-
Notifications
You must be signed in to change notification settings - Fork 0
/
utils.go
55 lines (44 loc) · 857 Bytes
/
utils.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
package cli
import (
"fmt"
"io"
"os"
"github.com/prskr/git-age/core/ports"
)
func requireStdin(in ports.STDIN) error {
type stater interface {
Stat() (os.FileInfo, error)
}
s, ok := in.(stater)
if !ok {
return nil
}
stat, err := s.Stat()
if err != nil {
return fmt.Errorf("cannot read from STDIN: %w", err)
} else if (stat.Mode() & os.ModeCharDevice) != 0 {
return fmt.Errorf("cannot read from STDIN: %w", err)
}
return nil
}
func copyToTemp(reader io.Reader) (f *os.File, err error) {
f, err = os.CreateTemp(os.TempDir(), "git-age")
if err != nil {
return nil, err
}
defer func() {
if err == nil {
_, err = f.Seek(0, io.SeekStart)
}
}()
defer func() {
if err != nil {
_ = f.Close()
_ = os.Remove(f.Name())
}
}()
if _, err := io.Copy(f, reader); err != nil {
return nil, err
}
return f, nil
}