hooks: remove non-released null hook

hooks/null/null.go

@@ -1,92 +0,0 @@
-package null
-
-import (
-	"io/ioutil"
-	"sync"
-
-	"github.com/sirupsen/logrus"
-)
-
-// Hook is a hook designed for dealing with logs in test scenarios.
-type Hook struct {
-	// Entries is an array of all entries that have been received by this hook.
-	// For safe access, use the AllEntries() method, rather than reading this
-	// value directly.
-	Entries []*logrus.Entry
-	mu      sync.RWMutex
-}
-
-// NewGlobal installs a test hook for the global logger.
-func NewGlobal() *Hook {
-
-	hook := new(Hook)
-	logrus.AddHook(hook)
-
-	return hook
-
-}
-
-// NewLocal installs a test hook for a given local logger.
-func NewLocal(logger *logrus.Logger) *Hook {
-
-	hook := new(Hook)
-	logger.Hooks.Add(hook)
-
-	return hook
-
-}
-
-// NewNullLogger creates a discarding logger and installs the test hook.
-func NewNullLogger() (*logrus.Logger, *Hook) {
-
-	logger := logrus.New()
-	logger.Out = ioutil.Discard
-
-	return logger, NewLocal(logger)
-
-}
-
-func (t *Hook) Fire(e *logrus.Entry) error {
-	t.mu.Lock()
-	defer t.mu.Unlock()
-	t.Entries = append(t.Entries, e)
-	return nil
-}
-
-func (t *Hook) Levels() []logrus.Level {
-	return logrus.AllLevels
-}
-
-// LastEntry returns the last entry that was logged or nil.
-func (t *Hook) LastEntry() *logrus.Entry {
-	t.mu.RLock()
-	defer t.mu.RUnlock()
-	i := len(t.Entries) - 1
-	if i < 0 {
-		return nil
-	}
-	// Make a copy, for safety
-	e := *t.Entries[i]
-	return &e
-}
-
-// AllEntries returns all entries that were logged.
-func (t *Hook) AllEntries() []*logrus.Entry {
-	t.mu.RLock()
-	defer t.mu.RUnlock()
-	// Make a copy so the returned value won't race with future log requests
-	entries := make([]*logrus.Entry, len(t.Entries))
-	for i, entry := range t.Entries {
-		// Make a copy, for safety
-		e := *entry
-		entries[i] = &e
-	}
-	return entries
-}
-
-// Reset removes all Entries from this test hook.
-func (t *Hook) Reset() {
-	t.mu.Lock()
-	defer t.mu.Unlock()
-	t.Entries = make([]*logrus.Entry, 0)
-}

hooks/null/null_test.go

@@ -1,19 +0,0 @@
-package null
-
-import (
-	"github.com/sirupsen/logrus"
-	"github.com/stretchr/testify/assert"
-	"testing"
-)
-
-func TestNullLogger(t *testing.T) {
-	logger, hook := NewNullLogger()
-	logger.Error("Helloerror")
-
-	assert.Equal(t, 1, len(hook.Entries))
-	assert.Equal(t, logrus.ErrorLevel, hook.LastEntry().Level)
-	assert.Equal(t, "Helloerror", hook.LastEntry().Message)
-
-	hook.Reset()
-	assert.Nil(t, hook.LastEntry())
-}