plugin.rb in bootstrap4jekyll-1.0.1.pre

- old
+ new
@@ -7,22 +7,73 @@
   # The plugin functionality that adds the _Twitter-Bootstrap-framework_ to the _Jekyll_ site.
   class Plugin
     # Add the paths of _bootstraps scss partials_ to the global _sass-load-path_.
     # @param [Jekyll::Site] site represents site-wide information and configuration settings.
     def complete_load_paths(site)
-      sass_load_paths = File.expand_path('stylesheets/', ::Bootstrap.assets_path)
+      # fetch the the path to the bootstrap partials.
+      bootstrap_partials = File.expand_path('stylesheets/', ::Bootstrap.assets_path)
 
       # make sure there is a 'sass' key-entry in the config settings.
-      #noinspection RubyStringKeysInHashInspection
       site.config['sass'] = { 'load_paths' => [] } unless site.config['sass']
       sass_config = site.config['sass']
 
       # make sure that the sass_config has a 'load_paths' key-entry.
       sass_config['load_paths'] = [] unless sass_config['load_paths']
       # make sure that the 'load_paths' entry is an array and not just a string
       sass_config['load_paths'] = Array(sass_config['load_paths'])
-      # add bootstraps to load the paths
-      sass_config['load_paths'] << sass_load_paths
+      # add the bootstrap partials to the sass-load-paths
+      sass_config['load_paths'] << bootstrap_partials
     end
 
+    # The assets delivered together with the bootstrap GEM will be added to the site.
+    def add_bootstrap_assets(site)
+      site.static_files.concat jekyllized_bootstrap_files(site) if assets_enabled?(site)
+    end
+
+    private
+
+    # @return [Boolean] true if the user has chosen to include the bootstrap assets to his site.
+    def assets_enabled?(site)
+      return false unless site.config['bootstrap']
+
+      site.config['bootstrap']['assets'] == true
+    end
+
+    # Create a Jekyll::StaticFile for each bootstrap file and assemble them into an array.
+    # @return [Array<Jekyll::StaticFile>] the extra assets that should be included
+    #                                     in the generated site.
+    def jekyllized_bootstrap_files(site)
+      source = File.dirname(bootstrap_assets_path)
+      bootstrap_asset_files.map do |file|
+        dir = File.dirname(file)
+        file_name = File.basename(file)
+        Jekyll::StaticFile.new site, source, dir, file_name
+      end
+    end
+
+    # Scans the bootstrap GEM and creates an array files-paths that should be included
+    # in the generated site.
+    #
+    # @return [Array<String>]  an array files-paths that should be included
+    #                          in the generated site.
+    def bootstrap_asset_files
+      asset_files = []
+      Find.find(bootstrap_assets_path).each do |path|
+        next if File.directory?(path)
+        next if path.include?(stylesheets_path) # do not include the scss files
+
+        asset_files << path.sub(bootstrap_assets_path, 'assets')
+      end
+      asset_files
+    end
+
+    # @return [String] Absolute path to the assets distributed together with the bootstrap GEM.
+    def bootstrap_assets_path
+      @bootstrap_assets_path ||= ::Bootstrap.assets_path
+    end
+
+    # @return [String] Absolute path to the scss partials distributed together with the bootstrap GEM.
+    def stylesheets_path
+      @stylesheets_path ||= File.expand_path 'stylesheets/', bootstrap_assets_path
+    end
   end
 end