hooks: expose LevelHooks type

hooks.go

@@ -11,11 +11,11 @@ type Hook interface {
 }
 
 // Internal type for storing the hooks on a logger instance.
-type levelHooks map[Level][]Hook
+type LevelHooks map[Level][]Hook
 
 // Add a hook to an instance of logger. This is called with
 // `log.Hooks.Add(new(MyHook))` where `MyHook` implements the `Hook` interface.
-func (hooks levelHooks) Add(hook Hook) {
+func (hooks LevelHooks) Add(hook Hook) {
 	for _, level := range hook.Levels() {
 		hooks[level] = append(hooks[level], hook)
 	}
@@ -23,7 +23,7 @@ func (hooks levelHooks) Add(hook Hook) {
 
 // Fire all the hooks for the passed level. Used by `entry.log` to fire
 // appropriate hooks for a log entry.
-func (hooks levelHooks) Fire(level Level, entry *Entry) error {
+func (hooks LevelHooks) Fire(level Level, entry *Entry) error {
 	for _, hook := range hooks[level] {
 		if err := hook.Fire(entry); err != nil {
 			return err

logger.go

@@ -14,7 +14,7 @@ type Logger struct {
 	// Hooks for the logger instance. These allow firing events based on logging
 	// levels and log entries. For example, to send errors to an error tracking
 	// service, log to StatsD or dump the core on fatal errors.
-	Hooks levelHooks
+	Hooks LevelHooks
 	// All log entries pass through the formatter before logged to Out. The
 	// included formatters are `TextFormatter` and `JSONFormatter` for which
 	// TextFormatter is the default. In development (when a TTY is attached) it
@@ -37,7 +37,7 @@ type Logger struct {
 //    var log = &Logger{
 //      Out: os.Stderr,
 //      Formatter: new(JSONFormatter),
-//      Hooks: make(levelHooks),
+//      Hooks: make(LevelHooks),
 //      Level: logrus.DebugLevel,
 //    }
 //
@@ -46,7 +46,7 @@ func New() *Logger {
 	return &Logger{
 		Out:       os.Stderr,
 		Formatter: new(TextFormatter),
-		Hooks:     make(levelHooks),
+		Hooks:     make(LevelHooks),
 		Level:     InfoLevel,
 	}
 }