update: extension dependency checker

Author: Esonhugh

src/extension.ts

@@ -7,15 +7,30 @@ import { registerCodeLensProviders } from "./codelens";
 import { registerTerminalUtils } from "./terminal";
 import { registerDefinitionProvider } from "./definition";
 
-export async function activate(context: vscode.ExtensionContext) {
-  Context.context = context;
+function dependencyCheck(context: vscode.ExtensionContext): boolean {
+  const foamExtension = vscode.extensions.getExtension("foam.foam-vscode");
+  if (!foamExtension) {
+    logger.warn("Foam extension is not installed.");
+    vscode.window.showErrorMessage("Foam extension is not installed. please install foam.foam-vscode extension");
+    return false;
+  }
+  logger.info("Foam extension is installed.");
   if (
     !vscode.workspace.workspaceFolders ||
     vscode.workspace.workspaceFolders.length === 0
   ) {
     vscode.window.showErrorMessage(
       "Please open a workspace folder to use this extension."
     );
+    return false;
+  }
+  logger.info("Workspace folder is available.");
+  return true;
+}
+
+export async function activate(context: vscode.ExtensionContext) {
+  Context.context = context;
+  if (!dependencyCheck(context)) {
     return;
   }
   logger.info("Activating vscode weaponized extension...");