Fix json5 package version

* Release support for cross-os caching as opt-in feature
Add documentation for cross-os caching

* Apply suggestions from code review

Co-authored-by: Lovepreet Singh <pdotl@github.com>

* Address review comments

Co-authored-by: Lovepreet Singh <pdotl@github.com>

.devcontainer/devcontainer.json

@@ -0,0 +1,14 @@
+{
+	"name": "Node.js & TypeScript",
+	"image": "mcr.microsoft.com/devcontainers/typescript-node:16-bullseye",
+	// Features to add to the dev container. More info: https://containers.dev/implementors/features.
+	// "features": {},
+	// Use 'forwardPorts' to make a list of ports inside the container available locally.
+	// "forwardPorts": [],
+	// Use 'postCreateCommand' to run commands after the container is created.
+	"postCreateCommand": "npm install"
+	// Configure tool-specific properties.
+	// "customizations": {},
+	// Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
+	// "remoteUser": "root"
+}

.eslintrc.json

@@ -9,15 +9,14 @@
     "plugin:import/errors",
     "plugin:import/warnings",
     "plugin:import/typescript",
-    "plugin:prettier/recommended",
-    "prettier/@typescript-eslint"
+    "plugin:prettier/recommended"
   ],
   "plugins": ["@typescript-eslint", "simple-import-sort", "jest"],
   "rules": {
     "import/first": "error",
     "import/newline-after-import": "error",
     "import/no-duplicates": "error",
-    "simple-import-sort/sort": "error",
+    "simple-import-sort/imports": "error",
     "sort-imports": "off"
   }
 }

.gitattributes

@@ -1 +1,2 @@
-.licenses/** -diff linguist-generated=true
+.licenses/** -diff linguist-generated=true
+* text=auto eol=lf

.github/pull_request_template.md

@@ -0,0 +1,32 @@
+<!--- Provide a general summary of your changes in the Title above -->
+
+## Description
+<!--- Describe your changes in detail -->
+
+## Motivation and Context
+<!--- Why is this change required? What problem does it solve? -->
+<!--- If it fixes an open issue, please link to the issue here. -->
+
+## How Has This Been Tested?
+<!--- Please describe in detail how you tested your changes. -->
+<!--- Include details of your testing environment, and the tests you ran to -->
+<!--- see how your change affects other areas of the code, etc. -->
+
+## Screenshots (if appropriate):
+
+## Types of changes
+<!--- What types of changes does your code introduce? Put an `x` in all the boxes that apply: -->
+- [ ] Bug fix (non-breaking change which fixes an issue)
+- [ ] New feature (non-breaking change which adds functionality)
+- [ ] Breaking change (fix or feature that would cause existing functionality to change)
+- [ ] Documentation (add or update README or docs)
+
+## Checklist:
+<!--- Go over all the following points, and put an `x` in all the boxes that apply. -->
+<!--- If you're unsure about any of these, don't hesitate to ask. We're here to help! -->
+- [ ] My code follows the code style of this project.
+- [ ] My change requires a change to the documentation.
+- [ ] I have updated the documentation accordingly.
+- [ ] I have read the **CONTRIBUTING** document.
+- [ ] I have added tests to cover my changes.
+- [ ] All new and existing tests passed.

.github/workflows/add-reviewer-pr.yml

@@ -0,0 +1,20 @@
+name: Add Reviewer PR
+on:
+  pull_request_target:
+    types: [opened]
+jobs:
+  run-action:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Get current oncall
+      id: oncall
+      run: |
+        echo "CURRENT=$(curl --request GET 'https://api.pagerduty.com/oncalls?include[]=users&schedule_ids[]=P5VG2BX&earliest=true' --header 'Authorization: Token token=${{ secrets.PAGERDUTY_TOKEN }}' --header 'Accept: application/vnd.pagerduty+json;version=2' --header 'Content-Type: application/json' | jq -r '.oncalls[].user.name')" >> $GITHUB_OUTPUT
+    
+    - name: Request Review
+      run: |
+        curl -X POST -H "Accept: application/vnd.github+json" -H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN}}" https://api.github.com/repos/${{github.repository}}/pulls/${{ github.event.pull_request.number}}/requested_reviewers -d '{"reviewers":["${{steps.oncall.outputs.CURRENT}}"]}'
+        
+    - name: Add Assignee
+      run: |
+        curl -X POST -H "Accept: application/vnd.github+json" -H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN}}" https://api.github.com/repos/${{github.repository}}/issues/${{ github.event.pull_request.number}}/assignees -d '{"assignees":["${{steps.oncall.outputs.CURRENT}}"]}'    

.github/workflows/assign-issue.yml

@@ -0,0 +1,16 @@
+name: Assign issue
+on:
+  issues:
+    types: [opened]
+jobs:
+  run-action:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Get current oncall
+      id: oncall
+      run: |
+        echo "CURRENT=$(curl --request GET 'https://api.pagerduty.com/oncalls?include[]=users&schedule_ids[]=P5VG2BX&earliest=true' --header 'Authorization: Token token=${{ secrets.PAGERDUTY_TOKEN }}' --header 'Accept: application/vnd.pagerduty+json;version=2' --header 'Content-Type: application/json' | jq -r '.oncalls[].user.name')" >> $GITHUB_OUTPUT
+    
+    - name: add_assignees
+      run: |
+        curl -X POST -H "Accept: application/vnd.github+json" -H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN}}" https://api.github.com/repos/${{github.repository}}/issues/${{ github.event.issue.number}}/assignees -d '{"assignees":["${{steps.oncall.outputs.CURRENT}}"]}'

.github/workflows/check-dist.yml

@@ -22,16 +22,14 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
-
-      - name: Set Node.js 12.x
-        uses: actions/setup-node@v1
+      - uses: actions/checkout@v3
+      - name: Setup Node.js 16.x
+        uses: actions/setup-node@v3
         with:
-          node-version: 12.x
-
+          node-version: 16.x
+          cache: npm
       - name: Install dependencies
         run: npm ci
-
       - name: Rebuild the dist/ directory
         run: npm run build
 
@@ -45,7 +43,7 @@ jobs:
         id: diff
 
       # If index.js was different than expected, upload the expected version as an artifact
-      - uses: actions/upload-artifact@v2
+      - uses: actions/upload-artifact@v3
         if: ${{ failure() && steps.diff.conclusion == 'failure' }}
         with:
           name: dist

.github/workflows/close-inactive-issues.yml

@@ -12,10 +12,10 @@ jobs:
     steps:
       - uses: actions/stale@v3
         with:
-          days-before-issue-stale: 365
+          days-before-issue-stale: 200
           days-before-issue-close: 5
           stale-issue-label: "stale"
-          stale-issue-message: "This issue is stale because it has been open for 365 days with no activity. Leave a comment to avoid closing this issue in 5 days."
+          stale-issue-message: "This issue is stale because it has been open for 200 days with no activity. Leave a comment to avoid closing this issue in 5 days."
           close-issue-message: "This issue was closed because it has been inactive for 5 days since being marked as stale."
           days-before-pr-stale: -1
           days-before-pr-close: -1

.github/workflows/codeql.yml

@@ -8,45 +8,39 @@ on:
 
 jobs:
   CodeQL-Build:
-
-    # CodeQL runs on ubuntu-latest and windows-latest
+    # CodeQL runs on ubuntu-latest, windows-latest, and macos-latest
     runs-on: ubuntu-latest
 
+    permissions:
+      # required for all workflows
+      security-events: write
+
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v2
-      with:
-        # We must fetch at least the immediate parents so that if this is
-        # a pull request then we can checkout the head.
-        fetch-depth: 2
+      uses: actions/checkout@v3
 
-    # If this run was triggered by a pull request event, then checkout
-    # the head of the pull request instead of the merge commit.
-    - run: git checkout HEAD^2
-      if: ${{ github.event_name == 'pull_request' }}
-      
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@v1
+      uses: github/codeql-action/init@v2
       # Override language selection by uncommenting this and choosing your languages
       # with:
-      #   languages: go, javascript, csharp, python, cpp, java
+      #   languages: go, javascript, csharp, python, cpp, java, ruby
 
-    # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
-    # If this step fails, then you should remove it and run the build manually (see below)
+    # Autobuild attempts to build any compiled languages (C/C++, C#, Go, or Java).
+    # If this step fails, then you should remove it and run the build manually (see below).
     - name: Autobuild
-      uses: github/codeql-action/autobuild@v1
+      uses: github/codeql-action/autobuild@v2
 
     # ℹ️ Command-line programs to run using the OS shell.
-    # 📚 https://git.io/JvXDl
+    # 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
 
-    # ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
-    #    and modify them (or add more) to build your code if your project
-    #    uses a compiled language
+    # ✏️ If the Autobuild fails above, remove it and uncomment the following
+    #    three lines and modify them (or add more) to build your code if your
+    #    project uses a compiled language
 
     #- run: |
-    #   make bootstrap
-    #   make release
+    #     make bootstrap
+    #     make release
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v1
+      uses: github/codeql-action/analyze@v2

.github/workflows/licensed.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     name: Check licenses
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - run: npm ci
       - name: Install licensed
         run: |

.github/workflows/workflow.yml

@@ -5,14 +5,10 @@ on:
     branches:
       - main
       - releases/**
-    paths-ignore:
-      - '**.md'
   push:
     branches:
       - main
       - releases/**
-    paths-ignore:
-      - '**.md'
 
 jobs:
   # Build and unit test
@@ -24,22 +20,12 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
-    - name: Setup Node.js
-      uses: actions/setup-node@v1
+      uses: actions/checkout@v3
+    - name: Setup Node.js 16.x
+      uses: actions/setup-node@v3
       with:
-        node-version: '12.x'
-    - name: Determine npm cache directory
-      id: npm-cache
-      run: |
-        echo "::set-output name=dir::$(npm config get cache)"
-    - name: Restore npm cache
-      uses: actions/cache@v2
-      with:
-        path: ${{ steps.npm-cache.outputs.dir }}
-        key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
-        restore-keys: |
-          ${{ runner.os }}-node-
+        node-version: 16.x
+        cache: npm
     - run: npm ci
     - name: Prettier Format Check
       run: npm run format-check
@@ -57,7 +43,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
     - name: Generate files in working directory
       shell: bash
       run: __tests__/create-cache-files.sh ${{ runner.os }} test-cache
@@ -80,7 +66,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
     - name: Restore cache
       uses: ./
       with:
@@ -103,14 +89,14 @@ jobs:
       options: --dns 127.0.0.1
     services:
       squid-proxy:
-        image: datadog/squid:latest
+        image: ubuntu/squid:latest
         ports:
           - 3128:3128
     env:
       https_proxy: http://squid-proxy:3128
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
     - name: Generate files
       run: __tests__/create-cache-files.sh proxy test-cache
     - name: Save cache
@@ -126,14 +112,14 @@ jobs:
       options: --dns 127.0.0.1
     services:
       squid-proxy:
-        image: datadog/squid:latest
+        image: ubuntu/squid:latest
         ports:
           - 3128:3128
     env:
       https_proxy: http://squid-proxy:3128
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
     - name: Restore cache
       uses: ./
       with:

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

@@ -1,20 +1,20 @@
 ---
 name: "@actions/cache"
-version: 1.0.8
+version: 3.1.2
 type: npm
-summary: Actions cache lib
-homepage: https://github.com/actions/toolkit/tree/main/packages/cache
+summary:
+homepage:
 license: mit
 licenses:
-- sources: LICENSE.md
-  text: |-
-    The MIT License (MIT)
+  - sources: LICENSE.md
+    text: |-
+      The MIT License (MIT)
 
-    Copyright 2019 GitHub
+      Copyright 2019 GitHub
 
-    Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+      Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 
-    The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+      The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
 
-    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+      THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 notices: []

.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/@actions/exec.dep.yml

@@ -1,9 +1,9 @@
 ---
 name: "@actions/exec"
-version: 1.1.0
+version: 1.1.1
 type: npm
-summary: Actions exec lib
-homepage: https://github.com/actions/toolkit/tree/main/packages/exec
+summary: 
+homepage: 
 license: mit
 licenses:
 - sources: LICENSE.md

.licenses/npm/@actions/http-client.dep.yml

@@ -1,9 +1,9 @@
 ---
 name: "@actions/http-client"
-version: 1.0.11
+version: 2.0.1
 type: npm
 summary: Actions Http Client
-homepage: https://github.com/actions/http-client#readme
+homepage: https://github.com/actions/toolkit/tree/main/packages/http-client
 license: mit
 licenses:
 - sources: LICENSE

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

@@ -1,9 +1,9 @@
 ---
 name: "@actions/io"
-version: 1.1.1
+version: 1.1.2
 type: npm
-summary: Actions io lib
-homepage: https://github.com/actions/toolkit/tree/main/packages/io
+summary: 
+homepage: 
 license: mit
 licenses:
 - sources: LICENSE.md

.licenses/npm/@azure/core-asynciterator-polyfill.dep.yml

@@ -1,9 +1,9 @@
 ---
 name: "@azure/core-asynciterator-polyfill"
-version: 1.0.0
+version: 1.0.2
 type: npm
-summary: Polyfill for IE/Node 8 for Symbol.asyncIterator
-homepage: https://github.com/Azure/azure-sdk-for-js/tree/master/sdk/core/core-asynciterator-polyfill
+summary: 
+homepage: 
 license: mit
 licenses:
 - sources: LICENSE

.licenses/npm/@azure/core-http.dep.yml

@@ -1,6 +1,6 @@
 ---
 name: "@azure/core-http"
-version: 2.2.2
+version: 2.2.4
 type: npm
 summary: Isomorphic client Runtime for Typescript/node.js/browser javascript client
   libraries generated using AutoRest

.licenses/npm/@azure/core-lro.dep.yml

@@ -1,10 +1,9 @@
 ---
 name: "@azure/core-lro"
-version: 2.2.1
+version: 2.2.4
 type: npm
-summary: Isomorphic client library for supporting long-running operations in node.js
-  and browser.
-homepage: https://github.com/Azure/azure-sdk-for-js/blob/main/sdk/core/core-lro/README.md
+summary: 
+homepage: 
 license: mit
 licenses:
 - sources: LICENSE

.licenses/npm/@azure/core-paging.dep.yml

@@ -1,6 +1,6 @@
 ---
 name: "@azure/core-paging"
-version: 1.2.0
+version: 1.2.1
 type: npm
 summary: Core types for paging async iterable iterators
 homepage: https://github.com/Azure/azure-sdk-for-js/tree/main/sdk/core/core-paging/README.md

.licenses/npm/@azure/ms-rest-js.dep.yml

@@ -1,10 +1,9 @@
 ---
 name: "@azure/ms-rest-js"
-version: 2.6.0
+version: 2.6.1
 type: npm
-summary: Isomorphic client Runtime for Typescript/node.js/browser javascript client
-  libraries generated using AutoRest
-homepage: https://github.com/Azure/ms-rest-js
+summary: 
+homepage: 
 license: mit
 licenses:
 - sources: LICENSE

.licenses/npm/@azure/storage-blob.dep.yml

@@ -1,9 +1,9 @@
 ---
 name: "@azure/storage-blob"
-version: 12.8.0
+version: 12.9.0
 type: npm
-summary: Microsoft Azure Storage SDK for JavaScript - Blob
-homepage: https://github.com/Azure/azure-sdk-for-js/blob/main/sdk/storage/storage-blob/
+summary: 
+homepage: 
 license: mit
 licenses:
 - sources: LICENSE

.licenses/npm/@opentelemetry/api.dep.yml

@@ -1,6 +1,6 @@
 ---
 name: "@opentelemetry/api"
-version: 1.0.3
+version: 1.0.4
 type: npm
 summary: Public API for OpenTelemetry
 homepage: https://github.com/open-telemetry/opentelemetry-js-api#readme
@@ -218,10 +218,6 @@ licenses:
     [discussions-url]: https://github.com/open-telemetry/opentelemetry-js/discussions
     [license-url]: https://github.com/open-telemetry/opentelemetry-js-api/blob/main/LICENSE
     [license-image]: https://img.shields.io/badge/license-Apache_2.0-green.svg?style=flat
-    [dependencies-image]: https://status.david-dm.org/gh/open-telemetry/opentelemetry-js-api.svg
-    [dependencies-url]: https://david-dm.org/open-telemetry/opentelemetry-js-api
-    [devDependencies-image]: https://status.david-dm.org/gh/open-telemetry/opentelemetry-js-api.svg?type=dev
-    [devDependencies-url]: https://david-dm.org/open-telemetry/opentelemetry-js-api?type=dev
     [npm-url]: https://www.npmjs.com/package/@opentelemetry/api
     [npm-img]: https://badge.fury.io/js/%40opentelemetry%2Fapi.svg
     [docs-tracing]: https://github.com/open-telemetry/opentelemetry-js-api/blob/main/docs/tracing.md

.licenses/npm/@types/node-fetch.dep.yml

@@ -1,9 +1,9 @@
 ---
 name: "@types/node-fetch"
-version: 2.5.12
+version: 2.6.1
 type: npm
-summary: TypeScript definitions for node-fetch
-homepage: https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/node-fetch
+summary: 
+homepage: 
 license: mit
 licenses:
 - sources: LICENSE

.licenses/npm/@types/node.dep.yml

@@ -1,6 +1,6 @@
 ---
 name: "@types/node"
-version: 12.20.37
+version: 16.11.33
 type: npm
 summary: TypeScript definitions for Node.js
 homepage: https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/node

.licenses/npm/node-fetch.dep.yml

@@ -1,6 +1,6 @@
 ---
 name: node-fetch
-version: 2.6.6
+version: 2.6.7
 type: npm
 summary: A light-weight module that brings window.fetch to node.js
 homepage: https://github.com/bitinn/node-fetch

README.md

@@ -2,52 +2,63 @@
 
 This action allows caching dependencies and build outputs to improve workflow execution time.
 
-<a href="https://github.com/actions/cache/actions?query=workflow%3ATests"><img alt="GitHub Actions status" src="https://github.com/actions/cache/workflows/Tests/badge.svg?branch=main&event=push"></a>
+In addition to this `cache` action, other two actions are also available
+
+[Restore action](./restore/README.md)
+
+[Save action](./save/README.md)
+
+[![Tests](https://github.com/actions/cache/actions/workflows/workflow.yml/badge.svg)](https://github.com/actions/cache/actions/workflows/workflow.yml)
 
 ## Documentation
 
-See ["Caching dependencies to speed up workflows"](https://help.github.com/github/automating-your-workflow-with-github-actions/caching-dependencies-to-speed-up-workflows).
+See ["Caching dependencies to speed up workflows"](https://docs.github.com/en/actions/using-workflows/caching-dependencies-to-speed-up-workflows).
+
 
 ## What's New
+### v3
+* Added support for caching from GHES 3.5.
+* Fixed download issue for files > 2GB during restore.
+* Updated the minimum runner version support from node 12 -> node 16.
+* Fixed avoiding empty cache save when no files are available for caching.
+* Fixed tar creation error while trying to create tar with path as `~/` home folder on `ubuntu-latest`.
+* Fixed zstd failing on amazon linux 2.0 runners.
+* Fixed cache not working with github workspace directory or current directory.
+* Fixed the download stuck problem by introducing a timeout of 1 hour for cache downloads.
+* Fix zstd not working for windows on gnu tar in issues.
+* Allowing users to provide a custom timeout as input for aborting download of a cache segment using an environment variable `SEGMENT_DOWNLOAD_TIMEOUT_MINS`. Default is 60 minutes.
+* Two new actions available for granular control over caches - [restore](restore/action.yml) and [save](save/action.yml)
+* Support cross-os caching as an opt-in feature. See [Cross OS caching](./tips-and-workarounds.md#cross-os-cache) for more info.
 
-* Added support for multiple paths, [glob patterns](https://github.com/actions/toolkit/tree/main/packages/glob), and single file caches. 
-
-```yaml
-- name: Cache multiple paths
-  uses: actions/cache@v2
-  with:
-    path: |
-      ~/cache
-      !~/cache/exclude
-    key: ${{ runner.os }}-${{ hashFiles('**/lockfiles') }}
-```
-
-* Increased performance and improved cache sizes using `zstd` compression for Linux and macOS runners
-* Allowed caching for all events with a ref. See [events that trigger workflow](https://help.github.com/en/actions/reference/events-that-trigger-workflows) for info on which events do not have a `GITHUB_REF`
-* Released the [`@actions/cache`](https://github.com/actions/toolkit/tree/main/packages/cache) npm package to allow other actions to utilize caching
-* Added a best-effort cleanup step to delete the archive after extraction to reduce storage space
-
-Refer [here](https://github.com/actions/cache/blob/v1/README.md) for previous versions
+Refer [here](https://github.com/actions/cache/blob/v2/README.md) for previous versions
 
 ## Usage
 
 ### Pre-requisites
 Create a workflow `.yml` file in your repositories `.github/workflows` directory. An [example workflow](#example-workflow) is available below. For more information, reference the GitHub Help Documentation for [Creating a workflow file](https://help.github.com/en/articles/configuring-a-workflow#creating-a-workflow-file).
 
+If you are using this inside a container, a POSIX-compliant `tar` needs to be included and accessible in the execution path.
+
 ### Inputs
 
-* `path` - A list of files, directories, and wildcard patterns to cache and restore. See [`@actions/glob`](https://github.com/actions/toolkit/tree/main/packages/glob) for supported patterns. 
+* `path` - A list of files, directories, and wildcard patterns to cache and restore. See [`@actions/glob`](https://github.com/actions/toolkit/tree/main/packages/glob) for supported patterns.
 * `key` - An explicit key for restoring and saving the cache
-* `restore-keys` - An ordered list of keys to use for restoring the cache if no cache hit occurred for key
+* `restore-keys` - An ordered list of prefix-matched keys to use for restoring stale cache if no cache hit occurred for key.
+* `enableCrossOsArchive` - An optional boolean when enabled, allows Windows runners to save or restore caches that can be restored or saved respectively on other platforms. Default: false
+
+#### Environment Variables
+* `SEGMENT_DOWNLOAD_TIMEOUT_MINS` - Segment download timeout (in minutes, default `60`) to abort download of the segment if not completed in the defined number of minutes. [Read more](https://github.com/actions/cache/blob/main/tips-and-workarounds.md#cache-segment-restore-timeout)
 
 ### Outputs
 
-* `cache-hit` - A boolean value to indicate an exact match was found for the key
+* `cache-hit` - A boolean value to indicate an exact match was found for the key. 
 
-> See [Skipping steps based on cache-hit](#Skipping-steps-based-on-cache-hit) for info on using this output
+> Note: `cache-hit` will be set to `true` only when cache hit occurs for the exact `key` match. For a partial key match via `restore-keys` or a cache miss, it will be set to `false`.
+
+See [Skipping steps based on cache-hit](#skipping-steps-based-on-cache-hit) for info on using this output
 
 ### Cache scopes
-The cache is scoped to the key and branch. The default branch cache is available to other branches. 
+The cache is scoped to the key, [version](#cache-version) and branch. The default branch cache is available to other branches.
 
 See [Matching a cache key](https://help.github.com/en/actions/configuring-and-managing-workflows/caching-dependencies-to-speed-up-workflows#matching-a-cache-key) for more info.
 
@@ -63,11 +74,11 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
 
     - name: Cache Primes
       id: cache-primes
-      uses: actions/cache@v2
+      uses: actions/cache@v3
       with:
         path: prime-numbers
         key: ${{ runner.os }}-primes
@@ -80,17 +91,22 @@ jobs:
       run: /primes.sh -d prime-numbers
 ```
 
+> Note: You must use the `cache` action in your workflow before you need to use the files that might be restored from the cache. If the provided `key` matches an existing cache, a new cache is not created and if the provided `key` doesn't match an existing cache, a new cache is automatically created provided the job completes successfully.
+
 ## Implementation Examples
 
 Every programming language and framework has its own way of caching.
 
 See [Examples](examples.md) for a list of `actions/cache` implementations for use with:
 
-- [C# - Nuget](./examples.md#c---nuget)
+- [C# - NuGet](./examples.md#c---nuget)
+- [Clojure - Lein Deps](./examples.md#clojure---lein-deps)
 - [D - DUB](./examples.md#d---dub)
+- [Deno](./examples.md#deno)
 - [Elixir - Mix](./examples.md#elixir---mix)
 - [Go - Modules](./examples.md#go---modules)
 - [Haskell - Cabal](./examples.md#haskell---cabal)
+- [Haskell - Stack](./examples.md#haskell---stack)
 - [Java - Gradle](./examples.md#java---gradle)
 - [Java - Maven](./examples.md#java---maven)
 - [Node - npm](./examples.md#node---npm)
@@ -107,19 +123,20 @@ See [Examples](examples.md) for a list of `actions/cache` implementations for us
 - [Swift, Objective-C - Carthage](./examples.md#swift-objective-c---carthage)
 - [Swift, Objective-C - CocoaPods](./examples.md#swift-objective-c---cocoapods)
 - [Swift - Swift Package Manager](./examples.md#swift---swift-package-manager)
+- [Swift - Mint](./examples.md#swift---mint)
 
 ## Creating a cache key
 
 A cache key can include any of the contexts, functions, literals, and operators supported by GitHub Actions.
 
-For example, using the [`hashFiles`](https://help.github.com/en/actions/reference/context-and-expression-syntax-for-github-actions#hashfiles) function allows you to create a new cache when dependencies change.
+For example, using the [`hashFiles`](https://docs.github.com/en/actions/learn-github-actions/expressions#hashfiles) function allows you to create a new cache when dependencies change.
 
 ```yaml
-  - uses: actions/cache@v2
+  - uses: actions/cache@v3
     with:
-      path: | 
+      path: |
         path/to/dependencies
-        some/other/dependencies 
+        some/other/dependencies
       key: ${{ runner.os }}-${{ hashFiles('**/lockfiles') }}
 ```
 
@@ -133,7 +150,7 @@ Additionally, you can use arbitrary command output in a cache key, such as a dat
       echo "::set-output name=date::$(/bin/date -u "+%Y%m%d")"
     shell: bash
 
-  - uses: actions/cache@v2
+  - uses: actions/cache@v3
     with:
       path: path/to/dependencies
       key: ${{ runner.os }}-${{ steps.get-date.outputs.date }}-${{ hashFiles('**/lockfiles') }}
@@ -147,14 +164,14 @@ A repository can have up to 10GB of caches. Once the 10GB limit is reached, olde
 
 ## Skipping steps based on cache-hit
 
-Using the `cache-hit` output, subsequent steps (such as install or build) can be skipped when a cache hit occurs on the key.
+Using the `cache-hit` output, subsequent steps (such as install or build) can be skipped when a cache hit occurs on the key.  It is recommended to install the missing/updated dependencies in case of a partial key match when the key is dependent on the `hash` of the package file.
 
 Example:
 ```yaml
 steps:
-  - uses: actions/checkout@v2
+  - uses: actions/checkout@v3
 
-  - uses: actions/cache@v2
+  - uses: actions/cache@v3
     id: cache
     with:
       path: path/to/dependencies
@@ -167,11 +184,74 @@ steps:
 
 > Note: The `id` defined in `actions/cache` must match the `id` in the `if` statement (i.e. `steps.[ID].outputs.cache-hit`)
 
-## Known limitation
 
-- `action/cache` is currently not supported on GitHub Enterprise Server. <https://github.com/github/roadmap/issues/273> is tracking this.
+## Cache Version
+Cache version is a hash [generated](https://github.com/actions/toolkit/blob/500d0b42fee2552ae9eeb5933091fe2fbf14e72d/packages/cache/src/internal/cacheHttpClient.ts#L73-L90) for a combination of compression tool used (Gzip, Zstd, etc. based on the runner OS) and the `path` of directories being cached. If two caches have different versions, they are identified as unique caches while matching. This for example, means that a cache created on `windows-latest` runner can't be restored on `ubuntu-latest` as cache `Version`s are different. 
 
-Since GitHub Enterprise Server uses self-hosted runners, dependencies are typically cached on the runner by whatever dependency management tool is being used (npm, maven, etc.).  This eliminates the need for explicit caching in some scenarios.
+> Pro tip: [List caches](https://docs.github.com/en/rest/actions/cache#list-github-actions-caches-for-a-repository) API can be used to get the version of a cache. This can be helpful to troubleshoot cache miss due to version. 
+
+<details>
+  <summary>Example</summary>
+The workflow will create 3 unique caches with same keys. Ubuntu and windows runners will use different compression technique and hence create two different caches. And `build-linux` will create two different caches as the `paths` are different.
+
+```yaml
+jobs:
+  build-linux:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Cache Primes
+        id: cache-primes
+        uses: actions/cache@v3
+        with:
+          path: prime-numbers
+          key: primes
+
+      - name: Generate Prime Numbers
+        if: steps.cache-primes.outputs.cache-hit != 'true'
+        run: ./generate-primes.sh -d prime-numbers
+
+      - name: Cache Numbers
+        id: cache-numbers
+        uses: actions/cache@v3
+        with:
+          path: numbers
+          key: primes
+
+      - name: Generate Numbers
+        if: steps.cache-numbers.outputs.cache-hit != 'true'
+        run: ./generate-primes.sh -d numbers
+
+  build-windows:
+    runs-on: windows-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Cache Primes
+        id: cache-primes
+        uses: actions/cache@v3
+        with:
+          path: prime-numbers
+          key: primes
+
+      - name: Generate Prime Numbers
+        if: steps.cache-primes.outputs.cache-hit != 'true'
+        run: ./generate-primes -d prime-numbers
+```
+</details>
+
+## Known practices and workarounds
+Following are some of the known practices/workarounds which community has used to fulfill specific requirements. You may choose to use them if suits your use case. Note these are not necessarily the only or the recommended solution.
+
+- [Cache segment restore timeout](./tips-and-workarounds.md#cache-segment-restore-timeout)
+- [Update a cache](./tips-and-workarounds.md#update-a-cache)
+- [Use cache across feature branches](./tips-and-workarounds.md#use-cache-across-feature-branches)
+- [Cross OS cache](./tips-and-workarounds.md#cross-os-cache)
+- [Force deletion of caches overriding default cache eviction policy](./tips-and-workarounds.md#force-deletion-of-caches-overriding-default-cache-eviction-policy)
+
+#### Windows environment variables
+Please note that Windows environment variables (like `%LocalAppData%`) will NOT be expanded by this action. Instead, prefer using `~` in your paths which will expand to HOME directory. For example, instead of `%LocalAppData%`, use `~\AppData\Local`. For a list of supported default environment variables, see [this](https://docs.github.com/en/actions/learn-github-actions/environment-variables) page. 
 
 ## Contributing
 We would love for you to contribute to `actions/cache`, pull requests are welcome! Please see the [CONTRIBUTING.md](CONTRIBUTING.md) for more information.

RELEASES.md

@@ -0,0 +1,69 @@
+# Releases
+
+### 3.0.0
+- Updated minimum runner version support from node 12 -> node 16
+
+### 3.0.1
+- Added support for caching from GHES 3.5.
+- Fixed download issue for files > 2GB during restore.
+
+### 3.0.2
+- Added support for dynamic cache size cap on GHES.
+
+### 3.0.3
+- Fixed avoiding empty cache save when no files are available for caching. ([issue](https://github.com/actions/cache/issues/624))
+
+### 3.0.4
+- Fixed tar creation error while trying to create tar with path as `~/` home folder on `ubuntu-latest`. ([issue](https://github.com/actions/cache/issues/689))
+
+### 3.0.5
+- Removed error handling by consuming actions/cache 3.0 toolkit, Now cache server error handling will be done by toolkit. ([PR](https://github.com/actions/cache/pull/834))
+
+### 3.0.6
+- Fixed [#809](https://github.com/actions/cache/issues/809) - zstd -d: no such file or directory error
+- Fixed [#833](https://github.com/actions/cache/issues/833) - cache doesn't work with github workspace directory
+
+### 3.0.7
+- Fixed [#810](https://github.com/actions/cache/issues/810) - download stuck issue. A new timeout is introduced in the download process to abort the download if it gets stuck and doesn't finish within an hour.
+
+### 3.0.8
+- Fix zstd not working for windows on gnu tar in issues [#888](https://github.com/actions/cache/issues/888) and [#891](https://github.com/actions/cache/issues/891).
+- Allowing users to provide a custom timeout as input for aborting download of a cache segment using an environment variable `SEGMENT_DOWNLOAD_TIMEOUT_MINS`. Default is 60 minutes.
+
+### 3.0.9
+- Enhanced the warning message for cache unavailablity in case of GHES.
+
+### 3.0.10
+- Fix a bug with sorting inputs.
+- Update definition for restore-keys in README.md
+
+### 3.0.11
+- Update toolkit version to 3.0.5 to include `@actions/core@^1.10.0`
+- Update `@actions/cache` to use updated `saveState` and `setOutput` functions from `@actions/core@^1.10.0`
+
+### 3.1.0-beta.1
+- Update `@actions/cache` on windows to use gnu tar and zstd by default and fallback to bsdtar and zstd if gnu tar is not available. ([issue](https://github.com/actions/cache/issues/984))
+
+### 3.1.0-beta.2
+- Added support for fallback to gzip to restore old caches on windows.
+
+### 3.1.0-beta.3
+- Bug fixes for bsdtar fallback if gnutar not available and gzip fallback if cache saved using old cache action on windows.
+
+### 3.2.0-beta.1
+- Added two new actions - [restore](restore/action.yml) and [save](save/action.yml) for granular control on cache.
+
+### 3.2.0
+- Released the two new actions - [restore](restore/action.yml) and [save](save/action.yml) for granular control on cache
+
+### 3.2.1
+- Update `@actions/cache` on windows to use gnu tar and zstd by default and fallback to bsdtar and zstd if gnu tar is not available. ([issue](https://github.com/actions/cache/issues/984))
+- Added support for fallback to gzip to restore old caches on windows.
+- Added logs for cache version in case of a cache miss.
+
+### 3.2.2
+- Reverted the changes made in 3.2.1 to use gnu tar and zstd by default on windows.
+
+### 3.2.3
+- Support cross os caching on Windows as an opt-in feature.
+- Fix issue with symlink restoration on Windows for cross-os caches.

__tests__/actionUtils.test.ts

@@ -1,10 +1,12 @@
+import * as cache from "@actions/cache";
 import * as core from "@actions/core";
 
-import { Events, Outputs, RefKey, State } from "../src/constants";
+import { Events, RefKey } from "../src/constants";
 import * as actionUtils from "../src/utils/actionUtils";
 import * as testUtils from "../src/utils/testUtils";
 
 jest.mock("@actions/core");
+jest.mock("@actions/cache");
 
 beforeAll(() => {
     jest.spyOn(core, "getInput").mockImplementation((name, options) => {
@@ -26,7 +28,7 @@ test("isGhes returns true if server url is not github.com", () => {
     }
 });
 
-test("isGhes returns true when server url is github.com", () => {
+test("isGhes returns false when server url is github.com", () => {
     try {
         process.env["GITHUB_SERVER_URL"] = "http://github.com";
         expect(actionUtils.isGhes()).toBe(false);
@@ -77,83 +79,6 @@ test("isExactKeyMatch with same key and different casing returns true", () => {
     expect(actionUtils.isExactKeyMatch(key, cacheKey)).toBe(true);
 });
 
-test("setOutputAndState with undefined entry to set cache-hit output", () => {
-    const key = "linux-rust";
-    const cacheKey = undefined;
-
-    const setOutputMock = jest.spyOn(core, "setOutput");
-    const saveStateMock = jest.spyOn(core, "saveState");
-
-    actionUtils.setOutputAndState(key, cacheKey);
-
-    expect(setOutputMock).toHaveBeenCalledWith(Outputs.CacheHit, "false");
-    expect(setOutputMock).toHaveBeenCalledTimes(1);
-
-    expect(saveStateMock).toHaveBeenCalledTimes(0);
-});
-
-test("setOutputAndState with exact match to set cache-hit output and state", () => {
-    const key = "linux-rust";
-    const cacheKey = "linux-rust";
-
-    const setOutputMock = jest.spyOn(core, "setOutput");
-    const saveStateMock = jest.spyOn(core, "saveState");
-
-    actionUtils.setOutputAndState(key, cacheKey);
-
-    expect(setOutputMock).toHaveBeenCalledWith(Outputs.CacheHit, "true");
-    expect(setOutputMock).toHaveBeenCalledTimes(1);
-
-    expect(saveStateMock).toHaveBeenCalledWith(State.CacheMatchedKey, cacheKey);
-    expect(saveStateMock).toHaveBeenCalledTimes(1);
-});
-
-test("setOutputAndState with no exact match to set cache-hit output and state", () => {
-    const key = "linux-rust";
-    const cacheKey = "linux-rust-bb828da54c148048dd17899ba9fda624811cfb43";
-
-    const setOutputMock = jest.spyOn(core, "setOutput");
-    const saveStateMock = jest.spyOn(core, "saveState");
-
-    actionUtils.setOutputAndState(key, cacheKey);
-
-    expect(setOutputMock).toHaveBeenCalledWith(Outputs.CacheHit, "false");
-    expect(setOutputMock).toHaveBeenCalledTimes(1);
-
-    expect(saveStateMock).toHaveBeenCalledWith(State.CacheMatchedKey, cacheKey);
-    expect(saveStateMock).toHaveBeenCalledTimes(1);
-});
-
-test("getCacheState with no state returns undefined", () => {
-    const getStateMock = jest.spyOn(core, "getState");
-    getStateMock.mockImplementation(() => {
-        return "";
-    });
-
-    const state = actionUtils.getCacheState();
-
-    expect(state).toBe(undefined);
-
-    expect(getStateMock).toHaveBeenCalledWith(State.CacheMatchedKey);
-    expect(getStateMock).toHaveBeenCalledTimes(1);
-});
-
-test("getCacheState with valid state", () => {
-    const cacheKey = "Linux-node-bb828da54c148048dd17899ba9fda624811cfb43";
-
-    const getStateMock = jest.spyOn(core, "getState");
-    getStateMock.mockImplementation(() => {
-        return cacheKey;
-    });
-
-    const state = actionUtils.getCacheState();
-
-    expect(state).toEqual(cacheKey);
-
-    expect(getStateMock).toHaveBeenCalledWith(State.CacheMatchedKey);
-    expect(getStateMock).toHaveBeenCalledTimes(1);
-});
-
 test("logWarning logs a message with a warning prefix", () => {
     const message = "A warning occurred.";
 
@@ -213,6 +138,22 @@ test("getInputAsArray handles empty lines correctly", () => {
     expect(actionUtils.getInputAsArray("foo")).toEqual(["bar", "baz"]);
 });
 
+test("getInputAsArray removes spaces after ! at the beginning", () => {
+    testUtils.setInput(
+        "foo",
+        "!   bar\n!  baz\n! qux\n!quux\ncorge\ngrault! garply\n!\r\t waldo"
+    );
+    expect(actionUtils.getInputAsArray("foo")).toEqual([
+        "!bar",
+        "!baz",
+        "!qux",
+        "!quux",
+        "corge",
+        "grault! garply",
+        "!waldo"
+    ]);
+});
+
 test("getInputAsInt returns undefined if input not set", () => {
     expect(actionUtils.getInputAsInt("undefined")).toBeUndefined();
 });
@@ -232,3 +173,61 @@ test("getInputAsInt throws if required and value missing", () => {
         actionUtils.getInputAsInt("undefined", { required: true })
     ).toThrowError();
 });
+
+test("getInputAsBool returns false if input not set", () => {
+    expect(actionUtils.getInputAsBool("undefined")).toBe(false);
+});
+
+test("getInputAsBool returns value if input is valid", () => {
+    testUtils.setInput("foo", "true");
+    expect(actionUtils.getInputAsBool("foo")).toBe(true);
+});
+
+test("getInputAsBool returns false if input is invalid or NaN", () => {
+    testUtils.setInput("foo", "bar");
+    expect(actionUtils.getInputAsBool("foo")).toBe(false);
+});
+
+test("getInputAsBool throws if required and value missing", () => {
+    expect(() =>
+        actionUtils.getInputAsBool("undefined2", { required: true })
+    ).toThrowError();
+});
+
+test("isCacheFeatureAvailable for ac enabled", () => {
+    jest.spyOn(cache, "isFeatureAvailable").mockImplementation(() => true);
+
+    expect(actionUtils.isCacheFeatureAvailable()).toBe(true);
+});
+
+test("isCacheFeatureAvailable for ac disabled on GHES", () => {
+    jest.spyOn(cache, "isFeatureAvailable").mockImplementation(() => false);
+
+    const message = `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.
+Otherwise please upgrade to GHES version >= 3.5 and If you are also using Github Connect, please unretire the actions/cache namespace before upgrade (see https://docs.github.com/en/enterprise-server@3.5/admin/github-actions/managing-access-to-actions-from-githubcom/enabling-automatic-access-to-githubcom-actions-using-github-connect#automatic-retirement-of-namespaces-for-actions-accessed-on-githubcom)`;
+    const infoMock = jest.spyOn(core, "info");
+
+    try {
+        process.env["GITHUB_SERVER_URL"] = "http://example.com";
+        expect(actionUtils.isCacheFeatureAvailable()).toBe(false);
+        expect(infoMock).toHaveBeenCalledWith(`[warning]${message}`);
+    } finally {
+        delete process.env["GITHUB_SERVER_URL"];
+    }
+});
+
+test("isCacheFeatureAvailable for ac disabled on dotcom", () => {
+    jest.spyOn(cache, "isFeatureAvailable").mockImplementation(() => false);
+
+    const message =
+        "An internal error has occurred in cache backend. Please check https://www.githubstatus.com/ for any ongoing issue in actions.";
+    const infoMock = jest.spyOn(core, "info");
+
+    try {
+        process.env["GITHUB_SERVER_URL"] = "http://github.com";
+        expect(actionUtils.isCacheFeatureAvailable()).toBe(false);
+        expect(infoMock).toHaveBeenCalledWith(`[warning]${message}`);
+    } finally {
+        delete process.env["GITHUB_SERVER_URL"];
+    }
+});

__tests__/restore.test.ts

@@ -1,7 +1,7 @@
 import * as cache from "@actions/cache";
 import * as core from "@actions/core";
 
-import { Events, Inputs, RefKey } from "../src/constants";
+import { Events, RefKey } from "../src/constants";
 import run from "../src/restore";
 import * as actionUtils from "../src/utils/actionUtils";
 import * as testUtils from "../src/utils/testUtils";
@@ -27,13 +27,24 @@ beforeAll(() => {
             return actualUtils.getInputAsArray(name, options);
         }
     );
+
+    jest.spyOn(actionUtils, "getInputAsBool").mockImplementation(
+        (name, options) => {
+            const actualUtils = jest.requireActual("../src/utils/actionUtils");
+            return actualUtils.getInputAsBool(name, options);
+        }
+    );
 });
 
 beforeEach(() => {
+    jest.restoreAllMocks();
     process.env[Events.Key] = Events.Push;
     process.env[RefKey] = "refs/heads/feature-branch";
 
     jest.spyOn(actionUtils, "isGhes").mockImplementation(() => false);
+    jest.spyOn(actionUtils, "isCacheFeatureAvailable").mockImplementation(
+        () => true
+    );
 });
 
 afterEach(() => {
@@ -42,117 +53,13 @@ afterEach(() => {
     delete process.env[RefKey];
 });
 
-test("restore with invalid event outputs warning", async () => {
-    const logWarningMock = jest.spyOn(actionUtils, "logWarning");
-    const failedMock = jest.spyOn(core, "setFailed");
-    const invalidEvent = "commit_comment";
-    process.env[Events.Key] = invalidEvent;
-    delete process.env[RefKey];
-    await run();
-    expect(logWarningMock).toHaveBeenCalledWith(
-        `Event Validation Error: The event type ${invalidEvent} is not supported because it's not tied to a branch or tag ref.`
-    );
-    expect(failedMock).toHaveBeenCalledTimes(0);
-});
-
-test("restore on GHES should no-op", async () => {
-    jest.spyOn(actionUtils, "isGhes").mockImplementation(() => true);
-
-    const logWarningMock = jest.spyOn(actionUtils, "logWarning");
-    const restoreCacheMock = jest.spyOn(cache, "restoreCache");
-    const setCacheHitOutputMock = jest.spyOn(actionUtils, "setCacheHitOutput");
-
-    await run();
-
-    expect(restoreCacheMock).toHaveBeenCalledTimes(0);
-    expect(setCacheHitOutputMock).toHaveBeenCalledTimes(1);
-    expect(setCacheHitOutputMock).toHaveBeenCalledWith(false);
-    expect(logWarningMock).toHaveBeenCalledWith(
-        "Cache action is not supported on GHES. See https://github.com/actions/cache/issues/505 for more details"
-    );
-});
-
-test("restore with no path should fail", async () => {
-    const failedMock = jest.spyOn(core, "setFailed");
-    const restoreCacheMock = jest.spyOn(cache, "restoreCache");
-    await run();
-    expect(restoreCacheMock).toHaveBeenCalledTimes(0);
-    // this input isn't necessary for restore b/c tarball contains entries relative to workspace
-    expect(failedMock).not.toHaveBeenCalledWith(
-        "Input required and not supplied: path"
-    );
-});
-
-test("restore with no key", async () => {
-    testUtils.setInput(Inputs.Path, "node_modules");
-    const failedMock = jest.spyOn(core, "setFailed");
-    const restoreCacheMock = jest.spyOn(cache, "restoreCache");
-    await run();
-    expect(restoreCacheMock).toHaveBeenCalledTimes(0);
-    expect(failedMock).toHaveBeenCalledWith(
-        "Input required and not supplied: key"
-    );
-});
-
-test("restore with too many keys should fail", async () => {
-    const path = "node_modules";
-    const key = "node-test";
-    const restoreKeys = [...Array(20).keys()].map(x => x.toString());
-    testUtils.setInputs({
-        path: path,
-        key,
-        restoreKeys
-    });
-    const failedMock = jest.spyOn(core, "setFailed");
-    const restoreCacheMock = jest.spyOn(cache, "restoreCache");
-    await run();
-    expect(restoreCacheMock).toHaveBeenCalledTimes(1);
-    expect(restoreCacheMock).toHaveBeenCalledWith([path], key, restoreKeys);
-    expect(failedMock).toHaveBeenCalledWith(
-        `Key Validation Error: Keys are limited to a maximum of 10.`
-    );
-});
-
-test("restore with large key should fail", async () => {
-    const path = "node_modules";
-    const key = "foo".repeat(512); // Over the 512 character limit
-    testUtils.setInputs({
-        path: path,
-        key
-    });
-    const failedMock = jest.spyOn(core, "setFailed");
-    const restoreCacheMock = jest.spyOn(cache, "restoreCache");
-    await run();
-    expect(restoreCacheMock).toHaveBeenCalledTimes(1);
-    expect(restoreCacheMock).toHaveBeenCalledWith([path], key, []);
-    expect(failedMock).toHaveBeenCalledWith(
-        `Key Validation Error: ${key} cannot be larger than 512 characters.`
-    );
-});
-
-test("restore with invalid key should fail", async () => {
-    const path = "node_modules";
-    const key = "comma,comma";
-    testUtils.setInputs({
-        path: path,
-        key
-    });
-    const failedMock = jest.spyOn(core, "setFailed");
-    const restoreCacheMock = jest.spyOn(cache, "restoreCache");
-    await run();
-    expect(restoreCacheMock).toHaveBeenCalledTimes(1);
-    expect(restoreCacheMock).toHaveBeenCalledWith([path], key, []);
-    expect(failedMock).toHaveBeenCalledWith(
-        `Key Validation Error: ${key} cannot contain commas.`
-    );
-});
-
 test("restore with no cache found", async () => {
     const path = "node_modules";
     const key = "node-test";
     testUtils.setInputs({
         path: path,
-        key
+        key,
+        enableCrossOsArchive: false
     });
 
     const infoMock = jest.spyOn(core, "info");
@@ -167,9 +74,11 @@ test("restore with no cache found", async () => {
     await run();
 
     expect(restoreCacheMock).toHaveBeenCalledTimes(1);
-    expect(restoreCacheMock).toHaveBeenCalledWith([path], key, []);
+    expect(restoreCacheMock).toHaveBeenCalledWith([path], key, [], {}, false);
 
     expect(stateMock).toHaveBeenCalledWith("CACHE_KEY", key);
+    expect(stateMock).toHaveBeenCalledTimes(1);
+
     expect(failedMock).toHaveBeenCalledTimes(0);
 
     expect(infoMock).toHaveBeenCalledWith(
@@ -177,40 +86,6 @@ test("restore with no cache found", async () => {
     );
 });
 
-test("restore with server error should fail", async () => {
-    const path = "node_modules";
-    const key = "node-test";
-    testUtils.setInputs({
-        path: path,
-        key
-    });
-
-    const logWarningMock = jest.spyOn(actionUtils, "logWarning");
-    const failedMock = jest.spyOn(core, "setFailed");
-    const stateMock = jest.spyOn(core, "saveState");
-    const restoreCacheMock = jest
-        .spyOn(cache, "restoreCache")
-        .mockImplementationOnce(() => {
-            throw new Error("HTTP Error Occurred");
-        });
-    const setCacheHitOutputMock = jest.spyOn(actionUtils, "setCacheHitOutput");
-
-    await run();
-
-    expect(restoreCacheMock).toHaveBeenCalledTimes(1);
-    expect(restoreCacheMock).toHaveBeenCalledWith([path], key, []);
-
-    expect(stateMock).toHaveBeenCalledWith("CACHE_KEY", key);
-
-    expect(logWarningMock).toHaveBeenCalledTimes(1);
-    expect(logWarningMock).toHaveBeenCalledWith("HTTP Error Occurred");
-
-    expect(setCacheHitOutputMock).toHaveBeenCalledTimes(1);
-    expect(setCacheHitOutputMock).toHaveBeenCalledWith(false);
-
-    expect(failedMock).toHaveBeenCalledTimes(0);
-});
-
 test("restore with restore keys and no cache found", async () => {
     const path = "node_modules";
     const key = "node-test";
@@ -218,7 +93,8 @@ test("restore with restore keys and no cache found", async () => {
     testUtils.setInputs({
         path: path,
         key,
-        restoreKeys: [restoreKey]
+        restoreKeys: [restoreKey],
+        enableCrossOsArchive: false
     });
 
     const infoMock = jest.spyOn(core, "info");
@@ -233,9 +109,17 @@ test("restore with restore keys and no cache found", async () => {
     await run();
 
     expect(restoreCacheMock).toHaveBeenCalledTimes(1);
-    expect(restoreCacheMock).toHaveBeenCalledWith([path], key, [restoreKey]);
+    expect(restoreCacheMock).toHaveBeenCalledWith(
+        [path],
+        key,
+        [restoreKey],
+        {},
+        false
+    );
 
     expect(stateMock).toHaveBeenCalledWith("CACHE_KEY", key);
+    expect(stateMock).toHaveBeenCalledTimes(1);
+
     expect(failedMock).toHaveBeenCalledTimes(0);
 
     expect(infoMock).toHaveBeenCalledWith(
@@ -248,13 +132,14 @@ test("restore with cache found for key", async () => {
     const key = "node-test";
     testUtils.setInputs({
         path: path,
-        key
+        key,
+        enableCrossOsArchive: false
     });
 
     const infoMock = jest.spyOn(core, "info");
     const failedMock = jest.spyOn(core, "setFailed");
     const stateMock = jest.spyOn(core, "saveState");
-    const setCacheHitOutputMock = jest.spyOn(actionUtils, "setCacheHitOutput");
+    const setCacheHitOutputMock = jest.spyOn(core, "setOutput");
     const restoreCacheMock = jest
         .spyOn(cache, "restoreCache")
         .mockImplementationOnce(() => {
@@ -264,11 +149,14 @@ test("restore with cache found for key", async () => {
     await run();
 
     expect(restoreCacheMock).toHaveBeenCalledTimes(1);
-    expect(restoreCacheMock).toHaveBeenCalledWith([path], key, []);
+    expect(restoreCacheMock).toHaveBeenCalledWith([path], key, [], {}, false);
 
     expect(stateMock).toHaveBeenCalledWith("CACHE_KEY", key);
+    expect(stateMock).toHaveBeenCalledWith("CACHE_RESULT", key);
+    expect(stateMock).toHaveBeenCalledTimes(2);
+
     expect(setCacheHitOutputMock).toHaveBeenCalledTimes(1);
-    expect(setCacheHitOutputMock).toHaveBeenCalledWith(true);
+    expect(setCacheHitOutputMock).toHaveBeenCalledWith("cache-hit", "true");
 
     expect(infoMock).toHaveBeenCalledWith(`Cache restored from key: ${key}`);
     expect(failedMock).toHaveBeenCalledTimes(0);
@@ -281,13 +169,14 @@ test("restore with cache found for restore key", async () => {
     testUtils.setInputs({
         path: path,
         key,
-        restoreKeys: [restoreKey]
+        restoreKeys: [restoreKey],
+        enableCrossOsArchive: false
     });
 
     const infoMock = jest.spyOn(core, "info");
     const failedMock = jest.spyOn(core, "setFailed");
     const stateMock = jest.spyOn(core, "saveState");
-    const setCacheHitOutputMock = jest.spyOn(actionUtils, "setCacheHitOutput");
+    const setCacheHitOutputMock = jest.spyOn(core, "setOutput");
     const restoreCacheMock = jest
         .spyOn(cache, "restoreCache")
         .mockImplementationOnce(() => {
@@ -297,12 +186,20 @@ test("restore with cache found for restore key", async () => {
     await run();
 
     expect(restoreCacheMock).toHaveBeenCalledTimes(1);
-    expect(restoreCacheMock).toHaveBeenCalledWith([path], key, [restoreKey]);
+    expect(restoreCacheMock).toHaveBeenCalledWith(
+        [path],
+        key,
+        [restoreKey],
+        {},
+        false
+    );
 
     expect(stateMock).toHaveBeenCalledWith("CACHE_KEY", key);
-    expect(setCacheHitOutputMock).toHaveBeenCalledTimes(1);
-    expect(setCacheHitOutputMock).toHaveBeenCalledWith(false);
+    expect(stateMock).toHaveBeenCalledWith("CACHE_RESULT", restoreKey);
+    expect(stateMock).toHaveBeenCalledTimes(2);
 
+    expect(setCacheHitOutputMock).toHaveBeenCalledTimes(1);
+    expect(setCacheHitOutputMock).toHaveBeenCalledWith("cache-hit", "false");
     expect(infoMock).toHaveBeenCalledWith(
         `Cache restored from key: ${restoreKey}`
     );

__tests__/restoreImpl.test.ts

@@ -0,0 +1,360 @@
+import * as cache from "@actions/cache";
+import * as core from "@actions/core";
+
+import { Events, Inputs, RefKey } from "../src/constants";
+import run from "../src/restoreImpl";
+import { StateProvider } from "../src/stateProvider";
+import * as actionUtils from "../src/utils/actionUtils";
+import * as testUtils from "../src/utils/testUtils";
+
+jest.mock("../src/utils/actionUtils");
+
+beforeAll(() => {
+    jest.spyOn(actionUtils, "isExactKeyMatch").mockImplementation(
+        (key, cacheResult) => {
+            const actualUtils = jest.requireActual("../src/utils/actionUtils");
+            return actualUtils.isExactKeyMatch(key, cacheResult);
+        }
+    );
+
+    jest.spyOn(actionUtils, "isValidEvent").mockImplementation(() => {
+        const actualUtils = jest.requireActual("../src/utils/actionUtils");
+        return actualUtils.isValidEvent();
+    });
+
+    jest.spyOn(actionUtils, "getInputAsArray").mockImplementation(
+        (name, options) => {
+            const actualUtils = jest.requireActual("../src/utils/actionUtils");
+            return actualUtils.getInputAsArray(name, options);
+        }
+    );
+
+    jest.spyOn(actionUtils, "getInputAsBool").mockImplementation(
+        (name, options) => {
+            const actualUtils = jest.requireActual("../src/utils/actionUtils");
+            return actualUtils.getInputAsBool(name, options);
+        }
+    );
+});
+
+beforeEach(() => {
+    jest.restoreAllMocks();
+    process.env[Events.Key] = Events.Push;
+    process.env[RefKey] = "refs/heads/feature-branch";
+
+    jest.spyOn(actionUtils, "isGhes").mockImplementation(() => false);
+    jest.spyOn(actionUtils, "isCacheFeatureAvailable").mockImplementation(
+        () => true
+    );
+});
+
+afterEach(() => {
+    testUtils.clearInputs();
+    delete process.env[Events.Key];
+    delete process.env[RefKey];
+});
+
+test("restore with invalid event outputs warning", async () => {
+    const logWarningMock = jest.spyOn(actionUtils, "logWarning");
+    const failedMock = jest.spyOn(core, "setFailed");
+    const invalidEvent = "commit_comment";
+    process.env[Events.Key] = invalidEvent;
+    delete process.env[RefKey];
+    await run(new StateProvider());
+    expect(logWarningMock).toHaveBeenCalledWith(
+        `Event Validation Error: The event type ${invalidEvent} is not supported because it's not tied to a branch or tag ref.`
+    );
+    expect(failedMock).toHaveBeenCalledTimes(0);
+});
+
+test("restore without AC available should no-op", async () => {
+    jest.spyOn(actionUtils, "isGhes").mockImplementation(() => false);
+    jest.spyOn(actionUtils, "isCacheFeatureAvailable").mockImplementation(
+        () => false
+    );
+
+    const restoreCacheMock = jest.spyOn(cache, "restoreCache");
+    const setCacheHitOutputMock = jest.spyOn(core, "setOutput");
+
+    await run(new StateProvider());
+
+    expect(restoreCacheMock).toHaveBeenCalledTimes(0);
+    expect(setCacheHitOutputMock).toHaveBeenCalledTimes(1);
+    expect(setCacheHitOutputMock).toHaveBeenCalledWith("cache-hit", "false");
+});
+
+test("restore on GHES without AC available should no-op", async () => {
+    jest.spyOn(actionUtils, "isGhes").mockImplementation(() => true);
+    jest.spyOn(actionUtils, "isCacheFeatureAvailable").mockImplementation(
+        () => false
+    );
+
+    const restoreCacheMock = jest.spyOn(cache, "restoreCache");
+    const setCacheHitOutputMock = jest.spyOn(core, "setOutput");
+
+    await run(new StateProvider());
+
+    expect(restoreCacheMock).toHaveBeenCalledTimes(0);
+    expect(setCacheHitOutputMock).toHaveBeenCalledTimes(1);
+    expect(setCacheHitOutputMock).toHaveBeenCalledWith("cache-hit", "false");
+});
+
+test("restore on GHES with AC available ", async () => {
+    jest.spyOn(actionUtils, "isGhes").mockImplementation(() => true);
+    const path = "node_modules";
+    const key = "node-test";
+    testUtils.setInputs({
+        path: path,
+        key,
+        enableCrossOsArchive: false
+    });
+
+    const infoMock = jest.spyOn(core, "info");
+    const failedMock = jest.spyOn(core, "setFailed");
+    const stateMock = jest.spyOn(core, "saveState");
+    const setCacheHitOutputMock = jest.spyOn(core, "setOutput");
+    const restoreCacheMock = jest
+        .spyOn(cache, "restoreCache")
+        .mockImplementationOnce(() => {
+            return Promise.resolve(key);
+        });
+
+    await run(new StateProvider());
+
+    expect(restoreCacheMock).toHaveBeenCalledTimes(1);
+    expect(restoreCacheMock).toHaveBeenCalledWith([path], key, [], {}, false);
+
+    expect(stateMock).toHaveBeenCalledWith("CACHE_KEY", key);
+    expect(setCacheHitOutputMock).toHaveBeenCalledTimes(1);
+    expect(setCacheHitOutputMock).toHaveBeenCalledWith("cache-hit", "true");
+
+    expect(infoMock).toHaveBeenCalledWith(`Cache restored from key: ${key}`);
+    expect(failedMock).toHaveBeenCalledTimes(0);
+});
+
+test("restore with no path should fail", async () => {
+    const failedMock = jest.spyOn(core, "setFailed");
+    const restoreCacheMock = jest.spyOn(cache, "restoreCache");
+    await run(new StateProvider());
+    expect(restoreCacheMock).toHaveBeenCalledTimes(0);
+    // this input isn't necessary for restore b/c tarball contains entries relative to workspace
+    expect(failedMock).not.toHaveBeenCalledWith(
+        "Input required and not supplied: path"
+    );
+});
+
+test("restore with no key", async () => {
+    testUtils.setInput(Inputs.Path, "node_modules");
+    const failedMock = jest.spyOn(core, "setFailed");
+    const restoreCacheMock = jest.spyOn(cache, "restoreCache");
+    await run(new StateProvider());
+    expect(restoreCacheMock).toHaveBeenCalledTimes(0);
+    expect(failedMock).toHaveBeenCalledWith(
+        "Input required and not supplied: key"
+    );
+});
+
+test("restore with too many keys should fail", async () => {
+    const path = "node_modules";
+    const key = "node-test";
+    const restoreKeys = [...Array(20).keys()].map(x => x.toString());
+    testUtils.setInputs({
+        path: path,
+        key,
+        restoreKeys,
+        enableCrossOsArchive: false
+    });
+    const failedMock = jest.spyOn(core, "setFailed");
+    const restoreCacheMock = jest.spyOn(cache, "restoreCache");
+    await run(new StateProvider());
+    expect(restoreCacheMock).toHaveBeenCalledTimes(1);
+    expect(restoreCacheMock).toHaveBeenCalledWith(
+        [path],
+        key,
+        restoreKeys,
+        {},
+        false
+    );
+    expect(failedMock).toHaveBeenCalledWith(
+        `Key Validation Error: Keys are limited to a maximum of 10.`
+    );
+});
+
+test("restore with large key should fail", async () => {
+    const path = "node_modules";
+    const key = "foo".repeat(512); // Over the 512 character limit
+    testUtils.setInputs({
+        path: path,
+        key,
+        enableCrossOsArchive: false
+    });
+    const failedMock = jest.spyOn(core, "setFailed");
+    const restoreCacheMock = jest.spyOn(cache, "restoreCache");
+    await run(new StateProvider());
+    expect(restoreCacheMock).toHaveBeenCalledTimes(1);
+    expect(restoreCacheMock).toHaveBeenCalledWith([path], key, [], {}, false);
+    expect(failedMock).toHaveBeenCalledWith(
+        `Key Validation Error: ${key} cannot be larger than 512 characters.`
+    );
+});
+
+test("restore with invalid key should fail", async () => {
+    const path = "node_modules";
+    const key = "comma,comma";
+    testUtils.setInputs({
+        path: path,
+        key,
+        enableCrossOsArchive: false
+    });
+    const failedMock = jest.spyOn(core, "setFailed");
+    const restoreCacheMock = jest.spyOn(cache, "restoreCache");
+    await run(new StateProvider());
+    expect(restoreCacheMock).toHaveBeenCalledTimes(1);
+    expect(restoreCacheMock).toHaveBeenCalledWith([path], key, [], {}, false);
+    expect(failedMock).toHaveBeenCalledWith(
+        `Key Validation Error: ${key} cannot contain commas.`
+    );
+});
+
+test("restore with no cache found", async () => {
+    const path = "node_modules";
+    const key = "node-test";
+    testUtils.setInputs({
+        path: path,
+        key,
+        enableCrossOsArchive: false
+    });
+
+    const infoMock = jest.spyOn(core, "info");
+    const failedMock = jest.spyOn(core, "setFailed");
+    const stateMock = jest.spyOn(core, "saveState");
+    const restoreCacheMock = jest
+        .spyOn(cache, "restoreCache")
+        .mockImplementationOnce(() => {
+            return Promise.resolve(undefined);
+        });
+
+    await run(new StateProvider());
+
+    expect(restoreCacheMock).toHaveBeenCalledTimes(1);
+    expect(restoreCacheMock).toHaveBeenCalledWith([path], key, [], {}, false);
+
+    expect(stateMock).toHaveBeenCalledWith("CACHE_KEY", key);
+    expect(failedMock).toHaveBeenCalledTimes(0);
+
+    expect(infoMock).toHaveBeenCalledWith(
+        `Cache not found for input keys: ${key}`
+    );
+});
+
+test("restore with restore keys and no cache found", async () => {
+    const path = "node_modules";
+    const key = "node-test";
+    const restoreKey = "node-";
+    testUtils.setInputs({
+        path: path,
+        key,
+        restoreKeys: [restoreKey],
+        enableCrossOsArchive: false
+    });
+
+    const infoMock = jest.spyOn(core, "info");
+    const failedMock = jest.spyOn(core, "setFailed");
+    const stateMock = jest.spyOn(core, "saveState");
+    const restoreCacheMock = jest
+        .spyOn(cache, "restoreCache")
+        .mockImplementationOnce(() => {
+            return Promise.resolve(undefined);
+        });
+
+    await run(new StateProvider());
+
+    expect(restoreCacheMock).toHaveBeenCalledTimes(1);
+    expect(restoreCacheMock).toHaveBeenCalledWith(
+        [path],
+        key,
+        [restoreKey],
+        {},
+        false
+    );
+
+    expect(stateMock).toHaveBeenCalledWith("CACHE_KEY", key);
+    expect(failedMock).toHaveBeenCalledTimes(0);
+
+    expect(infoMock).toHaveBeenCalledWith(
+        `Cache not found for input keys: ${key}, ${restoreKey}`
+    );
+});
+
+test("restore with cache found for key", async () => {
+    const path = "node_modules";
+    const key = "node-test";
+    testUtils.setInputs({
+        path: path,
+        key,
+        enableCrossOsArchive: false
+    });
+
+    const infoMock = jest.spyOn(core, "info");
+    const failedMock = jest.spyOn(core, "setFailed");
+    const stateMock = jest.spyOn(core, "saveState");
+    const setCacheHitOutputMock = jest.spyOn(core, "setOutput");
+    const restoreCacheMock = jest
+        .spyOn(cache, "restoreCache")
+        .mockImplementationOnce(() => {
+            return Promise.resolve(key);
+        });
+
+    await run(new StateProvider());
+
+    expect(restoreCacheMock).toHaveBeenCalledTimes(1);
+    expect(restoreCacheMock).toHaveBeenCalledWith([path], key, [], {}, false);
+
+    expect(stateMock).toHaveBeenCalledWith("CACHE_KEY", key);
+    expect(setCacheHitOutputMock).toHaveBeenCalledTimes(1);
+    expect(setCacheHitOutputMock).toHaveBeenCalledWith("cache-hit", "true");
+
+    expect(infoMock).toHaveBeenCalledWith(`Cache restored from key: ${key}`);
+    expect(failedMock).toHaveBeenCalledTimes(0);
+});
+
+test("restore with cache found for restore key", async () => {
+    const path = "node_modules";
+    const key = "node-test";
+    const restoreKey = "node-";
+    testUtils.setInputs({
+        path: path,
+        key,
+        restoreKeys: [restoreKey],
+        enableCrossOsArchive: false
+    });
+
+    const infoMock = jest.spyOn(core, "info");
+    const failedMock = jest.spyOn(core, "setFailed");
+    const stateMock = jest.spyOn(core, "saveState");
+    const setCacheHitOutputMock = jest.spyOn(core, "setOutput");
+    const restoreCacheMock = jest
+        .spyOn(cache, "restoreCache")
+        .mockImplementationOnce(() => {
+            return Promise.resolve(restoreKey);
+        });
+
+    await run(new StateProvider());
+
+    expect(restoreCacheMock).toHaveBeenCalledTimes(1);
+    expect(restoreCacheMock).toHaveBeenCalledWith(
+        [path],
+        key,
+        [restoreKey],
+        {},
+        false
+    );
+
+    expect(stateMock).toHaveBeenCalledWith("CACHE_KEY", key);
+    expect(setCacheHitOutputMock).toHaveBeenCalledTimes(1);
+    expect(setCacheHitOutputMock).toHaveBeenCalledWith("cache-hit", "false");
+    expect(infoMock).toHaveBeenCalledWith(
+        `Cache restored from key: ${restoreKey}`
+    );
+    expect(failedMock).toHaveBeenCalledTimes(0);
+});

__tests__/restoreOnly.test.ts

@@ -0,0 +1,202 @@
+import * as cache from "@actions/cache";
+import * as core from "@actions/core";
+
+import { Events, RefKey } from "../src/constants";
+import run from "../src/restoreOnly";
+import * as actionUtils from "../src/utils/actionUtils";
+import * as testUtils from "../src/utils/testUtils";
+
+jest.mock("../src/utils/actionUtils");
+
+beforeAll(() => {
+    jest.spyOn(actionUtils, "isExactKeyMatch").mockImplementation(
+        (key, cacheResult) => {
+            const actualUtils = jest.requireActual("../src/utils/actionUtils");
+            return actualUtils.isExactKeyMatch(key, cacheResult);
+        }
+    );
+
+    jest.spyOn(actionUtils, "isValidEvent").mockImplementation(() => {
+        const actualUtils = jest.requireActual("../src/utils/actionUtils");
+        return actualUtils.isValidEvent();
+    });
+
+    jest.spyOn(actionUtils, "getInputAsArray").mockImplementation(
+        (name, options) => {
+            const actualUtils = jest.requireActual("../src/utils/actionUtils");
+            return actualUtils.getInputAsArray(name, options);
+        }
+    );
+
+    jest.spyOn(actionUtils, "getInputAsBool").mockImplementation(
+        (name, options) => {
+            return jest
+                .requireActual("../src/utils/actionUtils")
+                .getInputAsBool(name, options);
+        }
+    );
+});
+
+beforeEach(() => {
+    jest.restoreAllMocks();
+    process.env[Events.Key] = Events.Push;
+    process.env[RefKey] = "refs/heads/feature-branch";
+
+    jest.spyOn(actionUtils, "isGhes").mockImplementation(() => false);
+    jest.spyOn(actionUtils, "isCacheFeatureAvailable").mockImplementation(
+        () => true
+    );
+});
+
+afterEach(() => {
+    testUtils.clearInputs();
+    delete process.env[Events.Key];
+    delete process.env[RefKey];
+});
+
+test("restore with no cache found", async () => {
+    const path = "node_modules";
+    const key = "node-test";
+    testUtils.setInputs({
+        path: path,
+        key,
+        enableCrossOsArchive: false
+    });
+
+    const infoMock = jest.spyOn(core, "info");
+    const failedMock = jest.spyOn(core, "setFailed");
+    const outputMock = jest.spyOn(core, "setOutput");
+    const restoreCacheMock = jest
+        .spyOn(cache, "restoreCache")
+        .mockImplementationOnce(() => {
+            return Promise.resolve(undefined);
+        });
+
+    await run();
+
+    expect(restoreCacheMock).toHaveBeenCalledTimes(1);
+    expect(restoreCacheMock).toHaveBeenCalledWith([path], key, [], {}, false);
+
+    expect(outputMock).toHaveBeenCalledWith("cache-primary-key", key);
+    expect(outputMock).toHaveBeenCalledTimes(1);
+    expect(failedMock).toHaveBeenCalledTimes(0);
+
+    expect(infoMock).toHaveBeenCalledWith(
+        `Cache not found for input keys: ${key}`
+    );
+});
+
+test("restore with restore keys and no cache found", async () => {
+    const path = "node_modules";
+    const key = "node-test";
+    const restoreKey = "node-";
+    testUtils.setInputs({
+        path: path,
+        key,
+        restoreKeys: [restoreKey],
+        enableCrossOsArchive: false
+    });
+
+    const infoMock = jest.spyOn(core, "info");
+    const failedMock = jest.spyOn(core, "setFailed");
+    const outputMock = jest.spyOn(core, "setOutput");
+    const restoreCacheMock = jest
+        .spyOn(cache, "restoreCache")
+        .mockImplementationOnce(() => {
+            return Promise.resolve(undefined);
+        });
+
+    await run();
+
+    expect(restoreCacheMock).toHaveBeenCalledTimes(1);
+    expect(restoreCacheMock).toHaveBeenCalledWith(
+        [path],
+        key,
+        [restoreKey],
+        {},
+        false
+    );
+
+    expect(outputMock).toHaveBeenCalledWith("cache-primary-key", key);
+    expect(failedMock).toHaveBeenCalledTimes(0);
+
+    expect(infoMock).toHaveBeenCalledWith(
+        `Cache not found for input keys: ${key}, ${restoreKey}`
+    );
+});
+
+test("restore with cache found for key", async () => {
+    const path = "node_modules";
+    const key = "node-test";
+    testUtils.setInputs({
+        path: path,
+        key,
+        enableCrossOsArchive: false
+    });
+
+    const infoMock = jest.spyOn(core, "info");
+    const failedMock = jest.spyOn(core, "setFailed");
+    const outputMock = jest.spyOn(core, "setOutput");
+    const restoreCacheMock = jest
+        .spyOn(cache, "restoreCache")
+        .mockImplementationOnce(() => {
+            return Promise.resolve(key);
+        });
+
+    await run();
+
+    expect(restoreCacheMock).toHaveBeenCalledTimes(1);
+    expect(restoreCacheMock).toHaveBeenCalledWith([path], key, [], {}, false);
+
+    expect(outputMock).toHaveBeenCalledWith("cache-primary-key", key);
+    expect(outputMock).toHaveBeenCalledWith("cache-hit", "true");
+    expect(outputMock).toHaveBeenCalledWith("cache-matched-key", key);
+
+    expect(outputMock).toHaveBeenCalledTimes(3);
+
+    expect(infoMock).toHaveBeenCalledWith(`Cache restored from key: ${key}`);
+    expect(failedMock).toHaveBeenCalledTimes(0);
+});
+
+test("restore with cache found for restore key", async () => {
+    const path = "node_modules";
+    const key = "node-test";
+    const restoreKey = "node-";
+    testUtils.setInputs({
+        path: path,
+        key,
+        restoreKeys: [restoreKey],
+        enableCrossOsArchive: false
+    });
+
+    const infoMock = jest.spyOn(core, "info");
+    const failedMock = jest.spyOn(core, "setFailed");
+    const outputMock = jest.spyOn(core, "setOutput");
+    const restoreCacheMock = jest
+        .spyOn(cache, "restoreCache")
+        .mockImplementationOnce(() => {
+            return Promise.resolve(restoreKey);
+        });
+
+    await run();
+
+    expect(restoreCacheMock).toHaveBeenCalledTimes(1);
+    expect(restoreCacheMock).toHaveBeenCalledWith(
+        [path],
+        key,
+        [restoreKey],
+        {},
+        false
+    );
+
+    expect(outputMock).toHaveBeenCalledWith("cache-primary-key", key);
+    expect(outputMock).toHaveBeenCalledWith("cache-hit", "false");
+    expect(outputMock).toHaveBeenCalledWith("cache-matched-key", restoreKey);
+
+    expect(outputMock).toHaveBeenCalledTimes(3);
+
+    expect(infoMock).toHaveBeenCalledWith(
+        `Cache restored from key: ${restoreKey}`
+    );
+    expect(failedMock).toHaveBeenCalledTimes(0);
+});

__tests__/save.test.ts

@@ -15,8 +15,8 @@ beforeAll(() => {
         return jest.requireActual("@actions/core").getInput(name, options);
     });
 
-    jest.spyOn(actionUtils, "getCacheState").mockImplementation(() => {
-        return jest.requireActual("../src/utils/actionUtils").getCacheState();
+    jest.spyOn(core, "getState").mockImplementation(name => {
+        return jest.requireActual("@actions/core").getState(name);
     });
 
     jest.spyOn(actionUtils, "getInputAsArray").mockImplementation(
@@ -35,6 +35,14 @@ beforeAll(() => {
         }
     );
 
+    jest.spyOn(actionUtils, "getInputAsBool").mockImplementation(
+        (name, options) => {
+            return jest
+                .requireActual("../src/utils/actionUtils")
+                .getInputAsBool(name, options);
+        }
+    );
+
     jest.spyOn(actionUtils, "isExactKeyMatch").mockImplementation(
         (key, cacheResult) => {
             return jest
@@ -54,6 +62,9 @@ beforeEach(() => {
     process.env[RefKey] = "refs/heads/feature-branch";
 
     jest.spyOn(actionUtils, "isGhes").mockImplementation(() => false);
+    jest.spyOn(actionUtils, "isCacheFeatureAvailable").mockImplementation(
+        () => true
+    );
 });
 
 afterEach(() => {
@@ -62,246 +73,6 @@ afterEach(() => {
     delete process.env[RefKey];
 });
 
-test("save with invalid event outputs warning", async () => {
-    const logWarningMock = jest.spyOn(actionUtils, "logWarning");
-    const failedMock = jest.spyOn(core, "setFailed");
-    const invalidEvent = "commit_comment";
-    process.env[Events.Key] = invalidEvent;
-    delete process.env[RefKey];
-    await run();
-    expect(logWarningMock).toHaveBeenCalledWith(
-        `Event Validation Error: The event type ${invalidEvent} is not supported because it's not tied to a branch or tag ref.`
-    );
-    expect(failedMock).toHaveBeenCalledTimes(0);
-});
-
-test("save with no primary key in state outputs warning", async () => {
-    const logWarningMock = jest.spyOn(actionUtils, "logWarning");
-    const failedMock = jest.spyOn(core, "setFailed");
-
-    const savedCacheKey = "Linux-node-bb828da54c148048dd17899ba9fda624811cfb43";
-    jest.spyOn(core, "getState")
-        // Cache Entry State
-        .mockImplementationOnce(() => {
-            return savedCacheKey;
-        })
-        // Cache Key State
-        .mockImplementationOnce(() => {
-            return "";
-        });
-    const saveCacheMock = jest.spyOn(cache, "saveCache");
-
-    await run();
-
-    expect(saveCacheMock).toHaveBeenCalledTimes(0);
-    expect(logWarningMock).toHaveBeenCalledWith(
-        `Error retrieving key from state.`
-    );
-    expect(logWarningMock).toHaveBeenCalledTimes(1);
-    expect(failedMock).toHaveBeenCalledTimes(0);
-});
-
-test("save on GHES should no-op", async () => {
-    jest.spyOn(actionUtils, "isGhes").mockImplementation(() => true);
-
-    const logWarningMock = jest.spyOn(actionUtils, "logWarning");
-    const saveCacheMock = jest.spyOn(cache, "saveCache");
-
-    await run();
-
-    expect(saveCacheMock).toHaveBeenCalledTimes(0);
-    expect(logWarningMock).toHaveBeenCalledWith(
-        "Cache action is not supported on GHES. See https://github.com/actions/cache/issues/505 for more details"
-    );
-});
-
-test("save with exact match returns early", async () => {
-    const infoMock = jest.spyOn(core, "info");
-    const failedMock = jest.spyOn(core, "setFailed");
-
-    const primaryKey = "Linux-node-bb828da54c148048dd17899ba9fda624811cfb43";
-    const savedCacheKey = primaryKey;
-
-    jest.spyOn(core, "getState")
-        // Cache Entry State
-        .mockImplementationOnce(() => {
-            return savedCacheKey;
-        })
-        // Cache Key State
-        .mockImplementationOnce(() => {
-            return primaryKey;
-        });
-    const saveCacheMock = jest.spyOn(cache, "saveCache");
-
-    await run();
-
-    expect(saveCacheMock).toHaveBeenCalledTimes(0);
-    expect(infoMock).toHaveBeenCalledWith(
-        `Cache hit occurred on the primary key ${primaryKey}, not saving cache.`
-    );
-    expect(failedMock).toHaveBeenCalledTimes(0);
-});
-
-test("save with missing input outputs warning", async () => {
-    const logWarningMock = jest.spyOn(actionUtils, "logWarning");
-    const failedMock = jest.spyOn(core, "setFailed");
-
-    const primaryKey = "Linux-node-bb828da54c148048dd17899ba9fda624811cfb43";
-    const savedCacheKey = "Linux-node-";
-
-    jest.spyOn(core, "getState")
-        // Cache Entry State
-        .mockImplementationOnce(() => {
-            return savedCacheKey;
-        })
-        // Cache Key State
-        .mockImplementationOnce(() => {
-            return primaryKey;
-        });
-    const saveCacheMock = jest.spyOn(cache, "saveCache");
-
-    await run();
-
-    expect(saveCacheMock).toHaveBeenCalledTimes(0);
-    expect(logWarningMock).toHaveBeenCalledWith(
-        "Input required and not supplied: path"
-    );
-    expect(logWarningMock).toHaveBeenCalledTimes(1);
-    expect(failedMock).toHaveBeenCalledTimes(0);
-});
-
-test("save with large cache outputs warning", async () => {
-    const logWarningMock = jest.spyOn(actionUtils, "logWarning");
-    const failedMock = jest.spyOn(core, "setFailed");
-
-    const primaryKey = "Linux-node-bb828da54c148048dd17899ba9fda624811cfb43";
-    const savedCacheKey = "Linux-node-";
-
-    jest.spyOn(core, "getState")
-        // Cache Entry State
-        .mockImplementationOnce(() => {
-            return savedCacheKey;
-        })
-        // Cache Key State
-        .mockImplementationOnce(() => {
-            return primaryKey;
-        });
-
-    const inputPath = "node_modules";
-    testUtils.setInput(Inputs.Path, inputPath);
-
-    const saveCacheMock = jest
-        .spyOn(cache, "saveCache")
-        .mockImplementationOnce(() => {
-            throw new Error(
-                "Cache size of ~6144 MB (6442450944 B) is over the 5GB limit, not saving cache."
-            );
-        });
-
-    await run();
-
-    expect(saveCacheMock).toHaveBeenCalledTimes(1);
-    expect(saveCacheMock).toHaveBeenCalledWith(
-        [inputPath],
-        primaryKey,
-        expect.anything()
-    );
-
-    expect(logWarningMock).toHaveBeenCalledTimes(1);
-    expect(logWarningMock).toHaveBeenCalledWith(
-        "Cache size of ~6144 MB (6442450944 B) is over the 5GB limit, not saving cache."
-    );
-    expect(failedMock).toHaveBeenCalledTimes(0);
-});
-
-test("save with reserve cache failure outputs warning", async () => {
-    const infoMock = jest.spyOn(core, "info");
-    const logWarningMock = jest.spyOn(actionUtils, "logWarning");
-    const failedMock = jest.spyOn(core, "setFailed");
-
-    const primaryKey = "Linux-node-bb828da54c148048dd17899ba9fda624811cfb43";
-    const savedCacheKey = "Linux-node-";
-
-    jest.spyOn(core, "getState")
-        // Cache Entry State
-        .mockImplementationOnce(() => {
-            return savedCacheKey;
-        })
-        // Cache Key State
-        .mockImplementationOnce(() => {
-            return primaryKey;
-        });
-
-    const inputPath = "node_modules";
-    testUtils.setInput(Inputs.Path, inputPath);
-
-    const saveCacheMock = jest
-        .spyOn(cache, "saveCache")
-        .mockImplementationOnce(() => {
-            const actualCache = jest.requireActual("@actions/cache");
-            const error = new actualCache.ReserveCacheError(
-                `Unable to reserve cache with key ${primaryKey}, another job may be creating this cache.`
-            );
-            throw error;
-        });
-