+++ /dev/null
-#!/usr/bin/env bash
-
-# Kubernetes prompt helper for bash/zsh
-# Displays current context and namespace
-
-# Copyright 2021 Jon Mosco
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-# Debug
-[[ -n $DEBUG ]] && set -x
-
-# Default values for the prompt
-# Override these values in ~/.zshrc or ~/.bashrc
-KUBE_PS1_BINARY="${KUBE_PS1_BINARY:-kubectl}"
-KUBE_PS1_SYMBOL_ENABLE="${KUBE_PS1_SYMBOL_ENABLE:-true}"
-KUBE_PS1_SYMBOL_DEFAULT=${KUBE_PS1_SYMBOL_DEFAULT:-$'\u2388'}
-KUBE_PS1_SYMBOL_PADDING="${KUBE_PS1_SYMBOL_PADDING:-false}"
-KUBE_PS1_SYMBOL_USE_IMG="${KUBE_PS1_SYMBOL_USE_IMG:-false}"
-KUBE_PS1_NS_ENABLE="${KUBE_PS1_NS_ENABLE:-true}"
-KUBE_PS1_CONTEXT_ENABLE="${KUBE_PS1_CONTEXT_ENABLE:-true}"
-KUBE_PS1_PREFIX="${KUBE_PS1_PREFIX-(}"
-KUBE_PS1_SEPARATOR="${KUBE_PS1_SEPARATOR-|}"
-KUBE_PS1_DIVIDER="${KUBE_PS1_DIVIDER-:}"
-KUBE_PS1_SUFFIX="${KUBE_PS1_SUFFIX-)}"
-
-KUBE_PS1_SYMBOL_COLOR="${KUBE_PS1_SYMBOL_COLOR-blue}"
-KUBE_PS1_CTX_COLOR="${KUBE_PS1_CTX_COLOR-red}"
-KUBE_PS1_NS_COLOR="${KUBE_PS1_NS_COLOR-cyan}"
-KUBE_PS1_BG_COLOR="${KUBE_PS1_BG_COLOR}"
-
-KUBE_PS1_KUBECONFIG_CACHE="${KUBECONFIG}"
-KUBE_PS1_DISABLE_PATH="${HOME}/.kube/kube-ps1/disabled"
-KUBE_PS1_LAST_TIME=0
-KUBE_PS1_CLUSTER_FUNCTION="${KUBE_PS1_CLUSTER_FUNCTION}"
-KUBE_PS1_NAMESPACE_FUNCTION="${KUBE_PS1_NAMESPACE_FUNCTION}"
-
-# Determine our shell
-if [ "${ZSH_VERSION-}" ]; then
- KUBE_PS1_SHELL="zsh"
-elif [ "${BASH_VERSION-}" ]; then
- KUBE_PS1_SHELL="bash"
-fi
-
-_kube_ps1_init() {
- [[ -f "${KUBE_PS1_DISABLE_PATH}" ]] && KUBE_PS1_ENABLED=off
-
- case "${KUBE_PS1_SHELL}" in
- "zsh")
- _KUBE_PS1_OPEN_ESC="%{"
- _KUBE_PS1_CLOSE_ESC="%}"
- _KUBE_PS1_DEFAULT_BG="%k"
- _KUBE_PS1_DEFAULT_FG="%f"
- setopt PROMPT_SUBST
- autoload -U add-zsh-hook
- add-zsh-hook precmd _kube_ps1_update_cache
- zmodload -F zsh/stat b:zstat
- zmodload zsh/datetime
- ;;
- "bash")
- _KUBE_PS1_OPEN_ESC=$'\001'
- _KUBE_PS1_CLOSE_ESC=$'\002'
- _KUBE_PS1_DEFAULT_BG=$'\033[49m'
- _KUBE_PS1_DEFAULT_FG=$'\033[39m'
- [[ $PROMPT_COMMAND =~ _kube_ps1_update_cache ]] || PROMPT_COMMAND="_kube_ps1_update_cache;${PROMPT_COMMAND:-:}"
- ;;
- esac
-}
-
-_kube_ps1_color_fg() {
- local KUBE_PS1_FG_CODE
- case "${1}" in
- black) KUBE_PS1_FG_CODE=0;;
- red) KUBE_PS1_FG_CODE=1;;
- green) KUBE_PS1_FG_CODE=2;;
- yellow) KUBE_PS1_FG_CODE=3;;
- blue) KUBE_PS1_FG_CODE=4;;
- magenta) KUBE_PS1_FG_CODE=5;;
- cyan) KUBE_PS1_FG_CODE=6;;
- white) KUBE_PS1_FG_CODE=7;;
- # 256
- [0-9]|[1-9][0-9]|[1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-6]) KUBE_PS1_FG_CODE="${1}";;
- *) KUBE_PS1_FG_CODE=default
- esac
-
- if [[ "${KUBE_PS1_FG_CODE}" == "default" ]]; then
- KUBE_PS1_FG_CODE="${_KUBE_PS1_DEFAULT_FG}"
- return
- elif [[ "${KUBE_PS1_SHELL}" == "zsh" ]]; then
- KUBE_PS1_FG_CODE="%F{$KUBE_PS1_FG_CODE}"
- elif [[ "${KUBE_PS1_SHELL}" == "bash" ]]; then
- if tput setaf 1 &> /dev/null; then
- KUBE_PS1_FG_CODE="$(tput setaf ${KUBE_PS1_FG_CODE})"
- elif [[ $KUBE_PS1_FG_CODE -ge 0 ]] && [[ $KUBE_PS1_FG_CODE -le 256 ]]; then
- KUBE_PS1_FG_CODE="\033[38;5;${KUBE_PS1_FG_CODE}m"
- else
- KUBE_PS1_FG_CODE="${_KUBE_PS1_DEFAULT_FG}"
- fi
- fi
- echo ${_KUBE_PS1_OPEN_ESC}${KUBE_PS1_FG_CODE}${_KUBE_PS1_CLOSE_ESC}
-}
-
-_kube_ps1_color_bg() {
- local KUBE_PS1_BG_CODE
- case "${1}" in
- black) KUBE_PS1_BG_CODE=0;;
- red) KUBE_PS1_BG_CODE=1;;
- green) KUBE_PS1_BG_CODE=2;;
- yellow) KUBE_PS1_BG_CODE=3;;
- blue) KUBE_PS1_BG_CODE=4;;
- magenta) KUBE_PS1_BG_CODE=5;;
- cyan) KUBE_PS1_BG_CODE=6;;
- white) KUBE_PS1_BG_CODE=7;;
- # 256
- [0-9]|[1-9][0-9]|[1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-6]) KUBE_PS1_BG_CODE="${1}";;
- *) KUBE_PS1_BG_CODE=$'\033[0m';;
- esac
-
- if [[ "${KUBE_PS1_BG_CODE}" == "default" ]]; then
- KUBE_PS1_FG_CODE="${_KUBE_PS1_DEFAULT_BG}"
- return
- elif [[ "${KUBE_PS1_SHELL}" == "zsh" ]]; then
- KUBE_PS1_BG_CODE="%K{$KUBE_PS1_BG_CODE}"
- elif [[ "${KUBE_PS1_SHELL}" == "bash" ]]; then
- if tput setaf 1 &> /dev/null; then
- KUBE_PS1_BG_CODE="$(tput setab ${KUBE_PS1_BG_CODE})"
- elif [[ $KUBE_PS1_BG_CODE -ge 0 ]] && [[ $KUBE_PS1_BG_CODE -le 256 ]]; then
- KUBE_PS1_BG_CODE="\033[48;5;${KUBE_PS1_BG_CODE}m"
- else
- KUBE_PS1_BG_CODE="${DEFAULT_BG}"
- fi
- fi
- echo ${OPEN_ESC}${KUBE_PS1_BG_CODE}${CLOSE_ESC}
-}
-
-_kube_ps1_binary_check() {
- command -v $1 >/dev/null
-}
-
-_kube_ps1_symbol() {
- [[ "${KUBE_PS1_SYMBOL_ENABLE}" == false ]] && return
-
- case "${KUBE_PS1_SHELL}" in
- bash)
- if ((BASH_VERSINFO[0] >= 4)) && [[ $'\u2388' != "\\u2388" ]]; then
- KUBE_PS1_SYMBOL="${KUBE_PS1_SYMBOL_DEFAULT}"
- KUBE_PS1_SYMBOL_IMG=$'\u2638\ufe0f'
- else
- KUBE_PS1_SYMBOL=$'\xE2\x8E\x88'
- KUBE_PS1_SYMBOL_IMG=$'\xE2\x98\xB8'
- fi
- ;;
- zsh)
- KUBE_PS1_SYMBOL="${KUBE_PS1_SYMBOL_DEFAULT}"
- KUBE_PS1_SYMBOL_IMG="\u2638";;
- *)
- KUBE_PS1_SYMBOL="k8s"
- esac
-
- if [[ "${KUBE_PS1_SYMBOL_USE_IMG}" == true ]]; then
- KUBE_PS1_SYMBOL="${KUBE_PS1_SYMBOL_IMG}"
- fi
-
- if [[ "${KUBE_PS1_SYMBOL_PADDING}" == true ]]; then
- echo "${KUBE_PS1_SYMBOL} "
- else
- echo "${KUBE_PS1_SYMBOL}"
- fi
-
-}
-
-_kube_ps1_split() {
- type setopt >/dev/null 2>&1 && setopt SH_WORD_SPLIT
- local IFS=$1
- echo $2
-}
-
-_kube_ps1_file_newer_than() {
- local mtime
- local file=$1
- local check_time=$2
-
- if [[ "${KUBE_PS1_SHELL}" == "zsh" ]]; then
- mtime=$(zstat +mtime "${file}")
- elif stat -c "%s" /dev/null &> /dev/null; then
- # GNU stat
- mtime=$(stat -L -c %Y "${file}")
- else
- # BSD stat
- mtime=$(stat -L -f %m "$file")
- fi
-
- [[ "${mtime}" -gt "${check_time}" ]]
-}
-
-_kube_ps1_update_cache() {
- local return_code=$?
-
- [[ "${KUBE_PS1_ENABLED}" == "off" ]] && return $return_code
-
- if ! _kube_ps1_binary_check "${KUBE_PS1_BINARY}"; then
- # No ability to fetch context/namespace; display N/A.
- KUBE_PS1_CONTEXT="BINARY-N/A"
- KUBE_PS1_NAMESPACE="N/A"
- return
- fi
-
- if [[ "${KUBECONFIG}" != "${KUBE_PS1_KUBECONFIG_CACHE}" ]]; then
- # User changed KUBECONFIG; unconditionally refetch.
- KUBE_PS1_KUBECONFIG_CACHE=${KUBECONFIG}
- _kube_ps1_get_context_ns
- return
- fi
-
- # kubectl will read the environment variable $KUBECONFIG
- # otherwise set it to ~/.kube/config
- local conf
- for conf in $(_kube_ps1_split : "${KUBECONFIG:-${HOME}/.kube/config}"); do
- [[ -r "${conf}" ]] || continue
- if _kube_ps1_file_newer_than "${conf}" "${KUBE_PS1_LAST_TIME}"; then
- _kube_ps1_get_context_ns
- return
- fi
- done
-
- return $return_code
-}
-
-_kube_ps1_get_context() {
- if [[ "${KUBE_PS1_CONTEXT_ENABLE}" == true ]]; then
- KUBE_PS1_CONTEXT="$(${KUBE_PS1_BINARY} config current-context 2>/dev/null)"
- # Set namespace to 'N/A' if it is not defined
- KUBE_PS1_CONTEXT="${KUBE_PS1_CONTEXT:-N/A}"
-
- if [[ ! -z "${KUBE_PS1_CLUSTER_FUNCTION}" ]]; then
- KUBE_PS1_CONTEXT=$($KUBE_PS1_CLUSTER_FUNCTION $KUBE_PS1_CONTEXT)
- fi
- fi
-}
-
-_kube_ps1_get_ns() {
- if [[ "${KUBE_PS1_NS_ENABLE}" == true ]]; then
- KUBE_PS1_NAMESPACE="$(${KUBE_PS1_BINARY} config view --minify --output 'jsonpath={..namespace}' 2>/dev/null)"
- # Set namespace to 'default' if it is not defined
- KUBE_PS1_NAMESPACE="${KUBE_PS1_NAMESPACE:-default}"
-
- if [[ ! -z "${KUBE_PS1_NAMESPACE_FUNCTION}" ]]; then
- KUBE_PS1_NAMESPACE=$($KUBE_PS1_NAMESPACE_FUNCTION $KUBE_PS1_NAMESPACE)
- fi
- fi
-}
-
-_kube_ps1_get_context_ns() {
- # Set the command time
- if [[ "${KUBE_PS1_SHELL}" == "bash" ]]; then
- if ((BASH_VERSINFO[0] >= 4 && BASH_VERSINFO[1] >= 2)); then
- KUBE_PS1_LAST_TIME=$(printf '%(%s)T')
- else
- KUBE_PS1_LAST_TIME=$(date +%s)
- fi
- elif [[ "${KUBE_PS1_SHELL}" == "zsh" ]]; then
- KUBE_PS1_LAST_TIME=$EPOCHSECONDS
- fi
-
- _kube_ps1_get_context
- _kube_ps1_get_ns
-}
-
-# Set kube-ps1 shell defaults
-_kube_ps1_init
-
-_kubeon_usage() {
- cat <<"EOF"
-Toggle kube-ps1 prompt on
-
-Usage: kubeon [-g | --global] [-h | --help]
-
-With no arguments, turn off kube-ps1 status for this shell instance (default).
-
- -g --global turn on kube-ps1 status globally
- -h --help print this message
-EOF
-}
-
-_kubeoff_usage() {
- cat <<"EOF"
-Toggle kube-ps1 prompt off
-
-Usage: kubeoff [-g | --global] [-h | --help]
-
-With no arguments, turn off kube-ps1 status for this shell instance (default).
-
- -g --global turn off kube-ps1 status globally
- -h --help print this message
-EOF
-}
-
-kubeon() {
- if [[ "${1}" == '-h' || "${1}" == '--help' ]]; then
- _kubeon_usage
- elif [[ "${1}" == '-g' || "${1}" == '--global' ]]; then
- rm -f -- "${KUBE_PS1_DISABLE_PATH}"
- elif [[ "$#" -ne 0 ]]; then
- echo -e "error: unrecognized flag ${1}\\n"
- _kubeon_usage
- return
- fi
-
- KUBE_PS1_ENABLED=on
-}
-
-kubeoff() {
- if [[ "${1}" == '-h' || "${1}" == '--help' ]]; then
- _kubeoff_usage
- elif [[ "${1}" == '-g' || "${1}" == '--global' ]]; then
- mkdir -p -- "$(dirname "${KUBE_PS1_DISABLE_PATH}")"
- touch -- "${KUBE_PS1_DISABLE_PATH}"
- elif [[ $# -ne 0 ]]; then
- echo "error: unrecognized flag ${1}" >&2
- _kubeoff_usage
- return
- fi
-
- KUBE_PS1_ENABLED=off
-}
-
-# Build our prompt
-kube_ps1() {
- [[ "${KUBE_PS1_ENABLED}" == "off" ]] && return
- [[ -z "${KUBE_PS1_CONTEXT}" ]] && [[ "${KUBE_PS1_CONTEXT_ENABLE}" == true ]] && return
-
- local KUBE_PS1
- local KUBE_PS1_RESET_COLOR="${_KUBE_PS1_OPEN_ESC}${_KUBE_PS1_DEFAULT_FG}${_KUBE_PS1_CLOSE_ESC}"
-
- # Background Color
- [[ -n "${KUBE_PS1_BG_COLOR}" ]] && KUBE_PS1+="$(_kube_ps1_color_bg ${KUBE_PS1_BG_COLOR})"
-
- # Prefix
- if [[ -z "${KUBE_PS1_PREFIX_COLOR:-}" ]] && [[ -n "${KUBE_PS1_PREFIX}" ]]; then
- KUBE_PS1+="${KUBE_PS1_PREFIX}"
- else
- KUBE_PS1+="$(_kube_ps1_color_fg $KUBE_PS1_PREFIX_COLOR)${KUBE_PS1_PREFIX}${KUBE_PS1_RESET_COLOR}"
- fi
-
- # Symbol
- KUBE_PS1+="$(_kube_ps1_color_fg $KUBE_PS1_SYMBOL_COLOR)$(_kube_ps1_symbol)${KUBE_PS1_RESET_COLOR}"
-
- if [[ -n "${KUBE_PS1_SEPARATOR}" ]] && [[ "${KUBE_PS1_SYMBOL_ENABLE}" == true ]]; then
- KUBE_PS1+="${KUBE_PS1_SEPARATOR}"
- fi
-
- # Context
- if [[ "${KUBE_PS1_CONTEXT_ENABLE}" == true ]]; then
- KUBE_PS1+="$(_kube_ps1_color_fg $KUBE_PS1_CTX_COLOR)${KUBE_PS1_CONTEXT}${KUBE_PS1_RESET_COLOR}"
- fi
-
- # Namespace
- if [[ "${KUBE_PS1_NS_ENABLE}" == true ]]; then
- if [[ -n "${KUBE_PS1_DIVIDER}" ]] && [[ "${KUBE_PS1_CONTEXT_ENABLE}" == true ]]; then
- KUBE_PS1+="${KUBE_PS1_DIVIDER}"
- fi
- KUBE_PS1+="$(_kube_ps1_color_fg ${KUBE_PS1_NS_COLOR})${KUBE_PS1_NAMESPACE}${KUBE_PS1_RESET_COLOR}"
- fi
-
- # Suffix
- if [[ -z "${KUBE_PS1_SUFFIX_COLOR:-}" ]] && [[ -n "${KUBE_PS1_SUFFIX}" ]]; then
- KUBE_PS1+="${KUBE_PS1_SUFFIX}"
- else
- KUBE_PS1+="$(_kube_ps1_color_fg $KUBE_PS1_SUFFIX_COLOR)${KUBE_PS1_SUFFIX}${KUBE_PS1_RESET_COLOR}"
- fi
-
- # Close Background color if defined
- [[ -n "${KUBE_PS1_BG_COLOR}" ]] && KUBE_PS1+="${_KUBE_PS1_OPEN_ESC}${_KUBE_PS1_DEFAULT_BG}${_KUBE_PS1_CLOSE_ESC}"
-
- echo "${KUBE_PS1}"
-}
projects / dotfiles.git / blobdiff