Add more logs

log.go

@@ -0,0 +1,36 @@
+package main
+
+import (
+	"os"
+	"time"
+
+	"go.uber.org/zap"
+	"go.uber.org/zap/zapcore"
+)
+
+var log *zap.SugaredLogger
+
+func newDefaultProductionLogEncoder(colorize bool) zapcore.Encoder {
+	encCfg := zap.NewProductionEncoderConfig()
+	// if interactive terminal, make output more human-readable by default
+	encCfg.EncodeTime = func(ts time.Time, encoder zapcore.PrimitiveArrayEncoder) {
+		encoder.AppendString(ts.UTC().Format("2006/01/02 15:04:05.000"))
+	}
+	if colorize {
+		encCfg.EncodeLevel = zapcore.CapitalColorLevelEncoder
+	}
+	return zapcore.NewConsoleEncoder(encCfg)
+}
+
+func setupLogging() {
+	consoleStream := zapcore.Lock(os.Stderr)
+	consoleEncoder := newDefaultProductionLogEncoder(true)
+	noPriority := zap.LevelEnablerFunc(func(lvl zapcore.Level) bool {
+		return true
+	})
+	consoleCore := zapcore.NewCore(consoleEncoder, consoleStream, noPriority)
+
+	logger := zap.New(consoleCore)
+	defer logger.Sync() // flushes buffer, if any
+	log = logger.Sugar().Named("InnkeeperBot")
+}