endpoint"
+# end
+
+# If you are using UJS then enable automatic nonce generation
+# Rails.application.config.content_security_policy_nonce_generator = -> request { SecureRandom.base64(16) }
+
+# Report CSP violations to a specified URI
+# For further information see the following documentation:
+# https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy-Report-Only
+# Rails.application.config.content_security_policy_report_only = true

config/initializers/new_framework_defaults.rb

@@ -1,28 +0,0 @@
-# frozen_string_literal: true
-
-# Be sure to restart your server when you modify this file.
-#
-# This file contains migration options to ease your Rails 5.0 upgrade.
-#
-# Read the Guide for Upgrading Ruby on Rails for more info on each option.
-
-Rails.application.config.action_controller.raise_on_unfiltered_parameters = true
-
-# Enable per-form CSRF tokens. Previous versions had false.
-Rails.application.config.action_controller.per_form_csrf_tokens = true
-
-# Enable origin-checking CSRF mitigation. Previous versions had false.
-Rails.application.config.action_controller.forgery_protection_origin_check = true
-
-# Make Ruby 2.4 preserve the timezone of the receiver when calling `to_time`.
-# Previous versions had false.
-ActiveSupport.to_time_preserves_timezone = true
-
-# Require `belongs_to` associations by default. Previous versions had false.
-Rails.application.config.active_record.belongs_to_required_by_default = true
-
-# Do not halt callback chains when a callback returns false. Previous versions had true.
-ActiveSupport.halt_callback_chains_on_return_false = false
-
-# Configure SSL options to enable HSTS with subdomains. Previous versions had false.
-Rails.application.config.ssl_options = { hsts: { subdomains: true } }