logger(feat) create logger package

logger/logger.go

@@ -0,0 +1,44 @@
+/**
+ * file: logger.go
+ * author: theo technicguy
+ * license: apache-2.0
+ *
+ * This is the logger package, providing global logging
+ * facilities to hoffman-server.
+ */
+
+// The logger package provides logging facilites to the
+// entire hoffman-server project.
+package logger
+
+import (
+	"os"
+
+	"github.com/rs/zerolog"
+	"github.com/rs/zerolog/log"
+)
+
+var (
+	logger    zerolog.Logger = log.Logger.With().Str("service", "logger").Logger()
+	setupDone bool           = false
+)
+
+func Setup() {
+	zerolog.TimeFieldFormat = zerolog.TimeFormatUnixMs
+	log.Logger = zerolog.New(zerolog.ConsoleWriter{Out: os.Stderr}).With().Timestamp().Logger()
+	logger.Debug().Msg("setup logger")
+	setupDone = true
+}
+
+func GetLogger(service string) zerolog.Logger {
+	if !setupDone {
+		Setup()
+	}
+
+	logger.Debug().Str("new-service", service).Msg("generating logger")
+	return log.With().Str("service", service).Logger()
+}
+
+func SetLogLevel(level zerolog.Level) {
+	zerolog.SetGlobalLevel(level)
+}