Add current GIT branch and Symfony environment identifier to your Bash prompt

git-symfony-bash-prompt.sh

# Bash prompt for GIT and Symfony support
#
# Author: Andrej Vitez <contact@andrejvitez.com>
#
# Add this file to your homedir .bash_profile file or create a new one under 
# /etc/profile.d/git-symfony.sh
# This script will add current git branch to your Bash prompt. Also it will try to extract
# Symfony APP_ENV environment variable and add it to Bash prompt.
#
# If no GIT or Symfony data is available in current directory context a default Bash prompt
# will be used.
#
# Example prompt:
#   tezvi@hostname:/opt/app [feature/APP-1234-add-new-stuff] [sf:dev]
#   $ █

# Skip all for noninteractive shells.
[ ! -t 0 ] && return

export CLICOLOR=1
export LSCOLORS=Gxfxcxdxbxegedabagacad

COLOR_RED="\033[31m"
COLOR_WHITE="\033[0;33m"
COLOR_GREEN="\033[0;32m"
COLOR_PURPLE="\033[0;32m"
COLOR_NONE="\033[0m"

function get_git_branch() {
  GIT_BRANCH_MAXLEN=50
  GIT_BRANCH="$(git symbolic-ref --short HEAD 2>/dev/null)"

  if [[ ! -z "$GIT_BRANCH" ]]; then
    if [[ "${#GIT_BRANCH}" -gt "${GIT_BRANCH_MAXLEN}" ]]; then
      GIT_BRANCH="${GIT_BRANCH:0:${GIT_BRANCH_MAXLEN}}*"
    fi
    GIT_BRANCH=" ${COLOR_RED}[${GIT_BRANCH}]${COLOR_NONE}"
  fi

  echo -e "$GIT_BRANCH"
}

function get_symfony_env() {
  ENV_DIR="$(pwd)"
  while [[ "$ENV_DIR" != "/" ]]; do
    ENV_PATH="$ENV_DIR/.env"
    if [[ -d "$ENV_DIR/vendor" && -f "$ENV_PATH" ]]; then
      break
    fi
    ENV_DIR="$(dirname $ENV_DIR)"
  done

  if [[ ! -f "$ENV_PATH" ]]; then
    return
  fi

  SF_ENV=$(cat ${ENV_PATH} 2> /dev/null | grep APP_ENV | cut -f2 -d=)
  if [[ ! -z "$SF_ENV" ]]; then
    if [[ "${SF_ENV}" == "prod" ]]; then
      SF_ENV="${COLOR_RED}${SF_ENV}${COLOR_NONE}"
    fi
    SF_ENV=" ${COLOR_WHITE}[sf:${COLOR_NONE}${SF_ENV}${COLOR_WHITE}]${COLOR_NONE}"
  fi
  echo -e "$SF_ENV"
}

function generate_ps1() {
  GIT_BRANCH="$(get_git_branch)"
  SF_ENV="$(get_symfony_env)"

  if [[ "$GIT_BRANCH" != "" || "$SF_ENV" != "" ]]; then
    PS1="$(get_git_branch)$(get_symfony_env)\n\$ "
  else
    PS1="\$ "
  fi

  echo -e "$PS1"
}

PS1="${COLOR_GREEN}\u@\h${COLOR_NONE}:\w\$(generate_ps1)"