Long lines shortening in Bash PS1 customized prompt.

ps1.sh

parse_git_branch() {
  git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/ (\1)/'
}

parse_path() {
  if [ / = $PWD ]; then
    echo "/";
    return; 
  fi

  local path=`dirs`;
  local len=${#path};

  if [ $len -lt 20 ]; then
    echo "$path/";
    return; 
  fi

  # https://muffinresearch.co.uk/showing-last-two-directories-of-pwd-in-bash-prompt/
  local path=`pwd | awk -F\/ '{print $(NF-1),$(NF)}' | sed "s/ /\\//"`
  echo ".../$path/";
}

# User in bold yellow
PS1="\[\033[01;33m\]\u\[\033[01;0m\]"
# Hostname
PS1=$PS1"@\h"
# Full path in bold cyan (we use a function to get pwd and shorten it instead of "\w")
PS1=$PS1"\[\033[01;36m\] \$(parse_path)\[\033[01;0m\]"
# Git branch in yellow (if any)
PS1=$PS1"\[\033[33m\]\$(parse_git_branch)\[\033[00m\] $ "