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f7ee69f312
If we're passed an exec.Cmd that already has a configured SysProcAttr, Start was obliterating it by overwriting it with a new struct in order to set `Setctty` and `Setsid`. Instead, just adjust the parameters that we need.
pty
Pty is a Go package for using unix pseudo-terminals.
Install
go get github.com/kr/pty
Example
package main
import (
"github.com/kr/pty"
"io"
"os"
"os/exec"
)
func main() {
c := exec.Command("grep", "--color=auto", "bar")
f, err := pty.Start(c)
if err != nil {
panic(err)
}
go func() {
f.Write([]byte("foo\n"))
f.Write([]byte("bar\n"))
f.Write([]byte("baz\n"))
f.Write([]byte{4}) // EOT
}()
io.Copy(os.Stdout, f)
}