feat: set node-version action output

closes #150

action.yml

@@ -23,6 +23,9 @@ inputs:
   version:
     description: 'Deprecated. Use node-version instead. Will not be supported after October 1, 2019'
     deprecationMessage: 'The version property will not be supported after October 1, 2019. Use node-version instead'
+outputs:
+  node-version:
+    description: "The installed node version."
 runs:
   using: 'node12'
   main: 'dist/index.js'

dist/index.js

@@ -4628,6 +4628,7 @@ var __importStar = (this && this.__importStar) || function (mod) {
 };
 Object.defineProperty(exports, "__esModule", { value: true });
 const core = __importStar(__webpack_require__(470));
+const exec = __importStar(__webpack_require__(986));
 const installer = __importStar(__webpack_require__(749));
 const auth = __importStar(__webpack_require__(202));
 const path = __importStar(__webpack_require__(622));
@@ -4650,6 +4651,16 @@ function run() {
                 const checkLatest = (core.getInput('check-latest') || 'false').toUpperCase() === 'TRUE';
                 yield installer.getNode(version, stable, checkLatest, auth);
             }
+            // Output version of node and npm that are being used
+            let installedVersion = '';
+            yield exec.exec('node', ['--version'], {
+                listeners: {
+                    stdout: data => {
+                        installedVersion += data.toString();
+                    }
+                }
+            });
+            core.setOutput('node-version', installedVersion);
             const registryUrl = core.getInput('registry-url');
             const alwaysAuth = core.getInput('always-auth');
             if (registryUrl) {

src/main.ts

@@ -1,4 +1,5 @@
 import * as core from '@actions/core';
+import * as exec from '@actions/exec';
 import * as installer from './installer';
 import * as auth from './authutil';
 import * as path from 'path';
@@ -24,6 +25,17 @@ export async function run() {
       await installer.getNode(version, stable, checkLatest, auth);
     }
 
+    // Output version of node and npm that are being used
+    let installedVersion = '';
+    await exec.exec('node', ['--version'], {
+      listeners: {
+        stdout: data => {
+          installedVersion += data.toString();
+        }
+      }
+    });
+    core.setOutput('node-version', installedVersion);
+
     const registryUrl: string = core.getInput('registry-url');
     const alwaysAuth: string = core.getInput('always-auth');
     if (registryUrl) {