Class: Rails::Paths::Root

Inherits:
Object show all
Defined in:
railties/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 by 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 command above creates a new root object and add “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.



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

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

Instance Attribute Details

#path ⇒ Object

Returns the value of attribute path



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

def path
  @path
end

Instance Method Details

#[](path) ⇒ Object 



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

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

#[]=(path, value) ⇒ Object 



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# File 'railties/lib/rails/paths.rb', line 53

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

#add(path, options = {}) ⇒ Object 



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# File 'railties/lib/rails/paths.rb', line 58

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

#all_paths ⇒ Object 



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

def all_paths
  values.tap { |v| v.uniq! }
end

#autoload_once ⇒ Object 



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

def autoload_once
  filter_by(:autoload_once?)
end

#autoload_paths ⇒ Object 



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

def autoload_paths
  filter_by(:autoload?)
end

#eager_load ⇒ Object 



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

def eager_load
  filter_by(:eager_load?)
end

#keys ⇒ Object 



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

def keys
  @root.keys
end

#load_paths ⇒ Object 



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

def load_paths
  filter_by(:load_path?)
end

#values ⇒ Object 



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

def values
  @root.values
end

#values_at(*list) ⇒ Object 



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

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