func (tx *Transaction) exec(cmd string, args ...string) (string, error) {
if tx.err != nil {
return "", tx.err
}
cmdpath, err := exec.LookPath(cmd)
if err != nil {
tx.err = fmt.Errorf("OVS is not installed")
return "", tx.err
}
var output string
output, tx.err = exec.Exec(cmdpath, args...)
return output, tx.err
}
func (tx *Transaction) exec(args []string) (string, error) {
if tx.err != nil {
return "", tx.err
}
ipcmdPath, err := exec.LookPath("ip")
if err != nil {
tx.err = fmt.Errorf("ip is not installed")
return "", tx.err
}
var output string
output, tx.err = exec.Exec(ipcmdPath, args...)
return output, tx.err
}