HomeBrew convinience install_or_upgrade CLI func

brew_install_or_upgrade.sh

c46ca3523b5a6da56bb25cd982c58b95_cmd() {
  echo "[INFO] $@" ; sh -c "$@"
}

brew_install_or_upgrade() {
  # shellcheck disable=SC2206
  local tools=($@)
  # shellcheck disable=SC2155
  local -a installed
  echo [INFO] checking installed...
  installed=$(brew list --formula)

  local -a install=()
  local -a upgrade=()

  for tool in "${tools[@]}" ; do
    # shellcheck disable=SC2046
    # shellcheck disable=SC2155
    if [ "$(echo "$installed" | grep -o $tool)" == "$tool" ]; then
      upgrade+=("$tool")
    else
      install+=("$tool")
    fi
  done

  if [[ ${#install[@]} -gt 0 ]]; then
    echo Installing ${install[*]}...
    c46ca3523b5a6da56bb25cd982c58b95_cmd brew install --formula ${install[*]}
  fi

  if [[ ${#upgrade[@]} -gt 0 ]]; then
    echo Upgrading ${upgrade[*]}...
    c46ca3523b5a6da56bb25cd982c58b95_cmd brew upgrade --formula ${upgrade[*]}
  fi
}

echo '[INFO] using brew_install_or_upgrade'