/
resource_filter.go
206 lines (177 loc) · 3.53 KB
/
resource_filter.go
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// Copyright 2024 The Carvel Authors.
// SPDX-License-Identifier: Apache-2.0
package resources
import (
"encoding/json"
"fmt"
"time"
"github.com/vmware-tanzu/carvel-kapp/pkg/kapp/matcher" // TODO inject
"k8s.io/apimachinery/pkg/labels"
)
type ResourceFilter struct {
CreatedAtBeforeTime *time.Time
CreatedAtAfterTime *time.Time
Kinds []string
Namespaces []string
Names []string
KindNames []string
KindNamespaces []string
KindNsNames []string
Labels []string
BoolFilter *BoolFilter `json:"-"`
}
func (f ResourceFilter) Apply(resources []Resource) []Resource {
var result []Resource
for _, resource := range resources {
if f.Matches(resource) {
result = append(result, resource)
}
}
return result
}
func (f ResourceFilter) Matches(resource Resource) bool {
if f.BoolFilter != nil {
return f.BoolFilter.Matches(resource)
}
if f.CreatedAtBeforeTime != nil {
if resource.CreatedAt().After(*f.CreatedAtBeforeTime) {
return false
}
}
if f.CreatedAtAfterTime != nil {
if resource.CreatedAt().Before(*f.CreatedAtAfterTime) {
return false
}
}
if len(f.Kinds) > 0 {
var matched bool
for _, kind := range f.Kinds {
if matcher.NewStringMatcher(kind).Matches(resource.Kind()) {
matched = true
break
}
}
if !matched {
return false
}
}
if len(f.Namespaces) > 0 {
var matched bool
for _, ns := range f.Namespaces {
if matcher.NewStringMatcher(ns).Matches(resource.Namespace()) {
matched = true
break
}
}
if !matched {
return false
}
}
if len(f.Names) > 0 {
var matched bool
for _, name := range f.Names {
if matcher.NewStringMatcher(name).Matches(resource.Name()) {
matched = true
break
}
}
if !matched {
return false
}
}
if len(f.Labels) > 0 {
var matched bool
for _, label := range f.Labels {
labelSelector, err := labels.Parse(label)
if err != nil {
panic(fmt.Sprintf("Parsing label selector failed: %s", err))
}
if labelSelector.Matches(labels.Set(resource.Labels())) {
matched = true
break
}
}
if !matched {
return false
}
}
if len(f.KindNames) > 0 {
key := resource.Kind() + "/" + resource.Name()
var matched bool
for _, k := range f.KindNames {
if key == k {
matched = true
break
}
}
if !matched {
return false
}
}
if len(f.KindNamespaces) > 0 {
key := resource.Kind() + "/" + resource.Namespace()
var matched bool
for _, k := range f.KindNamespaces {
if key == k {
matched = true
break
}
}
if !matched {
return false
}
}
if len(f.KindNsNames) > 0 {
key := resource.Kind() + "/" + resource.Namespace() + "/" + resource.Name()
var matched bool
for _, k := range f.KindNsNames {
if key == k {
matched = true
break
}
}
if !matched {
return false
}
}
return true
}
type BoolFilter struct {
And []BoolFilter
Or []BoolFilter
Not *BoolFilter
Resource *ResourceFilter
}
func NewBoolFilterFromString(data string) (*BoolFilter, error) {
var filter BoolFilter
err := json.Unmarshal([]byte(data), &filter)
if err != nil {
return nil, err
}
return &filter, nil
}
func (m BoolFilter) Matches(res Resource) bool {
if len(m.And) > 0 {
for _, m2 := range m.And {
if !m2.Matches(res) {
return false
}
}
return true
}
if len(m.Or) > 0 {
for _, m2 := range m.Or {
if m2.Matches(res) {
return true
}
}
return false
}
if m.Not != nil {
return !m.Not.Matches(res)
}
if m.Resource != nil {
return m.Resource.Matches(res)
}
return false
}