package icmd import ( "os/exec" "syscall" "github.com/pkg/errors" ) // getExitCode returns the ExitStatus of a process from the error returned by // exec.Run(). If the exit status could not be parsed an error is returned. func getExitCode(err error) (int, error) { if exiterr, ok := err.(*exec.ExitError); ok { if procExit, ok := exiterr.Sys().(syscall.WaitStatus); ok { return procExit.ExitStatus(), nil } } return 0, errors.Wrap(err, "failed to get exit code") } func processExitCode(err error) (exitCode int) { if err == nil { return 0 } exitCode, exiterr := getExitCode(err) if exiterr != nil { // TODO: Fix this so we check the error's text. // we've failed to retrieve exit code, so we set it to 127 return 127 } return exitCode }