fix bats tests

update client-go to 0.28.5
use kyaml filters
2026-03-09 23:42:13 +00:00 · 2026-03-08 14:49:31 -07:00 · 2026-03-08 14:49:31 -07:00 · 2026-03-08 14:49:28 -07:00 · 2026-03-08 14:49:28 -07:00 · 2026-03-08 14:49:28 -07:00
40 changed files with 1021 additions and 731 deletions
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,23 +23,37 @@ jobs:
    - name: Checkout
      uses: actions/checkout@master
    - name: Setup Go
-      uses: actions/setup-go@v1
+      uses: actions/setup-go@v2
      with:
-        go-version: 1.16
+        go-version: '1.22'
+    - id: go-cache-paths
+      run: |
+        echo "::set-output name=go-build::$(go env GOCACHE)"
+        echo "::set-output name=go-mod::$(go env GOMODCACHE)"
+    - name: Go Build Cache
+      uses: actions/cache@v4
+      with:
+        path: ${{ steps.go-cache-paths.outputs.go-build }}
+        key: ${{ runner.os }}-go-build-${{ hashFiles('**/go.sum') }}
+    - name: Go Mod Cache
+      uses: actions/cache@v4
+      with:
+        path: ${{ steps.go-cache-paths.outputs.go-mod }}
+        key: ${{ runner.os }}-go-mod-${{ hashFiles('**/go.sum') }}
    - name: Ensure gofmt
      run: test -z "$(gofmt -s -d .)"
    - name: Ensure go.mod is already tidied
-      run: go mod tidy && git diff --no-patch --exit-code
+      run: go mod tidy && git diff --exit-code
    - name: Run unit tests
      run: go test ./...
    - name: Build with Goreleaser
-      uses: goreleaser/goreleaser-action@v1
+      uses: goreleaser/goreleaser-action@v2
      with:
        version: latest
-        args: release --snapshot --skip-publish --rm-dist
+        args: release --snapshot --skip publish,snapcraft --clean
    - name: Setup BATS framework
      run: sudo npm install -g bats
    - name: kubectx (Go) integration tests
-      run: COMMAND=./dist/kubectx_linux_amd64/kubectx bats test/kubectx.bats
+      run: COMMAND=./dist/kubectx_linux_amd64_v1/kubectx bats test/kubectx.bats
    - name: kubens (Go) integration tests
-      run: COMMAND=./dist/kubens_linux_amd64/kubens bats test/kubens.bats
+      run: COMMAND=./dist/kubens_linux_amd64_v1/kubens bats test/kubens.bats
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -19,19 +19,29 @@ on:
    - 'v*.*.*'
 jobs:
  goreleaser:
+    permissions:
+      contents: write
    runs-on: ubuntu-latest
    steps:
    - name: Checkout
      uses: actions/checkout@master
+    - run: git fetch --tags
    - name: Setup Go
-      uses: actions/setup-go@v1
+      uses: actions/setup-go@v2
      with:
-        go-version: 1.16
+        go-version: '1.22'
+    - name: Install Snapcraft
+      uses: samuelmeuli/action-snapcraft@v1
+    - name: Setup Snapcraft
+      run: |
+        # https://github.com/goreleaser/goreleaser/issues/1715
+        mkdir -p $HOME/.cache/snapcraft/download
+        mkdir -p $HOME/.cache/snapcraft/stage-packages
    - name: GoReleaser
      uses: goreleaser/goreleaser-action@v2
      with:
        version: latest
-        args: release --rm-dist
+        args: release --clean
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
    - name: Update new version for plugin 'ctx' in krew-index
@@ -42,3 +52,7 @@ jobs:
      uses: rajatjindal/krew-release-bot@v0.0.38
      with:
        krew_template_file: .krew/ns.yaml
+    - name: Publish Snaps to the Snap Store (stable channel)
+      run: for snap in $(ls dist/*.snap); do snapcraft upload --release=stable $snap; done
+      env:
+        SNAPCRAFT_STORE_CREDENTIALS: ${{ secrets.SNAPCRAFT_TOKEN }}
--- a/.goreleaser.yml
+++ b/.goreleaser.yml
@@ -1,3 +1,5 @@
+# yaml-language-server: $schema=https://goreleaser.com/static/schema.json
+
 # Copyright 2021 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
@@ -14,6 +16,8 @@

 # This is an example goreleaser.yaml file with some sane defaults.
 # Make sure to check the documentation at http://goreleaser.com
+
+version: 2
 before:
  hooks:
    - go mod download
@@ -32,6 +36,7 @@ builds:
    - arm
    - arm64
    - ppc64le
+    - s390x
  goarm: [6, 7]
 - id: kubens
  main: ./cmd/kubens
@@ -47,11 +52,18 @@ builds:
    - arm
    - arm64
    - ppc64le
+    - s390x
  goarm: [6, 7]
 archives:
 - id: kubectx-archive
  name_template: |-
-    kubectx_{{ .Tag }}_{{ .Os }}_{{ .Arch -}}
+    kubectx_{{ .Tag }}_{{ .Os }}_
+    {{- with .Arch -}}
+      {{- if (eq . "386") -}}i386
+      {{- else if (eq . "amd64") -}}x86_64
+      {{- else -}}{{- . -}}
+      {{- end -}} 
+    {{ end }}
    {{- with .Arm -}}
      {{- if (eq . "6") -}}hf
      {{- else -}}v{{- . -}}
@@ -59,16 +71,19 @@ archives:
    {{- end -}}
  builds:
    - kubectx
-  replacements:
-    386: i386
-    amd64: x86_64
  format_overrides:
    - goos: windows
      format: zip
  files: ["LICENSE"]
 - id: kubens-archive
  name_template: |-
-    kubens_{{ .Tag }}_{{ .Os }}_{{ .Arch -}}
+    kubens_{{ .Tag }}_{{ .Os }}_
+    {{- with .Arch -}}
+      {{- if (eq . "386") -}}i386
+      {{- else if (eq . "amd64") -}}x86_64
+      {{- else -}}{{- . -}}
+      {{- end -}}
+    {{ end }}
    {{- with .Arm -}}
      {{- if (eq . "6") -}}hf
      {{- else -}}v{{- . -}}
@@ -76,9 +91,6 @@ archives:
    {{- end -}}
  builds:
    - kubens
-  replacements:
-    386: i386
-    amd64: x86_64
  format_overrides:
    - goos: windows
      format: zip
@@ -90,3 +102,20 @@ release:
  extra_files:
    - glob: ./kubens
    - glob: ./kubectx
+snapcrafts:
+  - id: kubectx
+    name: kubectx
+    summary: 'kubectx + kubens: Power tools for kubectl'
+    description: |
+      kubectx is a tool to switch between contexts (clusters) on kubectl faster.
+      kubens is a tool to switch between Kubernetes namespaces (and configure them for kubectl) easily.
+    grade: stable
+    confinement: classic
+    base: core20
+    apps:
+      kubectx:
+        command: kubectx
+        completer: completion/kubectx.bash
+      kubens:
+        command: kubens
+        completer: completion/kubens.bash
--- a/README.md
+++ b/README.md
@@ -2,117 +2,110 @@

 ![Latest GitHub release](https://img.shields.io/github/release/ahmetb/kubectx.svg)
 ![GitHub stars](https://img.shields.io/github/stars/ahmetb/kubectx.svg?label=github%20stars)
+![Homebrew downloads](https://img.shields.io/homebrew/installs/dy/kubectx?label=macOS%20installs)
 [![Go implementation (CI)](https://github.com/ahmetb/kubectx/workflows/Go%20implementation%20(CI)/badge.svg)](https://github.com/ahmetb/kubectx/actions?query=workflow%3A"Go+implementation+(CI)")
 ![Proudly written in Bash](https://img.shields.io/badge/written%20in-bash-ff69b4.svg)

 This repository provides both `kubectx` and `kubens` tools.
 [Install &rarr;](#installation)

-> **🥳📰 NEWS:** With v0.9.0 `kubectx` and `kubens` **are now rewritten in Go**.
-> (Don't worry, our lovely **bash** versions are still available!) Please test
-> this new Go binaries by downloading them from
-> [**Releases &rarr;**](https://github.com/ahmetb/kubectx/releases)
+## What are `kubectx` and `kubens`?

-**`kubectx`** helps you switch between clusters back and forth:
+**kubectx** is a tool to switch between contexts (clusters) on kubectl
+faster.<br/>
+**kubens** is a tool to switch between Kubernetes namespaces (and
+configure them for kubectl) easily.
+
+Here's a **`kubectx`** demo:
 ![kubectx demo GIF](img/kubectx-demo.gif)

-**`kubens`** helps you switch between Kubernetes namespaces smoothly:
+...and here's a **`kubens`** demo:
 ![kubens demo GIF](img/kubens-demo.gif)

-# kubectx(1)
-
-kubectx is a utility to manage and switch between kubectl(1) contexts.
-
-```
-USAGE:
-  kubectx                   : list the contexts
-  kubectx <NAME>            : switch to context <NAME>
-  kubectx -                 : switch to the previous context
-  kubectx -c, --current     : show the current context name
-  kubectx <NEW_NAME>=<NAME> : rename context <NAME> to <NEW_NAME>
-  kubectx <NEW_NAME>=.      : rename current-context to <NEW_NAME>
-  kubectx -d <NAME>         : delete context <NAME> ('.' for current-context)
-                              (this command won't delete the user/cluster entry
-                              that is used by the context)
-  kubectx -u, --unset       : unset the current context
-```
-
-### Usage
+### Examples

 ```sh
+# switch to another cluster that's in kubeconfig
 $ kubectx minikube
 Switched to context "minikube".

+# switch back to previous cluster
 $ kubectx -
 Switched to context "oregon".

-$ kubectx -
-Switched to context "minikube".
+# start an "isolated shell" that only has a single context
+$ kubectx -s minikube

+# rename context
 $ kubectx dublin=gke_ahmetb_europe-west1-b_dublin
-Context "dublin" set.
-Aliased "gke_ahmetb_europe-west1-b_dublin" as "dublin".
-```
+Context "gke_ahmetb_europe-west1-b_dublin" renamed to "dublin".

-`kubectx` supports <kbd>Tab</kbd> completion on bash/zsh/fish shells to help with
-long context names. You don't have to remember full context names anymore.
-
-----
-
-# kubens(1)
-
-kubens is a utility to switch between Kubernetes namespaces.
-
-```
-USAGE:
-  kubens                    : list the namespaces
-  kubens <NAME>             : change the active namespace
-  kubens -                  : switch to the previous namespace
-  kubens -c, --current      : show the current namespace
-```
-
-
-### Usage
-
-```sh
+# change the active namespace on kubectl
 $ kubens kube-system
 Context "test" set.
 Active namespace is "kube-system".

+# go back to the previous namespace
 $ kubens -
 Context "test" set.
 Active namespace is "default".
+
+# change the active namespace even if it doesn't exist
+$ kubens not-found-namespace --force
+Context "test" set.
+Active namespace is "not-found-namespace".
+---
+$ kubens not-found-namespace -f
+Context "test" set.
+Active namespace is "not-found-namespace".
 ```

-`kubens` also supports <kbd>Tab</kbd> completion on bash/zsh/fish shells.
+If you have [`fzf`](https://github.com/junegunn/fzf) installed, you can also
+**interactively** select a context or cluster, or fuzzy-search by typing a few
+characters. To learn more, read [interactive mode &rarr;](#interactive-mode)
+
+Both `kubectx` and `kubens` support <kbd>Tab</kbd> completion on bash/zsh/fish
+shells to help with long context names. You don't have to remember full context
+names anymore.

 -----

 ## Installation

-> **🥳📰 NEWS:** With v0.9.0 `kubectx` and `kubens` **are now rewritten in Go**.
-> (Don't worry, our lovely **bash** versions are still available!) Please test
-> this new Go binaries by downloading them from
-> [**Releases &rarr;**](https://github.com/ahmetb/kubectx/releases)
+Stable versions of `kubectx` and `kubens` are small bash scripts that you
+can find in this repository.

-There are several installation options:
+Starting with v0.9.0, `kubectx` and `kubens` **are now rewritten in Go**.  They
+should work the same way (and we'll keep the bash-based implementations around)
+but the new features will be added to the new Go programs.  Please help us test
+this new Go implementation by downloading the binaries from the [**Releases page
+&rarr;**](https://github.com/ahmetb/kubectx/releases)

- As kubectl plugins (macOS/Linux)
- macOS
-  - Homebrew (recommended)
-  - MacPorts
- Linux
-  - Debian
-  - Arch Linux
-  - Homebrew
-  - Manual installation
+**Installation options:**
+
+- [as kubectl plugins (macOS & Linux)](#kubectl-plugins-macos-and-linux)
+- [with Homebrew (macOS & Linux)](#homebrew-macos-and-linux)
+- [with MacPorts (macOS)](#macports-macos)
+- [with apt (Debian)](#apt-debian)
+- [with pacman (Arch Linux)](#pacman-arch-linux)
+- [with Chocolatey (Windows)](#windows-installation-using-chocolatey)
+- [Windows Installation (using Scoop)](#windows-installation-using-scoop)
+- [with winget (Windows)](#windows-installation-using-winget)
+- [manually (macOS & Linux)](#manual-installation-macos-and-linux)
+
+If you like to add context/namespace information to your shell prompt (`$PS1`),
+you can try out [kube-ps1].
+
+[kube-ps1]: https://github.com/jonmosco/kube-ps1

 ### Kubectl Plugins (macOS and Linux)

-You can install and use [Krew](https://github.com/kubernetes-sigs/krew/) kubectl
-plugin manager to get `kubectx` and `kubens`. **NOTE:** This will not install
-shell completion scripts, if you want those, choose another installation method
-below.
+You can install and use the [Krew](https://github.com/kubernetes-sigs/krew/) kubectl
+plugin manager to get `kubectx` and `kubens`.
+
+**Note:** This will not install the shell completion scripts. If you want them,
+*choose another installation method
+or install the scripts [manually](#manual-installation-macos-and-linux).

 ```sh
 kubectl krew install ctx
@@ -121,33 +114,30 @@ kubectl krew install ns

 After installing, the tools will be available as `kubectl ctx` and `kubectl ns`.

-### macOS
+### Homebrew (macOS and Linux)

-#### Homebrew
+If you use [Homebrew](https://brew.sh/) you can install like this:

-:confetti_ball: If you use [Homebrew](https://brew.sh/) you can install like this:
+```sh
+brew install kubectx
+```

-    brew install kubectx
+This command will set up bash/zsh/fish completion scripts automatically. Make sure you [configure your shell](https://docs.brew.sh/Shell-Completion) to load completions for installed Homebrew formulas.

-This command will set up bash/zsh/fish completion scripts automatically.

- If you like to add context/namespace info to your shell prompt (`$PS1`),
-  I recommend trying out [kube-ps1](https://github.com/jonmosco/kube-ps1).
-
-#### MacPorts
+### MacPorts (macOS)

 If you use [MacPorts](https://www.macports.org) you can install like this:

-    sudo port install kubectx
+```sh
+sudo port install kubectx
+```

-### Linux
-
-#### Debian
+### apt (Debian)

 ``` bash
 sudo apt install kubectx
 ```
-
 Newer versions might be available on repos like
 [Debian Buster (testing)](https://packages.debian.org/buster/kubectx),
 [Sid (unstable)](https://packages.debian.org/sid/kubectx)
@@ -155,7 +145,8 @@ Newer versions might be available on repos like
 testing/unstable repos, check out the
 [Debian Wiki](https://wiki.debian.org/DebianReleases)_):

-#### Arch Linux
+
+### pacman (Arch Linux)

 Available as official Arch Linux package. Install it via:

@@ -163,20 +154,32 @@ Available as official Arch Linux package. Install it via:
 sudo pacman -S kubectx
 ```

-#### Homebrew
+### Windows Installation (using Chocolatey)

-:confetti_ball: If you use [Homebrew](https://brew.sh/) you can install like this:
+Available as packages on [Chocolatey](https://chocolatey.org/why-chocolatey)
+```pwsh
+choco install kubens kubectx
+```

-    brew install kubectx
+### Windows Installation (using Scoop)

-This command will set up bash/zsh/fish completion scripts automatically.
+Available as packages on [Scoop](https://scoop.sh/)
+```pwsh
+scoop bucket add main
+scoop install main/kubens main/kubectx
+```

- If you like to add context/namespace info to your shell prompt (`$PS1`),
-  I recommend trying out [kube-ps1](https://github.com/jonmosco/kube-ps1).
+### Windows Installation (using winget)

-#### Manual
+Available as packages on [winget](https://learn.microsoft.com/en-us/windows/package-manager/)
+```pwsh
+winget install --id ahmetb.kubectx
+winget install --id ahmetb.kubens
+```

-Since `kubectx`/`kubens` are written in Bash, you should be able to install
+### Manual Installation (macOS and Linux)
+
+Since `kubectx` and `kubens` are written in Bash, you should be able to install
 them to any POSIX environment that has Bash installed.

 - Download the `kubectx`, and `kubens` scripts.
@@ -185,38 +188,6 @@ them to any POSIX environment that has Bash installed.
  - or save them to a directory, then create symlinks to `kubectx`/`kubens` from
    somewhere in your `PATH`, like `/usr/local/bin`
 - Make `kubectx` and `kubens` executable (`chmod +x ...`)
- Install bash/zsh/fish [completion scripts](completion/).
-  - For zsh:
-    The completion scripts have to be in a path that belongs to `$fpath`. Either link or copy them to an existing folder.
-    If using oh-my-zsh you can do as follows:
-    ```bash
-    mkdir -p ~/.oh-my-zsh/completions
-    chmod -R 755 ~/.oh-my-zsh/completions
-    ln -s /opt/kubectx/completion/kubectx.zsh ~/.oh-my-zsh/completions/_kubectx.zsh
-    ln -s /opt/kubectx/completion/kubens.zsh ~/.oh-my-zsh/completions/_kubens.zsh
-    ```
-    Note that the leading underscore seems to be a convention. If completion doesn't work, add `autoload -U compinit && compinit` to your `.zshrc` (similar to [`zsh-completions`](https://github.com/zsh-users/zsh-completions/blob/master/README.md#oh-my-zsh)).
-    If not using oh-my-zsh, you could link to `/usr/share/zsh/functions/Completion` (might require sudo), depending on the `$fpath` of your zsh installation.
-    In case of error, calling `compaudit` might help.
-  - For bash:
-    ```bash
-    git clone https://github.com/ahmetb/kubectx.git ~/.kubectx
-    COMPDIR=$(pkg-config --variable=completionsdir bash-completion)
-    ln -sf ~/.kubectx/completion/kubens.bash $COMPDIR/kubens
-    ln -sf ~/.kubectx/completion/kubectx.bash $COMPDIR/kubectx
-    cat << FOE >> ~/.bashrc
-
-
-    #kubectx and kubens
-    export PATH=~/.kubectx:\$PATH
-    FOE
-    ```
-  - For fish:
-    ```fish
-    mkdir -p ~/.config/fish/completions
-    ln -s /opt/kubectx/completion/kubectx.fish ~/.config/fish/completions/
-    ln -s /opt/kubectx/completion/kubens.fish ~/.config/fish/completions/
-    ```

 Example installation steps:

@@ -226,61 +197,118 @@ sudo ln -s /opt/kubectx/kubectx /usr/local/bin/kubectx
 sudo ln -s /opt/kubectx/kubens /usr/local/bin/kubens
 ```

+If you also want to have shell completions, pick an installation method for the
+[completion scripts](completion/) that fits your system best: [`zsh` with
+`antibody`](#completion-scripts-for-zsh-with-antibody), [plain
+`zsh`](#completion-scripts-for-plain-zsh),
+[`bash`](#completion-scripts-for-bash) or
+[`fish`](#completion-scripts-for-fish).
+
+#### Completion scripts for `zsh` with [antibody](https://getantibody.github.io)
+
+Add this line to your [Plugins File](https://getantibody.github.io/usage/) (e.g.
+`~/.zsh_plugins.txt`):
+
+```
+ahmetb/kubectx path:completion kind:fpath
+```
+
+Depending on your setup, you might or might not need to call `compinit` or
+`autoload -U compinit && compinit` in your `~/.zshrc` after you load the Plugins
+file. If you use [oh-my-zsh](https://github.com/ohmyzsh/ohmyzsh), load the
+completions before you load `oh-my-zsh` because `oh-my-zsh` will call
+`compinit`. 
+
+#### Completion scripts for plain `zsh`
+
+The completion scripts have to be in a path that belongs to `$fpath`. Either
+link or copy them to an existing folder.
+
+Example with [`oh-my-zsh`](https://github.com/ohmyzsh/ohmyzsh):
+
+```bash
+mkdir -p ~/.oh-my-zsh/custom/completions
+chmod -R 755 ~/.oh-my-zsh/custom/completions
+ln -s /opt/kubectx/completion/_kubectx.zsh ~/.oh-my-zsh/custom/completions/_kubectx.zsh
+ln -s /opt/kubectx/completion/_kubens.zsh ~/.oh-my-zsh/custom/completions/_kubens.zsh
+echo "fpath=($ZSH/custom/completions $fpath)" >> ~/.zshrc
+```
+
+If completion doesn't work, add `autoload -U compinit && compinit` to your
+`.zshrc` (similar to
+[`zsh-completions`](https://github.com/zsh-users/zsh-completions/blob/master/README.md#oh-my-zsh)).
+
+If you are not using [`oh-my-zsh`](https://github.com/ohmyzsh/ohmyzsh), you
+could link to `/usr/share/zsh/functions/Completion` (might require sudo),
+depending on the `$fpath` of your zsh installation.
+
+In case of errors, calling `compaudit` might help.
+
+#### Completion scripts for `bash`
+
+```bash
+git clone https://github.com/ahmetb/kubectx.git ~/.kubectx
+COMPDIR=$(pkg-config --variable=completionsdir bash-completion)
+ln -sf ~/.kubectx/completion/kubens.bash $COMPDIR/kubens
+ln -sf ~/.kubectx/completion/kubectx.bash $COMPDIR/kubectx
+cat << EOF >> ~/.bashrc
+
+
+#kubectx and kubens
+export PATH=~/.kubectx:\$PATH
+EOF
+```
+
+#### Completion scripts for `fish`
+
+```fish
+mkdir -p ~/.config/fish/completions
+ln -s /opt/kubectx/completion/kubectx.fish ~/.config/fish/completions/
+ln -s /opt/kubectx/completion/kubens.fish ~/.config/fish/completions/
+```
+
 -----

 ### Interactive mode

 If you want `kubectx` and `kubens` commands to present you an interactive menu
 with fuzzy searching, you just need to [install
-`fzf`](https://github.com/junegunn/fzf) in your PATH.
+`fzf`](https://github.com/junegunn/fzf) in your `$PATH`.

 ![kubectx interactive search with fzf](img/kubectx-interactive.gif)

-If you have `fzf` installed, but want to opt out of using this feature, set the environment variable `KUBECTX_IGNORE_FZF=1`.
-
-If you want to keep `fzf` interactive mode but need the default behavior of the command, you can do it using Unix composability:
-```
-kubectx | cat
-```
+If you have `fzf` installed, but want to opt out of using this feature, set the
+environment variable `KUBECTX_IGNORE_FZF=1`.

+If you want to keep `fzf` interactive mode but need the default behavior of the
+command, you can do it by piping the output to another command (e.g. `kubectx |
+cat `).

 -----

 ### Customizing colors

-If you like to customize the colors indicating the current namespace or context, set the environment variables `KUBECTX_CURRENT_FGCOLOR` and `KUBECTX_CURRENT_BGCOLOR` (refer color codes [here](https://linux.101hacks.com/ps1-examples/prompt-color-using-tput/)):
+If you like to customize the colors indicating the current namespace or context,
+set the environment variables `KUBECTX_CURRENT_FGCOLOR` and
+`KUBECTX_CURRENT_BGCOLOR` (refer color codes
+[here](https://linux.101hacks.com/ps1-examples/prompt-color-using-tput/)):

-```
+```sh
 export KUBECTX_CURRENT_FGCOLOR=$(tput setaf 6) # blue text
 export KUBECTX_CURRENT_BGCOLOR=$(tput setab 7) # white background
 ```

 Colors in the output can be disabled by setting the
-[`NO_COLOR`](http://no-color.org/) environment variable.
+[`NO_COLOR`](https://no-color.org/) environment variable.

 -----

-####  Users
-
-| What are others saying about kubectx? |
-| ---- |
-| _“Thank you for kubectx & kubens - I use them all the time & have them in my k8s toolset to maintain happiness :) ”_ – [@pbouwer](https://twitter.com/pbouwer/status/925896377929949184) |
-| _“I can't imagine working without kubectx and especially kubens anymore. It's pure gold.”_ – [@timoreimann](https://twitter.com/timoreimann/status/925801946757419008) |
-| _“I'm liking kubectx from @ahmetb, makes it super-easy to switch #Kubernetes contexts [...]”_ &mdash; [@lizrice](https://twitter.com/lizrice/status/928556415517589505) |
-| _“Also using it on a daily basis. This and my zsh config that shows me the current k8s context 😉”_ – [@puja108](https://twitter.com/puja108/status/928742521139810305) |
-| _“Lately I've found myself using the kubens command more than kubectx. Both very useful though :-)”_ – [@stuartleeks](https://twitter.com/stuartleeks/status/928562850464907264) |
-| _“yeah kubens rocks!”_ – [@embano1](https://twitter.com/embano1/status/928698440732815360) |
-| _“Special thanks to Ahmet Alp Balkan for creating kubectx, kubens, and kubectl aliases, as these tools made my life better.”_ – [@strebeld](https://medium.com/@strebeld/5-ways-to-enhance-kubectl-ux-97c8893227a) |
-| _“❤️ this shell script @ahmetb wrote to help make switching between kubectl config contexts a breeze.”_ – [@briandanowski](https://twitter.com/briandanowski/status/1085409568165896193) |
-
-> If you liked `kubectx`, you may like my [`kubectl-aliases`](https://github.com/ahmetb/kubectl-aliases) project, too.
-
-----
-
-Disclaimer: This is not an official Google product.
-
+If you liked `kubectx`, you may like my
+[`kubectl-aliases`](https://github.com/ahmetb/kubectl-aliases) project, too. I
+recommend pairing kubectx and kubens with [fzf](#interactive-mode) and
+[kube-ps1].

 #### Stargazers over time

-[![Stargazers over time](https://starcharts.herokuapp.com/ahmetb/kubectx.svg)](https://starcharts.herokuapp.com/ahmetb/kubectx)
-![Google Analytics](https://ga-beacon.appspot.com/UA-2609286-17/kubectx/README?pixel)
+[![Stargazers over time](https://starchart.cc/ahmetb/kubectx.svg)](https://starchart.cc/ahmetb/kubectx)
+![Google Analytics](https://ga-beacon.appspot.com/UA-2609286-17/kubectx/README?pixel) <!-- TODO broken since Aug 2021 as igrigorik left Google -->
--- a/cmd/kubectx/current.go
+++ b/cmd/kubectx/current.go
@@ -27,6 +27,9 @@ import (
 type CurrentOp struct{}

 func (_op CurrentOp) Run(stdout, _ io.Writer) error {
+	if err := checkIsolatedMode(); err != nil {
+		return err
+	}
 	kc := new(kubeconfig.Kubeconfig).WithLoader(kubeconfig.DefaultLoader)
 	defer kc.Close()
 	if err := kc.Parse(); err != nil {
--- a/cmd/kubectx/delete.go
+++ b/cmd/kubectx/delete.go
@@ -30,8 +30,11 @@ type DeleteOp struct {

 // deleteContexts deletes context entries one by one.
 func (op DeleteOp) Run(_, stderr io.Writer) error {
+	if err := checkIsolatedMode(); err != nil {
+		return err
+	}
 	for _, ctx := range op.Contexts {
-		// TODO inefficency here. we open/write/close the same file many times.
+		// TODO inefficiency here. we open/write/close the same file many times.
 		deletedName, wasActiveContext, err := deleteContext(ctx)
 		if err != nil {
 			return errors.Wrapf(err, "error deleting context \"%s\"", deletedName)
--- a/cmd/kubectx/flags.go
+++ b/cmd/kubectx/flags.go
@@ -40,9 +40,20 @@ func parseArgs(argv []string) Op {
 		return ListOp{}
 	}

+	if argv[0] == "--shell" || argv[0] == "-s" {
+		if len(argv) != 2 {
+			return UnsupportedOp{Err: fmt.Errorf("'%s' requires exactly one context name argument", argv[0])}
+		}
+		return ShellOp{Target: argv[1]}
+	}
+
 	if argv[0] == "-d" {
 		if len(argv) == 1 {
-			return UnsupportedOp{Err: fmt.Errorf("'-d' needs arguments")}
+			if cmdutil.IsInteractiveMode(os.Stdout) {
+				return InteractiveDeleteOp{SelfCmd: os.Args[0]}
+			} else {
+				return UnsupportedOp{Err: fmt.Errorf("'-d' needs arguments")}
+			}
 		}
 		return DeleteOp{Contexts: argv[1:]}
 	}
@@ -52,6 +63,9 @@ func parseArgs(argv []string) Op {
 		if v == "--help" || v == "-h" {
 			return HelpOp{}
 		}
+		if v == "--version" || v == "-V" {
+			return VersionOp{}
+		}
 		if v == "--current" || v == "-c" {
 			return CurrentOp{}
 		}
--- a/cmd/kubectx/flags_test.go
+++ b/cmd/kubectx/flags_test.go
@@ -72,6 +72,18 @@ func Test_parseArgs_new(t *testing.T) {
 		{name: "rename context with old=current",
 			args: []string{"a=."},
 			want: RenameOp{"a", "."}},
+		{name: "shell shorthand",
+			args: []string{"-s", "prod"},
+			want: ShellOp{Target: "prod"}},
+		{name: "shell long form",
+			args: []string{"--shell", "prod"},
+			want: ShellOp{Target: "prod"}},
+		{name: "shell without context name",
+			args: []string{"-s"},
+			want: UnsupportedOp{Err: fmt.Errorf("'-s' requires exactly one context name argument")}},
+		{name: "shell with too many args",
+			args: []string{"--shell", "a", "b"},
+			want: UnsupportedOp{Err: fmt.Errorf("'--shell' requires exactly one context name argument")}},
 		{name: "unrecognized flag",
 			args: []string{"-x"},
 			want: UnsupportedOp{Err: fmt.Errorf("unsupported option '-x'")}},
--- a/cmd/kubectx/fzf.go
+++ b/cmd/kubectx/fzf.go
@@ -34,7 +34,14 @@ type InteractiveSwitchOp struct {
 	SelfCmd string
 }

+type InteractiveDeleteOp struct {
+	SelfCmd string
+}
+
 func (op InteractiveSwitchOp) Run(_, stderr io.Writer) error {
+	if err := checkIsolatedMode(); err != nil {
+		return err
+	}
 	// parse kubeconfig just to see if it can be loaded
 	kc := new(kubeconfig.Kubeconfig).WithLoader(kubeconfig.DefaultLoader)
 	if err := kc.Parse(); err != nil {
@@ -71,3 +78,57 @@ func (op InteractiveSwitchOp) Run(_, stderr io.Writer) error {
 	printer.Success(stderr, "Switched to context \"%s\".", printer.SuccessColor.Sprint(name))
 	return nil
 }
+
+func (op InteractiveDeleteOp) Run(_, stderr io.Writer) error {
+	if err := checkIsolatedMode(); err != nil {
+		return err
+	}
+	// parse kubeconfig just to see if it can be loaded
+	kc := new(kubeconfig.Kubeconfig).WithLoader(kubeconfig.DefaultLoader)
+	if err := kc.Parse(); err != nil {
+		if cmdutil.IsNotFoundErr(err) {
+			printer.Warning(stderr, "kubeconfig file not found")
+			return nil
+		}
+		return errors.Wrap(err, "kubeconfig error")
+	}
+	kc.Close()
+
+	if len(kc.ContextNames()) == 0 {
+		return errors.New("no contexts found in config")
+	}
+
+	cmd := exec.Command("fzf", "--ansi", "--no-preview")
+	var out bytes.Buffer
+	cmd.Stdin = os.Stdin
+	cmd.Stderr = stderr
+	cmd.Stdout = &out
+
+	cmd.Env = append(os.Environ(),
+		fmt.Sprintf("FZF_DEFAULT_COMMAND=%s", op.SelfCmd),
+		fmt.Sprintf("%s=1", env.EnvForceColor))
+	if err := cmd.Run(); err != nil {
+		if _, ok := err.(*exec.ExitError); !ok {
+			return err
+		}
+	}
+
+	choice := strings.TrimSpace(out.String())
+	if choice == "" {
+		return errors.New("you did not choose any of the options")
+	}
+
+	name, wasActiveContext, err := deleteContext(choice)
+	if err != nil {
+		return errors.Wrap(err, "failed to delete context")
+	}
+
+	if wasActiveContext {
+		printer.Warning(stderr, "You deleted the current context. Use \"%s\" to select a new context.",
+			selfName())
+	}
+
+	printer.Success(stderr, `Deleted context %s.`, printer.SuccessColor.Sprint(name))
+
+	return nil
+}
--- a/cmd/kubectx/help.go
+++ b/cmd/kubectx/help.go
@@ -39,11 +39,13 @@ func printUsage(out io.Writer) error {
  %PROG% -c, --current         : show the current context name
  %PROG% <NEW_NAME>=<NAME>     : rename context <NAME> to <NEW_NAME>
  %PROG% <NEW_NAME>=.          : rename current-context to <NEW_NAME>
-  %PROG% -u, --unset           : unset the current context  
+  %PROG% -u, --unset           : unset the current context
  %PROG% -d <NAME> [<NAME...>] : delete context <NAME> ('.' for current-context)
  %SPAC%                         (this command won't delete the user/cluster entry
  %SPAC%                          referenced by the context entry)
-  %PROG% -h,--help             : show this message`
+  %PROG% -s, --shell <NAME>    : start a shell scoped to context <NAME>
+  %PROG% -h,--help             : show this message
+  %PROG% -V,--version          : show version`
 	help = strings.ReplaceAll(help, "%PROG%", selfName())
 	help = strings.ReplaceAll(help, "%SPAC%", strings.Repeat(" ", len(selfName())))

--- a/cmd/kubectx/isolated_shell_guard.go
+++ b/cmd/kubectx/isolated_shell_guard.go
@@ -0,0 +1,24 @@
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/ahmetb/kubectx/internal/env"
+	"github.com/ahmetb/kubectx/internal/kubeconfig"
+)
+
+func checkIsolatedMode() error {
+	if os.Getenv(env.EnvIsolatedShell) != "1" {
+		return nil
+	}
+
+	kc := new(kubeconfig.Kubeconfig).WithLoader(kubeconfig.DefaultLoader)
+	defer kc.Close()
+	if err := kc.Parse(); err != nil {
+		return fmt.Errorf("you are in a locked single-context shell, use 'exit' to leave")
+	}
+
+	cur := kc.GetCurrentContext()
+	return fmt.Errorf("you are in a locked single-context shell (\"%s\"), use 'exit' to leave", cur)
+}
--- a/cmd/kubectx/list.go
+++ b/cmd/kubectx/list.go
@@ -30,6 +30,9 @@ import (
 type ListOp struct{}

 func (_ ListOp) Run(stdout, stderr io.Writer) error {
+	if err := checkIsolatedMode(); err != nil {
+		return err
+	}
 	kc := new(kubeconfig.Kubeconfig).WithLoader(kubeconfig.DefaultLoader)
 	defer kc.Close()
 	if err := kc.Parse(); err != nil {
--- a/cmd/kubectx/rename.go
+++ b/cmd/kubectx/rename.go
@@ -48,6 +48,9 @@ func parseRenameSyntax(v string) (string, string, bool) {
 // to the "new" value. If the old refers to the current-context,
 // current-context preference is also updated.
 func (op RenameOp) Run(_, stderr io.Writer) error {
+	if err := checkIsolatedMode(); err != nil {
+		return err
+	}
 	kc := new(kubeconfig.Kubeconfig).WithLoader(kubeconfig.DefaultLoader)
 	defer kc.Close()
 	if err := kc.Parse(); err != nil {
--- a/cmd/kubectx/shell.go
+++ b/cmd/kubectx/shell.go
@@ -0,0 +1,135 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"os"
+	"os/exec"
+	"runtime"
+
+	"github.com/fatih/color"
+	"github.com/pkg/errors"
+
+	"github.com/ahmetb/kubectx/internal/env"
+	"github.com/ahmetb/kubectx/internal/kubeconfig"
+	"github.com/ahmetb/kubectx/internal/printer"
+)
+
+// ShellOp indicates intention to start a scoped sub-shell for a context.
+type ShellOp struct {
+	Target string
+}
+
+func (op ShellOp) Run(_, stderr io.Writer) error {
+	if err := checkIsolatedMode(); err != nil {
+		return err
+	}
+
+	kubectlPath, err := resolveKubectl()
+	if err != nil {
+		return err
+	}
+
+	// Verify context exists and get current context for exit message
+	kc := new(kubeconfig.Kubeconfig).WithLoader(kubeconfig.DefaultLoader)
+	defer kc.Close()
+	if err := kc.Parse(); err != nil {
+		return errors.Wrap(err, "kubeconfig error")
+	}
+	if !kc.ContextExists(op.Target) {
+		return fmt.Errorf("no context exists with the name: \"%s\"", op.Target)
+	}
+	previousCtx := kc.GetCurrentContext()
+
+	// Extract minimal kubeconfig using kubectl
+	data, err := extractMinimalKubeconfig(kubectlPath, op.Target)
+	if err != nil {
+		return errors.Wrap(err, "failed to extract kubeconfig for context")
+	}
+
+	// Write to temp file
+	tmpFile, err := os.CreateTemp("", "kubectx-shell-*.yaml")
+	if err != nil {
+		return errors.Wrap(err, "failed to create temp kubeconfig file")
+	}
+	tmpPath := tmpFile.Name()
+	defer os.Remove(tmpPath)
+
+	if _, err := tmpFile.Write(data); err != nil {
+		tmpFile.Close()
+		return errors.Wrap(err, "failed to write temp kubeconfig")
+	}
+	tmpFile.Close()
+
+	// Print entry message
+	badgeColor := color.New(color.BgRed, color.FgWhite, color.Bold)
+	printer.EnableOrDisableColor(badgeColor)
+	fmt.Fprintf(stderr, "%s kubectl context is %s in this shell — type 'exit' to leave.\n",
+		badgeColor.Sprint("[ISOLATED SHELL]"), printer.WarningColor.Sprint(op.Target))
+
+	// Detect and start shell
+	shellBin := detectShell()
+	cmd := exec.Command(shellBin)
+	cmd.Stdin = os.Stdin
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+	cmd.Env = append(os.Environ(),
+		"KUBECONFIG="+tmpPath,
+		env.EnvIsolatedShell+"=1",
+	)
+
+	_ = cmd.Run()
+
+	// Print exit message
+	fmt.Fprintf(stderr, "%s kubectl context is now %s.\n",
+		badgeColor.Sprint("[ISOLATED SHELL EXITED]"), printer.WarningColor.Sprint(previousCtx))
+
+	return nil
+}
+
+func resolveKubectl() (string, error) {
+	if v := os.Getenv("KUBECTL"); v != "" {
+		return v, nil
+	}
+	path, err := exec.LookPath("kubectl")
+	if err != nil {
+		return "", fmt.Errorf("kubectl is required for --shell but was not found in PATH")
+	}
+	return path, nil
+}
+
+func extractMinimalKubeconfig(kubectlPath, contextName string) ([]byte, error) {
+	cmd := exec.Command(kubectlPath, "config", "view", "--minify", "--flatten",
+		"--context", contextName)
+	cmd.Env = os.Environ()
+	data, err := cmd.Output()
+	if err != nil {
+		return nil, fmt.Errorf("kubectl config view failed: %w", err)
+	}
+	return data, nil
+}
+
+func detectShell() string {
+	if runtime.GOOS == "windows" {
+		// cmd.exe always sets the PROMPT env var, so if it is present
+		// we can reliably assume we are running inside cmd.exe.
+		if os.Getenv("PROMPT") != "" {
+			return "cmd.exe"
+		}
+		// Otherwise assume PowerShell. PSModulePath is always set on
+		// Windows regardless of the shell, so it cannot be used as a
+		// discriminator; however the absence of PROMPT is a strong
+		// enough signal that we are in a PowerShell session.
+		if pwsh, err := exec.LookPath("pwsh"); err == nil {
+			return pwsh
+		}
+		if powershell, err := exec.LookPath("powershell"); err == nil {
+			return powershell
+		}
+		return "cmd.exe"
+	}
+	if v := os.Getenv("SHELL"); v != "" {
+		return v
+	}
+	return "/bin/sh"
+}
--- a/cmd/kubectx/shell_test.go
+++ b/cmd/kubectx/shell_test.go
@@ -0,0 +1,131 @@
+package main
+
+import (
+	"bytes"
+	"os"
+	"runtime"
+	"testing"
+
+	"github.com/ahmetb/kubectx/internal/env"
+)
+
+func Test_detectShell_unix(t *testing.T) {
+	if runtime.GOOS == "windows" {
+		t.Skip("skipping unix shell detection test on windows")
+	}
+
+	tests := []struct {
+		name     string
+		shellEnv string
+		want     string
+	}{
+		{
+			name:     "SHELL env set",
+			shellEnv: "/bin/zsh",
+			want:     "/bin/zsh",
+		},
+		{
+			name:     "SHELL env empty, falls back to /bin/sh",
+			shellEnv: "",
+			want:     "/bin/sh",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			orig := os.Getenv("SHELL")
+			defer os.Setenv("SHELL", orig)
+
+			os.Setenv("SHELL", tt.shellEnv)
+			if tt.shellEnv == "" {
+				os.Unsetenv("SHELL")
+			}
+
+			got := detectShell()
+			if got != tt.want {
+				t.Errorf("detectShell() = %q, want %q", got, tt.want)
+			}
+		})
+	}
+}
+
+func Test_ShellOp_blockedWhenNested(t *testing.T) {
+	// Simulate being inside an isolated shell
+	orig := os.Getenv(env.EnvIsolatedShell)
+	defer os.Setenv(env.EnvIsolatedShell, orig)
+	os.Setenv(env.EnvIsolatedShell, "1")
+
+	op := ShellOp{Target: "some-context"}
+	var stdout, stderr bytes.Buffer
+	err := op.Run(&stdout, &stderr)
+
+	if err == nil {
+		t.Fatal("expected error when running ShellOp inside isolated shell, got nil")
+	}
+
+	want := "locked single-context shell to"
+	if !bytes.Contains([]byte(err.Error()), []byte(want)) {
+		// The error may not contain the context name if kubeconfig is not available,
+		// but it should still be blocked
+		want2 := "locked single-context shell"
+		if !bytes.Contains([]byte(err.Error()), []byte(want2)) {
+			t.Errorf("error message %q does not contain %q", err.Error(), want2)
+		}
+	}
+}
+
+func Test_resolveKubectl_envVar(t *testing.T) {
+	orig := os.Getenv("KUBECTL")
+	defer os.Setenv("KUBECTL", orig)
+
+	os.Setenv("KUBECTL", "/custom/path/kubectl")
+	got, err := resolveKubectl()
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if got != "/custom/path/kubectl" {
+		t.Errorf("resolveKubectl() = %q, want %q", got, "/custom/path/kubectl")
+	}
+}
+
+func Test_resolveKubectl_inPath(t *testing.T) {
+	orig := os.Getenv("KUBECTL")
+	defer os.Setenv("KUBECTL", orig)
+	os.Unsetenv("KUBECTL")
+
+	// kubectl should be findable in PATH on most dev machines
+	got, err := resolveKubectl()
+	if err != nil {
+		t.Skip("kubectl not in PATH, skipping")
+	}
+	if got == "" {
+		t.Error("resolveKubectl() returned empty string")
+	}
+}
+
+func Test_checkIsolatedMode_notSet(t *testing.T) {
+	orig := os.Getenv(env.EnvIsolatedShell)
+	defer os.Setenv(env.EnvIsolatedShell, orig)
+	os.Unsetenv(env.EnvIsolatedShell)
+
+	err := checkIsolatedMode()
+	if err != nil {
+		t.Errorf("expected nil error when not in isolated mode, got: %v", err)
+	}
+}
+
+func Test_checkIsolatedMode_set(t *testing.T) {
+	orig := os.Getenv(env.EnvIsolatedShell)
+	defer os.Setenv(env.EnvIsolatedShell, orig)
+	os.Setenv(env.EnvIsolatedShell, "1")
+
+	err := checkIsolatedMode()
+	if err == nil {
+		t.Fatal("expected error when in isolated mode, got nil")
+	}
+
+	want := "locked single-context shell"
+	if !bytes.Contains([]byte(err.Error()), []byte(want)) {
+		t.Errorf("error message %q does not contain %q", err.Error(), want)
+	}
+}
--- a/cmd/kubectx/switch.go
+++ b/cmd/kubectx/switch.go
@@ -29,6 +29,9 @@ type SwitchOp struct {
 }

 func (op SwitchOp) Run(_, stderr io.Writer) error {
+	if err := checkIsolatedMode(); err != nil {
+		return err
+	}
 	var newCtx string
 	var err error
 	if op.Target == "-" {
--- a/cmd/kubectx/unset.go
+++ b/cmd/kubectx/unset.go
@@ -27,6 +27,9 @@ import (
 type UnsetOp struct{}

 func (_ UnsetOp) Run(_, stderr io.Writer) error {
+	if err := checkIsolatedMode(); err != nil {
+		return err
+	}
 	kc := new(kubeconfig.Kubeconfig).WithLoader(kubeconfig.DefaultLoader)
 	defer kc.Close()
 	if err := kc.Parse(); err != nil {
--- a/cmd/kubectx/version.go
+++ b/cmd/kubectx/version.go
@@ -0,0 +1,20 @@
+package main
+
+import (
+	"fmt"
+	"io"
+
+	"github.com/pkg/errors"
+)
+
+var (
+	version = "v0.0.0+unknown" // populated by goreleaser
+)
+
+// VersionOp describes printing version string.
+type VersionOp struct{}
+
+func (_ VersionOp) Run(stdout, _ io.Writer) error {
+	_, err := fmt.Fprintf(stdout, "%s\n", version)
+	return errors.Wrap(err, "write error")
+}
--- a/cmd/kubens/flags.go
+++ b/cmd/kubens/flags.go
@@ -18,6 +18,7 @@ import (
 	"fmt"
 	"io"
 	"os"
+	"slices"
 	"strings"

 	"github.com/ahmetb/kubectx/internal/cmdutil"
@@ -33,25 +34,51 @@ func (op UnsupportedOp) Run(_, _ io.Writer) error {
 // parseArgs looks at flags (excl. executable name, i.e. argv[0])
 // and decides which operation should be taken.
 func parseArgs(argv []string) Op {
-	if len(argv) == 0 {
+	n := len(argv)
+
+	if n == 0 {
 		if cmdutil.IsInteractiveMode(os.Stdout) {
 			return InteractiveSwitchOp{SelfCmd: os.Args[0]}
 		}
 		return ListOp{}
 	}

-	if len(argv) == 1 {
+	if n == 1 {
 		v := argv[0]
-		if v == "--help" || v == "-h" {
+		switch v {
+		case "--help", "-h":
 			return HelpOp{}
-		}
-		if v == "--current" || v == "-c" {
+		case "--version", "-V":
+			return VersionOp{}
+		case "--current", "-c":
 			return CurrentOp{}
+		default:
+			return getSwitchOp(v, false)
 		}
-		if strings.HasPrefix(v, "-") && v != "-" {
-			return UnsupportedOp{Err: fmt.Errorf("unsupported option '%s'", v)}
+	} else if n == 2 {
+		// {namespace} -f|--force
+		name := argv[0]
+		force := slices.Contains([]string{"-f", "--force"}, argv[1])
+
+		if !force {
+			if !slices.Contains([]string{"-f", "--force"}, argv[0]) {
+				return UnsupportedOp{Err: fmt.Errorf("unsupported arguments %q", argv)}
+			}
+
+			// -f|--force {namespace}
+			force = true
+			name = argv[1]
 		}
-		return SwitchOp{Target: argv[0]}
+
+		return getSwitchOp(name, force)
 	}
+
 	return UnsupportedOp{Err: fmt.Errorf("too many arguments")}
 }
+
+func getSwitchOp(v string, force bool) Op {
+	if strings.HasPrefix(v, "-") && v != "-" {
+		return UnsupportedOp{Err: fmt.Errorf("unsupported option %q", v)}
+	}
+	return SwitchOp{Target: v, Force: force}
+}
--- a/cmd/kubens/flags_test.go
+++ b/cmd/kubens/flags_test.go
@@ -48,12 +48,30 @@ func Test_parseArgs_new(t *testing.T) {
 		{name: "switch by name",
 			args: []string{"foo"},
 			want: SwitchOp{Target: "foo"}},
+		{name: "switch by name force short flag",
+			args: []string{"foo", "-f"},
+			want: SwitchOp{Target: "foo", Force: true}},
+		{name: "switch by name force long flag",
+			args: []string{"foo", "--force"},
+			want: SwitchOp{Target: "foo", Force: true}},
+		{name: "switch by name force short flag before name",
+			args: []string{"-f", "foo"},
+			want: SwitchOp{Target: "foo", Force: true}},
+		{name: "switch by name force long flag before name",
+			args: []string{"--force", "foo"},
+			want: SwitchOp{Target: "foo", Force: true}},
+		{name: "switch by name unknown arguments",
+			args: []string{"foo", "-x"},
+			want: UnsupportedOp{Err: fmt.Errorf("unsupported arguments %q", []string{"foo", "-x"})}},
+		{name: "switch by name unknown arguments",
+			args: []string{"-x", "foo"},
+			want: UnsupportedOp{Err: fmt.Errorf("unsupported arguments %q", []string{"-x", "foo"})}},
 		{name: "switch by swap",
 			args: []string{"-"},
 			want: SwitchOp{Target: "-"}},
 		{name: "unrecognized flag",
 			args: []string{"-x"},
-			want: UnsupportedOp{Err: fmt.Errorf("unsupported option '-x'")}},
+			want: UnsupportedOp{Err: fmt.Errorf("unsupported option %q", "-x")}},
 		{name: "too many args",
 			args: []string{"a", "b", "c"},
 			want: UnsupportedOp{Err: fmt.Errorf("too many arguments")}},
--- a/cmd/kubens/fzf.go
+++ b/cmd/kubens/fzf.go
@@ -65,7 +65,7 @@ func (op InteractiveSwitchOp) Run(_, stderr io.Writer) error {
 	if choice == "" {
 		return errors.New("you did not choose any of the options")
 	}
-	name, err := switchNamespace(kc, choice)
+	name, err := switchNamespace(kc, choice, false)
 	if err != nil {
 		return errors.Wrap(err, "failed to switch namespace")
 	}
--- a/cmd/kubens/help.go
+++ b/cmd/kubens/help.go
@@ -35,10 +35,12 @@ func printUsage(out io.Writer) error {
 	help := `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% -V,--version       : show version`
+
 	// TODO this replace logic is duplicated between this and kubectx
 	help = strings.ReplaceAll(help, "%PROG%", selfName())

--- a/cmd/kubens/switch.go
+++ b/cmd/kubens/switch.go
@@ -29,6 +29,7 @@ import (

 type SwitchOp struct {
 	Target string // '-' for back and forth, or NAME
+	Force  bool   // force switch even if the namespace doesn't exist
 }

 func (s SwitchOp) Run(_, stderr io.Writer) error {
@@ -38,7 +39,7 @@ func (s SwitchOp) Run(_, stderr io.Writer) error {
 		return errors.Wrap(err, "kubeconfig error")
 	}

-	toNS, err := switchNamespace(kc, s.Target)
+	toNS, err := switchNamespace(kc, s.Target, s.Force)
 	if err != nil {
 		return err
 	}
@@ -46,7 +47,7 @@ func (s SwitchOp) Run(_, stderr io.Writer) error {
 	return err
 }

-func switchNamespace(kc *kubeconfig.Kubeconfig, ns string) (string, error) {
+func switchNamespace(kc *kubeconfig.Kubeconfig, ns string, force bool) (string, error) {
 	ctx := kc.GetCurrentContext()
 	if ctx == "" {
 		return "", errors.New("current-context is not set")
@@ -69,12 +70,14 @@ func switchNamespace(kc *kubeconfig.Kubeconfig, ns string) (string, error) {
 		ns = prev
 	}

-	ok, err := namespaceExists(kc, ns)
-	if err != nil {
-		return "", errors.Wrap(err, "failed to query if namespace exists (is cluster accessible?)")
-	}
-	if !ok {
-		return "", errors.Errorf("no namespace exists with name \"%s\"", ns)
+	if !force {
+		ok, err := namespaceExists(kc, ns)
+		if err != nil {
+			return "", errors.Wrap(err, "failed to query if namespace exists (is cluster accessible?)")
+		}
+		if !ok {
+			return "", errors.Errorf("no namespace exists with name \"%s\"", ns)
+		}
 	}

 	if err := kc.SetNamespace(ctx, ns); err != nil {
--- a/cmd/kubens/version.go
+++ b/cmd/kubens/version.go
@@ -0,0 +1,20 @@
+package main
+
+import (
+	"fmt"
+	"io"
+
+	"github.com/pkg/errors"
+)
+
+var (
+	version = "v0.0.0+unknown" // populated by goreleaser
+)
+
+// VersionOp describes printing version string.
+type VersionOp struct{}
+
+func (_ VersionOp) Run(stdout, _ io.Writer) error {
+	_, err := fmt.Fprintf(stdout, "%s\n", version)
+	return errors.Wrap(err, "write error")
+}
--- a/completion/_kubectx.zsh
+++ b/completion/_kubectx.zsh
@@ -3,7 +3,9 @@
 local KUBECTX="${HOME}/.kube/kubectx"
 PREV=""

-local all_contexts="$(kubectl config get-contexts --output='name')"
+local context_array=("${(@f)$(kubectl config get-contexts --output='name')}")
+local all_contexts=(\'${^context_array}\')
+
 if [ -f "$KUBECTX" ]; then
    # show '-' only if there's a saved previous context
    local PREV=$(cat "${KUBECTX}")
--- a/completion/_kubens.zsh
+++ b/completion/_kubens.zsh
--- a/go.mod
+++ b/go.mod
@@ -1,15 +1,56 @@
 module github.com/ahmetb/kubectx

-go 1.14
+go 1.20

 require (
 	facette.io/natsort v0.0.0-20181210072756-2cd4dd1e2dcb
 	github.com/fatih/color v1.9.0
-	github.com/google/go-cmp v0.5.2
-	github.com/imdario/mergo v0.3.9 // indirect
-	github.com/mattn/go-isatty v0.0.12
+	github.com/google/go-cmp v0.5.9
+	github.com/mattn/go-isatty v0.0.14
 	github.com/pkg/errors v0.9.1
-	gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c
-	k8s.io/apimachinery v0.21.0-alpha.1
-	k8s.io/client-go v0.21.0-alpha.1
+	k8s.io/apimachinery v0.28.5
+	k8s.io/client-go v0.28.5
+	sigs.k8s.io/kustomize/kyaml v0.16.0
+)
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/emicklei/go-restful/v3 v3.9.0 // indirect
+	github.com/go-errors/errors v1.4.2 // indirect
+	github.com/go-logr/logr v1.2.4 // indirect
+	github.com/go-openapi/jsonpointer v0.19.6 // indirect
+	github.com/go-openapi/jsonreference v0.20.2 // indirect
+	github.com/go-openapi/swag v0.22.3 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang/protobuf v1.5.3 // indirect
+	github.com/google/gnostic-models v0.6.8 // indirect
+	github.com/google/gofuzz v1.2.0 // indirect
+	github.com/google/uuid v1.3.0 // indirect
+	github.com/imdario/mergo v0.3.9 // indirect
+	github.com/josharian/intern v1.0.0 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/mailru/easyjson v0.7.7 // indirect
+	github.com/mattn/go-colorable v0.1.4 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+	golang.org/x/net v0.17.0 // indirect
+	golang.org/x/oauth2 v0.8.0 // indirect
+	golang.org/x/sys v0.13.0 // indirect
+	golang.org/x/term v0.13.0 // indirect
+	golang.org/x/text v0.13.0 // indirect
+	golang.org/x/time v0.3.0 // indirect
+	google.golang.org/appengine v1.6.7 // indirect
+	google.golang.org/protobuf v1.31.0 // indirect
+	gopkg.in/inf.v0 v0.9.1 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+	k8s.io/api v0.28.5 // indirect
+	k8s.io/klog/v2 v2.100.1 // indirect
+	k8s.io/kube-openapi v0.0.0-20230717233707-2695361300d9 // indirect
+	k8s.io/utils v0.0.0-20230505201702-9f6742963106 // indirect
+	sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd // indirect
+	sigs.k8s.io/structured-merge-diff/v4 v4.2.3 // indirect
+	sigs.k8s.io/yaml v1.4.0 // indirect
 )
--- a/go.sum
+++ b/go.sum
@@ -1,438 +1,167 @@
-cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
-cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
-cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
-cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
-cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
-cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To=
-cloud.google.com/go v0.52.0/go.mod h1:pXajvRH/6o3+F9jDHZWQ5PbGhn+o8w9qiu/CffaVdO4=
-cloud.google.com/go v0.53.0/go.mod h1:fp/UouUEsRkN6ryDKNW/Upv/JBKnv6WDthjR6+vze6M=
-cloud.google.com/go v0.54.0 h1:3ithwDMr7/3vpAMXiH+ZQnYbuIsh+OPhUPMFC9enmn0=
-cloud.google.com/go v0.54.0/go.mod h1:1rq2OEkV3YMf6n/9ZvGWI3GWw0VoqH/1x2nd8Is/bPc=
-cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
-cloud.google.com/go/bigquery v1.3.0/go.mod h1:PjpwJnslEMmckchkHFfq+HTD2DmtT67aNFKH1/VBDHE=
-cloud.google.com/go/bigquery v1.4.0/go.mod h1:S8dzgnTigyfTmLBfrtrhyYhwRxG72rYxvftPBK2Dvzc=
-cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
-cloud.google.com/go/datastore v1.1.0/go.mod h1:umbIZjpQpHh4hmRpGhH4tLFup+FVzqBi1b3c64qFpCk=
-cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
-cloud.google.com/go/pubsub v1.1.0/go.mod h1:EwwdRX2sKPjnvnqCa270oGRyludottCI76h+R3AArQw=
-cloud.google.com/go/pubsub v1.2.0/go.mod h1:jhfEVHT8odbXTkndysNHCcx0awwzvfOlguIAii9o8iA=
-cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
-cloud.google.com/go/storage v1.5.0/go.mod h1:tpKbwo567HUNpVclU5sGELwQWBDZ8gh0ZeosJ0Rtdos=
-cloud.google.com/go/storage v1.6.0/go.mod h1:N7U0C8pVQ/+NIKOBQyamJIeKQKkZ+mxpohlUTyfDhBk=
-dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
 facette.io/natsort v0.0.0-20181210072756-2cd4dd1e2dcb h1:1pSweJFeR3Pqx7uoelppkzeegfUBXL6I2FFAbfXw570=
 facette.io/natsort v0.0.0-20181210072756-2cd4dd1e2dcb/go.mod h1:npRYmtaITVom7rcSo+pRURltHSG2r4TQM1cdqJ2dUB0=
-github.com/Azure/go-autorest v14.2.0+incompatible h1:V5VMDjClD3GiElqLWO7mz2MxNAK/vTfRHdAubSIPRgs=
-github.com/Azure/go-autorest v14.2.0+incompatible/go.mod h1:r+4oMnoxhatjLLJ6zxSWATqVooLgysK6ZNox3g/xq24=
-github.com/Azure/go-autorest/autorest v0.11.12 h1:gI8ytXbxMfI+IVbI9mP2JGCTXIuhHLgRlvQ9X4PsnHE=
-github.com/Azure/go-autorest/autorest v0.11.12/go.mod h1:eipySxLmqSyC5s5k1CLupqet0PSENBEDP93LQ9a8QYw=
-github.com/Azure/go-autorest/autorest/adal v0.9.5 h1:Y3bBUV4rTuxenJJs41HU3qmqsb+auo+a3Lz+PlJPpL0=
-github.com/Azure/go-autorest/autorest/adal v0.9.5/go.mod h1:B7KF7jKIeC9Mct5spmyCB/A8CG/sEz1vwIRGv/bbw7A=
-github.com/Azure/go-autorest/autorest/date v0.3.0 h1:7gUk1U5M/CQbp9WoqinNzJar+8KY+LPI6wiWrP/myHw=
-github.com/Azure/go-autorest/autorest/date v0.3.0/go.mod h1:BI0uouVdmngYNUzGWeSYnokU+TrmwEsOqdt8Y6sso74=
-github.com/Azure/go-autorest/autorest/mocks v0.4.1 h1:K0laFcLE6VLTOwNgSxaGbUcLPuGXlNkbVvq4cW4nIHk=
-github.com/Azure/go-autorest/autorest/mocks v0.4.1/go.mod h1:LTp+uSrOhSkaKrUy935gNZuuIPPVsHlr9DSOxSayd+k=
-github.com/Azure/go-autorest/logger v0.2.0 h1:e4RVHVZKC5p6UANLJHkM4OfR1UKZPj8Wt8Pcx+3oqrE=
-github.com/Azure/go-autorest/logger v0.2.0/go.mod h1:T9E3cAhj2VqvPOtCYAvby9aBXkZmbF5NWuPV8+WeEW8=
-github.com/Azure/go-autorest/tracing v0.6.0 h1:TYi4+3m5t6K48TGI9AUdb+IzbnSxvnvUMfuitfgcfuo=
-github.com/Azure/go-autorest/tracing v0.6.0/go.mod h1:+vhtPC754Xsa23ID7GlGsrdKBpUA79WCAKPPZVC2DeU=
-github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
-github.com/NYTimes/gziphandler v0.0.0-20170623195520-56545f4a5d46/go.mod h1:3wb06e3pkSAbeQ52E9H9iFoQsEEwGN64994WTCIhntQ=
-github.com/PuerkitoBio/purell v1.1.1/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
-github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE=
-github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a/go.mod h1:lB+ZfQJz7igIIfQNfa7Ml4HSf2uFQQRzpGGRXenZAgY=
-github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
-github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
-github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
-github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
-github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
+github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/docker/spdystream v0.0.0-20160310174837-449fdfce4d96/go.mod h1:Qh8CwZgvJUkLughtfhJv5dyTYa91l1fOUCrgjqmcifM=
-github.com/docopt/docopt-go v0.0.0-20180111231733-ee0de3bc6815/go.mod h1:WwZ+bS3ebgob9U8Nd0kOddGdZWjyMGR8Wziv+TBNwSE=
-github.com/elazarl/goproxy v0.0.0-20180725130230-947c36da3153/go.mod h1:/Zj4wYkgs4iZTTu3o/KG3Itv/qCCa8VVMlb3i9OVuzc=
-github.com/emicklei/go-restful v0.0.0-20170410110728-ff4f55a20633/go.mod h1:otzb+WCGbkyDHkqmQmT5YD2WR4BBwUdeQoFo8l/7tVs=
-github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
-github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
-github.com/evanphx/json-patch v4.9.0+incompatible/go.mod h1:50XU6AFN0ol/bzJsmQLiYLvXMP4fmwYFNcr97nuDLSk=
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+github.com/emicklei/go-restful/v3 v3.9.0/go.mod h1:6n3XBCmQQb25CM2LCACGz8ukIrRry+4bhvbpWn3mrbc=
 github.com/fatih/color v1.9.0 h1:8xPHl4/q1VyqGIPif1F+1V3Y3lSmrq01EabUW3CoW5s=
 github.com/fatih/color v1.9.0/go.mod h1:eQcE1qtQxscV5RaZvpXrrb8Drkc3/DdQ+uUYCNjL+zU=
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--- a/internal/cmdutil/util.go
+++ b/internal/cmdutil/util.go
@@ -21,9 +21,6 @@ import (
 )

 func HomeDir() string {
-	if v := os.Getenv("XDG_CACHE_HOME"); v != "" {
-		return v
-	}
 	home := os.Getenv("HOME")
 	if home == "" {
 		home = os.Getenv("USERPROFILE") // windows
--- a/internal/cmdutil/util_test.go
+++ b/internal/cmdutil/util_test.go
@@ -28,12 +28,12 @@ func Test_homeDir(t *testing.T) {
 		want string
 	}{
 		{
-			name: "XDG_CACHE_HOME precedence",
+			name: "don't use XDG_CACHE_HOME as homedir",
 			envs: []env{
 				{"XDG_CACHE_HOME", "xdg"},
 				{"HOME", "home"},
 			},
-			want: "xdg",
+			want: "home",
 		},
 		{
 			name: "HOME over USERPROFILE",
@@ -46,7 +46,6 @@ func Test_homeDir(t *testing.T) {
 		{
 			name: "only USERPROFILE available",
 			envs: []env{
-				{"XDG_CACHE_HOME", ""},
 				{"HOME", ""},
 				{"USERPROFILE", "up"},
 			},
@@ -55,7 +54,6 @@ func Test_homeDir(t *testing.T) {
 		{
 			name: "none available",
 			envs: []env{
-				{"XDG_CACHE_HOME", ""},
 				{"HOME", ""},
 				{"USERPROFILE", ""},
 			},
--- a/internal/env/constants.go
+++ b/internal/env/constants.go
@@ -19,7 +19,7 @@ const (
 	// interactive context selection when fzf is installed.
 	EnvFZFIgnore = "KUBECTX_IGNORE_FZF"

-	// EnvForceColor describes the environment variable to disable color usage
+	// EnvNoColor describes the environment variable to disable color usage
 	// when printing current context in a list.
 	EnvNoColor = `NO_COLOR`

@@ -29,4 +29,6 @@ const (

 	// EnvDebug describes the internal environment variable for more verbose logging.
 	EnvDebug = `DEBUG`
+
+	EnvIsolatedShell = "KUBECTX_ISOLATED_SHELL"
 )
--- a/internal/kubeconfig/contextmodify.go
+++ b/internal/kubeconfig/contextmodify.go
@@ -15,8 +15,9 @@
 package kubeconfig

 import (
-	"github.com/pkg/errors"
-	"gopkg.in/yaml.v3"
+	"errors"
+
+	"sigs.k8s.io/kustomize/kyaml/yaml"
 )

 func (k *Kubeconfig) DeleteContextEntry(deleteName string) error {
@@ -24,60 +25,34 @@ func (k *Kubeconfig) DeleteContextEntry(deleteName string) error {
 	if err != nil {
 		return err
 	}
-
-	i := -1
-	for j, ctxNode := range contexts.Content {
-		nameNode := valueOf(ctxNode, "name")
-		if nameNode != nil && nameNode.Kind == yaml.ScalarNode && nameNode.Value == deleteName {
-			i = j
-			break
-		}
-	}
-	if i >= 0 {
-		copy(contexts.Content[i:], contexts.Content[i+1:])
-		contexts.Content[len(contexts.Content)-1] = nil
-		contexts.Content = contexts.Content[:len(contexts.Content)-1]
+	if err := contexts.PipeE(
+		yaml.ElementSetter{
+			Keys:   []string{"name"},
+			Values: []string{deleteName},
+		},
+	); err != nil {
+		return err
 	}
 	return nil
 }

 func (k *Kubeconfig) ModifyCurrentContext(name string) error {
-	currentCtxNode := valueOf(k.rootNode, "current-context")
-	if currentCtxNode != nil {
-		currentCtxNode.Value = name
-		return nil
+	if err := k.config.PipeE(yaml.SetField("current-context", yaml.NewScalarRNode(name))); err != nil {
+		return err
 	}
-
-	// if current-context field doesn't exist, create new field
-	keyNode := &yaml.Node{
-		Kind:  yaml.ScalarNode,
-		Value: "current-context",
-		Tag:   "!!str"}
-	valueNode := &yaml.Node{
-		Kind:  yaml.ScalarNode,
-		Value: name,
-		Tag:   "!!str"}
-	k.rootNode.Content = append(k.rootNode.Content, keyNode, valueNode)
 	return nil
 }

 func (k *Kubeconfig) ModifyContextName(old, new string) error {
-	contexts, err := k.contextsNode()
+	context, err := k.config.Pipe(yaml.Lookup("contexts", "[name="+old+"]"))
 	if err != nil {
 		return err
 	}
-
-	var changed bool
-	for _, contextNode := range contexts.Content {
-		nameNode := valueOf(contextNode, "name")
-		if nameNode.Kind == yaml.ScalarNode && nameNode.Value == old {
-			nameNode.Value = new
-			changed = true
-			break
-		}
+	if context == nil {
+		return errors.New("\"contexts\" entry is nil")
 	}
-	if !changed {
-		return errors.New("no changes were made")
+	if err := context.PipeE(yaml.SetField("name", yaml.NewScalarRNode(new))); err != nil {
+		return err
 	}
 	return nil
 }
--- a/internal/kubeconfig/contexts.go
+++ b/internal/kubeconfig/contexts.go
@@ -16,51 +16,47 @@ package kubeconfig

 import (
 	"github.com/pkg/errors"
-	"gopkg.in/yaml.v3"
+	"sigs.k8s.io/kustomize/kyaml/yaml"
 )

-func (k *Kubeconfig) contextsNode() (*yaml.Node, error) {
-	contexts := valueOf(k.rootNode, "contexts")
+func (k *Kubeconfig) contextsNode() (*yaml.RNode, error) {
+	contexts, err := k.config.Pipe(yaml.Get("contexts"))
+	if err != nil {
+		return nil, err
+	}
 	if contexts == nil {
 		return nil, errors.New("\"contexts\" entry is nil")
-	} else if contexts.Kind != yaml.SequenceNode {
+	} else if contexts.YNode().Kind != yaml.SequenceNode {
 		return nil, errors.New("\"contexts\" is not a sequence node")
 	}
 	return contexts, nil
 }

-func (k *Kubeconfig) contextNode(name string) (*yaml.Node, error) {
+func (k *Kubeconfig) contextNode(name string) (*yaml.RNode, error) {
 	contexts, err := k.contextsNode()
 	if err != nil {
 		return nil, err
 	}
-
-	for _, contextNode := range contexts.Content {
-		nameNode := valueOf(contextNode, "name")
-		if nameNode.Kind == yaml.ScalarNode && nameNode.Value == name {
-			return contextNode, nil
-		}
+	context, err := contexts.Pipe(yaml.Lookup("[name=" + name + "]"))
+	if err != nil {
+		return nil, err
 	}
-	return nil, errors.Errorf("context with name \"%s\" not found", name)
+	if context == nil {
+		return nil, errors.Errorf("context with name \"%s\" not found", name)
+	}
+	return context, nil
 }

 func (k *Kubeconfig) ContextNames() []string {
-	contexts := valueOf(k.rootNode, "contexts")
-	if contexts == nil {
+	contexts, err := k.config.Pipe(yaml.Get("contexts"))
+	if err != nil {
 		return nil
 	}
-	if contexts.Kind != yaml.SequenceNode {
+	names, err := contexts.ElementValues("name")
+	if err != nil {
 		return nil
 	}
-
-	var ctxNames []string
-	for _, ctx := range contexts.Content {
-		nameVal := valueOf(ctx, "name")
-		if nameVal != nil {
-			ctxNames = append(ctxNames, nameVal.Value)
-		}
-	}
-	return ctxNames
+	return names
 }

 func (k *Kubeconfig) ContextExists(name string) bool {
@@ -72,15 +68,3 @@ func (k *Kubeconfig) ContextExists(name string) bool {
 	}
 	return false
 }
-
-func valueOf(mapNode *yaml.Node, key string) *yaml.Node {
-	if mapNode.Kind != yaml.MappingNode {
-		return nil
-	}
-	for i, ch := range mapNode.Content {
-		if i%2 == 0 && ch.Kind == yaml.ScalarNode && ch.Value == key {
-			return mapNode.Content[i+1]
-		}
-	}
-	return nil
-}
--- a/internal/kubeconfig/currentcontext.go
+++ b/internal/kubeconfig/currentcontext.go
@@ -14,18 +14,20 @@

 package kubeconfig

+import (
+	"sigs.k8s.io/kustomize/kyaml/yaml"
+)
+
 // GetCurrentContext returns "current-context" value in given
 // kubeconfig object Node, or returns "" if not found.
 func (k *Kubeconfig) GetCurrentContext() string {
-	v := valueOf(k.rootNode, "current-context")
-	if v == nil {
+	v, err := k.config.Pipe(yaml.Get("current-context"))
+	if err != nil {
 		return ""
 	}
-	return v.Value
+	return yaml.GetValue(v)
 }

 func (k *Kubeconfig) UnsetCurrentContext() error {
-	curCtxValNode := valueOf(k.rootNode, "current-context")
-	curCtxValNode.Value = ""
-	return nil
+	return k.config.PipeE(yaml.SetField("current-context", yaml.NewStringRNode("")))
 }
--- a/internal/kubeconfig/kubeconfig.go
+++ b/internal/kubeconfig/kubeconfig.go
@@ -18,7 +18,7 @@ import (
 	"io"

 	"github.com/pkg/errors"
-	"gopkg.in/yaml.v3"
+	"sigs.k8s.io/kustomize/kyaml/yaml"
 )

 type ReadWriteResetCloser interface {
@@ -35,8 +35,8 @@ type Loader interface {
 type Kubeconfig struct {
 	loader Loader

-	f        ReadWriteResetCloser
-	rootNode *yaml.Node
+	f      ReadWriteResetCloser
+	config *yaml.RNode
 }

 func (k *Kubeconfig) WithLoader(l Loader) *Kubeconfig {
@@ -65,15 +65,19 @@ func (k *Kubeconfig) Parse() error {
 	if err := yaml.NewDecoder(f).Decode(&v); err != nil {
 		return errors.Wrap(err, "failed to decode")
 	}
-	k.rootNode = v.Content[0]
-	if k.rootNode.Kind != yaml.MappingNode {
+	k.config = yaml.NewRNode(&v)
+	if k.config.YNode().Kind != yaml.MappingNode {
 		return errors.New("kubeconfig file is not a map document")
 	}
 	return nil
 }

 func (k *Kubeconfig) Bytes() ([]byte, error) {
-	return yaml.Marshal(k.rootNode)
+	str, err := k.config.String()
+	if err != nil {
+		return nil, err
+	}
+	return []byte(str), nil
 }

 func (k *Kubeconfig) Save() error {
@@ -82,5 +86,5 @@ func (k *Kubeconfig) Save() error {
 	}
 	enc := yaml.NewEncoder(k.f)
 	enc.SetIndent(0)
-	return enc.Encode(k.rootNode)
+	return enc.Encode(k.config.YNode())
 }
--- a/internal/kubeconfig/namespace.go
+++ b/internal/kubeconfig/namespace.go
@@ -14,7 +14,9 @@

 package kubeconfig

-import "gopkg.in/yaml.v3"
+import (
+	"sigs.k8s.io/kustomize/kyaml/yaml"
+)

 const (
 	defaultNamespace = "default"
@@ -25,53 +27,23 @@ func (k *Kubeconfig) NamespaceOfContext(contextName string) (string, error) {
 	if err != nil {
 		return "", err
 	}
-	ctxBody := valueOf(ctx, "context")
-	if ctxBody == nil {
-		return defaultNamespace, nil
+	namespace, err := ctx.Pipe(yaml.Lookup("context", "namespace"))
+	if namespace == nil || err != nil {
+		return defaultNamespace, err
 	}
-	ns := valueOf(ctxBody, "namespace")
-	if ns == nil || ns.Value == "" {
-		return defaultNamespace, nil
-	}
-	return ns.Value, nil
+	return yaml.GetValue(namespace), nil
 }

 func (k *Kubeconfig) SetNamespace(ctxName string, ns string) error {
-	ctxNode, err := k.contextNode(ctxName)
+	ctx, err := k.contextNode(ctxName)
 	if err != nil {
 		return err
 	}
-
-	var ctxBodyNodeWasEmpty bool // actual namespace value is in contexts[index].context.namespace, but .context might not exist
-	ctxBodyNode := valueOf(ctxNode, "context")
-	if ctxBodyNode == nil {
-		ctxBodyNodeWasEmpty = true
-		ctxBodyNode = &yaml.Node{
-			Kind: yaml.MappingNode,
-		}
-	}
-
-	nsNode := valueOf(ctxBodyNode, "namespace")
-	if nsNode != nil {
-		nsNode.Value = ns
-		return nil
-	}
-
-	keyNode := &yaml.Node{
-		Kind:  yaml.ScalarNode,
-		Value: "namespace",
-		Tag:   "!!str"}
-	valueNode := &yaml.Node{
-		Kind:  yaml.ScalarNode,
-		Value: ns,
-		Tag:   "!!str"}
-	ctxBodyNode.Content = append(ctxBodyNode.Content, keyNode, valueNode)
-	if ctxBodyNodeWasEmpty {
-		ctxNode.Content = append(ctxNode.Content, &yaml.Node{
-			Kind:  yaml.ScalarNode,
-			Value: "context",
-			Tag:   "!!str",
-		}, ctxBodyNode)
+	if err := ctx.PipeE(
+		yaml.LookupCreate(yaml.MappingNode, "context"),
+		yaml.SetField("namespace", yaml.NewStringRNode(ns)),
+	); err != nil {
+		return err
 	}
 	return nil
 }
--- a/internal/testutil/kubeconfigbuilder.go
+++ b/internal/testutil/kubeconfigbuilder.go
@@ -18,7 +18,7 @@ import (
 	"strings"
 	"testing"

-	"gopkg.in/yaml.v3"
+	"sigs.k8s.io/kustomize/kyaml/yaml"
 )

 type Context struct {
@@ -46,7 +46,9 @@ func (k *Kubeconfig) WithCtxs(c ...*Context) *Kubeconfig        { (*k)["contexts
 func (k *Kubeconfig) ToYAML(t *testing.T) string {
 	t.Helper()
 	var v strings.Builder
-	if err := yaml.NewEncoder(&v).Encode(*k); err != nil {
+	enc := yaml.NewEncoder(&v)
+	enc.SetIndent(0)
+	if err := enc.Encode(*k); err != nil {
 		t.Fatalf("failed to encode mock kubeconfig: %v", err)
 	}
 	return v.String()
--- a/6
+++ b/6
@@ -33,6 +33,8 @@ usage() {
  fi

  cat <<EOF
+Manage and switch between kubectl contexts.
+
 USAGE:
  $SELF                       : list the contexts
  $SELF <NAME>                : switch to context <NAME>
@@ -46,6 +48,8 @@ USAGE:
  $SELF -u, --unset           : unset the current context

  $SELF -h,--help             : show this message
+
+  (This executable is the legacy bash-based implementation, consider upgrading to Go-based implementation.)
 EOF
 }

@@ -227,7 +231,7 @@ main() {
      # we don't call current_context here for two reasons:
      # - it does not fail when current-context property is not set
      # - it does not return a trailing newline
-      kubectl config current-context
+      $KUBECTL config current-context
    elif [[ "${1}" == '-u' || "${1}" == '--unset' ]]; then
      unset_context
    elif [[ "${1}" == '-h' || "${1}" == '--help' ]]; then
--- a/4
+++ b/4
@@ -33,12 +33,16 @@ usage() {
  fi

  cat <<EOF
+Switch between Kubernetes namespaces.
+
 USAGE:
  $SELF                    : list the namespaces in the current context
  $SELF <NAME>             : change the active namespace of current context
  $SELF -                  : switch to the previous namespace in this context
  $SELF -c, --current      : show the current namespace
  $SELF -h,--help          : show this message
+
+  (This executable is the legacy bash-based implementation, consider upgrading to Go-based implementation.)
 EOF
 }

--- a/test/common.bash
+++ b/test/common.bash
@@ -2,13 +2,15 @@

 # bats setup function
 setup() {
-  export XDG_CACHE_HOME="$(mktemp -d)"
-  export KUBECONFIG="${XDG_CACHE_HOME}/config"
+  TEMP_HOME="$(mktemp -d)"
+  export TEMP_HOME
+  export HOME=$TEMP_HOME
+  export KUBECONFIG="${TEMP_HOME}/config"
 }

 # bats teardown function
 teardown() {
-  rm -rf "$XDG_CACHE_HOME"
+  rm -rf "$TEMP_HOME"
 }

 use_config() {
Author	SHA1	Message	Date
ultram4rine	741e2b9986	fix bats tests	2026-03-08 14:49:31 -07:00
ultram4rine	ed644ff0a6	update client-go to 0.28.5	2026-03-08 14:49:31 -07:00
ultram4rine	004cdecf2b	use kyaml filters	2026-03-08 14:49:28 -07:00
ultram4rine	267d8dd5a8	update kyaml	2026-03-08 14:49:28 -07:00
ultram4rine	4a91c2170a	set indentation if ToYAML func	2026-03-08 14:49:28 -07:00
ultram4rine	042d269721	replace goyaml imports with kyaml	2026-03-08 14:49:28 -07:00
Ahmet Alp Balkan	4c9e8fb81e	feat: add -s/--shell flag for scoped sub-shell (#461 ) Spawns an isolated sub-shell with a minimal kubeconfig containing only the specified context. This allows the user to launch a shell where they can only interact with a single cluster without having to worry about a command or an LLM agent interacting with other contexts. Inside the isolated shell, most context switching/editing operations on kubectx are blocked. Nested shells not allowed. Fixes #12. Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>	2026-03-08 14:48:03 -07:00
Ahmet Alp Balkan	5a29645996	fix(ci): upgrade actions/cache from v2 to v4 (#460 ) Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>	2026-03-08 13:46:29 -07:00
Ahmet Alp Balkan	c52b598c2c	docs: add description and legacy note to bash --help output (#459 ) Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>	2026-03-08 13:28:53 -07:00
justin0u0	013b6bc252	fix(kubectx): use the env variable for kubectl (#438 )	2025-01-22 09:07:57 -08:00
Antoine	0bcd0d5dd5	fix some ci enhancement (#435 ) * fix(release): customize goreleaser config file, by adding json schema and fixing configuration version * fix(go): rename invalid comment format * fix(ci): made release workflow work again replace goreleaser --rm-dist flag by --clean increment go version for release pipeline fetch previous tags use by goreleaser give release workflow content write permissions to publish release	2025-01-07 12:25:01 -08:00
Suleiman Dibirov	561793c356	chore: upgrade Go version to 1.22 (#425 )	2024-07-10 14:25:37 -07:00
Suleiman Dibirov	b5daf2cef7	feat(kubens): added force flag to switch namespaces even if it doesn'… (#416 ) * feat(kubens): added force flag to switch namespaces even if it doesn't exist * Merged lines * fixed README.md and flags.go * updated flags.go, flags_test.go	2024-07-09 21:38:40 -07:00
pullmerge	4997a261dc	Fix some comments (#418 )	2024-04-15 09:31:07 -07:00
Marcos Alano	8fb8c9f2f2	Add support to publish Snaps using goreleaser (#353 ) Closes #351.	2023-12-25 00:28:51 -08:00
Nabil	11c19c0fb7	Add Scoop command (#396 )	2023-08-04 15:04:50 -07:00
Ahmet Alp Balkan	92e5b5f43b	Release v0.9.5	2023-07-13 20:12:27 -07:00
Ahmet Alp Balkan	33c27c03b2	k8s.io & go version bump (#393 )	2023-07-13 20:10:47 -07:00
niko2	7560b8f04f	Modify oh-my-zsh example (#346 )	2023-03-15 16:30:08 -07:00
Ahmet Alp Balkan	d8ff2847ba	fix go.sum tidy Signed-off-by: Ahmet Alp Balkan <ahmetalpbalkan@gmail.com>	2023-02-24 12:03:11 -08:00
Gastón Haro	da454d8a0c	Fix README.md "alias" to "rename" (#375 )	2023-02-24 09:20:16 -08:00
Nikolas Grottendieck	021c1bc736	Windows installation instructions (winget) (#365 ) (#381 )	2023-02-24 09:14:12 -08:00
Vincent Victoria	29850e1a75	Add prerequisite for completion to work after brew install (#368 )	2022-10-24 12:06:54 -07:00
Sandro	7d6b179aed	Bump golang.org/x/sys to fix compilation on M1 macs (#360 )	2022-08-04 08:41:17 -07:00
Apoorv Verma [AP]	e5e7f53336	Windows installation instructions (Chocolatey) (#350 )	2022-03-16 00:08:53 -07:00
Gábor Lipták	e6de7ba0a2	Run Go 1.17 mod tiny (#336 )	2022-01-10 21:00:11 -08:00
SADIK KUZU	b6b364685a	Fix typo on README.md (#341 )	2022-01-09 09:39:34 -08:00
Ahmet Alp Balkan	617e4f0562	add build cache to actions (#339 )	2021-12-26 21:50:17 -08:00
Kai	60523045a5	README.md: HTTP => HTTPS (#337 )	2021-11-28 08:23:09 -08:00
Ahmet Alp Balkan	38117be348	go mod tidy Signed-off-by: Ahmet Alp Balkan <ahmetb@google.com>	2021-11-27 21:34:14 -08:00
Gábor Lipták	f123e3864e	Bump Go to 1.17 in GHA (#335 )	2021-11-27 10:47:19 -08:00
Ahmet Alp Balkan	207dd606bb	overhaul the readme Signed-off-by: Ahmet Alp Balkan <ahmetb@google.com>	2021-11-12 12:53:40 -08:00
Joshua Gleitze	bdb1ea9e9d	Make Completions Installable with Antibody (#263 )	2021-11-04 08:34:23 -07:00
Ahmet Alp Balkan	a509657288	Update README.md	2021-10-21 11:15:52 -07:00
Johan Dewe	e449e739f8	Wrap context names in single quotes to prevent completion script to fail (#316 )	2021-08-19 10:04:48 -07:00
Carlos Alexandro Becker	33212062fb	docs: fix starchart url (#306 )	2021-07-18 18:33:51 -07:00
Yaakov Selkowitz	13695147d1	Add s390x build (#270 )	2021-07-08 17:21:05 -07:00
Yankee	58a5c4693e	Add interactive delete op (#304 )	2021-07-07 11:48:32 -07:00
Ahmet Alp Balkan	979012e094	Release v0.9.4	2021-07-06 15:24:06 -07:00
peter woodman	ff2f9661a2	stop using XDG_CACHE_HOME as home directory (#299 ) * stop using XDG_CACHE_HOME as home directory XDG_CACHE_HOME is not a substitute for $HOME, see [1]. [1]: https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html * fix bats testing setup/teardown since cmdutil.Homedir() would treat $XDG_CACHE_HOME as $HOME, deleting $XDG_CACHE_HOME would wipe out previous kubens state. now that we're not doing that, we need to make a real synthetic $HOME and clear it out so that $HOME/.kube/kubens doesn't persist between runs.	2021-05-28 16:09:32 -07:00
Ahmet Alp Balkan	34e9024835	add -V/--version flag to go implementations (#295 ) Uses goreleaser to pass ldflags. Signed-off-by: Ahmet Alp Balkan <ahmetb@google.com>	2021-04-09 09:43:48 -07:00