mirror of
https://github.com/kubernetes-sigs/kustomize.git
synced 2026-05-18 04:55:08 +00:00
a7df00c07a
[doc]: https://github.com/golang/go/wiki/Modules#releasing-modules-v2-or-higher Per this Go modules [doc] a repo or branch that's already tagged v2 or higher should increment the major version (e.g. go to v3) when releasing their first Go module-based packages. At the moment, the kustomize repo has these top level packages in the sigs.k8s.io/kustomize module: - `cmd` - holds main program for kustomize Conceivably someone can depend on this package for integration tests. - `internal` - intentionally unreleased subpackages - `k8sdeps` - an adapter wrapping k8s dependencies This exists only for use in pre-Go-modules kustomize-into-kubectl integration and won't live much longer (as everything involved is switching to Go modules). - `pkg` - kustomize packages for export This should shrink in later versions, since the surface area is too large, containing sub-packages that should be in 'internal'. - `plugin` - holds main programs for plugins This PR changes the top level go.mod file from ``` module sigs.k8s.io/kustomize ``` to ``` module sigs.k8s.io/kustomize/v3 ``` and adjusts all import statements to reflect the change.
94 lines
2.5 KiB
Go
94 lines
2.5 KiB
Go
/*
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Copyright 2018 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package transformers
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import (
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"fmt"
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"sigs.k8s.io/kustomize/v3/pkg/resmap"
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)
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// multiTransformer contains a list of transformers.
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type multiTransformer struct {
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transformers []Transformer
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checkConflictEnabled bool
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}
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var _ Transformer = &multiTransformer{}
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// NewMultiTransformer constructs a multiTransformer.
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func NewMultiTransformer(t []Transformer) Transformer {
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r := &multiTransformer{
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transformers: make([]Transformer, len(t)),
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checkConflictEnabled: false}
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copy(r.transformers, t)
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return r
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}
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// NewMultiTransformerWithConflictCheck constructs a multiTransformer with checking of conflicts.
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func NewMultiTransformerWithConflictCheck(t []Transformer) Transformer {
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r := &multiTransformer{
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transformers: make([]Transformer, len(t)),
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checkConflictEnabled: true}
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copy(r.transformers, t)
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return r
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}
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// Transform prepends the name prefix.
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func (o *multiTransformer) Transform(m resmap.ResMap) error {
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if o.checkConflictEnabled {
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return o.transformWithCheckConflict(m)
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}
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return o.transform(m)
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}
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func (o *multiTransformer) transform(m resmap.ResMap) error {
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for _, t := range o.transformers {
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err := t.Transform(m)
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if err != nil {
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return err
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}
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}
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return nil
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}
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// Of the len(o.transformers)! possible transformer orderings, compare to a reversed order.
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// A spot check to perform when the transformations are supposed to be commutative.
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// Fail if there's a difference in the result.
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func (o *multiTransformer) transformWithCheckConflict(m resmap.ResMap) error {
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mcopy := m.DeepCopy()
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err := o.transform(m)
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if err != nil {
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return err
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}
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o.reverseTransformers()
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err = o.transform(mcopy)
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if err != nil {
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return err
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}
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err = m.ErrorIfNotEqualSets(mcopy)
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if err != nil {
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return fmt.Errorf("found conflict between different patches\n%v", err)
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}
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return nil
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}
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func (o *multiTransformer) reverseTransformers() {
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for i, j := 0, len(o.transformers)-1; i < j; i, j = i+1, j-1 {
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o.transformers[i], o.transformers[j] = o.transformers[j], o.transformers[i]
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}
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}
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