Abbreviate git branch and show status with color & emojis

bashrc_prompt.sh

# The various escape codes that we can use to color our prompt.
         RED="\[\033[0;31m\]"
      YELLOW="\[\033[1;33m\]"
       GREEN="\[\033[0;32m\]"
        BLUE="\[\033[1;34m\]"
      ORANGE="\[\033[38;5;214m\]"
  LIGHT_BLUE="\[\033[1;94m\]"
LIGHT_YELLOW="\[\033[0;93m\]"
   LIGHT_RED="\[\033[1;31m\]"
 LIGHT_GREEN="\[\033[1;32m\]"
       WHITE="\[\033[1;37m\]"
  LIGHT_GRAY="\[\033[0;37m\]"
        BOLD="\[\033[1;4m\]"
  COLOR_NONE="\[\e[0m\]"

function is_git_repository {
  git branch > /dev/null 2>&1
}

# get current status of git repo
function parse_git_dirty {
  PROMPT_SYMBOL="🚀"
  BRANCH_COLOR=""

  STATUS="$(git status 2> /dev/null)"
  if [[ $? -ne 0 ]]; then return; fi
  if [[ "$STATUS" == *"is ahead of"* ]];        then PROMPT_SYMBOL="👆 "; fi
  if [[ "$STATUS" == *"is behind"* ]];          then PROMPT_SYMBOL="👇 "; fi
  if [[ "$STATUS" == *"Untracked files:"* ]];   then BRANCH_COLOR=$RED; fi
  if [[ "$STATUS" == *"not staged for commit:"* ]];   then BRANCH_COLOR=$LIGHT_RED; fi
  if [[ "$STATUS" == *"to be committed:"* ]];   then BRANCH_COLOR=$ORANGE; fi
  if [[ "$STATUS" == *"working tree clean"* ]]; then BRANCH_COLOR=$GREEN; fi
}

shorten () {
	cat | sed -E "s/(.{${1-30}}).*$/\1…/"
}

parse_git_branch() {
  git rev-parse --abbrev-ref HEAD 2> /dev/null | sed -e 's/ch[0-9]\{1,\}\///' | sed -e 's/feature\//✨ /' | sed -e 's/chore\//🔧 /' | sed -e 's/bug\//🐛 /' | shorten
}

function set_bash_prompt () {
  parse_git_dirty;
  GIT_INFO="$(parse_git_branch) $(parse_git_dirty)"
  VENV=$(echo $VIRTUAL_ENV | sed -e 's/.*\/\(.*\)/\1/')
  PS1="${VENV:+($VENV) }\[\e[36m\]\u@\h\[\e[00m\]:\[\e[1;34m\]\w\[\e[00m\] ${COLOR_NONE}${BRANCH_COLOR}${GIT_INFO}${COLOR_NONE}${PROMPT_SYMBOL} "
}

# Tell bash to execute this function just before displaying its prompt.
PROMPT_COMMAND=set_bash_prompt