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append-file_nix.go
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append-file_nix.go
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//go:build !windows
// +build !windows
// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package ioutil
import (
"io"
"os"
)
// AppendFile - appends the file "src" to the file "dst"
func AppendFile(dst string, src string, osync bool) error {
flags := os.O_WRONLY | os.O_APPEND | os.O_CREATE
if osync {
flags |= os.O_SYNC
}
appendFile, err := os.OpenFile(dst, flags, 0o666)
if err != nil {
return err
}
defer appendFile.Close()
srcFile, err := os.Open(src)
if err != nil {
return err
}
defer srcFile.Close()
_, err = io.Copy(appendFile, srcFile)
return err
}