/// <summary>
/// Provides the path to Xplat dll on the test machine.
/// It traverses in the directory tree going one step up at a time and looks for src folder.
/// Once in src, it looks for the xplat dll in the location specified by <code>_xplatDll</code>.
/// </summary>
/// <returns>
/// <code>String</code> containing the path to the dotnet cli within the local repository.
/// Can return <code>null</code> if no src directory or xplat dll is found, in which case the tests can fail.
/// </returns>
public static string GetXplatDll()
{
var dir = TestFileSystemUtility.ParentDirectoryLookup()
.FirstOrDefault(d => Directory.Exists(Path.Combine(d.FullName, "src")));
if (dir != null)
{
const string configuration =
#if DEBUG
"Debug";
#else
"Release";
#endif
var relativePaths = new string[]
{
Path.Combine("artifacts", "NuGet.CommandLine.XPlat", "bin", configuration, "netcoreapp5.0", XPlatDll)
};
foreach (var relativePath in relativePaths)
{
var filePath = Path.Combine(dir.FullName, relativePath);
if (File.Exists(filePath))
{
return(filePath);
}
}
}
return(null);
}