Rakefile in opal-js_wrap-three-0.1.3 vs Rakefile in opal-js_wrap-three-0.1.4

- old
+ new
@@ -20,5 +20,36 @@
     sh "npx babel #{js} -o lib-opal/js_wrap/three/#{js.split("/jsm/").last}"
   end
 end
 
 task default: %i[build_js build_js_examples]
+
+task :build_gh_pages do
+  require 'fileutils'
+
+  output_dir = __dir__+"/gh-pages/examples/"
+  FileUtils.mkdir_p output_dir
+
+  Dir['examples/*'].each do |example_path|
+    example = File.basename(example_path)
+
+    output_example_dir = output_dir+"/"+example
+    FileUtils.mkdir_p output_example_dir
+
+    Dir.chdir(example_path) do
+      Bundler.with_unbundled_env do
+        `bundle install`
+        `bundle exec opal -qopal/js_wrap/three -c example.rb > #{output_example_dir}/app.js`
+      end
+      File.write("#{output_example_dir}/index.html", <<~HTML)
+        <!DOCTYPE html>
+        <html>
+          <head>
+            <style> body { margin: 0; } </style>
+            <script src="app.js"></script>
+          </head>
+          <body></body>
+        </html>
+      HTML
+    end
+  end
+end
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