feat: fallback to "raw" endpoint for manifest when rate limit is reached

__tests__/install-python.test.ts

@@ -0,0 +1,58 @@
+import {
+  getManifest,
+  getManifestFromRepo,
+  getManifestFromURL
+} from '../src/install-python';
+import * as httpm from '@actions/http-client';
+import * as tc from '@actions/tool-cache';
+
+jest.mock('@actions/http-client');
+jest.mock('@actions/tool-cache');
+
+const mockManifest = [{version: '1.0.0'}];
+
+describe('getManifest', () => {
+  it('should return manifest from repo', async () => {
+    (tc.getManifestFromRepo as jest.Mock).mockResolvedValue(mockManifest);
+    const manifest = await getManifest();
+    expect(manifest).toEqual(mockManifest);
+  });
+
+  it('should return manifest from URL if repo fetch fails', async () => {
+    (tc.getManifestFromRepo as jest.Mock).mockRejectedValue(
+      new Error('Fetch failed')
+    );
+    (httpm.HttpClient.prototype.getJson as jest.Mock).mockResolvedValue({
+      result: mockManifest
+    });
+    const manifest = await getManifest();
+    expect(manifest).toEqual(mockManifest);
+  });
+});
+
+describe('getManifestFromRepo', () => {
+  it('should return manifest from repo', async () => {
+    (tc.getManifestFromRepo as jest.Mock).mockResolvedValue(mockManifest);
+    const manifest = await getManifestFromRepo();
+    expect(manifest).toEqual(mockManifest);
+  });
+});
+
+describe('getManifestFromURL', () => {
+  it('should return manifest from URL', async () => {
+    (httpm.HttpClient.prototype.getJson as jest.Mock).mockResolvedValue({
+      result: mockManifest
+    });
+    const manifest = await getManifestFromURL();
+    expect(manifest).toEqual(mockManifest);
+  });
+
+  it('should throw error if unable to get manifest from URL', async () => {
+    (httpm.HttpClient.prototype.getJson as jest.Mock).mockResolvedValue({
+      result: null
+    });
+    await expect(getManifestFromURL()).rejects.toThrow(
+      'Unable to get manifest from'
+    );
+  });
+});

dist/setup/index.js

@@ -91388,11 +91388,12 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, ge
     });
 };
 Object.defineProperty(exports, "__esModule", ({ value: true }));
-exports.installCpythonFromRelease = exports.getManifest = exports.findReleaseFromManifest = exports.MANIFEST_URL = void 0;
+exports.installCpythonFromRelease = exports.getManifestFromURL = exports.getManifestFromRepo = exports.getManifest = exports.findReleaseFromManifest = exports.MANIFEST_URL = void 0;
 const path = __importStar(__nccwpck_require__(1017));
 const core = __importStar(__nccwpck_require__(2186));
 const tc = __importStar(__nccwpck_require__(7784));
 const exec = __importStar(__nccwpck_require__(1514));
+const httpm = __importStar(__nccwpck_require__(6255));
 const utils_1 = __nccwpck_require__(1314);
 const TOKEN = core.getInput('token');
 const AUTH = !TOKEN ? undefined : `token ${TOKEN}`;
@@ -91411,10 +91412,37 @@ function findReleaseFromManifest(semanticVersionSpec, architecture, manifest) {
 }
 exports.findReleaseFromManifest = findReleaseFromManifest;
 function getManifest() {
+    return __awaiter(this, void 0, void 0, function* () {
+        try {
+            return yield getManifestFromRepo();
+        }
+        catch (err) {
+            core.debug('Fetching the manifest via the API failed.');
+            if (err instanceof Error) {
+                core.debug(err.message);
+            }
+        }
+        return yield getManifestFromURL();
+    });
+}
+exports.getManifest = getManifest;
+function getManifestFromRepo() {
     core.debug(`Getting manifest from ${MANIFEST_REPO_OWNER}/${MANIFEST_REPO_NAME}@${MANIFEST_REPO_BRANCH}`);
     return tc.getManifestFromRepo(MANIFEST_REPO_OWNER, MANIFEST_REPO_NAME, AUTH, MANIFEST_REPO_BRANCH);
 }
-exports.getManifest = getManifest;
+exports.getManifestFromRepo = getManifestFromRepo;
+function getManifestFromURL() {
+    return __awaiter(this, void 0, void 0, function* () {
+        core.debug('Falling back to fetching the manifest using raw URL.');
+        const http = new httpm.HttpClient('tool-cache');
+        const response = yield http.getJson(exports.MANIFEST_URL);
+        if (!response.result) {
+            throw new Error(`Unable to get manifest from ${exports.MANIFEST_URL}`);
+        }
+        return response.result;
+    });
+}
+exports.getManifestFromURL = getManifestFromURL;
 function installPython(workingDirectory) {
     return __awaiter(this, void 0, void 0, function* () {
         const options = {

src/install-python.ts

@@ -2,6 +2,7 @@ import * as path from 'path';
 import * as core from '@actions/core';
 import * as tc from '@actions/tool-cache';
 import * as exec from '@actions/exec';
+import * as httpm from '@actions/http-client';
 import {ExecOptions} from '@actions/exec/lib/interfaces';
 import {IS_WINDOWS, IS_LINUX} from './utils';
 
@@ -31,7 +32,19 @@ export async function findReleaseFromManifest(
   return foundRelease;
 }
 
-export function getManifest(): Promise<tc.IToolRelease[]> {
+export async function getManifest(): Promise<tc.IToolRelease[]> {
+  try {
+    return await getManifestFromRepo();
+  } catch (err) {
+    core.debug('Fetching the manifest via the API failed.');
+    if (err instanceof Error) {
+      core.debug(err.message);
+    }
+  }
+  return await getManifestFromURL();
+}
+
+export function getManifestFromRepo(): Promise<tc.IToolRelease[]> {
   core.debug(
     `Getting manifest from ${MANIFEST_REPO_OWNER}/${MANIFEST_REPO_NAME}@${MANIFEST_REPO_BRANCH}`
   );
@@ -43,6 +56,17 @@ export function getManifest(): Promise<tc.IToolRelease[]> {
   );
 }
 
+export async function getManifestFromURL(): Promise<tc.IToolRelease[]> {
+  core.debug('Falling back to fetching the manifest using raw URL.');
+
+  const http: httpm.HttpClient = new httpm.HttpClient('tool-cache');
+  const response = await http.getJson<tc.IToolRelease[]>(MANIFEST_URL);
+  if (!response.result) {
+    throw new Error(`Unable to get manifest from ${MANIFEST_URL}`);
+  }
+  return response.result;
+}
+
 async function installPython(workingDirectory: string) {
   const options: ExecOptions = {
     cwd: workingDirectory,