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package machine
import (
"io"
"os"
"os/exec"
"github.com/sirupsen/logrus"
)
func setupIOPassthrough(cmd *exec.Cmd, interactive bool, stdin io.Reader) error {
cmd.Stdin = stdin
if interactive {
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
return nil
}
// OpenSSh mucks with the associated virtual console when there is no pty,
// leaving it in a broken state. Pipe the output to isolate stdout/stderr
stdout, err := cmd.StdoutPipe()
if err != nil {
return err
}
stderr, err := cmd.StderrPipe()
if err != nil {
return err
}
copier := func(name string, dest string, from io.Reader, to io.Writer) {
if _, err := io.Copy(to, from); err != nil {
logrus.Warnf("could not copy output from command %s to %s", name, dest)
}
}
go copier(cmd.Path, "stdout", stdout, os.Stdout)
go copier(cmd.Path, "stderr", stderr, os.Stderr)
return nil
}
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