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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>
76 lines
2.5 KiB
Go
76 lines
2.5 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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"bytes"
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"io"
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"strings"
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)
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type MockKubeconfigLoader struct {
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in io.Reader
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out bytes.Buffer
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}
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func (t *MockKubeconfigLoader) Read(p []byte) (n int, err error) { return t.in.Read(p) }
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func (t *MockKubeconfigLoader) Write(p []byte) (n int, err error) { return t.out.Write(p) }
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func (t *MockKubeconfigLoader) Close() error { return nil }
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func (t *MockKubeconfigLoader) Reset() error { return nil }
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func (t *MockKubeconfigLoader) Load() ([]ReadWriteResetCloser, error) {
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return []ReadWriteResetCloser{ReadWriteResetCloser(t)}, nil
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}
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func (t *MockKubeconfigLoader) Output() string { return t.out.String() }
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func WithMockKubeconfigLoader(kubecfg string) *MockKubeconfigLoader {
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return &MockKubeconfigLoader{in: strings.NewReader(kubecfg)}
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}
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// mockFile is a single in-memory kubeconfig file for multi-file testing.
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type mockFile struct {
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in io.Reader
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out bytes.Buffer
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}
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func (m *mockFile) Read(p []byte) (n int, err error) { return m.in.Read(p) }
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func (m *mockFile) Write(p []byte) (n int, err error) { return m.out.Write(p) }
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func (m *mockFile) Close() error { return nil }
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func (m *mockFile) Reset() error { return nil }
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// MockMultiKubeconfigLoader implements Loader for testing with multiple kubeconfig files.
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type MockMultiKubeconfigLoader struct {
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files []*mockFile
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}
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func (m *MockMultiKubeconfigLoader) Load() ([]ReadWriteResetCloser, error) {
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out := make([]ReadWriteResetCloser, len(m.files))
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for i, f := range m.files {
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out[i] = f
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}
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return out, nil
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}
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func (m *MockMultiKubeconfigLoader) OutputOf(index int) string {
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return m.files[index].out.String()
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}
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func WithMockMultiKubeconfigLoader(configs ...string) *MockMultiKubeconfigLoader {
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files := make([]*mockFile, len(configs))
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for i, c := range configs {
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files[i] = &mockFile{in: strings.NewReader(c)}
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}
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return &MockMultiKubeconfigLoader{files: files}
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}
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