feat: initial tracing support (#1623)

vendor/github.com/uptrace/opentelemetry-go-extra/otelsql/tx.go

@@ -0,0 +1,38 @@
+package otelsql
+
+import (
+	"context"
+	"database/sql/driver"
+
+	"go.opentelemetry.io/otel/trace"
+)
+
+type otelTx struct {
+	ctx     context.Context
+	tx      driver.Tx
+	instrum *dbInstrum
+}
+
+var _ driver.Tx = (*otelTx)(nil)
+
+func newTx(ctx context.Context, tx driver.Tx, instrum *dbInstrum) *otelTx {
+	return &otelTx{
+		ctx:     ctx,
+		tx:      tx,
+		instrum: instrum,
+	}
+}
+
+func (tx *otelTx) Commit() error {
+	return tx.instrum.withSpan(tx.ctx, "tx.Commit", "",
+		func(ctx context.Context, span trace.Span) error {
+			return tx.tx.Commit()
+		})
+}
+
+func (tx *otelTx) Rollback() error {
+	return tx.instrum.withSpan(tx.ctx, "tx.Rollback", "",
+		func(ctx context.Context, span trace.Span) error {
+			return tx.tx.Rollback()
+		})
+}