forked from zcalusic/sysinfo
/
util.go
46 lines (39 loc) · 963 Bytes
/
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
// Copyright © 2016 Zlatko Čalušić
//
// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file.
package sysinfo
import (
"io/ioutil"
"os"
"strconv"
"strings"
)
// Read one-liner text files, strip newline.
func slurpFile(path string) string {
data, err := ioutil.ReadFile(path)
if err != nil {
return ""
}
return strings.TrimSpace(string(data))
}
// Write one-liner text files, add newline, ignore errors (best effort).
func spewFile(path string, data string, perm os.FileMode) {
_ = ioutil.WriteFile(path, []byte(data+"\n"), perm)
}
func SlurpFile(path string) string {
return slurpFile(path)
}
func parseMemSize(key, memInfo string) uint64 {
for _, line := range strings.Split(memInfo, "\n") {
if !strings.Contains(line, key) {
continue
}
fields := strings.Fields(line)
size, err := strconv.ParseUint(fields[1], 10, 64)
if err != nil {
return 0
}
return size
}
return 0
}