build.proj

<Project Sdk="Microsoft.NET.Sdk" DefaultTargets="BuildProjects">
    <Import Project="dependencies.props" />
    
    <ItemGroup>
        <VersionFile Include="version.props"/>
    </ItemGroup>
    <PropertyGroup>
        <NuspecPath>Microsoft.jQuery.Unobtrusive.Validation.nuspec</NuspecPath>
        <DistDir>$(MSBuildThisFileDirectory)dist\</DistDir>
        <ArtifactsDir>$(MSBuildThisFileDirectory)artifacts\build\</ArtifactsDir>
        <WebPackTestDir>$(MSBuildThisFileDirectory)test\webpacktest\</WebPackTestDir>
        <TargetFramework>netcoreapp3.1</TargetFramework>
    </PropertyGroup>

    <ItemGroup>
        <DistDirFiles Include="$(DistDir)*.*;"/>
    </ItemGroup>

    <ItemGroup Condition="'$(Sign)' == 'true'">
        <PackageReference Include="Microsoft.DotNet.SignTool" Version="$(MicrosoftDotNetSignToolVersion)"/>
        <PackageReference Include="vswhere" Version="$(VSWhereVersion)"/>
        <PackageReference Include="sn" Version="$(SNVersion)"/>
        <PackageReference Include="MicroBuild.Core" Version="$(MicroBuildCoreVersion)"/>
    </ItemGroup>

    <Target Name="BuildProjects">
        <ReadLinesFromFile File="@(VersionFile)">
            <Output TaskParameter="Lines" PropertyName="PackageVersion"/>
        </ReadLinesFromFile>
        <Exec Command="npm install" />
        <Exec Command="npm version --no-git-tag-version --allow-same-version $(PackageVersion)" />
        <Exec Command="$(MSBuildThisFileDirectory)node_modules\.bin\gulp" />
        <MakeDir Directories="$(ArtifactsDir)" />
        <Copy
            SourceFiles="@(DistDirFiles)"
            DestinationFolder="$(ArtifactsDir)" OverwriteReadOnlyFiles="true"/>
        <Exec Command="npm pack $(MSBuildThisFileDirectory)" WorkingDirectory="$(ArtifactsDir)" />
        <Exec Command="nuget pack $(NuspecPath) -Version $(PackageVersion) -OutputDirectory $(ArtifactsDir)" />

        <MSBuild Projects ="$(MSBuildProjectFullPath)"
            Properties="PackageVersion=$(PackageVersion)"
            Targets="Test" />

        <Message Text="Signing files..." Importance="High" Condition="'$(Sign)' == 'true'"/>
        <MSBuild Projects="Sign.proj"
         Targets="Sign"
         Properties="ArtifactsDir=$(ArtifactsDir);DotNetSignType=$(SignType)"
         Condition="'$(Sign)' == 'true'"/>
    </Target>

    <Target Name="Test">
        <Message Text="Testing Webpack build..." />
        <Exec Command="npm init -y" WorkingDirectory="$(WebPackTestDir)" />
        <Exec Command="npm install $(ArtifactsDir)jquery-validation-unobtrusive-$(PackageVersion).tgz --save-dev --force" WorkingDirectory="$(WebPackTestDir)" />
        <Exec Command="npm install webpack webpack-cli --save-dev" WorkingDirectory="$(WebPackTestDir)" />
        <Exec Command="npx webpack" WorkingDirectory="$(WebPackTestDir)" />
    </Target>
</Project>