// later arguments, and other modules would. Let's not try to be too
	// magical though.
	allowed := modload.CheckAllowed
	if modload.IsRevisionQuery(firstPath, version) {
		// Don't check for retractions if a specific revision is requested.
		allowed = nil
	}
	noneSelected := func(path string) (version string) { return "none" }
	qrs, err := modload.QueryPackages(ctx, patterns[0], version, noneSelected, allowed)

var rootPackage string

func main() {
	if len(os.Args) != 3 {
		log.Fatalf("Usage: %s <root> <restrictions.yaml>", os.Args[0])
	}

	rootPackage = os.Args[1]
	configFile := os.Args[2]
	importRestrictions, err := loadImportRestrictions(configFile)
	if err != nil {
		log.Fatalf("Failed to load import restrictions: %v", err)
	}

	foundForbiddenImports := false
	for _, restriction := range importRestrictions {

This version should be retracted, but the go.mod file for the version that would
contain the retraction is not available.
-- .mod --
module example.com/retract/missingmod

go 1.14
-- .info --
{"Version":"v1.0.0"}
-- missingmod.go --

const debug = false

var ErrEmptyTypeSet = errors.New("empty type set")

// StructuralTerms returns a slice of terms representing the normalized
// structural type restrictions of a type parameter, if any.
//
// Structural type restrictions of a type parameter are created via
// non-interface types embedded in its constraint interface (directly, or via a
// chain of interface embeddings). For example, in the declaration
//

# listed in `staging/publishing/import-restrictions.yaml`.
# Usage: `hack/verify-imports.sh`.

set -o errexit
set -o nounset
set -o pipefail

KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
source "${KUBE_ROOT}/hack/lib/init.sh"

kube::golang::setup_env

GOPROXY=off go install ./cmd/importverifier

## Purpose

`import-boss` enforces optional import restrictions between packages.  This is
useful to manage the dependency graph within a large repository, such as
[kubernetes](https://github.com/kubernetes/kubernetes).

## How does it work?

When a package is verified, `import-boss` looks for a file called
`.import-restrictions` in the same directory and all parent directories, up to
the module root (defined by the presence of a go.mod file).  These files

        this.schema = schema;
    }

    @Override
    public Multimap<ModelActionRole, ModelAction> getActions(ModelReference<?> subject, ModelRuleDescriptor descriptor) {
        return getActions(subject, descriptor, schema);
    }

    public static <T, E> Multimap<ModelActionRole, ModelAction> getActions(ModelReference<?> subject, ModelRuleDescriptor descriptor, final SpecializedMapSchema<T, E> schema) {

    }

    @Override
    public boolean hasTaskActions() {
        return actions != null && !actions.isEmpty();
    }

    @Override
    public void setActions(final List<Action<? super Task>> replacements) {
        taskMutator.mutate("Task.setActions(List<Action>)", new Runnable() {
            @Override
            public void run() {
                getTaskActions().clear();

namespace mlir {
namespace TFL {
namespace tac {
// An OperationPass<> with access to the TAC module instance that the
// pass is running part of.
// See OperationPass<> comments for all details/restrictions of OperationPass.
//
// When adding new Pass to TAC, users should use this class as the base class
// as it provides access to the TAC module.
template <typename T>
class TacPass : public OperationPass<T> {
 public:

// returns an error.
func NegotiateOutputMediaType(req *http.Request, ns runtime.NegotiatedSerializer, restrictions EndpointRestrictions) (MediaTypeOptions, runtime.SerializerInfo, error) {
	mediaType, ok := NegotiateMediaTypeOptions(req.Header.Get("Accept"), ns.SupportedMediaTypes(), restrictions)
	if !ok {
		supported, _ := MediaTypesForSerializer(ns)
		return mediaType, runtime.SerializerInfo{}, NewNotAcceptableError(supported)