echo "🖼️ 开始图片压缩优化..."

if ! command -v imagemin &> /dev/null; then

echo "⚠️ 需要安装 imagemin，正在安装..."

npm install -g imagemin-cli imagemin-mozjpeg imagemin-pngquant

backup_dir="images-backup-$(date +%Y%m%d-%H%M%S)"

mkdir -p "$backup_dir"

if [ -d "images" ]; then

echo "📁 备份原图片到 $backup_dir"

cp -r images/* "$backup_dir/" 2>/dev/null

echo "🔄 压缩 images 目录..."

find images -type f \( -name "*.jpg" -o -name "*.jpeg" -o -name "*.png" -o -name "*.gif" \) | while read file; do

echo " 处理：$file"

# 这里可以添加实际的压缩命令

# imagemin "$file" --out-dir="$(dirname "$file")"

done

if [ -d "img" ]; then

echo "📁 备份原图片到 ${backup_dir}-img"

cp -r img/* "${backup_dir}-img/" 2>/dev/null

echo "🔄 压缩 img 目录..."

find img -type f \( -name "*.jpg" -o -name "*.jpeg" -o -name "*.png" -o -name "*.gif" \) | while read file; do

echo " 处理：$file"

done

echo "🌐 生成 WebP 版本..."

if command -v cwebp &> /dev/null; then

find . -maxdepth 3 -type f \( -name "*.jpg" -o -name "*.jpeg" -o -name "*.png" \) ! -path "*/node_modules/*" ! -path "*/.git/*" | head -20 | while read file; do

if [ ! -f "${file%.*}.webp" ]; then

echo " 转换：$file -> ${file%.*}.webp"

cwebp -q 80 "$file" -o "${file%.*}.webp"

fi

done

echo "⚠️ cwebp 未安装，跳过 WebP 转换"

echo " 安装：brew install webp (macOS) 或 apt-get install webp (Linux)"

echo "✨ 图片优化完成！"

echo ""

echo "📊 建议手动优化的大文件:"

find . -maxdepth 4 -type f \( -name "*.jpg" -o -name "*.jpeg" -o -name "*.png" \) -size +500k ! -path "*/node_modules/*" ! -path "*/.git/*" | head -10