A sample dynamic/custom prompt

.custom_prompt

# NOTICE: This file is kept in source control; see
# https://gitlab.com/bennettp123/bash_profile

CLICOLOR=1
export CLICOLOR

DIM='\[\e[2m\]'
NORMAL='\[\e[0m\]'
BOLD='\[\e[1m\]'
GREEN='\[\e[32m\]'
BLUE='\[\e[34m\]'
YELLOW='\[\e[33m\]'
RED='\[\e[91m\]'

if [ -n "$CLICOLOR" ]; then
  if [ `id -u` -eq 0 ]; then
    PS1="\n${RED}\u@${YELLOW}\H${NORMAL}\n${BLUE}\w${NORMAL}\n${BOLD}\$${NORMAL} "
  else
    PS1="\n${GREEN}\u@${YELLOW}\H${NORMAL}\n${BLUE}\w${NORMAL}\n${BOLD}\$${NORMAL} "
  fi
fi

# dynamic prompts
aws_profile_info() {

  if [ -z "$ORIGINAL_PS1" ]; then
    ORIGINAL_PS1="$PS1"
  fi

  PS1="$ORIGINAL_PS1"

  # custom virtualenv
  if [ -n "$VIRTUAL_ENV" ] && env | grep -q VIRTUAL_ENV; then
    if [ -n "$CLICOLOR" ]; then
      PS1="\n${DIM}VIRTUAL_ENV=$VIRTUAL_ENV${NORMAL}$PS1"
    else
      PS1="($(basename "$VIRTUAL_ENV")) $PS1"
    fi
  fi

  # custom ecs profile
  if [ -n "$ECS_PROFILE" ] && env | grep -q AWS_PROFILE; then
    if [ -n "$CLICOLOR" ]; then
      PS1="\n${DIM}ECS_PROFILE=${ECS_PROFILE}${NORMAL}$PS1"
    else
      PS1="[${ECS_PROFILE}] $PS1"
    fi
  fi

  # custom aws profile
  if [ -n "$AWS_PROFILE" ] && env | grep -q AWS_PROFILE; then
    if [ -n "$CLICOLOR" ]; then
      PS1="\n${DIM}AWS_PROFILE=${AWS_PROFILE}${NORMAL}$PS1"
    else
      PS1="[${AWS_PROFILE}] $PS1"
    fi
  fi

  # custom docker machine
  if [ -n "$DOCKER_MACHINE_NAME" ] && env | grep -q DOCKER_MACHINE_NAME; then
    if [ -n "$CLICOLOR" ]; then
      PS1="\n${DIM}DOCKER_MACHINE_NAME=$DOCKER_MACHINE_NAME${NORMAL}$PS1"
    else
      PS1="{${DOCKER_MACHINE_NAME}} $PS1"
    fi
  fi

  if [ -n "$PULUMI_CONFIG_PASSPHRASE" ] && env | grep -q PULUMI_CONFIG_PASSPHRASE; then
    if [ -n "$CLICOLOR" ]; then
      PS1="\n${DIM}PULUMI_CONFIG_PASSPHRASE=${PULUMI_CONFIG_PASSPHRASE}${NORMAL}$PS1"
    else
      PS1="{${PULUMI_CONFIG_PASSPHRASE}} $PS1"
    fi
  fi
}
PROMPT_COMMAND="aws_profile_info${PROMPT_COMMAND:+; $PROMPT_COMMAND}"

# NOTICE: This file is kept in source control; see
# https://gitlab.com/bennettp123/bash_profile