Sets up your IDF_PATH and PATH for use with ESP32 development. also provides `deactivate` function to cleanup

esp-env.sh

#!/bin/bash

_PRE_IDF_PATH=$PATH
_PRE_IDF_PS1=$PS1

_PWD=$(dirname $(realpath $BASH_SOURCE))

export PATH=$PATH:$_PWD/xtensa-esp32-elf/bin
export IDF_PATH=$_PWD/esp-idf


parse_git_branch () {
  git -C $IDF_PATH symbolic-ref HEAD --short 2>/dev/null
}

parse_git_tag () {
  git -C $IDF_PATH describe --tags 2> /dev/null
}

parse_git_branch_or_tag() {
  local OUT="$(parse_git_branch)"
  if [ -z "$OUT" ]; then
    OUT="$(parse_git_tag)";
  elif [ -z "$OUT" ]; then
    OUT="empty"
  fi
  echo $OUT
}

export PS1="(esp-idf: $(parse_git_branch_or_tag)) "$PS1

deactivate() {
    export PATH=$_PRE_IDF_PATH
    export PS1=$_PRE_IDF_PS1

    unset _PRE_IDF_PATH
    unset _PRE_IDF_PS1
    unset IDF_PATH
    unset -f deactivate # Remove this function
}

unset _PWD