// 5.比较文件数据生成下载列表
private bool CheckDiff()
{
// Debug.Log("Updater.CheckDiff");
AssetIndexFile oldAssets = AssetIndexData.Instance().GetIndex();
// 本地比服务器版本还新, 跳过更新步骤
if (oldAssets.GetVersion() > _latest.GetVersion())
{
return(true);
}
// 检查是否大版本更新
if (!VersionHelper.IsCompatible(oldAssets.GetVersion(), _latest.GetVersion()))
{
return(false);
}
// 文件比较
var allAssets = _latest.FetchAll();
_updateList = new List <AssetInfo>(allAssets.Count);
_updateSize = 0;
foreach (AssetInfo asset in allAssets)
{
if (asset == null)
{
continue;
}
FileInfo fi = new FileInfo(asset.GetWritePath());
// 检查是否匹配
AssetInfo old = oldAssets.GetAssetInfo(asset.hash);
if (old == null || old.IsDiff(asset) || old.IsDiff(fi))
{
_updateList.Add(asset);
_updateSize += asset.size;
}
}
return(true);
}
