/
FilesUtils.go
259 lines (212 loc) · 5.08 KB
/
FilesUtils.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
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
package fsutils
import (
"archive/tar"
"bytes"
"compress/gzip"
"fmt"
"io"
"io/ioutil"
"log"
"os"
"os/exec"
"path"
"path/filepath"
"strings"
)
func ExtractTarGz(tarpath string) (string, error) {
gzipStream, err := os.Open(tarpath)
if err != nil {
fmt.Println("error")
return "", err
}
uncompressedStream, err := gzip.NewReader(gzipStream)
if err != nil {
fmt.Println(err)
log.Fatal("ExtractTarGz: NewReader failed")
}
tarReader := tar.NewReader(uncompressedStream)
tmpdir := "tmp"
//os.RemoveAll(tmpdir)
err = os.Mkdir(tmpdir, 0755)
if err != nil {
return "", err
}
for true {
header, err := tarReader.Next()
if err == io.EOF {
break
}
if err != nil {
log.Fatalf("ExtractTarGz: Next() failed: %s", err.Error())
}
switch header.Typeflag {
case tar.TypeDir:
if err := os.MkdirAll(path.Join(tmpdir, header.Name), 0755); err != nil {
log.Fatalf("ExtractTarGz: Mkdir() failed: %s", err.Error())
}
case tar.TypeReg:
outFile, err := os.Create(path.Join(tmpdir, header.Name))
if err != nil {
log.Fatalf("ExtractTarGz: Create() failed: %s", err.Error())
}
if _, err := io.Copy(outFile, tarReader); err != nil {
log.Fatalf("ExtractTarGz: Copy() failed: %s", err.Error())
}
outFile.Close()
default:
log.Fatalf(
"ExtractTarGz: uknown type: %s in %s",
header.Typeflag,
header.Name)
}
}
return tmpdir, nil
}
func ExtractTarGz2(tarpath string) (string, error) {
tmpDir := "./tmp"
os.RemoveAll(tmpDir)
err := os.Mkdir(tmpDir, 0755)
if err != nil {
log.Fatal(err)
}
commandArgs := []string{tarpath, tmpDir}
extractionCmd := exec.Command("./extract.sh", commandArgs...)
fmt.Println("\t" + extractionCmd.String())
var cmdStderr bytes.Buffer
extractionCmd.Stderr = &cmdStderr
if err = extractionCmd.Run(); err != nil {
fmt.Println(err)
log.Fatal("Call to external command failed, with the following error stream:\n" + cmdStderr.String())
return tmpDir, err
}
return tmpDir, err
}
func CompressTarGz(src string, outArchivePath string) error {
// ensure the src actually exists before trying to tar it
if _, err := os.Stat(src); err != nil {
return fmt.Errorf("Unable to tar files - %v", err.Error())
}
//mw := io.MultiWriter(writers...)
outF, err := os.Create(outArchivePath)
defer outF.Close()
if err != nil {
return err
}
gzw := gzip.NewWriter(outF)
defer gzw.Close()
tw := tar.NewWriter(gzw)
defer tw.Close()
// walk path
return filepath.Walk(src, func(file string, fi os.FileInfo, err error) error {
// return on any error
if err != nil {
return err
}
if !fi.Mode().IsRegular() {
return nil
}
// create a new dir/file header
header, err := tar.FileInfoHeader(fi, fi.Name())
if err != nil {
return err
}
// update the name to correctly reflect the desired destination when untaring
header.Name = strings.TrimPrefix(strings.Replace(file, src, "", -1), string(filepath.Separator))
// write the header
if err := tw.WriteHeader(header); err != nil {
return err
}
// open files for taring
f, err := os.Open(file)
if err != nil {
return err
}
// copy file dictionary_data into tar writer
if _, err := io.Copy(tw, f); err != nil {
return err
}
// manually close here after each file operation; defering would cause each file close
// to wait until all operations have completed.
f.Close()
return nil
})
}
func CompressTarGz2(archiveFileName string, dirToCompress string) error {
commandArgs := []string{archiveFileName, dirToCompress}
extractionCmd := exec.Command("./compress.sh", commandArgs...)
fmt.Println("\t" + extractionCmd.String())
var cmdStderr bytes.Buffer
extractionCmd.Stderr = &cmdStderr
if err := extractionCmd.Run(); err != nil {
fmt.Println(err)
log.Fatal("Call to external command failed, with the following error stream:\n" + cmdStderr.String())
return err
}
return nil
}
func GetFilesList(path string, includeDir bool) []string {
var files []string
err := filepath.Walk(path, func(path string, info os.FileInfo, err error) error {
if !includeDir {
if info.IsDir() {
return nil
}
}
files = append(files, path)
return nil
})
if err != nil {
panic(err)
}
return files
}
func ReadGzPage(gzPagePath string) (string, error) {
f, err := os.Open(gzPagePath)
if err != nil {
return "", err
}
gz, err := gzip.NewReader(f)
if err != nil {
log.Fatal(err)
return "", err
}
s, err := ioutil.ReadAll(gz)
if err != nil {
log.Fatal(err)
return "nil", err
}
err = gz.Close()
if err != nil {
return "", err
}
err = f.Close()
if err != nil {
return "", err
}
return string(s), nil
}
func WriteGzPage(tarPath string, data string) error {
//fmt.Println("gzing: ", tarPath)
//_ = os.Remove(tarPath)
newGz, err := os.Create(tarPath)
//defer newGz.Close()
if err != nil {
fmt.Println("Error writing page ", tarPath)
return err
}
writer := gzip.NewWriter(newGz)
//defer writer.Close()
_, err = writer.Write([]byte(data))
if err != nil {
return err
}
err = writer.Close()
if err != nil {
return err
}
err = newGz.Close()
if err != nil {
return err
}
return err
}