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Localize patch, ReplacementTransformer (#4943)

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* Localize PatchStrategicMergeTransformer, ReplacementTransformer

* Improve readability
This commit is contained in:
Anna Song
2023-01-17 12:28:34 -08:00
committed by GitHub
parent db7b057956
commit 7899b80a00
3 changed files with 183 additions and 83 deletions
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73
api/internal/localizer/builtinplugins.go
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@@ -4,6 +4,7 @@
package localizer
import (
"sigs.k8s.io/kustomize/api/filters/fieldspec"
"sigs.k8s.io/kustomize/api/filters/filtersutil"
"sigs.k8s.io/kustomize/api/filters/fsslice"
"sigs.k8s.io/kustomize/api/internal/plugins/builtinhelpers"
@@ -19,36 +20,62 @@ import (
// Note that this excludes helm, which needs a repo.
type localizeBuiltinPlugins struct {
lc *localizer
// locPathFn is used by localizeNode to set the localized path on the plugin.
locPathFn func(string) (string, error)
}
var _ kio.Filter = &localizeBuiltinPlugins{}
// 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",
for _, singlePlugin := range plugins {
err := singlePlugin.PipeE(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",
},
types.FieldSpec{
Gvk: resid.Gvk{Version: konfig.BuiltinPluginApiVersion, Kind: builtinhelpers.ReplacementTransformer.String()},
Path: "replacements/path",
},
},
types.FieldSpec{
Gvk: resid.Gvk{Version: konfig.BuiltinPluginApiVersion, Kind: builtinhelpers.PatchJson6902Transformer.String()},
Path: "path",
SetValue: func(node *yaml.RNode) error {
lbp.locPathFn = lbp.lc.localizeFile
return lbp.localizeNode(node)
},
},
SetValue: lbp.localizeNode,
}).Filter(plugins)
// TODO(annasong): localize ReplacementTransformer, PatchStrategicMergeTransformer, ConfigMapGenerator, SecretGenerator
return localizedPlugins, errors.Wrap(err)
}
// 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")
}, fieldspec.Filter{
FieldSpec: types.FieldSpec{
Gvk: resid.Gvk{Version: konfig.BuiltinPluginApiVersion, Kind: builtinhelpers.PatchStrategicMergeTransformer.String()},
Path: "paths",
},
SetValue: func(node *yaml.RNode) error {
lbp.locPathFn = lbp.lc.localizeK8sResource
return errors.Wrap(node.VisitElements(lbp.localizeNode))
},
})
// TODO(annasong): localize ConfigMapGenerator, SecretGenerator,
// HelmChartInflationGenerator
if err != nil {
return nil, errors.Wrap(err)
}
}
return filtersutil.SetScalar(localizedPath)(node)
return plugins, nil
}
// localizeNode sets the scalar node to its value localized by locPathFn.
func (lbp *localizeBuiltinPlugins) localizeNode(node *yaml.RNode) error {
localizedPath, err := lbp.locPathFn(node.YNode().Value)
if err != nil {
return err
}
if localizedPath != "" {
err = filtersutil.SetScalar(localizedPath)(node)
}
return err
}