ContainsString checks if a string is contained in an array of strings.

DecodeAttribute is used to decode strings into base64 encoded strings.

Pulls specified filenames out of a tar or tar.gz, depending on if isGzip is set.

NewSingleton -- new singleton.

NewSingletonNoConstructor -- returns a singleton without a constructor.

Helper function to randomize the order of an array.

StringArrayToDB converts a string array into a single string, using pipe as a delimiter.

WaitGroupDoneOrTimeout waits for the waitgroup for the specified max timeout.

Executor is the struct used by most of the code: handlerResourceProvider, dynamic_lists, and system.

Observable type has a list of Listener objects that are called with a given session and 'extra information' put into an interface{} object when NotifyListeners are called.

Singleton implements a singleton.

ThreadsafeObservable is an observable that is threadsafe.

ExecutorInterface allows us to mock calls to exec.Cmd.

ObservableInterface is an interface all Observables should adhere to.

Listener type for geoip.