forked from PagerDuty/go-pagerduty
/
util.go
41 lines (39 loc) · 824 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
package main
import (
"fmt"
"io/ioutil"
"os"
"os/exec"
"strings"
)
func TextEditor(content []byte) ([]byte, error) {
editor := os.Getenv("EDITOR")
if editor == "" {
return []byte{}, fmt.Errorf("Please set the EDITOR environment variable")
}
f, err := ioutil.TempFile("", "pd_")
if err != nil {
return []byte{}, err
}
if err := f.Chmod(0600); err != nil {
f.Close()
os.Remove(f.Name())
return []byte{}, err
}
f.Write(content)
f.Close()
defer os.Remove(f.Name())
cmdParts := strings.Fields(editor)
cmd := exec.Command(cmdParts[0], append(cmdParts[1:], f.Name())...)
cmd.Stdin = os.Stdin
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
if err := cmd.Run(); err != nil {
return []byte{}, err
}
ct, err := ioutil.ReadFile(f.Name())
if err != nil {
return []byte{}, err
}
return ct, nil
}