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Merge pull request #149 from Nordix/refactor-mutations
Refactor task package to make mutations more visible
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,87 @@ | ||
| // Copyright 2024 The kpt and Nephio Authors | ||
| // | ||
| // 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 task | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
|
|
||
| api "github.com/nephio-project/porch/api/porch/v1alpha1" | ||
| "github.com/nephio-project/porch/pkg/repository" | ||
| "go.opentelemetry.io/otel/trace" | ||
| ) | ||
|
|
||
| var _ mutation = &replaceResourcesMutation{} | ||
|
|
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| type replaceResourcesMutation struct { | ||
| newResources *api.PackageRevisionResources | ||
| oldResources *api.PackageRevisionResources | ||
| } | ||
|
|
||
| func (m *replaceResourcesMutation) apply(ctx context.Context, resources repository.PackageResources) (repository.PackageResources, *api.TaskResult, error) { | ||
| _, span := tracer.Start(ctx, "mutationReplaceResources::Apply", trace.WithAttributes()) | ||
| defer span.End() | ||
|
|
||
| patch := &api.PackagePatchTaskSpec{} | ||
|
|
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| old := resources.Contents | ||
| new, err := healConfig(old, m.newResources.Spec.Resources) | ||
| if err != nil { | ||
| return repository.PackageResources{}, nil, fmt.Errorf("failed to heal resources: %w", err) | ||
| } | ||
|
|
||
| for k, newV := range new { | ||
| oldV, ok := old[k] | ||
| // New config or changed config | ||
| if !ok { | ||
| patchSpec := api.PatchSpec{ | ||
| File: k, | ||
| PatchType: api.PatchTypeCreateFile, | ||
| Contents: newV, | ||
| } | ||
| patch.Patches = append(patch.Patches, patchSpec) | ||
| } else if newV != oldV { | ||
| patchSpec, err := GeneratePatch(k, oldV, newV) | ||
| if err != nil { | ||
| return repository.PackageResources{}, nil, fmt.Errorf("error generating patch: %w", err) | ||
| } | ||
| if patchSpec.Contents == "" { | ||
| continue | ||
| } | ||
| patch.Patches = append(patch.Patches, patchSpec) | ||
| } | ||
| } | ||
| for k := range old { | ||
| // Deleted config | ||
| if _, ok := new[k]; !ok { | ||
| patchSpec := api.PatchSpec{ | ||
| File: k, | ||
| PatchType: api.PatchTypeDeleteFile, | ||
| } | ||
| patch.Patches = append(patch.Patches, patchSpec) | ||
| } | ||
| } | ||
| // If patch is empty, don't create a Task. | ||
| var taskResult *api.TaskResult | ||
| if len(patch.Patches) > 0 { | ||
| taskResult = &api.TaskResult{ | ||
| Task: &api.Task{ | ||
| Type: api.TaskTypePatch, | ||
| Patch: patch, | ||
| }, | ||
| } | ||
| } | ||
| return repository.PackageResources{Contents: new}, taskResult, nil | ||
| } |
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