initial commit

pkg/core/timeout.go

@@ -0,0 +1,31 @@
+package core
+
+import (
+	"os/exec"
+	"time"
+)
+
+func Timeout(cmd *exec.Cmd, t time.Duration) (output []byte, err error) {
+	done := make(chan error)
+	out := make(chan []byte)
+	go func() {
+		o, e := cmd.Output()
+		done <- e
+		out <- o
+	}()
+	select {
+	case <-time.After(t):
+		e := cmd.Process.Kill()
+		<-out
+		if e != nil {
+			<-done
+			err = e
+			return
+		}
+		err = <-done
+	case e := <-done:
+		err = e
+		output = <-out
+	}
+	return
+}