youtubebeat/vendor/github.com/elastic/beats/libbeat/common/file/fileinfo.go

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2018-11-18 11:08:38 +01:00
// Licensed to Elasticsearch B.V. under one or more contributor
// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. Elasticsearch B.V. licenses this file to you 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 file
import (
"errors"
"os"
)
// A FileInfo describes a file and is returned by Stat and Lstat.
type FileInfo interface {
os.FileInfo
UID() (int, error) // UID of the file owner. Returns an error on non-POSIX file systems.
GID() (int, error) // GID of the file owner. Returns an error on non-POSIX file systems.
}
// Stat returns a FileInfo describing the named file.
// If there is an error, it will be of type *PathError.
func Stat(name string) (FileInfo, error) {
return stat(name, os.Stat)
}
// Lstat returns a FileInfo describing the named file.
// If the file is a symbolic link, the returned FileInfo
// describes the symbolic link. Lstat makes no attempt to follow the link.
// If there is an error, it will be of type *PathError.
func Lstat(name string) (FileInfo, error) {
return stat(name, os.Lstat)
}
type fileInfo struct {
os.FileInfo
uid *int
gid *int
}
func (f fileInfo) UID() (int, error) {
if f.uid == nil {
return -1, errors.New("uid not implemented")
}
return *f.uid, nil
}
func (f fileInfo) GID() (int, error) {
if f.gid == nil {
return -1, errors.New("gid not implemented")
}
return *f.gid, nil
}