forked from cihub/seelog
-
Notifications
You must be signed in to change notification settings - Fork 0
/
internals_osfswrapper.go
104 lines (89 loc) · 2.99 KB
/
internals_osfswrapper.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
// Copyright (c) 2012 - Cloud Instruments Co., Ltd.
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
// ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package seelog
// Real fileSystemWrapperInterface implementation that uses os package.
import (
"io"
"os"
)
const (
defaultFilePermissions = 0666
defaultDirectoryPermissions = 0767
)
var isFakeFS = false
var realFSWrapper = new(osWrapper)
var fileSystemWrapper fileSystemWrapperInterface = realFSWrapper
func switchToRealFSWrapper() {
if !isFakeFS {
return
}
fileSystemWrapper = realFSWrapper
isFakeFS = false
}
type osWrapper struct {
}
func (_ *osWrapper) MkdirAll(folderPath string) error {
if folderPath == "" {
return nil
}
return os.MkdirAll(folderPath, defaultDirectoryPermissions)
}
func (_ *osWrapper) Open(fileName string) (io.WriteCloser, error) {
return os.OpenFile(fileName, os.O_WRONLY|os.O_APPEND, defaultFilePermissions)
}
func (_ *osWrapper) Create(fileName string) (io.WriteCloser, error) {
return os.Create(fileName)
}
func (_ *osWrapper) GetFileSize(fileName string) (int64, error) {
stat, err := os.Lstat(fileName)
if err != nil {
return 0, err
}
return stat.Size(), nil
}
func (_ *osWrapper) GetFileNames(folderPath string) ([]string, error) {
if folderPath == "" {
folderPath = "."
}
folder, err := os.Open(folderPath)
if err != nil {
return make([]string, 0), err
}
defer folder.Close()
files, err := folder.Readdirnames(-1)
if err != nil {
return make([]string, 0), err
}
return files, nil
}
func (_ *osWrapper) Rename(fileNameFrom string, fileNameTo string) error {
return os.Rename(fileNameFrom, fileNameTo)
}
func (_ *osWrapper) Remove(fileName string) error {
return os.Remove(fileName)
}
func (_ *osWrapper) Exists(path string) bool {
_, err := os.Lstat(path)
return err == nil
}