Update dependencies (#5518)

vendor/go.etcd.io/etcd/client/pkg/v3/fileutil/filereader.go

@@ -0,0 +1,60 @@
+// Copyright 2022 The etcd Authors
+//
+// 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
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package fileutil
+
+import (
+	"bufio"
+	"io"
+	"io/fs"
+	"os"
+)
+
+// FileReader is a wrapper of io.Reader. It also provides file info.
+type FileReader interface {
+	io.Reader
+	FileInfo() (fs.FileInfo, error)
+}
+
+type fileReader struct {
+	*os.File
+}
+
+func NewFileReader(f *os.File) FileReader {
+	return &fileReader{f}
+}
+
+func (fr *fileReader) FileInfo() (fs.FileInfo, error) {
+	return fr.Stat()
+}
+
+// FileBufReader is a wrapper of bufio.Reader. It also provides file info.
+type FileBufReader struct {
+	*bufio.Reader
+	fi fs.FileInfo
+}
+
+func NewFileBufReader(fr FileReader) *FileBufReader {
+	bufReader := bufio.NewReader(fr)
+	fi, err := fr.FileInfo()
+	if err != nil {
+		// This should never happen.
+		panic(err)
+	}
+	return &FileBufReader{bufReader, fi}
+}
+
+func (fbr *FileBufReader) FileInfo() fs.FileInfo {
+	return fbr.fi
+}