Copy react assets out of react-source before building the gem

Author: byroot

.gitignore

@@ -4,3 +4,5 @@ Gemfile.lock
 test/dummy/tmp
 gemfiles/*.lock
 *.swp
+/lib/assets/react-source/*
+/lib/assets/javascripts/JSXTransformer.js

Rakefile

@@ -6,6 +6,27 @@ end
 
 Bundler::GemHelper.install_tasks
 
+require 'pathname'
+require 'react/source'
+
+namespace :react do
+  task :copy_assets do
+    assets_path = Pathname.new(__dir__).join('lib/assets')
+    copy_react_asset('JSXTransformer.js', assets_path.join('javascripts/JSXTransformer.js'))
+    copy_react_asset('react.js', assets_path.join('react-source/development/react.js'))
+    copy_react_asset('react.min.js', assets_path.join('react-source/production/react.js'))
+    copy_react_asset('react-with-addons.js', assets_path.join('react-source/development-with-addons/react.js'))
+    copy_react_asset('react-with-addons.min.js', assets_path.join('react-source/production-with-addons/react.js'))
+  end
+
+  def copy_react_asset(source, destination)
+    FileUtils.mkdir_p(destination.dirname.to_s)
+    FileUtils.cp(::React::Source.bundled_path_for(source), destination.to_s)
+  end
+end
+
+Rake::Task[:build].enhance(%w(react:copy_assets))
+
 require 'appraisal'
 require 'rake/testtask'
 

lib/react/rails/railtie.rb

@@ -33,10 +33,11 @@ class Railtie < ::Rails::Railtie
         # contain console logging for invariants and logging to help catch
         # common mistakes. These are all stripped out in the production build.
 
-        directory = (app.config.react.variant || :production).to_s
-        directory += 'with-addons' if app.config.react.addons
-        app.assets.prepend_path ::React::Source.bundled_path_for(directory)
-        app.assets.prepend_path ::React::Source.bundled_path_for('') # JSXTransformer.js
+        directory = app.config.react.variant == :production ? 'production' : 'development'
+        directory += '-with-addons' if app.config.react.addons
+
+        path = Pathname.new('../../../assets/react-source/').join(directory).expand_path(__FILE__).to_s
+        app.assets.append_path(path)
       end
 
 

react-rails.gemspec

@@ -22,14 +22,14 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'poltergeist', '>= 0.3.3'
   s.add_development_dependency 'test-unit', '~> 2.5'
   s.add_development_dependency 'turbolinks', '>= 2.0.0'
+  # If you change this, make sure to update VERSIONS.md:
+  s.add_development_dependency 'react-source', '~> 0.13'
 
 
   s.add_dependency 'coffee-script-source', '~>1.8'
   s.add_dependency 'connection_pool'
   s.add_dependency 'execjs'
   s.add_dependency 'rails', '>= 3.1'
-  # If you change this, make sure to update VERSIONS.md:
-  s.add_dependency 'react-source', '~> 0.13'
   s.add_dependency 'tilt'
 
   s.files = Dir[