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