fix(getConfig): add option for a default module configuration

src/__tests__/configuration.spec.ts

@@ -4,16 +4,24 @@ import { describe, expect, it, vi } from 'vitest';
 describe('configuration', () => {
   const cwd = process.cwd();
 
-  it('should return an empty object if no configuration file exists', async () => {
-    vi.spyOn(process, 'cwd').mockImplementation(() => cwd);
-    const config = await getConfig('plugin');
-    expect(config).toEqual({});
-  });
+  describe('load module configurations', () => {
+    it('should return an empty object if no configuration file exists', async () => {
+      vi.spyOn(process, 'cwd').mockImplementation(() => cwd);
+      const config = await getConfig('plugin');
+      expect(config).toEqual({});
+    });
+
+    it('should merge configurations and defaults', async () => {
+      vi.spyOn(process, 'cwd').mockImplementation(() => cwd);
+      const config = await getConfig('plugin', { foo: true });
+      expect(config).toEqual({ foo: true });
+    });
 
-  it('should load module configurations', async () => {
-    vi.spyOn(process, 'cwd').mockImplementation(() => cwd + '/src/__tests__');
-    const config = await getConfig('plugin');
+    it('should load module configurations', async () => {
+      vi.spyOn(process, 'cwd').mockImplementation(() => cwd + '/src/__tests__');
+      const config = await getConfig('plugin');
 
-    expect(config).toEqual({ foo: true });
+      expect(config).toEqual({ foo: true });
+    });
   });
 });

src/configuration.ts

@@ -115,8 +115,9 @@ export class CloudConfiguration {
   }
 }
 
-export async function getConfig(moduleName: string): Promise<ModuleConfiguration> {
+export async function getConfig<T extends Record<string, any>>(moduleName: string, defaults: T = null): Promise<ModuleConfiguration | T> {
   const filePath = join(process.cwd(), 'configuration', `${moduleName}.json`);
   const config = readJson<ModuleConfiguration>(filePath);
-  return config || {};
+
+  return Object.assign({}, config, defaults);
 }