"k8s.io/mount-utils"

	"k8s.io/apimachinery/pkg/api/resource"
	"k8s.io/apimachinery/pkg/types"
)

// Dummy quota implementation for systems that do not implement support
// for volume quotas

var errNotImplemented = errors.New("not implemented")

func GetQuotaOnDir(_ mount.Interface, _ string) (common.QuotaID, error) {
	return common.BadQuotaID, errNotImplemented
}

// SupportsQuotas -- dummy implementation

type ResourceQuotaControllerConfiguration struct {
	// resourceQuotaSyncPeriod is the period for syncing quota usage status
	// in the system.
	ResourceQuotaSyncPeriod metav1.Duration
	// concurrentResourceQuotaSyncs is the number of resource quotas that are
	// allowed to sync concurrently. Larger number = more responsive quota
	// management, but more CPU (and network) load.
	ConcurrentResourceQuotaSyncs int32

	}

	fs.DurationVar(&o.ResourceQuotaSyncPeriod.Duration, "resource-quota-sync-period", o.ResourceQuotaSyncPeriod.Duration, "The period for syncing quota usage status in the system")
	fs.Int32Var(&o.ConcurrentResourceQuotaSyncs, "concurrent-resource-quota-syncs", o.ConcurrentResourceQuotaSyncs, "The number of resource quotas that are allowed to sync concurrently. Larger number = more responsive quota management, but more CPU (and network) load")
}

}

const (
	projectsHeader = `# This is a /etc/projects header
1048578:/quota/d
`
	projects1 = `1048577:/quota1/a
`
	projects2 = `1048577:/quota1/a
1048580:/quota1/b
`
	projects3 = `1048577:/quota1/a
1048580:/quota1/b
1048581:/quota2/b
`
	projects4 = `1048577:/quota1/a
1048581:/quota2/b
`
	projects5 = `1048581:/quota2/b
`

	projidHeader = `# This is a /etc/projid header
xxxxxx:1048579

func DiskUsage(path string) (UsageInfo, error) {
	var usage UsageInfo

	if path == "" {
		return usage, fmt.Errorf("invalid directory")
	}

	// First check whether the quota system knows about this directory
	// A nil quantity or error means that the path does not support quotas
	// or xfs_quota tool is missing and we should use other mechanisms.
	startTime := time.Now()
	consumption, _ := fsquota.GetConsumption(path)
	if consumption != nil {

		if err != nil {
			klog.V(3).Infof("Unable to check for quota support on %s: %s", dir, err.Error())
		} else if hasQuotas {
			klog.V(4).Infof("emptydir trying to assign quota %v on %s", mounterSize, dir)
			if err := fsquota.AssignQuota(ed.mounter, dir, ed.pod.UID, mounterSize); err != nil {
				klog.V(3).Infof("Set quota on %s failed %s", dir, err.Error())
				return err
			}
			return nil
		}
	}

	"k8s.io/apimachinery/pkg/runtime/schema"
	utilerrors "k8s.io/apimachinery/pkg/util/errors"
	utilruntime "k8s.io/apimachinery/pkg/util/runtime"
	"k8s.io/apimachinery/pkg/util/wait"
	quota "k8s.io/apiserver/pkg/quota/v1"
	"k8s.io/apiserver/pkg/quota/v1/generic"
	"k8s.io/client-go/tools/cache"
	"k8s.io/client-go/util/workqueue"
	"k8s.io/controller-manager/pkg/informerfactory"
	"k8s.io/kubernetes/pkg/controller"
)

type eventType int

	"k8s.io/apimachinery/pkg/labels"
	"k8s.io/apimachinery/pkg/runtime"
	"k8s.io/apimachinery/pkg/runtime/schema"
	"k8s.io/apimachinery/pkg/util/sets"
	"k8s.io/apiserver/pkg/admission"
	quota "k8s.io/apiserver/pkg/quota/v1"
	"k8s.io/apiserver/pkg/quota/v1/generic"
	"k8s.io/apiserver/pkg/util/feature"
	"k8s.io/utils/clock"

	resourcehelper "k8s.io/kubernetes/pkg/api/v1/resource"
	api "k8s.io/kubernetes/pkg/apis/core"

  // The name of the init container to use for the repairPods mode.
  string initContainerName = 10;
}

// Configuration for the resource quotas for the CNI DaemonSet.
message ResourceQuotas {
  // Controls whether to create resource quotas or not for the CNI DaemonSet.
  google.protobuf.BoolValue enabled = 1;

  // The hard limit on the number of pods in the namespace where the CNI DaemonSet is deployed.

//
// Keep in sync with cmd/dist/quoted.go
func Split(s string) ([]string, error) {
	// Split fields allowing '' or "" around elements.
	// Quotes further inside the string do not count.
	var f []string
	for len(s) > 0 {
		for len(s) > 0 && isSpaceByte(s[0]) {
			s = s[1:]
		}
		if len(s) == 0 {
			break
		}
		// Accepted quoted string. No unescaping inside.
		if s[0] == '"' || s[0] == '\'' {
			quote := s[0]
			s = s[1:]