Custom Prompt for git and kubectl useful info. fast and pragmatic version.

custom-bash-prompt-git-kubectl.sh

#!/bin/sh
# @Author: @korutx
# @Date:   2018-05-31 12:18:34
# @Last Modified time: 2018-05-31 12:18:34
#
# Using: Add the following lines to .bashrc
#
# if [ -f ~/bin/my_prompt.sh ]; then
#    . ~/bin/my_prompt.sh
# fi



# Reset
Color_Off="\[\033[0m\]"       # Text Reset

# Regular Colors
Black="\[\033[0;30m\]"        # Black
Red="\[\033[0;31m\]"          # Red
Green="\[\033[0;32m\]"        # Green
Yellow="\[\033[0;33m\]"       # Yellow
Blue="\[\033[0;34m\]"         # Blue
Purple="\[\033[0;35m\]"       # Purple
Cyan="\[\033[0;36m\]"         # Cyan
White="\[\033[0;37m\]"        # White

# Bold
BBlack="\[\033[1;30m\]"       # Black
BRed="\[\033[1;31m\]"         # Red
BGreen="\[\033[1;32m\]"       # Green
BYellow="\[\033[1;33m\]"      # Yellow
BBlue="\[\033[1;34m\]"        # Blue
BPurple="\[\033[1;35m\]"      # Purple
BCyan="\[\033[1;36m\]"        # Cyan
BWhite="\[\033[1;37m\]"       # White

# Underline
UBlack="\[\033[4;30m\]"       # Black
URed="\[\033[4;31m\]"         # Red
UGreen="\[\033[4;32m\]"       # Green
UYellow="\[\033[4;33m\]"      # Yellow
UBlue="\[\033[4;34m\]"        # Blue
UPurple="\[\033[4;35m\]"      # Purple
UCyan="\[\033[4;36m\]"        # Cyan
UWhite="\[\033[4;37m\]"       # White

# Background
On_Black="\[\033[40m\]"       # Black
On_Red="\[\033[41m\]"         # Red
On_Green="\[\033[42m\]"       # Green
On_Yellow="\[\033[43m\]"      # Yellow
On_Blue="\[\033[44m\]"        # Blue
On_Purple="\[\033[45m\]"      # Purple
On_Cyan="\[\033[46m\]"        # Cyan
On_White="\[\033[47m\]"       # White

# High Intensty
IBlack="\[\033[0;90m\]"       # Black
IRed="\[\033[0;91m\]"         # Red
IGreen="\[\033[0;92m\]"       # Green
IYellow="\[\033[0;93m\]"      # Yellow
IBlue="\[\033[0;94m\]"        # Blue
IPurple="\[\033[0;95m\]"      # Purple
ICyan="\[\033[0;96m\]"        # Cyan
IWhite="\[\033[0;97m\]"       # White

# Bold High Intensty
BIBlack="\[\033[1;90m\]"      # Black
BIRed="\[\033[1;91m\]"        # Red
BIGreen="\[\033[1;92m\]"      # Green
BIYellow="\[\033[1;93m\]"     # Yellow
BIBlue="\[\033[1;94m\]"       # Blue
BIPurple="\[\033[1;95m\]"     # Purple
BICyan="\[\033[1;96m\]"       # Cyan
BIWhite="\[\033[1;97m\]"      # White

# High Intensty backgrounds
On_IBlack="\[\033[0;100m\]"   # Black
On_IRed="\[\033[0;101m\]"     # Red
On_IGreen="\[\033[0;102m\]"   # Green
On_IYellow="\[\033[0;103m\]"  # Yellow
On_IBlue="\[\033[0;104m\]"    # Blue
On_IPurple="\[\033[10;95m\]"  # Purple
On_ICyan="\[\033[0;106m\]"    # Cyan
On_IWhite="\[\033[0;107m\]"   # White

# Various variables you might want for your PS1 prompt instead
Time12h="\T"
Time12a="\@"
PathShort="\W"
PathFull="\w"
NewLine="\n"
Jobs="\j"

function kubectl_installed {
   kubectl version &> /dev/null
}

function kubectl_parse_current_context {
   #if kubectl_installed
   #then
      local KCONTEXT=$(cat ~/.kube/config | grep current-context | cut -d' ' -f2)
      echo -n $KCONTEXT
   #fi

}

function prompt_kubectl {
  # if kubectl_installed
  # then
    #echo ""
    echo "-[ KUBECTL ]-[ `kubectl_parse_current_context` ]-"
  # fi
}

function git_work_tree {
  git rev-parse --is-inside-work-tree &> /dev/null
}

function parse_git_branch {
  if git_work_tree
  then
  local BR=$(git rev-parse --symbolic-full-name --abbrev-ref HEAD 2> /dev/null)
  if [ "$BR" == HEAD ]
  then
    local NM=$(git name-rev --name-only HEAD 2> /dev/null)
    if [ "$NM" != undefined ]
    then echo -n "@$NM"
    else git rev-parse --short HEAD 2> /dev/null
    fi
  else
    echo -n $BR
  fi
  fi
}

function parse_git_status {
  if git_work_tree
  then
  local ST=$(git status --short 2> /dev/null)
  if [ -n "$ST" ]
  then echo -n " Modificaciones pendientes "
  else echo -n " Sin Modificaciones "
  fi
  fi
}

function prompt_git {
  if git_work_tree
  then
    echo ""
    echo "-[ GIT ]-[ `parse_git_branch` ]-[ `parse_git_status` ]-"
  fi
}

function dir_pwd {
  if [ "$PWD" = "$HOME" ]
  then echo -n "~"
  else pwd
          #| sed -e "s|\(.*/\).*|\1|"
  fi
}

export -f git_work_tree parse_git_branch parse_git_status prompt_git prompt_kubectl kubectl_parse_current_context dir_pwd

export PS1="\n-[$BIGreen \u@\h $Color_Off]-[ $BIRed\`dir_pwd\`$Color_Off ][ $BYellow\`date "+%T"\`$Color_Off ]\`prompt_git\` \n\`prompt_kubectl\`\n $IGreen # ->$Color_Off "
export TERM="xterm-color"