yaxc/internal/common/pipe.go
2021-05-16 23:22:36 +02:00

33 lines
563 B
Go

package common
import (
"bufio"
"errors"
"io"
"os"
"strings"
)
var ErrNotPiped = errors.New("not piped")
func ReadPipe() (res string, err error) {
var info os.FileInfo
if info, err = os.Stdin.Stat(); err != nil {
return
}
if info.Mode()&os.ModeCharDevice != 0 || info.Size() <= 0 {
err = ErrNotPiped
return
}
reader := bufio.NewReader(os.Stdin)
var output []rune
for {
input, _, err := reader.ReadRune()
if err != nil && err == io.EOF {
break
}
output = append(output, input)
}
res = strings.TrimSpace(string(output))
return
}