67 lines
1.9 KiB
Go
67 lines
1.9 KiB
Go
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// Licensed to Elasticsearch B.V. under one or more contributor
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// license agreements. See the NOTICE file distributed with
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// this work for additional information regarding copyright
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// ownership. Elasticsearch B.V. licenses this file to you under
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// the Apache License, Version 2.0 (the "License"); you may
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// not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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package file
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import (
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"errors"
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"os"
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)
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// A FileInfo describes a file and is returned by Stat and Lstat.
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type FileInfo interface {
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os.FileInfo
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UID() (int, error) // UID of the file owner. Returns an error on non-POSIX file systems.
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GID() (int, error) // GID of the file owner. Returns an error on non-POSIX file systems.
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}
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// Stat returns a FileInfo describing the named file.
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// If there is an error, it will be of type *PathError.
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func Stat(name string) (FileInfo, error) {
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return stat(name, os.Stat)
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}
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// Lstat returns a FileInfo describing the named file.
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// If the file is a symbolic link, the returned FileInfo
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// describes the symbolic link. Lstat makes no attempt to follow the link.
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// If there is an error, it will be of type *PathError.
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func Lstat(name string) (FileInfo, error) {
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return stat(name, os.Lstat)
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}
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type fileInfo struct {
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os.FileInfo
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uid *int
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gid *int
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}
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func (f fileInfo) UID() (int, error) {
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if f.uid == nil {
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return -1, errors.New("uid not implemented")
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}
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return *f.uid, nil
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}
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func (f fileInfo) GID() (int, error) {
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if f.gid == nil {
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return -1, errors.New("gid not implemented")
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}
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return *f.gid, nil
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}
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