Bash script to update brew packages and clean logs/cache on MacOS

updateandclean.sh

#!/bin/bash

# List of directories to clean
directories=(
    # Caches
    "/Library/Caches:Yes"
    "$HOME/Library/Caches:No"
    # Logs
    "$HOME/Library/Logs:No"
    "/var/log:Yes"
    "/System/Library/Caches:Yes"
    # Var files
    "/private/var/folders:Yes"
    # Crash reports
    "/Library/Application Support/CrashReporter:Yes"
)

# Function to prompt for user confirmation
confirm() {
    read -p $'\n❓ Do you want to clean '"$1"?' (y/n): ' choice
    case "$choice" in
        y|Y ) return 0;;
        n|N ) return 1;;
        * ) confirm "$1";;
    esac
}

# Function to prompt for admin password if necessary
ask_admin_password() {
    sudo -v
    while true; do sudo -n true; sleep 60; kill -0 "$$" || exit; done 2>/dev/null &
}

# Function to check if Homebrew is installed
check_homebrew() {
    if ! command -v brew >/dev/null 2>&1; then
        echo "❌ Homebrew is not installed. Skipping Homebrew commands."
        return 1
    fi
    return 0
}

# Function to clean Homebrew unused dependencies
clean_homebrew() {
    ask_admin_password
    echo "🧹 Cleaning Homebrew..."
    brew cleanup
    echo "✨ Homebrew cleaned."
}

# Function to update Homebrew package lists and update packages
update_homebrew() {
    echo "🔄 Updating Homebrew package lists..."
    brew update
    echo "✨ Homebrew package lists updated."
    
    echo "🔄 Updating Homebrew packages..."
    brew upgrade
    echo "✨ Homebrew packages updated."
}

# Function to update Homebrew casks
update_casks() {
    echo "🔄 Updating Homebrew casks..."
    brew upgrade --cask
    echo "✨ Homebrew casks updated."
}

# Function to clean directories
clean_directories() {
    date > removed.txt
    for ((i=0; i<${#directories[@]}; i++)); do
        dir_info="${directories[$i]}"
        dir="${dir_info%%:*}"
        sudo_required="${dir_info##*:}"
        current_dir_name="${dir%%:*}"
        current_dir=$((i + 1))
        
        if [[ -d "$dir" ]]; then
            if confirm "$dir"; then
                echo "🔄 Cleaning $dir"
                if [[ "$sudo_required" == "Yes" ]]; then
                    ask_admin_password
                    sudo rm -rfv "$dir"/* >> removed.txt 2> /dev/null
                else
                    rm -rfv "$dir"/* >> removed.txt 2> /dev/null
                fi
                echo "✅ Cleaned $dir"
            else
                echo "⏭️  Skipped $dir"
            fi
        else
            echo "❌ Directory not found: $dir"
        fi
    done
}


# # Update Homebrew if installed
if check_homebrew; then
echo -e "\n🍺 UPDATING HOMEBREW\n"
update_homebrew &
pid=$!
wait $pid
echo -e "\n✨ HOMEBREW UPDATED\n"
fi

# # Update Homebrew casks if installed
if check_homebrew; then
echo -e "\n🍺 UPDATING HOMEBREW CASKS\n"
update_casks &
pid=$!
wait $pid
echo -e "\n✨ HOMEBREW CASKS UPDATED\n"
fi

# # Clean Homebrew if installed
if check_homebrew; then
echo -e "\n🍺 CLEANING HOMEBREW\n"
clean_homebrew &
pid=$!
wait $pid
echo -e "\n✨ HOMEBREW CLEANED\n"
fi

# Run cleaning
echo -e "\n🧽 CLEANING DIRECTORIES"
clean_directories
echo -e "\n✨ DIRECTORIES CLEANED"

echo -e "\nℹ️  Paths of removed files are saved to removed.txt"