class Rails::Paths::Root

Parent:
Object

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.

Attributes

path[RW]

Public Class Methods

new(path) Show source
# File railties/lib/rails/paths.rb, line 51
def initialize(path)
  @path = path
  @root = {}
end

Public Instance Methods

[](path) Show source
# File railties/lib/rails/paths.rb, line 66
def [](path)
  @root[path]
end
[]=(path, value) Show source
# File railties/lib/rails/paths.rb, line 56
def []=(path, value)
  glob = self[path] ? self[path].glob : nil
  add(path, with: value, glob: glob)
end
add(path, options = {}) Show source
# File railties/lib/rails/paths.rb, line 61
def add(path, options = {})
  with = Array(options.fetch(:with, path))
  @root[path] = Path.new(self, path, with, options)
end
all_paths() Show source
# File railties/lib/rails/paths.rb, line 82
def all_paths
  values.tap(&:uniq!)
end
autoload_once() Show source
# File railties/lib/rails/paths.rb, line 86
def autoload_once
  filter_by(&:autoload_once?)
end
autoload_paths() Show source
# File railties/lib/rails/paths.rb, line 94
def autoload_paths
  filter_by(&:autoload?)
end
eager_load() Show source
# File railties/lib/rails/paths.rb, line 90
def eager_load
  filter_by(&:eager_load?)
end
keys() Show source
# File railties/lib/rails/paths.rb, line 74
def keys
  @root.keys
end
load_paths() Show source
# File railties/lib/rails/paths.rb, line 98
def load_paths
  filter_by(&:load_path?)
end
values() Show source
# File railties/lib/rails/paths.rb, line 70
def values
  @root.values
end
values_at(*list) Show source
# File railties/lib/rails/paths.rb, line 78
def values_at(*list)
  @root.values_at(*list)
end

© 2004–2020 David Heinemeier Hansson
Licensed under the MIT License.