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Extract out common parse-package logic (#3711)
We had this code duplicated in a few places also.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,105 @@ | ||
| // Copyright 2023 Google LLC | ||
| // | ||
| // 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 objects | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "path" | ||
| "strings" | ||
| "unicode" | ||
|
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| "k8s.io/apimachinery/pkg/apis/meta/v1/unstructured" | ||
| "k8s.io/klog/v2" | ||
| "sigs.k8s.io/yaml" | ||
| ) | ||
|
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| type Parser struct { | ||
| IncludeLocalConfig bool | ||
| } | ||
|
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| func (p Parser) AsUnstructureds(resources map[string]string) ([]*unstructured.Unstructured, error) { | ||
| objectList, err := p.AsObjectList(resources) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| unstructureds, err := objectList.AsUnstructured() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return unstructureds, nil | ||
| } | ||
|
|
||
| func (p Parser) AsObjectList(resources map[string]string) (*ObjectList, error) { | ||
| var items []*Object | ||
|
|
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| for filePath, fileContents := range resources { | ||
| ext := path.Ext(filePath) | ||
| ext = strings.ToLower(ext) | ||
|
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| parse := false | ||
| switch ext { | ||
| case ".yaml", ".yml": | ||
| parse = true | ||
|
|
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| default: | ||
| klog.Warningf("ignoring non-yaml file %s", filePath) | ||
| } | ||
|
|
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| if !parse { | ||
| continue | ||
| } | ||
| // TODO: Use https://github.com/kubernetes-sigs/kustomize/blob/a5b61016bb40c30dd1b0a78290b28b2330a0383e/kyaml/kio/byteio_reader.go#L170 or similar? | ||
| for _, s := range strings.Split(fileContents, "\n---\n") { | ||
| if isWhitespace(s) { | ||
| continue | ||
| } | ||
|
|
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| raw := []byte(s) | ||
| u := &unstructured.Unstructured{} | ||
| if err := yaml.Unmarshal(raw, &u); err != nil { | ||
| return nil, fmt.Errorf("error parsing yaml from %s: %w", filePath, err) | ||
| } | ||
|
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| annotations := u.GetAnnotations() | ||
|
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| if !p.IncludeLocalConfig { | ||
| s := annotations["config.kubernetes.io/local-config"] | ||
| if s == "true" { | ||
| continue | ||
| } | ||
| } | ||
|
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| obj := &Object{ | ||
| filePath: filePath, | ||
| raw: raw, | ||
| u: u, | ||
| } | ||
|
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| // TODO: sync with kpt logic; skip objects marked with the local-only annotation | ||
| items = append(items, obj) | ||
| } | ||
| } | ||
|
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| return &ObjectList{Items: items}, nil | ||
| } | ||
|
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| func isWhitespace(s string) bool { | ||
| for _, r := range s { | ||
| if !unicode.IsSpace(r) { | ||
| return false | ||
| } | ||
| } | ||
| return true | ||
| } |
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