Setting up a cron job or adding an alias to your shell profile for a shell script that mimics the exact experience of running `brew upgrade` in Homebrew to upgrade all Dart global packages is super convenient!

update-dart-globals.sh

#!/usr/bin/env bash

# ANSI codes
BOLD="\033[1m"
GREEN="\033[32m"
YELLOW="\033[33m"
RED="\033[31m"
BLUE="\033[34m"
GRAY="\033[90m"
RESET="\033[0m"

echo -e "${BOLD}==> Updating Dart pub global packages...${RESET}"

dart pub global list | awk '{print $1}' | while read -r pkg; do
  [ -z "$pkg" ] && continue

  echo -e "${BLUE}==>${RESET} Checking ${BOLD}$pkg${RESET}"

  output="$(dart pub global activate "$pkg" 2>&1)"
  exit_code=$?

  if [ $exit_code -ne 0 ]; then
    echo -e "  ${RED}✗ Failed:${RESET} $pkg"
    printf '%s\n' "$output"
    continue
  fi

  if echo "$output" | grep -q "already activated at newest available version"; then
    echo -e "  ${GRAY}${pkg} is already up-to-date.${RESET}"
  else
    printf '%s\n' "$output"
    echo -e "  ${GREEN}✓ Updated:${RESET} $pkg"
  fi

  echo
done

echo -e "${GREEN}✓${RESET} All Dart global packages are up-to-date."

I love it