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fix(kubectx): fix display of k8s contexts without double quotes (#12534)

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BREAKING CHANGE: the `kubectx` plugin now properly displays contexts from the
kubectx_mapping array, without using double quotes. Please refer to the plugin
README to see how to use it properly.

Closes #12534

Co-authored-by: Ken Kelly <ken@kenhkelly.us>
This commit is contained in:
Marc Cornellà 2024-08-01 10:00:58 +02:00
parent 44ea99e7b9
commit 22bda7799b
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2 changed files with 44 additions and 12 deletions
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48
plugins/kubectx/README.md
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@ -1,25 +1,55 @@
# kubectx - show active kubectl context # kubectx - show active kubectl context
This plugins adds ```kubectx_prompt_info()``` function. It shows name of the This plugins adds `kubectx_prompt_info()` function. It shows name of the active
active kubectl context (```kubectl config current-context```). kubectl context (`kubectl config current-context`).
You can use it to customize prompt and know if You are on prod cluster ;) You can use it to customize prompt and know if You are on prod cluster ;)
_Example_. Add to **.zshrc**: To use this plugin, add `kubectx` to the plugins array in your zshrc file:
```zsh
plugins=(... kubectx)
``` ```
### Usage
Add to **.zshrc**:
```zsh
# right prompt
RPS1='$(kubectx_prompt_info)' RPS1='$(kubectx_prompt_info)'
# left prompt
PROMPT="$PROMPT"'$(kubectx_prompt_info)'
``` ```
### custom ctx names ### Custom context names
One can rename default context name for better readability. You can rename the default context name for better readability or additional formatting.
These values accept [prompt expansion sequences](http://zsh.sourceforge.net/Doc/Release/Prompt-Expansion.html)
such as `%F{color}`, `%f`, `%K{color}`, `%k`, `%B`, `%b`, `%U`, `%u`, `%S`, `%s`, `%{...%}`.
_Example_. Add to **.zshrc**: **Example**: add this to your .zshrc file:
```zsh
kubectx_mapping[minikube]="mini"
kubectx_mapping[context_name_from_kubeconfig]="$emoji[wolf_face]"
kubectx_mapping[production_cluster]="%{$fg[yellow]%}prod!%{$reset_color%}"
# contexts with spaces
kubectx_mapping[context\ with\ spaces]="%F{red}spaces%f"
# don't use quotes as it will break the prompt
kubectx_mapping["context with spaces"]="%F{red}spaces%f" # ti
``` ```
kubectx_mapping["minikube"]="mini"
kubectx_mapping["context_name_from_kubeconfig"]="$emoji[wolf_face]" You can also define the whole mapping array at once:
kubectx_mapping["production_cluster"]="%{$fg[yellow]%}prod!%{$reset_color%}"
```zsh
typeset -A kubectx_mapping
kubectx_mapping=(
minikube "mini"
context_name_from_kubeconfig "$emoji[wolf_face]"
production_cluster "%{$fg[yellow]%}prod!%{$reset_color%}"
"context with spaces" "%F{red}spaces%f"
)
``` ```
![staging](stage.png) ![staging](stage.png)

8
plugins/kubectx/kubectx.plugin.zsh
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@ -7,7 +7,9 @@ function kubectx_prompt_info() {
[[ -n "$current_ctx" ]] || return [[ -n "$current_ctx" ]] || return
# use value in associative array if it exists # Use value in associative array if it exists, otherwise fall back to the context name
# otherwise fall back to the context name #
echo "${kubectx_mapping[\"$current_ctx\"]:-${current_ctx:gs/%/%%}}" # Note: we need to escape the % character in the prompt string when coming directly from
# the context name, as it could contain a % character.
echo "${kubectx_mapping[$current_ctx]:-${current_ctx:gs/%/%%}}"
} }