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
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
|
package fs
import (
"io/ioutil"
"os"
"path"
"path/filepath"
)
// OSClient a filesystem based on OSClient
type OS struct {
RootDir string
}
// NewOSClient returns a new OSClient
func NewOS(rootDir string) *OS {
return &OS{
RootDir: rootDir,
}
}
// Create creates a new GlusterFSFile
func (fs *OS) Create(filename string) (File, error) {
fullpath := path.Join(fs.RootDir, filename)
dir := filepath.Dir(fullpath)
if dir != "." {
if err := os.MkdirAll(dir, 0755); err != nil {
return nil, err
}
}
f, err := os.Create(fullpath)
if err != nil {
return nil, err
}
return &OSFile{
BaseFile: BaseFile{filename: fullpath},
file: f,
}, nil
}
// ReadDir returns the filesystem info for all the archives under the specified
// path.
func (fs *OS) ReadDir(path string) ([]FileInfo, error) {
fullpath := fs.Join(fs.RootDir, path)
l, err := ioutil.ReadDir(fullpath)
if err != nil {
return nil, err
}
var s = make([]FileInfo, len(l))
for i, f := range l {
s[i] = f
}
return s, nil
}
func (fs *OS) Rename(from, to string) error {
if !filepath.IsAbs(from) {
from = fs.Join(fs.RootDir, from)
}
if !filepath.IsAbs(to) {
to = fs.Join(fs.RootDir, to)
}
return os.Rename(from, to)
}
func (fs *OS) Open(filename string) (File, error) {
fullpath := fs.Join(fs.RootDir, filename)
f, err := os.Open(fullpath)
if err != nil {
return nil, err
}
return &OSFile{
BaseFile: BaseFile{filename: fullpath},
file: f,
}, nil
}
func (fs *OS) Stat(filename string) (FileInfo, error) {
fullpath := fs.Join(fs.RootDir, filename)
return os.Stat(fullpath)
}
// Join joins the specified elements using the filesystem separator.
func (fs *OS) Join(elem ...string) string {
return filepath.Join(elem...)
}
func (fs *OS) Dir(path string) Filesystem {
return NewOS(fs.Join(fs.RootDir, path))
}
func (fs *OS) Base() string {
return fs.RootDir
}
type OSFile struct {
file *os.File
BaseFile
}
func (f *OSFile) Read(p []byte) (int, error) {
return f.file.Read(p)
}
func (f *OSFile) Seek(offset int64, whence int) (int64, error) {
return f.file.Seek(offset, whence)
}
func (f *OSFile) Write(p []byte) (int, error) {
return f.file.Write(p)
}
func (f *OSFile) Close() error {
f.closed = true
return f.file.Close()
}
|
