Move Wasmtime for .NET to the Wasmtime repo.

This moves the Wasmtime for .NET implementation to the Wasmtime repo.

Wasmtime for .NET is a binding of the Wasmtime API for use in .NET.

crates/misc/dotnet/src/Wasmtime.csproj

@@ -0,0 +1,77 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netstandard2.1</TargetFramework>
+    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.CSharp" Version="4.6.0" />
+  </ItemGroup>
+
+  <PropertyGroup>
+    <AssemblyName>Wasmtime.Dotnet</AssemblyName>
+    <PackageId>Wasmtime</PackageId>
+    <Version>$(WasmtimeVersion)-preview1</Version>
+    <Authors>Peter Huene</Authors>
+    <Owners>Peter Huene</Owners>
+    <IncludeSymbols>true</IncludeSymbols>
+    <SymbolPackageFormat>snupkg</SymbolPackageFormat>
+    <RepositoryUrl>https://github.com/bytecodealliance/wasmtime</RepositoryUrl>
+    <PackageReleaseNotes>Initial release of Wasmtime for .NET.</PackageReleaseNotes>
+    <Summary>A .NET API for Wasmtime, a standalone WebAssembly runtime</Summary>
+    <PackageTags>webassembly, .net, wasm, wasmtime</PackageTags>
+    <Title>Wasmtime</Title>
+    <PackageDescription>
+A .NET API for Wasmtime.
+
+Wasmtime is a standalone runtime for WebAssembly, using the Cranelift JIT compiler.
+
+Wasmtime for .NET enables .NET code to instantiate WebAssembly modules and to interact with them in-process.
+    </PackageDescription>
+  </PropertyGroup>
+
+  <Target Name="PackWasmtime" BeforeTargets="_GetPackageFiles">
+    <PropertyGroup>
+      <WasmtimeArchitecture>x86_64</WasmtimeArchitecture>
+      <ReleaseURLBase>https://github.com/bytecodealliance/wasmtime/releases/download/v$(WasmtimeVersion)/wasmtime-v$(WasmtimeVersion)-$(WasmtimeArchitecture)</ReleaseURLBase>
+    </PropertyGroup>
+
+    <ItemGroup>
+      <WasmtimeDownload Include="Linux">
+        <URL>$(ReleaseURLBase)-linux-c-api.tar.xz</URL>
+        <DownloadFolder>$(IntermediateOutputPath)wasmtime-linux</DownloadFolder>
+        <DownloadFilename>linux.tar.xz</DownloadFilename>
+        <WasmtimeLibraryFilename>libwasmtime.so</WasmtimeLibraryFilename>
+        <PackagePath>runtimes/linux-x64/native</PackagePath>
+      </WasmtimeDownload>
+      <WasmtimeDownload Include="macOS">
+        <URL>$(ReleaseURLBase)-macos-c-api.tar.xz</URL>
+        <DownloadFolder>$(IntermediateOutputPath)wasmtime-macos</DownloadFolder>
+        <DownloadFilename>macos.tar.xz</DownloadFilename>
+        <WasmtimeLibraryFilename>libwasmtime.dylib</WasmtimeLibraryFilename>
+        <PackagePath>runtimes/osx-x64/native</PackagePath>
+      </WasmtimeDownload>
+      <WasmtimeDownload Include="Windows">
+        <URL>$(ReleaseURLBase)-windows-c-api.zip</URL>
+        <DownloadFolder>$(IntermediateOutputPath)wasmtime-windows</DownloadFolder>
+        <DownloadFilename>windows.zip</DownloadFilename>
+        <WasmtimeLibraryFilename>wasmtime.dll</WasmtimeLibraryFilename>
+        <PackagePath>runtimes/win-x64/native</PackagePath>
+      </WasmtimeDownload>
+    </ItemGroup>
+
+    <Message Text="Downloading Wasmtime release." Importance="High" />
+    <DownloadFile SourceUrl="%(WasmtimeDownload.URL)" DestinationFolder="%(WasmtimeDownload.DownloadFolder)" DestinationFileName="%(WasmtimeDownload.DownloadFilename)" SkipUnchangedFiles="true" />
+
+    <Message Text="Decompressing Wasmtime release." Importance="High" />
+    <Exec Command="tar --strip-components 1 -xvzf %(WasmtimeDownload.DownloadFilename)" WorkingDirectory="%(WasmtimeDownload.DownloadFolder)" StandardOutputImportance="Low" StandardErrorImportance="Low" />
+
+    <ItemGroup>
+      <Content Include="%(WasmtimeDownload.DownloadFolder)/lib/%(WasmtimeDownload.WasmtimeLibraryFilename)" Link="%(WasmtimeDownload.PackagePath)/%(WasmtimeDownload.WasmtimeLibraryFilename)">
+        <PackagePath>%(WasmtimeDownload.PackagePath)</PackagePath>
+      </Content>
+    </ItemGroup>
+  </Target>
+
+</Project>