welcome shell script file to be ran on mac first wake

welcome.sh

#!/bin/sh
#alias welcome='sh -x welcome.sh'

# --- Colors ---
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
CYAN='\033[0;36m'
NC='\033[0m' # No Color

# --- Dry-run support ---
DRY_RUN=false
if [ "$1" = "--dry-run" ] || [ "$1" = "-n" ]; then
    DRY_RUN=true
    echo "${YELLOW}=== DRY RUN MODE — nothing will be deleted ===${NC}"
fi

# Helper: only execute destructive commands if not in dry-run mode
run() {
    if [ "$DRY_RUN" = true ]; then
        echo "${YELLOW}[dry-run] $*${NC}"
    else
        "$@"
    fi
}

# --- Timing & Disk Space ---
START_TIME=$(date +%s)

echo "${GREEN}=== Starting System Cleanup ===${NC}"
echo "${CYAN}Disk space before cleanup:${NC}"
df -h / | tail -1

# ============================================================
# Package Manager Updates
# ============================================================

# Ruby gems cleanup
echo "\n${GREEN}--- Ruby Gems ---${NC}"
echo "Updating and cleaning Ruby gems..."
gem update --verbose
gem cleanup

# Homebrew cleanup
echo "\n${GREEN}--- Homebrew ---${NC}"
echo "Updating and cleaning Homebrew..."
brew update --verbose
brew upgrade --verbose
echo "Homebrew cache size before cleanup:"
du -hs ~/Library/Caches/Homebrew/ 2>/dev/null || echo "No Homebrew cache found"
brew cleanup -s
brew autoremove
brew doctor 2>/dev/null || echo "brew doctor found issues (review above)"

# Update Claude Code CLI
echo "\n${GREEN}--- Claude Code CLI ---${NC}"
echo "Updating Claude Code CLI..."
claude update 2>/dev/null || echo "Claude CLI update failed"
claude --version 2>/dev/null || echo "Claude CLI not installed"

# npm/yarn cache cleanup
echo "\n${GREEN}--- npm / yarn ---${NC}"
echo "Cleaning npm cache..."
npm cache verify
run npm cache clean --force 2>/dev/null || echo "npm cache clean failed"
echo "Cleaning yarn cache..."
run yarn cache clean 2>/dev/null || echo "yarn not installed or cache clean failed"

# pip cache cleanup
echo "\n${GREEN}--- pip ---${NC}"
echo "Cleaning pip cache..."
run pip cache purge 2>/dev/null || echo "pip cache clean skipped"
run pip3 cache purge 2>/dev/null || echo "pip3 cache clean skipped"

# ============================================================
# Xcode Cleanup
# ============================================================

echo "\n${GREEN}--- Xcode ---${NC}"

# DerivedData
echo "Cleaning Xcode DerivedData..."
du -hs ~/Library/Developer/Xcode/DerivedData/ 2>/dev/null || echo "No DerivedData found"
run rm -rf ~/Library/Developer/Xcode/DerivedData/*

# Archives older than 30 days
echo "Cleaning Xcode Archives (older than 30 days)..."
du -hs ~/Library/Developer/Xcode/Archives/ 2>/dev/null || echo "No Archives found"
run find ~/Library/Developer/Xcode/Archives -mindepth 1 -maxdepth 1 -mtime +30 -exec rm -rf {} + 2>/dev/null

# Xcode module cache & app cache
echo "Cleaning Xcode module cache..."
run rm -rf "$(getconf DARWIN_USER_CACHE_DIR)/org.llvm.clang/ModuleCache" 2>/dev/null
run rm -rf ~/Library/Caches/com.apple.dt.Xcode/* 2>/dev/null

# iOS DeviceSupport cleanup (old iOS versions)
echo "Cleaning iOS DeviceSupport (older than 60 days)..."
du -hs ~/Library/Developer/Xcode/iOS\ DeviceSupport/ 2>/dev/null || echo "No iOS DeviceSupport found"
run find ~/Library/Developer/Xcode/iOS\ DeviceSupport -mindepth 1 -maxdepth 1 -mtime +60 -exec rm -rf {} + 2>/dev/null

# iOS Simulator cleanup
echo "Cleaning iOS Simulators..."
run xcrun simctl delete unavailable 2>/dev/null
du -hs ~/Library/Developer/CoreSimulator/Caches/ 2>/dev/null || echo "No Simulator caches found"
run rm -rf ~/Library/Developer/CoreSimulator/Caches/* 2>/dev/null

# Swift Package Manager cache
echo "Cleaning SPM cache..."
du -hs ~/Library/Caches/org.swift.swiftpm/ 2>/dev/null || echo "No SPM cache found"
run rm -rf ~/Library/Caches/org.swift.swiftpm/ 2>/dev/null

# CocoaPods cache cleanup
echo "\n${GREEN}--- CocoaPods ---${NC}"
echo "Cleaning CocoaPods cache..."
du -hs ~/Library/Caches/CocoaPods/ 2>/dev/null || echo "No CocoaPods cache found"
run pod cache clean --all 2>/dev/null || echo "CocoaPods not installed"

# Carthage cache cleanup
echo "Cleaning Carthage cache..."
du -hs ~/Library/Caches/org.carthage.CarthageKit/ 2>/dev/null || echo "No Carthage cache found"
run rm -rf ~/Library/Caches/org.carthage.CarthageKit/ 2>/dev/null

# ============================================================
# Mobile / Cross-platform Cleanup
# ============================================================

# Flutter cleanup
echo "\n${GREEN}--- Flutter ---${NC}"
echo "Cleaning Flutter build caches..."
du -hs ~/Programming/100ms-flutter/example/build/ 2>/dev/null || echo "No Flutter build found"
run rm -rf ~/Programming/100ms-flutter/example/build/
run flutter clean 2>/dev/null || echo "Flutter clean failed"

# React Native / Android cleanup
echo "\n${GREEN}--- React Native / Android ---${NC}"
echo "Cleaning React Native Android build..."
du -hs ~/Programming/react-native-hms/example/android/build 2>/dev/null || echo "No Android build found"
run rm -rf ~/Programming/react-native-hms/example/android/build
run rm -rf ~/Programming/react-native-hms/example/android/.gradle 2>/dev/null
run rm -rf ~/Programming/react-native-hms/example/ios/build 2>/dev/null
run rm -rf ~/Programming/react-native-hms/example/ios/Pods 2>/dev/null

# Global gradle cache cleanup
echo "\n${GREEN}--- Gradle ---${NC}"
echo "Cleaning Gradle cache (older than 30 days)..."
du -hs ~/.gradle/caches/ 2>/dev/null || echo "No Gradle cache found"
run find ~/.gradle/caches -mindepth 1 -mtime +30 -exec rm -rf {} + 2>/dev/null

# ============================================================
# Docker Cleanup
# ============================================================

echo "\n${GREEN}--- Docker ---${NC}"
echo "Cleaning Docker..."
run docker system prune -f 2>/dev/null || echo "Docker not running"

# ============================================================
# System Cleanup
# ============================================================

echo "\n${GREEN}--- System ---${NC}"

# DNS cache flush
echo "Flushing DNS cache..."
run sudo dscacheutil -flushcache 2>/dev/null
run sudo killall -HUP mDNSResponder 2>/dev/null

# System & diagnostic logs
echo "Cleaning system logs..."
run sudo rm -rf /private/var/log/asl/*.asl 2>/dev/null
run sudo rm -rf /Library/Logs/DiagnosticReports/* 2>/dev/null
run rm -rf ~/Library/Logs/DiagnosticReports/* 2>/dev/null

# Browser cache (Chrome)
echo "Cleaning Chrome cache..."
du -hs ~/Library/Caches/Google/Chrome/ 2>/dev/null || echo "No Chrome cache found"
run rm -rf ~/Library/Caches/Google/Chrome/ 2>/dev/null

# macOS system caches (be careful with these)
# echo "Cleaning macOS caches..."
# Clean user cache files older than 7 days
# find ~/Library/Caches -type f -mtime +7 -exec rm {} \; 2>/dev/null
# Clean Downloads folder items older than 30 days
# echo "Old Downloads (30+ days):"
# find ~/Downloads -mtime +30 -type f 2>/dev/null | head -20
# Uncomment to auto-delete old downloads
# find ~/Downloads -mtime +30 -type f -exec rm {} \; 2>/dev/null

# Clean Trash (optional)
echo "Trash size:"
du -hs ~/.Trash/ 2>/dev/null || echo "Trash is empty"
# Uncomment to empty trash
# rm -rf ~/.Trash/* 2>/dev/null

# Purge inactive memory
echo "Purging inactive memory..."
run sudo purge 2>/dev/null

# ============================================================
# Summary
# ============================================================

END_TIME=$(date +%s)
ELAPSED=$((END_TIME - START_TIME))

echo "\n${GREEN}=== Cleanup Complete ===${NC}"
echo "${CYAN}Disk space after cleanup:${NC}"
df -h / | tail -1
echo "${CYAN}Total time: ${ELAPSED} seconds${NC}"