Class: Rails::Paths::Root

Inherits:
Object
  • Object
show all
Defined in:
lib/rails/paths.rb

Overview

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.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(path) ⇒ Root

Returns a new instance of Root.



47
48
49
50
# File 'lib/rails/paths.rb', line 47

def initialize(path)
  @path = path
  @root = {}
end

Instance Attribute Details

#pathObject

Returns the value of attribute path.



45
46
47
# File 'lib/rails/paths.rb', line 45

def path
  @path
end

Instance Method Details

#[](path) ⇒ Object



62
63
64
# File 'lib/rails/paths.rb', line 62

def [](path)
  @root[path]
end

#[]=(path, value) ⇒ Object



52
53
54
55
# File 'lib/rails/paths.rb', line 52

def []=(path, value)
  glob = self[path] ? self[path].glob : nil
  add(path, with: value, glob: glob)
end

#add(path, options = {}) ⇒ Object



57
58
59
60
# File 'lib/rails/paths.rb', line 57

def add(path, options = {})
  with = Array(options.fetch(:with, path))
  @root[path] = Path.new(self, path, with, options)
end

#all_pathsObject



78
79
80
# File 'lib/rails/paths.rb', line 78

def all_paths
  values.tap(&:uniq!)
end

#autoload_onceObject



82
83
84
# File 'lib/rails/paths.rb', line 82

def autoload_once
  filter_by(&:autoload_once?)
end

#autoload_pathsObject



90
91
92
# File 'lib/rails/paths.rb', line 90

def autoload_paths
  filter_by(&:autoload?)
end

#eager_loadObject



86
87
88
# File 'lib/rails/paths.rb', line 86

def eager_load
  filter_by(&:eager_load?)
end

#keysObject



70
71
72
# File 'lib/rails/paths.rb', line 70

def keys
  @root.keys
end

#load_pathsObject



94
95
96
# File 'lib/rails/paths.rb', line 94

def load_paths
  filter_by(&:load_path?)
end

#valuesObject



66
67
68
# File 'lib/rails/paths.rb', line 66

def values
  @root.values
end

#values_at(*list) ⇒ Object



74
75
76
# File 'lib/rails/paths.rb', line 74

def values_at(*list)
  @root.values_at(*list)
end