Fix setOutput

__tests__/context.test.ts

@@ -1,3 +1,4 @@
+import * as os from 'os';
 import * as context from '../src/context';
 
 describe('getInputList', () => {
@@ -166,6 +167,27 @@ describe('asyncForEach', () => {
   });
 });
 
+describe('setOutput', () => {
+  beforeEach(() => {
+    process.stdout.write = jest.fn();
+  });
+
+  it('setOutput produces the correct command', () => {
+    context.setOutput('some output', 'some value');
+    assertWriteCalls([`::set-output name=some output::some value${os.EOL}`]);
+  });
+
+  it('setOutput handles bools', () => {
+    context.setOutput('some output', false);
+    assertWriteCalls([`::set-output name=some output::false${os.EOL}`]);
+  });
+
+  it('setOutput handles numbers', () => {
+    context.setOutput('some output', 1.01);
+    assertWriteCalls([`::set-output name=some output::1.01${os.EOL}`]);
+  });
+});
+
 // See: https://github.com/actions/toolkit/blob/master/packages/core/src/core.ts#L67
 function getInputName(name: string): string {
   return `INPUT_${name.replace(/ /g, '_').toUpperCase()}`;
@@ -174,3 +196,11 @@ function getInputName(name: string): string {
 function setInput(name: string, value: string): void {
   process.env[getInputName(name)] = value;
 }
+
+// Assert that process.stdout.write calls called only with the given arguments.
+function assertWriteCalls(calls: string[]): void {
+  expect(process.stdout.write).toHaveBeenCalledTimes(calls.length);
+  for (let i = 0; i < calls.length; i++) {
+    expect(process.stdout.write).toHaveBeenNthCalledWith(i + 1, calls[i]);
+  }
+}

dist/index.js

@@ -5716,9 +5716,10 @@ var __importDefault = (this && this.__importDefault) || function (mod) {
     return (mod && mod.__esModule) ? mod : { "default": mod };
 };
 Object.defineProperty(exports, "__esModule", { value: true });
-exports.asyncForEach = exports.getInputList = exports.getArgs = exports.getInputs = void 0;
+exports.setOutput = exports.asyncForEach = exports.getInputList = exports.getArgs = exports.getInputs = void 0;
 const sync_1 = __importDefault(__webpack_require__(750));
 const core = __importStar(__webpack_require__(186));
+const command_1 = __webpack_require__(241);
 function getInputs() {
     return __awaiter(this, void 0, void 0, function* () {
         return {
@@ -5806,6 +5807,11 @@ exports.asyncForEach = (array, callback) => __awaiter(void 0, void 0, void 0, fu
         yield callback(array[index], index, array);
     }
 });
+// FIXME: Temp fix https://github.com/actions/toolkit/issues/777
+function setOutput(name, value) {
+    command_1.issueCommand('set-output', { name }, value);
+}
+exports.setOutput = setOutput;
 //# sourceMappingURL=context.js.map
 
 /***/ }),

src/context.ts

@@ -1,6 +1,7 @@
 import csvparse from 'csv-parse/lib/sync';
 import * as buildx from './buildx';
 import * as core from '@actions/core';
+import {issueCommand} from '@actions/core/lib/command';
 
 export interface Inputs {
   builder: string;
@@ -96,3 +97,8 @@ export const asyncForEach = async (array, callback) => {
     await callback(array[index], index, array);
   }
 };
+
+// FIXME: Temp fix https://github.com/actions/toolkit/issues/777
+export function setOutput(name: string, value: any): void {
+  issueCommand('set-output', {name}, value);
+}