This object is an extended hash that behaves as root of the Rails::Paths system. It allows you to collect information about how you want to structure your application paths through a Hash-like API. It requires you to give a physical path on initialization.
root = Root.new "/rails"
root.add "app/controllers", eager_load: true
The above command creates a new root object and adds “app/controllers” as a path. This means we can get a Rails::Paths::Path object back like below:
path = root["app/controllers"]
path.eager_load?               # => true
path.is_a?(Rails::Paths::Path) # => true
The Path object is simply an enumerable and allows you to easily add extra paths:
path.is_a?(Enumerable) # => true
path.to_ary.inspect    # => ["app/controllers"]
path << "lib/controllers"
path.to_ary.inspect    # => ["app/controllers", "lib/controllers"]
Notice that when you add a path using add, the path object created already contains the path with the same path value given to add. In some situations, you may not want this behavior, so you can give :with as option.
root.add "config/routes", with: "config/routes.rb"
root["config/routes"].inspect # => ["config/routes.rb"]
The add method accepts the following options as arguments: eager_load, autoload, autoload_once, and glob.
Finally, the Path object also provides a few helpers:
root = Root.new "/rails"
root.add "app/controllers"
root["app/controllers"].expanded # => ["/rails/app/controllers"]
root["app/controllers"].existent # => ["/rails/app/controllers"]
Check the Rails::Paths::Path documentation for more information.
Methods
Attributes
| [RW] | path | 
Class Public methods
new(path)
📝 Source code
# File railties/lib/rails/paths.rb, line 49
      def initialize(path)
        @path = path
        @root = {}
      end
              
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            Instance Public methods
[](path)
📝 Source code
# File railties/lib/rails/paths.rb, line 64
      def [](path)
        @root[path]
      end
              
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            []=(path, value)
📝 Source code
# File railties/lib/rails/paths.rb, line 54
      def []=(path, value)
        glob = self[path] ? self[path].glob : nil
        add(path, with: value, glob: glob)
      end
              
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            add(path, options = {})
📝 Source code
# File railties/lib/rails/paths.rb, line 59
      def add(path, options = {})
        with = Array(options.fetch(:with, path))
        @root[path] = Path.new(self, path, with, options)
      end
              
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            all_paths()
📝 Source code
# File railties/lib/rails/paths.rb, line 80
      def all_paths
        values.tap(&:uniq!)
      end
              
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            autoload_once()
📝 Source code
# File railties/lib/rails/paths.rb, line 84
      def autoload_once
        filter_by(&:autoload_once?)
      end
              
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            autoload_paths()
📝 Source code
# File railties/lib/rails/paths.rb, line 92
      def autoload_paths
        filter_by(&:autoload?)
      end
              
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            eager_load()
📝 Source code
# File railties/lib/rails/paths.rb, line 88
      def eager_load
        filter_by(&:eager_load?)
      end
              
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            keys()
load_paths()
📝 Source code
# File railties/lib/rails/paths.rb, line 96
      def load_paths
        filter_by(&:load_path?)
      end
              
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            values()
📝 Source code
# File railties/lib/rails/paths.rb, line 68
      def values
        @root.values
      end
              
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            values_at(*list)
📝 Source code
# File railties/lib/rails/paths.rb, line 76
      def values_at(*list)
        @root.values_at(*list)
      end
              
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