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Make the build system works on Unix #1489

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Make the build system works on Unix#1489
@MangelMaxime

Description

@MangelMaxime
MangelMaxime
opened on Jul 8, 2025

Hello,

instead of reporting #1488 I wanted to try to contribute to WebSharper like I did in the past.

However, I am facing a big issue.

It seems like WebShaper cannot be contributed from Unix in its current state.

Issues I am facing:

Running /build.sh on a fresh repo doesn't work

❯ ./build.sh 
Tool 'paket' (version '9.0.2') was restored. Available commands: paket

Restore was successful.
Paket version 9.0.2+a9b12aaeb8d8d5e47a415a3442b7920ed04e98e0
Updating group wsbuild in /home/mmangel/Workspaces/Github/dotnet-websharper/core/string-builder-improvements/paket.dependencies
Resolving dependency graph for group wsbuild...
Total time taken: 4 milliseconds
Could not execute because the specified command or file was not found.
Possible reasons for this include:
  * You misspelled a built-in dotnet command.
  * You intended to execute a .NET program, but dotnet-fake does not exist.
  * You intended to run a global tool, but a dotnet-prefixed executable with this name could not be found on the PATH.

A workaround is to run dotnet tool install fake-cli but then when running it I get this error:

Tool 'paket' (version '9.0.2') was restored. Available commands: paket
Tool 'fake-cli' (version '6.1.3') was restored. Available commands: fake

Restore was successful.
Paket version 9.0.2+a9b12aaeb8d8d5e47a415a3442b7920ed04e98e0
Updating group wsbuild in /home/mmangel/Workspaces/Github/dotnet-websharper/core/string-builder-improvements/paket.dependencies
Resolving dependency graph for group wsbuild...
Total time taken: 2 milliseconds
Consider adding your dependencies via `#r` dependencies, for example add '#r "paket: nuget FSharp.Core //"'.
See https://fake.build/guide/fake-modules.html for details. 
If you know what you are doing you can silence this warning by setting the environment variable 'FAKE_ALLOW_NO_DEPENDENCIES' to 'true'
Updating group Main in /home/mmangel/Workspaces/Github/dotnet-websharper/core/string-builder-improvements/.fake/build.fsx/paket.dependencies
Resolving dependency graph...
Updated packages:
  Group: Main
    - FSharp.Core: 9.0.300 (added)
Starting full restore process.
Starting task 'DotNet:version': running dotnet --version
9.0.203
Finished (Success) 'DotNet:version' in 00:00:00.1544063
Starting task 'DotNet:version': running dotnet --version
9.0.106
Finished (Success) 'DotNet:version' in 00:00:00.0761988
No exact match of product releases 9.0.203 found.
No product release found for 9.0.203. Maybe a pre-release? Returning all the versions.
No exact match of product releases 9.0.106 found.
No product release found for 9.0.106. Maybe a pre-release? Returning all the versions.
Could not load types of compiled script:
 - Could not load file or assembly 'Fake.DotNet.Cli, Version=6.1.3.0, Culture=neutral, PublicKeyToken=null'. General Exception (0x80131500)
 - Could not load file or assembly 'Mono.Cecil, Version=0.11.3.0, Culture=neutral, PublicKeyToken=50cebf1cceb9d05e'. General Exception (0x80131500)
 - Could not load file or assembly 'Fake.JavaScript.Npm, Version=6.1.3.0, Culture=neutral, PublicKeyToken=null'. General Exception (0x80131500)
 - Could not load file or assembly 'Fake.JavaScript.Npm, Version=6.1.3.0, Culture=neutral, PublicKeyToken=null'. The system cannot find the file specified.

 - Could not load file or assembly 'Fake.Core.Target, Version=6.1.3.0, Culture=neutral, PublicKeyToken=null'. General Exception (0x80131500)
 - Could not load file or assembly 'Paket.Core, Version=8.1.0.0, Culture=neutral, PublicKeyToken=null'. General Exception (0x80131500)
 - Could not load file or assembly 'Fake.Core.Target, Version=6.1.3.0, Culture=neutral, PublicKeyToken=null'. The system cannot find the file specified.

[MORE SIMILAR WARNING]

 - Could not load file or assembly 'Fake.Core.Target, Version=6.1.3.0, Culture=neutral, PublicKeyToken=null'. The system cannot find the file specified.

Script reported an error:
-> FileNotFoundException: Could not load file or assembly 'Fake.Core.Target, Version=6.1.3.0, Culture=neutral, PublicKeyToken=null'. The system cannot find the file specified.
   
Hint: To further diagnose the problem you can run fake in verbose mode `fake -v run ...` or set the 'FAKE_DETAILED_ERRORS' environment variable to 'true'
Warning: Paket resolved a FSharp.Core with version '9.0.0.0', but fake runs with a version of '8.0.0.0'. This is not supported.
Please either lock the version via 'nuget FSharp.Core <nuget-version>' or upgrade fake.
Read https://github.com/fsharp/FAKE/issues/2001 for details.
Hint: The fake-runner has not been updated for at least 6 months. Please consider upgrading to get latest bugfixes, improved suggestions and F# features.
Performance:
 - Cli parsing: 112 milliseconds
 - Packages: 727 milliseconds
   - Resolver: 559 milliseconds (1 runs)
      - Runtime: 32 milliseconds
      - Blocked (retrieving package details): 65 milliseconds (1 times)
      - Blocked (retrieving package versions): 461 milliseconds (1 times)
   - Disk IO: 17 milliseconds
   - Average Request Time: 155 milliseconds
   - Number of Requests: 2
   - Creating Runtime Graph: 1 millisecond
   - Retrieve Assembly List: 640 milliseconds
 - Script compiling: 6 seconds
 - Script analyzing: 145 milliseconds
 - Script running: 0 milliseconds
 - Script cleanup: 0 milliseconds
 - Runtime: 7 seconds

So I tried to skip using FAKE by running dotnet fsi build.fsx but now it is complaining because it seems like some project are Windows specifics...

❯ dotnet fsi build.fsx 
.> "git" tag --merged (In: false, Out: true, Err: true)
.> "git" rev-parse HEAD (In: false, Out: true, Err: true)
938f3080e496379dfd35d2652835fb52a0460021
.> "git" rev-parse refs/tags/10.0.0.581-beta1 (In: false, Out: true, Err: true)
a6001be735e573fdf3bf8ef75f874cb0c2229d4e
==== Building project v10.0.0.582-beta1 ====
run Build
Building project with version: LocalBuild
Shortened DependencyGraph for Target Build:
<== Build
   <== Prepare
      <== WS-GenAssemblyInfo
         <== WS-Update
            <== WS-Clean
               <== WS-Stop
      <== WS-Restore

The running order is:
Group - 1
  - WS-Stop
Group - 2
  - WS-Clean
Group - 3
  - WS-Update
Group - 4
  - WS-Restore
  - WS-GenAssemblyInfo
Group - 5
  - Prepare
Group - 6
  - Build
Starting target 'WS-Stop'
Finished (Success) 'WS-Stop' in 00:00:00.0126667
Starting target 'WS-Clean'
Finished (Success) 'WS-Clean' in 00:00:00.0096616
Starting target 'WS-Update'
/home/mmangel/Workspaces/Github/dotnet-websharper/core/string-builder-improvements> "dotnet"  paket update -g test (In: false, Out: false, Err: false)
Paket version 9.0.2+a9b12aaeb8d8d5e47a415a3442b7920ed04e98e0
Updating group test in /home/mmangel/Workspaces/Github/dotnet-websharper/core/string-builder-improvements/paket.dependencies
Resolving dependency graph for group test...
Installing into projects:
Created dependency graph (210 packages in total)
F# project /home/mmangel/Workspaces/Github/dotnet-websharper/core/string-builder-improvements/src/sitelets/WebSharper.AspNetCore/WebSharper.AspNetCore.fsproj does not reference FSharp.Core.
Package FSharp.Core is referenced through multiple groups in /home/mmangel/Workspaces/Github/dotnet-websharper/core/string-builder-improvements/tests/WebSharper.Compiler.FSharp.Tests/WebSharper.Compiler.FSharp.Tests.fsproj (inspect lockfile for details). To resolve this warning use a single group for this project to get a unified dependency resolution or use conditions on the groups.
Package System.Buffers is referenced through multiple groups in /home/mmangel/Workspaces/Github/dotnet-websharper/core/string-builder-improvements/tests/WebSharper.Compiler.FSharp.Tests/WebSharper.Compiler.FSharp.Tests.fsproj (inspect lockfile for details). To resolve this warning use a single group for this project to get a unified dependency resolution or use conditions on the groups.
Package System.Collections.Immutable is referenced through multiple groups in /home/mmangel/Workspaces/Github/dotnet-websharper/core/string-builder-improvements/tests/WebSharper.Compiler.FSharp.Tests/WebSharper.Compiler.FSharp.Tests.fsproj (inspect lockfile for details). To resolve this warning use a single group for this project to get a unified dependency resolution or use conditions on the groups.
Package System.Memory is referenced through multiple groups in /home/mmangel/Workspaces/Github/dotnet-websharper/core/string-builder-improvements/tests/WebSharper.Compiler.FSharp.Tests/WebSharper.Compiler.FSharp.Tests.fsproj (inspect lockfile for details). To resolve this warning use a single group for this project to get a unified dependency resolution or use conditions on the groups.
Package System.Numerics.Vectors is referenced through multiple groups in /home/mmangel/Workspaces/Github/dotnet-websharper/core/string-builder-improvements/tests/WebSharper.Compiler.FSharp.Tests/WebSharper.Compiler.FSharp.Tests.fsproj (inspect lockfile for details). To resolve this warning use a single group for this project to get a unified dependency resolution or use conditions on the groups.
Package System.Reflection.Metadata is referenced through multiple groups in /home/mmangel/Workspaces/Github/dotnet-websharper/core/string-builder-improvements/tests/WebSharper.Compiler.FSharp.Tests/WebSharper.Compiler.FSharp.Tests.fsproj (inspect lockfile for details). To resolve this warning use a single group for this project to get a unified dependency resolution or use conditions on the groups.
Package System.Runtime.CompilerServices.Unsafe is referenced through multiple groups in /home/mmangel/Workspaces/Github/dotnet-websharper/core/string-builder-improvements/tests/WebSharper.Compiler.FSharp.Tests/WebSharper.Compiler.FSharp.Tests.fsproj (inspect lockfile for details). To resolve this warning use a single group for this project to get a unified dependency resolution or use conditions on the groups.
Package FSharp.Core is referenced through multiple groups in /home/mmangel/Workspaces/Github/dotnet-websharper/core/string-builder-improvements/tests/WebSharper.Core.JavaScript.Tests/WebSharper.Core.JavaScript.Tests.fsproj (inspect lockfile for details). To resolve this warning use a single group for this project to get a unified dependency resolution or use conditions on the groups.
Calling dotnet restore on WebSharper.Compiler.sln
/home/mmangel/.dotnet/sdk/9.0.203/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.Sdk.FrameworkReferenceResolution.targets(107,5): error NETSDK1100: To build a project targeting Windows on this operating system, set the EnableWindowsTargeting property to true.

Restore failed with 1 error(s) in 3.9s
Total time taken: 1 second
Paket failed with
-> dotnet restore "WebSharper.Compiler.sln" failed
Finished (Failed) 'WS-Update' in 00:00:07.0757772

---------------------------------------------------------------------
Build Time Report
---------------------------------------------------------------------
Target               Duration
------               --------
WS-Stop              00:00:00.0110515
WS-Clean             00:00:00.0095808
WS-Update            00:00:07.0757040   (dotnet paket update failed)
WS-Restore           00:00:00           (skipped)
WS-GenAssemblyInfo   00:00:00           (skipped)
Prepare              00:00:00           (skipped)
Build                00:00:00           (skipped)
Total:               00:00:07.1302384
Status:              Failure
---------------------------------------------------------------------
Fake.Core.BuildFailedException: Target 'WS-Update' failed.
 ---> System.AggregateException: One or more errors occurred. (dotnet paket update failed)
 ---> System.Exception: dotnet paket update failed
   at [email protected](TargetParameter _arg3) in /home/mmangel/Workspaces/Github/dotnet-websharper/core/string-builder-improvements/paket-files/wsbuild/github.com/dotnet-websharper/build-script/WebSharper.Fake.fsx:line 328
   at Fake.Core.TargetModule.runSimpleInternal(TargetContext context, Target target) in D:\a\FAKE\FAKE\src\app\Fake.Core.Target\Target.fs:line 371
   --- End of inner exception stack trace ---
   --- End of inner exception stack trace ---
   at Fake.Core.TargetModule.raiseIfError(OptionalTargetContext context) in D:\a\FAKE\FAKE\src\app\Fake.Core.Target\Target.fs:line 1319
   at Fake.Core.TargetModule.runOrDefaultWithArguments(String defaultTarget) in D:\a\FAKE\FAKE\src\app\Fake.Core.Target\Target.fs:line 1542
   at <StartupCode$FSI_0005>.$FSI_0005.main@() in /home/mmangel/Workspaces/Github/dotnet-websharper/core/string-builder-improvements/build.fsx:line 311
   at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)
   at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)
Stopped due to error

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