static Dictionary <string, string> ReadMD5File(string fileName)
{
Dictionary <string, string> DicMD5 = new Dictionary <string, string>();
// 如果文件不存在，则直接返回
if (File.Exists(fileName) == false)
{
return(DicMD5);
}
FileMD5Col col = IO.LoadFromFile <FileMD5Col>(fileName);
if (col != null)
{
foreach (FileMD5Item item in col.fileInfo)
{
DicMD5.Add(item.FileName, item.MD5);
}
}
return(DicMD5);
}
public static void Execute(string platform)
{
//FileMD5Item
Dictionary <string, FileMD5Item> DicFileMD5 = new Dictionary <string, FileMD5Item>();
FileMD5Col collection = new FileMD5Col();
MD5CryptoServiceProvider md5Generator = new MD5CryptoServiceProvider();
string dir = Path.Combine(DeviceInfo.PersistRootPath, "AssetBundles/" + platform);
foreach (string filePath in Directory.GetFiles(dir))
{
if (!filePath.EndsWith(".unity3d"))
{
continue;
}
FileStream file = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.Read);
byte[] hash = md5Generator.ComputeHash(file);
string strMD5 = System.BitConverter.ToString(hash);
string strSize = file.Length.ToString();
Debug.Log("======" + strMD5 + "/" + strSize);
file.Close();
string key = filePath.Substring(dir.Length + 1, filePath.Length - dir.Length - 1);
if (DicFileMD5.ContainsKey(key) == false)
{
FileMD5Item item = new FileMD5Item();
item.FileName = key;
item.MD5 = strMD5;
item.Size = strSize;
DicFileMD5.Add(key, item);
}
else
{
Debug.LogWarning("<Two File has the same name> name = " + filePath);
}
}
string savePath = Path.Combine(DeviceInfo.PersistRootPath, "AssetBundles/") + platform + "/VersionNum";
if (!Directory.Exists(savePath))
{
Directory.CreateDirectory(savePath);
}
string oldPath = savePath + "/VersionMD5-old.bytes";
string curPath = savePath + "/VersionMD5.bytes";
// 删除前一版的old数据
if (File.Exists(oldPath))
{
File.Delete(oldPath);
}
// 如果之前的版本存在，则将其名字改为VersionMD5-old.xml
if (File.Exists(curPath))
{
File.Move(curPath, oldPath);
}
// 读取旧版本的MD5, 以防止新版只是做了一部分的AssetBundle
FileMD5Col oldCol = IO.LoadFromFile <FileMD5Col>(oldPath);
if (oldCol != null)
{
foreach (FileMD5Item item in oldCol.fileInfo)
{
if (!DicFileMD5.ContainsKey(item.FileName))
{
DicFileMD5.Add(item.FileName, item);
}
}
}
//保存为VersionMD5
foreach (KeyValuePair <string, FileMD5Item> pair in DicFileMD5)
{
FileMD5Item data = new FileMD5Item(pair.Value.FileName, pair.Value.MD5, pair.Value.Size);
collection.addItem(data);
}
collection.End();
IO.SaveToFile(collection, curPath);
}