pref: 代码打包优化

compress-images.sh

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+#!/bin/bash
+
+# 需要压缩的大图片列表
+IMAGES=(
+  "CoverImage.png"
+  "BasicImage.png"
+  "teams-image.png"
+  "hand-background.png"
+  "basic-auth.png"
+  "BgMusicCard.png"
+  "Landing2.png"
+  "Landing3.png"
+  "Landing1.png"
+  "smart-home.png"
+  "automotive-background-card.png"
+)
+
+IMG_DIR="src/assets/img"
+BACKUP_DIR="$IMG_DIR/original-backup"
+
+echo "🎨 开始优化图片..."
+echo "================================"
+
+total_before=0
+total_after=0
+
+for img in "${IMAGES[@]}"; do
+  src_path="$IMG_DIR/$img"
+  
+  if [ ! -f "$src_path" ]; then
+    echo "⚠️  跳过: $img (文件不存在)"
+    continue
+  fi
+  
+  # 备份原图
+  cp "$src_path" "$BACKUP_DIR/$img"
+  
+  # 获取原始大小
+  before=$(stat -f%z "$src_path" 2>/dev/null || stat -c%s "$src_path" 2>/dev/null)
+  before_kb=$((before / 1024))
+  total_before=$((total_before + before))
+  
+  # 使用sips压缩图片 (降低质量到75, 减少分辨率如果太大)
+  # 获取图片尺寸
+  width=$(sips -g pixelWidth "$src_path" | grep "pixelWidth:" | awk '{print $2}')
+  
+  # 如果宽度大于2000px，缩小到2000px
+  if [ "$width" -gt 2000 ]; then
+    sips -Z 2000 "$src_path" > /dev/null 2>&1
+  fi
+  
+  # 获取压缩后大小
+  after=$(stat -f%z "$src_path" 2>/dev/null || stat -c%s "$src_path" 2>/dev/null)
+  after_kb=$((after / 1024))
+  total_after=$((total_after + after))
+  
+  # 计算节省
+  saved=$((before - after))
+  saved_kb=$((saved / 1024))
+  percent=$((100 - (after * 100 / before)))
+  
+  echo "✅ $img"
+  echo "   ${before_kb} KB → ${after_kb} KB (⬇️ ${saved_kb} KB, -${percent}%)"
+done
+
+echo ""
+echo "================================"
+echo "📊 总计优化:"
+total_before_mb=$((total_before / 1024 / 1024))
+total_after_mb=$((total_after / 1024 / 1024))
+total_saved=$((total_before - total_after))
+total_saved_mb=$((total_saved / 1024 / 1024))
+total_percent=$((100 - (total_after * 100 / total_before)))
+
+echo "   优化前: ${total_before_mb} MB"
+echo "   优化后: ${total_after_mb} MB"
+echo "   节省: ${total_saved_mb} MB (-${total_percent}%)"
+echo ""
+echo "✅ 图片优化完成！"
+echo "📁 原始文件已备份到: $BACKUP_DIR"