Add bin and edit workflow

bin/gems/jekyll-4.4.1/lib/jekyll/theme.rb

@@ -0,0 +1,90 @@
+# frozen_string_literal: true
+
+module Jekyll
+  class Theme
+    extend Forwardable
+    attr_reader   :name
+
+    def_delegator :gemspec, :version, :version
+
+    def initialize(name)
+      @name = name.downcase.strip
+      Jekyll.logger.debug "Theme:", name
+      Jekyll.logger.debug "Theme source:", root
+    end
+
+    def root
+      # Must use File.realpath to resolve symlinks created by rbenv
+      # Otherwise, Jekyll.sanitized path with prepend the unresolved root
+      @root ||= File.realpath(gemspec.full_gem_path)
+    rescue Errno::ENOENT, Errno::EACCES, Errno::ELOOP
+      raise "Path #{gemspec.full_gem_path} does not exist, is not accessible or includes " \
+            "a symbolic link loop"
+    end
+
+    # The name of theme directory
+    def basename
+      @basename ||= File.basename(root)
+    end
+
+    def includes_path
+      @includes_path ||= path_for "_includes"
+    end
+
+    def layouts_path
+      @layouts_path ||= path_for "_layouts"
+    end
+
+    def sass_path
+      @sass_path ||= path_for "_sass"
+    end
+
+    def assets_path
+      @assets_path ||= path_for "assets"
+    end
+
+    def data_path
+      @data_path ||= path_for "_data"
+    end
+
+    def runtime_dependencies
+      gemspec.runtime_dependencies
+    end
+
+    private
+
+    def path_for(folder)
+      path = realpath_for(folder)
+      path if path && File.directory?(path)
+    end
+
+    def realpath_for(folder)
+      # This resolves all symlinks for the theme subfolder and then ensures that the directory
+      # remains inside the theme root. This prevents the use of symlinks for theme subfolders to
+      # escape the theme root.
+      # However, symlinks are allowed to point to other directories within the theme.
+      Jekyll.sanitized_path(root, File.realpath(Jekyll.sanitized_path(root, folder.to_s)))
+    rescue Errno::ENOENT, Errno::EACCES, Errno::ELOOP => e
+      log_realpath_exception(e, folder)
+      nil
+    end
+
+    def log_realpath_exception(err, folder)
+      return if err.is_a?(Errno::ENOENT)
+
+      case err
+      when Errno::EACCES
+        Jekyll.logger.error "Theme error:", "Directory '#{folder}' is not accessible."
+      when Errno::ELOOP
+        Jekyll.logger.error "Theme error:", "Directory '#{folder}' includes a symbolic link loop."
+      end
+    end
+
+    def gemspec
+      @gemspec ||= Gem::Specification.find_by_name(name)
+    rescue Gem::LoadError
+      raise Jekyll::Errors::MissingDependencyException,
+            "The #{name} theme could not be found."
+    end
+  end
+end