Add zerolog logging adapter

log/zerologadapter/adapter.go

@@ -0,0 +1,40 @@
+// Package zerologadapter provides a logger that writes to a github.com/rs/zerolog.
+package zerologadapter
+
+import (
+	"github.com/jackc/pgx"
+	"github.com/rs/zerolog"
+)
+
+type Logger struct {
+	logger zerolog.Logger
+}
+
+// NewLogger accepts a zerolog.Logger as input and returns a new custom pgx
+// logging fascade as output.
+func NewLogger(logger zerolog.Logger) *Logger {
+	return &Logger{
+		logger: logger.With().Str("module", "pgx").Logger(),
+	}
+}
+
+func (pl *Logger) Log(level pgx.LogLevel, msg string, data map[string]interface{}) {
+	var zlevel zerolog.Level
+	switch level {
+	case pgx.LogLevelNone:
+		zlevel = zerolog.NoLevel
+	case pgx.LogLevelError:
+		zlevel = zerolog.ErrorLevel
+	case pgx.LogLevelWarn:
+		zlevel = zerolog.WarnLevel
+	case pgx.LogLevelInfo:
+		zlevel = zerolog.InfoLevel
+	case pgx.LogLevelDebug:
+		zlevel = zerolog.DebugLevel
+	default:
+		zlevel = zerolog.DebugLevel
+	}
+
+	pgxlog := l.logger.With().Fields(data).Logger()
+	pgxlog.WithLevel(zlevel).Msg(msg)
+}