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Localize PatchTransformer, PatchJson6902Transformer (#4920)

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* Localize patches, patchesJson6902 custom transformers

* Improve readability
This commit is contained in:
Anna Song
2022-12-16 12:52:17 -05:00
committed by GitHub
parent ef60d5f9bb
commit a1bfab382a
3 changed files with 237 additions and 90 deletions
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58
api/internal/localizer/builtinplugins.go
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@@ -4,35 +4,51 @@
package localizer
import (
"sigs.k8s.io/kustomize/api/filters/filtersutil"
"sigs.k8s.io/kustomize/api/filters/fsslice"
"sigs.k8s.io/kustomize/api/internal/plugins/builtinhelpers"
"sigs.k8s.io/kustomize/api/konfig"
"sigs.k8s.io/kustomize/api/types"
"sigs.k8s.io/kustomize/kyaml/errors"
"sigs.k8s.io/kustomize/kyaml/kio"
"sigs.k8s.io/kustomize/kyaml/resid"
"sigs.k8s.io/kustomize/kyaml/yaml"
)
// localizeBuiltinGenerators localizes built-in generators with file paths.
// localizeBuiltinPlugins localizes built-in plugins with file paths.
// Note that this excludes helm, which needs a repo.
type localizeBuiltinGenerators struct {
type localizeBuiltinPlugins struct {
lc *localizer
}
var _ kio.Filter = &localizeBuiltinGenerators{}
var _ kio.Filter = &localizeBuiltinPlugins{}
// Filter localizes the built-in generators with file paths. Filter returns an error if
// generators contains a resource that is not a built-in generator, cannot contain a file path,
// needs more than a file path like helm, or is not localizable.
// TODO(annasong): implement
func (lbg *localizeBuiltinGenerators) Filter(generators []*yaml.RNode) ([]*yaml.RNode, error) {
return generators, nil
// Filter localizes the built-in plugins with file paths.
func (lbp *localizeBuiltinPlugins) Filter(plugins []*yaml.RNode) ([]*yaml.RNode, error) {
localizedPlugins, err := kio.FilterAll(fsslice.Filter{
FsSlice: types.FsSlice{
types.FieldSpec{
Gvk: resid.Gvk{Version: konfig.BuiltinPluginApiVersion, Kind: builtinhelpers.PatchTransformer.String()},
Path: "path",
},
types.FieldSpec{
Gvk: resid.Gvk{Version: konfig.BuiltinPluginApiVersion, Kind: builtinhelpers.PatchJson6902Transformer.String()},
Path: "path",
},
},
SetValue: lbp.localizeNode,
}).Filter(plugins)
// TODO(annasong): localize ReplacementTransformer, PatchStrategicMergeTransformer, ConfigMapGenerator, SecretGenerator
return localizedPlugins, errors.Wrap(err)
}
// localizeBuiltinTransformers localizes built-in transformers with file paths.
type localizeBuiltinTransformers struct {
}
var _ kio.Filter = &localizeBuiltinTransformers{}
// Filter localizes the built-in transformers with file paths. Filter returns an error if
// transformers contains a resource that is not a built-in transformer, cannot contain a file path,
// or is not localizable.
// TODO(annasong): implement
func (lbt *localizeBuiltinTransformers) Filter(transformers []*yaml.RNode) ([]*yaml.RNode, error) {
return transformers, nil
// localizeNode sets the scalar node to its value localized as a file path.
func (lbp *localizeBuiltinPlugins) localizeNode(node *yaml.RNode) error {
localizedPath, err := lbp.lc.localizeFile(node.YNode().Value)
if err != nil {
return errors.WrapPrefixf(err, "unable to localize built-in plugin path")
}
return filtersutil.SetScalar(localizedPath)(node)
}