From 4e95679813c1430b3e53a304348ea2aa23d533f9 Mon Sep 17 00:00:00 2001
From: Gerard Smit <gsmit1996@gmail.com>
Date: Wed, 27 Aug 2025 22:21:36 +0200
Subject: [PATCH 1/2] Fix tar on Windows

---
 src/WasmComponent.Sdk/WasmComponent.Sdk.csproj             | 7 ++++++-
 src/WitBindgen/WitBindgen.csproj                           | 7 ++++++-
 ...BytecodeAlliance.Componentize.DotNet.WitBindgen.targets | 7 ++++++-
 test/WasmtimeCliFetcher/FetchWasmtime.targets              | 6 +++++-
 4 files changed, 23 insertions(+), 4 deletions(-)

diff --git a/src/WasmComponent.Sdk/WasmComponent.Sdk.csproj b/src/WasmComponent.Sdk/WasmComponent.Sdk.csproj
index a3d1c57..656dd40 100644
--- a/src/WasmComponent.Sdk/WasmComponent.Sdk.csproj
+++ b/src/WasmComponent.Sdk/WasmComponent.Sdk.csproj
@@ -29,6 +29,11 @@
         <IncludeBuildOutput>false</IncludeBuildOutput>
     </PropertyGroup>
 
+    <PropertyGroup>
+        <TarPath Condition="'$(TarPath)' == '' and $([MSBuild]::IsOSPlatform('Windows'))">C:\Windows\System32\tar.exe</TarPath>
+        <TarPath Condition="'$(TarPath)' == ''">tar</TarPath>
+    </PropertyGroup>
+
     <ItemGroup>
         <ProjectReference Include="..\WitBindgen\WitBindgen.csproj" PrivateAssets="None" />
     </ItemGroup>
@@ -96,7 +101,7 @@
     <Target Name="DownloadWasmTools" Inputs="@(PrebuiltWasmToolsOutputs)" Outputs="@(PrebuiltWasmToolsOutputs)">
         <DownloadFile SourceUrl="$(PrebuiltWasmToolsBaseUrl)-%(WasmToolsTarget.Identity)%(WasmToolsTarget.Ext)" DestinationFolder="tools\temp" DestinationFileName="%(WasmToolsTarget.Rid)%(WasmToolsTarget.Ext)" />
         <MakeDir Directories="tools\%(WasmToolsTarget.Rid)" />
-        <Exec Command="tar -xf &quot;temp/%(WasmToolsTarget.Rid)%(WasmToolsTarget.Ext)&quot; -C %(WasmToolsTarget.Rid) --strip-components=1" WorkingDirectory="tools" />
+        <Exec Command="$(TarPath) -xf &quot;temp/%(WasmToolsTarget.Rid)%(WasmToolsTarget.Ext)&quot; -C %(WasmToolsTarget.Rid) --strip-components=1" WorkingDirectory="tools" />
         <RemoveDir Directories="tools\temp" />
     </Target>
 
diff --git a/src/WitBindgen/WitBindgen.csproj b/src/WitBindgen/WitBindgen.csproj
index e1dba4f..9984d18 100644
--- a/src/WitBindgen/WitBindgen.csproj
+++ b/src/WitBindgen/WitBindgen.csproj
@@ -33,6 +33,11 @@
         <IncludeBuildOutput>false</IncludeBuildOutput>
     </PropertyGroup>
 
+    <PropertyGroup>
+        <TarPath Condition="'$(TarPath)' == '' and $([MSBuild]::IsOSPlatform('Windows'))">C:\Windows\System32\tar.exe</TarPath>
+        <TarPath Condition="'$(TarPath)' == ''">tar</TarPath>
+    </PropertyGroup>
+
     <ItemGroup>
         <None Include="../../Readme.md" Pack="true" PackagePath="\"/>
     </ItemGroup>
@@ -74,7 +79,7 @@
         <MakeDir Directories="tools\%(PrebuiltToolTarget.Rid)" />
         <DownloadFile SourceUrl="$(PrebuiltWitBindgenBaseUrl)-%(PrebuiltToolTarget.Identity)%(PrebuiltToolTarget.Ext)" DestinationFolder="tools\temp" DestinationFileName="%(PrebuiltToolTarget.Rid)%(PrebuiltToolTarget.Ext)" />
         <WriteLinesToFile File="$(CurrentWitBindgenVersion)" Lines="$(PrebuiltWitBindgenVersion)" Overwrite="true" WriteOnlyWhenDifferent="true" />
-        <Exec Command="tar -xf &quot;temp/%(PrebuiltToolTarget.Rid)%(PrebuiltToolTarget.Ext)&quot; -C %(PrebuiltToolTarget.Rid) --strip-components=1" WorkingDirectory="tools" />
+        <Exec Command="$(TarPath) -xf &quot;temp/%(PrebuiltToolTarget.Rid)%(PrebuiltToolTarget.Ext)&quot; -C %(PrebuiltToolTarget.Rid) --strip-components=1" WorkingDirectory="tools" />
         <RemoveDir Directories="tools\temp" />
 
         <DownloadFile SourceUrl="$(PrebuildWkgBaseUrl)-%(PrebuiltToolTarget.wkg)" DestinationFolder="tools\%(PrebuiltToolTarget.Rid)" DestinationFileName="wkg%(PrebuiltToolTarget.ExeExt)" />
diff --git a/src/WitBindgen/build/BytecodeAlliance.Componentize.DotNet.WitBindgen.targets b/src/WitBindgen/build/BytecodeAlliance.Componentize.DotNet.WitBindgen.targets
index 844cad2..3f55e7b 100644
--- a/src/WitBindgen/build/BytecodeAlliance.Componentize.DotNet.WitBindgen.targets
+++ b/src/WitBindgen/build/BytecodeAlliance.Componentize.DotNet.WitBindgen.targets
@@ -11,6 +11,11 @@
 
     </PropertyGroup>
 
+    <PropertyGroup>
+        <TarPath Condition="'$(TarPath)' == '' and $([MSBuild]::IsOSPlatform('Windows'))">C:\Windows\System32\tar.exe</TarPath>
+        <TarPath Condition="'$(TarPath)' == ''">tar</TarPath>
+    </PropertyGroup>
+
     <!--
         MSBuild stuff to acquire the necessary SDKs (WASI SDK) automatically. It will take a few mins on the
         first build on a given machine, but after that should no-op.
@@ -36,7 +41,7 @@
         <!-- Windows 10+ has tar built in, so this should work cross-platform -->
         <Message Importance="high" Text="Extracting @(WasiSdkDownloadTempFile) to $(WasiSdkRoot)..." />
         <MakeDir Directories="$(WasiSdkRoot)" />
-        <Exec Command="tar -xf &quot;@(WasiSdkDownloadTempFile)&quot; -C . --strip-components=1" WorkingDirectory="$(WasiSdkRoot)" />
+        <Exec Command="$(TarPath) -xf &quot;@(WasiSdkDownloadTempFile)&quot; -C . --strip-components=1" WorkingDirectory="$(WasiSdkRoot)" />
         <RemoveDir Directories="$(WasiSdkDownloadTempDir)" />
     </Target>
 
diff --git a/test/WasmtimeCliFetcher/FetchWasmtime.targets b/test/WasmtimeCliFetcher/FetchWasmtime.targets
index 29ed2d9..c408532 100644
--- a/test/WasmtimeCliFetcher/FetchWasmtime.targets
+++ b/test/WasmtimeCliFetcher/FetchWasmtime.targets
@@ -17,12 +17,16 @@
         <WasmtimeUrl>https://github.com/bytecodealliance/wasmtime/releases/download/v$(WasmtimeVersion)/wasmtime-v$(WasmtimeVersion)-$(WasmtimeTarget)$(WasmtimeUrlExtension)</WasmtimeUrl>
     </PropertyGroup>
 
+    <PropertyGroup>
+        <TarPath Condition="'$(TarPath)' == '' and $([MSBuild]::IsOSPlatform('Windows'))">C:\Windows\System32\tar.exe</TarPath>
+        <TarPath Condition="'$(TarPath)' == ''">tar</TarPath>
+    </PropertyGroup>
 
     <Target Name="AcquireWasmtime" Condition="!Exists('$(CurrentWasmtimeVersion)')" BeforeTargets="CoreBuild">
         <RemoveDir Directories="$(MSBuildThisFileDirectory)tools" />
         <DownloadFile SourceUrl="$(WasmtimeUrl)" DestinationFolder="$(MSBuildThisFileDirectory)tools" DestinationFileName="temp$(WasmtimeUrlExtension)" />	        
         <WriteLinesToFile File="$(CurrentWasmtimeVersion)" Lines="$(WasmtimeVersion)" Overwrite="true" WriteOnlyWhenDifferent="true" />
-        <Exec Command="tar -xf temp$(WasmtimeUrlExtension) --strip-components=1" WorkingDirectory="$(MSBuildThisFileDirectory)tools" />	  
+        <Exec Command="$(TarPath) -xf temp$(WasmtimeUrlExtension) --strip-components=1" WorkingDirectory="$(MSBuildThisFileDirectory)tools" />	  
         <Delete Files="$(MSBuildThisFileDirectory)tools\temp$(WasmtimeUrlExtension)" />
     </Target>
 </Project>

From 17b01e4c24e5f52357d38444ea4a95812e024e12 Mon Sep 17 00:00:00 2001
From: Gerard Smit <gsmit1996@gmail.com>
Date: Wed, 27 Aug 2025 22:39:50 +0200
Subject: [PATCH 2/2] Use SystemRoot instead of hardcoded C-drive

---
 src/WasmComponent.Sdk/WasmComponent.Sdk.csproj                  | 2 +-
 src/WitBindgen/WitBindgen.csproj                                | 2 +-
 .../BytecodeAlliance.Componentize.DotNet.WitBindgen.targets     | 2 +-
 test/WasmtimeCliFetcher/FetchWasmtime.targets                   | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/WasmComponent.Sdk/WasmComponent.Sdk.csproj b/src/WasmComponent.Sdk/WasmComponent.Sdk.csproj
index 656dd40..6f4286f 100644
--- a/src/WasmComponent.Sdk/WasmComponent.Sdk.csproj
+++ b/src/WasmComponent.Sdk/WasmComponent.Sdk.csproj
@@ -30,7 +30,7 @@
     </PropertyGroup>
 
     <PropertyGroup>
-        <TarPath Condition="'$(TarPath)' == '' and $([MSBuild]::IsOSPlatform('Windows'))">C:\Windows\System32\tar.exe</TarPath>
+        <TarPath Condition="'$(TarPath)' == '' and $([MSBuild]::IsOSPlatform('Windows'))">$(SystemRoot)\System32\tar.exe</TarPath>
         <TarPath Condition="'$(TarPath)' == ''">tar</TarPath>
     </PropertyGroup>
 
diff --git a/src/WitBindgen/WitBindgen.csproj b/src/WitBindgen/WitBindgen.csproj
index 9984d18..b04905b 100644
--- a/src/WitBindgen/WitBindgen.csproj
+++ b/src/WitBindgen/WitBindgen.csproj
@@ -34,7 +34,7 @@
     </PropertyGroup>
 
     <PropertyGroup>
-        <TarPath Condition="'$(TarPath)' == '' and $([MSBuild]::IsOSPlatform('Windows'))">C:\Windows\System32\tar.exe</TarPath>
+        <TarPath Condition="'$(TarPath)' == '' and $([MSBuild]::IsOSPlatform('Windows'))">$(SystemRoot)\System32\tar.exe</TarPath>
         <TarPath Condition="'$(TarPath)' == ''">tar</TarPath>
     </PropertyGroup>
 
diff --git a/src/WitBindgen/build/BytecodeAlliance.Componentize.DotNet.WitBindgen.targets b/src/WitBindgen/build/BytecodeAlliance.Componentize.DotNet.WitBindgen.targets
index 3f55e7b..9f732d3 100644
--- a/src/WitBindgen/build/BytecodeAlliance.Componentize.DotNet.WitBindgen.targets
+++ b/src/WitBindgen/build/BytecodeAlliance.Componentize.DotNet.WitBindgen.targets
@@ -12,7 +12,7 @@
     </PropertyGroup>
 
     <PropertyGroup>
-        <TarPath Condition="'$(TarPath)' == '' and $([MSBuild]::IsOSPlatform('Windows'))">C:\Windows\System32\tar.exe</TarPath>
+        <TarPath Condition="'$(TarPath)' == '' and $([MSBuild]::IsOSPlatform('Windows'))">$(SystemRoot)\System32\tar.exe</TarPath>
         <TarPath Condition="'$(TarPath)' == ''">tar</TarPath>
     </PropertyGroup>
 
diff --git a/test/WasmtimeCliFetcher/FetchWasmtime.targets b/test/WasmtimeCliFetcher/FetchWasmtime.targets
index c408532..eaf967d 100644
--- a/test/WasmtimeCliFetcher/FetchWasmtime.targets
+++ b/test/WasmtimeCliFetcher/FetchWasmtime.targets
@@ -18,7 +18,7 @@
     </PropertyGroup>
 
     <PropertyGroup>
-        <TarPath Condition="'$(TarPath)' == '' and $([MSBuild]::IsOSPlatform('Windows'))">C:\Windows\System32\tar.exe</TarPath>
+        <TarPath Condition="'$(TarPath)' == '' and $([MSBuild]::IsOSPlatform('Windows'))">$(SystemRoot)\System32\tar.exe</TarPath>
         <TarPath Condition="'$(TarPath)' == ''">tar</TarPath>
     </PropertyGroup>