initial implementation

carries most of the logic used across our actions

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

__tests__/github.test.ts

@@ -0,0 +1,14 @@
+import {describe, expect, jest, it} from '@jest/globals';
+import * as github from '../src/github';
+
+import * as repoFixture from './fixtures/repo.json';
+jest.spyOn(github, 'repo').mockImplementation((): Promise<github.ReposGetResponseData> => {
+  return <Promise<github.ReposGetResponseData>>(repoFixture as unknown);
+});
+
+describe('repo', () => {
+  it('returns GitHub repository', async () => {
+    const repo = await github.repo(process.env.GITHUB_TOKEN || '');
+    expect(repo.name).not.toBeNull();
+  });
+});