Support .nvmrc

.github/workflows/versions.yml

@@ -78,6 +78,21 @@ jobs:
         run: __tests__/verify-node.sh "${{ matrix.node-version }}"
         shell: bash
 
+  version-file:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup node from node version file
+        uses: ./
+        with:
+          node-version-file: '__tests__/data/.nvmrc'
+      - name: Verify node
+        run: __tests__/verify-node.sh 14
+
   node-dist:
     runs-on: ${{ matrix.os }}
     strategy:

README.md

@@ -93,12 +93,13 @@ jobs:
 ## Advanced usage
 
 1. [Check latest version](docs/advanced-usage.md#check-latest-version)
-2. [Using different architectures](docs/advanced-usage.md#architecture)
-3. [Caching packages dependencies](docs/advanced-usage.md#caching-packages-dependencies)
-4. [Using multiple operating systems and architectures](docs/advanced-usage.md#multiple-operating-systems-and-architectures)
-5. [Publishing to npmjs and GPR with npm](docs/advanced-usage.md#publish-to-npmjs-and-gpr-with-npm)
-6. [Publishing to npmjs and GPR with yarn](docs/advanced-usage.md#publish-to-npmjs-and-gpr-with-yarn)
-7. [Using private packages](docs/advanced-usage.md#use-private-packages)
+2. [Using a node version file](docs/advanced-usage.md#node-version-file)
+3. [Using different architectures](docs/advanced-usage.md#architecture)
+4. [Caching packages dependencies](docs/advanced-usage.md#caching-packages-dependencies)
+5. [Using multiple operating systems and architectures](docs/advanced-usage.md#multiple-operating-systems-and-architectures)
+6. [Publishing to npmjs and GPR with npm](docs/advanced-usage.md#publish-to-npmjs-and-gpr-with-npm)
+7. [Publishing to npmjs and GPR with yarn](docs/advanced-usage.md#publish-to-npmjs-and-gpr-with-yarn)
+8. [Using private packages](docs/advanced-usage.md#use-private-packages)
 
 # License
 

__tests__/data/.nvmrc

@@ -0,0 +1 @@
+v14

__tests__/installer.test.ts

@@ -1,12 +1,12 @@
 import * as core from '@actions/core';
 import * as io from '@actions/io';
 import * as tc from '@actions/tool-cache';
+import * as im from '../src/installer';
 import fs from 'fs';
 import cp from 'child_process';
 import osm = require('os');
 import path from 'path';
 import * as main from '../src/main';
-import * as im from '../src/installer';
 import * as auth from '../src/authutil';
 
 let nodeTestManifest = require('./data/versions-manifest.json');
@@ -31,9 +31,11 @@ describe('setup-node', () => {
   let dbgSpy: jest.SpyInstance;
   let whichSpy: jest.SpyInstance;
   let existsSpy: jest.SpyInstance;
+  let readFileSyncSpy: jest.SpyInstance;
   let mkdirpSpy: jest.SpyInstance;
   let execSpy: jest.SpyInstance;
   let authSpy: jest.SpyInstance;
+  let parseNodeVersionSpy: jest.SpyInstance;
 
   beforeEach(() => {
     // @actions/core
@@ -58,6 +60,7 @@ describe('setup-node', () => {
     cacheSpy = jest.spyOn(tc, 'cacheDir');
     getManifestSpy = jest.spyOn(tc, 'getManifestFromRepo');
     getDistSpy = jest.spyOn(im, 'getVersionsFromDist');
+    parseNodeVersionSpy = jest.spyOn(im, 'parseNodeVersionFile');
 
     // io
     whichSpy = jest.spyOn(io, 'which');
@@ -91,6 +94,10 @@ describe('setup-node', () => {
       // uncomment to see debug output
       // process.stderr.write(msg + '\n');
     });
+    warningSpy.mockImplementation(msg => {
+      // uncomment to debug
+      // process.stderr.write('log:' + line + '\n');
+    });
   });
 
   afterEach(() => {
@@ -101,6 +108,7 @@ describe('setup-node', () => {
 
   afterAll(async () => {
     console.log('::stoptoken::'); // Re-enable executing of runner commands when running tests in actions
+    jest.restoreAllMocks();
   }, 100000);
 
   //--------------------------------------------------
@@ -343,7 +351,7 @@ describe('setup-node', () => {
     expect(cnSpy).toHaveBeenCalledWith(`::error::${errMsg}${osm.EOL}`);
   });
 
-  it('Acquires specified architecture of node', async () => {
+  it('acquires specified architecture of node', async () => {
     for (const {arch, version, osSpec} of [
       {arch: 'x86', version: '12.16.2', osSpec: 'win32'},
       {arch: 'x86', version: '14.0.0', osSpec: 'win32'}
@@ -549,6 +557,93 @@ describe('setup-node', () => {
     });
   });
 
+  describe('node-version-file flag', () => {
+    it('not used if node-version is provided', async () => {
+      // Arrange
+      inputs['node-version'] = '12';
+
+      // Act
+      await main.run();
+
+      // Assert
+      expect(parseNodeVersionSpy).toHaveBeenCalledTimes(0);
+    });
+
+    it('not used if node-version-file not provided', async () => {
+      // Act
+      await main.run();
+
+      // Assert
+      expect(parseNodeVersionSpy).toHaveBeenCalledTimes(0);
+    });
+
+    it('reads node-version-file if provided', async () => {
+      // Arrange
+      const versionSpec = 'v14';
+      const versionFile = '.nvmrc';
+      const expectedVersionSpec = '14';
+      process.env['GITHUB_WORKSPACE'] = path.join(__dirname, 'data');
+      inputs['node-version-file'] = versionFile;
+
+      parseNodeVersionSpy.mockImplementation(() => expectedVersionSpec);
+      existsSpy.mockImplementationOnce(
+        input => input === path.join(__dirname, 'data', versionFile)
+      );
+      // Act
+      await main.run();
+
+      // Assert
+      expect(existsSpy).toHaveBeenCalledTimes(1);
+      expect(existsSpy).toHaveReturnedWith(true);
+      expect(parseNodeVersionSpy).toHaveBeenCalledWith(versionSpec);
+      expect(logSpy).toHaveBeenCalledWith(
+        `Resolved ${versionFile} as ${expectedVersionSpec}`
+      );
+    });
+
+    it('both node-version-file and node-version are provided', async () => {
+      inputs['node-version'] = '12';
+      const versionSpec = 'v14';
+      const versionFile = '.nvmrc';
+      const expectedVersionSpec = '14';
+      process.env['GITHUB_WORKSPACE'] = path.join(__dirname, '..');
+      inputs['node-version-file'] = versionFile;
+
+      parseNodeVersionSpy.mockImplementation(() => expectedVersionSpec);
+
+      // Act
+      await main.run();
+
+      // Assert
+      expect(existsSpy).toHaveBeenCalledTimes(0);
+      expect(parseNodeVersionSpy).not.toHaveBeenCalled();
+      expect(warningSpy).toHaveBeenCalledWith(
+        'Both node-version and node-version-file inputs are specified, only node-version will be used'
+      );
+    });
+
+    it('should throw an error if node-version-file is not found', async () => {
+      const versionFile = '.nvmrc';
+      const versionFilePath = path.join(__dirname, '..', versionFile);
+      inputs['node-version-file'] = versionFile;
+
+      inSpy.mockImplementation(name => inputs[name]);
+      existsSpy.mockImplementationOnce(
+        input => input === path.join(__dirname, 'data', versionFile)
+      );
+
+      // Act
+      await main.run();
+
+      // Assert
+      expect(existsSpy).toHaveBeenCalled();
+      expect(existsSpy).toHaveReturnedWith(false);
+      expect(parseNodeVersionSpy).not.toHaveBeenCalled();
+      expect(cnSpy).toHaveBeenCalledWith(
+        `::error::The specified node version file at: ${versionFilePath} does not exist${osm.EOL}`
+      );
+    });
+  });
   describe('LTS version', () => {
     beforeEach(() => {
       os.platform = 'linux';

action.yml

@@ -7,6 +7,8 @@ inputs:
     default: 'false'
   node-version:
     description: 'Version Spec of the version to use.  Examples: 12.x, 10.15.1, >=10.15.0'
+  node-version-file:
+    description: 'File containing the version Spec of the version to use.  Examples: .nvmrc, .node-version'
   architecture:
     description: 'Target architecture for Node to use. Examples: x86, x64. Will use system architecture by default.'
   check-latest:

dist/setup/index.js

@@ -6938,9 +6938,13 @@ var __importStar = (this && this.__importStar) || function (mod) {
     result["default"] = mod;
     return result;
 };
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
 Object.defineProperty(exports, "__esModule", { value: true });
 const core = __importStar(__webpack_require__(470));
 const installer = __importStar(__webpack_require__(923));
+const fs_1 = __importDefault(__webpack_require__(747));
 const auth = __importStar(__webpack_require__(749));
 const path = __importStar(__webpack_require__(622));
 const cache_restore_1 = __webpack_require__(409);
@@ -6953,10 +6957,7 @@ function run() {
             // Version is optional.  If supplied, install / use from the tool cache
             // If not supplied then task is still used to setup proxy, auth, etc...
             //
-            let version = core.getInput('node-version');
-            if (!version) {
-                version = core.getInput('version');
-            }
+            let version = resolveVersionInput();
             let arch = core.getInput('architecture');
             const cache = core.getInput('cache');
             // if architecture supplied but node-version is not
@@ -6991,8 +6992,8 @@ function run() {
             core.info(`##[add-matcher]${path.join(matchersPath, 'eslint-stylish.json')}`);
             core.info(`##[add-matcher]${path.join(matchersPath, 'eslint-compact.json')}`);
         }
-        catch (error) {
-            core.setFailed(error.message);
+        catch (err) {
+            core.setFailed(err.message);
         }
     });
 }
@@ -7001,6 +7002,25 @@ function isGhes() {
     const ghUrl = new url_1.URL(process.env['GITHUB_SERVER_URL'] || 'https://github.com');
     return ghUrl.hostname.toUpperCase() !== 'github.com';
 }
+function resolveVersionInput() {
+    let version = core.getInput('node-version') || core.getInput('version');
+    const versionFileInput = core.getInput('node-version-file');
+    if (version && versionFileInput) {
+        core.warning('Both node-version and node-version-file inputs are specified, only node-version will be used');
+    }
+    if (version) {
+        return version;
+    }
+    if (versionFileInput) {
+        const versionFilePath = path.join(process.env.GITHUB_WORKSPACE, versionFileInput);
+        if (!fs_1.default.existsSync(versionFilePath)) {
+            throw new Error(`The specified node version file at: ${versionFilePath} does not exist`);
+        }
+        version = installer.parseNodeVersionFile(fs_1.default.readFileSync(versionFilePath, 'utf8'));
+        core.info(`Resolved ${versionFileInput} as ${version}`);
+    }
+    return version;
+}
 
 
 /***/ }),
@@ -65340,7 +65360,7 @@ exports.NOOP_TEXT_MAP_PROPAGATOR = new NoopTextMapPropagator();
 /* 921 */,
 /* 922 */,
 /* 923 */
-/***/ (function(module, exports, __webpack_require__) {
+/***/ (function(__unusedmodule, exports, __webpack_require__) {
 
 "use strict";
 
@@ -65617,7 +65637,7 @@ function queryDistForMatch(versionSpec, arch = os.arch()) {
                 throw new Error(`Unexpected OS '${osPlat}'`);
         }
         let versions = [];
-        let nodeVersions = yield module.exports.getVersionsFromDist();
+        let nodeVersions = yield getVersionsFromDist();
         nodeVersions.forEach((nodeVersion) => {
             // ensure this version supports your os and platform
             if (nodeVersion.files.indexOf(dataFileName) >= 0) {
@@ -65705,6 +65725,14 @@ function translateArchToDistUrl(arch) {
             return arch;
     }
 }
+function parseNodeVersionFile(contents) {
+    let nodeVersion = contents.trim();
+    if (/^v\d/.test(nodeVersion)) {
+        nodeVersion = nodeVersion.substring(1);
+    }
+    return nodeVersion;
+}
+exports.parseNodeVersionFile = parseNodeVersionFile;
 
 
 /***/ }),

docs/advanced-usage.md

@@ -19,6 +19,22 @@ steps:
 - run: npm test
 ```
 
+## Node version file
+
+The `node-version-file` input accepts a path to a file containing the version of Node.js to be used by a project, for example `.nvmrc` or `.node-version`. If both the `node-version` and the `node-version-file` inputs are provided then the `node-version` input is used. 
+See [supported version syntax](https://github.com/actions/setup-node#supported-version-syntax) 
+> The action will search for the node version file relative to the repository root.
+
+```yaml
+steps:
+- uses: actions/checkout@v2
+- uses: actions/setup-node@v2
+  with:
+    node-version-file: '.nvmrc'
+- run: npm install
+- run: npm test
+```
+
 ## Architecture
 
 You can use any of the [supported operating systems](https://docs.github.com/en/actions/reference/virtual-environments-for-github-hosted-runners), and the compatible `architecture` can be selected using `architecture`. Values are `x86`, `x64`, `arm64`, `armv6l`, `armv7l`, `ppc64le`, `s390x` (not all of the architectures are available on all platforms).

src/installer.ts

@@ -371,7 +371,7 @@ async function queryDistForMatch(
   }
 
   let versions: string[] = [];
-  let nodeVersions = await module.exports.getVersionsFromDist();
+  let nodeVersions = await getVersionsFromDist();
 
   nodeVersions.forEach((nodeVersion: INodeVersion) => {
     // ensure this version supports your os and platform
@@ -464,3 +464,12 @@ function translateArchToDistUrl(arch: string): string {
       return arch;
   }
 }
+
+export function parseNodeVersionFile(contents: string): string {
+  let nodeVersion = contents.trim();
+
+  if (/^v\d/.test(nodeVersion)) {
+    nodeVersion = nodeVersion.substring(1);
+  }
+  return nodeVersion;
+}