Add additional yard commentsyard

Signed-off-by: Tim Smith <tsmith@chef.io>

5 files changed, 24 insertions, 2 deletions

diff --git a/lib/ohai/dsl/plugin.rb b/lib/ohai/dsl/plugin.rb
index f7ed9286..b102edc0 100644
--- a/lib/ohai/dsl/plugin.rb
+++ b/lib/ohai/dsl/plugin.rb
@@ -43,6 +43,7 @@ module Ohai
     end
   end
 
+  # @param name [String]
   def self.plugin(name, &block)
     raise Ohai::Exceptions::InvalidPluginName, "#{name} is not a valid plugin name. A valid plugin name is a symbol which begins with a capital letter and contains no underscores" unless NamedPlugin.valid_name?(name)
 
@@ -61,6 +62,8 @@ module Ohai
   end
 
   # Cross platform /dev/null to support testability
+  #
+  # @return [String]
   def self.dev_null
     if RUBY_PLATFORM =~ /mswin|mingw|windows/
       "NUL"
diff --git a/lib/ohai/hints.rb b/lib/ohai/hints.rb
index a3501ea0..fd568aa6 100644
--- a/lib/ohai/hints.rb
+++ b/lib/ohai/hints.rb
@@ -26,7 +26,7 @@ module Ohai
       @hints = {}
     end
 
-    # parse the JSON conents of a hint file. Return an empty hash if the file has
+    # parse the JSON contents of a hint file. Return an empty hash if the file has
     # no JSON content
     # @param filename [String] the hint file path
     def self.parse_hint_file(filename)
diff --git a/lib/ohai/loader.rb b/lib/ohai/loader.rb
index 4efa16c2..72da2163 100644
--- a/lib/ohai/loader.rb
+++ b/lib/ohai/loader.rb
@@ -62,12 +62,18 @@ module Ohai
 
     # Searches all plugin paths and returns an Array of PluginFile objects
     # representing each plugin file.
+    #
+    # @param dir [Array, String] directory/directories to load plugins from
+    # @return [Array<Ohai::Loader::PluginFile>]
     def plugin_files_by_dir(dir = Ohai.config[:plugin_path])
       Array(dir).inject([]) do |plugin_files, plugin_path|
         plugin_files + PluginFile.find_all_in(plugin_path)
       end
     end
 
+    # loads all plugin classes
+    #
+    # @return [Array<String>]
     def load_all
       plugin_files_by_dir.each do |plugin_file|
         load_plugin_class(plugin_file.path, plugin_file.plugin_root)
@@ -76,6 +82,8 @@ module Ohai
       collect_v7_plugins
     end
 
+    # load additional plugins classes from a given directory
+    # @param from [String] path to a directory with additional plugins to load
     def load_additional(from)
       from = [ Ohai.config[:plugin_path], from].flatten
       plugin_files_by_dir(from).collect do |plugin_file|
@@ -88,6 +96,9 @@ module Ohai
     # Load a specified file as an ohai plugin and creates an instance of it.
     # Not used by ohai itself, but can be used to load a plugin for testing
     # purposes.
+    #
+    # @param plugin_path [String]
+    # @param plugin_dir_path [String]
     def load_plugin(plugin_path, plugin_dir_path = nil)
       plugin_class = load_plugin_class(plugin_path, plugin_dir_path)
       return nil unless plugin_class.kind_of?(Class)
diff --git a/lib/ohai/log.rb b/lib/ohai/log.rb
index 667caf3c..91a8c78e 100644
--- a/lib/ohai/log.rb
+++ b/lib/ohai/log.rb
@@ -22,7 +22,7 @@ module Ohai
   class Log
     extend Mixlib::Log
 
-    # this class loading initalization is so that we don't lose early logger
+    # this class loading initialization is so that we don't lose early logger
     # messages when run from the CLI?
     init(STDERR)
     level = :info # rubocop:disable Lint/UselessAssignment
diff --git a/lib/ohai/system.rb b/lib/ohai/system.rb
index 7d5d973e..22ba8620 100644
--- a/lib/ohai/system.rb
+++ b/lib/ohai/system.rb
@@ -53,6 +53,10 @@ module Ohai
       reset_system
     end
 
+    # clears the current collected data, clears the provides map for plugins,
+    # refreshes hints, and reconfigures ohai. In short this gets Ohai into a first run state
+    #
+    # @return [void]
     def reset_system
       @data = Mash.new
       @provides_map = ProvidesMap.new
@@ -73,6 +77,10 @@ module Ohai
       @data[key]
     end
 
+    # resets the system and loads then runs the plugins
+    #
+    # @param [Array<String>] attribute_filter
+    # @return [void]
     def all_plugins(attribute_filter = nil)
       # Reset the system when all_plugins is called since this function
       # can be run multiple times in order to pick up any changes in the