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问题描述 / Bug description

更新时提示“无法更新” 尝试重置到官方地址后重新替换为USTC源，提示：

正在添加源:
  winget -> https://mirrors.ustc.edu.cn/winget-source
执行此命令时发生意外错误：
0x8051100f : unknown error

不知是否有人遇到了同样的问题？

最近一次更新的 log:

============ SYNC STARTED AT 2023-09-28 19:05:00 ============
*********** 8< ***********
[2023-09-28T11:05:01.074Z][INFO] start syncing with https://cdn.winget.microsoft.com/cache
[2023-09-28T11:05:01.671Z][INFO] downloading from https://cdn.winget.microsoft.com/cache/source.msix
[2023-09-28T11:05:01.853Z][ERROR] Can't find end of central directory : is this a zip file ? If it is, see https://stuk.github.io/jszip/documentation/howto/read_zip.html
============ SYNC FINISHED AT 2023-09-28 19:05:01 ============

尝试重新同步后正常，出错时该文件不到 10K。没有查看错误的 source.msix 具体的内容，目前怀疑可能是遇到了 40x/50x 的错误，然后可能下载到了报错的 HTML 之类的东西。

Cc @stevapple

感谢修复，辛苦了！（我居然忘了比对两边的文件信息:thinking:

2023年10月11日02:38:20 发现 https://mirrors.ustc.edu.cn/winget-source/source.msix 文件大小为0 https://mirrors.ustc.edu.cn/status/#sync 页面显示同步出错

============ SYNC STARTED AT 2023-10-10 19:05:00 ============
*********** 8< ***********
[2023-10-10T11:05:01.078Z][INFO] start syncing with https://cdn.winget.microsoft.com/cache
[2023-10-10T11:05:01.915Z][ERROR] End of data reached (data length = 0, asked index = 4). Corrupted zip ?
============ SYNC FINISHED AT 2023-10-10 19:05:01 ============

现在加了 retry，照理如果是网络问题（连不上或者返回 4xx/5xx）的话日志里会有重试的 warning。

疑似是上游问题，未改源也遇到了无法更新（

现在应该解决了？

现在应该解决了？

我当时手工同步之后看起来是正常的，这个似乎也是偶发的问题。

目测是上游问题，可以考虑在解压 zip 出错的情况下暂时不写入 source.msix？

2024-06-29 03:42:19.285 [CORE] Getting upstream file from remote: https://mirrors.ustc.edu.cn/winget-source/manifests/m/Microsoft/EdgeWebView2Runtime/126.0.2592.81/3c33
2024-06-29 03:42:19.285 [CORE] WinINet downloading from url: https://mirrors.ustc.edu.cn/winget-source/manifests/m/Microsoft/EdgeWebView2Runtime/126.0.2592.81/3c33
2024-06-29 03:42:19.342 [CORE] Download request failed. Returned status: 404
2024-06-29 03:42:19.342 [FAIL] C:\__w\1\s\external\pkg\src\AppInstallerCommonCore\Downloader.cpp(167)\WindowsPackageManager.dll!00007FFBE8058541: (caller: 00007FFBE82FE68F) Exception(2) tid(23e0) 80190194 未找到(404)。
    Msg:[Download request status is not success.] 

2024-06-29 03:42:19.342 [CORE] Getting upstream file failed, waiting a bit and retrying: https://mirrors.ustc.edu.cn/winget-source/manifests/m/Microsoft/EdgeWebView2Runtime/126.0.2592.81/3c33
2024-06-29 03:42:19.847 [CORE] WinINet downloading from url: https://mirrors.ustc.edu.cn/winget-source/manifests/m/Microsoft/EdgeWebView2Runtime/126.0.2592.81/3c33
2024-06-29 03:42:19.864 [CORE] Download request failed. Returned status: 404
2024-06-29 03:42:19.864 [FAIL] C:\__w\1\s\external\pkg\src\AppInstallerCommonCore\Downloader.cpp(167)\WindowsPackageManager.dll!00007FFBE8058541: (caller: 00007FFBE82FE68F) Exception(3) tid(23e0) 80190194 未找到(404)。
    Msg:[Download request status is not success.] 

2024-06-29 03:42:19.864 [FAIL] C:\__w\1\s\external\pkg\src\AppInstallerCommonCore\FileCache.cpp(228)\WindowsPackageManager.dll!00007FFBE833465F: (caller: 00007FFBE82FDBE7) LogHr(2) tid(23e0) 80190194 未找到(404)。
    Msg:[GetUpstreamFile failed on source: https://mirrors.ustc.edu.cn/winget-source -- C:\__w\1\s\external\pkg\src\AppInstallerCommonCore\Downloader.cpp(167)\WindowsPackageManager.dll!00007FFBE8058541: (caller: 00007FFBE82FE68F) Exception(3) tid(23e0) 80190194 未找到(404)。
    Msg:[Download request status is not success.] 
] 

2024-06-29 03:42:19.864 [CLI ] Caught wil::ResultException: C:\__w\1\s\external\pkg\src\AppInstallerCommonCore\Downloader.cpp(167)\WindowsPackageManager.dll!00007FFBE8058541: (caller: 00007FFBE82FE68F) Exception(3) tid(23e0) 80190194 δ ҵ (404)  
    Msg:[Download request status is not success.] 

似乎又出了点问题？请各位同志抽空排查一下，谢谢！

2024年6月29日14:22:48 测试已恢复正常

似乎又出了点问题？请各位同志抽空排查一下，谢谢！

有可能是同步过程中会出错，现在看起来是正常的。