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-rw-r--r--railties/lib/plugin/loader.rb123
1 files changed, 0 insertions, 123 deletions
diff --git a/railties/lib/plugin/loader.rb b/railties/lib/plugin/loader.rb
deleted file mode 100644
index d5ad3aa8e3..0000000000
--- a/railties/lib/plugin/loader.rb
+++ /dev/null
@@ -1,123 +0,0 @@
-module Rails
- module Plugin
- class Loader
- include Comparable
- attr_reader :initializer, :directory, :name
-
- class << self
- def load(*args)
- new(*args).load
- end
- end
-
- def initialize(initializer, directory)
- @initializer = initializer
- @directory = directory
- @name = File.basename(directory)
- end
-
- def load
- return false if loaded?
- report_nonexistant_or_empty_plugin!
- add_to_load_path!
- register_plugin_as_loaded
- evaluate
- true
- end
-
- def loaded?
- initializer.loaded_plugins.include?(name)
- end
-
- def plugin_path?
- File.directory?(directory) && (has_lib_directory? || has_init_file?)
- end
-
- def enabled?
- !explicit_plugin_loading_order? || registered?
- end
-
- def registered?
- explicit_plugin_loading_order? && registered_plugins.include?(name)
- end
-
- def plugin_does_not_exist!(plugin_name = name)
- raise LoadError, "Can not find the plugin named: #{plugin_name}"
- end
-
- private
- # The plugins that have been explicitly listed with config.plugins. If this list is nil
- # then it means the client does not care which plugins or in what order they are loaded,
- # so we load all in alphabetical order. If it is an empty array, we load no plugins, if it is
- # non empty, we load the named plugins in the order specified.
- def registered_plugins
- config.plugins
- end
-
- def explicit_plugin_loading_order?
- !registered_plugins.nil?
- end
-
- def report_nonexistant_or_empty_plugin!
- plugin_does_not_exist! unless plugin_path?
- end
-
- def lib_path
- File.join(directory, 'lib')
- end
-
- def init_path
- File.join(directory, 'init.rb')
- end
-
- def has_lib_directory?
- File.directory?(lib_path)
- end
-
- def has_init_file?
- File.file?(init_path)
- end
-
- def add_to_load_path!
- # Add lib to load path *after* the application lib, to allow
- # application libraries to override plugin libraries.
- if has_lib_directory?
- application_lib_index = $LOAD_PATH.index(application_library_path) || 0
- $LOAD_PATH.insert(application_lib_index + 1, lib_path)
- Dependencies.load_paths << lib_path
- Dependencies.load_once_paths << lib_path
- end
- end
-
- def application_library_path
- File.join(RAILS_ROOT, 'lib')
- end
-
- # Allow plugins to reference the current configuration object
- def config
- initializer.configuration
- end
-
- def register_plugin_as_loaded
- initializer.loaded_plugins << name
- end
-
- # Evaluate in init.rb
- def evaluate
- silence_warnings { eval(IO.read(init_path), binding, init_path)} if has_init_file?
- end
-
- def <=>(other_plugin_loader)
- if explicit_plugin_loading_order?
- if non_existent_plugin = [self, other_plugin_loader].detect {|plugin| !registered_plugins.include?(plugin.name)}
- plugin_does_not_exist!(non_existent_plugin.name)
- end
-
- registered_plugins.index(name) <=> registered_plugins.index(other_plugin_loader.name)
- else
- name <=> other_plugin_loader.name
- end
- end
- end
- end
-end