Generate Extension Info in server application

fixes #13481

contributed on behalf of STMicroelectronics

Signed-off-by: Remi Schnekenburger <[email protected]>

Author: rschnekenbu

CHANGELOG.md

@@ -6,9 +6,11 @@
 
 ## not yet released
 
+- [application-manager] Generate Extension Info in server application to avoid empty About Dialog [#13590](https://github.com/eclipse-theia/theia/pull/13590) - contributed on behalf of STMicroelectronics
 - [scm] added support for dirty diff peek view [#13104](https://github.com/eclipse-theia/theia/pull/13104)
 
 <a name="breaking_changes_not_yet_released">[Breaking Changes:](#breaking_changes_not_yet_released)</a>
+
 - [scm] revised some of the dirty diff related types [#13104](https://github.com/eclipse-theia/theia/pull/13104)
   - replaced `DirtyDiff.added/removed/modified` with `changes`, which provides more detailed information about the changes
   - changed the semantics of `LineRange` to represent a range that spans up to but not including the `end` line (previously, it included the `end` line)

dev-packages/application-manager/src/generator/backend-generator.ts

@@ -185,6 +185,8 @@ const main = require('@theia/core/lib/node/main');
 
 BackendApplicationConfigProvider.set(${this.prettyStringify(this.pck.props.backend.config)});
 
+globalThis.extensionInfo = ${this.prettyStringify(this.pck.extensionPackages.map(({ name, version }) => ({ name, version }))) };
+
 const serverModule = require('./server');
 const serverAddress = main.start(serverModule());
 

packages/core/src/node/application-server.ts

@@ -26,9 +26,9 @@ export class ApplicationServerImpl implements ApplicationServer {
     protected readonly applicationPackage: ApplicationPackage;
 
     getExtensionsInfos(): Promise<ExtensionInfo[]> {
-        const extensions = this.applicationPackage.extensionPackages;
-        const infos: ExtensionInfo[] = extensions.map(extension => ({ name: extension.name, version: extension.version }));
-        return Promise.resolve(infos);
+        // @ts-expect-error
+        const appInfo: ExtensionInfo[] = globalThis.extensionInfo;
+        return Promise.resolve(appInfo);
     }
 
     getApplicationInfo(): Promise<ApplicationInfo | undefined> {