mirror of
https://github.com/ahmetb/kubectx.git
synced 2026-05-15 03:32:02 +00:00
c20f59254a
- Add description strings from bash scripts to Go help output - Add -r/--readonly usage lines to kubectx help - Reorder help to show -s/-r flags more prominently - Normalize flag separators to comma-space consistently Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
65 lines
2.0 KiB
Go
65 lines
2.0 KiB
Go
// Copyright 2021 Google LLC
|
|
//
|
|
// 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 main
|
|
|
|
import (
|
|
"fmt"
|
|
"io"
|
|
"os"
|
|
"path/filepath"
|
|
"strings"
|
|
)
|
|
|
|
// HelpOp describes printing help.
|
|
type HelpOp struct{}
|
|
|
|
func (_ HelpOp) Run(stdout, _ io.Writer) error {
|
|
return printUsage(stdout)
|
|
}
|
|
|
|
func printUsage(out io.Writer) error {
|
|
help := `Switch between Kubernetes namespaces.
|
|
|
|
USAGE:
|
|
%PROG% : list the namespaces in the current context
|
|
%PROG% <NAME> : change the active namespace of current context
|
|
%PROG% <NAME> --force/-f : force change the active namespace of current context (even if it doesn't exist)
|
|
%PROG% - : switch to the previous namespace in this context
|
|
%PROG% -c, --current : show the current namespace
|
|
%PROG% -h,--help : show this message
|
|
%PROG% -u,--unset : unset the namespace choice (set to 'default')
|
|
%PROG% -V,--version : show version`
|
|
|
|
// TODO this replace logic is duplicated between this and kubectx
|
|
help = strings.ReplaceAll(help, "%PROG%", selfName())
|
|
|
|
_, err := fmt.Fprintf(out, "%s\n", help)
|
|
if err != nil {
|
|
return fmt.Errorf("write error: %w", err)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// selfName guesses how the user invoked the program.
|
|
func selfName() string {
|
|
// TODO this method is duplicated between this and kubectx
|
|
me := filepath.Base(os.Args[0])
|
|
pluginPrefix := "kubectl-"
|
|
if strings.HasPrefix(me, pluginPrefix) {
|
|
return "kubectl " + strings.TrimPrefix(me, pluginPrefix)
|
|
}
|
|
return "kubens"
|
|
}
|