Merge pull request #272 from akv-platform/add-caching-for-node-dependencies

Implementation of node's caching
2024-11-12 09:38:04 +00:00 · 2021-06-30 14:07:42 +03:00 · 2021-06-30 14:07:42 +03:00 · e215578cb0
commit e215578cb0
parent 9af89732f0 cfe70f9fe8
72 changed files with 134749 additions and 17537 deletions
--- a/.gitattributes
+++ b/.gitattributes
@ -1,5 +1 @@
-# Set default behavior to automatically normalize line endings, and force everything to be LF, except for Windows batch files that require CRLF, so that if a repo is accessed in Unix via a file share from Windows, the scripts will work.
-* text=auto eol=lf
-*.{cmd,[cC][mM][dD]} text eol=crlf
-*.{bat,[bB][aA][tT]} text eol=crlf
 .licenses/** -diff linguist-generated=true
--- a/.github/workflows/e2e-cache.yml
+++ b/.github/workflows/e2e-cache.yml
@ -0,0 +1,101 @@
+name: e2e-cache
+
+on:
+  pull_request:
+    paths-ignore:
+      - '**.md'
+  push:
+    branches:
+      - main
+      - releases/*
+    paths-ignore:
+      - '**.md'
+      
+jobs:
+  node-npm-depencies-caching:
+    name: Test npm (Node ${{ matrix.node-version}}, ${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+        node-version: [10, 12, 14]
+    steps:
+      - uses: actions/checkout@v2
+      - name: Clean global cache
+        run: npm cache clean --force
+      - name: Setup Node
+        uses: ./
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: 'npm'
+      - name: Install dependencies
+        run: npm install
+      - name: Verify node and npm
+        run: __tests__/verify-node.sh "${{ matrix.node-version }}"
+        shell: bash
+
+  node-yarn1-depencies-caching:
+    name: Test yarn 1 (Node ${{ matrix.node-version}}, ${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+        node-version: [10, 12, 14]
+    steps:
+      - uses: actions/checkout@v2
+      - name: Yarn version
+        run: yarn --version
+      - name: Generate yarn file
+        run: yarn install
+      - name: Remove dependencies
+        shell: pwsh
+        run: Remove-Item node_modules -Force -Recurse
+      - name: Clean global cache
+        run: yarn cache clean
+      - name: Setup Node
+        uses: ./
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: 'yarn'
+      - name: Install dependencies
+        run: yarn install
+      - name: Verify node and yarn
+        run: __tests__/verify-node.sh "${{ matrix.node-version }}"
+        shell: bash
+
+  node-yarn2-depencies-caching:
+    name: Test yarn 2 (Node ${{ matrix.node-version}}, ${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+        node-version: [10, 12, 14]
+    steps:
+      - uses: actions/checkout@v2
+      - name: Update yarn
+        run: yarn set version berry
+      - name: Yarn version
+        run: yarn --version
+      - name: Generate simple .yarnrc.yml
+        run: |
+          echo "nodeLinker: node-modules" >> .yarnrc.yml
+      - name: Generate yarn file
+        run: yarn install
+      - name: Remove dependencies
+        shell: pwsh
+        run: Remove-Item node_modules -Force -Recurse
+      - name: Clean global cache
+        run: yarn cache clean --all
+      - name: Setup Node
+        uses: ./
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: 'yarn'
+      - name: Install dependencies
+        run: yarn install
+      - name: Verify node and yarn
+        run: __tests__/verify-node.sh "${{ matrix.node-version }}"
+        shell: bash
--- a/.github/workflows/versions.yml
+++ b/.github/workflows/versions.yml
@ -123,4 +123,4 @@ jobs:
          architecture: 'x86'
      - name: Verify node
        run: __tests__/verify-arch.sh "ia32"
-        shell: bash
+        shell: bash
--- a/.licensed.yml
+++ b/.licensed.yml
@ -3,6 +3,7 @@ sources:

 allowed:
  - apache-2.0
+  - 0bsd
  - bsd-2-clause
  - bsd-3-clause
  - isc
--- a/.licenses/npm/@actions/cache.dep.yml
+++ b/.licenses/npm/@actions/cache.dep.yml
--- a/.licenses/npm/@actions/exec.dep.yml
+++ b/.licenses/npm/@actions/exec.dep.yml
--- a/.licenses/npm/@actions/glob-0.1.2.dep.yml
+++ b/.licenses/npm/@actions/glob-0.1.2.dep.yml
--- a/.licenses/npm/@actions/glob-0.2.0.dep.yml
+++ b/.licenses/npm/@actions/glob-0.2.0.dep.yml
--- a/.licenses/npm/@actions/http-client-1.0.11.dep.yml
+++ b/.licenses/npm/@actions/http-client-1.0.11.dep.yml
--- a/.licenses/npm/@azure/abort-controller.dep.yml
+++ b/.licenses/npm/@azure/abort-controller.dep.yml
--- a/.licenses/npm/@azure/core-asynciterator-polyfill.dep.yml
+++ b/.licenses/npm/@azure/core-asynciterator-polyfill.dep.yml
--- a/.licenses/npm/@azure/core-auth.dep.yml
+++ b/.licenses/npm/@azure/core-auth.dep.yml
--- a/.licenses/npm/@azure/core-http.dep.yml
+++ b/.licenses/npm/@azure/core-http.dep.yml
--- a/.licenses/npm/@azure/core-lro.dep.yml
+++ b/.licenses/npm/@azure/core-lro.dep.yml
--- a/.licenses/npm/@azure/core-paging.dep.yml
+++ b/.licenses/npm/@azure/core-paging.dep.yml
--- a/.licenses/npm/@azure/core-tracing.dep.yml
+++ b/.licenses/npm/@azure/core-tracing.dep.yml
--- a/.licenses/npm/@azure/logger.dep.yml
+++ b/.licenses/npm/@azure/logger.dep.yml
--- a/.licenses/npm/@azure/ms-rest-js.dep.yml
+++ b/.licenses/npm/@azure/ms-rest-js.dep.yml
--- a/.licenses/npm/@azure/storage-blob.dep.yml
+++ b/.licenses/npm/@azure/storage-blob.dep.yml
--- a/.licenses/npm/@opencensus/web-types.dep.yml
+++ b/.licenses/npm/@opencensus/web-types.dep.yml
--- a/.licenses/npm/@opentelemetry/api.dep.yml
+++ b/.licenses/npm/@opentelemetry/api.dep.yml
--- a/.licenses/npm/@types/node-fetch.dep.yml
+++ b/.licenses/npm/@types/node-fetch.dep.yml
--- a/.licenses/npm/@types/tunnel.dep.yml
+++ b/.licenses/npm/@types/tunnel.dep.yml
--- a/.licenses/npm/abort-controller.dep.yml
+++ b/.licenses/npm/abort-controller.dep.yml
--- a/.licenses/npm/asynckit.dep.yml
+++ b/.licenses/npm/asynckit.dep.yml
--- a/.licenses/npm/balanced-match.dep.yml
+++ b/.licenses/npm/balanced-match.dep.yml
--- a/.licenses/npm/brace-expansion.dep.yml
+++ b/.licenses/npm/brace-expansion.dep.yml
--- a/.licenses/npm/combined-stream.dep.yml
+++ b/.licenses/npm/combined-stream.dep.yml
--- a/.licenses/npm/concat-map.dep.yml
+++ b/.licenses/npm/concat-map.dep.yml
--- a/.licenses/npm/delayed-stream.dep.yml
+++ b/.licenses/npm/delayed-stream.dep.yml
--- a/.licenses/npm/event-target-shim.dep.yml
+++ b/.licenses/npm/event-target-shim.dep.yml
--- a/.licenses/npm/events.dep.yml
+++ b/.licenses/npm/events.dep.yml
--- a/.licenses/npm/form-data-2.5.1.dep.yml
+++ b/.licenses/npm/form-data-2.5.1.dep.yml
--- a/.licenses/npm/form-data-3.0.1.dep.yml
+++ b/.licenses/npm/form-data-3.0.1.dep.yml
--- a/.licenses/npm/ip-regex.dep.yml
+++ b/.licenses/npm/ip-regex.dep.yml
--- a/.licenses/npm/mime-db.dep.yml
+++ b/.licenses/npm/mime-db.dep.yml
--- a/.licenses/npm/mime-types.dep.yml
+++ b/.licenses/npm/mime-types.dep.yml
--- a/.licenses/npm/minimatch.dep.yml
+++ b/.licenses/npm/minimatch.dep.yml
--- a/.licenses/npm/node-fetch.dep.yml
+++ b/.licenses/npm/node-fetch.dep.yml
--- a/.licenses/npm/process.dep.yml
+++ b/.licenses/npm/process.dep.yml
--- a/.licenses/npm/psl.dep.yml
+++ b/.licenses/npm/psl.dep.yml
--- a/.licenses/npm/punycode.dep.yml
+++ b/.licenses/npm/punycode.dep.yml
--- a/.licenses/npm/sax.dep.yml
+++ b/.licenses/npm/sax.dep.yml
--- a/.licenses/npm/tough-cookie-3.0.1.dep.yml
+++ b/.licenses/npm/tough-cookie-3.0.1.dep.yml
--- a/.licenses/npm/tough-cookie-4.0.0.dep.yml
+++ b/.licenses/npm/tough-cookie-4.0.0.dep.yml
--- a/.licenses/npm/tslib-1.14.1.dep.yml
+++ b/.licenses/npm/tslib-1.14.1.dep.yml
--- a/.licenses/npm/tslib-2.3.0.dep.yml
+++ b/.licenses/npm/tslib-2.3.0.dep.yml
--- a/.licenses/npm/universalify.dep.yml
+++ b/.licenses/npm/universalify.dep.yml
--- a/.licenses/npm/uuid-3.3.2.dep.yml
+++ b/.licenses/npm/uuid-3.3.2.dep.yml
--- a/.licenses/npm/uuid-3.4.0.dep.yml
+++ b/.licenses/npm/uuid-3.4.0.dep.yml
--- a/.licenses/npm/uuid-8.3.2.dep.yml
+++ b/.licenses/npm/uuid-8.3.2.dep.yml
--- a/.licenses/npm/xml2js.dep.yml
+++ b/.licenses/npm/xml2js.dep.yml
--- a/.licenses/npm/xmlbuilder.dep.yml
+++ b/.licenses/npm/xmlbuilder.dep.yml
--- a/README.md
+++ b/README.md
@ -4,33 +4,18 @@
  <a href="https://github.com/actions/setup-node/actions?query=workflow%3Abuild-test"><img alt="build-test status" src="https://github.com/actions/setup-node/workflows/build-test/badge.svg"></a> <a href="https://github.com/actions/setup-node/actions?query=workflow%3Aversions"><img alt="versions status" src="https://github.com/actions/setup-node/workflows/versions/badge.svg"></a> <a href="https://github.com/actions/setup-node/actions?query=workflow%3Aproxy"><img alt="proxy status" src="https://github.com/actions/setup-node/workflows/proxy/badge.svg"></a> 
 </p>

-This action sets by node environment for use in actions by:
+This action provides the following functionality for GitHub Actions users:

- optionally downloading and caching a version of node - npm by version spec and add to PATH
- registering problem matchers for error output
- configuring authentication for GPR or npm
-
-# v2
-
-This release adds reliability for pulling node distributions from a cache of node releases.
-
-```yaml
-steps:
- uses: actions/checkout@v2
- uses: actions/setup-node@v2
-  with:
-    node-version: '14'
-```
-
-The action will first check the local cache for a semver match. The hosted images have been updated with the latest of each LTS from v8, v10, v12, and v14. `self-hosted` machines will benefit from the cache as well only downloading once. The action 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/).
-
-The `node-version` input is optional. If not supplied, the node version that is PATH will be used. However, this action will still register problem matchers and support auth features. So setting up the node environment is still a valid scenario without downloading and caching versions.
+- Optionally downloading and caching distribution of the requested Node.js version, and adding it to the PATH
+- Optionally caching npm/yarn dependencies
+- Registering problem matchers for error output
+- Configuring authentication for GPR or npm

 # Usage

 See [action.yml](action.yml)

-Basic:
+**Basic:**
 ```yaml
 steps:
 - uses: actions/checkout@v2
@ -41,13 +26,15 @@ steps:
 - run: npm test
 ```

-Check latest version:
+The `node-version` input is optional. If not supplied, the node version from PATH will be used. However, this action will still register problem matchers and support auth features. So setting up the node environment is still a valid scenario without downloading and caching versions.

-In the basic example above, the `check-latest` flag defaults to `false`. When set to `false`, the action tries to first resolve a version of node from the local cache. For information regarding locally cached versions of Node on GitHub hosted runners, check out [GitHub Actions Virtual Environments](https://github.com/actions/virtual-environments). The local version of Node in cache gets updated every couple of weeks. If unable to find a specific version in the cache, the action will then attempt to download a version of Node. Use the default or set `check-latest` to `false` if you prefer stability and if you want to ensure a specific version of Node is always used.
+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/).

-If `check-latest` is set to `true`, the action first checks if the cached version is the latest one. If the locally cached version is not the most up-to-date, a version of Node will then be downloaded. Set `check-latest` to `true` it you want the most up-to-date version of Node to always be used.
+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).

-> Setting `check-latest` to `true` has performance implications as downloading versions of Node is slower than using cached versions
+### Caching packages dependencies
+
+The action has a built-in functionality for caching and restoring npm/yarn dependencies. Supported package managers are `npm`, `yarn`. The `cache` input is optional, and caching is turned off by default.

 ```yaml
 steps:
@ -55,16 +42,31 @@ steps:
 - uses: actions/setup-node@v2
  with:
    node-version: '14'
-    check-latest: true
+    cache: 'npm'
 - run: npm install
 - run: npm test
 ```

-Matrix Testing:
+**Caching yarn dependencies:**
+```yaml
+steps:
+- uses: actions/checkout@v2
+- uses: actions/setup-node@v2
+  with:
+    node-version: '14'
+    cache: 'yarn'
+- run: yarn install
+- run: yarn test
+```
+Yarn caching handles both yarn versions: 1 or 2. 
+
+> At the moment, only `lock` files in the project root are supported.
+
+### Matrix Testing:
 ```yaml
 jobs:
  build:
-    runs-on: ubuntu-16.04
+    runs-on: ubuntu-latest
    strategy:
      matrix:
        node: [ '12', '14' ]
@ -78,119 +80,14 @@ jobs:
      - run: npm install
      - run: npm test
 ```
+## Advanced usage

-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).
-
-When using `architecture`, `node-version` must be provided as well.
-```yaml
-jobs:
-  build:
-    runs-on: windows-latest
-    name: Node sample
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-node@v2
-        with:
-          node-version: '14'
-          architecture: 'x64' # optional, x64 or x86. If not specified, x64 will be used by default
-      - run: npm install
-      - run: npm test
-```
-
-Multiple Operating Systems and Architectures:
-
-```yaml
-jobs:
-  build:
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os:
-          - ubuntu-latest
-          - macos-latest
-          - windows-latest
-        node_version:
-          - 10
-          - 12
-          - 14
-        architecture:
-          - x64
-        # an extra windows-x86 run:
-        include:
-          - os: windows-2016
-            node_version: 12
-            architecture: x86
-    name: Node ${{ matrix.node_version }} - ${{ matrix.architecture }} on ${{ matrix.os }}
-    steps:
-      - uses: actions/checkout@v2
-      - name: Setup node
-        uses: actions/setup-node@v2
-        with:
-          node-version: ${{ matrix.node_version }}
-          architecture: ${{ matrix.architecture }}
-      - run: npm install
-      - run: npm test
-```
-
-Publish to npmjs and GPR with npm:
-```yaml
-steps:
- uses: actions/checkout@v2
- uses: actions/setup-node@v2
-  with:
-    node-version: '10.x'
-    registry-url: 'https://registry.npmjs.org'
- run: npm install
- run: npm publish
-  env:
-    NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
- uses: actions/setup-node@v2
-  with:
-    registry-url: 'https://npm.pkg.github.com'
- run: npm publish
-  env:
-    NODE_AUTH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-```
-
-Publish to npmjs and GPR with yarn:
-```yaml
-steps:
- uses: actions/checkout@v2
- uses: actions/setup-node@v2
-  with:
-    node-version: '10.x'
-    registry-url: <registry url>
- run: yarn install
- run: yarn publish
-  env:
-    NODE_AUTH_TOKEN: ${{ secrets.YARN_TOKEN }}
- uses: actions/setup-node@v2
-  with:
-    registry-url: 'https://npm.pkg.github.com'
- run: yarn publish
-  env:
-    NODE_AUTH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-```
-
-Use private packages:
-```yaml
-steps:
- uses: actions/checkout@v2
- uses: actions/setup-node@v2
-  with:
-    node-version: '10.x'
-    registry-url: 'https://registry.npmjs.org'
-# Skip post-install scripts here, as a malicious
-# script could steal NODE_AUTH_TOKEN.
- run: npm install --ignore-scripts
-  env:
-    NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
-# `npm rebuild` will run all those post-install scripts for us.
- run: npm rebuild && npm run prepare --if-present
-```
-
+1. [Check latest version](docs/advanced-usage.md#check-latest-version)
+2. [Using different architectures](docs/advanced-usage.md#architecture)
+3. [Using multiple operating systems and architectures](docs/advanced-usage.md#multiple-operating-systems-and-architectures)
+4. [Publishing to npmjs and GPR with npm](docs/advanced-usage.md#publish-to-npmjs-and-gpr-with-npm)
+5. [Publishing to npmjs and GPR with yarn](docs/advanced-usage.md#publish-to-npmjs-and-gpr-with-yarn)
+6. [Using private packages](docs/advanced-usage.md#use-private-packages)

 # License

--- a/tests/cache-restore.test.ts
+++ b/tests/cache-restore.test.ts
@ -0,0 +1,168 @@
+import * as core from '@actions/core';
+import * as cache from '@actions/cache';
+import * as path from 'path';
+import * as glob from '@actions/glob';
+
+import * as utils from '../src/cache-utils';
+import {restoreCache} from '../src/cache-restore';
+
+describe('cache-restore', () => {
+  process.env['GITHUB_WORKSPACE'] = path.join(__dirname, 'data');
+  if (!process.env.RUNNER_OS) {
+    process.env.RUNNER_OS = 'Linux';
+  }
+  const platform = process.env.RUNNER_OS;
+  const commonPath = '/some/random/path';
+  const npmCachePath = `${commonPath}/npm`;
+  const yarn1CachePath = `${commonPath}/yarn1`;
+  const yarn2CachePath = `${commonPath}/yarn2`;
+  const yarnFileHash =
+    'b8a0bae5243251f7c07dd52d1f78ff78281dfefaded700a176261b6b54fa245b';
+  const npmFileHash =
+    'abf7c9b306a3149dcfba4673e2362755503bcceaab46f0e4e6fee0ade493e20c';
+  const cachesObject = {
+    [npmCachePath]: npmFileHash,
+    [yarn1CachePath]: yarnFileHash,
+    [yarn2CachePath]: yarnFileHash
+  };
+
+  function findCacheFolder(command: string) {
+    switch (command) {
+      case utils.supportedPackageManagers.npm.getCacheFolderCommand:
+        return npmCachePath;
+      case utils.supportedPackageManagers.yarn1.getCacheFolderCommand:
+        return yarn1CachePath;
+      case utils.supportedPackageManagers.yarn2.getCacheFolderCommand:
+        return yarn2CachePath;
+      default:
+        return 'packge/not/found';
+    }
+  }
+
+  let saveStateSpy: jest.SpyInstance;
+  let infoSpy: jest.SpyInstance;
+  let debugSpy: jest.SpyInstance;
+  let setOutputSpy: jest.SpyInstance;
+  let getCommandOutputSpy: jest.SpyInstance;
+  let restoreCacheSpy: jest.SpyInstance;
+  let hashFilesSpy: jest.SpyInstance;
+
+  beforeEach(() => {
+    // core
+    infoSpy = jest.spyOn(core, 'info');
+    infoSpy.mockImplementation(() => undefined);
+
+    debugSpy = jest.spyOn(core, 'debug');
+    debugSpy.mockImplementation(() => undefined);
+
+    setOutputSpy = jest.spyOn(core, 'setOutput');
+    setOutputSpy.mockImplementation(() => undefined);
+
+    saveStateSpy = jest.spyOn(core, 'saveState');
+    saveStateSpy.mockImplementation(() => undefined);
+
+    // glob
+    hashFilesSpy = jest.spyOn(glob, 'hashFiles');
+    hashFilesSpy.mockImplementation((pattern: string) => {
+      if (pattern.includes('package-lock.json')) {
+        return npmFileHash;
+      } else if (pattern.includes('yarn.lock')) {
+        return yarnFileHash;
+      } else {
+        return '';
+      }
+    });
+
+    // cache
+    restoreCacheSpy = jest.spyOn(cache, 'restoreCache');
+    restoreCacheSpy.mockImplementation(
+      (cachePaths: Array<string>, key: string) => {
+        if (!cachePaths || cachePaths.length === 0) {
+          return undefined;
+        }
+
+        const cachPath = cachePaths[0];
+        const fileHash = cachesObject[cachPath];
+
+        if (key.includes(fileHash)) {
+          return key;
+        }
+
+        return undefined;
+      }
+    );
+
+    // cache-utils
+    getCommandOutputSpy = jest.spyOn(utils, 'getCommandOutput');
+  });
+
+  describe('Validate provided package manager', () => {
+    it.each([['npm7'], ['npm6'], ['yarn1'], ['yarn2'], ['random']])(
+      'Throw an error because %s is not supported',
+      async packageManager => {
+        await expect(restoreCache(packageManager)).rejects.toThrowError(
+          `Caching for '${packageManager}' is not supported`
+        );
+      }
+    );
+  });
+
+  describe('Restore dependencies', () => {
+    it.each([
+      ['yarn', '2.1.2', yarnFileHash],
+      ['yarn', '1.2.3', yarnFileHash],
+      ['npm', '', npmFileHash]
+    ])(
+      'restored dependencies for %s',
+      async (packageManager, toolVersion, fileHash) => {
+        getCommandOutputSpy.mockImplementation((command: string) => {
+          if (command.includes('version')) {
+            return toolVersion;
+          } else {
+            return findCacheFolder(command);
+          }
+        });
+
+        await restoreCache(packageManager);
+        expect(hashFilesSpy).toHaveBeenCalled();
+        expect(infoSpy).toHaveBeenCalledWith(
+          `Cache restored from key: node-cache-${platform}-${packageManager}-${fileHash}`
+        );
+        expect(infoSpy).not.toHaveBeenCalledWith(
+          `${packageManager} cache is not found`
+        );
+      }
+    );
+  });
+
+  describe('Dependencies changed', () => {
+    it.each([
+      ['yarn', '2.1.2', yarnFileHash],
+      ['yarn', '1.2.3', yarnFileHash],
+      ['npm', '', npmFileHash]
+    ])(
+      'dependencies are changed %s',
+      async (packageManager, toolVersion, fileHash) => {
+        getCommandOutputSpy.mockImplementation((command: string) => {
+          if (command.includes('version')) {
+            return toolVersion;
+          } else {
+            return findCacheFolder(command);
+          }
+        });
+
+        restoreCacheSpy.mockImplementationOnce(() => undefined);
+        await restoreCache(packageManager);
+        expect(hashFilesSpy).toHaveBeenCalled();
+        expect(infoSpy).toHaveBeenCalledWith(
+          `${packageManager} cache is not found`
+        );
+      }
+    );
+  });
+
+  afterEach(() => {
+    jest.resetAllMocks();
+    jest.clearAllMocks();
+  });
+});
--- a/tests/cache-save.test.ts
+++ b/tests/cache-save.test.ts
@ -0,0 +1,248 @@
+import * as core from '@actions/core';
+import * as cache from '@actions/cache';
+import * as glob from '@actions/glob';
+import path from 'path';
+
+import * as utils from '../src/cache-utils';
+import {run} from '../src/cache-save';
+import {State} from '../src/constants';
+
+describe('run', () => {
+  const yarnFileHash =
+    'b8a0bae5243251f7c07dd52d1f78ff78281dfefaded700a176261b6b54fa245b';
+  const npmFileHash =
+    'abf7c9b306a3149dcfba4673e2362755503bcceaab46f0e4e6fee0ade493e20c';
+  const commonPath = '/some/random/path';
+  process.env['GITHUB_WORKSPACE'] = path.join(__dirname, 'data');
+
+  let inputs = {} as any;
+
+  let getInputSpy: jest.SpyInstance;
+  let infoSpy: jest.SpyInstance;
+  let warningSpy: jest.SpyInstance;
+  let debugSpy: jest.SpyInstance;
+  let setFailedSpy: jest.SpyInstance;
+  let getStateSpy: jest.SpyInstance;
+  let saveCacheSpy: jest.SpyInstance;
+  let getCommandOutputSpy: jest.SpyInstance;
+  let hashFilesSpy: jest.SpyInstance;
+
+  beforeEach(() => {
+    getInputSpy = jest.spyOn(core, 'getInput');
+    getInputSpy.mockImplementation((name: string) => inputs[name]);
+
+    infoSpy = jest.spyOn(core, 'info');
+    infoSpy.mockImplementation(() => undefined);
+
+    warningSpy = jest.spyOn(core, 'warning');
+    warningSpy.mockImplementation(() => undefined);
+
+    setFailedSpy = jest.spyOn(core, 'setFailed');
+    setFailedSpy.mockImplementation(() => undefined);
+
+    debugSpy = jest.spyOn(core, 'debug');
+    debugSpy.mockImplementation(() => undefined);
+
+    getStateSpy = jest.spyOn(core, 'getState');
+
+    // cache
+    saveCacheSpy = jest.spyOn(cache, 'saveCache');
+    saveCacheSpy.mockImplementation(() => undefined);
+
+    // glob
+    hashFilesSpy = jest.spyOn(glob, 'hashFiles');
+    hashFilesSpy.mockImplementation((pattern: string) => {
+      if (pattern.includes('package-lock.json')) {
+        return npmFileHash;
+      } else if (pattern.includes('yarn.lock')) {
+        return yarnFileHash;
+      } else {
+        return '';
+      }
+    });
+
+    // utils
+    getCommandOutputSpy = jest.spyOn(utils, 'getCommandOutput');
+  });
+
+  describe('Package manager validation', () => {
+    it('Package manager is not provided, skip caching', async () => {
+      inputs['cache'] = '';
+
+      await run();
+
+      expect(setFailedSpy).not.toHaveBeenCalled();
+      expect(infoSpy).not.toHaveBeenCalled();
+      expect(saveCacheSpy).not.toHaveBeenCalled();
+      expect(debugSpy).toHaveBeenLastCalledWith(
+        "Caching for '' is not supported"
+      );
+    });
+
+    it('Package manager is not valid, skip caching', async () => {
+      inputs['cache'] = 'yarn3';
+
+      await run();
+
+      expect(setFailedSpy).not.toHaveBeenCalled();
+      expect(infoSpy).not.toHaveBeenCalled();
+      expect(saveCacheSpy).not.toHaveBeenCalled();
+      expect(debugSpy).toHaveBeenLastCalledWith(
+        "Caching for 'yarn3' is not supported"
+      );
+    });
+  });
+
+  describe('Validate unchanged cache is not saved', () => {
+    it('should not save cache for yarn1', async () => {
+      inputs['cache'] = 'yarn';
+      getStateSpy.mockImplementation(() => yarnFileHash);
+      getCommandOutputSpy
+        .mockImplementationOnce(() => '1.2.3')
+        .mockImplementationOnce(() => `${commonPath}/yarn1`);
+
+      await run();
+
+      expect(getInputSpy).toHaveBeenCalled();
+      expect(getStateSpy).toHaveBeenCalledTimes(2);
+      expect(getCommandOutputSpy).toHaveBeenCalledTimes(2);
+      expect(debugSpy).toHaveBeenCalledWith(`yarn path is ${commonPath}/yarn1`);
+      expect(debugSpy).toHaveBeenCalledWith('Consumed yarn version is 1.2.3');
+      expect(infoSpy).toHaveBeenCalledWith(
+        `Cache hit occurred on the primary key ${yarnFileHash}, not saving cache.`
+      );
+      expect(setFailedSpy).not.toHaveBeenCalled();
+    });
+
+    it('should not save cache for yarn2', async () => {
+      inputs['cache'] = 'yarn';
+      getStateSpy.mockImplementation(() => yarnFileHash);
+      getCommandOutputSpy
+        .mockImplementationOnce(() => '2.2.3')
+        .mockImplementationOnce(() => `${commonPath}/yarn2`);
+
+      await run();
+
+      expect(getInputSpy).toHaveBeenCalled();
+      expect(getStateSpy).toHaveBeenCalledTimes(2);
+      expect(getCommandOutputSpy).toHaveBeenCalledTimes(2);
+      expect(debugSpy).toHaveBeenCalledWith(`yarn path is ${commonPath}/yarn2`);
+      expect(debugSpy).toHaveBeenCalledWith('Consumed yarn version is 2.2.3');
+      expect(infoSpy).toHaveBeenCalledWith(
+        `Cache hit occurred on the primary key ${yarnFileHash}, not saving cache.`
+      );
+      expect(setFailedSpy).not.toHaveBeenCalled();
+    });
+
+    it('should not save cache for npm', async () => {
+      inputs['cache'] = 'npm';
+      getStateSpy.mockImplementation(() => npmFileHash);
+      getCommandOutputSpy.mockImplementationOnce(() => `${commonPath}/npm`);
+
+      await run();
+
+      expect(getInputSpy).toHaveBeenCalled();
+      expect(getStateSpy).toHaveBeenCalledTimes(2);
+      expect(getCommandOutputSpy).toHaveBeenCalledTimes(1);
+      expect(debugSpy).toHaveBeenCalledWith(`npm path is ${commonPath}/npm`);
+      expect(infoSpy).toHaveBeenCalledWith(
+        `Cache hit occurred on the primary key ${npmFileHash}, not saving cache.`
+      );
+      expect(setFailedSpy).not.toHaveBeenCalled();
+    });
+  });
+
+  describe('action saves the cache', () => {
+    it('saves cache from yarn 1', async () => {
+      inputs['cache'] = 'yarn';
+      getStateSpy.mockImplementation((name: string) => {
+        if (name === State.CacheMatchedKey) {
+          return yarnFileHash;
+        } else {
+          return npmFileHash;
+        }
+      });
+      getCommandOutputSpy
+        .mockImplementationOnce(() => '1.2.3')
+        .mockImplementationOnce(() => `${commonPath}/yarn1`);
+
+      await run();
+
+      expect(getInputSpy).toHaveBeenCalled();
+      expect(getStateSpy).toHaveBeenCalledTimes(2);
+      expect(getCommandOutputSpy).toHaveBeenCalledTimes(2);
+      expect(debugSpy).toHaveBeenCalledWith(`yarn path is ${commonPath}/yarn1`);
+      expect(debugSpy).toHaveBeenCalledWith('Consumed yarn version is 1.2.3');
+      expect(infoSpy).not.toHaveBeenCalledWith(
+        `Cache hit occurred on the primary key ${yarnFileHash}, not saving cache.`
+      );
+      expect(saveCacheSpy).toHaveBeenCalled();
+      expect(infoSpy).toHaveBeenLastCalledWith(
+        `Cache saved with the key: ${npmFileHash}`
+      );
+      expect(setFailedSpy).not.toHaveBeenCalled();
+    });
+
+    it('saves cache from yarn 2', async () => {
+      inputs['cache'] = 'yarn';
+      getStateSpy.mockImplementation((name: string) => {
+        if (name === State.CacheMatchedKey) {
+          return yarnFileHash;
+        } else {
+          return npmFileHash;
+        }
+      });
+      getCommandOutputSpy
+        .mockImplementationOnce(() => '2.2.3')
+        .mockImplementationOnce(() => `${commonPath}/yarn2`);
+
+      await run();
+
+      expect(getInputSpy).toHaveBeenCalled();
+      expect(getStateSpy).toHaveBeenCalledTimes(2);
+      expect(getCommandOutputSpy).toHaveBeenCalledTimes(2);
+      expect(debugSpy).toHaveBeenCalledWith(`yarn path is ${commonPath}/yarn2`);
+      expect(debugSpy).toHaveBeenCalledWith('Consumed yarn version is 2.2.3');
+      expect(infoSpy).not.toHaveBeenCalledWith(
+        `Cache hit occurred on the primary key ${yarnFileHash}, not saving cache.`
+      );
+      expect(saveCacheSpy).toHaveBeenCalled();
+      expect(infoSpy).toHaveBeenLastCalledWith(
+        `Cache saved with the key: ${npmFileHash}`
+      );
+      expect(setFailedSpy).not.toHaveBeenCalled();
+    });
+
+    it('saves cache from npm', async () => {
+      inputs['cache'] = 'npm';
+      getStateSpy.mockImplementation((name: string) => {
+        if (name === State.CacheMatchedKey) {
+          return npmFileHash;
+        } else {
+          return yarnFileHash;
+        }
+      });
+      getCommandOutputSpy.mockImplementationOnce(() => `${commonPath}/npm`);
+
+      await run();
+
+      expect(getInputSpy).toHaveBeenCalled();
+      expect(getStateSpy).toHaveBeenCalledTimes(2);
+      expect(getCommandOutputSpy).toHaveBeenCalledTimes(1);
+      expect(debugSpy).toHaveBeenCalledWith(`npm path is ${commonPath}/npm`);
+      expect(infoSpy).not.toHaveBeenCalledWith(
+        `Cache hit occurred on the primary key ${npmFileHash}, not saving cache.`
+      );
+      expect(saveCacheSpy).toHaveBeenCalled();
+      expect(infoSpy).toHaveBeenLastCalledWith(
+        `Cache saved with the key: ${yarnFileHash}`
+      );
+      expect(setFailedSpy).not.toHaveBeenCalled();
+    });
+  });
+
+  afterEach(() => {
+    jest.resetAllMocks();
+    jest.clearAllMocks();
+  });
+});
--- a/tests/cache-utils.test.ts
+++ b/tests/cache-utils.test.ts
@ -0,0 +1,53 @@
+import * as core from '@actions/core';
+import path from 'path';
+import * as utils from '../src/cache-utils';
+import {PackageManagerInfo} from '../src/cache-utils';
+
+describe('cache-utils', () => {
+  const commonPath = '/some/random/path';
+  const versionYarn1 = '1.2.3';
+  const versionYarn2 = '2.3.4';
+
+  let debugSpy: jest.SpyInstance;
+  let getCommandOutputSpy: jest.SpyInstance;
+
+  function getPackagePath(name: string) {
+    if (name === utils.supportedPackageManagers.npm.getCacheFolderCommand) {
+      return `${commonPath}/npm`;
+    } else {
+      if (name === utils.supportedPackageManagers.yarn1.getCacheFolderCommand) {
+        return `${commonPath}/yarn1`;
+      } else {
+        return `${commonPath}/yarn2`;
+      }
+    }
+  }
+
+  beforeEach(() => {
+    process.env['GITHUB_WORKSPACE'] = path.join(__dirname, 'data');
+    debugSpy = jest.spyOn(core, 'debug');
+    debugSpy.mockImplementation(msg => {});
+
+    getCommandOutputSpy = jest.spyOn(utils, 'getCommandOutput');
+  });
+
+  describe('getPackageManagerInfo', () => {
+    it.each<[string, PackageManagerInfo | null]>([
+      ['npm', utils.supportedPackageManagers.npm],
+      ['yarn', utils.supportedPackageManagers.yarn1],
+      ['yarn1', null],
+      ['yarn2', null],
+      ['npm7', null]
+    ])('getPackageManagerInfo for %s is %o', async (packageManager, result) => {
+      getCommandOutputSpy.mockImplementationOnce(() => versionYarn1);
+      await expect(utils.getPackageManagerInfo(packageManager)).resolves.toBe(
+        result
+      );
+    });
+  });
+
+  afterEach(() => {
+    jest.resetAllMocks();
+    jest.clearAllMocks();
+  });
+});
--- a/tests/data/package-lock.json
+++ b/tests/data/package-lock.json
@ -0,0 +1,395 @@
+{
+    "name": "test",
+    "version": "1.0.0",
+    "lockfileVersion": 1,
+    "requires": true,
+    "dependencies": {
+      "accepts": {
+        "version": "1.3.7",
+        "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.7.tgz",
+        "integrity": "sha512-Il80Qs2WjYlJIBNzNkK6KYqlVMTbZLXgHx2oT0pU/fjRHyEp+PEfEPY0R3WCwAGVOtauxh1hOxNgIf5bv7dQpA==",
+        "requires": {
+          "mime-types": "~2.1.24",
+          "negotiator": "0.6.2"
+        }
+      },
+      "array-flatten": {
+        "version": "1.1.1",
+        "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
+        "integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI="
+      },
+      "body-parser": {
+        "version": "1.19.0",
+        "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.19.0.tgz",
+        "integrity": "sha512-dhEPs72UPbDnAQJ9ZKMNTP6ptJaionhP5cBb541nXPlW60Jepo9RV/a4fX4XWW9CuFNK22krhrj1+rgzifNCsw==",
+        "requires": {
+          "bytes": "3.1.0",
+          "content-type": "~1.0.4",
+          "debug": "2.6.9",
+          "depd": "~1.1.2",
+          "http-errors": "1.7.2",
+          "iconv-lite": "0.4.24",
+          "on-finished": "~2.3.0",
+          "qs": "6.7.0",
+          "raw-body": "2.4.0",
+          "type-is": "~1.6.17"
+        }
+      },
+      "bytes": {
+        "version": "3.1.0",
+        "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.1.0.tgz",
+        "integrity": "sha512-zauLjrfCG+xvoyaqLoV8bLVXXNGC4JqlxFCutSDWA6fJrTo2ZuvLYTqZ7aHBLZSMOopbzwv8f+wZcVzfVTI2Dg=="
+      },
+      "content-disposition": {
+        "version": "0.5.3",
+        "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-0.5.3.tgz",
+        "integrity": "sha512-ExO0774ikEObIAEV9kDo50o+79VCUdEB6n6lzKgGwupcVeRlhrj3qGAfwq8G6uBJjkqLrhT0qEYFcWng8z1z0g==",
+        "requires": {
+          "safe-buffer": "5.1.2"
+        }
+      },
+      "content-type": {
+        "version": "1.0.4",
+        "resolved": "https://registry.npmjs.org/content-type/-/content-type-1.0.4.tgz",
+        "integrity": "sha512-hIP3EEPs8tB9AT1L+NUqtwOAps4mk2Zob89MWXMHjHWg9milF/j4osnnQLXBCBFBk/tvIG/tUc9mOUJiPBhPXA=="
+      },
+      "cookie": {
+        "version": "0.4.0",
+        "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.4.0.tgz",
+        "integrity": "sha512-+Hp8fLp57wnUSt0tY0tHEXh4voZRDnoIrZPqlo3DPiI4y9lwg/jqx+1Om94/W6ZaPDOUbnjOt/99w66zk+l1Xg=="
+      },
+      "cookie-signature": {
+        "version": "1.0.6",
+        "resolved": "https://registry.npmjs.org/cookie-signature/-/cookie-signature-1.0.6.tgz",
+        "integrity": "sha1-4wOogrNCzD7oylE6eZmXNNqzriw="
+      },
+      "debug": {
+        "version": "2.6.9",
+        "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+        "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
+        "requires": {
+          "ms": "2.0.0"
+        }
+      },
+      "depd": {
+        "version": "1.1.2",
+        "resolved": "https://registry.npmjs.org/depd/-/depd-1.1.2.tgz",
+        "integrity": "sha1-m81S4UwJd2PnSbJ0xDRu0uVgtak="
+      },
+      "destroy": {
+        "version": "1.0.4",
+        "resolved": "https://registry.npmjs.org/destroy/-/destroy-1.0.4.tgz",
+        "integrity": "sha1-l4hXRCxEdJ5CBmE+N5RiBYJqvYA="
+      },
+      "ee-first": {
+        "version": "1.1.1",
+        "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
+        "integrity": "sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0="
+      },
+      "encodeurl": {
+        "version": "1.0.2",
+        "resolved": "https://registry.npmjs.org/encodeurl/-/encodeurl-1.0.2.tgz",
+        "integrity": "sha1-rT/0yG7C0CkyL1oCw6mmBslbP1k="
+      },
+      "escape-html": {
+        "version": "1.0.3",
+        "resolved": "https://registry.npmjs.org/escape-html/-/escape-html-1.0.3.tgz",
+        "integrity": "sha1-Aljq5NPQwJdN4cFpGI7wBR0dGYg="
+      },
+      "etag": {
+        "version": "1.8.1",
+        "resolved": "https://registry.npmjs.org/etag/-/etag-1.8.1.tgz",
+        "integrity": "sha1-Qa4u62XvpiJorr/qg6x9eSmbCIc="
+      },
+      "express": {
+        "version": "4.17.1",
+        "resolved": "https://registry.npmjs.org/express/-/express-4.17.1.tgz",
+        "integrity": "sha512-mHJ9O79RqluphRrcw2X/GTh3k9tVv8YcoyY4Kkh4WDMUYKRZUq0h1o0w2rrrxBqM7VoeUVqgb27xlEMXTnYt4g==",
+        "requires": {
+          "accepts": "~1.3.7",
+          "array-flatten": "1.1.1",
+          "body-parser": "1.19.0",
+          "content-disposition": "0.5.3",
+          "content-type": "~1.0.4",
+          "cookie": "0.4.0",
+          "cookie-signature": "1.0.6",
+          "debug": "2.6.9",
+          "depd": "~1.1.2",
+          "encodeurl": "~1.0.2",
+          "escape-html": "~1.0.3",
+          "etag": "~1.8.1",
+          "finalhandler": "~1.1.2",
+          "fresh": "0.5.2",
+          "merge-descriptors": "1.0.1",
+          "methods": "~1.1.2",
+          "on-finished": "~2.3.0",
+          "parseurl": "~1.3.3",
+          "path-to-regexp": "0.1.7",
+          "proxy-addr": "~2.0.5",
+          "qs": "6.7.0",
+          "range-parser": "~1.2.1",
+          "safe-buffer": "5.1.2",
+          "send": "0.17.1",
+          "serve-static": "1.14.1",
+          "setprototypeof": "1.1.1",
+          "statuses": "~1.5.0",
+          "type-is": "~1.6.18",
+          "utils-merge": "1.0.1",
+          "vary": "~1.1.2"
+        }
+      },
+      "finalhandler": {
+        "version": "1.1.2",
+        "resolved": "https://registry.npmjs.org/finalhandler/-/finalhandler-1.1.2.tgz",
+        "integrity": "sha512-aAWcW57uxVNrQZqFXjITpW3sIUQmHGG3qSb9mUah9MgMC4NeWhNOlNjXEYq3HjRAvL6arUviZGGJsBg6z0zsWA==",
+        "requires": {
+          "debug": "2.6.9",
+          "encodeurl": "~1.0.2",
+          "escape-html": "~1.0.3",
+          "on-finished": "~2.3.0",
+          "parseurl": "~1.3.3",
+          "statuses": "~1.5.0",
+          "unpipe": "~1.0.0"
+        }
+      },
+      "forwarded": {
+        "version": "0.1.2",
+        "resolved": "https://registry.npmjs.org/forwarded/-/forwarded-0.1.2.tgz",
+        "integrity": "sha1-mMI9qxF1ZXuMBXPozszZGw/xjIQ="
+      },
+      "fresh": {
+        "version": "0.5.2",
+        "resolved": "https://registry.npmjs.org/fresh/-/fresh-0.5.2.tgz",
+        "integrity": "sha1-PYyt2Q2XZWn6g1qx+OSyOhBWBac="
+      },
+      "http-errors": {
+        "version": "1.7.2",
+        "resolved": "https://registry.npmjs.org/http-errors/-/http-errors-1.7.2.tgz",
+        "integrity": "sha512-uUQBt3H/cSIVfch6i1EuPNy/YsRSOUBXTVfZ+yR7Zjez3qjBz6i9+i4zjNaoqcoFVI4lQJ5plg63TvGfRSDCRg==",
+        "requires": {
+          "depd": "~1.1.2",
+          "inherits": "2.0.3",
+          "setprototypeof": "1.1.1",
+          "statuses": ">= 1.5.0 < 2",
+          "toidentifier": "1.0.0"
+        }
+      },
+      "iconv-lite": {
+        "version": "0.4.24",
+        "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.4.24.tgz",
+        "integrity": "sha512-v3MXnZAcvnywkTUEZomIActle7RXXeedOR31wwl7VlyoXO4Qi9arvSenNQWne1TcRwhCL1HwLI21bEqdpj8/rA==",
+        "requires": {
+          "safer-buffer": ">= 2.1.2 < 3"
+        }
+      },
+      "inherits": {
+        "version": "2.0.3",
+        "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.3.tgz",
+        "integrity": "sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4="
+      },
+      "ipaddr.js": {
+        "version": "1.9.1",
+        "resolved": "https://registry.npmjs.org/ipaddr.js/-/ipaddr.js-1.9.1.tgz",
+        "integrity": "sha512-0KI/607xoxSToH7GjN1FfSbLoU0+btTicjsQSWQlh/hZykN8KpmMf7uYwPW3R+akZ6R/w18ZlXSHBYXiYUPO3g=="
+      },
+      "lru-cache": {
+        "version": "6.0.0",
+        "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-6.0.0.tgz",
+        "integrity": "sha512-Jo6dJ04CmSjuznwJSS3pUeWmd/H0ffTlkXXgwZi+eq1UCmqQwCh+eLsYOYCwY991i2Fah4h1BEMCx4qThGbsiA==",
+        "requires": {
+          "yallist": "^4.0.0"
+        }
+      },
+      "media-typer": {
+        "version": "0.3.0",
+        "resolved": "https://registry.npmjs.org/media-typer/-/media-typer-0.3.0.tgz",
+        "integrity": "sha1-hxDXrwqmJvj/+hzgAWhUUmMlV0g="
+      },
+      "merge-descriptors": {
+        "version": "1.0.1",
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+        "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.30.tgz",
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+        "requires": {
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+        }
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+        "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
+        "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
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+        "integrity": "sha1-IPEzZIGwg811M3mSoWlxqi2QaUc=",
+        "requires": {
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+        }
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+      },
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+        "version": "0.1.7",
+        "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-0.1.7.tgz",
+        "integrity": "sha1-32BBeABfUi8V60SQ5yR6G/qmf4w="
+      },
+      "proxy-addr": {
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+        "resolved": "https://registry.npmjs.org/proxy-addr/-/proxy-addr-2.0.6.tgz",
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+        "requires": {
+          "forwarded": "~0.1.2",
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+        }
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+        "requires": {
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+          "http-errors": "1.7.2",
+          "iconv-lite": "0.4.24",
+          "unpipe": "1.0.0"
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+      },
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+        "resolved": "https://registry.npmjs.org/safer-buffer/-/safer-buffer-2.1.2.tgz",
+        "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg=="
+      },
+      "semver": {
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+        "resolved": "https://registry.npmjs.org/semver/-/semver-7.3.5.tgz",
+        "integrity": "sha512-PoeGJYh8HK4BTO/a9Tf6ZG3veo/A7ZVsYrSA6J8ny9nb3B1VrpkuN+z9OE5wfE5p6H4LchYZsegiQgbJD94ZFQ==",
+        "requires": {
+          "lru-cache": "^6.0.0"
+        }
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+      "send": {
+        "version": "0.17.1",
+        "resolved": "https://registry.npmjs.org/send/-/send-0.17.1.tgz",
+        "integrity": "sha512-BsVKsiGcQMFwT8UxypobUKyv7irCNRHk1T0G680vk88yf6LBByGcZJOTJCrTP2xVN6yI+XjPJcNuE3V4fT9sAg==",
+        "requires": {
+          "debug": "2.6.9",
+          "depd": "~1.1.2",
+          "destroy": "~1.0.4",
+          "encodeurl": "~1.0.2",
+          "escape-html": "~1.0.3",
+          "etag": "~1.8.1",
+          "fresh": "0.5.2",
+          "http-errors": "~1.7.2",
+          "mime": "1.6.0",
+          "ms": "2.1.1",
+          "on-finished": "~2.3.0",
+          "range-parser": "~1.2.1",
+          "statuses": "~1.5.0"
+        },
+        "dependencies": {
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+            "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.1.tgz",
+            "integrity": "sha512-tgp+dl5cGk28utYktBsrFqA7HKgrhgPsg6Z/EfhWI4gl1Hwq8B/GmY/0oXZ6nF8hDVesS/FpnYaD/kOWhYQvyg=="
+          }
+        }
+      },
+      "serve-static": {
+        "version": "1.14.1",
+        "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.14.1.tgz",
+        "integrity": "sha512-JMrvUwE54emCYWlTI+hGrGv5I8dEwmco/00EvkzIIsR7MqrHonbD9pO2MOfFnpFntl7ecpZs+3mW+XbQZu9QCg==",
+        "requires": {
+          "encodeurl": "~1.0.2",
+          "escape-html": "~1.0.3",
+          "parseurl": "~1.3.3",
+          "send": "0.17.1"
+        }
+      },
+      "setprototypeof": {
+        "version": "1.1.1",
+        "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.1.1.tgz",
+        "integrity": "sha512-JvdAWfbXeIGaZ9cILp38HntZSFSo3mWg6xGcJJsd+d4aRMOqauag1C63dJfDw7OaMYwEbHMOxEZ1lqVRYP2OAw=="
+      },
+      "statuses": {
+        "version": "1.5.0",
+        "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.5.0.tgz",
+        "integrity": "sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow="
+      },
+      "toidentifier": {
+        "version": "1.0.0",
+        "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.0.tgz",
+        "integrity": "sha512-yaOH/Pk/VEhBWWTlhI+qXxDFXlejDGcQipMlyxda9nthulaxLZUNcUqFxokp0vcYnvteJln5FNQDRrxj3YcbVw=="
+      },
+      "type-is": {
+        "version": "1.6.18",
+        "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.18.tgz",
+        "integrity": "sha512-TkRKr9sUTxEH8MdfuCSP7VizJyzRNMjj2J2do2Jr3Kym598JVdEksuzPQCnlFPW4ky9Q+iA+ma9BGm06XQBy8g==",
+        "requires": {
+          "media-typer": "0.3.0",
+          "mime-types": "~2.1.24"
+        }
+      },
+      "unpipe": {
+        "version": "1.0.0",
+        "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
+        "integrity": "sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw="
+      },
+      "utils-merge": {
+        "version": "1.0.1",
+        "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
+        "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
+      },
+      "vary": {
+        "version": "1.1.2",
+        "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
+        "integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw="
+      },
+      "yallist": {
+        "version": "4.0.0",
+        "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz",
+        "integrity": "sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A=="
+      }
+    }
+  }
--- a/tests/data/yarn.lock
+++ b/tests/data/yarn.lock
@ -0,0 +1,368 @@
+# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+# yarn lockfile v1
+
+
+accepts@~1.3.7:
+  version "1.3.7"
+  resolved "https://registry.yarnpkg.com/accepts/-/accepts-1.3.7.tgz#531bc726517a3b2b41f850021c6cc15eaab507cd"
+  integrity sha512-Il80Qs2WjYlJIBNzNkK6KYqlVMTbZLXgHx2oT0pU/fjRHyEp+PEfEPY0R3WCwAGVOtauxh1hOxNgIf5bv7dQpA==
+  dependencies:
+    mime-types "~2.1.24"
+    negotiator "0.6.2"
+
+array-flatten@1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/array-flatten/-/array-flatten-1.1.1.tgz#9a5f699051b1e7073328f2a008968b64ea2955d2"
+  integrity sha1-ml9pkFGx5wczKPKgCJaLZOopVdI=
+
+body-parser@1.19.0:
+  version "1.19.0"
+  resolved "https://registry.yarnpkg.com/body-parser/-/body-parser-1.19.0.tgz#96b2709e57c9c4e09a6fd66a8fd979844f69f08a"
+  integrity sha512-dhEPs72UPbDnAQJ9ZKMNTP6ptJaionhP5cBb541nXPlW60Jepo9RV/a4fX4XWW9CuFNK22krhrj1+rgzifNCsw==
+  dependencies:
+    bytes "3.1.0"
+    content-type "~1.0.4"
+    debug "2.6.9"
+    depd "~1.1.2"
+    http-errors "1.7.2"
+    iconv-lite "0.4.24"
+    on-finished "~2.3.0"
+    qs "6.7.0"
+    raw-body "2.4.0"
+    type-is "~1.6.17"
+
+bytes@3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/bytes/-/bytes-3.1.0.tgz#f6cf7933a360e0588fa9fde85651cdc7f805d1f6"
+  integrity sha512-zauLjrfCG+xvoyaqLoV8bLVXXNGC4JqlxFCutSDWA6fJrTo2ZuvLYTqZ7aHBLZSMOopbzwv8f+wZcVzfVTI2Dg==
+
+content-disposition@0.5.3:
+  version "0.5.3"
+  resolved "https://registry.yarnpkg.com/content-disposition/-/content-disposition-0.5.3.tgz#e130caf7e7279087c5616c2007d0485698984fbd"
+  integrity sha512-ExO0774ikEObIAEV9kDo50o+79VCUdEB6n6lzKgGwupcVeRlhrj3qGAfwq8G6uBJjkqLrhT0qEYFcWng8z1z0g==
+  dependencies:
+    safe-buffer "5.1.2"
+
+content-type@~1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/content-type/-/content-type-1.0.4.tgz#e138cc75e040c727b1966fe5e5f8c9aee256fe3b"
+  integrity sha512-hIP3EEPs8tB9AT1L+NUqtwOAps4mk2Zob89MWXMHjHWg9milF/j4osnnQLXBCBFBk/tvIG/tUc9mOUJiPBhPXA==
+
+cookie-signature@1.0.6:
+  version "1.0.6"
+  resolved "https://registry.yarnpkg.com/cookie-signature/-/cookie-signature-1.0.6.tgz#e303a882b342cc3ee8ca513a79999734dab3ae2c"
+  integrity sha1-4wOogrNCzD7oylE6eZmXNNqzriw=
+
+cookie@0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/cookie/-/cookie-0.4.0.tgz#beb437e7022b3b6d49019d088665303ebe9c14ba"
+  integrity sha512-+Hp8fLp57wnUSt0tY0tHEXh4voZRDnoIrZPqlo3DPiI4y9lwg/jqx+1Om94/W6ZaPDOUbnjOt/99w66zk+l1Xg==
+
+debug@2.6.9:
+  version "2.6.9"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
+  integrity sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==
+  dependencies:
+    ms "2.0.0"
+
+depd@~1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/depd/-/depd-1.1.2.tgz#9bcd52e14c097763e749b274c4346ed2e560b5a9"
+  integrity sha1-m81S4UwJd2PnSbJ0xDRu0uVgtak=
+
+destroy@~1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/destroy/-/destroy-1.0.4.tgz#978857442c44749e4206613e37946205826abd80"
+  integrity sha1-l4hXRCxEdJ5CBmE+N5RiBYJqvYA=
+
+ee-first@1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/ee-first/-/ee-first-1.1.1.tgz#590c61156b0ae2f4f0255732a158b266bc56b21d"
+  integrity sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0=
+
+encodeurl@~1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/encodeurl/-/encodeurl-1.0.2.tgz#ad3ff4c86ec2d029322f5a02c3a9a606c95b3f59"
+  integrity sha1-rT/0yG7C0CkyL1oCw6mmBslbP1k=
+
+escape-html@~1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/escape-html/-/escape-html-1.0.3.tgz#0258eae4d3d0c0974de1c169188ef0051d1d1988"
+  integrity sha1-Aljq5NPQwJdN4cFpGI7wBR0dGYg=
+
+etag@~1.8.1:
+  version "1.8.1"
+  resolved "https://registry.yarnpkg.com/etag/-/etag-1.8.1.tgz#41ae2eeb65efa62268aebfea83ac7d79299b0887"
+  integrity sha1-Qa4u62XvpiJorr/qg6x9eSmbCIc=
+
+express@^4.17.1:
+  version "4.17.1"
+  resolved "https://registry.yarnpkg.com/express/-/express-4.17.1.tgz#4491fc38605cf51f8629d39c2b5d026f98a4c134"
+  integrity sha512-mHJ9O79RqluphRrcw2X/GTh3k9tVv8YcoyY4Kkh4WDMUYKRZUq0h1o0w2rrrxBqM7VoeUVqgb27xlEMXTnYt4g==
+  dependencies:
+    accepts "~1.3.7"
+    array-flatten "1.1.1"
+    body-parser "1.19.0"
+    content-disposition "0.5.3"
+    content-type "~1.0.4"
+    cookie "0.4.0"
+    cookie-signature "1.0.6"
+    debug "2.6.9"
+    depd "~1.1.2"
+    encodeurl "~1.0.2"
+    escape-html "~1.0.3"
+    etag "~1.8.1"
+    finalhandler "~1.1.2"
+    fresh "0.5.2"
+    merge-descriptors "1.0.1"
+    methods "~1.1.2"
+    on-finished "~2.3.0"
+    parseurl "~1.3.3"
+    path-to-regexp "0.1.7"
+    proxy-addr "~2.0.5"
+    qs "6.7.0"
+    range-parser "~1.2.1"
+    safe-buffer "5.1.2"
+    send "0.17.1"
+    serve-static "1.14.1"
+    setprototypeof "1.1.1"
+    statuses "~1.5.0"
+    type-is "~1.6.18"
+    utils-merge "1.0.1"
+    vary "~1.1.2"
+
+finalhandler@~1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/finalhandler/-/finalhandler-1.1.2.tgz#b7e7d000ffd11938d0fdb053506f6ebabe9f587d"
+  integrity sha512-aAWcW57uxVNrQZqFXjITpW3sIUQmHGG3qSb9mUah9MgMC4NeWhNOlNjXEYq3HjRAvL6arUviZGGJsBg6z0zsWA==
+  dependencies:
+    debug "2.6.9"
+    encodeurl "~1.0.2"
+    escape-html "~1.0.3"
+    on-finished "~2.3.0"
+    parseurl "~1.3.3"
+    statuses "~1.5.0"
+    unpipe "~1.0.0"
+
+forwarded@~0.1.2:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/forwarded/-/forwarded-0.1.2.tgz#98c23dab1175657b8c0573e8ceccd91b0ff18c84"
+  integrity sha1-mMI9qxF1ZXuMBXPozszZGw/xjIQ=
+
+fresh@0.5.2:
+  version "0.5.2"
+  resolved "https://registry.yarnpkg.com/fresh/-/fresh-0.5.2.tgz#3d8cadd90d976569fa835ab1f8e4b23a105605a7"
+  integrity sha1-PYyt2Q2XZWn6g1qx+OSyOhBWBac=
+
+http-errors@1.7.2:
+  version "1.7.2"
+  resolved "https://registry.yarnpkg.com/http-errors/-/http-errors-1.7.2.tgz#4f5029cf13239f31036e5b2e55292bcfbcc85c8f"
+  integrity sha512-uUQBt3H/cSIVfch6i1EuPNy/YsRSOUBXTVfZ+yR7Zjez3qjBz6i9+i4zjNaoqcoFVI4lQJ5plg63TvGfRSDCRg==
+  dependencies:
+    depd "~1.1.2"
+    inherits "2.0.3"
+    setprototypeof "1.1.1"
+    statuses ">= 1.5.0 < 2"
+    toidentifier "1.0.0"
+
+http-errors@~1.7.2:
+  version "1.7.3"
+  resolved "https://registry.yarnpkg.com/http-errors/-/http-errors-1.7.3.tgz#6c619e4f9c60308c38519498c14fbb10aacebb06"
+  integrity sha512-ZTTX0MWrsQ2ZAhA1cejAwDLycFsd7I7nVtnkT3Ol0aqodaKW+0CTZDQ1uBv5whptCnc8e8HeRRJxRs0kmm/Qfw==
+  dependencies:
+    depd "~1.1.2"
+    inherits "2.0.4"
+    setprototypeof "1.1.1"
+    statuses ">= 1.5.0 < 2"
+    toidentifier "1.0.0"
+
+iconv-lite@0.4.24:
+  version "0.4.24"
+  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.24.tgz#2022b4b25fbddc21d2f524974a474aafe733908b"
+  integrity sha512-v3MXnZAcvnywkTUEZomIActle7RXXeedOR31wwl7VlyoXO4Qi9arvSenNQWne1TcRwhCL1HwLI21bEqdpj8/rA==
+  dependencies:
+    safer-buffer ">= 2.1.2 < 3"
+
+inherits@2.0.3:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
+  integrity sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4=
+
+inherits@2.0.4:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.4.tgz#0fa2c64f932917c3433a0ded55363aae37416b7c"
+  integrity sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==
+
+ipaddr.js@1.9.1:
+  version "1.9.1"
+  resolved "https://registry.yarnpkg.com/ipaddr.js/-/ipaddr.js-1.9.1.tgz#bff38543eeb8984825079ff3a2a8e6cbd46781b3"
+  integrity sha512-0KI/607xoxSToH7GjN1FfSbLoU0+btTicjsQSWQlh/hZykN8KpmMf7uYwPW3R+akZ6R/w18ZlXSHBYXiYUPO3g==
+
+media-typer@0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/media-typer/-/media-typer-0.3.0.tgz#8710d7af0aa626f8fffa1ce00168545263255748"
+  integrity sha1-hxDXrwqmJvj/+hzgAWhUUmMlV0g=
+
+merge-descriptors@1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/merge-descriptors/-/merge-descriptors-1.0.1.tgz#b00aaa556dd8b44568150ec9d1b953f3f90cbb61"
+  integrity sha1-sAqqVW3YtEVoFQ7J0blT8/kMu2E=
+
+methods@~1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/methods/-/methods-1.1.2.tgz#5529a4d67654134edcc5266656835b0f851afcee"
+  integrity sha1-VSmk1nZUE07cxSZmVoNbD4Ua/O4=
+
+mime-db@1.47.0:
+  version "1.47.0"
+  resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.47.0.tgz#8cb313e59965d3c05cfbf898915a267af46a335c"
+  integrity sha512-QBmA/G2y+IfeS4oktet3qRZ+P5kPhCKRXxXnQEudYqUaEioAU1/Lq2us3D/t1Jfo4hE9REQPrbB7K5sOczJVIw==
+
+mime-types@~2.1.24:
+  version "2.1.30"
+  resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.30.tgz#6e7be8b4c479825f85ed6326695db73f9305d62d"
+  integrity sha512-crmjA4bLtR8m9qLpHvgxSChT+XoSlZi8J4n/aIdn3z92e/U47Z0V/yl+Wh9W046GgFVAmoNR/fmdbZYcSSIUeg==
+  dependencies:
+    mime-db "1.47.0"
+
+mime@1.6.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/mime/-/mime-1.6.0.tgz#32cd9e5c64553bd58d19a568af452acff04981b1"
+  integrity sha512-x0Vn8spI+wuJ1O6S7gnbaQg8Pxh4NNHb7KSINmEWKiPE4RKOplvijn+NkmYmmRgP68mc70j2EbeTFRsrswaQeg==
+
+ms@2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
+  integrity sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=
+
+ms@2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.1.tgz#30a5864eb3ebb0a66f2ebe6d727af06a09d86e0a"
+  integrity sha512-tgp+dl5cGk28utYktBsrFqA7HKgrhgPsg6Z/EfhWI4gl1Hwq8B/GmY/0oXZ6nF8hDVesS/FpnYaD/kOWhYQvyg==
+
+negotiator@0.6.2:
+  version "0.6.2"
+  resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.2.tgz#feacf7ccf525a77ae9634436a64883ffeca346fb"
+  integrity sha512-hZXc7K2e+PgeI1eDBe/10Ard4ekbfrrqG8Ep+8Jmf4JID2bNg7NvCPOZN+kfF574pFQI7mum2AUqDidoKqcTOw==
+
+on-finished@~2.3.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/on-finished/-/on-finished-2.3.0.tgz#20f1336481b083cd75337992a16971aa2d906947"
+  integrity sha1-IPEzZIGwg811M3mSoWlxqi2QaUc=
+  dependencies:
+    ee-first "1.1.1"
+
+parseurl@~1.3.3:
+  version "1.3.3"
+  resolved "https://registry.yarnpkg.com/parseurl/-/parseurl-1.3.3.tgz#9da19e7bee8d12dff0513ed5b76957793bc2e8d4"
+  integrity sha512-CiyeOxFT/JZyN5m0z9PfXw4SCBJ6Sygz1Dpl0wqjlhDEGGBP1GnsUVEL0p63hoG1fcj3fHynXi9NYO4nWOL+qQ==
+
+path-to-regexp@0.1.7:
+  version "0.1.7"
+  resolved "https://registry.yarnpkg.com/path-to-regexp/-/path-to-regexp-0.1.7.tgz#df604178005f522f15eb4490e7247a1bfaa67f8c"
+  integrity sha1-32BBeABfUi8V60SQ5yR6G/qmf4w=
+
+proxy-addr@~2.0.5:
+  version "2.0.6"
+  resolved "https://registry.yarnpkg.com/proxy-addr/-/proxy-addr-2.0.6.tgz#fdc2336505447d3f2f2c638ed272caf614bbb2bf"
+  integrity sha512-dh/frvCBVmSsDYzw6n926jv974gddhkFPfiN8hPOi30Wax25QZyZEGveluCgliBnqmuM+UJmBErbAUFIoDbjOw==
+  dependencies:
+    forwarded "~0.1.2"
+    ipaddr.js "1.9.1"
+
+qs@6.7.0:
+  version "6.7.0"
+  resolved "https://registry.yarnpkg.com/qs/-/qs-6.7.0.tgz#41dc1a015e3d581f1621776be31afb2876a9b1bc"
+  integrity sha512-VCdBRNFTX1fyE7Nb6FYoURo/SPe62QCaAyzJvUjwRaIsc+NePBEniHlvxFmmX56+HZphIGtV0XeCirBtpDrTyQ==
+
+range-parser@~1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/range-parser/-/range-parser-1.2.1.tgz#3cf37023d199e1c24d1a55b84800c2f3e6468031"
+  integrity sha512-Hrgsx+orqoygnmhFbKaHE6c296J+HTAQXoxEF6gNupROmmGJRoyzfG3ccAveqCBrwr/2yxQ5BVd/GTl5agOwSg==
+
+raw-body@2.4.0:
+  version "2.4.0"
+  resolved "https://registry.yarnpkg.com/raw-body/-/raw-body-2.4.0.tgz#a1ce6fb9c9bc356ca52e89256ab59059e13d0332"
+  integrity sha512-4Oz8DUIwdvoa5qMJelxipzi/iJIi40O5cGV1wNYp5hvZP8ZN0T+jiNkL0QepXs+EsQ9XJ8ipEDoiH70ySUJP3Q==
+  dependencies:
+    bytes "3.1.0"
+    http-errors "1.7.2"
+    iconv-lite "0.4.24"
+    unpipe "1.0.0"
+
+safe-buffer@5.1.2:
+  version "5.1.2"
+  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
+  integrity sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==
+
+"safer-buffer@>= 2.1.2 < 3":
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/safer-buffer/-/safer-buffer-2.1.2.tgz#44fa161b0187b9549dd84bb91802f9bd8385cd6a"
+  integrity sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==
+
+send@0.17.1:
+  version "0.17.1"
+  resolved "https://registry.yarnpkg.com/send/-/send-0.17.1.tgz#c1d8b059f7900f7466dd4938bdc44e11ddb376c8"
+  integrity sha512-BsVKsiGcQMFwT8UxypobUKyv7irCNRHk1T0G680vk88yf6LBByGcZJOTJCrTP2xVN6yI+XjPJcNuE3V4fT9sAg==
+  dependencies:
+    debug "2.6.9"
+    depd "~1.1.2"
+    destroy "~1.0.4"
+    encodeurl "~1.0.2"
+    escape-html "~1.0.3"
+    etag "~1.8.1"
+    fresh "0.5.2"
+    http-errors "~1.7.2"
+    mime "1.6.0"
+    ms "2.1.1"
+    on-finished "~2.3.0"
+    range-parser "~1.2.1"
+    statuses "~1.5.0"
+
+serve-static@1.14.1:
+  version "1.14.1"
+  resolved "https://registry.yarnpkg.com/serve-static/-/serve-static-1.14.1.tgz#666e636dc4f010f7ef29970a88a674320898b2f9"
+  integrity sha512-JMrvUwE54emCYWlTI+hGrGv5I8dEwmco/00EvkzIIsR7MqrHonbD9pO2MOfFnpFntl7ecpZs+3mW+XbQZu9QCg==
+  dependencies:
+    encodeurl "~1.0.2"
+    escape-html "~1.0.3"
+    parseurl "~1.3.3"
+    send "0.17.1"
+
+setprototypeof@1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/setprototypeof/-/setprototypeof-1.1.1.tgz#7e95acb24aa92f5885e0abef5ba131330d4ae683"
+  integrity sha512-JvdAWfbXeIGaZ9cILp38HntZSFSo3mWg6xGcJJsd+d4aRMOqauag1C63dJfDw7OaMYwEbHMOxEZ1lqVRYP2OAw==
+
+"statuses@>= 1.5.0 < 2", statuses@~1.5.0:
+  version "1.5.0"
+  resolved "https://registry.yarnpkg.com/statuses/-/statuses-1.5.0.tgz#161c7dac177659fd9811f43771fa99381478628c"
+  integrity sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow=
+
+toidentifier@1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/toidentifier/-/toidentifier-1.0.0.tgz#7e1be3470f1e77948bc43d94a3c8f4d7752ba553"
+  integrity sha512-yaOH/Pk/VEhBWWTlhI+qXxDFXlejDGcQipMlyxda9nthulaxLZUNcUqFxokp0vcYnvteJln5FNQDRrxj3YcbVw==
+
+type-is@~1.6.17, type-is@~1.6.18:
+  version "1.6.18"
+  resolved "https://registry.yarnpkg.com/type-is/-/type-is-1.6.18.tgz#4e552cd05df09467dcbc4ef739de89f2cf37c131"
+  integrity sha512-TkRKr9sUTxEH8MdfuCSP7VizJyzRNMjj2J2do2Jr3Kym598JVdEksuzPQCnlFPW4ky9Q+iA+ma9BGm06XQBy8g==
+  dependencies:
+    media-typer "0.3.0"
+    mime-types "~2.1.24"
+
+unpipe@1.0.0, unpipe@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/unpipe/-/unpipe-1.0.0.tgz#b2bf4ee8514aae6165b4817829d21b2ef49904ec"
+  integrity sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw=
+
+utils-merge@1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/utils-merge/-/utils-merge-1.0.1.tgz#9f95710f50a267947b2ccc124741c1028427e713"
+  integrity sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM=
+
+vary@~1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/vary/-/vary-1.1.2.tgz#2299f02c6ded30d4a5961b0b9f74524a18f634fc"
+  integrity sha1-IpnwLG3tMNSllhsLn3RSShj2NPw=
--- a/action.yml
+++ b/action.yml
@ -19,6 +19,8 @@ inputs:
  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 }}
+  cache:
+    description: 'Used to specify a package manager for caching in the default directory. Supported values: npm, yarn'
 # TODO: add input to control forcing to pull from cloud or dist. 
 #       escape valve for someone having issues or needing the absolute latest which isn't cached yet
 # Deprecated option, do not use. Will not be supported after October 1, 2019
@ -27,4 +29,6 @@ inputs:
    deprecationMessage: 'The version property will not be supported after October 1, 2019. Use node-version instead'
 runs:
  using: 'node12'
-  main: 'dist/index.js'
+  main: 'dist/setup/index.js'
+  post: 'dist/cache-save/index.js'
+  post-if: success()
--- a/dist/cache-save/index.js
+++ b/dist/cache-save/index.js
--- a/dist/index.js
+++ b/dist/index.js
--- a/dist/setup/index.js
+++ b/dist/setup/index.js
--- a/docs/advanced-usage.md
+++ b/docs/advanced-usage.md
@ -0,0 +1,132 @@
+# Advanced usage
+
+### Check latest version:
+
+The `check-latest` flag defaults to `false`. When set to `false`, 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/). Use the default or set `check-latest` to `false` if you prefer stability and if you want to ensure a specific version of Node.js is always used.
+
+If `check-latest` is set to `true`, the action first checks if the cached version is the latest one. If the locally cached version is not the most up-to-date, a version of Node.js will then be downloaded. Set `check-latest` to `true` it you want the most up-to-date version of Node.js to always be used.
+
+> Setting `check-latest` to `true` has performance implications as downloading versions of Node is slower than using cached versions.
+
+```yaml
+steps:
+- uses: actions/checkout@v2
+- uses: actions/setup-node@v2
+  with:
+    node-version: '14'
+    check-latest: true
+- run: npm install
+- run: npm test
+```
+
+### Architecture:
+
+You can use any of the [supported operating systems](https://docs.github.com/en/actions/reference/virtual-environments-for-github-hosted-runners), and the compatible `architecture` can be selected using `architecture`. Values are `x86`, `x64`, `arm64`, `armv6l`, `armv7l`, `ppc64le`, `s390x` (not all of the architectures are available on all platforms).
+
+When using `architecture`, `node-version` must be provided as well.
+```yaml
+jobs:
+  build:
+    runs-on: windows-latest
+    name: Node sample
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v2
+        with:
+          node-version: '14'
+          architecture: 'x64' # optional, x64 or x86. If not specified, x64 will be used by default
+      - run: npm install
+      - run: npm test
+```
+
+### Multiple Operating Systems and Architectures:
+
+```yaml
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os:
+          - ubuntu-latest
+          - macos-latest
+          - windows-latest
+        node_version:
+          - 10
+          - 12
+          - 14
+        architecture:
+          - x64
+        # an extra windows-x86 run:
+        include:
+          - os: windows-2016
+            node_version: 12
+            architecture: x86
+    name: Node ${{ matrix.node_version }} - ${{ matrix.architecture }} on ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup node
+        uses: actions/setup-node@v2
+        with:
+          node-version: ${{ matrix.node_version }}
+          architecture: ${{ matrix.architecture }}
+      - run: npm install
+      - run: npm test
+```
+
+### Publish to npmjs and GPR with npm:
+```yaml
+steps:
+- uses: actions/checkout@v2
+- uses: actions/setup-node@v2
+  with:
+    node-version: '14.x'
+    registry-url: 'https://registry.npmjs.org'
+- run: npm install
+- run: npm publish
+  env:
+    NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+- uses: actions/setup-node@v2
+  with:
+    registry-url: 'https://npm.pkg.github.com'
+- run: npm publish
+  env:
+    NODE_AUTH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+```
+
+### Publish to npmjs and GPR with yarn:
+```yaml
+steps:
+- uses: actions/checkout@v2
+- uses: actions/setup-node@v2
+  with:
+    node-version: '14.x'
+    registry-url: <registry url>
+- run: yarn install
+- run: yarn publish
+  env:
+    NODE_AUTH_TOKEN: ${{ secrets.YARN_TOKEN }}
+- uses: actions/setup-node@v2
+  with:
+    registry-url: 'https://npm.pkg.github.com'
+- run: yarn publish
+  env:
+    NODE_AUTH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+```
+
+### Use private packages:
+```yaml
+steps:
+- uses: actions/checkout@v2
+- uses: actions/setup-node@v2
+  with:
+    node-version: '14.x'
+    registry-url: 'https://registry.npmjs.org'
+# Skip post-install scripts here, as a malicious
+# script could steal NODE_AUTH_TOKEN.
+- run: npm install --ignore-scripts
+  env:
+    NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+# `npm rebuild` will run all those post-install scripts for us.
+- run: npm rebuild && npm run prepare --if-present
+```
--- a/package-lock.json
+++ b/package-lock.json
@ -4,15 +4,55 @@
  "lockfileVersion": 1,
  "requires": true,
  "dependencies": {
+    "@actions/cache": {
+      "version": "1.0.7",
+      "resolved": "https://registry.npmjs.org/@actions/cache/-/cache-1.0.7.tgz",
+      "integrity": "sha512-MY69kxuubqUFq84pFlu8m6Poxl5sR/xyhpC4JEvno7Yg9ASYdGizEmKgt0m8ovewpYKf15UAOcSC0hzS+DuosA==",
+      "requires": {
+        "@actions/core": "^1.2.6",
+        "@actions/exec": "^1.0.1",
+        "@actions/glob": "^0.1.0",
+        "@actions/http-client": "^1.0.9",
+        "@actions/io": "^1.0.1",
+        "@azure/ms-rest-js": "^2.0.7",
+        "@azure/storage-blob": "^12.1.2",
+        "semver": "^6.1.0",
+        "uuid": "^3.3.3"
+      },
+      "dependencies": {
+        "@actions/glob": {
+          "version": "0.1.2",
+          "resolved": "https://registry.npmjs.org/@actions/glob/-/glob-0.1.2.tgz",
+          "integrity": "sha512-SclLR7Ia5sEqjkJTPs7Sd86maMDw43p769YxBOxvPvEWuPEhpAnBsQfENOpXjFYMmhCqd127bmf+YdvJqVqR4A==",
+          "requires": {
+            "@actions/core": "^1.2.6",
+            "minimatch": "^3.0.4"
+          }
+        },
+        "@actions/http-client": {
+          "version": "1.0.11",
+          "resolved": "https://registry.npmjs.org/@actions/http-client/-/http-client-1.0.11.tgz",
+          "integrity": "sha512-VRYHGQV1rqnROJqdMvGUbY/Kn8vriQe/F9HR2AlYHzmKuM/p3kjNuXhmdBfcVgsvRWTz5C5XW5xvndZrVBuAYg==",
+          "requires": {
+            "tunnel": "0.0.6"
+          }
+        },
+        "uuid": {
+          "version": "3.4.0",
+          "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.4.0.tgz",
+          "integrity": "sha512-HjSDRw6gZE5JMggctHBcjVak08+KEVhSIiDzFnT9S9aegmp85S/bReBVTb4QTFaRNptJ9kuYaNhnbNEOkbKb/A=="
+        }
+      }
+    },
    "@actions/core": {
      "version": "1.2.6",
      "resolved": "https://registry.npmjs.org/@actions/core/-/core-1.2.6.tgz",
      "integrity": "sha512-ZQYitnqiyBc3D+k7LsgSBmMDVkOVidaagDG7j3fOym77jNunWRuYx7VSHa9GNfFZh+zh61xsCjRj4JxMZlDqTA=="
    },
    "@actions/exec": {
-      "version": "1.0.4",
-      "resolved": "https://registry.npmjs.org/@actions/exec/-/exec-1.0.4.tgz",
-      "integrity": "sha512-4DPChWow9yc9W3WqEbUj8Nr86xkpyE29ZzWjXucHItclLbEW6jr80Zx4nqv18QL6KK65+cifiQZXvnqgTV6oHw==",
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/@actions/exec/-/exec-1.1.0.tgz",
+      "integrity": "sha512-LImpN9AY0J1R1mEYJjVJfSZWU4zYOlEcwSTgPve1rFQqK5AwrEs6uWW5Rv70gbDIQIAUwI86z6B+9mPK4w9Sbg==",
      "requires": {
        "@actions/io": "^1.0.1"
      }
@ -26,6 +66,15 @@
        "@octokit/rest": "^16.15.0"
      }
    },
+    "@actions/glob": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/@actions/glob/-/glob-0.2.0.tgz",
+      "integrity": "sha512-mqE2a7I66kxcvsdwxs/filQwZsq25IfktMaviGfDB51v6Q3bvxnV7mFsZnvYtLhqGZbPxwBnH8AD3UYaOWb//w==",
+      "requires": {
+        "@actions/core": "^1.2.6",
+        "minimatch": "^3.0.4"
+      }
+    },
    "@actions/http-client": {
      "version": "1.0.6",
      "resolved": "https://registry.npmjs.org/@actions/http-client/-/http-client-1.0.6.tgz",
@ -67,6 +116,215 @@
        }
      }
    },
+    "@azure/abort-controller": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/@azure/abort-controller/-/abort-controller-1.0.4.tgz",
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@ -1313,6 +1571,16 @@
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+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==",
      "dev": true
    },
    "lodash.get": {
@ -6469,14 +6783,12 @@
    "mime-db": {
      "version": "1.44.0",
      "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.44.0.tgz",
-      "integrity": "sha512-/NOTfLrsPBVeH7YtFPgsVWveuL+4SjjYxaQ1xtM1KMFj7HdxlBlxeyNLzhyJVx7r4rZGJAZ/6lkKCitSc/Nmpg==",
-      "dev": true
+      "integrity": "sha512-/NOTfLrsPBVeH7YtFPgsVWveuL+4SjjYxaQ1xtM1KMFj7HdxlBlxeyNLzhyJVx7r4rZGJAZ/6lkKCitSc/Nmpg=="
    },
    "mime-types": {
      "version": "2.1.27",
      "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.27.tgz",
      "integrity": "sha512-JIhqnCasI9yD+SsmkquHBxTSEuZdQX5BuQnS2Vc7puQQQ+8yiP5AY5uWhpdv4YL4VM5c6iliiYWPgJ/nJQLp7w==",
-      "dev": true,
      "requires": {
        "mime-db": "1.44.0"
      }
@ -6485,7 +6797,6 @@
      "version": "3.0.4",
      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
      "integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==",
-      "dev": true,
      "requires": {
        "brace-expansion": "^1.1.7"
      }
@ -6578,9 +6889,9 @@
      "integrity": "sha512-1nh45deeb5olNY7eX82BkPO7SSxR5SSYJiPTrTdFUVYwAl8CKMA5N9PjTYkHiRjisVcxcQ1HXdLhx2qxxJzLNQ=="
    },
    "node-fetch": {
-      "version": "2.6.0",
-      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.6.0.tgz",
-      "integrity": "sha512-8dG4H5ujfvFiqDmVu9fQ5bOHUC15JMjMY/Zumv26oOvvVJjM67KF8koCWIabKQ1GJIa9r2mMZscBq/TbdOcmNA=="
+      "version": "2.6.1",
+      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.6.1.tgz",
+      "integrity": "sha512-V4aYg89jEoVRxRb2fJdAg8FHvI7cEyYdVAh94HH0UIK8oJxUfkjlDQN9RbMx+bEjP7+ggMiFRprSti032Oipxw=="
    },
    "node-int64": {
      "version": "0.4.0",
@ -6929,6 +7240,11 @@
        "react-is": "^16.8.4"
      }
    },
+    "process": {
+      "version": "0.11.10",
+      "resolved": "https://registry.npmjs.org/process/-/process-0.11.10.tgz",
+      "integrity": "sha1-czIwDoQBYb2j5podHZGn1LwW8YI="
+    },
    "process-nextick-args": {
      "version": "2.0.1",
      "resolved": "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-2.0.1.tgz",
@ -6948,8 +7264,7 @@
    "psl": {
      "version": "1.8.0",
      "resolved": "https://registry.npmjs.org/psl/-/psl-1.8.0.tgz",
-      "integrity": "sha512-RIdOzyoavK+hA18OGGWDqUTsCLhtA7IcZ/6NCs4fFJaHBDab+pDDmDIByWFRQJq2Cd7r1OoQxBGKOaztq+hjIQ==",
-      "dev": true
+      "integrity": "sha512-RIdOzyoavK+hA18OGGWDqUTsCLhtA7IcZ/6NCs4fFJaHBDab+pDDmDIByWFRQJq2Cd7r1OoQxBGKOaztq+hjIQ=="
    },
    "pump": {
      "version": "3.0.0",
@ -6963,8 +7278,7 @@
    "punycode": {
      "version": "2.1.1",
      "resolved": "https://registry.npmjs.org/punycode/-/punycode-2.1.1.tgz",
-      "integrity": "sha512-XRsRjdf+j5ml+y/6GKHPZbrF/8p2Yga0JPtdqTIY2Xe5ohJPD9saDJJLPvp9+NSBprVvevdXZybnj2cv8OEd0A==",
-      "dev": true
+      "integrity": "sha512-XRsRjdf+j5ml+y/6GKHPZbrF/8p2Yga0JPtdqTIY2Xe5ohJPD9saDJJLPvp9+NSBprVvevdXZybnj2cv8OEd0A=="
    },
    "qs": {
      "version": "6.5.2",
@ -7205,8 +7519,7 @@
    "sax": {
      "version": "1.2.4",
      "resolved": "https://registry.npmjs.org/sax/-/sax-1.2.4.tgz",
-      "integrity": "sha512-NqVDv9TpANUjFm0N8uM5GxL36UgKi9/atZw+x7YFnQ8ckwFGKrl4xX4yWtrey3UJm5nP1kUbnYgLopqWNSRhWw==",
-      "dev": true
+      "integrity": "sha512-NqVDv9TpANUjFm0N8uM5GxL36UgKi9/atZw+x7YFnQ8ckwFGKrl4xX4yWtrey3UJm5nP1kUbnYgLopqWNSRhWw=="
    },
    "semver": {
      "version": "6.1.2",
@ -7737,6 +8050,11 @@
        }
      }
    },
+    "tslib": {
+      "version": "1.14.1",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.14.1.tgz",
+      "integrity": "sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg=="
+    },
    "tunnel": {
      "version": "0.0.6",
      "resolved": "https://registry.npmjs.org/tunnel/-/tunnel-0.0.6.tgz",
@ -7792,6 +8110,11 @@
        "os-name": "^3.0.0"
      }
    },
+    "universalify": {
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/universalify/-/universalify-0.1.2.tgz",
+      "integrity": "sha512-rBJeI5CXAlmy1pV+617WB9J63U6XcazHHF2f2dbJix4XzpUF0RS3Zbj0FGIOCAva5P/d/GBOYaACQ1w+0azUkg=="
+    },
    "unset-value": {
      "version": "1.0.0",
      "resolved": "https://registry.npmjs.org/unset-value/-/unset-value-1.0.0.tgz",
@ -8001,9 +8324,9 @@
      }
    },
    "ws": {
-      "version": "5.2.2",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-5.2.2.tgz",
-      "integrity": "sha512-jaHFD6PFv6UgoIVda6qZllptQsMlDEJkTQcybzzXDYM1XO9Y8em691FGMPmM46WGyLU4z9KMgQN+qrux/nhlHA==",
+      "version": "5.2.3",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-5.2.3.tgz",
+      "integrity": "sha512-jZArVERrMsKUatIdnLzqvcfydI85dvd/Fp1u/VOpfdDWQ4c9qWXe+VIeAbQ5FrDwciAkr+lzofXLz3Kuf26AOA==",
      "dev": true,
      "requires": {
        "async-limiter": "~1.0.0"
@ -8015,10 +8338,24 @@
      "integrity": "sha512-A5CUptxDsvxKJEU3yO6DuWBSJz/qizqzJKOMIfUJHETbBw/sFaDxgd6fxm1ewUaM0jZ444Fc5vC5ROYurg/4Pw==",
      "dev": true
    },
+    "xml2js": {
+      "version": "0.4.23",
+      "resolved": "https://registry.npmjs.org/xml2js/-/xml2js-0.4.23.tgz",
+      "integrity": "sha512-ySPiMjM0+pLDftHgXY4By0uswI3SPKLDw/i3UXbnO8M/p28zqexCUoPmQFrYD+/1BzhGJSs2i1ERWKJAtiLrug==",
+      "requires": {
+        "sax": ">=0.6.0",
+        "xmlbuilder": "~11.0.0"
+      }
+    },
+    "xmlbuilder": {
+      "version": "11.0.1",
+      "resolved": "https://registry.npmjs.org/xmlbuilder/-/xmlbuilder-11.0.1.tgz",
+      "integrity": "sha512-fDlsI/kFEx7gLvbecc0/ohLG50fugQp8ryHzMTuW9vSa1GJ0XYWKnhsUx7oie3G98+r56aTQIUB4kht42R3JvA=="
+    },
    "y18n": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.0.tgz",
-      "integrity": "sha512-r9S/ZyXu/Xu9q1tYlpsLIsa3EeLXXk0VwlxqTcFRfg9EhMW+17kbt9G0NrgCmhGb5vT2hyhJZLfDGx+7+5Uj/w==",
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.1.tgz",
+      "integrity": "sha512-wNcy4NvjMYL8gogWWYAO7ZFWFfHcbdbE57tZO8e4cbpj8tfUcwrwqSl3ad8HxpYWCdXcJUCeKKZS62Av1affwQ==",
      "dev": true
    },
    "yargs": {
--- a/package.json
+++ b/package.json
@ -5,7 +5,7 @@
  "description": "setup node action",
  "main": "lib/setup-node.js",
  "scripts": {
-    "build": "tsc && ncc build",
+    "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",
    "test": "jest",
@ -23,9 +23,11 @@
  "author": "GitHub",
  "license": "MIT",
  "dependencies": {
+    "@actions/cache": "^1.0.7",
    "@actions/core": "^1.2.6",
-    "@actions/exec": "^1.0.3",
+    "@actions/exec": "^1.1.0",
    "@actions/github": "^1.1.0",
+    "@actions/glob": "^0.2.0",
    "@actions/http-client": "^1.0.6",
    "@actions/io": "^1.0.2",
    "@actions/tool-cache": "^1.5.4",
--- a/src/cache-restore.ts
+++ b/src/cache-restore.ts
@ -0,0 +1,57 @@
+import * as cache from '@actions/cache';
+import * as core from '@actions/core';
+import * as glob from '@actions/glob';
+import path from 'path';
+import fs from 'fs';
+
+import {State, Outputs} from './constants';
+import {
+  getCacheDirectoryPath,
+  getPackageManagerInfo,
+  PackageManagerInfo
+} from './cache-utils';
+
+export const restoreCache = async (packageManager: string) => {
+  const packageManagerInfo = await getPackageManagerInfo(packageManager);
+  if (!packageManagerInfo) {
+    throw new Error(`Caching for '${packageManager}' is not supported`);
+  }
+  const platform = process.env.RUNNER_OS;
+
+  const cachePath = await getCacheDirectoryPath(
+    packageManagerInfo,
+    packageManager
+  );
+  const lockFilePath = findLockFile(packageManagerInfo);
+  const fileHash = await glob.hashFiles(lockFilePath);
+
+  const primaryKey = `node-cache-${platform}-${packageManager}-${fileHash}`;
+  core.debug(`primary key is ${primaryKey}`);
+
+  core.saveState(State.CachePrimaryKey, primaryKey);
+
+  const cacheKey = await cache.restoreCache([cachePath], primaryKey);
+
+  if (!cacheKey) {
+    core.info(`${packageManager} cache is not found`);
+    return;
+  }
+
+  core.saveState(State.CacheMatchedKey, cacheKey);
+  core.info(`Cache restored from key: ${cacheKey}`);
+};
+
+const findLockFile = (packageManager: PackageManagerInfo) => {
+  let lockFiles = packageManager.lockFilePatterns;
+  const workspace = process.env.GITHUB_WORKSPACE!;
+  const rootContent = fs.readdirSync(workspace);
+
+  const lockFile = lockFiles.find(item => rootContent.includes(item));
+  if (!lockFile) {
+    throw new Error(
+      `Dependencies lock file is not found in ${workspace}. Supported file patterns: ${lockFiles.toString()}`
+    );
+  }
+
+  return path.join(workspace, lockFile);
+};
--- a/src/cache-save.ts
+++ b/src/cache-save.ts
@ -0,0 +1,50 @@
+import * as core from '@actions/core';
+import * as cache from '@actions/cache';
+import {State} from './constants';
+import {getCacheDirectoryPath, getPackageManagerInfo} from './cache-utils';
+
+export async function run() {
+  try {
+    const cacheLock = core.getInput('cache');
+    await cachePackages(cacheLock);
+  } catch (error) {
+    core.setFailed(error.message);
+  }
+}
+
+const cachePackages = async (packageManager: string) => {
+  const state = core.getState(State.CacheMatchedKey);
+  const primaryKey = core.getState(State.CachePrimaryKey);
+
+  const packageManagerInfo = await getPackageManagerInfo(packageManager);
+  if (!packageManagerInfo) {
+    core.debug(`Caching for '${packageManager}' is not supported`);
+    return;
+  }
+
+  const cachePath = await getCacheDirectoryPath(
+    packageManagerInfo,
+    packageManager
+  );
+  if (primaryKey === state) {
+    core.info(
+      `Cache hit occurred on the primary key ${primaryKey}, not saving cache.`
+    );
+    return;
+  }
+
+  try {
+    await cache.saveCache([cachePath], primaryKey);
+    core.info(`Cache saved with the key: ${primaryKey}`);
+  } catch (error) {
+    if (error.name === cache.ValidationError.name) {
+      throw error;
+    } else if (error.name === cache.ReserveCacheError.name) {
+      core.info(error.message);
+    } else {
+      core.warning(`${error.message}`);
+    }
+  }
+};
+
+run();
--- a/src/cache-utils.ts
+++ b/src/cache-utils.ts
@ -0,0 +1,84 @@
+import * as core from '@actions/core';
+import * as exec from '@actions/exec';
+
+type SupportedPackageManagers = {
+  [prop: string]: PackageManagerInfo;
+};
+
+export interface PackageManagerInfo {
+  lockFilePatterns: Array<string>;
+  getCacheFolderCommand: string;
+}
+
+export const supportedPackageManagers: SupportedPackageManagers = {
+  npm: {
+    lockFilePatterns: ['package-lock.json', 'yarn.lock'],
+    getCacheFolderCommand: 'npm config get cache'
+  },
+  yarn1: {
+    lockFilePatterns: ['yarn.lock'],
+    getCacheFolderCommand: 'yarn cache dir'
+  },
+  yarn2: {
+    lockFilePatterns: ['yarn.lock'],
+    getCacheFolderCommand: 'yarn config get cacheFolder'
+  }
+};
+
+export const getCommandOutput = async (toolCommand: string) => {
+  const {stdout, stderr, exitCode} = await exec.getExecOutput(toolCommand);
+
+  if (stderr) {
+    throw new Error(stderr);
+  }
+
+  return stdout;
+};
+
+const getPackageManagerVersion = async (
+  packageManager: string,
+  command: string
+) => {
+  const stdOut = await getCommandOutput(`${packageManager} ${command}`);
+
+  if (!stdOut) {
+    throw new Error(`Could not retrieve version of ${packageManager}`);
+  }
+
+  return stdOut;
+};
+
+export const getPackageManagerInfo = async (packageManager: string) => {
+  if (packageManager === 'npm') {
+    return supportedPackageManagers.npm;
+  } else if (packageManager === 'yarn') {
+    const yarnVersion = await getPackageManagerVersion('yarn', '--version');
+
+    core.debug(`Consumed yarn version is ${yarnVersion}`);
+
+    if (yarnVersion.startsWith('1.')) {
+      return supportedPackageManagers.yarn1;
+    } else {
+      return supportedPackageManagers.yarn2;
+    }
+  } else {
+    return null;
+  }
+};
+
+export const getCacheDirectoryPath = async (
+  packageManagerInfo: PackageManagerInfo,
+  packageManager: string
+) => {
+  const stdOut = await getCommandOutput(
+    packageManagerInfo.getCacheFolderCommand
+  );
+
+  if (!stdOut) {
+    throw new Error(`Could not get cache folder path for ${packageManager}`);
+  }
+
+  core.debug(`${packageManager} path is ${stdOut}`);
+
+  return stdOut;
+};
--- a/src/constants.ts
+++ b/src/constants.ts
@ -0,0 +1,13 @@
+export enum LockType {
+  Npm = 'npm',
+  Yarn = 'yarn'
+}
+
+export enum State {
+  CachePrimaryKey = 'CACHE_KEY',
+  CacheMatchedKey = 'CACHE_RESULT'
+}
+
+export enum Outputs {
+  CacheHit = 'cache-hit'
+}
--- a/src/installer.ts
+++ b/src/installer.ts
@ -150,7 +150,7 @@ export async function getNode(
    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');
+      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'));
--- a/src/main.ts
+++ b/src/main.ts
@ -2,6 +2,7 @@ import * as core from '@actions/core';
 import * as installer from './installer';
 import * as auth from './authutil';
 import * as path from 'path';
+import {restoreCache} from './cache-restore';
 import {URL} from 'url';
 import os = require('os');

@ -17,6 +18,7 @@ export async function run() {
    }

    let arch = core.getInput('architecture');
+    const cache = core.getInput('cache');

    // if architecture supplied but node-version is not
    // if we don't throw a warning, the already installed x64 node will be used which is not probably what user meant.
@ -45,7 +47,14 @@ export async function run() {
      auth.configAuthentication(registryUrl, alwaysAuth);
    }

-    const matchersPath = path.join(__dirname, '..', '.github');
+    if (cache) {
+      if (isGhes()) {
+        throw new Error('Caching is not supported on GHES');
+      }
+      await restoreCache(cache);
+    }
+
+    const matchersPath = path.join(__dirname, '../..', '.github');
    core.info(`##[add-matcher]${path.join(matchersPath, 'tsc.json')}`);
    core.info(
      `##[add-matcher]${path.join(matchersPath, 'eslint-stylish.json')}`