fix PostBuild Target to work cross platform with MSBuild Copy Task

Author: dansiegel

Blogifier.Web/Blogifier.Web.csproj

@@ -27,9 +27,18 @@
     <ProjectReference Include="..\Blogifier.Core\Blogifier.Core.csproj" />
   </ItemGroup>
 
-  <Target Name="PostBuild" AfterTargets="PostBuildEvent" Condition="Exists('$(SolutionDir)Packages\Widgets\Newsletter\bin\Debug\netcoreapp2.0\Newsletter.dll')">
-    <Exec Command="xcopy &quot;$(SolutionDir)Packages\Widgets\Newsletter\bin\Debug\netcoreapp2.0\Newsletter.dll&quot; &quot;$(TargetDir)&quot; /Y" />
-    <Exec Command="xcopy &quot;$(SolutionDir)Packages\Widgets\PostList\bin\Debug\netcoreapp2.0\PostList.dll&quot; &quot;$(TargetDir)&quot; /Y" />
+  <Target Name="PostBuild" 
+          AfterTargets="PostBuildEvent" 
+          Condition="Exists('$(SolutionDir)Packages\Widgets\Newsletter\bin\Debug\netcoreapp2.0\Newsletter.dll')">
+        <PropertyGroup>
+            <WidgetBaseDir>$(SolutionDir)Packages\Widgets\</WidgetBaseDir>
+        </PropertyGroup>
+    <Copy SourceFiles="$(WidgetBaseDir)Newsletter\bin\$(Configuration)\$(TargetFramework)\Newsletter.dll"
+          DestinationFolder="$(TargetDir)"
+          Condition="Exists('$(WidgetBaseDir)Newsletter\bin\$(Configuration)\$(TargetFramework)\Newsletter.dll')"/>
+    <Copy SourceFiles="$(WidgetBaseDir)PostList\bin\$(Configuration)\$(TargetFramework)\PostList.dll"
+          DestinationFolder="$(TargetDir)"
+          Condition="Exists('$(WidgetBaseDir)PostList\bin\$(Configuration)\$(TargetFramework)\PostList.dll')"/>
   </Target>
 
 </Project>