return kubeconfig{}, err
	}

	return kubeconfig{
		Full:     string(fullYaml),
		Redacted: string(redacted),
	}, nil
}

// maybeWriteKubeConfigFile will validate the existing kubeConfig file, and rewrite/replace it if required.
func maybeWriteKubeConfigFile(cfg *config.InstallConfig) error {
	kc, err := createKubeConfig(cfg)
	if err != nil {
		return err
	}

	"istio.io/istio/pkg/kube"
	"istio.io/istio/pkg/test/env"
	"istio.io/istio/pkg/test/util/assert"
)

var (
	extendedClient kube.CLIClient
	kubeClient     client.Client
)

// TODO: rewrite this with running the actual top level command.
func TestOperatorDump(t *testing.T) {
	goldenFilepath := filepath.Join(env.IstioSrc, "operator/cmd/mesh/testdata/operator/output/operator-dump.yaml")

	odArgs := &operatorDumpArgs{

	if !f.PassHost {
		outReq.Host = target.Host
	}

	// TODO: only supports HTTP 1.1 for now.
	outReq.Proto = "HTTP/1.1"
	outReq.ProtoMajor = 1
	outReq.ProtoMinor = 1

	f.rewriter.Rewrite(outReq)

	// Disable closeNotify when method GET for http pipelining
	if outReq.Method == http.MethodGet {
		quietReq := outReq.WithContext(context.Background())
		*outReq = *quietReq
	}
}

	}

	if len(matches) == 0 {
		return
	}

	f, err = os.OpenFile(file, os.O_RDWR, 0)
	if err != nil {
		log.Fatal(err)
	}
	if err := buildid.Rewrite(f, matches, newID); err != nil {
		log.Fatal(err)
	}
	if err := f.Close(); err != nil {
		log.Fatal(err)
	}

}

// RenameDataResp - RenameData()'s response.
// Provides information about the final state of Rename()
//   - on xl.meta (array of versions) on disk to check for version disparity
//   - on rewrite dataDir on disk that must be additionally purged
//     only after as a 2-phase call, allowing the older dataDir to
//     hang-around in-case we need some form of recovery.
type RenameDataResp struct {
	Sign       []byte

	start, _, err := madmClnt.Heal(context.Background(), "healing-rewrite-bucket", "", opts, "", false, false)
	if err != nil {
		log.Fatalln(err)
	}
	fmt.Println("Healstart sequence ===")
	enc := json.NewEncoder(os.Stdout)
	if err = enc.Encode(&start); err != nil {
		log.Fatalln(err)
	}

	fmt.Println()
	for {
		_, status, err := madmClnt.Heal(context.Background(), "healing-rewrite-bucket", "", opts, start.ClientToken, false, false)

	}

	// TODO: It seems like we may have to be prepared to rewrite and sort trailing headers:
	// https://docs.aws.amazon.com/IAM/latest/UserGuide/create-signed-request.html

	// Any value must end with a newline.
	// Not all clients send that.
	trailerRaw := valueBuffer.Bytes()
	if len(trailerRaw) > 0 && trailerRaw[len(trailerRaw)-1] != '\n' {
		valueBuffer.Write([]byte{'\n'})
	}
	sig = sig[len("x-amz-trailer-signature:"):]

	)

	// TODO BML I don't think we need UDP? TCP healthcheck redir should catch everything.

	// This is effectively an analog for Istio's old-style podSpec-based health check rewrites.
	// Before Istio would update the pod manifest to rewrite healthchecks to go to sidecar Envoy port 15021,
	// so that it could distinguish things that can be unauthenticated (healthchecks) from other kinds of node traffic

	}
	if len(internalIP) > 0 {
		overrides["ISTIO_SVC_IP"] = internalIP
	} else if len(externalIP) > 0 {
		overrides["ISTIO_SVC_IP"] = externalIP
		overrides["REWRITE_PROBE_LEGACY_LOCALHOST_DESTINATION"] = "true"
	}

	// clusterEnv will use proxyMetadata from the proxyConfig + overrides specific to the WorkloadGroup and cmd args

provided

	mpz_t zero;

then cgo would rewrite a reference to C.zero by introducing

	var _C_zero *C.mpz_t

and then replacing all instances of C.zero with (*_C_zero).

Cgo's most interesting translation is for functions.  If xxx is a C
function, then cgo rewrites C.xxx into a new function _C_xxx that
calls the C xxx in a standard pthread.  The new function translates