Add support for v8-canary, nightly and rc (#655)

Update CODEOWNERS

.github/workflows/basic-validation.yml

@@ -0,0 +1,17 @@
+name: Basic validation
+
+on:
+  pull_request:
+    paths-ignore:
+      - '**.md'
+  push:
+    branches:
+      - main
+      - releases/*
+    paths-ignore:
+      - '**.md'
+
+jobs:
+  call-basic-validation:
+    name: Basic validation
+    uses: actions/reusable-workflows/.github/workflows/basic-validation.yml@main

.github/workflows/build-test.yml

@@ -1,30 +0,0 @@
-name: build-test
-
-on:
-  pull_request:
-    paths-ignore:
-      - '**.md'
-  push:
-    branches:
-      - main
-      - releases/*
-    paths-ignore:
-      - '**.md'
-
-jobs:
-  build:
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest]
-    steps:
-      - uses: actions/checkout@v3
-      - name: Setup Node 16.x
-        uses: actions/setup-node@v3
-        with:
-          node-version: 16.x
-          cache: npm
-      - run: npm ci
-      - run: npm run build
-      - run: npm run format-check
-      - run: npm test

.github/workflows/check-dist.yml

@@ -1,8 +1,3 @@
-# `dist/index.js` is a special file in Actions.
-# When you reference an action with `uses:` in a workflow,
-# `index.js` is the code that will run.
-# For our project, we generate this file through a build process from other source files.
-# We need to make sure the checked-in `index.js` actually matches what we expect it to be.
 name: Check dist/
 
 on:
@@ -17,36 +12,6 @@ on:
   workflow_dispatch:
 
 jobs:
-  check-dist:
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Setup Node 16.x
-        uses: actions/setup-node@v3
-        with:
-          node-version: 16.x
-          cache: npm
-
-      - name: Install dependencies
-        run: npm ci
-
-      - name: Rebuild the dist/ directory
-        run: npm run build
-
-      - name: Compare the expected and actual dist/ directories
-        run: |
-          if [ "$(git diff --ignore-space-at-eol dist/ | wc -l)" -gt "0" ]; then
-            echo "Detected uncommitted changes after build.  See status below:"
-            git diff
-            exit 1
-          fi
-        id: diff
-
-      # If index.js was different than expected, upload the expected version as an artifact
-      - uses: actions/upload-artifact@v3
-        if: ${{ failure() && steps.diff.conclusion == 'failure' }}
-        with:
-          name: dist
-          path: dist/
+  call-check-dist:
+    name: Check dist/
+    uses: actions/reusable-workflows/.github/workflows/check-dist.yml@main

.github/workflows/codeql-analysis.yml

@@ -0,0 +1,14 @@
+name: CodeQL analysis
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+  schedule:
+    - cron: '0 3 * * 0'
+
+jobs:
+  call-codeQL-analysis:
+    name: CodeQL analysis 
+    uses: actions/reusable-workflows/.github/workflows/codeql-analysis.yml@main

.github/workflows/e2e-cache.yml

@@ -75,7 +75,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        node-version: [12, 14, 16]
+        node-version: [14, 16]
     steps:
       - uses: actions/checkout@v3
       - name: Yarn version

.github/workflows/licensed.yml

@@ -7,18 +7,9 @@ on:
   pull_request:
     branches:
       - main
+  workflow_dispatch:
 
 jobs:
-  test:
-    runs-on: ubuntu-latest
-    name: Check licenses
-    steps:
-      - uses: actions/checkout@v3
-      - run: npm ci
-      - name: Install licensed
-        run: |
-          cd $RUNNER_TEMP
-          curl -Lfs -o licensed.tar.gz https://github.com/github/licensed/releases/download/3.4.4/licensed-3.4.4-linux-x64.tar.gz
-          sudo tar -xzf licensed.tar.gz
-          sudo mv licensed /usr/local/bin/licensed
-      - run: licensed status
+  call-licensed:
+    name: Licensed
+    uses: actions/reusable-workflows/.github/workflows/licensed.yml@main

.github/workflows/proxy.yml

@@ -19,7 +19,7 @@ jobs:
       options: --dns 127.0.0.1
     services:
       squid-proxy:
-        image: datadog/squid:latest
+        image: ubuntu/squid:latest
         ports:
           - 3128:3128
     env:

.github/workflows/release-new-action-version.yml

@@ -1,4 +1,5 @@
 name: Release new action version
+
 on:
   release:
     types: [released]
@@ -21,7 +22,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Update the ${{ env.TAG_NAME }} tag
-      uses: actions/publish-action@v0.1.0
+      uses: actions/publish-action@v0.2.1
       with:
         source-tag: ${{ env.TAG_NAME }}
         slack-webhook: ${{ secrets.SLACK_WEBHOOK }}

.github/workflows/versions.yml

@@ -51,6 +51,66 @@ jobs:
           __tests__/verify-node.sh "${BASH_REMATCH[1]}"
         shell: bash
 
+  v8-canary-syntax:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+        node-version: ['20-v8-canary', '20.0.0-v8-canary','20.0.0-v8-canary20221103f7e2421e91']
+    steps:
+      - uses: actions/checkout@v3
+      - name: Setup Node
+        uses: ./
+        with:
+          node-version: ${{ matrix.node-version }}
+      - name: Verify node and npm
+        run: |
+          canaryVersion="${{ matrix.node-version }}"
+          majorVersion=$(echo $canaryVersion | cut -d- -f1)
+          __tests__/verify-node.sh "$majorVersion"
+        shell: bash
+
+  nightly-syntax:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+        node-version: [16.0.0-nightly20210420a0261d231c, 17-nightly, 18.0.0-nightly]
+    steps:
+      - uses: actions/checkout@v3
+      - name: Setup Node
+        uses: ./
+        with:
+          node-version: ${{ matrix.node-version }}
+      - name: Verify node and npm
+        run: |
+          nightlyVersion="${{ matrix.node-version }}"
+          majorVersion=$(echo $nightlyVersion | cut -d- -f1)
+          __tests__/verify-node.sh "$majorVersion"
+        shell: bash
+
+  rc-syntax:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+        node-version: [16.0.0-rc.1, 18.0.0-rc.2, 19.0.0-rc.0]
+    steps:
+      - uses: actions/checkout@v3
+      - name: Setup Node
+        uses: ./
+        with:
+          node-version: ${{ matrix.node-version }}
+      - name: Verify node and npm
+        run: |
+          rcVersion="${{ matrix.node-version }}"
+          majorVersion=$(echo $rcVersion | cut -d- -f1)
+          __tests__/verify-node.sh "$majorVersion"
+        shell: bash
+
   manifest:
     runs-on: ${{ matrix.os }}
     strategy:
@@ -92,9 +152,12 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        node-version-file: [.nvmrc, .tool-versions]
+        node-version-file: [.nvmrc, .tool-versions, package.json]
     steps:
       - uses: actions/checkout@v3
+      - name: Remove volta from package.json
+        shell: bash
+        run: cat <<< "$(jq 'del(.volta)' ./__tests__/data/package.json)" > ./__tests__/data/package.json
       - name: Setup node from node version file
         uses: ./
         with:
@@ -102,6 +165,21 @@ jobs:
       - name: Verify node
         run: __tests__/verify-node.sh 14
 
+  version-file-volta:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ ubuntu-latest, windows-latest, macos-latest ]
+    steps:
+      - uses: actions/checkout@v3
+      - name: Setup node from node version file
+        uses: ./
+        with:
+          node-version-file: '__tests__/data/package.json'
+      - name: Verify node
+        run: __tests__/verify-node.sh 16
+
   node-dist:
     runs-on: ${{ matrix.os }}
     strategy:
@@ -160,7 +238,7 @@ jobs:
       - name: Get node version
         run: |
           latestNodeVersion=$(curl https://nodejs.org/dist/index.json | jq -r '. [0].version')
-          echo "::set-output name=LATEST_NODE_VERSION::$latestNodeVersion"
+          echo "LATEST_NODE_VERSION=$latestNodeVersion" >> $GITHUB_OUTPUT
         id: version
         shell: bash
       - uses: actions/checkout@v3
@@ -171,7 +249,7 @@ jobs:
       - name: Retrieve version after install
         run: |
           updatedVersion=$(echo $(node --version))
-          echo "::set-output name=NODE_VERSION_UPDATED::$updatedVersion"
+          echo "NODE_VERSION_UPDATED=$updatedVersion" >> $GITHUB_OUTPUT
         id: updatedVersion
         shell: bash
       - name: Compare versions

.licenses/npm/@actions/cache.dep.yml

@@ -1,6 +1,6 @@
 ---
 name: "@actions/cache"
-version: 3.0.0
+version: 3.0.4
 type: npm
 summary: Actions cache lib
 homepage: https://github.com/actions/toolkit/tree/main/packages/cache

.licenses/npm/@actions/core.dep.yml

@@ -1,6 +1,6 @@
 ---
 name: "@actions/core"
-version: 1.6.0
+version: 1.10.0
 type: npm
 summary: Actions core lib
 homepage: https://github.com/actions/toolkit/tree/main/packages/core

.licenses/npm/minimatch.dep.yml

@@ -1,6 +1,6 @@
 ---
 name: minimatch
-version: 3.0.4
+version: 3.1.2
 type: npm
 summary: a glob matcher in javascript
 homepage: https://github.com/isaacs/minimatch#readme

CODEOWNERS

@@ -1 +1 @@
-* @actions/actions-service
+* @actions/setup-actions-team

README.md

@@ -31,7 +31,7 @@ The `node-version` input is optional. If not supplied, the node version from PAT
 
 The action will first check the local cache for a semver match. If unable to find a specific version in the cache, the action will attempt to download a version of Node.js. It will pull LTS versions from [node-versions releases](https://github.com/actions/node-versions/releases) and on miss or failure will fall back to the previous behavior of downloading directly from [node dist](https://nodejs.org/dist/).
 
-For information regarding locally cached versions of Node.js on GitHub hosted runners, check out [GitHub Actions Virtual Environments](https://github.com/actions/virtual-environments).
+For information regarding locally cached versions of Node.js on GitHub hosted runners, check out [GitHub Actions Runner Images](https://github.com/actions/runner-images).
 
 ### Supported version syntax
 
@@ -44,7 +44,7 @@ Examples:
  - NVM LTS syntax: `lts/erbium`, `lts/fermium`, `lts/*`, `lts/-n`
  - Latest release: `*` or `latest`/`current`/`node`
 
-**Note:** Like the other values, `*` will get the latest [locally-cached Node.js version](https://github.com/actions/virtual-environments/blob/main/images/linux/Ubuntu2004-Readme.md#nodejs), or the latest version from [actions/node-versions](https://github.com/actions/node-versions/blob/main/versions-manifest.json), depending on the [`check-latest`](docs/advanced-usage.md#check-latest-version) input.
+**Note:** Like the other values, `*` will get the latest [locally-cached Node.js version](https://github.com/actions/runner-images/blob/main/images/linux/Ubuntu2204-Readme.md#nodejs), or the latest version from [actions/node-versions](https://github.com/actions/node-versions/blob/main/versions-manifest.json), depending on the [`check-latest`](docs/advanced-usage.md#check-latest-version) input.
 
 `current`/`latest`/`node` always resolve to the latest [dist version](https://nodejs.org/dist/index.json).
 That version is then downloaded from actions/node-versions if possible, or directly from Node.js if not.
@@ -111,16 +111,34 @@ jobs:
       - run: npm test
 ```
 
+## Using `setup-node` on GHES
+
+`setup-node` comes pre-installed on the appliance with GHES if Actions is enabled. When dynamically downloading Nodejs distributions, `setup-node` downloads distributions from [`actions/node-versions`](https://github.com/actions/node-versions) on github.com (outside of the appliance). These calls to `actions/node-versions` are made via unauthenticated requests, which are limited to [60 requests per hour per IP](https://docs.github.com/en/rest/overview/resources-in-the-rest-api#rate-limiting). If more requests are made within the time frame, then you will start to see rate-limit errors during downloading that looks like: `##[error]API rate limit exceeded for...`. After that error the action will try to download versions directly from the official site, but it also can have rate limit so it's better to put token.
+
+To get a higher rate limit, you can [generate a personal access token on github.com](https://github.com/settings/tokens/new) and pass it as the `token` input for the action:
+
+```yaml
+uses: actions/setup-node@v3
+with:
+  token: ${{ secrets.GH_DOTCOM_TOKEN }}
+  node-version: 16
+```
+
+If the runner is not able to access github.com, any Nodejs versions requested during a workflow run must come from the runner's tool cache. See "[Setting up the tool cache on self-hosted runners without internet access](https://docs.github.com/en/enterprise-server@3.2/admin/github-actions/managing-access-to-actions-from-githubcom/setting-up-the-tool-cache-on-self-hosted-runners-without-internet-access)" for more information.
+
 ## Advanced usage
 
-1. [Check latest version](docs/advanced-usage.md#check-latest-version)
-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 data](docs/advanced-usage.md#caching-packages-data)
-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)
+ - [Check latest version](docs/advanced-usage.md#check-latest-version)
+ - [Using a node version file](docs/advanced-usage.md#node-version-file)
+ - [Using different architectures](docs/advanced-usage.md#architecture)
+ - [Using v8 canary versions](docs/advanced-usage.md#v8-canary-versions)
+ - [Using nigthly versions](docs/advanced-usage.md#nightly-versions)
+ - [Using rc versions](docs/advanced-usage.md#rc-versions)
+ - [Caching packages data](docs/advanced-usage.md#caching-packages-data)
+ - [Using multiple operating systems and architectures](docs/advanced-usage.md#multiple-operating-systems-and-architectures)
+ - [Publishing to npmjs and GPR with npm](docs/advanced-usage.md#publish-to-npmjs-and-gpr-with-npm)
+ - [Publishing to npmjs and GPR with yarn](docs/advanced-usage.md#publish-to-npmjs-and-gpr-with-yarn)
+ - [Using private packages](docs/advanced-usage.md#use-private-packages)
 
 ## License
 

__tests__/README.md

@@ -0,0 +1,10 @@
+Files located in data directory are used only for testing purposes. 
+
+
+## Here the list of files in the data directory
+ - `.nvmrc`, `.tools-versions` and `package.json` are used to test node-version-file logic
+ - `package-lock.json`, `pnpm-lock.yaml` and `yarn.lock` are used to test cache logic 
+ - `versions-manifest.json` is used for unit testing to check downloading Node.js versions from the node-versions repository.
+ - `node-dist-index.json` is used for unit testing to check downloading Node.js versions from the official site. The file was constructed from https://nodejs.org/dist/index.json
+ - `node-rc-index.json` is used for unit testing to check downloading Node.js rc versions from the official site. The file was constructed from https://nodejs.org/download/rc/index.json
+ - `node-nightly-index.json` is used for unit testing to check downloading Node.js nightly builds from the official site. The file was constructed from https://nodejs.org/download/nightly/index.json

__tests__/authutil.test.ts

@@ -1,4 +1,4 @@
-import os = require('os');
+import os from 'os';
 import * as fs from 'fs';
 import * as path from 'path';
 import * as core from '@actions/core';
@@ -123,6 +123,7 @@ describe('authutil tests', () => {
     expect(rc['registry']).toBe('https://registry.npmjs.org/');
     expect(rc['always-auth']).toBe('true');
   });
+
   it('It is already set the NODE_AUTH_TOKEN export it ', async () => {
     process.env.NODE_AUTH_TOKEN = 'foobar';
     await auth.configAuthentication('npm.pkg.github.com', 'false');
@@ -132,4 +133,84 @@ describe('authutil tests', () => {
     expect(rc['always-auth']).toBe('false');
     expect(process.env.NODE_AUTH_TOKEN).toEqual('foobar');
   });
+
+  it('configAuthentication should overwrite non-scoped with non-scoped', async () => {
+    fs.writeFileSync(rcFile, 'registry=NNN');
+    await auth.configAuthentication('https://registry.npmjs.org/', 'true');
+    let contents = fs.readFileSync(rcFile, {encoding: 'utf8'});
+    expect(contents).toBe(
+      `//registry.npmjs.org/:_authToken=\${NODE_AUTH_TOKEN}${os.EOL}registry=https://registry.npmjs.org/${os.EOL}always-auth=true`
+    );
+  });
+
+  it('configAuthentication should overwrite only non-scoped', async () => {
+    fs.writeFileSync(rcFile, `registry=NNN${os.EOL}@myscope:registry=MMM`);
+    await auth.configAuthentication('https://registry.npmjs.org/', 'true');
+    let contents = fs.readFileSync(rcFile, {encoding: 'utf8'});
+    expect(contents).toBe(
+      `@myscope:registry=MMM${os.EOL}//registry.npmjs.org/:_authToken=\${NODE_AUTH_TOKEN}${os.EOL}registry=https://registry.npmjs.org/${os.EOL}always-auth=true`
+    );
+  });
+
+  it('configAuthentication should add non-scoped to scoped', async () => {
+    fs.writeFileSync(rcFile, '@myscope:registry=NNN');
+    await auth.configAuthentication('https://registry.npmjs.org/', 'true');
+    let contents = fs.readFileSync(rcFile, {encoding: 'utf8'});
+    expect(contents).toBe(
+      `@myscope:registry=NNN${os.EOL}//registry.npmjs.org/:_authToken=\${NODE_AUTH_TOKEN}${os.EOL}registry=https://registry.npmjs.org/${os.EOL}always-auth=true`
+    );
+  });
+
+  it('configAuthentication should overwrite scoped with scoped', async () => {
+    process.env['INPUT_SCOPE'] = 'myscope';
+    fs.writeFileSync(rcFile, `@myscope:registry=NNN`);
+    await auth.configAuthentication('https://registry.npmjs.org/', 'true');
+    let contents = fs.readFileSync(rcFile, {encoding: 'utf8'});
+    expect(contents).toBe(
+      `//registry.npmjs.org/:_authToken=\${NODE_AUTH_TOKEN}${os.EOL}@myscope:registry=https://registry.npmjs.org/${os.EOL}always-auth=true`
+    );
+  });
+
+  it('configAuthentication should overwrite only scoped', async () => {
+    process.env['INPUT_SCOPE'] = 'myscope';
+    fs.writeFileSync(rcFile, `registry=NNN${os.EOL}@myscope:registry=MMM`);
+    await auth.configAuthentication('https://registry.npmjs.org/', 'true');
+    let contents = fs.readFileSync(rcFile, {encoding: 'utf8'});
+    expect(contents).toBe(
+      `registry=NNN${os.EOL}//registry.npmjs.org/:_authToken=\${NODE_AUTH_TOKEN}${os.EOL}@myscope:registry=https://registry.npmjs.org/${os.EOL}always-auth=true`
+    );
+  });
+
+  it('configAuthentication should add scoped to non-scoped', async () => {
+    process.env['INPUT_SCOPE'] = 'myscope';
+    fs.writeFileSync(rcFile, `registry=MMM`);
+    await auth.configAuthentication('https://registry.npmjs.org/', 'true');
+    let contents = fs.readFileSync(rcFile, {encoding: 'utf8'});
+    expect(contents).toBe(
+      `registry=MMM${os.EOL}//registry.npmjs.org/:_authToken=\${NODE_AUTH_TOKEN}${os.EOL}@myscope:registry=https://registry.npmjs.org/${os.EOL}always-auth=true`
+    );
+  });
+
+  it('configAuthentication should overwrite only one scoped', async () => {
+    process.env['INPUT_SCOPE'] = 'myscope';
+    fs.writeFileSync(
+      rcFile,
+      `@otherscope:registry=NNN${os.EOL}@myscope:registry=MMM`
+    );
+    await auth.configAuthentication('https://registry.npmjs.org/', 'true');
+    let contents = fs.readFileSync(rcFile, {encoding: 'utf8'});
+    expect(contents).toBe(
+      `@otherscope:registry=NNN${os.EOL}//registry.npmjs.org/:_authToken=\${NODE_AUTH_TOKEN}${os.EOL}@myscope:registry=https://registry.npmjs.org/${os.EOL}always-auth=true`
+    );
+  });
+
+  it('configAuthentication should add scoped to another scoped', async () => {
+    process.env['INPUT_SCOPE'] = 'myscope';
+    fs.writeFileSync(rcFile, `@otherscope:registry=MMM`);
+    await auth.configAuthentication('https://registry.npmjs.org/', 'true');
+    let contents = fs.readFileSync(rcFile, {encoding: 'utf8'});
+    expect(contents).toBe(
+      `@otherscope:registry=MMM${os.EOL}//registry.npmjs.org/:_authToken=\${NODE_AUTH_TOKEN}${os.EOL}@myscope:registry=https://registry.npmjs.org/${os.EOL}always-auth=true`
+    );
+  });
 });

__tests__/cache-utils.test.ts

@@ -46,7 +46,8 @@ describe('cache-utils', () => {
     isFeatureAvailable.mockImplementation(() => false);
     process.env['GITHUB_SERVER_URL'] = 'https://www.test.com';
 
-    expect(() => isCacheFeatureAvailable()).toThrowError(
+    expect(isCacheFeatureAvailable()).toBeFalsy();
+    expect(warningSpy).toHaveBeenCalledWith(
       'Cache action is only supported on GHES version >= 3.5. If you are on version >=3.5 Please check with GHES admin if Actions cache service is enabled or not.'
     );
   });

__tests__/canary-installer.test.ts

@@ -0,0 +1,531 @@
+import * as core from '@actions/core';
+import * as io from '@actions/io';
+import * as tc from '@actions/tool-cache';
+import * as httpm from '@actions/http-client';
+import * as exec from '@actions/exec';
+import * as cache from '@actions/cache';
+import fs from 'fs';
+import cp from 'child_process';
+import osm from 'os';
+import path from 'path';
+import * as main from '../src/main';
+import * as auth from '../src/authutil';
+import {INodeVersion} from '../src/distributions/base-models';
+
+const nodeTestManifest = require('./data/versions-manifest.json');
+const nodeTestDist = require('./data/node-dist-index.json');
+const nodeTestDistNightly = require('./data/node-nightly-index.json');
+const nodeTestDistRc = require('./data/node-rc-index.json');
+const nodeV8CanaryTestDist = require('./data/v8-canary-dist-index.json');
+
+describe('setup-node', () => {
+  let inputs = {} as any;
+  let os = {} as any;
+
+  let inSpy: jest.SpyInstance;
+  let findSpy: jest.SpyInstance;
+  let findAllVersionsSpy: jest.SpyInstance;
+  let cnSpy: jest.SpyInstance;
+  let logSpy: jest.SpyInstance;
+  let warningSpy: jest.SpyInstance;
+  let getManifestSpy: jest.SpyInstance;
+  let getDistSpy: jest.SpyInstance;
+  let platSpy: jest.SpyInstance;
+  let archSpy: jest.SpyInstance;
+  let dlSpy: jest.SpyInstance;
+  let exSpy: jest.SpyInstance;
+  let cacheSpy: jest.SpyInstance;
+  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;
+  let isCacheActionAvailable: jest.SpyInstance;
+  let getExecOutputSpy: jest.SpyInstance;
+  let getJsonSpy: jest.SpyInstance;
+
+  beforeEach(() => {
+    // @actions/core
+    console.log('::stop-commands::stoptoken'); // Disable executing of runner commands when running tests in actions
+    process.env['GITHUB_PATH'] = ''; // Stub out ENV file functionality so we can verify it writes to standard out
+    process.env['GITHUB_OUTPUT'] = ''; // Stub out ENV file functionality so we can verify it writes to standard out
+    inputs = {};
+    inSpy = jest.spyOn(core, 'getInput');
+    inSpy.mockImplementation(name => inputs[name]);
+
+    // node
+    os = {};
+    platSpy = jest.spyOn(osm, 'platform');
+    platSpy.mockImplementation(() => os['platform']);
+    archSpy = jest.spyOn(osm, 'arch');
+    archSpy.mockImplementation(() => os['arch']);
+    execSpy = jest.spyOn(cp, 'execSync');
+
+    // @actions/tool-cache
+    findSpy = jest.spyOn(tc, 'find');
+    findAllVersionsSpy = jest.spyOn(tc, 'findAllVersions');
+    dlSpy = jest.spyOn(tc, 'downloadTool');
+    exSpy = jest.spyOn(tc, 'extractTar');
+    cacheSpy = jest.spyOn(tc, 'cacheDir');
+    getManifestSpy = jest.spyOn(tc, 'getManifestFromRepo');
+
+    // http-client
+    getJsonSpy = jest.spyOn(httpm.HttpClient.prototype, 'getJson');
+
+    // io
+    whichSpy = jest.spyOn(io, 'which');
+    existsSpy = jest.spyOn(fs, 'existsSync');
+    mkdirpSpy = jest.spyOn(io, 'mkdirP');
+
+    // @actions/tool-cache
+    isCacheActionAvailable = jest.spyOn(cache, 'isFeatureAvailable');
+
+    // disable authentication portion for installer tests
+    authSpy = jest.spyOn(auth, 'configAuthentication');
+    authSpy.mockImplementation(() => {});
+
+    // gets
+    getManifestSpy.mockImplementation(
+      () => <tc.IToolRelease[]>nodeTestManifest
+    );
+
+    getJsonSpy.mockImplementation(url => {
+      let res: any;
+      if (url.includes('/rc')) {
+        res = <INodeVersion>nodeTestDistRc;
+      } else if (url.includes('/nightly')) {
+        res = <INodeVersion>nodeTestDistNightly;
+      } else if (url.includes('/v8-canary')) {
+        res = <INodeVersion>nodeV8CanaryTestDist;
+      } else {
+        res = <INodeVersion>nodeTestDist;
+      }
+
+      return {result: res};
+    });
+
+    // writes
+    cnSpy = jest.spyOn(process.stdout, 'write');
+    logSpy = jest.spyOn(core, 'info');
+    dbgSpy = jest.spyOn(core, 'debug');
+    warningSpy = jest.spyOn(core, 'warning');
+    cnSpy.mockImplementation(line => {
+      // uncomment to debug
+      // process.stderr.write('write:' + line + '\n');
+    });
+    logSpy.mockImplementation(line => {
+      // uncomment to debug
+      // process.stderr.write('log:' + line + '\n');
+    });
+    dbgSpy.mockImplementation(msg => {
+      // uncomment to see debug output
+      // process.stderr.write(msg + '\n');
+    });
+    warningSpy.mockImplementation(msg => {
+      // uncomment to debug
+      // process.stderr.write('log:' + msg + '\n');
+    });
+
+    // @actions/exec
+    getExecOutputSpy = jest.spyOn(exec, 'getExecOutput');
+    getExecOutputSpy.mockImplementation(() => 'v16.15.0');
+  });
+
+  afterEach(() => {
+    jest.resetAllMocks();
+    jest.clearAllMocks();
+    //jest.restoreAllMocks();
+  });
+
+  afterAll(async () => {
+    console.log('::stoptoken::'); // Re-enable executing of runner commands when running tests in actions
+    jest.restoreAllMocks();
+  }, 100000);
+
+  //--------------------------------------------------
+  // Found in cache tests
+  //--------------------------------------------------
+
+  it('finds version in cache with stable true', async () => {
+    inputs['node-version'] = '20-v8-canary';
+    os['arch'] = 'x64';
+    inputs.stable = 'true';
+
+    let toolPath = path.normalize(
+      '/cache/node/20.0.0-v8-canary20221103f7e2421e91/x64'
+    );
+    findSpy.mockImplementation(() => toolPath);
+    findAllVersionsSpy.mockImplementation(() => [
+      '20.0.0-v8-canary20221103f7e2421e91',
+      '20.0.0-v8-canary20221030fefe1c0879',
+      '19.0.0-v8-canary202210172ec229fc56',
+      '20.0.0-v8-canary2022102310ff1e5a8d'
+    ]);
+    await main.run();
+
+    expect(findSpy).toHaveBeenCalledWith(
+      'node',
+      '20.0.0-v8-canary20221103f7e2421e91',
+      'x64'
+    );
+    expect(logSpy).toHaveBeenCalledWith(`Found in cache @ ${toolPath}`);
+  });
+
+  it('finds version in cache and adds it to the path', async () => {
+    inputs['node-version'] = '20-v8-canary';
+    os['arch'] = 'x64';
+
+    inSpy.mockImplementation(name => inputs[name]);
+
+    let toolPath = path.normalize(
+      '/cache/node/20.0.0-v8-canary20221103f7e2421e91/x64'
+    );
+    findSpy.mockImplementation(() => toolPath);
+    findAllVersionsSpy.mockImplementation(() => [
+      '20.0.0-v8-canary20221103f7e2421e91',
+      '20.0.0-v8-canary20221030fefe1c0879',
+      '19.0.0-v8-canary202210172ec229fc56',
+      '20.0.0-v8-canary2022102310ff1e5a8d'
+    ]);
+    await main.run();
+
+    let expPath = path.join(toolPath, 'bin');
+    expect(cnSpy).toHaveBeenCalledWith(`::add-path::${expPath}${osm.EOL}`);
+  });
+
+  it('handles unhandled find error and reports error', async () => {
+    os.platform = 'linux';
+    let errMsg = 'unhandled error message';
+    inputs['node-version'] = '20.0.0-v8-canary20221103f7e2421e91';
+
+    findSpy.mockImplementation(() => {
+      throw new Error(errMsg);
+    });
+    findAllVersionsSpy.mockImplementation(() => [
+      '20.0.0-v8-canary20221103f7e2421e91',
+      '20.0.0-v8-canary20221030fefe1c0879',
+      '19.0.0-v8-canary202210172ec229fc56',
+      '20.0.0-v8-canary2022102310ff1e5a8d'
+    ]);
+
+    await main.run();
+
+    expect(cnSpy).toHaveBeenCalledWith('::error::' + errMsg + osm.EOL);
+  });
+
+  //--------------------------------------------------
+  // Manifest tests
+  //--------------------------------------------------
+  it('falls back to a version from node dist', async () => {
+    os.platform = 'linux';
+    os.arch = 'x64';
+
+    // a version which is not in the manifest but is in node dist
+    let versionSpec = '11.15.0';
+
+    inputs['node-version'] = versionSpec;
+    inputs['always-auth'] = false;
+    inputs['token'] = 'faketoken';
+
+    // ... but not in the local cache
+    findSpy.mockImplementation(() => '');
+
+    dlSpy.mockImplementation(async () => '/some/temp/path');
+    let toolPath = path.normalize('/cache/node/11.11.0/x64');
+    exSpy.mockImplementation(async () => '/some/other/temp/path');
+    cacheSpy.mockImplementation(async () => toolPath);
+
+    await main.run();
+
+    let expPath = path.join(toolPath, 'bin');
+
+    expect(dlSpy).toHaveBeenCalled();
+    expect(exSpy).toHaveBeenCalled();
+    expect(logSpy).toHaveBeenCalledWith(
+      'Not found in manifest. Falling back to download directly from Node'
+    );
+    expect(logSpy).toHaveBeenCalledWith(
+      `Attempting to download ${versionSpec}...`
+    );
+    expect(cnSpy).toHaveBeenCalledWith(`::add-path::${expPath}${osm.EOL}`);
+  });
+
+  it('does not find a version that does not exist', async () => {
+    os.platform = 'linux';
+    os.arch = 'x64';
+
+    let versionSpec = '23.0.0-v8-canary20221103f7e2421e91';
+    inputs['node-version'] = versionSpec;
+
+    findSpy.mockImplementation(() => '');
+    findAllVersionsSpy.mockImplementation(() => [
+      '20.0.0-v8-canary20221103f7e2421e91',
+      '20.0.0-v8-canary20221030fefe1c0879',
+      '19.0.0-v8-canary202210172ec229fc56',
+      '20.0.0-v8-canary2022102310ff1e5a8d'
+    ]);
+    await main.run();
+
+    expect(cnSpy).toHaveBeenCalledWith(
+      `::error::Unable to find Node version '${versionSpec}' for platform ${os.platform} and architecture ${os.arch}.${osm.EOL}`
+    );
+  });
+
+  it('reports a failed download', async () => {
+    let errMsg = 'unhandled download message';
+    os.platform = 'linux';
+    os.arch = 'x64';
+
+    // a version which is in the manifest
+    let versionSpec = '19.0.0-v8-canary';
+
+    inputs['node-version'] = versionSpec;
+    inputs['always-auth'] = false;
+    inputs['token'] = 'faketoken';
+
+    findSpy.mockImplementation(() => '');
+    findAllVersionsSpy.mockImplementation(() => [
+      '20.0.0-v8-canary20221103f7e2421e91',
+      '20.0.0-v8-canary20221030fefe1c0879',
+      '20.0.0-v8-canary2022102310ff1e5a8d'
+    ]);
+    dlSpy.mockImplementation(() => {
+      throw new Error(errMsg);
+    });
+    await main.run();
+
+    expect(cnSpy).toHaveBeenCalledWith(`::error::${errMsg}${osm.EOL}`);
+  });
+
+  it('acquires specified architecture of node', async () => {
+    for (const {arch, version, osSpec} of [
+      {
+        arch: 'x86',
+        version: '20.0.0-v8-canary20221022e83bcb6c41',
+        osSpec: 'win32'
+      },
+      {
+        arch: 'x86',
+        version: '20.0.0-v8-canary20221103f7e2421e91',
+        osSpec: 'win32'
+      }
+    ]) {
+      os.platform = osSpec;
+      os.arch = arch;
+      const fileExtension = os.platform === 'win32' ? '7z' : 'tar.gz';
+      const platform = {
+        linux: 'linux',
+        darwin: 'darwin',
+        win32: 'win'
+      }[os.platform];
+
+      inputs['node-version'] = version;
+      inputs['architecture'] = arch;
+      inputs['always-auth'] = false;
+      inputs['token'] = 'faketoken';
+
+      let expectedUrl = `https://nodejs.org/download/v8-canary/v${version}/node-v${version}-${platform}-${arch}.${fileExtension}`;
+
+      // ... but not in the local cache
+      findSpy.mockImplementation(() => '');
+      findAllVersionsSpy.mockImplementation(() => []);
+
+      dlSpy.mockImplementation(async () => '/some/temp/path');
+      let toolPath = path.normalize(`/cache/node/${version}/${arch}`);
+      exSpy.mockImplementation(async () => '/some/other/temp/path');
+      cacheSpy.mockImplementation(async () => toolPath);
+
+      await main.run();
+      expect(dlSpy).toHaveBeenCalled();
+      expect(logSpy).toHaveBeenCalledWith(
+        `Acquiring ${version} - ${arch} from ${expectedUrl}`
+      );
+    }
+  }, 100000);
+
+  describe('nightly versions', () => {
+    it.each([
+      [
+        '20.0.0-v8-canary',
+        '20.0.0-v8-canary20221103f7e2421e91',
+        'https://nodejs.org/download/v8-canary/v20.0.0-v8-canary20221103f7e2421e91/node-v20.0.0-v8-canary20221103f7e2421e91-linux-x64.tar.gz'
+      ],
+      [
+        '20-v8-canary',
+        '20.0.0-v8-canary20221103f7e2421e91',
+        'https://nodejs.org/download/v8-canary/v20.0.0-v8-canary20221103f7e2421e91/node-v20.0.0-v8-canary20221103f7e2421e91-linux-x64.tar.gz'
+      ],
+      [
+        '19.0.0-v8-canary',
+        '19.0.0-v8-canary202210187d6960f23f',
+        'https://nodejs.org/download/v8-canary/v19.0.0-v8-canary202210187d6960f23f/node-v19.0.0-v8-canary202210187d6960f23f-linux-x64.tar.gz'
+      ],
+      [
+        '19-v8-canary',
+        '19.0.0-v8-canary202210187d6960f23f',
+        'https://nodejs.org/download/v8-canary/v19.0.0-v8-canary202210187d6960f23f/node-v19.0.0-v8-canary202210187d6960f23f-linux-x64.tar.gz'
+      ],
+      [
+        '19.0.0-v8-canary202210187d6960f23f',
+        '19.0.0-v8-canary202210187d6960f23f',
+        'https://nodejs.org/download/v8-canary/v19.0.0-v8-canary202210187d6960f23f/node-v19.0.0-v8-canary202210187d6960f23f-linux-x64.tar.gz'
+      ]
+    ])(
+      'finds the versions in the index.json and installs it',
+      async (input, expectedVersion, expectedUrl) => {
+        const toolPath = path.normalize(`/cache/node/${expectedVersion}/x64`);
+
+        findSpy.mockImplementation(() => '');
+        findAllVersionsSpy.mockImplementation(() => []);
+        dlSpy.mockImplementation(async () => '/some/temp/path');
+        exSpy.mockImplementation(async () => '/some/other/temp/path');
+        cacheSpy.mockImplementation(async () => toolPath);
+
+        inputs['node-version'] = input;
+        os['arch'] = 'x64';
+        os['platform'] = 'linux';
+        // act
+        await main.run();
+
+        // assert
+        expect(logSpy).toHaveBeenCalledWith(
+          `Acquiring ${expectedVersion} - ${os.arch} from ${expectedUrl}`
+        );
+        expect(logSpy).toHaveBeenCalledWith('Extracting ...');
+        expect(logSpy).toHaveBeenCalledWith('Adding to the cache ...');
+        expect(cnSpy).toHaveBeenCalledWith(
+          `::add-path::${path.join(toolPath, 'bin')}${osm.EOL}`
+        );
+      }
+    );
+
+    it.each([
+      [
+        '20.0.0-v8-canary20221103f7e2421e91',
+        '20.0.0-v8-canary20221103f7e2421e91'
+      ],
+      ['20.0.0-v8-canary', '20.0.0-v8-canary20221103f7e2421e91'],
+      ['20-v8-canary', '20.0.0-v8-canary20221103f7e2421e91']
+    ])(
+      'finds the %s version in the hostedToolcache',
+      async (input, expectedVersion) => {
+        const toolPath = path.normalize(`/cache/node/${expectedVersion}/x64`);
+        findSpy.mockReturnValue(toolPath);
+        findAllVersionsSpy.mockReturnValue([
+          '20.0.0-v8-canary20221103f7e2421e91',
+          '20.0.0-v8-canary20221030fefe1c0879',
+          '19.0.0-v8-canary202210172ec229fc56',
+          '20.0.0-v8-canary2022102310ff1e5a8d'
+        ]);
+
+        inputs['node-version'] = input;
+        os['arch'] = 'x64';
+        os['platform'] = 'linux';
+
+        // act
+        await main.run();
+
+        // assert
+        expect(findAllVersionsSpy).toHaveBeenCalled();
+        expect(logSpy).toHaveBeenCalledWith(`Found in cache @ ${toolPath}`);
+        expect(cnSpy).toHaveBeenCalledWith(
+          `::add-path::${path.join(toolPath, 'bin')}${osm.EOL}`
+        );
+      }
+    );
+
+    it.each([
+      [
+        '20.0.0-v8-canary',
+        '20.0.0-v8-canary20221103f7e2421e91',
+        '20.0.0-v8-canary20221030fefe1c0879',
+        'https://nodejs.org/download/v8-canary/v20.0.0-v8-canary20221103f7e2421e91/node-v20.0.0-v8-canary20221103f7e2421e91-linux-x64.tar.gz'
+      ],
+      [
+        '20-v8-canary',
+        '20.0.0-v8-canary20221103f7e2421e91',
+        '20.0.0-v8-canary20221030fefe1c0879',
+        'https://nodejs.org/download/v8-canary/v20.0.0-v8-canary20221103f7e2421e91/node-v20.0.0-v8-canary20221103f7e2421e91-linux-x64.tar.gz'
+      ],
+      [
+        '19.0.0-v8-canary',
+        '19.0.0-v8-canary202210187d6960f23f',
+        '19.0.0-v8-canary202210172ec229fc56',
+        'https://nodejs.org/download/v8-canary/v19.0.0-v8-canary202210187d6960f23f/node-v19.0.0-v8-canary202210187d6960f23f-linux-x64.tar.gz'
+      ],
+      [
+        '19-v8-canary',
+        '19.0.0-v8-canary202210187d6960f23f',
+        '19.0.0-v8-canary202210172ec229fc56',
+        'https://nodejs.org/download/v8-canary/v19.0.0-v8-canary202210187d6960f23f/node-v19.0.0-v8-canary202210187d6960f23f-linux-x64.tar.gz'
+      ]
+    ])(
+      'get %s version from dist if check-latest is true',
+      async (input, expectedVersion, foundVersion, expectedUrl) => {
+        const foundToolPath = path.normalize(`/cache/node/${foundVersion}/x64`);
+        const toolPath = path.normalize(`/cache/node/${expectedVersion}/x64`);
+
+        inputs['node-version'] = input;
+        inputs['check-latest'] = 'true';
+        os['arch'] = 'x64';
+        os['platform'] = 'linux';
+
+        findSpy.mockReturnValue(foundToolPath);
+        findAllVersionsSpy.mockReturnValue([
+          '20.0.0-v8-canary20221030fefe1c0879',
+          '19.0.0-v8-canary202210172ec229fc56',
+          '20.0.0-v8-canary2022102310ff1e5a8d'
+        ]);
+        dlSpy.mockImplementation(async () => '/some/temp/path');
+        exSpy.mockImplementation(async () => '/some/other/temp/path');
+        cacheSpy.mockImplementation(async () => toolPath);
+
+        // act
+        await main.run();
+
+        // assert
+        expect(findAllVersionsSpy).toHaveBeenCalled();
+        expect(logSpy).toHaveBeenCalledWith(
+          `Acquiring ${expectedVersion} - ${os.arch} from ${expectedUrl}`
+        );
+        expect(logSpy).toHaveBeenCalledWith('Extracting ...');
+        expect(logSpy).toHaveBeenCalledWith('Adding to the cache ...');
+        expect(cnSpy).toHaveBeenCalledWith(
+          `::add-path::${path.join(toolPath, 'bin')}${osm.EOL}`
+        );
+      }
+    );
+  });
+
+  describe('setup-node v8 canary tests', () => {
+    it('v8 canary setup node flow with cached', async () => {
+      let versionSpec = 'v20-v8-canary';
+
+      inputs['node-version'] = versionSpec;
+      inputs['always-auth'] = false;
+      inputs['token'] = 'faketoken';
+
+      os.platform = 'linux';
+      os.arch = 'x64';
+
+      const versionExpected = 'v20.0.0-v8-canary20221103f7e2421e91';
+      findAllVersionsSpy.mockImplementation(() => [versionExpected]);
+
+      const toolPath = path.normalize(`/cache/node/${versionExpected}/x64`);
+      findSpy.mockImplementation(version => toolPath);
+
+      await main.run();
+
+      expect(cnSpy).toHaveBeenCalledWith(
+        `::add-path::${toolPath}${path.sep}bin${osm.EOL}`
+      );
+
+      expect(dlSpy).not.toHaveBeenCalled();
+      expect(exSpy).not.toHaveBeenCalled();
+      expect(cacheSpy).not.toHaveBeenCalled();
+    });
+  });
+});

__tests__/data/node-nightly-index.json

@@ -0,0 +1,35 @@
+[
+    {"version":"v20.0.0-nightly2022101987cdf7d412","date":"2022-10-19","files":["aix-ppc64","headers","linux-arm64","linux-armv7l","linux-ppc64le","linux-s390x","linux-x64","osx-arm64-tar","osx-x64-pkg","osx-x64-tar","src","win-x64-7z","win-x64-exe","win-x64-msi","win-x64-zip","win-x86-7z","win-x86-exe","win-x86-msi","win-x86-zip"],"npm":"8.19.2","v8":"10.7.193.16","uv":"1.43.0","zlib":"1.2.11","openssl":"3.0.5+quic","modules":"111","lts":false,"security":false},
+    {"version":"v19.0.0-nightly202210182672219b78","date":"2022-10-18","files":["aix-ppc64","headers","linux-arm64","linux-armv7l","linux-ppc64le","linux-s390x","linux-x64","osx-arm64-tar","osx-x64-pkg","osx-x64-tar","src","win-x64-7z","win-x64-exe","win-x64-msi","win-x64-zip","win-x86-7z","win-x86-exe","win-x86-msi","win-x86-zip"],"npm":"8.19.2","v8":"10.7.193.13","uv":"1.43.0","zlib":"1.2.11","openssl":"3.0.5+quic","modules":"111","lts":false,"security":false},
+
+
+    {"version":"v19.0.0-nightly202204201fe5d56403","date":"2022-04-20","files":["aix-ppc64","headers","linux-arm64","linux-armv7l","linux-ppc64le","linux-s390x","linux-x64","osx-arm64-tar","osx-x64-tar","src","win-x64-7z","win-x64-exe","win-x64-msi","win-x64-zip"],"npm":"8.7.0","v8":"10.1.124.8","uv":"1.43.0","zlib":"1.2.11","openssl":"3.0.2+quic","modules":"108","lts":false,"security":false},
+    {"version":"v18.0.0-nightly20220419bde889bd4e","date":"2022-04-19","files":["aix-ppc64","headers","linux-arm64","linux-armv7l","linux-ppc64le","linux-s390x","linux-x64","osx-arm64-tar","osx-x64-pkg","osx-x64-tar","src","win-x64-7z","win-x64-exe","win-x64-msi","win-x64-zip"],"npm":"8.7.0","v8":"10.1.124.8","uv":"1.43.0","zlib":"1.2.11","openssl":"3.0.2+quic","modules":"108","lts":false,"security":false},
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+    {"version":"v13.4.0-rc.0","date":"2019-12-13","files":["aix-ppc64","headers","linux-arm64","linux-armv7l","linux-ppc64le","linux-s390x","linux-x64","osx-x64-pkg","osx-x64-tar","src","sunos-x64","win-x64-7z","win-x64-exe","win-x64-msi","win-x64-zip","win-x86-7z","win-x86-exe","win-x86-msi","win-x86-zip"],"v8":"","uv":"","zlib":null,"openssl":null,"modules":null,"lts":false,"security":false},
+    {"version":"v13.0.1-rc.0","date":"2019-10-23","files":["aix-ppc64","headers","linux-arm64","linux-armv7l","linux-ppc64le","linux-s390x","linux-x64","osx-x64-pkg","osx-x64-tar","src","sunos-x64","win-x64-7z","win-x64-exe","win-x64-msi","win-x64-zip","win-x86-7z","win-x86-exe","win-x86-msi","win-x86-zip"],"v8":"","uv":"","zlib":null,"openssl":null,"modules":null,"lts":false,"security":false},
+    {"version":"v13.0.0-rc.3","date":"2019-10-21","files":["aix-ppc64","headers","linux-arm64","linux-armv7l","linux-ppc64le","linux-s390x","linux-x64","osx-x64-pkg","osx-x64-tar","src","sunos-x64","win-x64-7z","win-x64-exe","win-x64-msi","win-x64-zip","win-x86-7z","win-x86-exe","win-x86-msi","win-x86-zip"],"v8":"","uv":"","zlib":null,"openssl":null,"modules":null,"lts":false,"security":false},
+    {"version":"v13.0.0-rc.2","date":"2019-10-15","files":["headers","linux-arm64","linux-armv7l","linux-ppc64le","linux-s390x","linux-x64","osx-x64-pkg","osx-x64-tar","src","sunos-x64","win-x64-7z","win-x64-exe","win-x64-msi","win-x64-zip","win-x86-7z","win-x86-exe","win-x86-msi","win-x86-zip"],"v8":"","uv":"","zlib":null,"openssl":null,"modules":null,"lts":false,"security":false},
+    {"version":"v13.0.0-rc.1","date":"2019-10-01","files":["aix-ppc64","headers","linux-arm64","linux-armv7l","linux-ppc64le","linux-s390x","linux-x64","osx-x64-pkg","osx-x64-tar","src","sunos-x64","win-x64-7z","win-x64-exe","win-x64-msi","win-x64-zip","win-x86-7z","win-x86-exe","win-x86-msi","win-x86-zip"],"v8":"","uv":"","zlib":null,"openssl":null,"modules":null,"lts":false,"security":false},
+    {"version":"v13.0.0-rc.0","date":"2019-09-25","files":["aix-ppc64","headers","linux-arm64","linux-armv7l","linux-ppc64le","linux-s390x","linux-x64","osx-x64-pkg","osx-x64-tar","src","sunos-x64","win-x64-7z","win-x64-exe","win-x64-msi","win-x64-zip","win-x86-7z","win-x86-exe","win-x86-msi","win-x86-zip"],"v8":"","uv":"","zlib":null,"openssl":null,"modules":null,"lts":false,"security":false}
+    ]

__tests__/data/package.json

@@ -0,0 +1,8 @@
+{
+  "engines": {
+    "node": "^14.0.0"
+  },
+  "volta": {
+    "node": "16.0.0"
+  }
+}

__tests__/data/v8-canary-dist-index.json

@@ -0,0 +1,537 @@
+[
+  {
+    "version": "v20.0.0-v8-canary20221103f7e2421e91",
+    "date": "2022-11-03",
+    "files": [
+      "headers",
+      "linux-arm64",
+      "linux-armv7l",
+      "linux-ppc64le",
+      "linux-s390x",
+      "linux-x64",
+      "osx-arm64-tar",
+      "osx-x64-pkg",
+      "osx-x64-tar",
+      "src",
+      "win-x64-7z",
+      "win-x64-exe",
+      "win-x64-msi",
+      "win-x64-zip",
+      "win-x86-7z",
+      "win-x86-exe",
+      "win-x86-msi",
+      "win-x86-zip"
+    ],
+    "npm": "8.19.2",
+    "v8": "10.9.138.0",
+    "uv": "1.43.0",
+    "zlib": "1.2.11",
+    "openssl": "3.0.5+quic",
+    "modules": "112",
+    "lts": false,
+    "security": false
+  },
+  {
+    "version": "v20.0.0-v8-canary202211026bf85d0fb4",
+    "date": "2022-11-02",
+    "files": [
+      "headers",
+      "linux-arm64",
+      "linux-armv7l",
+      "linux-ppc64le",
+      "linux-s390x",
+      "linux-x64",
+      "osx-arm64-tar",
+      "osx-x64-pkg",
+      "osx-x64-tar",
+      "src",
+      "win-x64-7z",
+      "win-x64-exe",
+      "win-x64-msi",
+      "win-x64-zip",
+      "win-x86-7z",
+      "win-x86-exe",
+      "win-x86-msi",
+      "win-x86-zip"
+    ],
+    "npm": "8.19.2",
+    "v8": "10.9.130.0",
+    "uv": "1.43.0",
+    "zlib": "1.2.11",
+    "openssl": "3.0.5+quic",
+    "modules": "112",
+    "lts": false,
+    "security": false
+  },
+  {
+    "version": "v20.0.0-v8-canary20221101e50e45c9f8",
+    "date": "2022-11-01",
+    "files": [
+      "headers",
+      "linux-arm64",
+      "linux-armv7l",
+      "linux-ppc64le",
+      "linux-s390x",
+      "linux-x64",
+      "osx-arm64-tar",
+      "osx-x64-tar",
+      "src",
+      "win-x64-7z",
+      "win-x64-exe",
+      "win-x64-msi",
+      "win-x64-zip",
+      "win-x86-7z",
+      "win-x86-exe",
+      "win-x86-msi",
+      "win-x86-zip"
+    ],
+    "npm": "8.19.2",
+    "v8": "10.9.129.0",
+    "uv": "1.43.0",
+    "zlib": "1.2.11",
+    "openssl": "3.0.5+quic",
+    "modules": "112",
+    "lts": false,
+    "security": false
+  },
+  {
+    "version": "v20.0.0-v8-canary202210311b1e675ad0",
+    "date": "2022-10-31",
+    "files": [
+      "headers",
+      "linux-arm64",
+      "linux-armv7l",
+      "linux-ppc64le",
+      "linux-s390x",
+      "linux-x64",
+      "osx-arm64-tar",
+      "osx-x64-tar",
+      "src",
+      "win-x64-7z",
+      "win-x64-exe",
+      "win-x64-msi",
+      "win-x64-zip",
+      "win-x86-7z",
+      "win-x86-exe",
+      "win-x86-msi",
+      "win-x86-zip"
+    ],
+    "npm": "8.19.2",
+    "v8": "10.9.125.0",
+    "uv": "1.43.0",
+    "zlib": "1.2.11",
+    "openssl": "3.0.5+quic",
+    "modules": "112",
+    "lts": false,
+    "security": false
+  },
+  {
+    "version": "v20.0.0-v8-canary20221030fefe1c0879",
+    "date": "2022-10-30",
+    "files": [
+      "headers",
+      "linux-arm64",
+      "linux-armv7l",
+      "linux-ppc64le",
+      "linux-s390x",
+      "linux-x64",
+      "osx-arm64-tar",
+      "osx-x64-pkg",
+      "osx-x64-tar",
+      "src",
+      "win-x64-7z",
+      "win-x64-exe",
+      "win-x64-msi",
+      "win-x64-zip",
+      "win-x86-7z",
+      "win-x86-exe",
+      "win-x86-msi",
+      "win-x86-zip"
+    ],
+    "npm": "8.19.2",
+    "v8": "10.9.125.0",
+    "uv": "1.43.0",
+    "zlib": "1.2.11",
+    "openssl": "3.0.5+quic",
+    "modules": "112",
+    "lts": false,
+    "security": false
+  },
+  {
+    "version": "v20.0.0-v8-canary202210293881e51ba2",
+    "date": "2022-10-29",
+    "files": [
+      "headers",
+      "linux-arm64",
+      "linux-armv7l",
+      "linux-ppc64le",
+      "linux-s390x",
+      "linux-x64",
+      "osx-arm64-tar",
+      "osx-x64-pkg",
+      "osx-x64-tar",
+      "src",
+      "win-x64-7z",
+      "win-x64-exe",
+      "win-x64-msi",
+      "win-x64-zip",
+      "win-x86-7z",
+      "win-x86-exe",
+      "win-x86-msi",
+      "win-x86-zip"
+    ],
+    "npm": "8.19.2",
+    "v8": "10.9.122.0",
+    "uv": "1.43.0",
+    "zlib": "1.2.11",
+    "openssl": "3.0.5+quic",
+    "modules": "112",
+    "lts": false,
+    "security": false
+  },
+  {
+    "version": "v20.0.0-v8-canary202210286fe49d2a49",
+    "date": "2022-10-28",
+    "files": [
+      "osx-arm64-tar",
+      "osx-x64-pkg",
+      "osx-x64-tar",
+      "win-x64-7z",
+      "win-x64-exe",
+      "win-x64-msi",
+      "win-x64-zip",
+      "win-x86-7z",
+      "win-x86-exe",
+      "win-x86-msi",
+      "win-x86-zip"
+    ],
+    "npm": "8.19.2",
+    "v8": "10.9.112.0",
+    "uv": "1.43.0",
+    "zlib": "1.2.11",
+    "openssl": "3.0.5+quic",
+    "modules": "112",
+    "lts": false,
+    "security": false
+  },
+  {
+    "version": "v20.0.0-v8-canary20221027c470b3108c",
+    "date": "2022-10-27",
+    "files": [
+      "headers",
+      "linux-arm64",
+      "linux-armv7l",
+      "linux-ppc64le",
+      "linux-s390x",
+      "linux-x64",
+      "osx-arm64-tar",
+      "osx-x64-pkg",
+      "osx-x64-tar",
+      "src",
+      "win-x64-7z",
+      "win-x64-exe",
+      "win-x64-msi",
+      "win-x64-zip",
+      "win-x86-7z",
+      "win-x86-exe",
+      "win-x86-msi",
+      "win-x86-zip"
+    ],
+    "npm": "8.19.2",
+    "v8": "10.9.101.0",
+    "uv": "1.43.0",
+    "zlib": "1.2.11",
+    "openssl": "3.0.5+quic",
+    "modules": "112",
+    "lts": false,
+    "security": false
+  },
+  {
+    "version": "v20.0.0-v8-canary20221026c24f7d1e4a",
+    "date": "2022-10-26",
+    "files": [
+      "headers",
+      "linux-arm64",
+      "linux-armv7l",
+      "linux-ppc64le",
+      "linux-s390x",
+      "linux-x64",
+      "osx-arm64-tar",
+      "osx-x64-pkg",
+      "osx-x64-tar",
+      "src",
+      "win-x64-7z",
+      "win-x64-exe",
+      "win-x64-msi",
+      "win-x64-zip",
+      "win-x86-7z",
+      "win-x86-exe",
+      "win-x86-msi",
+      "win-x86-zip"
+    ],
+    "npm": "8.19.2",
+    "v8": "10.9.88.0",
+    "uv": "1.43.0",
+    "zlib": "1.2.11",
+    "openssl": "3.0.5+quic",
+    "modules": "112",
+    "lts": false,
+    "security": false
+  },
+  {
+    "version": "v20.0.0-v8-canary20221025b063237e20",
+    "date": "2022-10-25",
+    "files": [
+      "headers",
+      "linux-arm64",
+      "linux-armv7l",
+      "linux-ppc64le",
+      "linux-x64",
+      "osx-arm64-tar",
+      "osx-x64-pkg",
+      "osx-x64-tar",
+      "src",
+      "win-x64-7z",
+      "win-x64-exe",
+      "win-x64-msi",
+      "win-x64-zip",
+      "win-x86-7z",
+      "win-x86-exe",
+      "win-x86-msi",
+      "win-x86-zip"
+    ],
+    "npm": "8.19.2",
+    "v8": "10.9.73.0",
+    "uv": "1.43.0",
+    "zlib": "1.2.11",
+    "openssl": "3.0.5+quic",
+    "modules": "112",
+    "lts": false,
+    "security": false
+  },
+  {
+    "version": "v20.0.0-v8-canary2022102454996f930f",
+    "date": "2022-10-24",
+    "files": [
+      "headers",
+      "linux-arm64",
+      "linux-armv7l",
+      "linux-ppc64le",
+      "linux-x64",
+      "osx-arm64-tar",
+      "osx-x64-pkg",
+      "osx-x64-tar",
+      "src",
+      "win-x64-7z",
+      "win-x64-exe",
+      "win-x64-msi",
+      "win-x64-zip",
+      "win-x86-7z",
+      "win-x86-exe",
+      "win-x86-msi",
+      "win-x86-zip"
+    ],
+    "npm": "8.19.2",
+    "v8": "10.9.61.0",
+    "uv": "1.43.0",
+    "zlib": "1.2.11",
+    "openssl": "3.0.5+quic",
+    "modules": "112",
+    "lts": false,
+    "security": false
+  },
+  {
+    "version": "v20.0.0-v8-canary2022102310ff1e5a8d",
+    "date": "2022-10-23",
+    "files": [
+      "headers",
+      "linux-arm64",
+      "linux-armv7l",
+      "linux-ppc64le",
+      "linux-x64",
+      "osx-arm64-tar",
+      "osx-x64-tar",
+      "src",
+      "win-x64-7z",
+      "win-x64-exe",
+      "win-x64-msi",
+      "win-x64-zip",
+      "win-x86-7z",
+      "win-x86-exe",
+      "win-x86-msi",
+      "win-x86-zip"
+    ],
+    "npm": "8.19.2",
+    "v8": "10.9.61.0",
+    "uv": "1.43.0",
+    "zlib": "1.2.11",
+    "openssl": "3.0.5+quic",
+    "modules": "112",
+    "lts": false,
+    "security": false
+  },
+  {
+    "version": "v20.0.0-v8-canary20221022e83bcb6c41",
+    "date": "2022-10-22",
+    "files": [
+      "headers",
+      "linux-arm64",
+      "linux-armv7l",
+      "linux-x64",
+      "osx-arm64-tar",
+      "osx-x64-tar",
+      "src",
+      "win-x64-7z",
+      "win-x64-exe",
+      "win-x64-msi",
+      "win-x64-zip",
+      "win-x86-7z",
+      "win-x86-exe",
+      "win-x86-msi",
+      "win-x86-zip"
+    ],
+    "npm": "8.19.2",
+    "v8": "10.9.60.0",
+    "uv": "1.43.0",
+    "zlib": "1.2.11",
+    "openssl": "3.0.5+quic",
+    "modules": "112",
+    "lts": false,
+    "security": false
+  },
+  {
+    "version": "v20.0.0-v8-canary20221021f6d5f347fa",
+    "date": "2022-10-21",
+    "files": [
+      "headers",
+      "linux-arm64",
+      "linux-armv7l",
+      "linux-x64",
+      "osx-arm64-tar",
+      "osx-x64-tar",
+      "src",
+      "win-x64-7z",
+      "win-x64-exe",
+      "win-x64-msi",
+      "win-x64-zip"
+    ],
+    "npm": "8.19.2",
+    "v8": "10.9.48.0",
+    "uv": "1.43.0",
+    "zlib": "1.2.11",
+    "openssl": "3.0.5+quic",
+    "modules": "112",
+    "lts": false,
+    "security": false
+  },
+  {
+    "version": "v20.0.0-v8-canary20221020f78c149307",
+    "date": "2022-10-20",
+    "files": [
+      "headers",
+      "linux-arm64",
+      "linux-armv7l",
+      "linux-x64",
+      "osx-arm64-tar",
+      "osx-x64-pkg",
+      "osx-x64-tar",
+      "src",
+      "win-x64-7z",
+      "win-x64-exe",
+      "win-x64-msi",
+      "win-x64-zip"
+    ],
+    "npm": "8.19.2",
+    "v8": "10.9.38.0",
+    "uv": "1.43.0",
+    "zlib": "1.2.11",
+    "openssl": "3.0.5+quic",
+    "modules": "112",
+    "lts": false,
+    "security": false
+  },
+  {
+    "version": "v20.0.0-v8-canary20221019d52c76f76e",
+    "date": "2022-10-19",
+    "files": [
+      "aix-ppc64",
+      "headers",
+      "linux-arm64",
+      "linux-armv7l",
+      "linux-ppc64le",
+      "linux-x64",
+      "osx-arm64-tar",
+      "osx-x64-pkg",
+      "osx-x64-tar",
+      "src",
+      "win-x64-7z",
+      "win-x64-exe",
+      "win-x64-msi",
+      "win-x64-zip"
+    ],
+    "npm": "8.19.2",
+    "v8": "10.9.27.0",
+    "uv": "1.43.0",
+    "zlib": "1.2.11",
+    "openssl": "3.0.5+quic",
+    "modules": "112",
+    "lts": false,
+    "security": false
+  },
+  {
+    "version": "v19.0.0-v8-canary202210187d6960f23f",
+    "date": "2022-10-18",
+    "files": [
+      "aix-ppc64",
+      "headers",
+      "linux-arm64",
+      "linux-armv7l",
+      "linux-ppc64le",
+      "linux-s390x",
+      "linux-x64",
+      "osx-arm64-tar",
+      "osx-x64-tar",
+      "src",
+      "win-x64-7z",
+      "win-x64-exe",
+      "win-x64-msi",
+      "win-x64-zip"
+    ],
+    "npm": "8.19.2",
+    "v8": "10.9.12.0",
+    "uv": "1.43.0",
+    "zlib": "1.2.11",
+    "openssl": "3.0.5+quic",
+    "modules": "112",
+    "lts": false,
+    "security": false
+  },
+  {
+    "version": "v19.0.0-v8-canary202210172ec229fc56",
+    "date": "2022-10-17",
+    "files": [
+      "aix-ppc64",
+      "headers",
+      "linux-arm64",
+      "linux-armv7l",
+      "linux-ppc64le",
+      "linux-s390x",
+      "linux-x64",
+      "osx-arm64-tar",
+      "osx-x64-tar",
+      "src",
+      "win-x64-7z",
+      "win-x64-exe",
+      "win-x64-msi",
+      "win-x64-zip"
+    ],
+    "npm": "8.19.2",
+    "v8": "10.9.6.0",
+    "uv": "1.43.0",
+    "zlib": "1.2.11",
+    "openssl": "3.0.5+quic",
+    "modules": "112",
+    "lts": false,
+    "security": false
+  }
+]

__tests__/main.test.ts

@@ -0,0 +1,303 @@
+import * as core from '@actions/core';
+import * as exec from '@actions/exec';
+import * as tc from '@actions/tool-cache';
+import * as cache from '@actions/cache';
+
+import fs from 'fs';
+import path from 'path';
+import osm from 'os';
+
+import each from 'jest-each';
+
+import * as main from '../src/main';
+import * as util from '../src/util';
+import OfficialBuilds from '../src/distributions/official_builds/official_builds';
+
+describe('main tests', () => {
+  let inputs = {} as any;
+  let os = {} as any;
+
+  let infoSpy: jest.SpyInstance;
+  let warningSpy: jest.SpyInstance;
+  let inSpy: jest.SpyInstance;
+  let setOutputSpy: jest.SpyInstance;
+  let startGroupSpy: jest.SpyInstance;
+  let endGroupSpy: jest.SpyInstance;
+
+  let existsSpy: jest.SpyInstance;
+
+  let getExecOutputSpy: jest.SpyInstance;
+
+  let parseNodeVersionSpy: jest.SpyInstance;
+  let cnSpy: jest.SpyInstance;
+  let findSpy: jest.SpyInstance;
+  let isCacheActionAvailable: jest.SpyInstance;
+
+  let setupNodeJsSpy: jest.SpyInstance;
+
+  beforeEach(() => {
+    inputs = {};
+
+    // node
+    os = {};
+    console.log('::stop-commands::stoptoken');
+    process.env['GITHUB_PATH'] = ''; // Stub out ENV file functionality so we can verify it writes to standard out
+    process.env['GITHUB_OUTPUT'] = ''; // Stub out ENV file functionality so we can verify it writes to standard out
+    infoSpy = jest.spyOn(core, 'info');
+    infoSpy.mockImplementation(() => {});
+    setOutputSpy = jest.spyOn(core, 'setOutput');
+    setOutputSpy.mockImplementation(() => {});
+    warningSpy = jest.spyOn(core, 'warning');
+    warningSpy.mockImplementation(() => {});
+    startGroupSpy = jest.spyOn(core, 'startGroup');
+    startGroupSpy.mockImplementation(() => {});
+    endGroupSpy = jest.spyOn(core, 'endGroup');
+    endGroupSpy.mockImplementation(() => {});
+    inSpy = jest.spyOn(core, 'getInput');
+    inSpy.mockImplementation(name => inputs[name]);
+
+    getExecOutputSpy = jest.spyOn(exec, 'getExecOutput');
+
+    findSpy = jest.spyOn(tc, 'find');
+
+    isCacheActionAvailable = jest.spyOn(cache, 'isFeatureAvailable');
+
+    existsSpy = jest.spyOn(fs, 'existsSync');
+
+    cnSpy = jest.spyOn(process.stdout, 'write');
+    cnSpy.mockImplementation(line => {
+      // uncomment to debug
+      // process.stderr.write('write:' + line + '\n');
+    });
+
+    setupNodeJsSpy = jest.spyOn(OfficialBuilds.prototype, 'setupNodeJs');
+    setupNodeJsSpy.mockImplementation(() => {});
+  });
+
+  afterEach(() => {
+    jest.resetAllMocks();
+    jest.clearAllMocks();
+    //jest.restoreAllMocks();
+  });
+
+  afterAll(async () => {
+    console.log('::stoptoken::');
+    jest.restoreAllMocks();
+  }, 100000);
+
+  describe('parseNodeVersionFile', () => {
+    each`
+      contents                                     | expected
+      ${'12'}                                      | ${'12'}
+      ${'12.3'}                                    | ${'12.3'}
+      ${'12.3.4'}                                  | ${'12.3.4'}
+      ${'v12.3.4'}                                 | ${'12.3.4'}
+      ${'lts/erbium'}                              | ${'lts/erbium'}
+      ${'lts/*'}                                   | ${'lts/*'}
+      ${'nodejs 12.3.4'}                           | ${'12.3.4'}
+      ${'ruby 2.3.4\nnodejs 12.3.4\npython 3.4.5'} | ${'12.3.4'}
+      ${''}                                        | ${''}
+      ${'unknown format'}                          | ${'unknown format'}
+      ${'  14.1.0  '}                              | ${'14.1.0'}
+      ${'{"volta": {"node": ">=14.0.0 <=17.0.0"}}'}| ${'>=14.0.0 <=17.0.0'}
+      ${'{"engines": {"node": "17.0.0"}}'}         | ${'17.0.0'}
+    `.it('parses "$contents"', ({contents, expected}) => {
+      expect(util.parseNodeVersionFile(contents)).toBe(expected);
+    });
+  });
+
+  describe('printEnvDetailsAndSetOutput', () => {
+    it.each([
+      [{node: '12.0.2', npm: '6.3.3', yarn: '1.22.11'}],
+      [{node: '16.0.2', npm: '7.3.3', yarn: '2.22.11'}],
+      [{node: '14.0.1', npm: '8.1.0', yarn: '3.2.1'}],
+      [{node: '17.0.2', npm: '6.3.3', yarn: ''}]
+    ])('Tools versions %p', async obj => {
+      getExecOutputSpy.mockImplementation(async command => {
+        if (Reflect.has(obj, command) && !obj[command]) {
+          return {
+            stdout: '',
+            stderr: `${command} does not exist`,
+            exitCode: 1
+          };
+        }
+
+        return {stdout: obj[command], stderr: '', exitCode: 0};
+      });
+
+      await util.printEnvDetailsAndSetOutput();
+
+      expect(setOutputSpy).toHaveBeenCalledWith('node-version', obj['node']);
+      Object.getOwnPropertyNames(obj).forEach(name => {
+        if (!obj[name]) {
+          expect(infoSpy).toHaveBeenCalledWith(
+            `[warning]${name} does not exist`
+          );
+        }
+        expect(infoSpy).toHaveBeenCalledWith(`${name}: ${obj[name]}`);
+      });
+    });
+  });
+
+  describe('node-version-file flag', () => {
+    beforeEach(() => {
+      parseNodeVersionSpy = jest.spyOn(util, 'parseNodeVersionFile');
+    });
+
+    it('not used if node-version is provided', async () => {
+      // Arrange
+      inputs['node-version'] = '12';
+
+      // Act
+      await main.run();
+
+      // Assert
+      expect(parseNodeVersionSpy).toHaveBeenCalledTimes(0);
+    }, 10000);
+
+    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(infoSpy).toHaveBeenCalledWith(
+        `Resolved ${versionFile} as ${expectedVersionSpec}`
+      );
+    }, 10000);
+
+    it('reads package.json as node-version-file if provided', async () => {
+      // Arrange
+      const versionSpec = fs.readFileSync(
+        path.join(__dirname, 'data/package.json'),
+        'utf-8'
+      );
+      const versionFile = 'package.json';
+      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(infoSpy).toHaveBeenCalledWith(
+        `Resolved ${versionFile} as ${expectedVersionSpec}`
+      );
+    }, 10000);
+
+    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('cache on GHES', () => {
+    it('Should throw an error, because cache is not supported', async () => {
+      inputs['node-version'] = '12';
+      inputs['cache'] = 'npm';
+
+      inSpy.mockImplementation(name => inputs[name]);
+
+      let toolPath = path.normalize('/cache/node/12.16.1/x64');
+      findSpy.mockImplementation(() => toolPath);
+
+      // expect(logSpy).toHaveBeenCalledWith(`Found in cache @ ${toolPath}`);
+      process.env['GITHUB_SERVER_URL'] = 'https://www.test.com';
+      isCacheActionAvailable.mockImplementation(() => false);
+
+      await main.run();
+
+      expect(warningSpy).toHaveBeenCalledWith(
+        `Cache action is only supported on GHES version >= 3.5. If you are on version >=3.5 Please check with GHES admin if Actions cache service is enabled or not.`
+      );
+    });
+
+    it('Should throw an internal error', async () => {
+      inputs['node-version'] = '12';
+      inputs['cache'] = 'npm';
+
+      inSpy.mockImplementation(name => inputs[name]);
+
+      let toolPath = path.normalize('/cache/node/12.16.1/x64');
+      findSpy.mockImplementation(() => toolPath);
+
+      // expect(logSpy).toHaveBeenCalledWith(`Found in cache @ ${toolPath}`);
+      process.env['GITHUB_SERVER_URL'] = '';
+      isCacheActionAvailable.mockImplementation(() => false);
+
+      await main.run();
+
+      expect(warningSpy).toHaveBeenCalledWith(
+        'The runner was not able to contact the cache service. Caching will be skipped'
+      );
+    });
+  });
+});

__tests__/nightly-installer.test.ts

@@ -0,0 +1,517 @@
+import * as core from '@actions/core';
+import * as io from '@actions/io';
+import * as tc from '@actions/tool-cache';
+import * as httpm from '@actions/http-client';
+import * as exec from '@actions/exec';
+import * as cache from '@actions/cache';
+import fs from 'fs';
+import cp from 'child_process';
+import osm from 'os';
+import path from 'path';
+import * as main from '../src/main';
+import * as auth from '../src/authutil';
+import {INodeVersion} from '../src/distributions/base-models';
+
+const nodeTestManifest = require('./data/versions-manifest.json');
+const nodeTestDist = require('./data/node-dist-index.json');
+const nodeTestDistNightly = require('./data/node-nightly-index.json');
+const nodeTestDistRc = require('./data/node-rc-index.json');
+const nodeV8CanaryTestDist = require('./data/v8-canary-dist-index.json');
+
+describe('setup-node', () => {
+  let inputs = {} as any;
+  let os = {} as any;
+
+  let inSpy: jest.SpyInstance;
+  let findSpy: jest.SpyInstance;
+  let findAllVersionsSpy: jest.SpyInstance;
+  let cnSpy: jest.SpyInstance;
+  let logSpy: jest.SpyInstance;
+  let warningSpy: jest.SpyInstance;
+  let getManifestSpy: jest.SpyInstance;
+  let getDistSpy: jest.SpyInstance;
+  let platSpy: jest.SpyInstance;
+  let archSpy: jest.SpyInstance;
+  let dlSpy: jest.SpyInstance;
+  let exSpy: jest.SpyInstance;
+  let cacheSpy: jest.SpyInstance;
+  let dbgSpy: jest.SpyInstance;
+  let whichSpy: jest.SpyInstance;
+  let existsSpy: jest.SpyInstance;
+  let mkdirpSpy: jest.SpyInstance;
+  let execSpy: jest.SpyInstance;
+  let authSpy: jest.SpyInstance;
+  let parseNodeVersionSpy: jest.SpyInstance;
+  let isCacheActionAvailable: jest.SpyInstance;
+  let getExecOutputSpy: jest.SpyInstance;
+  let getJsonSpy: jest.SpyInstance;
+
+  beforeEach(() => {
+    // @actions/core
+    console.log('::stop-commands::stoptoken'); // Disable executing of runner commands when running tests in actions
+    process.env['GITHUB_PATH'] = ''; // Stub out ENV file functionality so we can verify it writes to standard out
+    process.env['GITHUB_OUTPUT'] = ''; // Stub out ENV file functionality so we can verify it writes to standard out
+    inputs = {};
+    inSpy = jest.spyOn(core, 'getInput');
+    inSpy.mockImplementation(name => inputs[name]);
+
+    // node
+    os = {};
+    platSpy = jest.spyOn(osm, 'platform');
+    platSpy.mockImplementation(() => os['platform']);
+    archSpy = jest.spyOn(osm, 'arch');
+    archSpy.mockImplementation(() => os['arch']);
+    execSpy = jest.spyOn(cp, 'execSync');
+
+    // @actions/tool-cache
+    findSpy = jest.spyOn(tc, 'find');
+    findAllVersionsSpy = jest.spyOn(tc, 'findAllVersions');
+    dlSpy = jest.spyOn(tc, 'downloadTool');
+    exSpy = jest.spyOn(tc, 'extractTar');
+    cacheSpy = jest.spyOn(tc, 'cacheDir');
+    getManifestSpy = jest.spyOn(tc, 'getManifestFromRepo');
+
+    // http-client
+    getJsonSpy = jest.spyOn(httpm.HttpClient.prototype, 'getJson');
+
+    // io
+    whichSpy = jest.spyOn(io, 'which');
+    existsSpy = jest.spyOn(fs, 'existsSync');
+    mkdirpSpy = jest.spyOn(io, 'mkdirP');
+
+    // @actions/tool-cache
+    isCacheActionAvailable = jest.spyOn(cache, 'isFeatureAvailable');
+
+    // disable authentication portion for installer tests
+    authSpy = jest.spyOn(auth, 'configAuthentication');
+    authSpy.mockImplementation(() => {});
+
+    getJsonSpy.mockImplementation(url => {
+      let res: any;
+      if (url.includes('/rc')) {
+        res = <INodeVersion>nodeTestDistRc;
+      } else if (url.includes('/nightly')) {
+        res = <INodeVersion>nodeTestDistNightly;
+      } else {
+        res = <INodeVersion>nodeTestDist;
+      }
+
+      return {result: res};
+    });
+
+    // writes
+    cnSpy = jest.spyOn(process.stdout, 'write');
+    logSpy = jest.spyOn(core, 'info');
+    dbgSpy = jest.spyOn(core, 'debug');
+    warningSpy = jest.spyOn(core, 'warning');
+    cnSpy.mockImplementation(line => {
+      // uncomment to debug
+      // process.stderr.write('write:' + line + '\n');
+    });
+    logSpy.mockImplementation(line => {
+      // uncomment to debug
+      // process.stderr.write('log:' + line + '\n');
+    });
+    dbgSpy.mockImplementation(msg => {
+      // uncomment to see debug output
+      // process.stderr.write(msg + '\n');
+    });
+    warningSpy.mockImplementation(msg => {
+      // uncomment to debug
+      // process.stderr.write('log:' + msg + '\n');
+    });
+
+    // @actions/exec
+    getExecOutputSpy = jest.spyOn(exec, 'getExecOutput');
+    getExecOutputSpy.mockImplementation(() => 'v16.15.0');
+  });
+
+  afterEach(() => {
+    jest.resetAllMocks();
+    jest.clearAllMocks();
+    //jest.restoreAllMocks();
+  });
+
+  afterAll(async () => {
+    console.log('::stoptoken::'); // Re-enable executing of runner commands when running tests in actions
+    jest.restoreAllMocks();
+  }, 100000);
+
+  //--------------------------------------------------
+  // Found in cache tests
+  //--------------------------------------------------
+
+  it('finds version in cache with stable true', async () => {
+    inputs['node-version'] = '16-nightly';
+    os['arch'] = 'x64';
+    inputs.stable = 'true';
+
+    let toolPath = path.normalize(
+      '/cache/node/16.0.0-nightly20210417bc31dc0e0f/x64'
+    );
+    findSpy.mockImplementation(() => toolPath);
+    findAllVersionsSpy.mockImplementation(() => [
+      '12.0.1',
+      '16.0.0-nightly20210415c3a5e15ebe',
+      '16.0.0-nightly20210417bc31dc0e0f',
+      '16.1.3'
+    ]);
+
+    await main.run();
+
+    expect(findSpy).toHaveBeenCalledWith(
+      'node',
+      '16.0.0-nightly20210417bc31dc0e0f',
+      'x64'
+    );
+    expect(logSpy).toHaveBeenCalledWith(`Found in cache @ ${toolPath}`);
+  });
+
+  it('finds version in cache with stable false', async () => {
+    inputs['node-version'] = '16.0.0-nightly20210415c3a5e15ebe';
+    os['arch'] = 'x64';
+    inputs.stable = 'false';
+
+    let toolPath = path.normalize(
+      '/cache/node/16.0.0-nightly20210415c3a5e15ebe/x64'
+    );
+    findSpy.mockImplementation(() => toolPath);
+    findAllVersionsSpy.mockImplementation(() => [
+      '12.0.1',
+      '16.0.0-nightly20210415c3a5e15ebe',
+      '16.0.0-nightly20210417bc31dc0e0f',
+      '16.1.3'
+    ]);
+
+    await main.run();
+
+    expect(findSpy).toHaveBeenCalledWith(
+      'node',
+      '16.0.0-nightly20210415c3a5e15ebe',
+      'x64'
+    );
+    expect(logSpy).toHaveBeenCalledWith(`Found in cache @ ${toolPath}`);
+  });
+
+  it('finds version in cache and adds it to the path', async () => {
+    inputs['node-version'] = '16-nightly';
+    os['arch'] = 'x64';
+
+    inSpy.mockImplementation(name => inputs[name]);
+
+    let toolPath = path.normalize(
+      '/cache/node/16.0.0-nightly20210417bc31dc0e0f/x64'
+    );
+    findSpy.mockImplementation(() => toolPath);
+    findAllVersionsSpy.mockImplementation(() => [
+      '12.0.1',
+      '16.0.0-nightly20210415c3a5e15ebe',
+      '16.0.0-nightly20210417bc31dc0e0f',
+      '16.1.3'
+    ]);
+
+    await main.run();
+
+    expect(findSpy).toHaveBeenCalledWith(
+      'node',
+      '16.0.0-nightly20210417bc31dc0e0f',
+      'x64'
+    );
+
+    let expPath = path.join(toolPath, 'bin');
+    expect(cnSpy).toHaveBeenCalledWith(`::add-path::${expPath}${osm.EOL}`);
+  });
+
+  it('handles unhandled find error and reports error', async () => {
+    let errMsg = 'unhandled error message';
+    inputs['node-version'] = '16.0.0-nightly20210417bc31dc0e0f';
+
+    findAllVersionsSpy.mockImplementation(() => [
+      '12.0.1',
+      '16.0.0-nightly20210415c3a5e15ebe',
+      '16.0.0-nightly20210417bc31dc0e0f',
+      '16.1.3'
+    ]);
+
+    findSpy.mockImplementation(() => {
+      throw new Error(errMsg);
+    });
+
+    await main.run();
+
+    expect(cnSpy).toHaveBeenCalledWith('::error::' + errMsg + osm.EOL);
+  });
+
+  it('falls back to a version from node dist', async () => {
+    os.platform = 'linux';
+    os.arch = 'x64';
+
+    // a version which is not in the manifest but is in node dist
+    let versionSpec = '13.13.1-nightly20200415947ddec091';
+
+    inputs['node-version'] = versionSpec;
+    inputs['always-auth'] = false;
+    inputs['token'] = 'faketoken';
+
+    // ... but not in the local cache
+    findSpy.mockImplementation(() => '');
+    findAllVersionsSpy.mockImplementation(() => []);
+
+    dlSpy.mockImplementation(async () => '/some/temp/path');
+    let toolPath = path.normalize(
+      '/cache/node/13.13.1-nightly20200415947ddec091/x64'
+    );
+    exSpy.mockImplementation(async () => '/some/other/temp/path');
+    cacheSpy.mockImplementation(async () => toolPath);
+
+    await main.run();
+
+    let expPath = path.join(toolPath, 'bin');
+
+    expect(dlSpy).toHaveBeenCalled();
+    expect(exSpy).toHaveBeenCalled();
+    expect(cnSpy).toHaveBeenCalledWith(`::add-path::${expPath}${osm.EOL}`);
+  });
+
+  it('does not find a version that does not exist', async () => {
+    os.platform = 'linux';
+    os.arch = 'x64';
+
+    let versionSpec = '10.13.1-nightly20200415947ddec091';
+    inputs['node-version'] = versionSpec;
+
+    findSpy.mockImplementation(() => '');
+    findAllVersionsSpy.mockImplementation(() => []);
+    await main.run();
+
+    expect(cnSpy).toHaveBeenCalledWith(
+      `::error::Unable to find Node version '${versionSpec}' for platform ${os.platform} and architecture ${os.arch}.${osm.EOL}`
+    );
+  });
+
+  it('reports a failed download', async () => {
+    let errMsg = 'unhandled download message';
+    os.platform = 'linux';
+    os.arch = 'x64';
+
+    // a version which is in the manifest
+    let versionSpec = '18.0.0-nightly202204180699150267';
+
+    inputs['node-version'] = versionSpec;
+    inputs['always-auth'] = false;
+    inputs['token'] = 'faketoken';
+
+    findSpy.mockImplementation(() => '');
+    findAllVersionsSpy.mockImplementation(() => []);
+
+    dlSpy.mockImplementation(() => {
+      throw new Error(errMsg);
+    });
+    await main.run();
+
+    expect(cnSpy).toHaveBeenCalledWith(`::error::${errMsg}${osm.EOL}`);
+  });
+
+  it('acquires specified architecture of node', async () => {
+    for (const {arch, version, osSpec} of [
+      {
+        arch: 'x86',
+        version: '18.0.0-nightly202110204cb3e06ed8',
+        osSpec: 'win32'
+      },
+      {
+        arch: 'x86',
+        version: '20.0.0-nightly2022101987cdf7d412',
+        osSpec: 'win32'
+      }
+    ]) {
+      os.platform = osSpec;
+      os.arch = arch;
+      const fileExtension = os.platform === 'win32' ? '7z' : 'tar.gz';
+      const platform = {
+        linux: 'linux',
+        darwin: 'darwin',
+        win32: 'win'
+      }[os.platform];
+
+      inputs['node-version'] = version;
+      inputs['architecture'] = arch;
+      inputs['always-auth'] = false;
+      inputs['token'] = 'faketoken';
+
+      let expectedUrl = `https://nodejs.org/download/nightly/v${version}/node-v${version}-${platform}-${arch}.${fileExtension}`;
+
+      // ... but not in the local cache
+      findSpy.mockImplementation(() => '');
+      findAllVersionsSpy.mockImplementation(() => []);
+
+      dlSpy.mockImplementation(async () => '/some/temp/path');
+      let toolPath = path.normalize(`/cache/node/${version}/${arch}`);
+      exSpy.mockImplementation(async () => '/some/other/temp/path');
+      cacheSpy.mockImplementation(async () => toolPath);
+
+      await main.run();
+      expect(dlSpy).toHaveBeenCalled();
+      expect(logSpy).toHaveBeenCalledWith(
+        `Acquiring ${version} - ${arch} from ${expectedUrl}`
+      );
+    }
+  }, 100000);
+
+  describe('nightly versions', () => {
+    it.each([
+      [
+        '17.5.0-nightly',
+        '17.5.0-nightly20220209e43808936a',
+        'https://nodejs.org/download/nightly/v17.5.0-nightly20220209e43808936a/node-v17.5.0-nightly20220209e43808936a-linux-x64.tar.gz'
+      ],
+      [
+        '17-nightly',
+        '17.5.0-nightly20220209e43808936a',
+        'https://nodejs.org/download/nightly/v17.5.0-nightly20220209e43808936a/node-v17.5.0-nightly20220209e43808936a-linux-x64.tar.gz'
+      ],
+      [
+        '18.0.0-nightly',
+        '18.0.0-nightly20220419bde889bd4e',
+        'https://nodejs.org/download/nightly/v18.0.0-nightly20220419bde889bd4e/node-v18.0.0-nightly20220419bde889bd4e-linux-x64.tar.gz'
+      ],
+      [
+        '18-nightly',
+        '18.0.0-nightly20220419bde889bd4e',
+        'https://nodejs.org/download/nightly/v18.0.0-nightly20220419bde889bd4e/node-v18.0.0-nightly20220419bde889bd4e-linux-x64.tar.gz'
+      ],
+      [
+        '20.0.0-nightly',
+        '20.0.0-nightly2022101987cdf7d412',
+        'https://nodejs.org/download/nightly/v20.0.0-nightly2022101987cdf7d412/node-v20.0.0-nightly2022101987cdf7d412-linux-x64.tar.gz'
+      ]
+    ])(
+      'finds the versions in the index.json and installs it',
+      async (input, expectedVersion, expectedUrl) => {
+        const toolPath = path.normalize(`/cache/node/${expectedVersion}/x64`);
+
+        findSpy.mockImplementation(() => '');
+        findAllVersionsSpy.mockImplementation(() => []);
+        dlSpy.mockImplementation(async () => '/some/temp/path');
+        exSpy.mockImplementation(async () => '/some/other/temp/path');
+        cacheSpy.mockImplementation(async () => toolPath);
+
+        inputs['node-version'] = input;
+        os['arch'] = 'x64';
+        os['platform'] = 'linux';
+        // act
+        await main.run();
+
+        // assert
+        expect(logSpy).toHaveBeenCalledWith(
+          `Acquiring ${expectedVersion} - ${os.arch} from ${expectedUrl}`
+        );
+        expect(logSpy).toHaveBeenCalledWith('Extracting ...');
+        expect(logSpy).toHaveBeenCalledWith('Adding to the cache ...');
+        expect(cnSpy).toHaveBeenCalledWith(
+          `::add-path::${path.join(toolPath, 'bin')}${osm.EOL}`
+        );
+      }
+    );
+
+    it.each([
+      ['17.5.0-nightly', '17.5.0-nightly20220209e43808936a'],
+      ['17-nightly', '17.5.0-nightly20220209e43808936a'],
+      ['20.0.0-nightly', '20.0.0-nightly2022101987cdf7d412']
+    ])(
+      'finds the %s version in the hostedToolcache',
+      async (input, expectedVersion) => {
+        const toolPath = path.normalize(`/cache/node/${expectedVersion}/x64`);
+        findSpy.mockReturnValue(toolPath);
+        findAllVersionsSpy.mockReturnValue([
+          '17.5.0-nightly20220209e43808936a',
+          '17.5.0-nightly20220209e43808935a',
+          '20.0.0-nightly2022101987cdf7d412',
+          '20.0.0-nightly2022101987cdf7d411'
+        ]);
+
+        inputs['node-version'] = input;
+        os['arch'] = 'x64';
+        os['platform'] = 'linux';
+
+        // act
+        await main.run();
+
+        // assert
+        expect(findAllVersionsSpy).toHaveBeenCalled();
+        expect(logSpy).toHaveBeenCalledWith(`Found in cache @ ${toolPath}`);
+        expect(cnSpy).toHaveBeenCalledWith(
+          `::add-path::${path.join(toolPath, 'bin')}${osm.EOL}`
+        );
+      }
+    );
+
+    it.each([
+      [
+        '17.5.0-nightly',
+        '17.5.0-nightly20220209e43808936a',
+        '17.0.0-nightly202110193f11666dc7',
+        'https://nodejs.org/download/nightly/v17.5.0-nightly20220209e43808936a/node-v17.5.0-nightly20220209e43808936a-linux-x64.tar.gz'
+      ],
+      [
+        '17-nightly',
+        '17.5.0-nightly20220209e43808936a',
+        '17.0.0-nightly202110193f11666dc7',
+        'https://nodejs.org/download/nightly/v17.5.0-nightly20220209e43808936a/node-v17.5.0-nightly20220209e43808936a-linux-x64.tar.gz'
+      ],
+      [
+        '18.0.0-nightly',
+        '18.0.0-nightly20220419bde889bd4e',
+        '18.0.0-nightly202204180699150267',
+        'https://nodejs.org/download/nightly/v18.0.0-nightly20220419bde889bd4e/node-v18.0.0-nightly20220419bde889bd4e-linux-x64.tar.gz'
+      ],
+      [
+        '18-nightly',
+        '18.0.0-nightly20220419bde889bd4e',
+        '18.0.0-nightly202204180699150267',
+        'https://nodejs.org/download/nightly/v18.0.0-nightly20220419bde889bd4e/node-v18.0.0-nightly20220419bde889bd4e-linux-x64.tar.gz'
+      ],
+      [
+        '20.0.0-nightly',
+        '20.0.0-nightly2022101987cdf7d412',
+        '20.0.0-nightly2022101987cdf7d411',
+        'https://nodejs.org/download/nightly/v20.0.0-nightly2022101987cdf7d412/node-v20.0.0-nightly2022101987cdf7d412-linux-x64.tar.gz'
+      ]
+    ])(
+      'get %s version from dist if check-latest is true',
+      async (input, expectedVersion, foundVersion, expectedUrl) => {
+        const foundToolPath = path.normalize(`/cache/node/${foundVersion}/x64`);
+        const toolPath = path.normalize(`/cache/node/${expectedVersion}/x64`);
+
+        inputs['node-version'] = input;
+        inputs['check-latest'] = 'true';
+        os['arch'] = 'x64';
+        os['platform'] = 'linux';
+
+        findSpy.mockReturnValue(foundToolPath);
+        findAllVersionsSpy.mockReturnValue([
+          '17.0.0-nightly202110193f11666dc7',
+          '18.0.0-nightly202204180699150267',
+          '20.0.0-nightly2022101987cdf7d411'
+        ]);
+        dlSpy.mockImplementation(async () => '/some/temp/path');
+        exSpy.mockImplementation(async () => '/some/other/temp/path');
+        cacheSpy.mockImplementation(async () => toolPath);
+
+        // act
+        await main.run();
+
+        // assert
+        expect(findAllVersionsSpy).toHaveBeenCalled();
+        expect(logSpy).toHaveBeenCalledWith(
+          `Acquiring ${expectedVersion} - ${os.arch} from ${expectedUrl}`
+        );
+        expect(logSpy).toHaveBeenCalledWith('Extracting ...');
+        expect(logSpy).toHaveBeenCalledWith('Adding to the cache ...');
+        expect(cnSpy).toHaveBeenCalledWith(
+          `::add-path::${path.join(toolPath, 'bin')}${osm.EOL}`
+        );
+      }
+    );
+  });
+});

__tests__/official-installer.test.ts

@@ -1,31 +1,36 @@
 import * as core from '@actions/core';
 import * as io from '@actions/io';
 import * as tc from '@actions/tool-cache';
+import * as httpm from '@actions/http-client';
 import * as exec from '@actions/exec';
-import * as im from '../src/installer';
 import * as cache from '@actions/cache';
 import fs from 'fs';
 import cp from 'child_process';
-import osm = require('os');
+import osm from 'os';
 import path from 'path';
-import each from 'jest-each';
 import * as main from '../src/main';
 import * as auth from '../src/authutil';
+import OfficialBuilds from '../src/distributions/official_builds/official_builds';
+import {INodeVersion} from '../src/distributions/base-models';
 
-let nodeTestManifest = require('./data/versions-manifest.json');
-let nodeTestDist = require('./data/node-dist-index.json');
+const nodeTestManifest = require('./data/versions-manifest.json');
+const nodeTestDist = require('./data/node-dist-index.json');
+const nodeTestDistNightly = require('./data/node-nightly-index.json');
+const nodeTestDistRc = require('./data/node-rc-index.json');
+const nodeV8CanaryTestDist = require('./data/v8-canary-dist-index.json');
 
 describe('setup-node', () => {
+  let build: OfficialBuilds;
   let inputs = {} as any;
   let os = {} as any;
 
   let inSpy: jest.SpyInstance;
   let findSpy: jest.SpyInstance;
+  let findAllVersionsSpy: jest.SpyInstance;
   let cnSpy: jest.SpyInstance;
   let logSpy: jest.SpyInstance;
   let warningSpy: jest.SpyInstance;
   let getManifestSpy: jest.SpyInstance;
-  let getDistSpy: jest.SpyInstance;
   let platSpy: jest.SpyInstance;
   let archSpy: jest.SpyInstance;
   let dlSpy: jest.SpyInstance;
@@ -38,14 +43,15 @@ describe('setup-node', () => {
   let mkdirpSpy: jest.SpyInstance;
   let execSpy: jest.SpyInstance;
   let authSpy: jest.SpyInstance;
-  let parseNodeVersionSpy: jest.SpyInstance;
   let isCacheActionAvailable: jest.SpyInstance;
   let getExecOutputSpy: jest.SpyInstance;
+  let getJsonSpy: jest.SpyInstance;
 
   beforeEach(() => {
     // @actions/core
     console.log('::stop-commands::stoptoken'); // Disable executing of runner commands when running tests in actions
     process.env['GITHUB_PATH'] = ''; // Stub out ENV file functionality so we can verify it writes to standard out
+    process.env['GITHUB_OUTPUT'] = ''; // Stub out ENV file functionality so we can verify it writes to standard out
     inputs = {};
     inSpy = jest.spyOn(core, 'getInput');
     inSpy.mockImplementation(name => inputs[name]);
@@ -60,12 +66,14 @@ describe('setup-node', () => {
 
     // @actions/tool-cache
     findSpy = jest.spyOn(tc, 'find');
+    findAllVersionsSpy = jest.spyOn(tc, 'findAllVersions');
     dlSpy = jest.spyOn(tc, 'downloadTool');
     exSpy = jest.spyOn(tc, 'extractTar');
     cacheSpy = jest.spyOn(tc, 'cacheDir');
     getManifestSpy = jest.spyOn(tc, 'getManifestFromRepo');
-    getDistSpy = jest.spyOn(im, 'getVersionsFromDist');
-    parseNodeVersionSpy = jest.spyOn(im, 'parseNodeVersionFile');
+
+    // http-client
+    getJsonSpy = jest.spyOn(httpm.HttpClient.prototype, 'getJson');
 
     // io
     whichSpy = jest.spyOn(io, 'which');
@@ -83,7 +91,19 @@ describe('setup-node', () => {
     getManifestSpy.mockImplementation(
       () => <tc.IToolRelease[]>nodeTestManifest
     );
-    getDistSpy.mockImplementation(() => <im.INodeVersion>nodeTestDist);
+
+    getJsonSpy.mockImplementation(url => {
+      let res: any;
+      if (url.includes('/rc')) {
+        res = <INodeVersion>nodeTestDistRc;
+      } else if (url.includes('/nightly')) {
+        res = <INodeVersion>nodeTestDistNightly;
+      } else {
+        res = <INodeVersion>nodeTestDist;
+      }
+
+      return {result: res};
+    });
 
     // writes
     cnSpy = jest.spyOn(process.stdout, 'write');
@@ -92,11 +112,11 @@ describe('setup-node', () => {
     warningSpy = jest.spyOn(core, 'warning');
     cnSpy.mockImplementation(line => {
       // uncomment to debug
-      // process.stderr.write('write:' + line + '\n');
+      process.stderr.write('write:' + line + '\n');
     });
     logSpy.mockImplementation(line => {
-      // uncomment to debug
-      // process.stderr.write('log:' + line + '\n');
+      //   uncomment to debug
+      process.stderr.write('log:' + line + '\n');
     });
     dbgSpy.mockImplementation(msg => {
       // uncomment to see debug output
@@ -104,7 +124,7 @@ describe('setup-node', () => {
     });
     warningSpy.mockImplementation(msg => {
       // uncomment to debug
-      // process.stderr.write('log:' + line + '\n');
+      // process.stderr.write('log:' + msg + '\n');
     });
 
     // @actions/exec
@@ -126,22 +146,6 @@ describe('setup-node', () => {
   //--------------------------------------------------
   // Manifest find tests
   //--------------------------------------------------
-  it('can mock manifest versions', async () => {
-    let versions: tc.IToolRelease[] | null = await tc.getManifestFromRepo(
-      'actions',
-      'node-versions',
-      'mocktoken'
-    );
-    expect(versions).toBeDefined();
-    expect(versions?.length).toBe(7);
-  });
-
-  it('can mock dist versions', async () => {
-    let versions: im.INodeVersion[] = await im.getVersionsFromDist();
-    expect(versions).toBeDefined();
-    expect(versions?.length).toBe(23);
-  });
-
   it.each([
     ['12.16.2', 'darwin', '12.16.2', 'Erbium'],
     ['12', 'linux', '12.16.2', 'Erbium'],
@@ -249,6 +253,21 @@ describe('setup-node', () => {
 
     let expPath = path.join(toolPath, 'bin');
 
+    expect(getExecOutputSpy).toHaveBeenCalledWith(
+      'node',
+      ['--version'],
+      expect.anything()
+    );
+    expect(getExecOutputSpy).toHaveBeenCalledWith(
+      'npm',
+      ['--version'],
+      expect.anything()
+    );
+    expect(getExecOutputSpy).toHaveBeenCalledWith(
+      'yarn',
+      ['--version'],
+      expect.anything()
+    );
     expect(dlSpy).toHaveBeenCalled();
     expect(exSpy).toHaveBeenCalled();
     expect(logSpy).toHaveBeenCalledWith(
@@ -266,35 +285,32 @@ describe('setup-node', () => {
 
     // a version which is not in the manifest but is in node dist
     let versionSpec = '11.15.0';
-    let resolvedVersion = versionSpec;
 
     inputs['node-version'] = versionSpec;
     inputs['always-auth'] = false;
     inputs['token'] = 'faketoken';
 
-    let expectedUrl =
-      'https://github.com/actions/node-versions/releases/download/12.16.2-20200507.95/node-12.16.2-linux-x64.tar.gz';
-
     // ... but not in the local cache
     findSpy.mockImplementation(() => '');
 
     dlSpy.mockImplementation(async () => '/some/temp/path');
-    let toolPath = path.normalize('/cache/node/11.11.0/x64');
+    const toolPath = path.normalize('/cache/node/11.15.0/x64');
     exSpy.mockImplementation(async () => '/some/other/temp/path');
     cacheSpy.mockImplementation(async () => toolPath);
 
     await main.run();
 
-    let expPath = path.join(toolPath, 'bin');
+    const expPath = path.join(toolPath, 'bin');
 
-    expect(dlSpy).toHaveBeenCalled();
-    expect(exSpy).toHaveBeenCalled();
-    expect(logSpy).toHaveBeenCalledWith(
-      'Not found in manifest.  Falling back to download directly from Node'
-    );
+    expect(getManifestSpy).toHaveBeenCalled();
     expect(logSpy).toHaveBeenCalledWith(
       `Attempting to download ${versionSpec}...`
     );
+    expect(logSpy).toHaveBeenCalledWith(
+      'Not found in manifest. Falling back to download directly from Node'
+    );
+    expect(dlSpy).toHaveBeenCalled();
+    expect(exSpy).toHaveBeenCalled();
     expect(cnSpy).toHaveBeenCalledWith(`::add-path::${expPath}${osm.EOL}`);
   });
 
@@ -309,7 +325,7 @@ describe('setup-node', () => {
     await main.run();
 
     expect(logSpy).toHaveBeenCalledWith(
-      'Not found in manifest.  Falling back to download directly from Node'
+      'Not found in manifest. Falling back to download directly from Node'
     );
     expect(logSpy).toHaveBeenCalledWith(
       `Attempting to download ${versionSpec}...`
@@ -547,136 +563,6 @@ 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('cache on GHES', () => {
-    it('Should throw an error, because cache is not supported', async () => {
-      inputs['node-version'] = '12';
-      inputs['cache'] = 'npm';
-
-      inSpy.mockImplementation(name => inputs[name]);
-
-      let toolPath = path.normalize('/cache/node/12.16.1/x64');
-      findSpy.mockImplementation(() => toolPath);
-
-      // expect(logSpy).toHaveBeenCalledWith(`Found in cache @ ${toolPath}`);
-      process.env['GITHUB_SERVER_URL'] = 'https://www.test.com';
-      isCacheActionAvailable.mockImplementation(() => false);
-
-      await main.run();
-
-      expect(cnSpy).toHaveBeenCalledWith(
-        `::error::Cache action is only supported on GHES version >= 3.5. If you are on version >=3.5 Please check with GHES admin if Actions cache service is enabled or not.${osm.EOL}`
-      );
-    });
-
-    it('Should throw an internal error', async () => {
-      inputs['node-version'] = '12';
-      inputs['cache'] = 'npm';
-
-      inSpy.mockImplementation(name => inputs[name]);
-
-      let toolPath = path.normalize('/cache/node/12.16.1/x64');
-      findSpy.mockImplementation(() => toolPath);
-
-      // expect(logSpy).toHaveBeenCalledWith(`Found in cache @ ${toolPath}`);
-      process.env['GITHUB_SERVER_URL'] = '';
-      isCacheActionAvailable.mockImplementation(() => false);
-
-      await main.run();
-
-      expect(warningSpy).toHaveBeenCalledWith(
-        'The runner was not able to contact the cache service. Caching will be skipped'
-      );
-    });
-  });
-
   describe('LTS version', () => {
     beforeEach(() => {
       os.platform = 'linux';
@@ -892,36 +778,16 @@ describe('setup-node', () => {
         const toolPath = path.normalize(
           `/cache/node/${expectedVersion.version}/x64`
         );
-        findSpy.mockReturnValue(toolPath);
+        findSpy.mockImplementation(() => toolPath);
 
         // Act
         await main.run();
 
         // assert
-        expect(logSpy).toHaveBeenCalledWith(`Found in cache @ ${toolPath}`);
 
         expect(logSpy).toHaveBeenCalledWith('getting latest node version...');
+        expect(logSpy).toHaveBeenCalledWith(`Found in cache @ ${toolPath}`);
       }
     );
   });
 });
-
-describe('helper methods', () => {
-  describe('parseNodeVersionFile', () => {
-    each`
-      contents                                     | expected
-      ${'12'}                                      | ${'12'}
-      ${'12.3'}                                    | ${'12.3'}
-      ${'12.3.4'}                                  | ${'12.3.4'}
-      ${'v12.3.4'}                                 | ${'12.3.4'}
-      ${'lts/erbium'}                              | ${'lts/erbium'}
-      ${'lts/*'}                                   | ${'lts/*'}
-      ${'nodejs 12.3.4'}                           | ${'12.3.4'}
-      ${'ruby 2.3.4\nnodejs 12.3.4\npython 3.4.5'} | ${'12.3.4'}
-      ${''}                                        | ${''}
-      ${'unknown format'}                          | ${'unknown format'}
-    `.it('parses "$contents"', ({contents, expected}) => {
-      expect(im.parseNodeVersionFile(contents)).toBe(expected);
-    });
-  });
-});

__tests__/rc-installer.test.ts

@@ -0,0 +1,402 @@
+import * as core from '@actions/core';
+import * as io from '@actions/io';
+import * as tc from '@actions/tool-cache';
+import * as httpm from '@actions/http-client';
+import * as exec from '@actions/exec';
+import * as cache from '@actions/cache';
+import fs from 'fs';
+import cp from 'child_process';
+import osm from 'os';
+import path from 'path';
+import * as main from '../src/main';
+import * as auth from '../src/authutil';
+import {INodeVersion} from '../src/distributions/base-models';
+
+const nodeTestDist = require('./data/node-dist-index.json');
+const nodeTestDistNightly = require('./data/node-nightly-index.json');
+const nodeTestDistRc = require('./data/node-rc-index.json');
+const nodeV8CanaryTestDist = require('./data/v8-canary-dist-index.json');
+
+describe('setup-node', () => {
+  let inputs = {} as any;
+  let os = {} as any;
+
+  let inSpy: jest.SpyInstance;
+  let findSpy: jest.SpyInstance;
+  let findAllVersionsSpy: jest.SpyInstance;
+  let cnSpy: jest.SpyInstance;
+  let logSpy: jest.SpyInstance;
+  let warningSpy: jest.SpyInstance;
+  let platSpy: jest.SpyInstance;
+  let archSpy: jest.SpyInstance;
+  let dlSpy: jest.SpyInstance;
+  let exSpy: jest.SpyInstance;
+  let cacheSpy: jest.SpyInstance;
+  let dbgSpy: jest.SpyInstance;
+  let whichSpy: jest.SpyInstance;
+  let existsSpy: jest.SpyInstance;
+  let mkdirpSpy: jest.SpyInstance;
+  let execSpy: jest.SpyInstance;
+  let authSpy: jest.SpyInstance;
+  let isCacheActionAvailable: jest.SpyInstance;
+  let getExecOutputSpy: jest.SpyInstance;
+  let getJsonSpy: jest.SpyInstance;
+
+  beforeEach(() => {
+    // @actions/core
+    console.log('::stop-commands::stoptoken'); // Disable executing of runner commands when running tests in actions
+    process.env['GITHUB_PATH'] = ''; // Stub out ENV file functionality so we can verify it writes to standard out
+    process.env['GITHUB_OUTPUT'] = ''; // Stub out ENV file functionality so we can verify it writes to standard out
+    inputs = {};
+    inSpy = jest.spyOn(core, 'getInput');
+    inSpy.mockImplementation(name => inputs[name]);
+
+    // node
+    os = {};
+    platSpy = jest.spyOn(osm, 'platform');
+    platSpy.mockImplementation(() => os['platform']);
+    archSpy = jest.spyOn(osm, 'arch');
+    archSpy.mockImplementation(() => os['arch']);
+    execSpy = jest.spyOn(cp, 'execSync');
+
+    // @actions/tool-cache
+    findSpy = jest.spyOn(tc, 'find');
+    findAllVersionsSpy = jest.spyOn(tc, 'findAllVersions');
+    dlSpy = jest.spyOn(tc, 'downloadTool');
+    exSpy = jest.spyOn(tc, 'extractTar');
+    cacheSpy = jest.spyOn(tc, 'cacheDir');
+    // getDistSpy = jest.spyOn(im, 'getVersionsFromDist');
+
+    // http-client
+    getJsonSpy = jest.spyOn(httpm.HttpClient.prototype, 'getJson');
+
+    // io
+    whichSpy = jest.spyOn(io, 'which');
+    existsSpy = jest.spyOn(fs, 'existsSync');
+    mkdirpSpy = jest.spyOn(io, 'mkdirP');
+
+    // @actions/tool-cache
+    isCacheActionAvailable = jest.spyOn(cache, 'isFeatureAvailable');
+    isCacheActionAvailable.mockImplementation(() => false);
+
+    // disable authentication portion for installer tests
+    authSpy = jest.spyOn(auth, 'configAuthentication');
+    authSpy.mockImplementation(() => {});
+
+    getJsonSpy.mockImplementation(url => {
+      let res: any;
+      if (url.includes('/rc')) {
+        res = <INodeVersion>nodeTestDistRc;
+      } else if (url.includes('/nightly')) {
+        res = <INodeVersion>nodeTestDistNightly;
+      } else {
+        res = <INodeVersion>nodeTestDist;
+      }
+
+      return {result: res};
+    });
+
+    // writes
+    cnSpy = jest.spyOn(process.stdout, 'write');
+    logSpy = jest.spyOn(core, 'info');
+    dbgSpy = jest.spyOn(core, 'debug');
+    warningSpy = jest.spyOn(core, 'warning');
+    cnSpy.mockImplementation(line => {
+      // uncomment to debug
+      // process.stderr.write('write:' + line + '\n');
+    });
+    logSpy.mockImplementation(line => {
+      // uncomment to debug
+      // process.stderr.write('log:' + line + '\n');
+    });
+    dbgSpy.mockImplementation(msg => {
+      // uncomment to see debug output
+      // process.stderr.write(msg + '\n');
+    });
+    warningSpy.mockImplementation(msg => {
+      // uncomment to debug
+      // process.stderr.write('log:' + msg + '\n');
+    });
+
+    // @actions/exec
+    getExecOutputSpy = jest.spyOn(exec, 'getExecOutput');
+    getExecOutputSpy.mockImplementation(() => 'v16.15.0-rc.1');
+  });
+
+  afterEach(() => {
+    jest.resetAllMocks();
+    jest.clearAllMocks();
+    //jest.restoreAllMocks();
+  });
+
+  afterAll(async () => {
+    console.log('::stoptoken::'); // Re-enable executing of runner commands when running tests in actions
+    jest.restoreAllMocks();
+  }, 100000);
+
+  //--------------------------------------------------
+  // Found in cache tests
+  //--------------------------------------------------
+
+  it('finds version in cache with stable true', async () => {
+    inputs['node-version'] = '12.0.0-rc.1';
+    inputs.stable = 'true';
+
+    let toolPath = path.normalize('/cache/node/12.0.0-rc.1/x64');
+    findSpy.mockImplementation(() => toolPath);
+    await main.run();
+
+    expect(logSpy).toHaveBeenCalledWith(`Found in cache @ ${toolPath}`);
+  });
+
+  it('finds version in cache with stable not supplied', async () => {
+    inputs['node-version'] = '12.0.0-rc.1';
+
+    inSpy.mockImplementation(name => inputs[name]);
+
+    let toolPath = path.normalize('/cache/node/12.0.0-rc.1/x64');
+    findSpy.mockImplementation(() => toolPath);
+    await main.run();
+
+    expect(logSpy).toHaveBeenCalledWith(`Found in cache @ ${toolPath}`);
+  });
+
+  it('finds version in cache and adds it to the path', async () => {
+    inputs['node-version'] = '12.0.0-rc.1';
+
+    inSpy.mockImplementation(name => inputs[name]);
+
+    let toolPath = path.normalize('/cache/node/12.0.0-rc.1/x64');
+    findSpy.mockImplementation(() => toolPath);
+    await main.run();
+
+    let expPath = path.join(toolPath, 'bin');
+    expect(cnSpy).toHaveBeenCalledWith(`::add-path::${expPath}${osm.EOL}`);
+  });
+
+  it('handles unhandled find error and reports error', async () => {
+    let errMsg = 'unhandled error message';
+    inputs['node-version'] = '12.0.0-rc.1';
+
+    findSpy.mockImplementation(() => {
+      throw new Error(errMsg);
+    });
+
+    await main.run();
+
+    expect(cnSpy).toHaveBeenCalledWith('::error::' + errMsg + osm.EOL);
+  });
+
+  it('falls back to a version from node dist', async () => {
+    os.platform = 'linux';
+    os.arch = 'x64';
+
+    let versionSpec = '13.0.0-rc.0';
+
+    inputs['node-version'] = versionSpec;
+    inputs['always-auth'] = false;
+    inputs['token'] = 'faketoken';
+
+    // ... but not in the local cache
+    findSpy.mockImplementation(() => '');
+
+    dlSpy.mockImplementation(async () => '/some/temp/path');
+    let toolPath = path.normalize('/cache/node/13.0.0-rc.0/x64');
+    exSpy.mockImplementation(async () => '/some/other/temp/path');
+    cacheSpy.mockImplementation(async () => toolPath);
+
+    await main.run();
+
+    let expPath = path.join(toolPath, 'bin');
+
+    expect(dlSpy).toHaveBeenCalled();
+    expect(exSpy).toHaveBeenCalled();
+    expect(logSpy).toHaveBeenCalledWith('Extracting ...');
+    expect(logSpy).toHaveBeenCalledWith('Done');
+    expect(cnSpy).toHaveBeenCalledWith(`::add-path::${expPath}${osm.EOL}`);
+  });
+
+  it('does not find a version that does not exist', async () => {
+    os.platform = 'linux';
+    os.arch = 'x64';
+
+    let versionSpec = '9.99.9-rc.1';
+    inputs['node-version'] = versionSpec;
+
+    findSpy.mockImplementation(() => '');
+    await main.run();
+
+    expect(cnSpy).toHaveBeenCalledWith(
+      `::error::Unable to find Node version '${versionSpec}' for platform ${os.platform} and architecture ${os.arch}.${osm.EOL}`
+    );
+  });
+
+  it('reports a failed download', async () => {
+    let errMsg = 'unhandled download message';
+    os.platform = 'linux';
+    os.arch = 'x64';
+
+    let versionSpec = '14.7.0-rc.1';
+
+    inputs['node-version'] = versionSpec;
+    inputs['always-auth'] = false;
+    inputs['token'] = 'faketoken';
+
+    findSpy.mockImplementation(() => '');
+    findAllVersionsSpy.mockImplementation(() => []);
+    dlSpy.mockImplementation(() => {
+      throw new Error(errMsg);
+    });
+    await main.run();
+
+    expect(cnSpy).toHaveBeenCalledWith(`::error::${errMsg}${osm.EOL}`);
+  });
+
+  it('acquires specified architecture of node', async () => {
+    for (const {arch, version, osSpec} of [
+      {arch: 'x86', version: '13.4.0-rc.0', osSpec: 'win32'},
+      {arch: 'x86', version: '14.15.5-rc.0', osSpec: 'win32'}
+    ]) {
+      os.platform = osSpec;
+      os.arch = arch;
+      const fileExtension = os.platform === 'win32' ? '7z' : 'tar.gz';
+      const platform = {
+        linux: 'linux',
+        darwin: 'darwin',
+        win32: 'win'
+      }[os.platform];
+
+      inputs['node-version'] = version;
+      inputs['architecture'] = arch;
+      inputs['always-auth'] = false;
+      inputs['token'] = 'faketoken';
+
+      let expectedUrl = `https://nodejs.org/download/rc/v${version}/node-v${version}-${platform}-${arch}.${fileExtension}`;
+
+      // ... but not in the local cache
+      findSpy.mockImplementation(() => '');
+      findAllVersionsSpy.mockImplementation(() => []);
+
+      dlSpy.mockImplementation(async () => '/some/temp/path');
+      let toolPath = path.normalize(`/cache/node/${version}/${arch}`);
+      exSpy.mockImplementation(async () => '/some/other/temp/path');
+      cacheSpy.mockImplementation(async () => toolPath);
+
+      await main.run();
+      expect(dlSpy).toHaveBeenCalled();
+      expect(logSpy).toHaveBeenCalledWith(
+        `Acquiring ${version} - ${arch} from ${expectedUrl}`
+      );
+    }
+  }, 100000);
+
+  describe('rc versions', () => {
+    it.each([
+      [
+        '13.10.1-rc.0',
+        '13.10.1-rc.0',
+        'https://nodejs.org/download/rc/v13.10.1-rc.0/node-v13.10.1-rc.0-linux-x64.tar.gz'
+      ],
+      [
+        '14.15.5-rc.1',
+        '14.15.5-rc.1',
+        'https://nodejs.org/download/rc/v14.15.5-rc.1/node-v14.15.5-rc.1-linux-x64.tar.gz'
+      ],
+      [
+        '16.17.0-rc.1',
+        '16.17.0-rc.1',
+        'https://nodejs.org/download/rc/v16.17.0-rc.1/node-v16.17.0-rc.1-linux-x64.tar.gz'
+      ],
+      [
+        '17.0.0-rc.1',
+        '17.0.0-rc.1',
+        'https://nodejs.org/download/rc/v17.0.0-rc.1/node-v17.0.0-rc.1-linux-x64.tar.gz'
+      ],
+      [
+        '19.0.0-rc.2',
+        '19.0.0-rc.2',
+        'https://nodejs.org/download/rc/v19.0.0-rc.2/node-v19.0.0-rc.2-linux-x64.tar.gz'
+      ]
+    ])(
+      'finds the versions in the index.json and installs it',
+      async (input, expectedVersion, expectedUrl) => {
+        const toolPath = path.normalize(`/cache/node/${expectedVersion}/x64`);
+
+        findSpy.mockImplementation(() => '');
+        findAllVersionsSpy.mockImplementation(() => []);
+        dlSpy.mockImplementation(async () => '/some/temp/path');
+        exSpy.mockImplementation(async () => '/some/other/temp/path');
+        cacheSpy.mockImplementation(async () => toolPath);
+
+        inputs['node-version'] = input;
+        os['arch'] = 'x64';
+        os['platform'] = 'linux';
+        // act
+        await main.run();
+
+        // assert
+        expect(logSpy).toHaveBeenCalledWith('Extracting ...');
+        expect(logSpy).toHaveBeenCalledWith('Adding to the cache ...');
+        expect(cnSpy).toHaveBeenCalledWith(
+          `::add-path::${path.join(toolPath, 'bin')}${osm.EOL}`
+        );
+      }
+    );
+
+    it.each([
+      ['13.10.1-rc.0', '13.10.1-rc.0'],
+      ['14.15.5-rc.1', '14.15.5-rc.1'],
+      ['16.17.0-rc.1', '16.17.0-rc.1'],
+      ['17.0.0-rc.1', '17.0.0-rc.1']
+    ])(
+      'finds the %s version in the hostedToolcache',
+      async (input, expectedVersion) => {
+        const toolPath = path.normalize(`/cache/node/${expectedVersion}/x64`);
+        findSpy.mockImplementation((_, version) =>
+          path.normalize(`/cache/node/${version}/x64`)
+        );
+        findAllVersionsSpy.mockReturnValue([
+          '2.2.2-rc.2',
+          '1.1.1-rc.1',
+          '99.1.1',
+          expectedVersion,
+          '88.1.1',
+          '3.3.3-rc.3'
+        ]);
+
+        inputs['node-version'] = input;
+        os['arch'] = 'x64';
+        os['platform'] = 'linux';
+
+        // act
+        await main.run();
+
+        // assert
+        expect(logSpy).toHaveBeenCalledWith(`Found in cache @ ${toolPath}`);
+        expect(cnSpy).toHaveBeenCalledWith(
+          `::add-path::${path.join(toolPath, 'bin')}${osm.EOL}`
+        );
+      }
+    );
+
+    it('throws an error if version is not found', async () => {
+      const versionSpec = '19.0.0-rc.3';
+
+      findSpy.mockImplementation(() => '');
+      findAllVersionsSpy.mockImplementation(() => []);
+      dlSpy.mockImplementation(async () => '/some/temp/path');
+      exSpy.mockImplementation(async () => '/some/other/temp/path');
+
+      inputs['node-version'] = versionSpec;
+      os['arch'] = 'x64';
+      os['platform'] = 'linux';
+      // act
+      await main.run();
+
+      // assert
+      expect(cnSpy).toHaveBeenCalledWith(
+        `::error::Unable to find Node version '${versionSpec}' for platform ${os.platform} and architecture ${os.arch}.${osm.EOL}`
+      );
+    });
+  });
+});

action.yml

@@ -19,8 +19,8 @@ inputs:
   scope:
     description: 'Optional scope for authenticating against scoped registries. Will fall back to the repository owner when using the GitHub Packages registry (https://npm.pkg.github.com/).'
   token:
-    description: Used to pull node distributions from node-versions.  Since there's a default, this is typically not supplied by the user.
-    default: ${{ github.token }}
+    description: Used to pull node distributions from node-versions. Since there's a default, this is typically not supplied by the user. When running this action on github.com, the default value is sufficient. When running on GHES, you can pass a personal access token for github.com if you are experiencing rate limiting.
+    default: ${{ github.server_url == 'https://github.com' && github.token || '' }}
   cache:
     description: 'Used to specify a package manager for caching in the default directory. Supported values: npm, yarn, pnpm.'
   cache-dependency-path:

docs/advanced-usage.md

@@ -48,7 +48,7 @@ steps:
 - uses: actions/checkout@v3
 - uses: actions/setup-node@v3
   with:
-    node-version: '14'
+    node-version: '16'
     check-latest: true
 - run: npm ci
 - run: npm test
@@ -56,8 +56,9 @@ steps:
 
 ## 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`, `.node-version` or `.tool-versions`. 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 `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`, `.node-version`, `.tool-versions`, or `package.json`. 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
@@ -70,9 +71,22 @@ steps:
 - run: npm test
 ```
 
+When using the `package.json` input, the action will look for `volta.node` first. If `volta.node` isn't defined, then it will look for `engines.node`.
+
+```json
+{
+  "engines": {
+    "node": ">=16.0.0"
+  },
+  "volta": {
+    "node": "16.0.0"
+  }
+}
+```
+
 ## 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).
+You can use any of the [supported operating systems](https://docs.github.com/en/actions/using-github-hosted-runners/about-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).
 
 When using `architecture`, `node-version` must be provided as well.
 ```yaml
@@ -90,6 +104,129 @@ jobs:
       - run: npm test
 ```
 
+## V8 Canary versions
+
+You can specify a nightly version to download it from https://nodejs.org/download/v8-canary.
+
+### Install v8 canary build for specific node version
+
+```yaml
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    name: Node sample
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
+        with:
+          node-version: '20.0.0-v8-canary' # it will install the latest v8 canary release for node 20.0.0
+      - run: npm ci
+      - run: npm test
+```
+### Install v8 canary build for major node version
+
+```yaml
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    name: Node sample
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
+        with:
+          node-version: '20-v8-canary' # it will install the latest v8 canary release for node 20
+      - run: npm ci
+      - run: npm test
+```
+
+### Install the exact v8 canary version
+
+```yaml
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    name: Node sample
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
+        with:
+          node-version: 'v20.1.1-v8-canary20221103f7e2421e91'
+      - run: npm ci
+      - run: npm test
+```
+
+## Nightly versions
+
+You can specify a nightly version to download it from https://nodejs.org/download/nightly. 
+
+### Install the nightly build for a major version
+
+```yaml
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    name: Node sample
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
+        with:
+          node-version: '16-nightly' # it will install the latest nightly release for node 16
+      - run: npm ci
+      - run: npm test
+```
+
+### Install the nightly build for a specific version
+
+```yaml
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    name: Node sample
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
+        with:
+          node-version: '16.0.0-nightly' # it will install the latest nightly release for node 16.0.0
+      - run: npm ci
+      - run: npm test
+```
+
+### Install an exact nightly version
+
+```yaml
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    name: Node sample
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
+        with:
+          node-version: '16.0.0-nightly20210420a0261d231c'
+      - run: npm ci
+      - run: npm test
+```
+
+## RC versions
+
+You can use specify a rc version to download it from https://nodejs.org/download/rc.
+
+```yaml
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    name: Node sample
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
+        with:
+          node-version: '16.0.0-rc.1'
+      - run: npm ci
+      - run: npm test
+```
+
+**Note:** Unlike nightly versions, which support version range specifiers, you must specify the exact version for a release candidate: `16.0.0-rc.1`.
+
 ## Caching packages data
 The action follows [actions/cache](https://github.com/actions/cache/blob/main/examples.md#node---npm) guidelines, and caches global cache on the machine instead of `node_modules`, so cache can be reused between different Node.js versions.
 
@@ -247,5 +384,28 @@ steps:
 # `npm rebuild` will run all those post-install scripts for us.
 - run: npm rebuild && npm run prepare --if-present
 ```
+### Yarn2 configuration
+Yarn2 ignores both .npmrc and .yarnrc files created by the action, so before installing dependencies from the private repo it is necessary either to create or to modify existing yarnrc.yml file with `yarn config set` commands.
 
+Below you can find a sample "Setup .yarnrc.yml" step, that is going to allow you to configure a private GitHub registry for 'my-org' organisation.
+
+```yaml
+steps:
+- uses: actions/checkout@v3
+- uses: actions/setup-node@v3
+  with:
+    node-version: '14.x'
+- name: Setup .yarnrc.yml
+  run: |
+    yarn config set npmScopes.my-org.npmRegistryServer "https://npm.pkg.github.com"
+    yarn config set npmScopes.my-org.npmAlwaysAuth true
+    yarn config set npmScopes.my-org.npmAuthToken $NPM_AUTH_TOKEN
+  env:
+    NPM_AUTH_TOKEN: ${{ secrets.YARN_TOKEN }}
+- name: Install dependencies
+  run: yarn install --immutable
+```
 NOTE: As per https://github.com/actions/setup-node/issues/49 you cannot use `secrets.GITHUB_TOKEN` to access private GitHub Packages within the same organisation but in a different repository.
+
+### always-auth input
+The always-auth input sets `always-auth=true` in .npmrc file. With this option set [npm](https://docs.npmjs.com/cli/v6/using-npm/config#always-auth)/yarn sends the authentication credentials when making a request to the registries.

docs/contributors.md

@@ -1,22 +1,115 @@
 # Contributors
 
-### Checkin
+Thank you for contributing!
 
-- Do checkin source (src)
-- Do checkin build output (lib)
-- Do checkin runtime node_modules
-- Do not checkin devDependency node_modules (husky can help see below)
+We have prepared a short guide so that the process of making your contribution is as simple and clear as possible. Please check it out before you contribute!
 
-### devDependencies
+## How can I contribute...
 
-In order to handle correctly checking in node_modules without devDependencies, we run [Husky](https://github.com/typicode/husky) before each commit.
-This step ensures that formatting and checkin rules are followed and that devDependencies are excluded. To make sure Husky runs correctly, please use the following workflow:
+* [Contribute Documentation:green_book:](#contribute-documentation)
 
-```
-npm install                                 # installs all devDependencies including Husky
-git add abc.ext                             # Add the files you've changed. This should include files in src, lib, and node_modules (see above)
-git commit -m "Informative commit message"  # Commit. This will run Husky
-```
+* [Contribute Code :computer:](#contribute-code)
 
-During the commit step, Husky will take care of formatting all files with [Prettier](https://github.com/prettier/prettier) as well as pruning out devDependencies using `npm prune --production`.
-It will also make sure these changes are appropriately included in your commit (no further work is needed)
+* [Provide Support on Issues:pencil:](#provide-support-on-issues)
+
+* [Review Pull Requests:mag:](#review-pull-requests)
+
+## Contribute documentation
+
+Documentation is a super important, critical part of this project. Docs are how we keep track of what we're doing, how, and why. It's how we stay on the same page about our policies and how we tell others everything they need to be able to use this project or contribute to it. 
+
+Documentation contributions of any size are welcome! Feel free to contribute even if you're just rewording a sentence to be more clear, or fixing a spelling mistake!
+
+**How to contribute:**
+
+Pull requests are the easiest way to contribute changes to git repos at GitHub. They are the preferred contribution method, as they offer a convenient way of commenting and amending the proposed changes.
+
+- Please check that no one else has already created a pull request with these or similar changes
+- Use a "feature branch" for your changes. That separates the changes in the pull request from your other changes and makes it easy to edit/amend commits in the pull request 
+- Make sure your changes are formatted properly and consistently with the rest of the documentation
+- Re-read what you wrote, and run a spellchecker on it to make sure you didn't miss anything
+- If your pull request is connected to an open issue, please, leave a link to this issue in the `Related issue:` section
+- If you later need to add new commits to the pull request, you can simply commit the changes to the local branch and then push them. The pull request gets automatically updated
+
+**Once you've filed the pull request:**
+
+- Maintainers will review your pull request
+- If a maintainer requests changes, first of all, try to think about this request critically and only after that implement and request another review
+- If your PR gets accepted, it will soon be merged into the main branch. But your contribution will take effect only after the release of a new version of the action and updating the major tag
+> Sometimes maintainers reject pull requests and that's ok! Usually, along with rejection, we supply the reason for it. Nonetheless, we still really appreciate you taking the time to do it, and we don't take that lightly :heart:
+
+## Contribute code
+
+We like code commits a lot! They're super handy, and they keep the project going and doing the work it needs to do to be useful to others.
+
+Code contributions of just about any size are acceptable!
+
+The main difference between code contributions and documentation contributions is that contributing code requires the inclusion of relevant tests for the code being added or changed. Contributions without accompanying tests will be held off until a test is added unless the maintainers consider the specific tests to be either impossible or way too much of a burden for such a contribution.
+
+**How to contribute:**
+
+Pull requests are the easiest way to contribute changes to git repos at GitHub. They are the preferred contribution method, as they offer a convenient way of commenting and amending the proposed changes.
+
+- Please check that no one else has already created a pull request with these or similar changes
+- Use a "feature branch" for your changes. That separates the changes in the pull request from your other changes and makes it easy to edit/amend commits in the pull request
+-  **Run `pre-checkin` script to format, build and test changes**
+- Make sure your changes are well formatted and that all tests are passing
+- If your pull request is connected to an open issue, please, leave a link to this issue in the `Related issue:` section
+- If you later need to add new commits to the pull request, you can simply commit the changes to the local branch and then push them. The pull request gets automatically updated
+
+**Learn more about how to work with the repository:**
+
+- To implement new features or fix bugs, you need to make changes to the `.ts` files, which are located in the `src` folder
+- To comply with the code style, **you need to run the `format` script**
+- To transpile source code to `javascript` we use [NCC](https://github.com/vercel/ncc). **It is very important to run the `build` script after making changes**, otherwise your changes will not get into the final `javascript` build
+- You can also start formatting, building code, and testing with a single `pre-checkin` command
+
+**Learn more about how to implement tests:**
+
+Adding or changing tests is an integral part of making a change to the code. 
+Unit tests are in the `__tests__` folder, and end-to-end tests are in the `workflows` folder, particularly in the [versions.yml](https://github.com/actions/setup-node/blob/main/.github/workflows/versions.yml) and [e2e-cache.yml](https://github.com/actions/setup-node/blob/main/.github/workflows/e2e-cache.yml) files.
+
+- The contributor can add various types of tests (like unit tests or end-to-end tests), which, in his opinion, will be necessary and sufficient for testing new or changed functionality
+- Tests should cover a successful execution, as well as some edge cases and possible errors
+- As already mentioned, pull requests without tests will be considered more carefully by maintainers. If you are sure that in this situation the tests are not needed or cannot be implemented with a commensurate effort - please add this clarification message to your pull request
+
+**Once you've filed the pull request:**
+
+- CI will start automatically with some checks. Wait until the end of the execution and make sure that all checks passed successfully. If some checks fail, you can open them one by one, try to find the reason for failing and make changes to your code to resolve the problem
+- Maintainers will review your pull request
+- If a maintainer requests changes, first of all, try to think about his request critically and only after that implement and request another review
+- If your PR gets accepted, it will soon be merged into the main branch. But your contribution will take effect only after the release of a new version of the action and updating the major tag
+> Sometimes maintainers reject pull requests and that's ok! Usually, along with rejection, we supply the reason for it. Nonetheless, we still really appreciate you taking the time to do it, and we don't take that lightly :heart:
+
+## Provide support on issues
+
+Helping out other users with their questions is an awesome way of contributing to any community. It's not uncommon for most of the issues on open source projects to be support-related questions by users trying to understand something they ran into or find their way around a known bug.
+
+**To help other folks out with their questions:**
+
+- Go to the [issue tracker](https://github.com/actions/setup-node/issues)
+- Read through the list until you find something that you're familiar enough with to answer to
+- Respond to the issue with whatever details are needed to clarify the question, or get more details about what's going on
+- Once the discussion wraps up and things are clarified, ask the original issue filer (or a maintainer) to close it for you
+ 
+*Some notes on picking up support issues:*
+
+- Avoid responding to issues you don't know you can answer accurately
+- Try to refer to past issues with accepted answers as much as possible. Link to them from your replies
+- Be kind and patient with users. Often, folks who have run into confusing things might be upset or impatient. This is natural. If you feel uncomfortable in conversation with them, it's better to stay away or withdraw from the issue.
+
+ > If some user is violating our code of conduct [standards](https://github.com/actions/setup-node/blob/main/CODE_OF_CONDUCT.md#our-standards), refer to the [Enforcement](https://github.com/actions/setup-node/blob/main/CODE_OF_CONDUCT.md#enforcement) section of the Code of Conduct to resolve the conflict
+ 
+
+## Review pull requests
+ 
+
+Another great way to contribute is to review pull request. Please, be extra kind: people who submit code/doc contributions are putting themselves in a pretty vulnerable position, and have put time and care into what they've done (even if that's not obvious to you!) Please, always respond with respect, and be understanding, but don't feel like you need to sacrifice your standards for their sake, either.
+ 
+**How to review:**
+
+- Go to the [pull requests](https://github.com/actions/setup-node/pulls)
+- Make sure you're familiar with the code or documentation is updated, unless it's a minor change (spellchecking, minor formatting, etc.)
+- Review changes using the GitHub functionality. You can ask a clarifying question, point out an error or suggest an alternative. 
+> Note: You may ask for minor changes - "nitpicks", but consider whether they are real blockers to merging or not
+- Submit your review, which may include comments, an approval, or a changes request

package-lock.json

@@ -1,16 +1,16 @@
 {
   "name": "setup-node",
-  "version": "3.1.1",
+  "version": "3.4.1",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "setup-node",
-      "version": "3.1.1",
+      "version": "3.4.1",
       "license": "MIT",
       "dependencies": {
-        "@actions/cache": "^3.0.0",
-        "@actions/core": "^1.6.0",
+        "@actions/cache": "^3.0.4",
+        "@actions/core": "^1.10.0",
         "@actions/exec": "^1.1.0",
         "@actions/github": "^1.1.0",
         "@actions/glob": "^0.2.0",
@@ -28,13 +28,13 @@
         "jest-circus": "^27.2.5",
         "prettier": "^1.19.1",
         "ts-jest": "^27.0.5",
-        "typescript": "^3.8.3"
+        "typescript": "^4.2.3"
       }
     },
     "node_modules/@actions/cache": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/@actions/cache/-/cache-3.0.0.tgz",
-      "integrity": "sha512-GL9CT1Fnu+pqs8TTB621q8Xa8Cilw2n9MwvbgMedetH7L1q2n6jY61gzbwGbKgtVbp3gVJ12aNMi4osSGXx3KQ==",
+      "version": "3.0.4",
+      "resolved": "https://registry.npmjs.org/@actions/cache/-/cache-3.0.4.tgz",
+      "integrity": "sha512-9RwVL8/ISJoYWFNH1wR/C26E+M3HDkGPWmbFJMMCKwTkjbNZJreMT4XaR/EB1bheIvN4PREQxEQQVJ18IPnf/Q==",
       "dependencies": {
         "@actions/core": "^1.2.6",
         "@actions/exec": "^1.0.1",
@@ -74,11 +74,28 @@
       }
     },
     "node_modules/@actions/core": {
-      "version": "1.6.0",
-      "resolved": "https://registry.npmjs.org/@actions/core/-/core-1.6.0.tgz",
-      "integrity": "sha512-NB1UAZomZlCV/LmJqkLhNTqtKfFXJZAUPcfl/zqG7EfsQdeUJtaWO98SGbuQ3pydJ3fHl2CvI/51OKYlCYYcaw==",
+      "version": "1.10.0",
+      "resolved": "https://registry.npmjs.org/@actions/core/-/core-1.10.0.tgz",
+      "integrity": "sha512-2aZDDa3zrrZbP5ZYg159sNoLRb61nQ7awl5pSvIq5Qpj81vwDzdMRKzkWJGJuwVvWpvZKx7vspJALyvaaIQyug==",
       "dependencies": {
-        "@actions/http-client": "^1.0.11"
+        "@actions/http-client": "^2.0.1",
+        "uuid": "^8.3.2"
+      }
+    },
+    "node_modules/@actions/core/node_modules/@actions/http-client": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/@actions/http-client/-/http-client-2.0.1.tgz",
+      "integrity": "sha512-PIXiMVtz6VvyaRsGY268qvj57hXQEpsYogYOu2nrQhlf+XCGmZstmuZBbAybUl1nQGnvS1k1eEsQ69ZoD7xlSw==",
+      "dependencies": {
+        "tunnel": "^0.0.6"
+      }
+    },
+    "node_modules/@actions/core/node_modules/uuid": {
+      "version": "8.3.2",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz",
+      "integrity": "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg==",
+      "bin": {
+        "uuid": "dist/bin/uuid"
       }
     },
     "node_modules/@actions/exec": {
@@ -3762,13 +3779,10 @@
       }
     },
     "node_modules/json5": {
-      "version": "2.2.0",
-      "resolved": "https://registry.npmjs.org/json5/-/json5-2.2.0.tgz",
-      "integrity": "sha512-f+8cldu7X/y7RAJurMEJmdoKXGB/X550w2Nr3tTbezL6RwEE/iMcm+tZnXeoZtKuOq6ft8+CqzEkrIgx1fPoQA==",
+      "version": "2.2.2",
+      "resolved": "https://registry.npmjs.org/json5/-/json5-2.2.2.tgz",
+      "integrity": "sha512-46Tk9JiOL2z7ytNQWFLpj99RZkVgeHf87yGQKsIkaPz1qSH9UczKH1rO7K3wgRselo0tYMUNfecYpm/p1vC7tQ==",
       "dev": true,
-      "dependencies": {
-        "minimist": "^1.2.5"
-      },
       "bin": {
         "json5": "lib/cli.js"
       },
@@ -3938,9 +3952,9 @@
       }
     },
     "node_modules/minimatch": {
-      "version": "3.0.4",
-      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
-      "integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==",
+      "version": "3.1.2",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.2.tgz",
+      "integrity": "sha512-J7p63hRiAjw1NDEww1W7i37+ByIrOWO5XQQAzZ3VOcL0PNybwpfmV/N05zFAzwQ9USyEcX6t3UO+K5aqBQOIHw==",
       "dependencies": {
         "brace-expansion": "^1.1.7"
       },
@@ -3948,12 +3962,6 @@
         "node": "*"
       }
     },
-    "node_modules/minimist": {
-      "version": "1.2.6",
-      "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.6.tgz",
-      "integrity": "sha512-Jsjnk4bw3YJqYzbdyBiNsPWHPfO++UGG749Cxs6peCu5Xg4nrena6OVxOYxrQTqww0Jmwt+Ref8rggumkTLz9Q==",
-      "dev": true
-    },
     "node_modules/ms": {
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
@@ -4796,9 +4804,9 @@
       }
     },
     "node_modules/typescript": {
-      "version": "3.8.3",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.8.3.tgz",
-      "integrity": "sha512-MYlEfn5VrLNsgudQTVJeNaQFUAI7DkhnOjdpAp4T+ku1TfQClewlbSuTVHiA+8skNBgaf02TL/kLOvig4y3G8w==",
+      "version": "4.2.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.2.3.tgz",
+      "integrity": "sha512-qOcYwxaByStAWrBf4x0fibwZvMRG+r4cQoTjbPtUlrWjBHbmCAww1i448U0GJ+3cNNEtebDteo/cHOR3xJ4wEw==",
       "dev": true,
       "bin": {
         "tsc": "bin/tsc",
@@ -5087,9 +5095,9 @@
   },
   "dependencies": {
     "@actions/cache": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/@actions/cache/-/cache-3.0.0.tgz",
-      "integrity": "sha512-GL9CT1Fnu+pqs8TTB621q8Xa8Cilw2n9MwvbgMedetH7L1q2n6jY61gzbwGbKgtVbp3gVJ12aNMi4osSGXx3KQ==",
+      "version": "3.0.4",
+      "resolved": "https://registry.npmjs.org/@actions/cache/-/cache-3.0.4.tgz",
+      "integrity": "sha512-9RwVL8/ISJoYWFNH1wR/C26E+M3HDkGPWmbFJMMCKwTkjbNZJreMT4XaR/EB1bheIvN4PREQxEQQVJ18IPnf/Q==",
       "requires": {
         "@actions/core": "^1.2.6",
         "@actions/exec": "^1.0.1",
@@ -5127,11 +5135,27 @@
       }
     },
     "@actions/core": {
-      "version": "1.6.0",
-      "resolved": "https://registry.npmjs.org/@actions/core/-/core-1.6.0.tgz",
-      "integrity": "sha512-NB1UAZomZlCV/LmJqkLhNTqtKfFXJZAUPcfl/zqG7EfsQdeUJtaWO98SGbuQ3pydJ3fHl2CvI/51OKYlCYYcaw==",
+      "version": "1.10.0",
+      "resolved": "https://registry.npmjs.org/@actions/core/-/core-1.10.0.tgz",
+      "integrity": "sha512-2aZDDa3zrrZbP5ZYg159sNoLRb61nQ7awl5pSvIq5Qpj81vwDzdMRKzkWJGJuwVvWpvZKx7vspJALyvaaIQyug==",
       "requires": {
-        "@actions/http-client": "^1.0.11"
+        "@actions/http-client": "^2.0.1",
+        "uuid": "^8.3.2"
+      },
+      "dependencies": {
+        "@actions/http-client": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/@actions/http-client/-/http-client-2.0.1.tgz",
+          "integrity": "sha512-PIXiMVtz6VvyaRsGY268qvj57hXQEpsYogYOu2nrQhlf+XCGmZstmuZBbAybUl1nQGnvS1k1eEsQ69ZoD7xlSw==",
+          "requires": {
+            "tunnel": "^0.0.6"
+          }
+        },
+        "uuid": {
+          "version": "8.3.2",
+          "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz",
+          "integrity": "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg=="
+        }
       }
     },
     "@actions/exec": {
@@ -8055,13 +8079,10 @@
       "dev": true
     },
     "json5": {
-      "version": "2.2.0",
-      "resolved": "https://registry.npmjs.org/json5/-/json5-2.2.0.tgz",
-      "integrity": "sha512-f+8cldu7X/y7RAJurMEJmdoKXGB/X550w2Nr3tTbezL6RwEE/iMcm+tZnXeoZtKuOq6ft8+CqzEkrIgx1fPoQA==",
-      "dev": true,
-      "requires": {
-        "minimist": "^1.2.5"
-      }
+      "version": "2.2.2",
+      "resolved": "https://registry.npmjs.org/json5/-/json5-2.2.2.tgz",
+      "integrity": "sha512-46Tk9JiOL2z7ytNQWFLpj99RZkVgeHf87yGQKsIkaPz1qSH9UczKH1rO7K3wgRselo0tYMUNfecYpm/p1vC7tQ==",
+      "dev": true
     },
     "kleur": {
       "version": "3.0.3",
@@ -8189,19 +8210,13 @@
       "dev": true
     },
     "minimatch": {
-      "version": "3.0.4",
-      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
-      "integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==",
+      "version": "3.1.2",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.2.tgz",
+      "integrity": "sha512-J7p63hRiAjw1NDEww1W7i37+ByIrOWO5XQQAzZ3VOcL0PNybwpfmV/N05zFAzwQ9USyEcX6t3UO+K5aqBQOIHw==",
       "requires": {
         "brace-expansion": "^1.1.7"
       }
     },
-    "minimist": {
-      "version": "1.2.6",
-      "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.6.tgz",
-      "integrity": "sha512-Jsjnk4bw3YJqYzbdyBiNsPWHPfO++UGG749Cxs6peCu5Xg4nrena6OVxOYxrQTqww0Jmwt+Ref8rggumkTLz9Q==",
-      "dev": true
-    },
     "ms": {
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
@@ -8828,9 +8843,9 @@
       }
     },
     "typescript": {
-      "version": "3.8.3",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.8.3.tgz",
-      "integrity": "sha512-MYlEfn5VrLNsgudQTVJeNaQFUAI7DkhnOjdpAp4T+ku1TfQClewlbSuTVHiA+8skNBgaf02TL/kLOvig4y3G8w==",
+      "version": "4.2.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.2.3.tgz",
+      "integrity": "sha512-qOcYwxaByStAWrBf4x0fibwZvMRG+r4cQoTjbPtUlrWjBHbmCAww1i448U0GJ+3cNNEtebDteo/cHOR3xJ4wEw==",
       "dev": true
     },
     "universal-user-agent": {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "setup-node",
-  "version": "3.1.1",
+  "version": "3.4.1",
   "private": true,
   "description": "setup node action",
   "main": "lib/setup-node.js",
@@ -8,6 +8,7 @@
     "build": "ncc build -o dist/setup src/setup-node.ts && ncc build -o dist/cache-save src/cache-save.ts",
     "format": "prettier --write **/*.ts",
     "format-check": "prettier --check **/*.ts",
+    "lint": "echo \"Fake command that does nothing. It is used in reusable workflows\"",
     "test": "jest --coverage",
     "pre-checkin": "npm run format && npm run build && npm test"
   },
@@ -23,8 +24,8 @@
   "author": "GitHub",
   "license": "MIT",
   "dependencies": {
-    "@actions/cache": "^3.0.0",
-    "@actions/core": "^1.6.0",
+    "@actions/cache": "^3.0.4",
+    "@actions/core": "^1.10.0",
     "@actions/exec": "^1.1.0",
     "@actions/github": "^1.1.0",
     "@actions/glob": "^0.2.0",
@@ -42,6 +43,6 @@
     "jest-circus": "^27.2.5",
     "prettier": "^1.19.1",
     "ts-jest": "^27.0.5",
-    "typescript": "^3.8.3"
+    "typescript": "^4.2.3"
   }
 }

src/authutil.ts

@@ -29,7 +29,7 @@ function writeRegistryToFile(
     scope = '@' + scope;
   }
   if (scope) {
-    scope = scope.toLowerCase();
+    scope = scope.toLowerCase() + ':';
   }
 
   core.debug(`Setting auth in ${fileLocation}`);
@@ -38,7 +38,7 @@ function writeRegistryToFile(
     const curContents: string = fs.readFileSync(fileLocation, 'utf8');
     curContents.split(os.EOL).forEach((line: string) => {
       // Add current contents unless they are setting the registry
-      if (!line.toLowerCase().startsWith('registry')) {
+      if (!line.toLowerCase().startsWith(`${scope}registry`)) {
         newContents += line + os.EOL;
       }
     });
@@ -46,9 +46,7 @@ function writeRegistryToFile(
   // Remove http: or https: from front of registry.
   const authString: string =
     registryUrl.replace(/(^\w+:|^)/, '') + ':_authToken=${NODE_AUTH_TOKEN}';
-  const registryString: string = scope
-    ? `${scope}:registry=${registryUrl}`
-    : `registry=${registryUrl}`;
+  const registryString: string = `${scope}registry=${registryUrl}`;
   const alwaysAuthString: string = `always-auth=${alwaysAuth}`;
   newContents += `${authString}${os.EOL}${registryString}${os.EOL}${alwaysAuthString}`;
   fs.writeFileSync(fileLocation, newContents);

src/cache-restore.ts

@@ -4,7 +4,7 @@ import * as glob from '@actions/glob';
 import path from 'path';
 import fs from 'fs';
 
-import {State, Outputs} from './constants';
+import {State} from './constants';
 import {
   getCacheDirectoryPath,
   getPackageManagerInfo,

src/cache-utils.ts

@@ -105,19 +105,18 @@ export function isGhes(): boolean {
 }
 
 export function isCacheFeatureAvailable(): boolean {
-  if (!cache.isFeatureAvailable()) {
-    if (isGhes()) {
-      throw new Error(
-        'Cache action is only supported on GHES version >= 3.5. If you are on version >=3.5 Please check with GHES admin if Actions cache service is enabled or not.'
-      );
-    } else {
-      core.warning(
-        'The runner was not able to contact the cache service. Caching will be skipped'
-      );
-    }
+  if (cache.isFeatureAvailable()) return true;
 
+  if (isGhes()) {
+    core.warning(
+      'Cache action is only supported on GHES version >= 3.5. If you are on version >=3.5 Please check with GHES admin if Actions cache service is enabled or not.'
+    );
     return false;
   }
 
-  return true;
+  core.warning(
+    'The runner was not able to contact the cache service. Caching will be skipped'
+  );
+
+  return false;
 }

src/distributions/base-distribution-prerelease.ts

@@ -0,0 +1,53 @@
+import * as tc from '@actions/tool-cache';
+
+import semver from 'semver';
+
+import BaseDistribution from './base-distribution';
+import {NodeInputs} from './base-models';
+
+export default abstract class BasePrereleaseNodejs extends BaseDistribution {
+  protected abstract distribution: string;
+  constructor(nodeInfo: NodeInputs) {
+    super(nodeInfo);
+  }
+
+  protected findVersionInHostedToolCacheDirectory(): string {
+    let toolPath = '';
+    const localVersionPaths = tc
+      .findAllVersions('node', this.nodeInfo.arch)
+      .filter(i => {
+        const prerelease = semver.prerelease(i);
+        if (!prerelease) {
+          return false;
+        }
+
+        return prerelease[0].includes(this.distribution);
+      });
+    localVersionPaths.sort(semver.rcompare);
+    const localVersion = this.evaluateVersions(localVersionPaths);
+    if (localVersion) {
+      toolPath = tc.find('node', localVersion, this.nodeInfo.arch);
+    }
+
+    return toolPath;
+  }
+
+  protected validRange(versionSpec: string) {
+    let range: string;
+    const [raw, prerelease] = this.splitVersionSpec(versionSpec);
+    const isValidVersion = semver.valid(raw);
+    const rawVersion = (isValidVersion ? raw : semver.coerce(raw))!;
+
+    if (prerelease !== this.distribution) {
+      range = versionSpec;
+    } else {
+      range = `${semver.validRange(`^${rawVersion}-${this.distribution}`)}-0`;
+    }
+
+    return {range, options: {includePrerelease: !isValidVersion}};
+  }
+
+  protected splitVersionSpec(versionSpec: string) {
+    return versionSpec.split(/-(.*)/s);
+  }
+}

src/distributions/base-distribution.ts

@@ -0,0 +1,287 @@
+import * as tc from '@actions/tool-cache';
+import * as hc from '@actions/http-client';
+import * as core from '@actions/core';
+import * as io from '@actions/io';
+
+import semver from 'semver';
+import * as assert from 'assert';
+
+import * as path from 'path';
+import os from 'os';
+import fs from 'fs';
+
+import {NodeInputs, INodeVersion, INodeVersionInfo} from './base-models';
+
+export default abstract class BaseDistribution {
+  protected httpClient: hc.HttpClient;
+  protected osPlat = os.platform();
+
+  constructor(protected nodeInfo: NodeInputs) {
+    this.httpClient = new hc.HttpClient('setup-node', [], {
+      allowRetries: true,
+      maxRetries: 3
+    });
+  }
+
+  protected abstract getDistributionUrl(): string;
+
+  public async setupNodeJs() {
+    let nodeJsVersions: INodeVersion[] | undefined;
+    if (this.nodeInfo.checkLatest) {
+      const evaluatedVersion = await this.findVersionInDist(nodeJsVersions);
+      this.nodeInfo.versionSpec = evaluatedVersion;
+    }
+
+    let toolPath = this.findVersionInHostedToolCacheDirectory();
+    if (toolPath) {
+      core.info(`Found in cache @ ${toolPath}`);
+    } else {
+      const evaluatedVersion = await this.findVersionInDist(nodeJsVersions);
+      const toolName = this.getNodejsDistInfo(evaluatedVersion);
+      toolPath = await this.downloadNodejs(toolName);
+    }
+
+    if (this.osPlat != 'win32') {
+      toolPath = path.join(toolPath, 'bin');
+    }
+
+    core.addPath(toolPath);
+  }
+
+  protected async findVersionInDist(nodeJsVersions?: INodeVersion[]) {
+    if (!nodeJsVersions) {
+      nodeJsVersions = await this.getNodeJsVersions();
+    }
+    const versions = this.filterVersions(nodeJsVersions);
+    const evaluatedVersion = this.evaluateVersions(versions);
+    if (!evaluatedVersion) {
+      throw new Error(
+        `Unable to find Node version '${this.nodeInfo.versionSpec}' for platform ${this.osPlat} and architecture ${this.nodeInfo.arch}.`
+      );
+    }
+
+    return evaluatedVersion;
+  }
+
+  protected evaluateVersions(versions: string[]): string {
+    let version = '';
+
+    const {range, options} = this.validRange(this.nodeInfo.versionSpec);
+
+    core.debug(`evaluating ${versions.length} versions`);
+
+    for (let potential of versions) {
+      const satisfied: boolean = semver.satisfies(potential, range, options);
+      if (satisfied) {
+        version = potential;
+        break;
+      }
+    }
+
+    if (version) {
+      core.debug(`matched: ${version}`);
+    } else {
+      core.debug('match not found');
+    }
+
+    return version;
+  }
+
+  protected findVersionInHostedToolCacheDirectory() {
+    return tc.find('node', this.nodeInfo.versionSpec, this.nodeInfo.arch);
+  }
+
+  protected async getNodeJsVersions(): Promise<INodeVersion[]> {
+    const initialUrl = this.getDistributionUrl();
+    const dataUrl = `${initialUrl}/index.json`;
+
+    let response = await this.httpClient.getJson<INodeVersion[]>(dataUrl);
+    return response.result || [];
+  }
+
+  protected getNodejsDistInfo(version: string) {
+    let osArch: string = this.translateArchToDistUrl(this.nodeInfo.arch);
+    version = semver.clean(version) || '';
+    let fileName: string =
+      this.osPlat == 'win32'
+        ? `node-v${version}-win-${osArch}`
+        : `node-v${version}-${this.osPlat}-${osArch}`;
+    let urlFileName: string =
+      this.osPlat == 'win32' ? `${fileName}.7z` : `${fileName}.tar.gz`;
+    const initialUrl = this.getDistributionUrl();
+    const url = `${initialUrl}/v${version}/${urlFileName}`;
+
+    return <INodeVersionInfo>{
+      downloadUrl: url,
+      resolvedVersion: version,
+      arch: osArch,
+      fileName: fileName
+    };
+  }
+
+  protected async downloadNodejs(info: INodeVersionInfo) {
+    let downloadPath = '';
+    core.info(
+      `Acquiring ${info.resolvedVersion} - ${info.arch} from ${info.downloadUrl}`
+    );
+    try {
+      downloadPath = await tc.downloadTool(info.downloadUrl);
+    } catch (err) {
+      if (err instanceof tc.HTTPError && err.httpStatusCode == 404) {
+        return await this.acquireNodeFromFallbackLocation(
+          info.resolvedVersion,
+          info.arch
+        );
+      }
+
+      throw err;
+    }
+
+    let toolPath = await this.extractArchive(downloadPath, info);
+    core.info('Done');
+
+    return toolPath;
+  }
+
+  protected validRange(versionSpec: string) {
+    let options: semver.Options | undefined;
+    const c = semver.clean(versionSpec) || '';
+    const valid = semver.valid(c) ?? versionSpec;
+
+    return {range: valid, options};
+  }
+
+  protected async acquireNodeFromFallbackLocation(
+    version: string,
+    arch: string = os.arch()
+  ): Promise<string> {
+    const initialUrl = this.getDistributionUrl();
+    let osArch: string = this.translateArchToDistUrl(arch);
+
+    // Create temporary folder to download in to
+    const tempDownloadFolder: string =
+      'temp_' + Math.floor(Math.random() * 2000000000);
+    const tempDirectory = process.env['RUNNER_TEMP'] || '';
+    assert.ok(tempDirectory, 'Expected RUNNER_TEMP to be defined');
+    const tempDir: string = path.join(tempDirectory, tempDownloadFolder);
+    await io.mkdirP(tempDir);
+    let exeUrl: string;
+    let libUrl: string;
+    try {
+      exeUrl = `${initialUrl}/v${version}/win-${osArch}/node.exe`;
+      libUrl = `${initialUrl}/v${version}/win-${osArch}/node.lib`;
+
+      core.info(`Downloading only node binary from ${exeUrl}`);
+
+      const exePath = await tc.downloadTool(exeUrl);
+      await io.cp(exePath, path.join(tempDir, 'node.exe'));
+      const libPath = await tc.downloadTool(libUrl);
+      await io.cp(libPath, path.join(tempDir, 'node.lib'));
+    } catch (err) {
+      if (err instanceof tc.HTTPError && err.httpStatusCode == 404) {
+        exeUrl = `${initialUrl}/v${version}/node.exe`;
+        libUrl = `${initialUrl}/v${version}/node.lib`;
+
+        const exePath = await tc.downloadTool(exeUrl);
+        await io.cp(exePath, path.join(tempDir, 'node.exe'));
+        const libPath = await tc.downloadTool(libUrl);
+        await io.cp(libPath, path.join(tempDir, 'node.lib'));
+      } else {
+        throw err;
+      }
+    }
+
+    const toolPath = await tc.cacheDir(tempDir, 'node', version, arch);
+
+    return toolPath;
+  }
+
+  protected async extractArchive(
+    downloadPath: string,
+    info: INodeVersionInfo | null
+  ) {
+    //
+    // Extract
+    //
+    core.info('Extracting ...');
+    let extPath: string;
+    info = info || ({} as INodeVersionInfo); // satisfy compiler, never null when reaches here
+    if (this.osPlat == 'win32') {
+      const _7zPath = path.join(__dirname, '../..', 'externals', '7zr.exe');
+      extPath = await tc.extract7z(downloadPath, undefined, _7zPath);
+      // 7z extracts to folder matching file name
+      const nestedPath = path.join(
+        extPath,
+        path.basename(info.fileName, '.7z')
+      );
+      if (fs.existsSync(nestedPath)) {
+        extPath = nestedPath;
+      }
+    } else {
+      extPath = await tc.extractTar(downloadPath, undefined, [
+        'xz',
+        '--strip',
+        '1'
+      ]);
+    }
+
+    //
+    // Install into the local tool cache - node extracts with a root folder that matches the fileName downloaded
+    //
+    core.info('Adding to the cache ...');
+    const toolPath = await tc.cacheDir(
+      extPath,
+      'node',
+      info.resolvedVersion,
+      info.arch
+    );
+
+    return toolPath;
+  }
+
+  protected getDistFileName(): string {
+    let osArch: string = this.translateArchToDistUrl(this.nodeInfo.arch);
+
+    // node offers a json list of versions
+    let dataFileName: string;
+    switch (this.osPlat) {
+      case 'linux':
+        dataFileName = `linux-${osArch}`;
+        break;
+      case 'darwin':
+        dataFileName = `osx-${osArch}-tar`;
+        break;
+      case 'win32':
+        dataFileName = `win-${osArch}-exe`;
+        break;
+      default:
+        throw new Error(`Unexpected OS '${this.osPlat}'`);
+    }
+
+    return dataFileName;
+  }
+
+  protected filterVersions(nodeJsVersions: INodeVersion[]) {
+    const versions: string[] = [];
+
+    const dataFileName = this.getDistFileName();
+
+    nodeJsVersions.forEach((nodeVersion: INodeVersion) => {
+      // ensure this version supports your os and platform
+      if (nodeVersion.files.indexOf(dataFileName) >= 0) {
+        versions.push(nodeVersion.version);
+      }
+    });
+
+    return versions.sort(semver.rcompare);
+  }
+
+  protected translateArchToDistUrl(arch: string): string {
+    switch (arch) {
+      case 'arm':
+        return 'armv7l';
+      default:
+        return arch;
+    }
+  }
+}

src/distributions/base-models.ts

@@ -0,0 +1,19 @@
+export interface NodeInputs {
+  versionSpec: string;
+  arch: string;
+  auth?: string;
+  checkLatest: boolean;
+  stable: boolean;
+}
+
+export interface INodeVersionInfo {
+  downloadUrl: string;
+  resolvedVersion: string;
+  arch: string;
+  fileName: string;
+}
+
+export interface INodeVersion {
+  version: string;
+  files: string[];
+}

src/distributions/installer-factory.ts

@@ -0,0 +1,31 @@
+import BaseDistribution from './base-distribution';
+import {NodeInputs} from './base-models';
+import NightlyNodejs from './nightly/nightly_builds';
+import OfficialBuilds from './official_builds/official_builds';
+import RcBuild from './rc/rc_builds';
+import CanaryBuild from './v8-canary/canary_builds';
+
+enum Distributions {
+  DEFAULT = '',
+  CANARY = 'v8-canary',
+  NIGHTLY = 'nightly',
+  RC = 'rc'
+}
+
+export function getNodejsDistribution(
+  installerOptions: NodeInputs
+): BaseDistribution {
+  const versionSpec = installerOptions.versionSpec;
+  let distribution: BaseDistribution;
+  if (versionSpec.includes(Distributions.NIGHTLY)) {
+    distribution = new NightlyNodejs(installerOptions);
+  } else if (versionSpec.includes(Distributions.CANARY)) {
+    distribution = new CanaryBuild(installerOptions);
+  } else if (versionSpec.includes(Distributions.RC)) {
+    distribution = new RcBuild(installerOptions);
+  } else {
+    distribution = new OfficialBuilds(installerOptions);
+  }
+
+  return distribution;
+}

src/distributions/nightly/nightly_builds.ts

@@ -0,0 +1,13 @@
+import BasePrereleaseNodejs from '../base-distribution-prerelease';
+import {NodeInputs} from '../base-models';
+
+export default class NightlyNodejs extends BasePrereleaseNodejs {
+  protected distribution = 'nightly';
+  constructor(nodeInfo: NodeInputs) {
+    super(nodeInfo);
+  }
+
+  protected getDistributionUrl(): string {
+    return 'https://nodejs.org/download/nightly';
+  }
+}

src/distributions/official_builds/official_builds.ts

@@ -0,0 +1,258 @@
+import * as core from '@actions/core';
+import * as tc from '@actions/tool-cache';
+import path from 'path';
+
+import BaseDistribution from '../base-distribution';
+import {NodeInputs, INodeVersion, INodeVersionInfo} from '../base-models';
+
+interface INodeRelease extends tc.IToolRelease {
+  lts?: string;
+}
+
+export default class OfficialBuilds extends BaseDistribution {
+  constructor(nodeInfo: NodeInputs) {
+    super(nodeInfo);
+  }
+
+  public async setupNodeJs() {
+    let manifest: tc.IToolRelease[] | undefined;
+    let nodeJsVersions: INodeVersion[] | undefined;
+    const osArch = this.translateArchToDistUrl(this.nodeInfo.arch);
+    if (this.isLtsAlias(this.nodeInfo.versionSpec)) {
+      core.info('Attempt to resolve LTS alias from manifest...');
+
+      // No try-catch since it's not possible to resolve LTS alias without manifest
+      manifest = await this.getManifest();
+
+      this.nodeInfo.versionSpec = this.resolveLtsAliasFromManifest(
+        this.nodeInfo.versionSpec,
+        this.nodeInfo.stable,
+        manifest
+      );
+    }
+
+    if (this.isLatestSyntax(this.nodeInfo.versionSpec)) {
+      nodeJsVersions = await this.getNodeJsVersions();
+      const versions = this.filterVersions(nodeJsVersions);
+      this.nodeInfo.versionSpec = this.evaluateVersions(versions);
+
+      core.info('getting latest node version...');
+    }
+
+    if (this.nodeInfo.checkLatest) {
+      core.info('Attempt to resolve the latest version from manifest...');
+      const resolvedVersion = await this.resolveVersionFromManifest(
+        this.nodeInfo.versionSpec,
+        this.nodeInfo.stable,
+        osArch,
+        manifest
+      );
+      if (resolvedVersion) {
+        this.nodeInfo.versionSpec = resolvedVersion;
+        core.info(`Resolved as '${resolvedVersion}'`);
+      } else {
+        core.info(
+          `Failed to resolve version ${this.nodeInfo.versionSpec} from manifest`
+        );
+      }
+    }
+
+    let toolPath = this.findVersionInHostedToolCacheDirectory();
+
+    if (toolPath) {
+      core.info(`Found in cache @ ${toolPath}`);
+    } else {
+      let downloadPath = '';
+      try {
+        core.info(`Attempting to download ${this.nodeInfo.versionSpec}...`);
+
+        const versionInfo = await this.getInfoFromManifest(
+          this.nodeInfo.versionSpec,
+          this.nodeInfo.stable,
+          osArch,
+          manifest
+        );
+        if (versionInfo) {
+          core.info(
+            `Acquiring ${versionInfo.resolvedVersion} - ${versionInfo.arch} from ${versionInfo.downloadUrl}`
+          );
+          downloadPath = await tc.downloadTool(
+            versionInfo.downloadUrl,
+            undefined,
+            this.nodeInfo.auth
+          );
+
+          if (downloadPath) {
+            toolPath = await this.extractArchive(downloadPath, versionInfo);
+          }
+        } else {
+          core.info(
+            'Not found in manifest. Falling back to download directly from Node'
+          );
+        }
+      } catch (err) {
+        // Rate limit?
+        if (
+          err instanceof tc.HTTPError &&
+          (err.httpStatusCode === 403 || err.httpStatusCode === 429)
+        ) {
+          core.info(
+            `Received HTTP status code ${err.httpStatusCode}. This usually indicates the rate limit has been exceeded`
+          );
+        } else {
+          core.info(err.message);
+        }
+        core.debug(err.stack);
+        core.info('Falling back to download directly from Node');
+      }
+
+      if (!toolPath) {
+        const nodeJsVersions = await this.getNodeJsVersions();
+        const versions = this.filterVersions(nodeJsVersions);
+        const evaluatedVersion = this.evaluateVersions(versions);
+        if (!evaluatedVersion) {
+          throw new Error(
+            `Unable to find Node version '${this.nodeInfo.versionSpec}' for platform ${this.osPlat} and architecture ${this.nodeInfo.arch}.`
+          );
+        }
+        const toolName = this.getNodejsDistInfo(evaluatedVersion);
+        toolPath = await this.downloadNodejs(toolName);
+      }
+    }
+
+    if (this.osPlat != 'win32') {
+      toolPath = path.join(toolPath, 'bin');
+    }
+
+    core.addPath(toolPath);
+  }
+
+  protected evaluateVersions(versions: string[]): string {
+    let version = '';
+
+    if (this.isLatestSyntax(this.nodeInfo.versionSpec)) {
+      core.info(`getting latest node version...`);
+      return versions[0];
+    }
+
+    version = super.evaluateVersions(versions);
+
+    return version;
+  }
+
+  protected getDistributionUrl(): string {
+    return `https://nodejs.org/dist`;
+  }
+
+  private getManifest(): Promise<tc.IToolRelease[]> {
+    core.debug('Getting manifest from actions/node-versions@main');
+    return tc.getManifestFromRepo(
+      'actions',
+      'node-versions',
+      this.nodeInfo.auth,
+      'main'
+    );
+  }
+
+  private resolveLtsAliasFromManifest(
+    versionSpec: string,
+    stable: boolean,
+    manifest: INodeRelease[]
+  ): string {
+    const alias = versionSpec.split('lts/')[1]?.toLowerCase();
+
+    if (!alias) {
+      throw new Error(
+        `Unable to parse LTS alias for Node version '${versionSpec}'`
+      );
+    }
+
+    core.debug(`LTS alias '${alias}' for Node version '${versionSpec}'`);
+
+    // Supported formats are `lts/<alias>`, `lts/*`, and `lts/-n`. Where asterisk means highest possible LTS and -n means the nth-highest.
+    const n = Number(alias);
+    const aliases = Object.fromEntries(
+      manifest
+        .filter(x => x.lts && x.stable === stable)
+        .map(x => [x.lts!.toLowerCase(), x])
+        .reverse()
+    );
+    const numbered = Object.values(aliases);
+    const release =
+      alias === '*'
+        ? numbered[numbered.length - 1]
+        : n < 0
+        ? numbered[numbered.length - 1 + n]
+        : aliases[alias];
+
+    if (!release) {
+      throw new Error(
+        `Unable to find LTS release '${alias}' for Node version '${versionSpec}'.`
+      );
+    }
+
+    core.debug(
+      `Found LTS release '${release.version}' for Node version '${versionSpec}'`
+    );
+
+    return release.version.split('.')[0];
+  }
+
+  private async resolveVersionFromManifest(
+    versionSpec: string,
+    stable: boolean,
+    osArch: string,
+    manifest: tc.IToolRelease[] | undefined
+  ): Promise<string | undefined> {
+    try {
+      const info = await this.getInfoFromManifest(
+        versionSpec,
+        stable,
+        osArch,
+        manifest
+      );
+      return info?.resolvedVersion;
+    } catch (err) {
+      core.info('Unable to resolve version from manifest...');
+      core.debug(err.message);
+    }
+  }
+
+  private async getInfoFromManifest(
+    versionSpec: string,
+    stable: boolean,
+    osArch: string,
+    manifest: tc.IToolRelease[] | undefined
+  ): Promise<INodeVersionInfo | null> {
+    let info: INodeVersionInfo | null = null;
+    if (!manifest) {
+      core.debug('No manifest cached');
+      manifest = await this.getManifest();
+    }
+
+    const rel = await tc.findFromManifest(
+      versionSpec,
+      stable,
+      manifest,
+      osArch
+    );
+
+    if (rel && rel.files.length > 0) {
+      info = <INodeVersionInfo>{};
+      info.resolvedVersion = rel.version;
+      info.arch = rel.files[0].arch;
+      info.downloadUrl = rel.files[0].download_url;
+      info.fileName = rel.files[0].filename;
+    }
+
+    return info;
+  }
+
+  private isLtsAlias(versionSpec: string): boolean {
+    return versionSpec.startsWith('lts/');
+  }
+
+  private isLatestSyntax(versionSpec): boolean {
+    return ['current', 'latest', 'node'].includes(versionSpec);
+  }
+}

src/distributions/rc/rc_builds.ts

@@ -0,0 +1,12 @@
+import BaseDistribution from '../base-distribution';
+import {NodeInputs} from '../base-models';
+
+export default class RcBuild extends BaseDistribution {
+  constructor(nodeInfo: NodeInputs) {
+    super(nodeInfo);
+  }
+
+  getDistributionUrl(): string {
+    return 'https://nodejs.org/download/rc';
+  }
+}

src/distributions/v8-canary/canary_builds.ts

@@ -0,0 +1,13 @@
+import BasePrereleaseNodejs from '../base-distribution-prerelease';
+import {NodeInputs} from '../base-models';
+
+export default class CanaryBuild extends BasePrereleaseNodejs {
+  protected distribution = 'v8-canary';
+  constructor(nodeInfo: NodeInputs) {
+    super(nodeInfo);
+  }
+
+  protected getDistributionUrl(): string {
+    return 'https://nodejs.org/download/v8-canary';
+  }
+}

src/installer.ts

@@ -1,512 +0,0 @@
-import os = require('os');
-import * as assert from 'assert';
-import * as core from '@actions/core';
-import * as hc from '@actions/http-client';
-import * as io from '@actions/io';
-import * as tc from '@actions/tool-cache';
-import * as path from 'path';
-import * as semver from 'semver';
-import fs = require('fs');
-
-//
-// Node versions interface
-// see https://nodejs.org/dist/index.json
-//
-export interface INodeVersion {
-  version: string;
-  files: string[];
-}
-
-interface INodeVersionInfo {
-  downloadUrl: string;
-  resolvedVersion: string;
-  arch: string;
-  fileName: string;
-}
-
-interface INodeRelease extends tc.IToolRelease {
-  lts?: string;
-}
-
-export async function getNode(
-  versionSpec: string,
-  stable: boolean,
-  checkLatest: boolean,
-  auth: string | undefined,
-  arch: string = os.arch()
-) {
-  // Store manifest data to avoid multiple calls
-  let manifest: INodeRelease[] | undefined;
-  let nodeVersions: INodeVersion[] | undefined;
-  let osPlat: string = os.platform();
-  let osArch: string = translateArchToDistUrl(arch);
-
-  if (isLtsAlias(versionSpec)) {
-    core.info('Attempt to resolve LTS alias from manifest...');
-
-    // No try-catch since it's not possible to resolve LTS alias without manifest
-    manifest = await getManifest(auth);
-
-    versionSpec = resolveLtsAliasFromManifest(versionSpec, stable, manifest);
-  }
-
-  if (isLatestSyntax(versionSpec)) {
-    nodeVersions = await getVersionsFromDist();
-    versionSpec = await queryDistForMatch(versionSpec, arch, nodeVersions);
-    core.info(`getting latest node version...`);
-  }
-
-  if (checkLatest) {
-    core.info('Attempt to resolve the latest version from manifest...');
-    const resolvedVersion = await resolveVersionFromManifest(
-      versionSpec,
-      stable,
-      auth,
-      osArch,
-      manifest
-    );
-    if (resolvedVersion) {
-      versionSpec = resolvedVersion;
-      core.info(`Resolved as '${versionSpec}'`);
-    } else {
-      core.info(`Failed to resolve version ${versionSpec} from manifest`);
-    }
-  }
-
-  // check cache
-  let toolPath: string;
-  toolPath = tc.find('node', versionSpec, osArch);
-
-  // If not found in cache, download
-  if (toolPath) {
-    core.info(`Found in cache @ ${toolPath}`);
-  } else {
-    core.info(`Attempting to download ${versionSpec}...`);
-    let downloadPath = '';
-    let info: INodeVersionInfo | null = null;
-
-    //
-    // Try download from internal distribution (popular versions only)
-    //
-    try {
-      info = await getInfoFromManifest(
-        versionSpec,
-        stable,
-        auth,
-        osArch,
-        manifest
-      );
-      if (info) {
-        core.info(
-          `Acquiring ${info.resolvedVersion} - ${info.arch} from ${info.downloadUrl}`
-        );
-        downloadPath = await tc.downloadTool(info.downloadUrl, undefined, auth);
-      } else {
-        core.info(
-          'Not found in manifest.  Falling back to download directly from Node'
-        );
-      }
-    } catch (err) {
-      // Rate limit?
-      if (
-        err instanceof tc.HTTPError &&
-        (err.httpStatusCode === 403 || err.httpStatusCode === 429)
-      ) {
-        core.info(
-          `Received HTTP status code ${err.httpStatusCode}.  This usually indicates the rate limit has been exceeded`
-        );
-      } else {
-        core.info(err.message);
-      }
-      core.debug(err.stack);
-      core.info('Falling back to download directly from Node');
-    }
-
-    //
-    // Download from nodejs.org
-    //
-    if (!downloadPath) {
-      info = await getInfoFromDist(versionSpec, arch, nodeVersions);
-      if (!info) {
-        throw new Error(
-          `Unable to find Node version '${versionSpec}' for platform ${osPlat} and architecture ${osArch}.`
-        );
-      }
-
-      core.info(
-        `Acquiring ${info.resolvedVersion} - ${info.arch} from ${info.downloadUrl}`
-      );
-      try {
-        downloadPath = await tc.downloadTool(info.downloadUrl);
-      } catch (err) {
-        if (err instanceof tc.HTTPError && err.httpStatusCode == 404) {
-          return await acquireNodeFromFallbackLocation(
-            info.resolvedVersion,
-            info.arch
-          );
-        }
-
-        throw err;
-      }
-    }
-
-    //
-    // Extract
-    //
-    core.info('Extracting ...');
-    let extPath: string;
-    info = info || ({} as INodeVersionInfo); // satisfy compiler, never null when reaches here
-    if (osPlat == 'win32') {
-      let _7zPath = path.join(__dirname, '../..', 'externals', '7zr.exe');
-      extPath = await tc.extract7z(downloadPath, undefined, _7zPath);
-      // 7z extracts to folder matching file name
-      let nestedPath = path.join(extPath, path.basename(info.fileName, '.7z'));
-      if (fs.existsSync(nestedPath)) {
-        extPath = nestedPath;
-      }
-    } else {
-      extPath = await tc.extractTar(downloadPath, undefined, [
-        'xz',
-        '--strip',
-        '1'
-      ]);
-    }
-
-    //
-    // Install into the local tool cache - node extracts with a root folder that matches the fileName downloaded
-    //
-    core.info('Adding to the cache ...');
-    toolPath = await tc.cacheDir(
-      extPath,
-      'node',
-      info.resolvedVersion,
-      info.arch
-    );
-    core.info('Done');
-  }
-
-  //
-  // a tool installer initimately knows details about the layout of that tool
-  // for example, node binary is in the bin folder after the extract on Mac/Linux.
-  // layouts could change by version, by platform etc... but that's the tool installers job
-  //
-  if (osPlat != 'win32') {
-    toolPath = path.join(toolPath, 'bin');
-  }
-
-  //
-  // prepend the tools path. instructs the agent to prepend for future tasks
-  core.addPath(toolPath);
-}
-
-function isLtsAlias(versionSpec: string): boolean {
-  return versionSpec.startsWith('lts/');
-}
-
-function getManifest(auth: string | undefined): Promise<tc.IToolRelease[]> {
-  core.debug('Getting manifest from actions/node-versions@main');
-  return tc.getManifestFromRepo('actions', 'node-versions', auth, 'main');
-}
-
-function resolveLtsAliasFromManifest(
-  versionSpec: string,
-  stable: boolean,
-  manifest: INodeRelease[]
-): string {
-  const alias = versionSpec.split('lts/')[1]?.toLowerCase();
-
-  if (!alias) {
-    throw new Error(
-      `Unable to parse LTS alias for Node version '${versionSpec}'`
-    );
-  }
-
-  core.debug(`LTS alias '${alias}' for Node version '${versionSpec}'`);
-
-  // Supported formats are `lts/<alias>`, `lts/*`, and `lts/-n`. Where asterisk means highest possible LTS and -n means the nth-highest.
-  const n = Number(alias);
-  const aliases = Object.fromEntries(
-    manifest
-      .filter(x => x.lts && x.stable === stable)
-      .map(x => [x.lts!.toLowerCase(), x])
-      .reverse()
-  );
-  const numbered = Object.values(aliases);
-  const release =
-    alias === '*'
-      ? numbered[numbered.length - 1]
-      : n < 0
-      ? numbered[numbered.length - 1 + n]
-      : aliases[alias];
-
-  if (!release) {
-    throw new Error(
-      `Unable to find LTS release '${alias}' for Node version '${versionSpec}'.`
-    );
-  }
-
-  core.debug(
-    `Found LTS release '${release.version}' for Node version '${versionSpec}'`
-  );
-
-  return release.version.split('.')[0];
-}
-
-async function getInfoFromManifest(
-  versionSpec: string,
-  stable: boolean,
-  auth: string | undefined,
-  osArch: string = translateArchToDistUrl(os.arch()),
-  manifest: tc.IToolRelease[] | undefined
-): Promise<INodeVersionInfo | null> {
-  let info: INodeVersionInfo | null = null;
-  if (!manifest) {
-    core.debug('No manifest cached');
-    manifest = await getManifest(auth);
-  }
-
-  const rel = await tc.findFromManifest(versionSpec, stable, manifest, osArch);
-
-  if (rel && rel.files.length > 0) {
-    info = <INodeVersionInfo>{};
-    info.resolvedVersion = rel.version;
-    info.arch = rel.files[0].arch;
-    info.downloadUrl = rel.files[0].download_url;
-    info.fileName = rel.files[0].filename;
-  }
-
-  return info;
-}
-
-async function getInfoFromDist(
-  versionSpec: string,
-  arch: string = os.arch(),
-  nodeVersions?: INodeVersion[]
-): Promise<INodeVersionInfo | null> {
-  let osPlat: string = os.platform();
-  let osArch: string = translateArchToDistUrl(arch);
-
-  let version: string = await queryDistForMatch(
-    versionSpec,
-    arch,
-    nodeVersions
-  );
-
-  if (!version) {
-    return null;
-  }
-
-  //
-  // Download - a tool installer intimately knows how to get the tool (and construct urls)
-  //
-  version = semver.clean(version) || '';
-  let fileName: string =
-    osPlat == 'win32'
-      ? `node-v${version}-win-${osArch}`
-      : `node-v${version}-${osPlat}-${osArch}`;
-  let urlFileName: string =
-    osPlat == 'win32' ? `${fileName}.7z` : `${fileName}.tar.gz`;
-  let url = `https://nodejs.org/dist/v${version}/${urlFileName}`;
-
-  return <INodeVersionInfo>{
-    downloadUrl: url,
-    resolvedVersion: version,
-    arch: arch,
-    fileName: fileName
-  };
-}
-
-async function resolveVersionFromManifest(
-  versionSpec: string,
-  stable: boolean,
-  auth: string | undefined,
-  osArch: string = translateArchToDistUrl(os.arch()),
-  manifest: tc.IToolRelease[] | undefined
-): Promise<string | undefined> {
-  try {
-    const info = await getInfoFromManifest(
-      versionSpec,
-      stable,
-      auth,
-      osArch,
-      manifest
-    );
-    return info?.resolvedVersion;
-  } catch (err) {
-    core.info('Unable to resolve version from manifest...');
-    core.debug(err.message);
-  }
-}
-
-// TODO - should we just export this from @actions/tool-cache? Lifted directly from there
-function evaluateVersions(versions: string[], versionSpec: string): string {
-  let version = '';
-  core.debug(`evaluating ${versions.length} versions`);
-  versions = versions.sort((a, b) => {
-    if (semver.gt(a, b)) {
-      return 1;
-    }
-    return -1;
-  });
-  for (let i = versions.length - 1; i >= 0; i--) {
-    const potential: string = versions[i];
-    const satisfied: boolean = semver.satisfies(potential, versionSpec);
-    if (satisfied) {
-      version = potential;
-      break;
-    }
-  }
-
-  if (version) {
-    core.debug(`matched: ${version}`);
-  } else {
-    core.debug('match not found');
-  }
-
-  return version;
-}
-
-async function queryDistForMatch(
-  versionSpec: string,
-  arch: string = os.arch(),
-  nodeVersions?: INodeVersion[]
-): Promise<string> {
-  let osPlat: string = os.platform();
-  let osArch: string = translateArchToDistUrl(arch);
-
-  // node offers a json list of versions
-  let dataFileName: string;
-  switch (osPlat) {
-    case 'linux':
-      dataFileName = `linux-${osArch}`;
-      break;
-    case 'darwin':
-      dataFileName = `osx-${osArch}-tar`;
-      break;
-    case 'win32':
-      dataFileName = `win-${osArch}-exe`;
-      break;
-    default:
-      throw new Error(`Unexpected OS '${osPlat}'`);
-  }
-
-  if (!nodeVersions) {
-    core.debug('No dist manifest cached');
-    nodeVersions = await getVersionsFromDist();
-  }
-
-  let versions: string[] = [];
-
-  if (isLatestSyntax(versionSpec)) {
-    core.info(`getting latest node version...`);
-    return nodeVersions[0].version;
-  }
-
-  nodeVersions.forEach((nodeVersion: INodeVersion) => {
-    // ensure this version supports your os and platform
-    if (nodeVersion.files.indexOf(dataFileName) >= 0) {
-      versions.push(nodeVersion.version);
-    }
-  });
-
-  // get the latest version that matches the version spec
-  let version: string = evaluateVersions(versions, versionSpec);
-  return version;
-}
-
-export async function getVersionsFromDist(): Promise<INodeVersion[]> {
-  let dataUrl = 'https://nodejs.org/dist/index.json';
-  let httpClient = new hc.HttpClient('setup-node', [], {
-    allowRetries: true,
-    maxRetries: 3
-  });
-  let response = await httpClient.getJson<INodeVersion[]>(dataUrl);
-  return response.result || [];
-}
-
-// For non LTS versions of Node, the files we need (for Windows) are sometimes located
-// in a different folder than they normally are for other versions.
-// Normally the format is similar to: https://nodejs.org/dist/v5.10.1/node-v5.10.1-win-x64.7z
-// In this case, there will be two files located at:
-//      /dist/v5.10.1/win-x64/node.exe
-//      /dist/v5.10.1/win-x64/node.lib
-// If this is not the structure, there may also be two files located at:
-//      /dist/v0.12.18/node.exe
-//      /dist/v0.12.18/node.lib
-// This method attempts to download and cache the resources from these alternative locations.
-// Note also that the files are normally zipped but in this case they are just an exe
-// and lib file in a folder, not zipped.
-async function acquireNodeFromFallbackLocation(
-  version: string,
-  arch: string = os.arch()
-): Promise<string> {
-  let osPlat: string = os.platform();
-  let osArch: string = translateArchToDistUrl(arch);
-
-  // Create temporary folder to download in to
-  const tempDownloadFolder: string =
-    'temp_' + Math.floor(Math.random() * 2000000000);
-  const tempDirectory = process.env['RUNNER_TEMP'] || '';
-  assert.ok(tempDirectory, 'Expected RUNNER_TEMP to be defined');
-  const tempDir: string = path.join(tempDirectory, tempDownloadFolder);
-  await io.mkdirP(tempDir);
-  let exeUrl: string;
-  let libUrl: string;
-  try {
-    exeUrl = `https://nodejs.org/dist/v${version}/win-${osArch}/node.exe`;
-    libUrl = `https://nodejs.org/dist/v${version}/win-${osArch}/node.lib`;
-
-    core.info(`Downloading only node binary from ${exeUrl}`);
-
-    const exePath = await tc.downloadTool(exeUrl);
-    await io.cp(exePath, path.join(tempDir, 'node.exe'));
-    const libPath = await tc.downloadTool(libUrl);
-    await io.cp(libPath, path.join(tempDir, 'node.lib'));
-  } catch (err) {
-    if (err instanceof tc.HTTPError && err.httpStatusCode == 404) {
-      exeUrl = `https://nodejs.org/dist/v${version}/node.exe`;
-      libUrl = `https://nodejs.org/dist/v${version}/node.lib`;
-
-      const exePath = await tc.downloadTool(exeUrl);
-      await io.cp(exePath, path.join(tempDir, 'node.exe'));
-      const libPath = await tc.downloadTool(libUrl);
-      await io.cp(libPath, path.join(tempDir, 'node.lib'));
-    } else {
-      throw err;
-    }
-  }
-  let toolPath = await tc.cacheDir(tempDir, 'node', version, arch);
-  core.addPath(toolPath);
-  return toolPath;
-}
-
-// os.arch does not always match the relative download url, e.g.
-// os.arch == 'arm' != node-v12.13.1-linux-armv7l.tar.gz
-// All other currently supported architectures match, e.g.:
-//   os.arch = arm64 => https://nodejs.org/dist/v{VERSION}/node-v{VERSION}-{OS}-arm64.tar.gz
-//   os.arch = x64 => https://nodejs.org/dist/v{VERSION}/node-v{VERSION}-{OS}-x64.tar.gz
-function translateArchToDistUrl(arch: string): string {
-  switch (arch) {
-    case 'arm':
-      return 'armv7l';
-    default:
-      return arch;
-  }
-}
-
-export function parseNodeVersionFile(contents: string): string {
-  const found = contents.match(/^(?:nodejs\s+)?v?(?<version>[^\s]+)$/m);
-  const nodeVersion = found?.groups?.version;
-
-  if (nodeVersion) {
-    return nodeVersion;
-  }
-
-  // In the case of an unknown format,
-  // return as is and evaluate the version separately.
-  return contents.trim();
-}
-
-function isLatestSyntax(versionSpec): boolean {
-  return ['current', 'latest', 'node'].includes(versionSpec);
-}

src/main.ts

@@ -1,12 +1,14 @@
 import * as core from '@actions/core';
-import * as exec from '@actions/exec';
-import * as installer from './installer';
+
 import fs from 'fs';
+import os from 'os';
+
 import * as auth from './authutil';
 import * as path from 'path';
 import {restoreCache} from './cache-restore';
-import {isGhes, isCacheFeatureAvailable} from './cache-utils';
-import os = require('os');
+import {isCacheFeatureAvailable} from './cache-utils';
+import {getNodejsDistribution} from './distributions/installer-factory';
+import {parseNodeVersionFile, printEnvDetailsAndSetOutput} from './util';
 
 export async function run() {
   try {
@@ -14,7 +16,7 @@ export async 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 = resolveVersionInput();
+    const version = resolveVersionInput();
 
     let arch = core.getInput('architecture');
     const cache = core.getInput('cache');
@@ -32,25 +34,24 @@ export async function run() {
     }
 
     if (version) {
-      let token = core.getInput('token');
-      let auth = !token || isGhes() ? undefined : `token ${token}`;
-      let stable = (core.getInput('stable') || 'true').toUpperCase() === 'TRUE';
+      const token = core.getInput('token');
+      const auth = !token ? undefined : `token ${token}`;
+      const stable =
+        (core.getInput('stable') || 'true').toUpperCase() === 'TRUE';
       const checkLatest =
         (core.getInput('check-latest') || 'false').toUpperCase() === 'TRUE';
-      await installer.getNode(version, stable, checkLatest, auth, arch);
+      const nodejsInfo = {
+        versionSpec: version,
+        checkLatest,
+        auth,
+        stable,
+        arch
+      };
+      const nodeDistribution = getNodejsDistribution(nodejsInfo);
+      await nodeDistribution.setupNodeJs();
     }
 
-    // Output version of node is being used
-    try {
-      const {stdout: installedVersion} = await exec.getExecOutput(
-        'node',
-        ['--version'],
-        {ignoreReturnCode: true, silent: true}
-      );
-      core.setOutput('node-version', installedVersion.trim());
-    } catch (err) {
-      core.setOutput('node-version', '');
-    }
+    await printEnvDetailsAndSetOutput();
 
     const registryUrl: string = core.getInput('registry-url');
     const alwaysAuth: string = core.getInput('always-auth');
@@ -95,14 +96,15 @@ function resolveVersionInput(): string {
       process.env.GITHUB_WORKSPACE!,
       versionFileInput
     );
+
     if (!fs.existsSync(versionFilePath)) {
       throw new Error(
         `The specified node version file at: ${versionFilePath} does not exist`
       );
     }
-    version = installer.parseNodeVersionFile(
-      fs.readFileSync(versionFilePath, 'utf8')
-    );
+
+    version = parseNodeVersionFile(fs.readFileSync(versionFilePath, 'utf8'));
+
     core.info(`Resolved ${versionFileInput} as ${version}`);
   }
 

src/util.ts

@@ -0,0 +1,63 @@
+import * as core from '@actions/core';
+import * as exec from '@actions/exec';
+
+export function parseNodeVersionFile(contents: string): string {
+  let nodeVersion: string | undefined;
+
+  // Try parsing the file as an NPM `package.json` file.
+  try {
+    nodeVersion = JSON.parse(contents).volta?.node;
+    if (!nodeVersion) nodeVersion = JSON.parse(contents).engines?.node;
+  } catch {
+    core.info('Node version file is not JSON file');
+  }
+
+  if (!nodeVersion) {
+    const found = contents.match(/^(?:nodejs\s+)?v?(?<version>[^\s]+)$/m);
+    nodeVersion = found?.groups?.version;
+  }
+
+  // In the case of an unknown format,
+  // return as is and evaluate the version separately.
+  if (!nodeVersion) nodeVersion = contents.trim();
+
+  return nodeVersion as string;
+}
+
+export async function printEnvDetailsAndSetOutput() {
+  core.startGroup('Environment details');
+
+  const promises = ['node', 'npm', 'yarn'].map(async tool => {
+    const output = await getToolVersion(tool, ['--version']);
+
+    return {tool, output};
+  });
+
+  const tools = await Promise.all(promises);
+  tools.forEach(({tool, output}) => {
+    if (tool === 'node') {
+      core.setOutput(`${tool}-version`, output);
+    }
+    core.info(`${tool}: ${output}`);
+  });
+
+  core.endGroup();
+}
+
+async function getToolVersion(tool: string, options: string[]) {
+  try {
+    const {stdout, stderr, exitCode} = await exec.getExecOutput(tool, options, {
+      ignoreReturnCode: true,
+      silent: true
+    });
+
+    if (exitCode > 0) {
+      core.info(`[warning]${stderr}`);
+      return '';
+    }
+
+    return stdout.trim();
+  } catch (err) {
+    return '';
+  }
+}

tsconfig.json

@@ -6,7 +6,7 @@
     "rootDir": "./src",                       /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
     "sourceMap": true,
     "strict": true,                           /* Enable all strict type-checking options. */
-    "noImplicitAny": false,                 /* Raise error on expressions and declarations with an implied 'any' type. */
+    "noImplicitAny": false,                   /* Raise error on expressions and declarations with an implied 'any' type. */
     "esModuleInterop": true                   /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
   },
   "exclude": ["__tests__", "lib", "node_modules"]