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speed up kubecontext prompt

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romkatv 2019-05-22 22:52:34 +02:00
parent bc58a2c0ba
commit e64be938b1
1 changed files with 23 additions and 13 deletions
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36
powerlevel9k.zsh-theme
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@ -105,9 +105,6 @@ typeset -g _P9K_F
# with data.
set_default -i POWERLEVEL9K_MAX_CACHE_SIZE 10000
# Note: Several performance-critical functions return results to the caller via global
# variabls rather than stdout. This is faster.
# Caching allows storing array-to-array associations. It should be used like this:
#
# if ! _p9k_cache_get "$key1" "$key2"; then
@ -125,15 +122,15 @@ set_default -i POWERLEVEL9K_MAX_CACHE_SIZE 10000
_p9k_cache_set() {
# Uncomment to see cache misses.
# echo "caching: ${(@0q)_P9K_CACHE_KEY} => (${(q)@})" >&2
_P9K_CACHE[$_P9K_CACHE_KEY]="${(pj:\0:)*}"
_P9K_CACHE[$_P9K_CACHE_KEY]="${(pj:\0:)*}0"
_P9K_CACHE_VAL=("$@")
(( #_P9K_CACHE < POWERLEVEL9K_MAX_CACHE_SIZE )) || typeset -gAH _P9K_CACHE=()
(( $#_P9K_CACHE < POWERLEVEL9K_MAX_CACHE_SIZE )) || typeset -gAH _P9K_CACHE=()
}
_p9k_cache_get() {
_P9K_CACHE_KEY="${(pj:\0:)*}"
_P9K_CACHE_VAL=("${(@0)${_P9K_CACHE[$_P9K_CACHE_KEY]}}")
(( #_P9K_CACHE_VAL ))
local v=$_P9K_CACHE[$_P9K_CACHE_KEY]
[[ -n $v ]] && _P9K_CACHE_VAL=("${(@0)${v[1,-2]}}")
}
# Sets _P9K_RETVAL to the icon whose name is supplied via $1.
@ -1923,7 +1920,7 @@ prompt_vcs() {
_p9k_vcs_render $0 $1 $2 && return
backends=(${backends:#git})
fi
if (( #backends )); then
if (( $#backends )); then
VCS_WORKDIR_DIRTY=false
VCS_WORKDIR_HALF_DIRTY=false
local current_state=""
@ -2048,11 +2045,24 @@ prompt_dir_writable() {
# Kubernetes Current Context/Namespace
prompt_kubecontext() {
(( $+commands[kubectl] )) || return
local ctx=$(command kubectl config view -o=jsonpath='{.current-context}')
[[ -n $ctx ]] || return
local ns="${$(command kubectl config view -o=jsonpath="{.contexts[?(@.name==\"$ctx\")].context.namespace}"):-default}"
[[ $ctx == $ns ]] || ctx+="/$ns"
"$1_prompt_segment" "$0" "$2" "magenta" "white" "KUBERNETES_ICON" 0 '' "${ctx//\%/%%}"
local cfg
local -a key
for cfg in ${(s.:.)${KUBECONFIG:-$HOME/.kube/config}}; do
local -H stat
zstat -H stat -- $cfg 2>/dev/null || continue
key+=($cfg $stat[inode] $stat[mtime] $stat[size] $stat[mode])
done
if ! _p9k_cache_get $0 "${key[@]}"; then
local ctx=$(command kubectl config view -o=jsonpath='{.current-context}')
if [[ -n $ctx ]]; then
local p="{.contexts[?(@.name==\"$ctx\")].context.namespace}"
local ns="${$(command kubectl config view -o=jsonpath=$p):-default}"
[[ $ctx == $ns ]] || ctx+="/$ns"
fi
_p9k_cache_set "$ctx"
fi
[[ -n $_P9K_CACHE_VAL[1] ]] || return
$1_prompt_segment $0 $2 magenta white KUBERNETES_ICON 0 '' "${_P9K_CACHE_VAL[1]//\%/%%}"
}
################################################################