Adds more logging and null check to WIKI Updater

.devcontainer/devcontainer.json

@@ -0,0 +1,24 @@
+// For format details, see https://aka.ms/devcontainer.json. For config options, see the
+// README at: https://github.com/devcontainers/templates/tree/main/src/typescript-node
+{
+	"name": "Node.js & TypeScript",
+	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
+	"image": "mcr.microsoft.com/devcontainers/typescript-node:1-20-bullseye",
+	// Configure tool-specific properties.
+	"customizations": {
+		"vscode": {
+			"extensions": [
+				"github.vscode-pull-request-github",
+				"github.copilot"
+			]
+		}
+	},
+	// Commands to be run after the container is created.
+	"postCreateCommand": [
+		"echo 'Add PWSH'",
+        "wget -q https://packages.microsoft.com/config/ubuntu/20.04/packages-microsoft-prod.deb",
+        "sudo dpkg -i packages-microsoft-prod.deb",
+        "sudo apt-get update",
+        "sudo apt-get install -y powershell"
+    ]
+}

Extensions/WikiUpdater/WikiUpdaterTask/src/GitWikiFuntions.ts

@@ -125,6 +125,12 @@ export async function UpdateGitWikiFile(
     mode) {
     const git = simpleGit();
 
+    // show error if content is null
+    if (!contents) {
+        logError(`The new content is null, so cannot be used to update the wiki`);
+        return;
+    }
+
     let remote = "";
     let logremote = ""; // used to make sure we hide the password in logs
     var extraHeaders = [];  // Add handling for #613

Extensions/WikiUpdater/WikiUpdaterTask/src/GitWikiTask.ts

@@ -95,6 +95,7 @@ var haveData = true;
 var contents; // we late declare as it might be buffer or string
 if (dataIsFile === true) {
     if (fs.existsSync(sourceFile)) {
+        logInfo(`Reading file ${sourceFile}`);
         if (fixLineFeeds) {
             contents = fs.readFileSync(sourceFile, "utf8");
         } else {
@@ -106,6 +107,7 @@ if (dataIsFile === true) {
     }
 } else {
     // we do this late copy so that we can use the same property for different encodings with a type clash
+    logInfo(`Using contents string directly input`);
     contents = contentsInput;
 }