Removing F# from warmup path

Author: mathewc

src/WebJobs.Script.WebHost/Resources/Functions/Test-FSharp/function.json

@@ -470,7 +470,6 @@
       <LastGenOutput>Resources.Designer.cs</LastGenOutput>
       <SubType>Designer</SubType>
     </EmbeddedResource>
-    <EmbeddedResource Include="Resources\Functions\Test-FSharp\run.fsx" />
     <EmbeddedResource Include="Home.html" />
     <Content Include="Web.config" />
   </ItemGroup>
@@ -591,7 +590,6 @@
     <EmbeddedResource Include="Resources\Functions\host.json" />
     <EmbeddedResource Include="Resources\Functions\Test-CSharp\function.json" />
     <EmbeddedResource Include="Resources\Functions\Test-CSharp\run.csx" />
-    <EmbeddedResource Include="Resources\Functions\Test-FSharp\function.json" />
     <None Include="Web.Debug.config">
       <DependentUpon>Web.config</DependentUpon>
     </None>

src/WebJobs.Script.WebHost/Resources/Functions/Test-FSharp/run.fsx

@@ -239,7 +239,7 @@ public void Initialize()
             }
         }
 
-        public static void WarmUp(WebHostSettings settings, IScriptEventManager eventManager)
+        public static async Task WarmUp(WebHostSettings settings, IScriptEventManager eventManager)
         {
             var traceWriter = new FileTraceWriter(Path.Combine(settings.LogPath, "Host"), TraceLevel.Info);
             ScriptHost host = null;
@@ -265,14 +265,6 @@ public static void WarmUp(WebHostSettings settings, IScriptEventManager eventMan
                 content = ReadResourceString("Functions.Test_CSharp.run.csx");
                 File.WriteAllText(Path.Combine(functionPath, "run.csx"), content);
 
-                // read in the F# function
-                functionPath = Path.Combine(rootPath, "Test-FSharp");
-                Directory.CreateDirectory(functionPath);
-                content = ReadResourceString("Functions.Test_FSharp.function.json");
-                File.WriteAllText(Path.Combine(functionPath, "function.json"), content);
-                content = ReadResourceString("Functions.Test_FSharp.run.fsx");
-                File.WriteAllText(Path.Combine(functionPath, "run.fsx"), content);
-
                 traceWriter.Info("Warm up functions deployed");
 
                 ScriptHostConfiguration config = new ScriptHostConfiguration
@@ -296,9 +288,10 @@ public static void WarmUp(WebHostSettings settings, IScriptEventManager eventMan
                     { "input", "{}" }
                 };
                 host.CallAsync("Test-CSharp", arguments).Wait();
-                host.CallAsync("Test-FSharp", arguments).Wait();
                 host.Stop();
 
+                await NodeFunctionInvoker.InitializeAsync();
+
                 traceWriter.Info("Warm up succeeded");
             }
             catch (Exception ex)

src/WebJobs.Script.WebHost/WebJobs.Script.WebHost.csproj

@@ -705,7 +705,7 @@ private static bool TryDeserializeJson<TResult>(string json, out TResult result)
         /// <summary>
         /// Performs required static initialization in the Edge context.
         /// </summary>
-        private static async Task InitializeAsync()
+        internal static async Task InitializeAsync()
         {
             var handle = (ScriptFunc)(err =>
             {

src/WebJobs.Script.WebHost/WebScriptHostManager.cs

@@ -4,6 +4,7 @@
 using System;
 using System.IO;
 using System.Linq;
+using System.Threading.Tasks;
 using Microsoft.Azure.WebJobs.Script.Config;
 using Microsoft.Azure.WebJobs.Script.Eventing;
 using Microsoft.Azure.WebJobs.Script.WebHost;
@@ -121,21 +122,20 @@ private void TestGetter<T>(Func<WebHostSettings, T> func)
         }
 
         [Fact]
-        public void Warmup_Succeeds()
+        public async Task Warmup_Succeeds()
         {
             using (new TestEnvironment())
             {
                 var settings = GetWebHostSettings();
                 var eventManagerMock = new Mock<IScriptEventManager>();
-                WebScriptHostManager.WarmUp(settings, eventManagerMock.Object);
+                await WebScriptHostManager.WarmUp(settings, eventManagerMock.Object);
 
                 var hostLogPath = Path.Combine(settings.LogPath, @"host");
                 var hostLogFile = Directory.GetFiles(hostLogPath).First();
                 var content = File.ReadAllText(hostLogFile);
 
                 Assert.Contains("Warm up started", content);
                 Assert.Contains("Executed 'Functions.Test-CSharp' (Succeeded, Id=", content);
-                Assert.Contains("Executed 'Functions.Test-FSharp' (Succeeded, Id=", content);
                 Assert.Contains("Warm up succeeded", content);
             }
         }