Bash script for optimizing logo in public folder of app

optimize-logo.sh

#!/bin/bash

# Script to optimize logo.png for web performance
# This script requires ImageMagick or similar tools

LOGO_FILE="public/logo.png"
OUTPUT_FILE="public/logo-optimized.png"

echo "Optimizing logo.png for web performance..."

# Check if ImageMagick is installed
if command -v convert &> /dev/null; then
    echo "Using ImageMagick to optimize logo..."
    
    # Resize to max 192x192 (largest needed size)
    # Compress with quality 85
    # Strip metadata
    convert "$LOGO_FILE" \
        -resize 192x192\> \
        -quality 85 \
        -strip \
        "$OUTPUT_FILE"
    
    # Get file sizes
    ORIGINAL_SIZE=$(ls -lh "$LOGO_FILE" | awk '{print $5}')
    OPTIMIZED_SIZE=$(ls -lh "$OUTPUT_FILE" | awk '{print $5}')
    
    echo "✅ Optimization complete!"
    echo "Original: $ORIGINAL_SIZE"
    echo "Optimized: $OPTIMIZED_SIZE"
    echo ""
    echo "Next steps:"
    echo "1. Review logo-optimized.png"
    echo "2. If satisfied, replace logo.png: mv public/logo-optimized.png public/logo.png"
    echo "3. Or use online tools: https://tinypng.com/ or https://squoosh.app/"
    
elif command -v sips &> /dev/null; then
    # macOS built-in tool
    echo "Using macOS sips to optimize logo..."
    sips -Z 192 -s format png "$LOGO_FILE" --out "$OUTPUT_FILE"
    
    ORIGINAL_SIZE=$(ls -lh "$LOGO_FILE" | awk '{print $5}')
    OPTIMIZED_SIZE=$(ls -lh "$OUTPUT_FILE" | awk '{print $5}')
    
    echo "✅ Optimization complete!"
    echo "Original: $ORIGINAL_SIZE"
    echo "Optimized: $OPTIMIZED_SIZE"
    echo ""
    echo "⚠️  Note: sips doesn't compress as well. Consider using online tools:"
    echo "   - https://tinypng.com/"
    echo "   - https://squoosh.app/"
    echo "   Target: <50KB file size"
else
    echo "❌ ImageMagick or sips not found."
    echo ""
    echo "Please use one of these methods to optimize logo.png:"
    echo ""
    echo "Option 1: Online Tools (Recommended)"
    echo "  1. Go to https://tinypng.com/ or https://squoosh.app/"
    echo "  2. Upload public/logo.png"
    echo "  3. Resize to max 192x192px"
    echo "  4. Download and replace public/logo.png"
    echo "  5. Target: <50KB file size"
    echo ""
    echo "Option 2: Install ImageMagick"
    echo "  macOS: brew install imagemagick"
    echo "  Linux: sudo apt-get install imagemagick"
    echo "  Then run this script again"
    echo ""
    echo "Option 3: Manual optimization"
    echo "  - Open logo.png in image editor"
    echo "  - Resize to 192x192px maximum"
    echo "  - Export as PNG with compression"
    echo "  - Target: <50KB file size"
fi