AUTH-2596 added new logger package and replaced logrus

logger/manager.go

@@ -0,0 +1,59 @@
+package logger
+
+import "sync"
+
+// SharedWriteManager is a package level variable to allows multiple loggers to use the same write manager.
+// This is useful when multiple loggers will write to the same file to ensure they don't clobber each other.
+var SharedWriteManager = NewWriteManager()
+
+type writeData struct {
+	writeFunc func([]byte)
+	data      []byte
+}
+
+// WriteManager is a logging service that handles managing multiple writing streams
+type WriteManager struct {
+	shutdown  chan struct{}
+	writeChan chan writeData
+	writers   map[string]Service
+	wg        sync.WaitGroup
+}
+
+// NewWriteManager creates a write manager that implements OutputManager
+func NewWriteManager() OutputManager {
+	m := &WriteManager{
+		shutdown:  make(chan struct{}),
+		writeChan: make(chan writeData, 1000),
+	}
+
+	go m.run()
+	return m
+}
+
+// Append adds a message to the writer runloop
+func (m *WriteManager) Append(data []byte, callback func([]byte)) {
+	m.wg.Add(1)
+	m.writeChan <- writeData{data: data, writeFunc: callback}
+}
+
+// Shutdown stops the sync manager service
+func (m *WriteManager) Shutdown() {
+	m.wg.Wait()
+	close(m.shutdown)
+	close(m.writeChan)
+}
+
+// run is the main runloop that schedules log messages
+func (m *WriteManager) run() {
+	for {
+		select {
+		case event, ok := <-m.writeChan:
+			if ok {
+				event.writeFunc(event.data)
+				m.wg.Done()
+			}
+		case <-m.shutdown:
+			return
+		}
+	}
+}