imagetools inspect: add --format flag

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

vendor/github.com/moby/buildkit/util/leaseutil/manager.go

@@ -0,0 +1,75 @@
+package leaseutil
+
+import (
+	"context"
+	"time"
+
+	"github.com/containerd/containerd/leases"
+	"github.com/containerd/containerd/namespaces"
+)
+
+func WithLease(ctx context.Context, ls leases.Manager, opts ...leases.Opt) (context.Context, func(context.Context) error, error) {
+	_, ok := leases.FromContext(ctx)
+	if ok {
+		return ctx, func(context.Context) error {
+			return nil
+		}, nil
+	}
+
+	l, err := ls.Create(ctx, append([]leases.Opt{leases.WithRandomID(), leases.WithExpiration(time.Hour)}, opts...)...)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	ctx = leases.WithLease(ctx, l.ID)
+	return ctx, func(ctx context.Context) error {
+		return ls.Delete(ctx, l)
+	}, nil
+}
+
+func MakeTemporary(l *leases.Lease) error {
+	if l.Labels == nil {
+		l.Labels = map[string]string{}
+	}
+	l.Labels["buildkit/lease.temporary"] = time.Now().UTC().Format(time.RFC3339Nano)
+	return nil
+}
+
+func WithNamespace(lm leases.Manager, ns string) leases.Manager {
+	return &nsLM{manager: lm, ns: ns}
+}
+
+type nsLM struct {
+	manager leases.Manager
+	ns      string
+}
+
+func (l *nsLM) Create(ctx context.Context, opts ...leases.Opt) (leases.Lease, error) {
+	ctx = namespaces.WithNamespace(ctx, l.ns)
+	return l.manager.Create(ctx, opts...)
+}
+
+func (l *nsLM) Delete(ctx context.Context, lease leases.Lease, opts ...leases.DeleteOpt) error {
+	ctx = namespaces.WithNamespace(ctx, l.ns)
+	return l.manager.Delete(ctx, lease, opts...)
+}
+
+func (l *nsLM) List(ctx context.Context, filters ...string) ([]leases.Lease, error) {
+	ctx = namespaces.WithNamespace(ctx, l.ns)
+	return l.manager.List(ctx, filters...)
+}
+
+func (l *nsLM) AddResource(ctx context.Context, lease leases.Lease, resource leases.Resource) error {
+	ctx = namespaces.WithNamespace(ctx, l.ns)
+	return l.manager.AddResource(ctx, lease, resource)
+}
+
+func (l *nsLM) DeleteResource(ctx context.Context, lease leases.Lease, resource leases.Resource) error {
+	ctx = namespaces.WithNamespace(ctx, l.ns)
+	return l.manager.DeleteResource(ctx, lease, resource)
+}
+
+func (l *nsLM) ListResources(ctx context.Context, lease leases.Lease) ([]leases.Resource, error) {
+	ctx = namespaces.WithNamespace(ctx, l.ns)
+	return l.manager.ListResources(ctx, lease)
+}