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eb621b4406
Previously, kubectx would error with "multiple files in KUBECONFIG are currently not supported" when KUBECONFIG contained colon-separated paths. This is a common setup where users maintain separate kubeconfig files for different clusters/environments. This change evolves the internal Kubeconfig struct from holding a single file to a slice of file entries, matching kubectl's merge semantics: - Reading current-context: first file with a non-empty value wins - Writing current-context: always written to the first file - Listing contexts: merged from all files, first occurrence wins for duplicate names - Modifying a context (delete/rename/set-namespace): written to the file that owns that context - Missing files in the KUBECONFIG list are silently skipped (matching kubectl behavior), but permission errors are propagated The Loader interface already returned []ReadWriteResetCloser, so all public method signatures remain unchanged — zero modifications needed in cmd/kubectx/ or cmd/kubens/ callers. Fixes #485 Fixes #211 Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
45 lines
1.4 KiB
Go
45 lines
1.4 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 (
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"fmt"
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"sigs.k8s.io/kustomize/kyaml/yaml"
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)
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// GetCurrentContext returns "current-context" value from the first file
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// that has a non-empty current-context, or returns ("", nil) if not found.
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func (k *Kubeconfig) GetCurrentContext() (string, error) {
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for _, fe := range k.files {
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v, err := fe.config.Pipe(yaml.Get("current-context"))
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if err != nil {
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return "", fmt.Errorf("failed to read current-context: %w", err)
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}
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if s := yaml.GetValue(v); s != "" {
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return s, nil
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}
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}
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return "", nil
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}
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// UnsetCurrentContext clears the current-context field in the first file.
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func (k *Kubeconfig) UnsetCurrentContext() error {
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if len(k.files) == 0 {
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return errNoFiles
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}
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return k.files[0].config.PipeE(yaml.SetField("current-context", yaml.NewStringRNode("")))
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}
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