New .csproj format - How to specify entire directory as “linked file” to a subdirectory?

Question

With the new .csproj format (as well as the old), it is possible to add files as linked outside of the project folder:

Answer 1

I got this working for me (linking all svg-files in an external dir to a solution-subfolder) with a hint from this site. Only the %(Parent.Filename) didn't work for me (got a CS1508), so I replaced with %(Filename)%(Extension).

<ItemGroup>
    <Parent Include="C:\Path\To\My\SVG\Dir\*.svg" />
    <EmbeddedResource Include="@(Parent)">
        <Link>Resources\%(Filename)%(Extension)</Link>
    </EmbeddedResource>
</ItemGroup>

Answer 2

While this was previously possible using the %(RecursiveDir) metadata when using glob expansion ( Link="Resources\%(RecursiveDir)%(Filename)%(Extension)"), the 2.0.0 version of the .NET Core SDK allows the use of a new LinkBase metadata:

<EmbeddedResource Include="..\..\..\Demo\**\*.cs" LinkBase="Resources" />

Note that you need to install the 2.0.0 in addition to the recently released VS 2017 15.3 (and ensure no global.json selects a lower version).

It was introduced with this pull request which is probably the best documentation at the moment.