1 files changed, 8 insertions, 118 deletions

diff --git a/vendor/github.com/uptrace/bun/db.go b/vendor/github.com/uptrace/bun/db.go
index 067996d1c..9ac99a586 100644
--- a/vendor/github.com/uptrace/bun/db.go
+++ b/vendor/github.com/uptrace/bun/db.go
@@ -2,14 +2,13 @@ package bun
 
 import (
 	"context"
-	"crypto/rand"
+	cryptorand "crypto/rand"
 	"database/sql"
 	"encoding/hex"
 	"fmt"
 	"reflect"
 	"strings"
 	"sync/atomic"
-	"time"
 
 	"github.com/uptrace/bun/dialect/feature"
 	"github.com/uptrace/bun/internal"
@@ -41,6 +40,12 @@ func WithDiscardUnknownColumns() DBOption {
 	}
 }
 
+// ConnResolver enables routing queries to multiple databases.
+type ConnResolver interface {
+	ResolveConn(query Query) IConn
+	Close() error
+}
+
 func WithConnResolver(resolver ConnResolver) DBOption {
 	return func(db *DB) {
 		db.resolver = resolver
@@ -633,7 +638,7 @@ func (tx Tx) Begin() (Tx, error) {
 func (tx Tx) BeginTx(ctx context.Context, _ *sql.TxOptions) (Tx, error) {
 	// mssql savepoint names are limited to 32 characters
 	sp := make([]byte, 14)
-	_, err := rand.Read(sp)
+	_, err := cryptorand.Read(sp)
 	if err != nil {
 		return Tx{}, err
 	}
@@ -739,121 +744,6 @@ func (tx Tx) NewDropColumn() *DropColumnQuery {
 	return NewDropColumnQuery(tx.db).Conn(tx)
 }
 
-//------------------------------------------------------------------------------
-
 func (db *DB) makeQueryBytes() []byte {
 	return internal.MakeQueryBytes()
 }
-
-//------------------------------------------------------------------------------
-
-// ConnResolver enables routing queries to multiple databases.
-type ConnResolver interface {
-	ResolveConn(query Query) IConn
-	Close() error
-}
-
-// TODO:
-//   - make monitoring interval configurable
-//   - make ping timeout configutable
-//   - allow adding read/write replicas for multi-master replication
-type ReadWriteConnResolver struct {
-	replicas        []*sql.DB // read-only replicas
-	healthyReplicas atomic.Pointer[[]*sql.DB]
-	nextReplica     atomic.Int64
-	closed          atomic.Bool
-}
-
-func NewReadWriteConnResolver(opts ...ReadWriteConnResolverOption) *ReadWriteConnResolver {
-	r := new(ReadWriteConnResolver)
-
-	for _, opt := range opts {
-		opt(r)
-	}
-
-	if len(r.replicas) > 0 {
-		r.healthyReplicas.Store(&r.replicas)
-		go r.monitor()
-	}
-
-	return r
-}
-
-type ReadWriteConnResolverOption func(r *ReadWriteConnResolver)
-
-func WithReadOnlyReplica(dbs ...*sql.DB) ReadWriteConnResolverOption {
-	return func(r *ReadWriteConnResolver) {
-		r.replicas = append(r.replicas, dbs...)
-	}
-}
-
-func (r *ReadWriteConnResolver) Close() error {
-	if r.closed.Swap(true) {
-		return nil
-	}
-
-	var firstErr error
-	for _, db := range r.replicas {
-		if err := db.Close(); err != nil && firstErr == nil {
-			firstErr = err
-		}
-	}
-	return firstErr
-}
-
-// healthyReplica returns a random healthy replica.
-func (r *ReadWriteConnResolver) ResolveConn(query Query) IConn {
-	if len(r.replicas) == 0 || !isReadOnlyQuery(query) {
-		return nil
-	}
-
-	replicas := r.loadHealthyReplicas()
-	if len(replicas) == 0 {
-		return nil
-	}
-	if len(replicas) == 1 {
-		return replicas[0]
-	}
-	i := r.nextReplica.Add(1)
-	return replicas[int(i)%len(replicas)]
-}
-
-func isReadOnlyQuery(query Query) bool {
-	sel, ok := query.(*SelectQuery)
-	if !ok {
-		return false
-	}
-	for _, el := range sel.with {
-		if !isReadOnlyQuery(el.query) {
-			return false
-		}
-	}
-	return true
-}
-
-func (r *ReadWriteConnResolver) loadHealthyReplicas() []*sql.DB {
-	if ptr := r.healthyReplicas.Load(); ptr != nil {
-		return *ptr
-	}
-	return nil
-}
-
-func (r *ReadWriteConnResolver) monitor() {
-	const interval = 5 * time.Second
-	for !r.closed.Load() {
-		healthy := make([]*sql.DB, 0, len(r.replicas))
-
-		for _, replica := range r.replicas {
-			ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
-			err := replica.PingContext(ctx)
-			cancel()
-
-			if err == nil {
-				healthy = append(healthy, replica)
-			}
-		}
-
-		r.healthyReplicas.Store(&healthy)
-		time.Sleep(interval)
-	}
-}