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kube_ps1: customize colors and dynamically toggle prompt (#7269)

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changes:
- easily customize the colors via variables
- command to switch on/off the custom prompt
- Improved documentation with example on how to append on the prompt.

Fixes #7261
This commit is contained in:
Pmoranga 2019-04-09 22:41:36 +02:00 committed by Marc Cornellà
parent 0c3499ecd9
commit d36c1b8d22
2 changed files with 45 additions and 11 deletions
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28
plugins/kube-ps1/README.md
View file

@ -45,20 +45,37 @@ want to load.
vim $HOME/.zshrc
```
Add kube-ps1 to the list of enabled plugins:
Add kube-ps1 to the list of enabled plugins and enable it on the prompt:
```shell
plugins=(
git
kube-ps1
)
PROMPT=$PROMPT'$(kube_ps1) '
```
Note: the `PROMPT` example above was tested with the theme `robbyrussell`
## Enabling / Disabling on the current shell
Sometimes the kubernetes information can be anoying, you can easily
switch it on and off with the following commands:
```shell
kubeon
```
```shell
kubeoff
```
## Colors
Blue was used as the prefix to match the Kubernetes color as closely as
possible. Red was chosen as the cluster name to stand out, and cyan
for the namespace. These can of course be changed.
for the namespace. Check the customization section for changing them.
## Customization
@ -75,7 +92,12 @@ The default settings can be overridden in ~/.zshrc
| `KUBE_PS1_SEPERATOR` | `\|` | Separator between symbol and cluster name |
| `KUBE_PS1_DIVIDER` | `:` | Separator between cluster and namespace |
| `KUBE_PS1_SUFFIX` | `)` | Prompt closing character |
| `KUBE_PS1_COLOR_SYMBOL` | `"%F{blue}"` | Custom color for the symbol |
| `KUBE_PS1_COLOR_CONTEXT` | `"%F{red}"` | Custom color for the context |
| `KUBE_PS1_COLOR_NS` | `"%F{cyan}"` | Custom color for the namespace |
| `KUBE_PS1_ENABLED` | `true` | Set to false to start disabled on any new shell, `kubeon`/`kubeoff` will flip this value on the current shell |
## Contributors
Jared Yanovich
- Jared Yanovich
- Pedro Moranga

28
plugins/kube-ps1/kube-ps1.plugin.zsh
View file

@ -39,6 +39,11 @@ KUBE_PS1_DIVIDER="${KUBE_PS1_DIVIDER-:}"
KUBE_PS1_PREFIX="${KUBE_PS1_PREFIX-(}"
KUBE_PS1_SUFFIX="${KUBE_PS1_SUFFIX-)}"
KUBE_PS1_LAST_TIME=0
KUBE_PS1_ENABLED=true
KUBE_PS1_COLOR_SYMBOL="%F{blue}"
KUBE_PS1_COLOR_CONTEXT="%F{red}"
KUBE_PS1_COLOR_NS="%F{cyan}"
_kube_ps1_binary_check() {
command -v "$1" >/dev/null
@ -127,21 +132,28 @@ _kube_ps1_get_context_ns() {
fi
}
# function to disable the prompt on the current shell
kubeon(){
KUBE_PS1_ENABLED=true
}
# function to disable the prompt on the current shell
kubeoff(){
KUBE_PS1_ENABLED=false
}
# Build our prompt
kube_ps1 () {
local reset_color="%f"
local blue="%F{blue}"
local red="%F{red}"
local cyan="%F{cyan}"
local reset_color="%{$reset_color%}"
[[ ${KUBE_PS1_ENABLED} != 'true' ]] && return
KUBE_PS1="${reset_color}$KUBE_PS1_PREFIX"
KUBE_PS1+="${blue}$(_kube_ps1_symbol)"
KUBE_PS1+="${KUBE_PS1_COLOR_SYMBOL}$(_kube_ps1_symbol)"
KUBE_PS1+="${reset_color}$KUBE_PS1_SEPERATOR"
KUBE_PS1+="${red}$KUBE_PS1_CONTEXT${reset_color}"
KUBE_PS1+="${KUBE_PS1_COLOR_CONTEXT}$KUBE_PS1_CONTEXT${reset_color}"
KUBE_PS1+="$KUBE_PS1_DIVIDER"
KUBE_PS1+="${cyan}$KUBE_PS1_NAMESPACE${reset_color}"
KUBE_PS1+="${KUBE_PS1_COLOR_NS}$KUBE_PS1_NAMESPACE${reset_color}"
KUBE_PS1+="$KUBE_PS1_SUFFIX"
echo "${KUBE_PS1}"
}