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/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import { vi } from 'vitest';
import * as fs from 'fs';
import * as os from 'os';
import * as path from 'path';
import {
EXTENSIONS_CONFIG_FILENAME,
EXTENSIONS_DIRECTORY_NAME,
loadExtensions,
} from './extension.js';
vi.mock('os', async (importOriginal) => {
const os = await importOriginal<typeof import('os')>();
return {
...os,
homedir: vi.fn(),
};
});
describe('loadExtensions', () => {
let tempWorkspaceDir: string;
let tempHomeDir: string;
beforeEach(() => {
tempWorkspaceDir = fs.mkdtempSync(
path.join(os.tmpdir(), 'gemini-cli-test-workspace-'),
);
tempHomeDir = fs.mkdtempSync(
path.join(os.tmpdir(), 'gemini-cli-test-home-'),
);
vi.mocked(os.homedir).mockReturnValue(tempHomeDir);
});
afterEach(() => {
fs.rmSync(tempWorkspaceDir, { recursive: true, force: true });
fs.rmSync(tempHomeDir, { recursive: true, force: true });
});
it('should deduplicate extensions, prioritizing the workspace directory', () => {
// Create extensions in the workspace
const workspaceExtensionsDir = path.join(
tempWorkspaceDir,
EXTENSIONS_DIRECTORY_NAME,
);
fs.mkdirSync(workspaceExtensionsDir, { recursive: true });
createExtension(workspaceExtensionsDir, 'ext1', '1.0.0');
createExtension(workspaceExtensionsDir, 'ext2', '2.0.0');
// Create extensions in the home directory
const homeExtensionsDir = path.join(tempHomeDir, EXTENSIONS_DIRECTORY_NAME);
fs.mkdirSync(homeExtensionsDir, { recursive: true });
createExtension(homeExtensionsDir, 'ext1', '1.1.0'); // Duplicate that should be ignored
createExtension(homeExtensionsDir, 'ext3', '3.0.0');
const extensions = loadExtensions(tempWorkspaceDir);
expect(extensions).toHaveLength(3);
expect(extensions.find((e) => e.name === 'ext1')?.version).toBe('1.0.0'); // Workspace version should be kept
expect(extensions.find((e) => e.name === 'ext2')?.version).toBe('2.0.0');
expect(extensions.find((e) => e.name === 'ext3')?.version).toBe('3.0.0');
});
});
function createExtension(
extensionsDir: string,
name: string,
version: string,
): void {
const extDir = path.join(extensionsDir, name);
fs.mkdirSync(extDir);
fs.writeFileSync(
path.join(extDir, EXTENSIONS_CONFIG_FILENAME),
JSON.stringify({ name, version }),
);
}
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