go mod vendor

+ move k8s.io/apimachinery fork from go.work to go.mod
(and include it in vendor)

vendor/go.mongodb.org/mongo-driver/mongo/readconcern/readconcern.go

@@ -0,0 +1,83 @@
+// Copyright (C) MongoDB, Inc. 2017-present.
+//
+// Licensed under the Apache License, Version 2.0 (the "License"); you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
+
+// Package readconcern defines read concerns for MongoDB operations.
+package readconcern // import "go.mongodb.org/mongo-driver/mongo/readconcern"
+
+import (
+	"go.mongodb.org/mongo-driver/bson/bsontype"
+	"go.mongodb.org/mongo-driver/x/bsonx/bsoncore"
+)
+
+// ReadConcern for replica sets and replica set shards determines which data to return from a query.
+type ReadConcern struct {
+	level string
+}
+
+// Option is an option to provide when creating a ReadConcern.
+type Option func(concern *ReadConcern)
+
+// Level creates an option that sets the level of a ReadConcern.
+func Level(level string) Option {
+	return func(concern *ReadConcern) {
+		concern.level = level
+	}
+}
+
+// Local specifies that the query should return the instance’s most recent data.
+func Local() *ReadConcern {
+	return New(Level("local"))
+}
+
+// Majority specifies that the query should return the instance’s most recent data acknowledged as
+// having been written to a majority of members in the replica set.
+func Majority() *ReadConcern {
+	return New(Level("majority"))
+}
+
+// Linearizable specifies that the query should return data that reflects all successful writes
+// issued with a write concern of "majority" and acknowledged prior to the start of the read operation.
+func Linearizable() *ReadConcern {
+	return New(Level("linearizable"))
+}
+
+// Available specifies that the query should return data from the instance with no guarantee
+// that the data has been written to a majority of the replica set members (i.e. may be rolled back).
+func Available() *ReadConcern {
+	return New(Level("available"))
+}
+
+// Snapshot is only available for operations within multi-document transactions.
+func Snapshot() *ReadConcern {
+	return New(Level("snapshot"))
+}
+
+// New constructs a new read concern from the given string.
+func New(options ...Option) *ReadConcern {
+	concern := &ReadConcern{}
+
+	for _, option := range options {
+		option(concern)
+	}
+
+	return concern
+}
+
+// MarshalBSONValue implements the bson.ValueMarshaler interface.
+func (rc *ReadConcern) MarshalBSONValue() (bsontype.Type, []byte, error) {
+	var elems []byte
+
+	if len(rc.level) > 0 {
+		elems = bsoncore.AppendStringElement(elems, "level", rc.level)
+	}
+
+	return bsontype.EmbeddedDocument, bsoncore.BuildDocument(nil, elems), nil
+}
+
+// GetLevel returns the read concern level.
+func (rc *ReadConcern) GetLevel() string {
+	return rc.level
+}