forked from pingcap/tidb-dashboard
/
util.go
94 lines (89 loc) · 1.9 KB
/
util.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
// Copyright 2020 PingCAP, Inc.
//
// Licensed 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,
// See the License for the specific language governing permissions and
// limitations under the License.
package profiling
import (
"archive/tar"
"compress/gzip"
"io"
"os"
"path/filepath"
"runtime"
)
func goCmd() string {
var exeSuffix string
if runtime.GOOS == "windows" {
exeSuffix = ".exe"
}
path := filepath.Join(runtime.GOROOT(), "bin", "go"+exeSuffix)
if _, err := os.Stat(path); err == nil {
return path
}
return "go"
}
func createTarball(d *os.File, files []string) error {
gw := gzip.NewWriter(d)
defer gw.Close()
tw := tar.NewWriter(gw)
defer tw.Close()
for _, file := range files {
f, err := os.Open(file)
if err != nil {
return err
}
defer f.Close()
err = compress(f, "", tw)
if err != nil {
return err
}
}
return nil
}
func compress(file *os.File, prefix string, tw *tar.Writer) error {
info, err := file.Stat()
if err != nil {
return err
}
if info.IsDir() {
prefix = prefix + "/" + info.Name()
fileInfos, err := file.Readdir(-1)
if err != nil {
return err
}
for _, fi := range fileInfos {
f, err := os.Open(file.Name() + "/" + fi.Name())
if err != nil {
return err
}
err = compress(f, prefix, tw)
if err != nil {
return err
}
}
} else {
header, err := tar.FileInfoHeader(info, "")
header.Name = prefix + "/" + header.Name
if err != nil {
return err
}
err = tw.WriteHeader(header)
if err != nil {
return err
}
_, err = io.Copy(tw, file)
file.Close()
if err != nil {
return err
}
}
return nil
}