/
fieldselector.go
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/
fieldselector.go
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// Copyright 2022 The kpt Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package porch
import (
"fmt"
"github.com/GoogleContainerTools/kpt/porch/pkg/repository"
apierrors "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/fields"
"k8s.io/apimachinery/pkg/selection"
)
// convertPackageRevisionFieldSelector is the schema conversion function for normalizing the the FieldSelector for PackageRevision
func convertPackageFieldSelector(label, value string) (internalLabel, internalValue string, err error) {
switch label {
case "metadata.name":
return label, value, nil
case "metadata.namespace":
return label, value, nil
case "spec.packageName", "spec.repository":
return label, value, nil
default:
return "", "", fmt.Errorf("%q is not a known field selector", label)
}
}
// convertPackageRevisionFieldSelector is the schema conversion function for normalizing the the FieldSelector for PackageRevision
func convertPackageRevisionFieldSelector(label, value string) (internalLabel, internalValue string, err error) {
switch label {
case "metadata.name":
return label, value, nil
case "metadata.namespace":
return label, value, nil
case "spec.revision", "spec.packageName", "spec.repository":
return label, value, nil
default:
return "", "", fmt.Errorf("%q is not a known field selector", label)
}
}
// convertPackageRevisionResourcesFieldSelector is the schema conversion function for normalizing the the FieldSelector for PackageRevisionResources
func convertPackageRevisionResourcesFieldSelector(label, value string) (internalLabel, internalValue string, err error) {
return convertPackageRevisionFieldSelector(label, value)
}
// packageRevisionFilter filters packages, extending repository.ListPackageRevisionFilter
type packageRevisionFilter struct {
repository.ListPackageRevisionFilter
// Namespace filters by the namespace of the objects
Namespace string
// Repository restricts to repositories with the given name.
Repository string
}
// packageFilter filters packages, extending repository.ListPackageFilter
type packageFilter struct {
repository.ListPackageFilter
// Namespace filters by the namespace of the objects
Namespace string
// Repository restricts to repositories with the given name.
Repository string
}
// parsePackageFieldSelector parses client-provided fields.Selector into a packageFilter
func parsePackageFieldSelector(fieldSelector fields.Selector) (packageFilter, error) {
var filter packageFilter
if fieldSelector == nil {
return filter, nil
}
requirements := fieldSelector.Requirements()
for _, requirement := range requirements {
switch requirement.Operator {
case selection.Equals, selection.DoesNotExist:
if requirement.Value == "" {
return filter, apierrors.NewBadRequest(fmt.Sprintf("unsupported fieldSelector value %q for field %q with operator %q", requirement.Value, requirement.Field, requirement.Operator))
}
default:
return filter, apierrors.NewBadRequest(fmt.Sprintf("unsupported fieldSelector operator %q for field %q", requirement.Operator, requirement.Field))
}
switch requirement.Field {
case "metadata.name":
filter.KubeObjectName = requirement.Value
case "metadata.namespace":
filter.Namespace = requirement.Value
case "spec.packageName":
filter.Package = requirement.Value
case "spec.repository":
filter.Repository = requirement.Value
default:
return filter, apierrors.NewBadRequest(fmt.Sprintf("unknown fieldSelector field %q", requirement.Field))
}
}
return filter, nil
}
// parsePackageRevisionFieldSelector parses client-provided fields.Selector into a packageRevisionFilter
func parsePackageRevisionFieldSelector(fieldSelector fields.Selector) (packageRevisionFilter, error) {
var filter packageRevisionFilter
if fieldSelector == nil {
return filter, nil
}
requirements := fieldSelector.Requirements()
for _, requirement := range requirements {
switch requirement.Operator {
case selection.Equals, selection.DoesNotExist:
if requirement.Value == "" {
return filter, apierrors.NewBadRequest(fmt.Sprintf("unsupported fieldSelector value %q for field %q with operator %q", requirement.Value, requirement.Field, requirement.Operator))
}
default:
return filter, apierrors.NewBadRequest(fmt.Sprintf("unsupported fieldSelector operator %q for field %q", requirement.Operator, requirement.Field))
}
switch requirement.Field {
case "metadata.name":
filter.KubeObjectName = requirement.Value
case "metadata.namespace":
filter.Namespace = requirement.Value
case "spec.revision":
filter.Revision = requirement.Value
case "spec.packageName":
filter.Package = requirement.Value
case "spec.repository":
filter.Repository = requirement.Value
default:
return filter, apierrors.NewBadRequest(fmt.Sprintf("unknown fieldSelector field %q", requirement.Field))
}
}
return filter, nil
}
// parsePackageRevisionResourcesFieldSelector parses client-provided fields.Selector into a packageRevisionFilter
func parsePackageRevisionResourcesFieldSelector(fieldSelector fields.Selector) (packageRevisionFilter, error) {
// TOOD: This is a little weird, because we don't have the same fields on PackageRevisionResources.
// But we probably should have the key fields
return parsePackageRevisionFieldSelector(fieldSelector)
}