Add a script that installs Roslyn VSIXes

to the RoslynPerf hive.

src/Test/Perf/util/InstallVsixes.csx

+#load "test_util.csx"
+
+var binaries = new RelativeDirectory().MyBinaries();
+var vsixes = new[]
+{
+    "Roslyn.VisualStudio.Setup.vsix",
+    "Roslyn.VisualStudio.Test.Setup.vsix",
+    "Microsoft.VisualStudio.VsInteractiveWindow.vsix",
+    "Roslyn.VisualStudio.InteractiveComponents.vsix",
+    "Roslyn.VisualStudio.Setup.Interactive.vsix",
+    "Roslyn.Compilers.Extension.vsix",
+    "Microsoft.VisualStudio.LanguageServices.Telemetry.vsix"
+};
+
+var installer = Path.Combine(binaries, "VSIXExpInstaller.exe");
+
+foreach (var vsix in vsixes)
+{
+    ShellOutVital(installer, $"/rootSuffix:RoslynPerf {vsix}", binaries, System.Threading.CancellationToken.None);
+}
+
+

src/Test/Perf/util/test_util.csx

@@ -61,6 +61,31 @@ class RelativeDirectory
         }
     }
 
+    public string MyBinaries()
+    {
+        // The exceptation is that scripts calling this are included
+        // in a project in the solution and have already been deployed
+        // to a binaries folder
+
+        // Debug?
+        var debug = "debug";
+        var debugIndex = _workingDir.IndexOf(debug, StringComparison.CurrentCultureIgnoreCase);
+        if (debugIndex != -1)
+        {
+            return _workingDir.Substring(0, debugIndex + debug.Length);
+        }
+
+        // Release?
+        var release = "release";
+        var releaseIndex = _workingDir.IndexOf(release, StringComparison.CurrentCultureIgnoreCase);
+        if (releaseIndex != -1)
+        {
+            return _workingDir.Substring(0, releaseIndex + release.Length);
+        }
+
+        throw new Exception("Couldn't find binaries. Are you running from the binaries directory?");
+    }
+
     public string PerfDirectory => Path.Combine(RoslynDirectory, "src", "Test", "Perf");
 
     public string BinDirectory => Path.Combine(RoslynDirectory, "Binaries");

src/Test/PerformanceTesting.csproj

@@ -121,6 +121,9 @@
     <Content Include="Perf\util\trace_manager_util.csx">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </Content>
+    <Content Include="Perf\util\InstallVsixes.csx">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
   </ItemGroup>
   <ItemGroup>
     <Content Include="Perf\tests\helloworld\HelloWorld.cs">