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prefixsuffix.go
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prefixsuffix.go
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// Copyright 2019 The Kubernetes Authors.
// SPDX-License-Identifier: Apache-2.0
package prefixsuffix
import (
"fmt"
"sigs.k8s.io/kustomize/api/filters/fsslice"
"sigs.k8s.io/kustomize/api/types"
"sigs.k8s.io/kustomize/kyaml/kio"
"sigs.k8s.io/kustomize/kyaml/yaml"
)
// Filter applies resource name prefix's and suffix's using the fieldSpecs
type Filter struct {
Prefix string `json:"prefix,omitempty" yaml:"prefix,omitempty"`
Suffix string `json:"suffix,omitempty" yaml:"suffix,omitempty"`
FsSlice types.FsSlice `json:"fieldSpecs,omitempty" yaml:"fieldSpecs,omitempty"`
}
var _ kio.Filter = Filter{}
func (ns Filter) Filter(nodes []*yaml.RNode) ([]*yaml.RNode, error) {
return kio.FilterAll(yaml.FilterFunc(ns.run)).Filter(nodes)
}
// Run runs the filter on a single node rather than a slice
func (ns Filter) run(node *yaml.RNode) (*yaml.RNode, error) {
// transformations based on data -- :)
err := node.PipeE(fsslice.Filter{
FsSlice: ns.FsSlice,
SetValue: ns.set,
CreateKind: yaml.ScalarNode, // Name is a ScalarNode
CreateTag: yaml.StringTag,
})
return node, err
}
func (ns Filter) set(node *yaml.RNode) error {
return fsslice.SetScalar(fmt.Sprintf(
"%s%s%s", ns.Prefix, node.YNode().Value, ns.Suffix))(node)
}