logger pkg

pkg/logger/logger.go

@@ -0,0 +1,60 @@
+package logger
+
+import (
+	"os"
+
+	"github.com/davecgh/go-spew/spew"
+	"github.com/op/go-logging"
+)
+
+// Log is global logger
+var Log = logging.MustGetLogger("myLogger")
+var logBackendLeveled logging.LeveledBackend
+
+// SetLogLevel sets log level for global logger (debug, info, notice, warning, error)
+func SetLogLevel(level string) {
+	logBackendLevel := logging.NOTICE
+	switch level {
+	case "debug":
+		logBackendLevel = logging.DEBUG
+		break
+
+	case "info":
+		logBackendLevel = logging.INFO
+		break
+
+	case "notice":
+		logBackendLevel = logging.NOTICE
+		break
+
+	case "warning":
+		logBackendLevel = logging.WARNING
+		break
+
+	case "error":
+		logBackendLevel = logging.ERROR
+		break
+
+	}
+
+	logBackendLeveled.SetLevel(logBackendLevel, "")
+}
+
+// configureLogger sets logger backend and level
+func configureLogger() {
+	logBackend := logging.NewLogBackend(os.Stderr, "", 0)
+	logBackendFormatter := logging.NewBackendFormatter(logBackend, logging.MustStringFormatter(
+		`%{color}%{time:15:04:05.000} %{shortfunc} ▶ %{level:.4s} %{id:03x}%{color:reset} %{message}`,
+	))
+	logBackendLeveled = logging.AddModuleLevel(logBackendFormatter)
+	logBackendLeveled.SetLevel(logging.NOTICE, "")
+	logging.SetBackend(logBackendLeveled)
+}
+
+func init() {
+	spew.Config.DisablePointerAddresses = true
+	spew.Config.DisableCapacities = true
+	spew.Config.DisableMethods = true
+	spew.Config.DisablePointerMethods = true
+	configureLogger()
+}