Bash profile multi-line, conda/git detection support.

.bash_profile

#!/bin/bash

export HISTSIZE=2000000
export HISTFILESIZE=2000000
export CLICOLOR=1
export LSCOLORS=exfxcxdxbxegedabagacad
alias ll="ls --color -latrh $@"
alias ls="ls --color $@"

########## Pretty Prompt ###########
DARKER='\001\033[38;5;234m\002'
DARK='\001\033[38;5;238m\002'
LIGHTER='\001\033[38;5;231m\002'
LIGHT='\001\033[38;5;241m\002'
ORANGE='\001\033[38;5;166m\002'
GREEN='\001\033[38;5;28m\002'
BGREEN='\001\033[38;5;34m\002'
BRED='\001\033[38;5;9m\002'
AQUA='\001\033[38;5;66m\002'
BLUE='\001\033[38;5;67m\002'
RESET='\001\033[0m\002'

# Do exit code prompt change stuff

function exitcode(){
  if [[ $? -ge 1 ]]; then
    printf "${BRED}^ "
  fi
}

# Reasons to return true (fast filesystem)
function is_fast(){
  if [[ -n "${NOGIT}" ]]; then return 1; fi
}

# Do Conda prompt change stuff
function parse_condaprompt(){
  if type conda &>/dev/null; then
    if [[ -n "${CONDA_DEFAULT_ENV}" ]]; then
      printf "${DARK}{conda-env:${AQUA}${CONDA_DEFAULT_ENV}${DARK}}"
    fi
  fi
}

# Do Apptainer promp chnage stuff
function parse_apptainer(){
  if [[ -n "${MOOSE_APPTAINER_GENERATOR_NAME}" ]]; then
    printf "${DARK}{apt:${AQUA}${MOOSE_APPTAINER_GENERATOR_NAME//-x86_64*/}${DARK}}"
  elif [[ -n "${APPTAINER_NAME}" ]]; then
    printf "${DARK}{apt:${AQUA}${APPTAINER_NAME//-x86_64_*/}${DARK}}"
  fi
}

# Add the git branch you are working on if in a git repo
function parse_gitbranch(){
  BRANCH="$(git branch 2>/dev/null | sed -n 's/* \(.*\)/\1/p')"
  if [[ ! -z "${BRANCH}" ]] && [[ "${TOO_SLOW}" != "${BRANCH}" ]]; then
    if is_fast; then
      CHANGES="$(git diff --stat 2>/dev/null)"
    fi
    if [ $? -ge 1 ]; then
      # TODO:
      # save state somehow so above logic is false and does not run again for this branch
      true
    fi
  fi
  if [[ ! -z "${BRANCH}" ]]; then
    printf "${DARK}(br:${BLUE}${BRANCH}${RESET}"
    if [[ ! -z "${CHANGES}" ]]; then
      printf "${DARK}:${BGREEN}+${BRED}-"
    fi
    printf "${DARK})"
  fi
}

function do_date(){
  printf "${DARK}$(date '+%X')"
}

set_prompt() {
  _delta=''
  if [ -n "$last_command_start" ]; then
    elapsed=$(( SECONDS - last_command_start ))
    _delta="${DARKER}⌘Δ${AQUA}${elapsed}${DARKER}s${RESET}"
  else
    _delta="${DARKER}⌘Δ${AQUA}0${DARKER}s${RESET}"
  fi
  last_command_start=$SECONDS
  PS1="
\$(exitcode)\$(do_date) ${_delta} \$(parse_apptainer)\$(parse_condaprompt)\$(parse_gitbranch)
[${GREEN}\u${LIGHTER}@${ORANGE}\h${DARK}][${LIGHTER}\w${DARK}]
$ ${RESET}"
}
shopt -s promptvars
PROMPT_COMMAND='set_prompt'