mirror of
https://github.com/ahmetb/kubectx.git
synced 2025-08-23 17:38:29 +00:00
78 lines
2.0 KiB
Go
78 lines
2.0 KiB
Go
// Copyright 2021 Google LLC
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package kubeconfig
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import "gopkg.in/yaml.v3"
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const (
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defaultNamespace = "default"
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)
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func (k *Kubeconfig) NamespaceOfContext(contextName string) (string, error) {
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ctx, err := k.contextNode(contextName)
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if err != nil {
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return "", err
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}
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ctxBody := valueOf(ctx, "context")
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if ctxBody == nil {
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return defaultNamespace, nil
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}
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ns := valueOf(ctxBody, "namespace")
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if ns == nil || ns.Value == "" {
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return defaultNamespace, nil
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}
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return ns.Value, nil
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}
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func (k *Kubeconfig) SetNamespace(ctxName string, ns string) error {
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ctxNode, err := k.contextNode(ctxName)
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if err != nil {
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return err
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}
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var ctxBodyNodeWasEmpty bool // actual namespace value is in contexts[index].context.namespace, but .context might not exist
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ctxBodyNode := valueOf(ctxNode, "context")
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if ctxBodyNode == nil {
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ctxBodyNodeWasEmpty = true
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ctxBodyNode = &yaml.Node{
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Kind: yaml.MappingNode,
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}
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}
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nsNode := valueOf(ctxBodyNode, "namespace")
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if nsNode != nil {
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nsNode.Value = ns
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return nil
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}
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keyNode := &yaml.Node{
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Kind: yaml.ScalarNode,
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Value: "namespace",
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Tag: "!!str"}
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valueNode := &yaml.Node{
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Kind: yaml.ScalarNode,
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Value: ns,
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Tag: "!!str"}
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ctxBodyNode.Content = append(ctxBodyNode.Content, keyNode, valueNode)
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if ctxBodyNodeWasEmpty {
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ctxNode.Content = append(ctxNode.Content, &yaml.Node{
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Kind: yaml.ScalarNode,
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Value: "context",
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Tag: "!!str",
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}, ctxBodyNode)
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}
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return nil
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}
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