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Author SHA1 Message Date
Ahmet Alp Balkan
840a9cf003 docs: simplify installation instructions into a single table
Replace repetitive per-package-manager sections with a compact table.
Move completion scripts into a collapsible <details> section.
Simplify manual install to point to the Releases page.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-08 17:58:17 -07:00
Ahmet Alp Balkan
bb9592d770 chore: update goreleaser config and release workflow (#475)
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-08 17:44:31 -07:00
Ahmet Alp Balkan
0d800e1367 fix: improve error handling and resource management in kubeconfig (#476)
This change addresses eight key improvements to the kubectx/kubens codebase:

Resource Management Fixes:
- Fix use-after-close bugs where Kubeconfig was accessed after Close()
- Fix resource leaks on error paths by ensuring defer kc.Close() is called
- Fix YAML encoder not being closed after Encode(), causing buffered data loss

API Design Improvements:
- Change ContextNames() to return ([]string, error) instead of silently returning
  nil on error, making parse failures distinguishable from empty results
- Change GetCurrentContext() to return (string, error) instead of returning ""
  for both "not set" and parse error cases
- Update all 16 call sites across cmd/kubectx and cmd/kubens packages to handle
  the new error returns while preserving backward-compatible behavior

Error Handling:
- Add explicit error handling for printer.Success() calls in 5+ locations
  by prefixing unchecked calls with _ =

Performance:
- Add slice pre-allocation in namespace list pagination using slices.Grow()
  before append loops, reducing allocations when fetching 500+ item batches

All changes maintain backward compatibility for missing kubeconfig keys while
improving error transparency and resource safety.
2026-03-08 17:44:18 -07:00
3 changed files with 38 additions and 148 deletions

View File

@@ -24,7 +24,7 @@ jobs:
runs-on: ubuntu-latest
steps:
- name: Checkout
uses: actions/checkout@master
uses: actions/checkout@v4
- run: git fetch --tags
- name: Setup Go
uses: actions/setup-go@v6

View File

@@ -15,7 +15,7 @@
# limitations under the License.
# This is an example goreleaser.yaml file with some sane defaults.
# Make sure to check the documentation at http://goreleaser.com
# Make sure to check the documentation at https://goreleaser.com
version: 2
before:
@@ -69,11 +69,11 @@ archives:
{{- else -}}v{{- . -}}
{{- end -}}
{{- end -}}
builds:
ids:
- kubectx
format_overrides:
- goos: windows
format: zip
formats: [zip]
files: ["LICENSE"]
- id: kubens-archive
name_template: |-
@@ -89,11 +89,11 @@ archives:
{{- else -}}v{{- . -}}
{{- end -}}
{{- end -}}
builds:
ids:
- kubens
format_overrides:
- goos: windows
format: zip
formats: [zip]
files: ["LICENSE"]
checksum:
name_template: "checksums.txt"
@@ -111,7 +111,7 @@ snapcrafts:
kubens is a tool to switch between Kubernetes namespaces (and configure them for kubectl) easily.
grade: stable
confinement: classic
base: core20
base: core24
apps:
kubectx:
command: kubectx

172
README.md
View File

@@ -72,139 +72,23 @@ names anymore.
## Installation
Stable versions of `kubectx` and `kubens` are small bash scripts that you
can find in this repository.
| Package manager | Command |
|---|---|
| [Homebrew](https://brew.sh/) (macOS & Linux) | `brew install kubectx` |
| [MacPorts](https://www.macports.org) (macOS) | `sudo port install kubectx` |
| apt (Debian/Ubuntu) | `sudo apt install kubectx` |
| pacman (Arch Linux) | `sudo pacman -S kubectx` |
| [Chocolatey](https://chocolatey.org/) (Windows) | `choco install kubens kubectx` |
| [Scoop](https://scoop.sh/) (Windows) | `scoop bucket add main && scoop install main/kubens main/kubectx` |
| [winget](https://learn.microsoft.com/en-us/windows/package-manager/) (Windows) | `winget install --id ahmetb.kubectx && winget install --id ahmetb.kubens` |
| [Krew](https://github.com/kubernetes-sigs/krew/) (kubectl plugin) | `kubectl krew install ctx && kubectl krew install ns` |
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)
Alternatively, download binaries from the [**Releases page &rarr;**](https://github.com/ahmetb/kubectx/releases) and add them to somewhere in your `PATH`.
**Installation options:**
<details>
<summary>Shell completion scripts</summary>
- [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 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
kubectl krew install ns
```
After installing, the tools will be available as `kubectl ctx` and `kubectl ns`.
### Homebrew (macOS and Linux)
If you use [Homebrew](https://brew.sh/) you can install like this:
```sh
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.
### MacPorts (macOS)
If you use [MacPorts](https://www.macports.org) you can install like this:
```sh
sudo port install kubectx
```
### 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)
(_if you are unfamiliar with the Debian release process and how to enable
testing/unstable repos, check out the
[Debian Wiki](https://wiki.debian.org/DebianReleases)_):
### pacman (Arch Linux)
Available as official Arch Linux package. Install it via:
```bash
sudo pacman -S kubectx
```
### Windows Installation (using Chocolatey)
Available as packages on [Chocolatey](https://chocolatey.org/why-chocolatey)
```pwsh
choco install kubens kubectx
```
### Windows Installation (using Scoop)
Available as packages on [Scoop](https://scoop.sh/)
```pwsh
scoop bucket add main
scoop install main/kubens main/kubectx
```
### Windows Installation (using winget)
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
```
### 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.
- Either:
- save them all to somewhere in your `PATH`,
- 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 ...`)
Example installation steps:
``` bash
sudo git clone https://github.com/ahmetb/kubectx /opt/kubectx
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)
#### zsh (with [antibody](https://getantibody.github.io))
Add this line to your [Plugins File](https://getantibody.github.io/usage/) (e.g.
`~/.zsh_plugins.txt`):
@@ -217,9 +101,9 @@ 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`.
`compinit`.
#### Completion scripts for plain `zsh`
#### zsh (plain)
The completion scripts have to be in a path that belongs to `$fpath`. Either
link or copy them to an existing folder.
@@ -244,7 +128,7 @@ depending on the `$fpath` of your zsh installation.
In case of errors, calling `compaudit` might help.
#### Completion scripts for `bash`
#### bash
```bash
git clone https://github.com/ahmetb/kubectx.git ~/.kubectx
@@ -259,7 +143,7 @@ export PATH=~/.kubectx:\$PATH
EOF
```
#### Completion scripts for `fish`
#### fish
```fish
mkdir -p ~/.config/fish/completions
@@ -267,6 +151,12 @@ ln -s /opt/kubectx/completion/kubectx.fish ~/.config/fish/completions/
ln -s /opt/kubectx/completion/kubens.fish ~/.config/fish/completions/
```
</details>
> [!NOTE]
> Tip: Show context/namespace in your shell prompt with [oh-my-posh](https://ohmyposh.dev/) or
> simply with [kube-ps1](https://github.com/jonmosco/kube-ps1).
-----
### Interactive mode
@@ -277,12 +167,12 @@ with fuzzy searching, you just need to [install
![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 by piping the output to another command (e.g. `kubectx |
cat `).
Caveats:
- 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 `).
-----
@@ -306,7 +196,7 @@ Colors in the output can be disabled by setting the
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].
[kube-ps1](https://github.com/jonmosco/kube-ps1).
#### Stargazers over time