[NETSDKE2E][Regression]With .NET10 RC2 SDK installed, the size of total published folder for Blazor Wasm with AOT enable is the same with AOT disable.

[vwenchen]

REGRESSION INFO

Worked well on .NET10 RC2 SDK 10.0.100-rc.2.25475.105

REPRO STEPS

Clean machine: Windows 11-x64 (24H2)

1. Install .NET10 RC2 SDK 10.0.100-rc.2.25476.107
2. Install wasm-tools : dotnet workload install wasm-tools
3. Create new blazorWasm
4. Publish blazorWasm then check the size of total published folder
5. Enable AOT by adding <RunAOTCompilation>true</RunAOTCompilation> to .csproj file
6. Publish blazorWasm again then check the size of total published folder
7. Compare the size of two published folders

ACTUAL

The sizes of two published folders are almost the same.

EXPECTED

After enable AOT compilation, the total published folder is larger.

dotnet--info:

.NET SDK:
Version: 10.0.100-rc.2.25476.107
Commit: 145a4df71b
Workload version: 10.0.100-manifests.9a6bd382
MSBuild version: 18.0.0-preview-25476-107+145a4df71

Runtime Environment:
OS Name: Windows
OS Version: 10.0.26100
OS Platform: Windows
RID: win-x64
Base Path: C:\Program Files\dotnet\sdk\10.0.100-rc.2.25476.107\

.NET workloads installed:
[wasm-tools]
Installation Source: SDK 10.0.100-rc.2
Manifest Version: 10.0.100-rc.2.25476.107/10.0.100-rc.2
Manifest Path: C:\Program Files\dotnet\sdk-manifests\10.0.100-rc.2\microsoft.net.workload.mono.toolchain.current\10.0.100-rc.2.25476.107\WorkloadManifest.json
Install Type: Msi

Configured to use workload sets when installing new manifests.
No workload sets are installed. Run "dotnet workload restore" to install a workload set.

Host:
Version: 10.0.0-rc.2.25476.107
Architecture: x64
Commit: 145a4df71b

.NET SDKs installed:
10.0.100-rc.2.25476.107 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
Microsoft.AspNetCore.App 10.0.0-rc.2.25476.107 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.NETCore.App 10.0.0-rc.2.25476.107 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.WindowsDesktop.App 10.0.0-rc.2.25476.107 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

Other architectures found:
None

Environment variables:
Not set

global.json file:
Not found

Learn more:
https://aka.ms/dotnet/info

Download .NET:
https://aka.ms/dotnet/download

[vwenchen]

After enable AOT compilation, it took more time when publish

[balachir]

@lewing can you help investigate if this is a blocking issue for .NET 10 RC2?

[pavelsavara]

@vwenchen
Can you please delete obj and bin folders in P2 and see if that helps ?
If it doesn't help could you please give me binlog for both p1 and p2 builds ?
Also where do I get the windows zip file with 10.0.100-rc.2.25476.107 ?

Thanks!

[vwenchen]

@pavelsavara
We try to delete obj and bin folders then publish again, this issue still repro.
Binlog for P1 and P2 builds: binlog.zip.
We get 10.0.100-rc.2.25476.107 installer from https://release.dot.net/.
Repro machine if you need: 10.158.80.215 (10.0.100-rc.2.25476.107 installed).

[maraf]

Understanding the problem...

From the binlog, it looks like AOT compilation is processed successfully, but ComputeWasmPublishAssets incorrectly promotes dotnet.native.wasm from build instead of taking the AOTed one in ComputeWasmPublishAssets.cs#L286.

It's a regression from #50949.
Before the asset identity didn't contain fingerprint, after it does.
The PR was made to .NET 10 branch directly, main doesn't have the change yet, Wasm.Build.Tests didn't run on it yet.

[lewing]

should be fixed in dotnet/runtime#120268

[vdanche]

This issue is fixed on 10.0.100-rc.2.25502.107