From 7178cdceb6484350122bb953996bc5398c3b90dc Mon Sep 17 00:00:00 2001
From: Lazy <2818242447@qq.com>
Date: Thu, 21 May 2026 13:24:38 +0800
Subject: [PATCH] Include installed extensions missing from VS Code API

---
 src/service/installedExtensions.service.ts    | 102 ++++++++++++++++++
 src/service/plugin.service.ts                 |  33 +++---
 .../pluginService/pluginService.test.ts       | 101 +++++++++++++++++
 3 files changed, 220 insertions(+), 16 deletions(-)
 create mode 100644 src/service/installedExtensions.service.ts
 create mode 100644 test/service/pluginService/pluginService.test.ts

diff --git a/src/service/installedExtensions.service.ts b/src/service/installedExtensions.service.ts
new file mode 100644
index 00000000..c414d88c
--- /dev/null
+++ b/src/service/installedExtensions.service.ts
@@ -0,0 +1,102 @@
+"use strict";
+
+import * as fs from "fs-extra";
+import * as path from "path";
+
+export interface IInstalledExtensionMetadata {
+  galleryApiUrl: string;
+  id: string;
+  downloadUrl: string;
+  publisherId: string;
+  publisherDisplayName: string;
+  date: string;
+}
+
+export interface IInstalledExtensionInformation {
+  metadata: IInstalledExtensionMetadata;
+  name: string;
+  version: string;
+  publisher: string;
+}
+
+export class InstalledExtensionsService {
+  public static CreateExtensionFromPackageJSON(
+    packageJSON: any
+  ): IInstalledExtensionInformation {
+    const meta = packageJSON.__metadata || {
+      id: packageJSON.uuid,
+      publisherId: packageJSON.publisher,
+      publisherDisplayName: packageJSON.publisher
+    };
+
+    return {
+      metadata: {
+        galleryApiUrl: meta.galleryApiUrl,
+        id: meta.id,
+        downloadUrl: meta.downloadUrl,
+        publisherId: meta.publisherId,
+        publisherDisplayName: meta.publisherDisplayName,
+        date: meta.date
+      },
+      name: packageJSON.name,
+      publisher: packageJSON.publisher,
+      version: packageJSON.version
+    };
+  }
+
+  public static MergeFromExtensionFolder(
+    extensions: IInstalledExtensionInformation[],
+    extensionFolder: string
+  ): IInstalledExtensionInformation[] {
+    if (!extensionFolder || !fs.existsSync(extensionFolder)) {
+      return extensions;
+    }
+
+    const existingExtensions = extensions.map(ext =>
+      InstalledExtensionsService.GetExtensionFullName(ext)
+    );
+
+    fs.readdirSync(extensionFolder).forEach(folderName => {
+      const packageFile = path.join(
+        extensionFolder,
+        folderName,
+        "package.json"
+      );
+      if (!fs.existsSync(packageFile)) {
+        return;
+      }
+
+      try {
+        const packageJSON = fs.readJSONSync(packageFile);
+        if (
+          packageJSON.isBuiltin ||
+          !packageJSON.name ||
+          !packageJSON.publisher
+        ) {
+          return;
+        }
+
+        const extension = InstalledExtensionsService.CreateExtensionFromPackageJSON(
+          packageJSON
+        );
+        const extensionName = InstalledExtensionsService.GetExtensionFullName(
+          extension
+        );
+        if (!existingExtensions.includes(extensionName)) {
+          extensions.push(extension);
+          existingExtensions.push(extensionName);
+        }
+      } catch (err) {
+        console.warn(`Sync : Unable to read extension ${folderName}: ${err}`);
+      }
+    });
+
+    return extensions;
+  }
+
+  public static GetExtensionFullName(
+    extension: IInstalledExtensionInformation
+  ): string {
+    return `${extension.publisher}.${extension.name}`.toLowerCase();
+  }
+}
diff --git a/src/service/plugin.service.ts b/src/service/plugin.service.ts
index 12abe312..1755cf6c 100644
--- a/src/service/plugin.service.ts
+++ b/src/service/plugin.service.ts
@@ -1,5 +1,7 @@
 "use strict";
 import * as vscode from "vscode";
+import { state } from "../state";
+import { InstalledExtensionsService } from "./installedExtensions.service";
 
 export class ExtensionInformation {
   public static fromJSON(text: string) {
@@ -123,29 +125,28 @@ export class PluginService {
   }
 
   public static CreateExtensionList() {
-    return vscode.extensions.all
+    const extensions = vscode.extensions.all
       .filter(ext => !ext.packageJSON.isBuiltin)
       .map(ext => {
-        const meta = ext.packageJSON.__metadata || {
-          id: ext.packageJSON.uuid,
-          publisherId: ext.id,
-          publisherDisplayName: ext.packageJSON.publisher
-        };
-        const data = new ExtensionMetadata(
-          meta.galleryApiUrl,
-          meta.id,
-          meta.downloadUrl,
-          meta.publisherId,
-          meta.publisherDisplayName,
-          meta.date
+        const extension = InstalledExtensionsService.CreateExtensionFromPackageJSON(
+          ext.packageJSON
+        );
+        const data = Object.assign(
+          new ExtensionMetadata("", "", "", "", "", ""),
+          extension.metadata
         );
         const info = new ExtensionInformation();
         info.metadata = data;
-        info.name = ext.packageJSON.name;
-        info.publisher = ext.packageJSON.publisher;
-        info.version = ext.packageJSON.version;
+        info.name = extension.name;
+        info.publisher = extension.publisher;
+        info.version = extension.version;
         return info;
       });
+
+    return InstalledExtensionsService.MergeFromExtensionFolder(
+      extensions,
+      state.environment.EXTENSION_FOLDER
+    );
   }
 
   public static async DeleteExtension(
diff --git a/test/service/pluginService/pluginService.test.ts b/test/service/pluginService/pluginService.test.ts
new file mode 100644
index 00000000..fae1a33e
--- /dev/null
+++ b/test/service/pluginService/pluginService.test.ts
@@ -0,0 +1,101 @@
+import { expect } from "chai";
+import * as fs from "fs-extra";
+import * as os from "os";
+import * as path from "path";
+
+import {
+  IInstalledExtensionInformation,
+  InstalledExtensionsService
+} from "../../../src/service/installedExtensions.service";
+
+describe("PluginService", () => {
+  describe("MergeInstalledExtensionsFromDisk", () => {
+    let extensionFolder: string;
+
+    beforeEach(() => {
+      extensionFolder = fs.mkdtempSync(
+        path.join(os.tmpdir(), "settings-sync-extensions-")
+      );
+    });
+
+    afterEach(() => {
+      fs.removeSync(extensionFolder);
+    });
+
+    it("should include installed extensions that are not returned by the VS Code API", () => {
+      const enabledExtension: IInstalledExtensionInformation = {
+        metadata: {
+          date: undefined,
+          downloadUrl: undefined,
+          galleryApiUrl: undefined,
+          id: "enabled-id",
+          publisherDisplayName: "Sample",
+          publisherId: "sample"
+        },
+        name: "enabled",
+        publisher: "sample",
+        version: "1.0.0"
+      };
+
+      fs.mkdirpSync(path.join(extensionFolder, "sample.disabled-2.0.0"));
+      fs.writeJSONSync(
+        path.join(extensionFolder, "sample.disabled-2.0.0", "package.json"),
+        {
+          __metadata: {
+            id: "disabled-id",
+            publisherDisplayName: "Sample",
+            publisherId: "sample"
+          },
+          name: "disabled",
+          publisher: "sample",
+          version: "2.0.0"
+        }
+      );
+
+      const extensions = InstalledExtensionsService.MergeFromExtensionFolder(
+        [enabledExtension],
+        extensionFolder
+      );
+
+      expect(extensions.map(ext => `${ext.publisher}.${ext.name}`)).to.deep.eq([
+        "sample.enabled",
+        "sample.disabled"
+      ]);
+      expect(extensions[1].version).to.eq("2.0.0");
+    });
+
+    it("should not duplicate extensions that are already returned by the VS Code API", () => {
+      const extension: IInstalledExtensionInformation = {
+        metadata: {
+          date: undefined,
+          downloadUrl: undefined,
+          galleryApiUrl: undefined,
+          id: "enabled-id",
+          publisherDisplayName: "Sample",
+          publisherId: "sample"
+        },
+        name: "enabled",
+        publisher: "sample",
+        version: "1.0.0"
+      };
+
+      fs.mkdirpSync(path.join(extensionFolder, "sample.enabled-1.0.0"));
+      fs.writeJSONSync(
+        path.join(extensionFolder, "sample.enabled-1.0.0", "package.json"),
+        {
+          name: "enabled",
+          publisher: "sample",
+          version: "1.0.0"
+        }
+      );
+
+      const extensions = InstalledExtensionsService.MergeFromExtensionFolder(
+        [extension],
+        extensionFolder
+      );
+
+      expect(extensions).to.have.length(1);
+      expect(extensions[0].name).to.eq("enabled");
+    });
+  });
+});