Fix setOutput

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

__tests__/context.test.ts

@@ -1,4 +1,5 @@
 import * as fs from 'fs';
+import * as os from 'os';
 import * as path from 'path';
 
 import * as context from '../src/context';
@@ -554,6 +555,27 @@ 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()}`;
@@ -562,3 +584,11 @@ 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

@@ -2419,7 +2419,7 @@ function run() {
             if (imageID) {
                 core.startGroup(`Extracting digest`);
                 core.info(`${imageID}`);
-                core.setOutput('digest', imageID);
+                context.setOutput('digest', imageID);
                 core.endGroup();
             }
         }
@@ -13004,7 +13004,7 @@ 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 = exports.tmpNameSync = exports.tmpDir = exports.defaultContext = void 0;
+exports.setOutput = exports.asyncForEach = exports.getInputList = exports.getArgs = exports.getInputs = exports.tmpNameSync = exports.tmpDir = exports.defaultContext = void 0;
 const sync_1 = __importDefault(__webpack_require__(750));
 const fs = __importStar(__webpack_require__(747));
 const os = __importStar(__webpack_require__(87));
@@ -13012,6 +13012,7 @@ const path = __importStar(__webpack_require__(622));
 const semver = __importStar(__webpack_require__(383));
 const tmp = __importStar(__webpack_require__(517));
 const core = __importStar(__webpack_require__(186));
+const command_1 = __webpack_require__(351);
 const github = __importStar(__webpack_require__(438));
 const buildx = __importStar(__webpack_require__(295));
 let _defaultContext, _tmpDir;
@@ -13189,6 +13190,11 @@ 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

@@ -6,6 +6,7 @@ import * as semver from 'semver';
 import * as tmp from 'tmp';
 
 import * as core from '@actions/core';
+import {issueCommand} from '@actions/core/lib/command';
 import * as github from '@actions/github';
 
 import * as buildx from './buildx';
@@ -205,3 +206,8 @@ 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);
+}

src/main.ts

@@ -36,7 +36,7 @@ async function run(): Promise<void> {
     if (imageID) {
       core.startGroup(`Extracting digest`);
       core.info(`${imageID}`);
-      core.setOutput('digest', imageID);
+      context.setOutput('digest', imageID);
       core.endGroup();
     }
   } catch (error) {