Switch cache action to use the cache node package

__tests__/actionUtils.test.ts

@@ -1,98 +1,65 @@
 import * as core from "@actions/core";
-import * as io from "@actions/io";
-import { promises as fs } from "fs";
-import * as os from "os";
-import * as path from "path";
 
 import { Events, Outputs, RefKey, State } from "../src/constants";
-import { ArtifactCacheEntry } from "../src/contracts";
 import * as actionUtils from "../src/utils/actionUtils";
 
-import uuid = require("uuid");
-
 jest.mock("@actions/core");
-jest.mock("os");
-
-function getTempDir(): string {
-    return path.join(__dirname, "_temp", "actionUtils");
-}
 
 afterEach(() => {
     delete process.env[Events.Key];
     delete process.env[RefKey];
 });
 
-afterAll(async () => {
+test("isExactKeyMatch with undefined cache key returns false", () => {
-    delete process.env["GITHUB_WORKSPACE"];
-    await io.rmRF(getTempDir());
-});
-
-test("getArchiveFileSize returns file size", () => {
-    const filePath = path.join(__dirname, "__fixtures__", "helloWorld.txt");
-
-    const size = actionUtils.getArchiveFileSize(filePath);
-
-    expect(size).toBe(11);
-});
-
-test("isExactKeyMatch with undefined cache entry returns false", () => {
     const key = "linux-rust";
-    const cacheEntry = undefined;
+    const cacheKey = undefined;
 
-    expect(actionUtils.isExactKeyMatch(key, cacheEntry)).toBe(false);
+    expect(actionUtils.isExactKeyMatch(key, cacheKey)).toBe(false);
 });
 
-test("isExactKeyMatch with empty cache entry returns false", () => {
+test("isExactKeyMatch with empty cache key returns false", () => {
     const key = "linux-rust";
-    const cacheEntry: ArtifactCacheEntry = {};
+    const cacheKey = "";
 
-    expect(actionUtils.isExactKeyMatch(key, cacheEntry)).toBe(false);
+    expect(actionUtils.isExactKeyMatch(key, cacheKey)).toBe(false);
 });
 
 test("isExactKeyMatch with different keys returns false", () => {
     const key = "linux-rust";
-    const cacheEntry: ArtifactCacheEntry = {
+    const cacheKey = "linux-";
-        cacheKey: "linux-"
-    };
 
-    expect(actionUtils.isExactKeyMatch(key, cacheEntry)).toBe(false);
+    expect(actionUtils.isExactKeyMatch(key, cacheKey)).toBe(false);
 });
 
 test("isExactKeyMatch with different key accents returns false", () => {
     const key = "linux-áccent";
-    const cacheEntry: ArtifactCacheEntry = {
+    const cacheKey = "linux-accent";
-        cacheKey: "linux-accent"
-    };
 
-    expect(actionUtils.isExactKeyMatch(key, cacheEntry)).toBe(false);
+    expect(actionUtils.isExactKeyMatch(key, cacheKey)).toBe(false);
 });
 
 test("isExactKeyMatch with same key returns true", () => {
     const key = "linux-rust";
-    const cacheEntry: ArtifactCacheEntry = {
+    const cacheKey = "linux-rust";
-        cacheKey: "linux-rust"
-    };
 
-    expect(actionUtils.isExactKeyMatch(key, cacheEntry)).toBe(true);
+    expect(actionUtils.isExactKeyMatch(key, cacheKey)).toBe(true);
 });
 
 test("isExactKeyMatch with same key and different casing returns true", () => {
     const key = "linux-rust";
-    const cacheEntry: ArtifactCacheEntry = {
+    const cacheKey = "LINUX-RUST";
-        cacheKey: "LINUX-RUST"
-    };
 
-    expect(actionUtils.isExactKeyMatch(key, cacheEntry)).toBe(true);
+    expect(actionUtils.isExactKeyMatch(key, cacheKey)).toBe(true);
 });
 
 test("setOutputAndState with undefined entry to set cache-hit output", () => {
     const key = "linux-rust";
-    const cacheEntry = undefined;
+    const cacheKey = undefined;
 
     const setOutputMock = jest.spyOn(core, "setOutput");
     const saveStateMock = jest.spyOn(core, "saveState");
 
-    actionUtils.setOutputAndState(key, cacheEntry);
+    actionUtils.setOutputAndState(key, cacheKey);
 
     expect(setOutputMock).toHaveBeenCalledWith(Outputs.CacheHit, "false");
     expect(setOutputMock).toHaveBeenCalledTimes(1);
@@ -102,43 +69,33 @@ test("setOutputAndState with undefined entry to set cache-hit output", () => {
 
 test("setOutputAndState with exact match to set cache-hit output and state", () => {
     const key = "linux-rust";
-    const cacheEntry: ArtifactCacheEntry = {
+    const cacheKey = "linux-rust";
-        cacheKey: "linux-rust"
-    };
 
     const setOutputMock = jest.spyOn(core, "setOutput");
     const saveStateMock = jest.spyOn(core, "saveState");
 
-    actionUtils.setOutputAndState(key, cacheEntry);
+    actionUtils.setOutputAndState(key, cacheKey);
 
     expect(setOutputMock).toHaveBeenCalledWith(Outputs.CacheHit, "true");
     expect(setOutputMock).toHaveBeenCalledTimes(1);
 
-    expect(saveStateMock).toHaveBeenCalledWith(
+    expect(saveStateMock).toHaveBeenCalledWith(State.CacheResult, cacheKey);
-        State.CacheResult,
-        JSON.stringify(cacheEntry)
-    );
     expect(saveStateMock).toHaveBeenCalledTimes(1);
 });
 
 test("setOutputAndState with no exact match to set cache-hit output and state", () => {
     const key = "linux-rust";
-    const cacheEntry: ArtifactCacheEntry = {
+    const cacheKey = "linux-rust-bb828da54c148048dd17899ba9fda624811cfb43";
-        cacheKey: "linux-rust-bb828da54c148048dd17899ba9fda624811cfb43"
-    };
 
     const setOutputMock = jest.spyOn(core, "setOutput");
     const saveStateMock = jest.spyOn(core, "saveState");
 
-    actionUtils.setOutputAndState(key, cacheEntry);
+    actionUtils.setOutputAndState(key, cacheKey);
 
     expect(setOutputMock).toHaveBeenCalledWith(Outputs.CacheHit, "false");
     expect(setOutputMock).toHaveBeenCalledTimes(1);
 
-    expect(saveStateMock).toHaveBeenCalledWith(
+    expect(saveStateMock).toHaveBeenCalledWith(State.CacheResult, cacheKey);
-        State.CacheResult,
-        JSON.stringify(cacheEntry)
-    );
     expect(saveStateMock).toHaveBeenCalledTimes(1);
 });
 
@@ -157,20 +114,16 @@ test("getCacheState with no state returns undefined", () => {
 });
 
 test("getCacheState with valid state", () => {
-    const cacheEntry: ArtifactCacheEntry = {
+    const cacheKey = "Linux-node-bb828da54c148048dd17899ba9fda624811cfb43";
-        cacheKey: "Linux-node-bb828da54c148048dd17899ba9fda624811cfb43",
+
-        scope: "refs/heads/master",
-        creationTime: "2019-11-13T19:18:02+00:00",
-        archiveLocation: "www.actionscache.test/download"
-    };
     const getStateMock = jest.spyOn(core, "getState");
     getStateMock.mockImplementation(() => {
-        return JSON.stringify(cacheEntry);
+        return cacheKey;
     });
 
     const state = actionUtils.getCacheState();
 
-    expect(state).toEqual(cacheEntry);
+    expect(state).toEqual(cacheKey);
 
     expect(getStateMock).toHaveBeenCalledWith(State.CacheResult);
     expect(getStateMock).toHaveBeenCalledTimes(1);
@@ -195,137 +148,6 @@ test("isValidEvent returns false for event that does not have a branch or tag",
     expect(isValidEvent).toBe(false);
 });
 
-test("resolvePaths with no ~ in path", async () => {
-    const filePath = ".cache";
-
-    // Create the following layout:
-    //   cwd
-    //   cwd/.cache
-    //   cwd/.cache/file.txt
-
-    const root = path.join(getTempDir(), "no-tilde");
-    // tarball entries will be relative to workspace
-    process.env["GITHUB_WORKSPACE"] = root;
-
-    await fs.mkdir(root, { recursive: true });
-    const cache = path.join(root, ".cache");
-    await fs.mkdir(cache, { recursive: true });
-    await fs.writeFile(path.join(cache, "file.txt"), "cached");
-
-    const originalCwd = process.cwd();
-
-    try {
-        process.chdir(root);
-
-        const resolvedPath = await actionUtils.resolvePaths([filePath]);
-
-        const expectedPath = [filePath];
-        expect(resolvedPath).toStrictEqual(expectedPath);
-    } finally {
-        process.chdir(originalCwd);
-    }
-});
-
-test("resolvePaths with ~ in path", async () => {
-    const cacheDir = uuid();
-    const filePath = `~/${cacheDir}`;
-    // Create the following layout:
-    //   ~/uuid
-    //   ~/uuid/file.txt
-
-    const homedir = jest.requireActual("os").homedir();
-    const homedirMock = jest.spyOn(os, "homedir");
-    homedirMock.mockImplementation(() => {
-        return homedir;
-    });
-
-    const target = path.join(homedir, cacheDir);
-    await fs.mkdir(target, { recursive: true });
-    await fs.writeFile(path.join(target, "file.txt"), "cached");
-
-    const root = getTempDir();
-    process.env["GITHUB_WORKSPACE"] = root;
-
-    try {
-        const resolvedPath = await actionUtils.resolvePaths([filePath]);
-
-        const expectedPath = [path.relative(root, target)];
-        expect(resolvedPath).toStrictEqual(expectedPath);
-    } finally {
-        await io.rmRF(target);
-    }
-});
-
-test("resolvePaths with home not found", async () => {
-    const filePath = "~/.cache/yarn";
-    const homedirMock = jest.spyOn(os, "homedir");
-    homedirMock.mockImplementation(() => {
-        return "";
-    });
-
-    await expect(actionUtils.resolvePaths([filePath])).rejects.toThrow(
-        "Unable to determine HOME directory"
-    );
-});
-
-test("resolvePaths inclusion pattern returns found", async () => {
-    const pattern = "*.ts";
-    // Create the following layout:
-    //   inclusion-patterns
-    //   inclusion-patterns/miss.txt
-    //   inclusion-patterns/test.ts
-
-    const root = path.join(getTempDir(), "inclusion-patterns");
-    // tarball entries will be relative to workspace
-    process.env["GITHUB_WORKSPACE"] = root;
-
-    await fs.mkdir(root, { recursive: true });
-    await fs.writeFile(path.join(root, "miss.txt"), "no match");
-    await fs.writeFile(path.join(root, "test.ts"), "match");
-
-    const originalCwd = process.cwd();
-
-    try {
-        process.chdir(root);
-
-        const resolvedPath = await actionUtils.resolvePaths([pattern]);
-
-        const expectedPath = ["test.ts"];
-        expect(resolvedPath).toStrictEqual(expectedPath);
-    } finally {
-        process.chdir(originalCwd);
-    }
-});
-
-test("resolvePaths exclusion pattern returns not found", async () => {
-    const patterns = ["*.ts", "!test.ts"];
-    // Create the following layout:
-    //   exclusion-patterns
-    //   exclusion-patterns/miss.txt
-    //   exclusion-patterns/test.ts
-
-    const root = path.join(getTempDir(), "exclusion-patterns");
-    // tarball entries will be relative to workspace
-    process.env["GITHUB_WORKSPACE"] = root;
-
-    await fs.mkdir(root, { recursive: true });
-    await fs.writeFile(path.join(root, "miss.txt"), "no match");
-    await fs.writeFile(path.join(root, "test.ts"), "no match");
-
-    const originalCwd = process.cwd();
-
-    try {
-        process.chdir(root);
-
-        const resolvedPath = await actionUtils.resolvePaths(patterns);
-
-        const expectedPath = [];
-        expect(resolvedPath).toStrictEqual(expectedPath);
-    } finally {
-        process.chdir(originalCwd);
-    }
-});
-
 test("isValidEvent returns true for event that has a ref", () => {
     const event = Events.Push;
     process.env[Events.Key] = event;
@@ -335,16 +157,3 @@ test("isValidEvent returns true for event that has a ref", () => {
 
     expect(isValidEvent).toBe(true);
 });
-
-test("unlinkFile unlinks file", async () => {
-    const testDirectory = await fs.mkdtemp("unlinkFileTest");
-    const testFile = path.join(testDirectory, "test.txt");
-    await fs.writeFile(testFile, "hello world");
-
-    await actionUtils.unlinkFile(testFile);
-
-    // This should throw as testFile should not exist
-    await expect(fs.stat(testFile)).rejects.toThrow();
-
-    await fs.rmdir(testDirectory);
-});

__tests__/cacheHttpsClient.test.ts

@@ -1,177 +0,0 @@
-import { getCacheVersion, retry } from "../src/cacheHttpClient";
-import { CompressionMethod, Inputs } from "../src/constants";
-import * as testUtils from "../src/utils/testUtils";
-
-afterEach(() => {
-    testUtils.clearInputs();
-});
-
-test("getCacheVersion with path input and compression method undefined returns version", async () => {
-    testUtils.setInput(Inputs.Path, "node_modules");
-
-    const result = getCacheVersion();
-
-    expect(result).toEqual(
-        "b3e0c6cb5ecf32614eeb2997d905b9c297046d7cbf69062698f25b14b4cb0985"
-    );
-});
-
-test("getCacheVersion with zstd compression returns version", async () => {
-    testUtils.setInput(Inputs.Path, "node_modules");
-    const result = getCacheVersion(CompressionMethod.Zstd);
-
-    expect(result).toEqual(
-        "273877e14fd65d270b87a198edbfa2db5a43de567c9a548d2a2505b408befe24"
-    );
-});
-
-test("getCacheVersion with gzip compression does not change vesion", async () => {
-    testUtils.setInput(Inputs.Path, "node_modules");
-    const result = getCacheVersion(CompressionMethod.Gzip);
-
-    expect(result).toEqual(
-        "b3e0c6cb5ecf32614eeb2997d905b9c297046d7cbf69062698f25b14b4cb0985"
-    );
-});
-
-test("getCacheVersion with no input throws", async () => {
-    expect(() => getCacheVersion()).toThrow();
-});
-
-interface TestResponse {
-    statusCode: number;
-    result: string | null;
-}
-
-function handleResponse(
-    response: TestResponse | undefined
-): Promise<TestResponse> {
-    if (!response) {
-        fail("Retry method called too many times");
-    }
-
-    if (response.statusCode === 999) {
-        throw Error("Test Error");
-    } else {
-        return Promise.resolve(response);
-    }
-}
-
-async function testRetryExpectingResult(
-    responses: Array<TestResponse>,
-    expectedResult: string | null
-): Promise<void> {
-    responses = responses.reverse(); // Reverse responses since we pop from end
-
-    const actualResult = await retry(
-        "test",
-        () => handleResponse(responses.pop()),
-        (response: TestResponse) => response.statusCode
-    );
-
-    expect(actualResult.result).toEqual(expectedResult);
-}
-
-async function testRetryExpectingError(
-    responses: Array<TestResponse>
-): Promise<void> {
-    responses = responses.reverse(); // Reverse responses since we pop from end
-
-    expect(
-        retry(
-            "test",
-            () => handleResponse(responses.pop()),
-            (response: TestResponse) => response.statusCode
-        )
-    ).rejects.toBeInstanceOf(Error);
-}
-
-test("retry works on successful response", async () => {
-    await testRetryExpectingResult(
-        [
-            {
-                statusCode: 200,
-                result: "Ok"
-            }
-        ],
-        "Ok"
-    );
-});
-
-test("retry works after retryable status code", async () => {
-    await testRetryExpectingResult(
-        [
-            {
-                statusCode: 503,
-                result: null
-            },
-            {
-                statusCode: 200,
-                result: "Ok"
-            }
-        ],
-        "Ok"
-    );
-});
-
-test("retry fails after exhausting retries", async () => {
-    await testRetryExpectingError([
-        {
-            statusCode: 503,
-            result: null
-        },
-        {
-            statusCode: 503,
-            result: null
-        },
-        {
-            statusCode: 200,
-            result: "Ok"
-        }
-    ]);
-});
-
-test("retry fails after non-retryable status code", async () => {
-    await testRetryExpectingError([
-        {
-            statusCode: 500,
-            result: null
-        },
-        {
-            statusCode: 200,
-            result: "Ok"
-        }
-    ]);
-});
-
-test("retry works after error", async () => {
-    await testRetryExpectingResult(
-        [
-            {
-                statusCode: 999,
-                result: null
-            },
-            {
-                statusCode: 200,
-                result: "Ok"
-            }
-        ],
-        "Ok"
-    );
-});
-
-test("retry returns after client error", async () => {
-    await testRetryExpectingResult(
-        [
-            {
-                statusCode: 400,
-                result: null
-            },
-            {
-                statusCode: 200,
-                result: "Ok"
-            }
-        ],
-        null
-    );
-});

__tests__/restore.test.ts

@@ -1,22 +1,11 @@
+import * as cache from "@actions/cache";
 import * as core from "@actions/core";
-import * as path from "path";
 
-import * as cacheHttpClient from "../src/cacheHttpClient";
+import { Events, Inputs, RefKey } from "../src/constants";
-import {
-    CacheFilename,
-    CompressionMethod,
-    Events,
-    Inputs,
-    RefKey
-} from "../src/constants";
-import { ArtifactCacheEntry } from "../src/contracts";
 import run from "../src/restore";
-import * as tar from "../src/tar";
 import * as actionUtils from "../src/utils/actionUtils";
 import * as testUtils from "../src/utils/testUtils";
 
-jest.mock("../src/cacheHttpClient");
-jest.mock("../src/tar");
 jest.mock("../src/utils/actionUtils");
 
 beforeAll(() => {
@@ -31,11 +20,6 @@ beforeAll(() => {
         const actualUtils = jest.requireActual("../src/utils/actionUtils");
         return actualUtils.isValidEvent();
     });
-
-    jest.spyOn(actionUtils, "getCacheFileName").mockImplementation(cm => {
-        const actualUtils = jest.requireActual("../src/utils/actionUtils");
-        return actualUtils.getCacheFileName(cm);
-    });
 });
 
 beforeEach(() => {
@@ -64,7 +48,9 @@ test("restore with invalid event outputs warning", async () => {
 
 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"
@@ -74,71 +60,89 @@ test("restore with no path should fail", async () => {
 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: "node_modules",
+        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: "node_modules",
+        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: "node_modules",
+        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: "node_modules",
+        path: path,
         key
     });
 
     const infoMock = jest.spyOn(core, "info");
     const failedMock = jest.spyOn(core, "setFailed");
     const stateMock = jest.spyOn(core, "saveState");
-
+    const restoreCacheMock = jest
-    const clientMock = jest.spyOn(cacheHttpClient, "getCacheEntry");
+        .spyOn(cache, "restoreCache")
-    clientMock.mockImplementation(() => {
+        .mockImplementationOnce(() => {
-        return Promise.resolve(null);
+            return Promise.resolve(undefined);
         });
 
     await run();
 
+    expect(restoreCacheMock).toHaveBeenCalledTimes(1);
+    expect(restoreCacheMock).toHaveBeenCalledWith([path], key, []);
+
     expect(stateMock).toHaveBeenCalledWith("CACHE_KEY", key);
     expect(failedMock).toHaveBeenCalledTimes(0);
 
@@ -148,25 +152,28 @@ 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: "node_modules",
+        path: path,
         key
     });
 
     const logWarningMock = jest.spyOn(actionUtils, "logWarning");
     const failedMock = jest.spyOn(core, "setFailed");
     const stateMock = jest.spyOn(core, "saveState");
-
+    const restoreCacheMock = jest
-    const clientMock = jest.spyOn(cacheHttpClient, "getCacheEntry");
+        .spyOn(cache, "restoreCache")
-    clientMock.mockImplementation(() => {
+        .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);
@@ -179,10 +186,11 @@ test("restore with server error should fail", async () => {
 });
 
 test("restore with restore keys and no cache found", async () => {
+    const path = "node_modules";
     const key = "node-test";
     const restoreKey = "node-";
     testUtils.setInputs({
-        path: "node_modules",
+        path: path,
         key,
         restoreKeys: [restoreKey]
     });
@@ -190,14 +198,17 @@ test("restore with restore keys and no cache found", async () => {
     const infoMock = jest.spyOn(core, "info");
     const failedMock = jest.spyOn(core, "setFailed");
     const stateMock = jest.spyOn(core, "saveState");
-
+    const restoreCacheMock = jest
-    const clientMock = jest.spyOn(cacheHttpClient, "getCacheEntry");
+        .spyOn(cache, "restoreCache")
-    clientMock.mockImplementation(() => {
+        .mockImplementationOnce(() => {
-        return Promise.resolve(null);
+            return Promise.resolve(undefined);
         });
 
     await run();
 
+    expect(restoreCacheMock).toHaveBeenCalledTimes(1);
+    expect(restoreCacheMock).toHaveBeenCalledWith([path], key, [restoreKey]);
+
     expect(stateMock).toHaveBeenCalledWith("CACHE_KEY", key);
     expect(failedMock).toHaveBeenCalledTimes(0);
 
@@ -206,161 +217,43 @@ test("restore with restore keys and no cache found", async () => {
     );
 });
 
-test("restore with gzip compressed cache found", async () => {
+test("restore with cache found for key", async () => {
+    const path = "node_modules";
     const key = "node-test";
     testUtils.setInputs({
-        path: "node_modules",
+        path: path,
         key
     });
 
     const infoMock = jest.spyOn(core, "info");
     const failedMock = jest.spyOn(core, "setFailed");
     const stateMock = jest.spyOn(core, "saveState");
-
-    const cacheEntry: ArtifactCacheEntry = {
-        cacheKey: key,
-        scope: "refs/heads/master",
-        archiveLocation: "www.actionscache.test/download"
-    };
-    const getCacheMock = jest.spyOn(cacheHttpClient, "getCacheEntry");
-    getCacheMock.mockImplementation(() => {
-        return Promise.resolve(cacheEntry);
-    });
-    const tempPath = "/foo/bar";
-
-    const createTempDirectoryMock = jest.spyOn(
-        actionUtils,
-        "createTempDirectory"
-    );
-    createTempDirectoryMock.mockImplementation(() => {
-        return Promise.resolve(tempPath);
-    });
-
-    const archivePath = path.join(tempPath, CacheFilename.Gzip);
-    const setCacheStateMock = jest.spyOn(actionUtils, "setCacheState");
-    const downloadCacheMock = jest.spyOn(cacheHttpClient, "downloadCache");
-
-    const fileSize = 142;
-    const getArchiveFileSizeMock = jest
-        .spyOn(actionUtils, "getArchiveFileSize")
-        .mockReturnValue(fileSize);
-
-    const extractTarMock = jest.spyOn(tar, "extractTar");
-    const unlinkFileMock = jest.spyOn(actionUtils, "unlinkFile");
     const setCacheHitOutputMock = jest.spyOn(actionUtils, "setCacheHitOutput");
-
+    const restoreCacheMock = jest
-    const compression = CompressionMethod.Gzip;
+        .spyOn(cache, "restoreCache")
-    const getCompressionMock = jest
+        .mockImplementationOnce(() => {
-        .spyOn(actionUtils, "getCompressionMethod")
+            return Promise.resolve(key);
-        .mockReturnValue(Promise.resolve(compression));
+        });
 
     await run();
 
+    expect(restoreCacheMock).toHaveBeenCalledTimes(1);
+    expect(restoreCacheMock).toHaveBeenCalledWith([path], key, []);
+
     expect(stateMock).toHaveBeenCalledWith("CACHE_KEY", key);
-    expect(getCacheMock).toHaveBeenCalledWith([key], {
-        compressionMethod: compression
-    });
-    expect(setCacheStateMock).toHaveBeenCalledWith(cacheEntry);
-    expect(createTempDirectoryMock).toHaveBeenCalledTimes(1);
-    expect(downloadCacheMock).toHaveBeenCalledWith(
-        cacheEntry.archiveLocation,
-        archivePath
-    );
-    expect(getArchiveFileSizeMock).toHaveBeenCalledWith(archivePath);
-
-    expect(extractTarMock).toHaveBeenCalledTimes(1);
-    expect(extractTarMock).toHaveBeenCalledWith(archivePath, compression);
-
-    expect(unlinkFileMock).toHaveBeenCalledTimes(1);
-    expect(unlinkFileMock).toHaveBeenCalledWith(archivePath);
-
     expect(setCacheHitOutputMock).toHaveBeenCalledTimes(1);
     expect(setCacheHitOutputMock).toHaveBeenCalledWith(true);
 
     expect(infoMock).toHaveBeenCalledWith(`Cache restored from key: ${key}`);
     expect(failedMock).toHaveBeenCalledTimes(0);
-    expect(getCompressionMock).toHaveBeenCalledTimes(1);
-});
-
-test("restore with a pull request event and zstd compressed cache found", async () => {
-    const key = "node-test";
-    testUtils.setInputs({
-        path: "node_modules",
-        key
-    });
-
-    process.env[Events.Key] = Events.PullRequest;
-
-    const infoMock = jest.spyOn(core, "info");
-    const failedMock = jest.spyOn(core, "setFailed");
-    const stateMock = jest.spyOn(core, "saveState");
-
-    const cacheEntry: ArtifactCacheEntry = {
-        cacheKey: key,
-        scope: "refs/heads/master",
-        archiveLocation: "www.actionscache.test/download"
-    };
-    const getCacheMock = jest.spyOn(cacheHttpClient, "getCacheEntry");
-    getCacheMock.mockImplementation(() => {
-        return Promise.resolve(cacheEntry);
-    });
-    const tempPath = "/foo/bar";
-
-    const createTempDirectoryMock = jest.spyOn(
-        actionUtils,
-        "createTempDirectory"
-    );
-    createTempDirectoryMock.mockImplementation(() => {
-        return Promise.resolve(tempPath);
-    });
-
-    const archivePath = path.join(tempPath, CacheFilename.Zstd);
-    const setCacheStateMock = jest.spyOn(actionUtils, "setCacheState");
-    const downloadCacheMock = jest.spyOn(cacheHttpClient, "downloadCache");
-
-    const fileSize = 62915000;
-    const getArchiveFileSizeMock = jest
-        .spyOn(actionUtils, "getArchiveFileSize")
-        .mockReturnValue(fileSize);
-
-    const extractTarMock = jest.spyOn(tar, "extractTar");
-    const setCacheHitOutputMock = jest.spyOn(actionUtils, "setCacheHitOutput");
-    const compression = CompressionMethod.Zstd;
-    const getCompressionMock = jest
-        .spyOn(actionUtils, "getCompressionMethod")
-        .mockReturnValue(Promise.resolve(compression));
-
-    await run();
-
-    expect(stateMock).toHaveBeenCalledWith("CACHE_KEY", key);
-    expect(getCacheMock).toHaveBeenCalledWith([key], {
-        compressionMethod: compression
-    });
-    expect(setCacheStateMock).toHaveBeenCalledWith(cacheEntry);
-    expect(createTempDirectoryMock).toHaveBeenCalledTimes(1);
-    expect(downloadCacheMock).toHaveBeenCalledWith(
-        cacheEntry.archiveLocation,
-        archivePath
-    );
-    expect(getArchiveFileSizeMock).toHaveBeenCalledWith(archivePath);
-    expect(infoMock).toHaveBeenCalledWith(`Cache Size: ~60 MB (62915000 B)`);
-
-    expect(extractTarMock).toHaveBeenCalledTimes(1);
-    expect(extractTarMock).toHaveBeenCalledWith(archivePath, compression);
-
-    expect(setCacheHitOutputMock).toHaveBeenCalledTimes(1);
-    expect(setCacheHitOutputMock).toHaveBeenCalledWith(true);
-
-    expect(infoMock).toHaveBeenCalledWith(`Cache restored from key: ${key}`);
-    expect(failedMock).toHaveBeenCalledTimes(0);
-    expect(getCompressionMock).toHaveBeenCalledTimes(1);
 });
 
 test("restore with cache found for restore key", async () => {
+    const path = "node_modules";
     const key = "node-test";
     const restoreKey = "node-";
     testUtils.setInputs({
-        path: "node_modules",
+        path: path,
         key,
         restoreKeys: [restoreKey]
     });
@@ -368,60 +261,19 @@ test("restore with cache found for restore key", async () => {
     const infoMock = jest.spyOn(core, "info");
     const failedMock = jest.spyOn(core, "setFailed");
     const stateMock = jest.spyOn(core, "saveState");
-
-    const cacheEntry: ArtifactCacheEntry = {
-        cacheKey: restoreKey,
-        scope: "refs/heads/master",
-        archiveLocation: "www.actionscache.test/download"
-    };
-    const getCacheMock = jest.spyOn(cacheHttpClient, "getCacheEntry");
-    getCacheMock.mockImplementation(() => {
-        return Promise.resolve(cacheEntry);
-    });
-    const tempPath = "/foo/bar";
-
-    const createTempDirectoryMock = jest.spyOn(
-        actionUtils,
-        "createTempDirectory"
-    );
-    createTempDirectoryMock.mockImplementation(() => {
-        return Promise.resolve(tempPath);
-    });
-
-    const archivePath = path.join(tempPath, CacheFilename.Zstd);
-    const setCacheStateMock = jest.spyOn(actionUtils, "setCacheState");
-    const downloadCacheMock = jest.spyOn(cacheHttpClient, "downloadCache");
-
-    const fileSize = 142;
-    const getArchiveFileSizeMock = jest
-        .spyOn(actionUtils, "getArchiveFileSize")
-        .mockReturnValue(fileSize);
-
-    const extractTarMock = jest.spyOn(tar, "extractTar");
     const setCacheHitOutputMock = jest.spyOn(actionUtils, "setCacheHitOutput");
-    const compression = CompressionMethod.Zstd;
+    const restoreCacheMock = jest
-    const getCompressionMock = jest
+        .spyOn(cache, "restoreCache")
-        .spyOn(actionUtils, "getCompressionMethod")
+        .mockImplementationOnce(() => {
-        .mockReturnValue(Promise.resolve(compression));
+            return Promise.resolve(restoreKey);
+        });
 
     await run();
 
+    expect(restoreCacheMock).toHaveBeenCalledTimes(1);
+    expect(restoreCacheMock).toHaveBeenCalledWith([path], key, [restoreKey]);
+
     expect(stateMock).toHaveBeenCalledWith("CACHE_KEY", key);
-    expect(getCacheMock).toHaveBeenCalledWith([key, restoreKey], {
-        compressionMethod: compression
-    });
-    expect(setCacheStateMock).toHaveBeenCalledWith(cacheEntry);
-    expect(createTempDirectoryMock).toHaveBeenCalledTimes(1);
-    expect(downloadCacheMock).toHaveBeenCalledWith(
-        cacheEntry.archiveLocation,
-        archivePath
-    );
-    expect(getArchiveFileSizeMock).toHaveBeenCalledWith(archivePath);
-    expect(infoMock).toHaveBeenCalledWith(`Cache Size: ~0 MB (142 B)`);
-
-    expect(extractTarMock).toHaveBeenCalledTimes(1);
-    expect(extractTarMock).toHaveBeenCalledWith(archivePath, compression);
-
     expect(setCacheHitOutputMock).toHaveBeenCalledTimes(1);
     expect(setCacheHitOutputMock).toHaveBeenCalledWith(false);
 
@@ -429,5 +281,4 @@ test("restore with cache found for restore key", async () => {
         `Cache restored from key: ${restoreKey}`
     );
     expect(failedMock).toHaveBeenCalledTimes(0);
-    expect(getCompressionMock).toHaveBeenCalledTimes(1);
 });

__tests__/save.test.ts

@@ -1,23 +1,13 @@
+import * as cache from "@actions/cache";
 import * as core from "@actions/core";
-import * as path from "path";
 
-import * as cacheHttpClient from "../src/cacheHttpClient";
+import { Events, Inputs, RefKey } from "../src/constants";
-import {
-    CacheFilename,
-    CompressionMethod,
-    Events,
-    Inputs,
-    RefKey
-} from "../src/constants";
-import { ArtifactCacheEntry } from "../src/contracts";
 import run from "../src/save";
-import * as tar from "../src/tar";
 import * as actionUtils from "../src/utils/actionUtils";
 import * as testUtils from "../src/utils/testUtils";
 
 jest.mock("@actions/core");
-jest.mock("../src/cacheHttpClient");
+jest.mock("@actions/cache");
-jest.mock("../src/tar");
 jest.mock("../src/utils/actionUtils");
 
 beforeAll(() => {
@@ -41,21 +31,6 @@ beforeAll(() => {
         const actualUtils = jest.requireActual("../src/utils/actionUtils");
         return actualUtils.isValidEvent();
     });
-
-    jest.spyOn(actionUtils, "resolvePaths").mockImplementation(
-        async filePaths => {
-            return filePaths.map(x => path.resolve(x));
-        }
-    );
-
-    jest.spyOn(actionUtils, "createTempDirectory").mockImplementation(() => {
-        return Promise.resolve("/foo/bar");
-    });
-
-    jest.spyOn(actionUtils, "getCacheFileName").mockImplementation(cm => {
-        const actualUtils = jest.requireActual("../src/utils/actionUtils");
-        return actualUtils.getCacheFileName(cm);
-    });
 });
 
 beforeEach(() => {
@@ -86,25 +61,21 @@ test("save with no primary key in state outputs warning", async () => {
     const logWarningMock = jest.spyOn(actionUtils, "logWarning");
     const failedMock = jest.spyOn(core, "setFailed");
 
-    const cacheEntry: ArtifactCacheEntry = {
+    const savedCacheKey = "Linux-node-bb828da54c148048dd17899ba9fda624811cfb43";
-        cacheKey: "Linux-node-bb828da54c148048dd17899ba9fda624811cfb43",
-        scope: "refs/heads/master",
-        creationTime: "2019-11-13T19:18:02+00:00",
-        archiveLocation: "www.actionscache.test/download"
-    };
-
     jest.spyOn(core, "getState")
         // Cache Entry State
         .mockImplementationOnce(() => {
-            return JSON.stringify(cacheEntry);
+            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.`
     );
@@ -117,33 +88,25 @@ test("save with exact match returns early", async () => {
     const failedMock = jest.spyOn(core, "setFailed");
 
     const primaryKey = "Linux-node-bb828da54c148048dd17899ba9fda624811cfb43";
-    const cacheEntry: ArtifactCacheEntry = {
+    const savedCacheKey = primaryKey;
-        cacheKey: primaryKey,
-        scope: "refs/heads/master",
-        creationTime: "2019-11-13T19:18:02+00:00",
-        archiveLocation: "www.actionscache.test/download"
-    };
 
     jest.spyOn(core, "getState")
         // Cache Entry State
         .mockImplementationOnce(() => {
-            return JSON.stringify(cacheEntry);
+            return savedCacheKey;
         })
         // Cache Key State
         .mockImplementationOnce(() => {
             return primaryKey;
         });
-
+    const saveCacheMock = jest.spyOn(cache, "saveCache");
-    const createTarMock = jest.spyOn(tar, "createTar");
 
     await run();
 
+    expect(saveCacheMock).toHaveBeenCalledTimes(0);
     expect(infoMock).toHaveBeenCalledWith(
         `Cache hit occurred on the primary key ${primaryKey}, not saving cache.`
     );
-
-    expect(createTarMock).toHaveBeenCalledTimes(0);
-
     expect(failedMock).toHaveBeenCalledTimes(0);
 });
 
@@ -152,25 +115,22 @@ test("save with missing input outputs warning", async () => {
     const failedMock = jest.spyOn(core, "setFailed");
 
     const primaryKey = "Linux-node-bb828da54c148048dd17899ba9fda624811cfb43";
-    const cacheEntry: ArtifactCacheEntry = {
+    const savedCacheKey = "Linux-node-";
-        cacheKey: "Linux-node-",
-        scope: "refs/heads/master",
-        creationTime: "2019-11-13T19:18:02+00:00",
-        archiveLocation: "www.actionscache.test/download"
-    };
 
     jest.spyOn(core, "getState")
         // Cache Entry State
         .mockImplementationOnce(() => {
-            return JSON.stringify(cacheEntry);
+            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"
     );
@@ -183,17 +143,12 @@ test("save with large cache outputs warning", async () => {
     const failedMock = jest.spyOn(core, "setFailed");
 
     const primaryKey = "Linux-node-bb828da54c148048dd17899ba9fda624811cfb43";
-    const cacheEntry: ArtifactCacheEntry = {
+    const savedCacheKey = "Linux-node-";
-        cacheKey: "Linux-node-",
-        scope: "refs/heads/master",
-        creationTime: "2019-11-13T19:18:02+00:00",
-        archiveLocation: "www.actionscache.test/download"
-    };
 
     jest.spyOn(core, "getState")
         // Cache Entry State
         .mockImplementationOnce(() => {
-            return JSON.stringify(cacheEntry);
+            return savedCacheKey;
         })
         // Cache Key State
         .mockImplementationOnce(() => {
@@ -201,36 +156,26 @@ test("save with large cache outputs warning", async () => {
         });
 
     const inputPath = "node_modules";
-    const cachePaths = [path.resolve(inputPath)];
     testUtils.setInput(Inputs.Path, inputPath);
 
-    const createTarMock = jest.spyOn(tar, "createTar");
+    const saveCacheMock = jest
-
+        .spyOn(cache, "saveCache")
-    const cacheSize = 6 * 1024 * 1024 * 1024; //~6GB, over the 5GB limit
+        .mockImplementationOnce(() => {
-    jest.spyOn(actionUtils, "getArchiveFileSize").mockImplementationOnce(() => {
+            throw new Error(
-        return cacheSize;
+                "Cache size of ~6144 MB (6442450944 B) is over the 5GB limit, not saving cache."
+            );
         });
-    const compression = CompressionMethod.Gzip;
-    const getCompressionMock = jest
-        .spyOn(actionUtils, "getCompressionMethod")
-        .mockReturnValue(Promise.resolve(compression));
 
     await run();
 
-    const archiveFolder = "/foo/bar";
+    expect(saveCacheMock).toHaveBeenCalledTimes(1);
+    expect(saveCacheMock).toHaveBeenCalledWith([inputPath], primaryKey);
 
-    expect(createTarMock).toHaveBeenCalledTimes(1);
-    expect(createTarMock).toHaveBeenCalledWith(
-        archiveFolder,
-        cachePaths,
-        compression
-    );
     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);
-    expect(getCompressionMock).toHaveBeenCalledTimes(1);
 });
 
 test("save with reserve cache failure outputs warning", async () => {
@@ -239,17 +184,12 @@ test("save with reserve cache failure outputs warning", async () => {
     const failedMock = jest.spyOn(core, "setFailed");
 
     const primaryKey = "Linux-node-bb828da54c148048dd17899ba9fda624811cfb43";
-    const cacheEntry: ArtifactCacheEntry = {
+    const savedCacheKey = "Linux-node-";
-        cacheKey: "Linux-node-",
-        scope: "refs/heads/master",
-        creationTime: "2019-11-13T19:18:02+00:00",
-        archiveLocation: "www.actionscache.test/download"
-    };
 
     jest.spyOn(core, "getState")
         // Cache Entry State
         .mockImplementationOnce(() => {
-            return JSON.stringify(cacheEntry);
+            return savedCacheKey;
         })
         // Cache Key State
         .mockImplementationOnce(() => {
@@ -259,35 +199,26 @@ test("save with reserve cache failure outputs warning", async () => {
     const inputPath = "node_modules";
     testUtils.setInput(Inputs.Path, inputPath);
 
-    const reserveCacheMock = jest
+    const saveCacheMock = jest
-        .spyOn(cacheHttpClient, "reserveCache")
+        .spyOn(cache, "saveCache")
         .mockImplementationOnce(() => {
-            return Promise.resolve(-1);
+            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;
         });
 
-    const createTarMock = jest.spyOn(tar, "createTar");
-    const saveCacheMock = jest.spyOn(cacheHttpClient, "saveCache");
-    const compression = CompressionMethod.Zstd;
-    const getCompressionMock = jest
-        .spyOn(actionUtils, "getCompressionMethod")
-        .mockReturnValue(Promise.resolve(compression));
-
     await run();
 
-    expect(reserveCacheMock).toHaveBeenCalledTimes(1);
+    expect(saveCacheMock).toHaveBeenCalledTimes(1);
-    expect(reserveCacheMock).toHaveBeenCalledWith(primaryKey, {
+    expect(saveCacheMock).toHaveBeenCalledWith([inputPath], primaryKey);
-        compressionMethod: compression
-    });
 
     expect(infoMock).toHaveBeenCalledWith(
         `Unable to reserve cache with key ${primaryKey}, another job may be creating this cache.`
     );
-
-    expect(createTarMock).toHaveBeenCalledTimes(0);
-    expect(saveCacheMock).toHaveBeenCalledTimes(0);
     expect(logWarningMock).toHaveBeenCalledTimes(0);
     expect(failedMock).toHaveBeenCalledTimes(0);
-    expect(getCompressionMock).toHaveBeenCalledTimes(1);
 });
 
 test("save with server error outputs warning", async () => {
@@ -295,17 +226,12 @@ test("save with server error outputs warning", async () => {
     const failedMock = jest.spyOn(core, "setFailed");
 
     const primaryKey = "Linux-node-bb828da54c148048dd17899ba9fda624811cfb43";
-    const cacheEntry: ArtifactCacheEntry = {
+    const savedCacheKey = "Linux-node-";
-        cacheKey: "Linux-node-",
-        scope: "refs/heads/master",
-        creationTime: "2019-11-13T19:18:02+00:00",
-        archiveLocation: "www.actionscache.test/download"
-    };
 
     jest.spyOn(core, "getState")
         // Cache Entry State
         .mockImplementationOnce(() => {
-            return JSON.stringify(cacheEntry);
+            return savedCacheKey;
         })
         // Cache Key State
         .mockImplementationOnce(() => {
@@ -313,70 +239,35 @@ test("save with server error outputs warning", async () => {
         });
 
     const inputPath = "node_modules";
-    const cachePaths = [path.resolve(inputPath)];
     testUtils.setInput(Inputs.Path, inputPath);
 
-    const cacheId = 4;
-    const reserveCacheMock = jest
-        .spyOn(cacheHttpClient, "reserveCache")
-        .mockImplementationOnce(() => {
-            return Promise.resolve(cacheId);
-        });
-
-    const createTarMock = jest.spyOn(tar, "createTar");
-
     const saveCacheMock = jest
-        .spyOn(cacheHttpClient, "saveCache")
+        .spyOn(cache, "saveCache")
         .mockImplementationOnce(() => {
             throw new Error("HTTP Error Occurred");
         });
-    const compression = CompressionMethod.Zstd;
-    const getCompressionMock = jest
-        .spyOn(actionUtils, "getCompressionMethod")
-        .mockReturnValue(Promise.resolve(compression));
 
     await run();
 
-    expect(reserveCacheMock).toHaveBeenCalledTimes(1);
-    expect(reserveCacheMock).toHaveBeenCalledWith(primaryKey, {
-        compressionMethod: compression
-    });
-
-    const archiveFolder = "/foo/bar";
-    const archiveFile = path.join(archiveFolder, CacheFilename.Zstd);
-
-    expect(createTarMock).toHaveBeenCalledTimes(1);
-    expect(createTarMock).toHaveBeenCalledWith(
-        archiveFolder,
-        cachePaths,
-        compression
-    );
-
     expect(saveCacheMock).toHaveBeenCalledTimes(1);
-    expect(saveCacheMock).toHaveBeenCalledWith(cacheId, archiveFile);
+    expect(saveCacheMock).toHaveBeenCalledWith([inputPath], primaryKey);
 
     expect(logWarningMock).toHaveBeenCalledTimes(1);
     expect(logWarningMock).toHaveBeenCalledWith("HTTP Error Occurred");
 
     expect(failedMock).toHaveBeenCalledTimes(0);
-    expect(getCompressionMock).toHaveBeenCalledTimes(1);
 });
 
 test("save with valid inputs uploads a cache", async () => {
     const failedMock = jest.spyOn(core, "setFailed");
 
     const primaryKey = "Linux-node-bb828da54c148048dd17899ba9fda624811cfb43";
-    const cacheEntry: ArtifactCacheEntry = {
+    const savedCacheKey = "Linux-node-";
-        cacheKey: "Linux-node-",
-        scope: "refs/heads/master",
-        creationTime: "2019-11-13T19:18:02+00:00",
-        archiveLocation: "www.actionscache.test/download"
-    };
 
     jest.spyOn(core, "getState")
         // Cache Entry State
         .mockImplementationOnce(() => {
-            return JSON.stringify(cacheEntry);
+            return savedCacheKey;
         })
         // Cache Key State
         .mockImplementationOnce(() => {
@@ -384,44 +275,19 @@ test("save with valid inputs uploads a cache", async () => {
         });
 
     const inputPath = "node_modules";
-    const cachePaths = [path.resolve(inputPath)];
     testUtils.setInput(Inputs.Path, inputPath);
 
     const cacheId = 4;
-    const reserveCacheMock = jest
+    const saveCacheMock = jest
-        .spyOn(cacheHttpClient, "reserveCache")
+        .spyOn(cache, "saveCache")
         .mockImplementationOnce(() => {
             return Promise.resolve(cacheId);
         });
 
-    const createTarMock = jest.spyOn(tar, "createTar");
-
-    const saveCacheMock = jest.spyOn(cacheHttpClient, "saveCache");
-    const compression = CompressionMethod.Zstd;
-    const getCompressionMock = jest
-        .spyOn(actionUtils, "getCompressionMethod")
-        .mockReturnValue(Promise.resolve(compression));
-
     await run();
 
-    expect(reserveCacheMock).toHaveBeenCalledTimes(1);
-    expect(reserveCacheMock).toHaveBeenCalledWith(primaryKey, {
-        compressionMethod: compression
-    });
-
-    const archiveFolder = "/foo/bar";
-    const archiveFile = path.join(archiveFolder, CacheFilename.Zstd);
-
-    expect(createTarMock).toHaveBeenCalledTimes(1);
-    expect(createTarMock).toHaveBeenCalledWith(
-        archiveFolder,
-        cachePaths,
-        compression
-    );
-
     expect(saveCacheMock).toHaveBeenCalledTimes(1);
-    expect(saveCacheMock).toHaveBeenCalledWith(cacheId, archiveFile);
+    expect(saveCacheMock).toHaveBeenCalledWith([inputPath], primaryKey);
 
     expect(failedMock).toHaveBeenCalledTimes(0);
-    expect(getCompressionMock).toHaveBeenCalledTimes(1);
 });

__tests__/tar.test.ts

@@ -1,204 +0,0 @@
-import * as exec from "@actions/exec";
-import * as io from "@actions/io";
-import * as path from "path";
-
-import { CacheFilename, CompressionMethod } from "../src/constants";
-import * as tar from "../src/tar";
-import * as utils from "../src/utils/actionUtils";
-
-import fs = require("fs");
-
-jest.mock("@actions/exec");
-jest.mock("@actions/io");
-
-const IS_WINDOWS = process.platform === "win32";
-
-function getTempDir(): string {
-    return path.join(__dirname, "_temp", "tar");
-}
-
-beforeAll(async () => {
-    jest.spyOn(io, "which").mockImplementation(tool => {
-        return Promise.resolve(tool);
-    });
-
-    process.env["GITHUB_WORKSPACE"] = process.cwd();
-    await jest.requireActual("@actions/io").rmRF(getTempDir());
-});
-
-afterAll(async () => {
-    delete process.env["GITHUB_WORKSPACE"];
-    await jest.requireActual("@actions/io").rmRF(getTempDir());
-});
-
-test("zstd extract tar", async () => {
-    const mkdirMock = jest.spyOn(io, "mkdirP");
-    const execMock = jest.spyOn(exec, "exec");
-
-    const archivePath = IS_WINDOWS
-        ? `${process.env["windir"]}\\fakepath\\cache.tar`
-        : "cache.tar";
-    const workspace = process.env["GITHUB_WORKSPACE"];
-
-    await tar.extractTar(archivePath, CompressionMethod.Zstd);
-
-    expect(mkdirMock).toHaveBeenCalledWith(workspace);
-    const tarPath = IS_WINDOWS
-        ? `${process.env["windir"]}\\System32\\tar.exe`
-        : "tar";
-    expect(execMock).toHaveBeenCalledTimes(1);
-    expect(execMock).toHaveBeenCalledWith(
-        `"${tarPath}"`,
-        [
-            "--use-compress-program",
-            "zstd -d --long=30",
-            "-xf",
-            IS_WINDOWS ? archivePath.replace(/\\/g, "/") : archivePath,
-            "-P",
-            "-C",
-            IS_WINDOWS ? workspace?.replace(/\\/g, "/") : workspace
-        ],
-        { cwd: undefined }
-    );
-});
-
-test("gzip extract tar", async () => {
-    const mkdirMock = jest.spyOn(io, "mkdirP");
-    const execMock = jest.spyOn(exec, "exec");
-    const archivePath = IS_WINDOWS
-        ? `${process.env["windir"]}\\fakepath\\cache.tar`
-        : "cache.tar";
-    const workspace = process.env["GITHUB_WORKSPACE"];
-
-    await tar.extractTar(archivePath, CompressionMethod.Gzip);
-
-    expect(mkdirMock).toHaveBeenCalledWith(workspace);
-    const tarPath = IS_WINDOWS
-        ? `${process.env["windir"]}\\System32\\tar.exe`
-        : "tar";
-    expect(execMock).toHaveBeenCalledTimes(1);
-    expect(execMock).toHaveBeenCalledWith(
-        `"${tarPath}"`,
-        [
-            "-z",
-            "-xf",
-            IS_WINDOWS ? archivePath.replace(/\\/g, "/") : archivePath,
-            "-P",
-            "-C",
-            IS_WINDOWS ? workspace?.replace(/\\/g, "/") : workspace
-        ],
-        { cwd: undefined }
-    );
-});
-
-test("gzip extract GNU tar on windows", async () => {
-    if (IS_WINDOWS) {
-        jest.spyOn(fs, "existsSync").mockReturnValueOnce(false);
-
-        const isGnuMock = jest
-            .spyOn(utils, "useGnuTar")
-            .mockReturnValue(Promise.resolve(true));
-        const execMock = jest.spyOn(exec, "exec");
-        const archivePath = `${process.env["windir"]}\\fakepath\\cache.tar`;
-        const workspace = process.env["GITHUB_WORKSPACE"];
-
-        await tar.extractTar(archivePath, CompressionMethod.Gzip);
-
-        expect(isGnuMock).toHaveBeenCalledTimes(1);
-        expect(execMock).toHaveBeenCalledTimes(1);
-        expect(execMock).toHaveBeenCalledWith(
-            `"tar"`,
-            [
-                "-z",
-                "-xf",
-                archivePath.replace(/\\/g, "/"),
-                "-P",
-                "-C",
-                workspace?.replace(/\\/g, "/"),
-                "--force-local"
-            ],
-            { cwd: undefined }
-        );
-    }
-});
-
-test("zstd create tar", async () => {
-    const execMock = jest.spyOn(exec, "exec");
-
-    const archiveFolder = getTempDir();
-    const workspace = process.env["GITHUB_WORKSPACE"];
-    const sourceDirectories = ["~/.npm/cache", `${workspace}/dist`];
-
-    await fs.promises.mkdir(archiveFolder, { recursive: true });
-
-    await tar.createTar(
-        archiveFolder,
-        sourceDirectories,
-        CompressionMethod.Zstd
-    );
-
-    const tarPath = IS_WINDOWS
-        ? `${process.env["windir"]}\\System32\\tar.exe`
-        : "tar";
-
-    expect(execMock).toHaveBeenCalledTimes(1);
-    expect(execMock).toHaveBeenCalledWith(
-        `"${tarPath}"`,
-        [
-            "--use-compress-program",
-            "zstd -T0 --long=30",
-            "-cf",
-            IS_WINDOWS
-                ? CacheFilename.Zstd.replace(/\\/g, "/")
-                : CacheFilename.Zstd,
-            "-P",
-            "-C",
-            IS_WINDOWS ? workspace?.replace(/\\/g, "/") : workspace,
-            "--files-from",
-            "manifest.txt"
-        ],
-        {
-            cwd: archiveFolder
-        }
-    );
-});
-
-test("gzip create tar", async () => {
-    const execMock = jest.spyOn(exec, "exec");
-
-    const archiveFolder = getTempDir();
-    const workspace = process.env["GITHUB_WORKSPACE"];
-    const sourceDirectories = ["~/.npm/cache", `${workspace}/dist`];
-
-    await fs.promises.mkdir(archiveFolder, { recursive: true });
-
-    await tar.createTar(
-        archiveFolder,
-        sourceDirectories,
-        CompressionMethod.Gzip
-    );
-
-    const tarPath = IS_WINDOWS
-        ? `${process.env["windir"]}\\System32\\tar.exe`
-        : "tar";
-
-    expect(execMock).toHaveBeenCalledTimes(1);
-    expect(execMock).toHaveBeenCalledWith(
-        `"${tarPath}"`,
-        [
-            "-z",
-            "-cf",
-            IS_WINDOWS
-                ? CacheFilename.Gzip.replace(/\\/g, "/")
-                : CacheFilename.Gzip,
-            "-P",
-            "-C",
-            IS_WINDOWS ? workspace?.replace(/\\/g, "/") : workspace,
-            "--files-from",
-            "manifest.txt"
-        ],
-        {
-            cwd: archiveFolder
-        }
-    );
-});

package-lock.json

@@ -4,6 +4,26 @@
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
+    "@actions/cache": {
+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/@actions/cache/-/cache-0.1.0.tgz",
+      "integrity": "sha512-mP4t+AdMqSgx7hQn9fp3b1xWD7lIAqKj2IQ2MCgiyB6ivIBeXxnAVupjjGpaTlCQCmnL0E/pO51QAM1uvd4PRg==",
+      "requires": {
+        "@actions/core": "^1.2.4",
+        "@actions/exec": "^1.0.1",
+        "@actions/glob": "^0.1.0",
+        "@actions/http-client": "^1.0.8",
+        "@actions/io": "^1.0.1",
+        "uuid": "^3.3.3"
+      },
+      "dependencies": {
+        "@actions/core": {
+          "version": "1.2.4",
+          "resolved": "https://registry.npmjs.org/@actions/core/-/core-1.2.4.tgz",
+          "integrity": "sha512-YJCEq8BE3CdN8+7HPZ/4DxJjk/OkZV2FFIf+DlZTC/4iBlzYCD5yjRR6eiOS5llO11zbRltIRuKAjMKaWTE6cg=="
+        }
+      }
+    },
     "@actions/core": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/@actions/core/-/core-1.2.0.tgz",
@@ -913,15 +933,6 @@
       "integrity": "sha512-l42BggppR6zLmpfU6fq9HEa2oGPEI8yrSPL3GITjfRInppYFahObbIQOQK3UGxEnyQpltZLaPe75046NOZQikw==",
       "dev": true
     },
-    "@types/uuid": {
-      "version": "3.4.5",
-      "resolved": "https://registry.npmjs.org/@types/uuid/-/uuid-3.4.5.tgz",
-      "integrity": "sha512-MNL15wC3EKyw1VLF+RoVO4hJJdk9t/Hlv3rt1OL65Qvuadm4BYo6g9ZJQqoq7X8NBFSsQXgAujWciovh2lpVjA==",
-      "dev": true,
-      "requires": {
-        "@types/node": "*"
-      }
-    },
     "@types/yargs": {
       "version": "12.0.12",
       "resolved": "https://registry.npmjs.org/@types/yargs/-/yargs-12.0.12.tgz",

package.json

@@ -25,16 +25,13 @@
   "dependencies": {
     "@actions/core": "^1.2.0",
     "@actions/exec": "^1.0.1",
-    "@actions/glob": "^0.1.0",
-    "@actions/http-client": "^1.0.8",
     "@actions/io": "^1.0.1",
-    "uuid": "^3.3.3"
+    "@actions/cache": "^0.1.0"
   },
   "devDependencies": {
     "@types/jest": "^24.0.13",
     "@types/nock": "^11.1.0",
     "@types/node": "^12.0.4",
-    "@types/uuid": "^3.4.5",
     "@typescript-eslint/eslint-plugin": "^2.7.0",
     "@typescript-eslint/parser": "^2.7.0",
     "@zeit/ncc": "^0.20.5",

src/cacheHttpClient.ts

@@ -1,424 +0,0 @@
-import * as core from "@actions/core";
-import { HttpClient, HttpCodes } from "@actions/http-client";
-import { BearerCredentialHandler } from "@actions/http-client/auth";
-import {
-    IHttpClientResponse,
-    IRequestOptions,
-    ITypedResponse
-} from "@actions/http-client/interfaces";
-import * as crypto from "crypto";
-import * as fs from "fs";
-import * as stream from "stream";
-import * as util from "util";
-
-import { CompressionMethod, Inputs, SocketTimeout } from "./constants";
-import {
-    ArtifactCacheEntry,
-    CacheOptions,
-    CommitCacheRequest,
-    ReserveCacheRequest,
-    ReserveCacheResponse
-} from "./contracts";
-import * as utils from "./utils/actionUtils";
-
-const versionSalt = "1.0";
-
-function isSuccessStatusCode(statusCode?: number): boolean {
-    if (!statusCode) {
-        return false;
-    }
-    return statusCode >= 200 && statusCode < 300;
-}
-
-function isServerErrorStatusCode(statusCode?: number): boolean {
-    if (!statusCode) {
-        return true;
-    }
-    return statusCode >= 500;
-}
-
-function isRetryableStatusCode(statusCode?: number): boolean {
-    if (!statusCode) {
-        return false;
-    }
-    const retryableStatusCodes = [
-        HttpCodes.BadGateway,
-        HttpCodes.ServiceUnavailable,
-        HttpCodes.GatewayTimeout
-    ];
-    return retryableStatusCodes.includes(statusCode);
-}
-
-function getCacheApiUrl(resource: string): string {
-    // Ideally we just use ACTIONS_CACHE_URL
-    const baseUrl: string = (
-        process.env["ACTIONS_CACHE_URL"] ||
-        process.env["ACTIONS_RUNTIME_URL"] ||
-        ""
-    ).replace("pipelines", "artifactcache");
-    if (!baseUrl) {
-        throw new Error(
-            "Cache Service Url not found, unable to restore cache."
-        );
-    }
-
-    const url = `${baseUrl}_apis/artifactcache/${resource}`;
-    core.debug(`Resource Url: ${url}`);
-    return url;
-}
-
-function createAcceptHeader(type: string, apiVersion: string): string {
-    return `${type};api-version=${apiVersion}`;
-}
-
-function getRequestOptions(): IRequestOptions {
-    const requestOptions: IRequestOptions = {
-        headers: {
-            Accept: createAcceptHeader("application/json", "6.0-preview.1")
-        }
-    };
-
-    return requestOptions;
-}
-
-function createHttpClient(): HttpClient {
-    const token = process.env["ACTIONS_RUNTIME_TOKEN"] || "";
-    const bearerCredentialHandler = new BearerCredentialHandler(token);
-
-    return new HttpClient(
-        "actions/cache",
-        [bearerCredentialHandler],
-        getRequestOptions()
-    );
-}
-
-export function getCacheVersion(compressionMethod?: CompressionMethod): string {
-    const components = [core.getInput(Inputs.Path, { required: true })].concat(
-        compressionMethod == CompressionMethod.Zstd ? [compressionMethod] : []
-    );
-
-    // Add salt to cache version to support breaking changes in cache entry
-    components.push(versionSalt);
-
-    return crypto
-        .createHash("sha256")
-        .update(components.join("|"))
-        .digest("hex");
-}
-
-export async function retry<T>(
-    name: string,
-    method: () => Promise<T>,
-    getStatusCode: (T) => number | undefined,
-    maxAttempts = 2
-): Promise<T> {
-    let response: T | undefined = undefined;
-    let statusCode: number | undefined = undefined;
-    let isRetryable = false;
-    let errorMessage = "";
-    let attempt = 1;
-
-    while (attempt <= maxAttempts) {
-        try {
-            response = await method();
-            statusCode = getStatusCode(response);
-
-            if (!isServerErrorStatusCode(statusCode)) {
-                return response;
-            }
-
-            isRetryable = isRetryableStatusCode(statusCode);
-            errorMessage = `Cache service responded with ${statusCode}`;
-        } catch (error) {
-            isRetryable = true;
-            errorMessage = error.message;
-        }
-
-        core.debug(
-            `${name} - Attempt ${attempt} of ${maxAttempts} failed with error: ${errorMessage}`
-        );
-
-        if (!isRetryable) {
-            core.debug(`${name} - Error is not retryable`);
-            break;
-        }
-
-        attempt++;
-    }
-
-    throw Error(`${name} failed: ${errorMessage}`);
-}
-
-export async function retryTypedResponse<T>(
-    name: string,
-    method: () => Promise<ITypedResponse<T>>,
-    maxAttempts = 2
-): Promise<ITypedResponse<T>> {
-    return await retry(
-        name,
-        method,
-        (response: ITypedResponse<T>) => response.statusCode,
-        maxAttempts
-    );
-}
-
-export async function retryHttpClientResponse<T>(
-    name: string,
-    method: () => Promise<IHttpClientResponse>,
-    maxAttempts = 2
-): Promise<IHttpClientResponse> {
-    return await retry(
-        name,
-        method,
-        (response: IHttpClientResponse) => response.message.statusCode,
-        maxAttempts
-    );
-}
-
-export async function getCacheEntry(
-    keys: string[],
-    options?: CacheOptions
-): Promise<ArtifactCacheEntry | null> {
-    const httpClient = createHttpClient();
-    const version = getCacheVersion(options?.compressionMethod);
-    const resource = `cache?keys=${encodeURIComponent(
-        keys.join(",")
-    )}&version=${version}`;
-
-    const response = await retryTypedResponse("getCacheEntry", () =>
-        httpClient.getJson<ArtifactCacheEntry>(getCacheApiUrl(resource))
-    );
-    if (response.statusCode === 204) {
-        return null;
-    }
-    if (!isSuccessStatusCode(response.statusCode)) {
-        throw new Error(`Cache service responded with ${response.statusCode}`);
-    }
-
-    const cacheResult = response.result;
-    const cacheDownloadUrl = cacheResult?.archiveLocation;
-    if (!cacheDownloadUrl) {
-        throw new Error("Cache not found.");
-    }
-    core.setSecret(cacheDownloadUrl);
-    core.debug(`Cache Result:`);
-    core.debug(JSON.stringify(cacheResult));
-
-    return cacheResult;
-}
-
-async function pipeResponseToStream(
-    response: IHttpClientResponse,
-    output: NodeJS.WritableStream
-): Promise<void> {
-    const pipeline = util.promisify(stream.pipeline);
-    await pipeline(response.message, output);
-}
-
-export async function downloadCache(
-    archiveLocation: string,
-    archivePath: string
-): Promise<void> {
-    const stream = fs.createWriteStream(archivePath);
-    const httpClient = new HttpClient("actions/cache");
-    const downloadResponse = await retryHttpClientResponse(
-        "downloadCache",
-        () => httpClient.get(archiveLocation)
-    );
-
-    // Abort download if no traffic received over the socket.
-    downloadResponse.message.socket.setTimeout(SocketTimeout, () => {
-        downloadResponse.message.destroy();
-        core.debug(
-            `Aborting download, socket timed out after ${SocketTimeout} ms`
-        );
-    });
-
-    await pipeResponseToStream(downloadResponse, stream);
-
-    // Validate download size.
-    const contentLengthHeader =
-        downloadResponse.message.headers["content-length"];
-
-    if (contentLengthHeader) {
-        const expectedLength = parseInt(contentLengthHeader);
-        const actualLength = utils.getArchiveFileSize(archivePath);
-
-        if (actualLength != expectedLength) {
-            throw new Error(
-                `Incomplete download. Expected file size: ${expectedLength}, actual file size: ${actualLength}`
-            );
-        }
-    } else {
-        core.debug("Unable to validate download, no Content-Length header");
-    }
-}
-
-// Reserve Cache
-export async function reserveCache(
-    key: string,
-    options?: CacheOptions
-): Promise<number> {
-    const httpClient = createHttpClient();
-    const version = getCacheVersion(options?.compressionMethod);
-
-    const reserveCacheRequest: ReserveCacheRequest = {
-        key,
-        version
-    };
-    const response = await retryTypedResponse("reserveCache", () =>
-        httpClient.postJson<ReserveCacheResponse>(
-            getCacheApiUrl("caches"),
-            reserveCacheRequest
-        )
-    );
-    return response?.result?.cacheId ?? -1;
-}
-
-function getContentRange(start: number, end: number): string {
-    // Format: `bytes start-end/filesize
-    // start and end are inclusive
-    // filesize can be *
-    // For a 200 byte chunk starting at byte 0:
-    // Content-Range: bytes 0-199/*
-    return `bytes ${start}-${end}/*`;
-}
-
-async function uploadChunk(
-    httpClient: HttpClient,
-    resourceUrl: string,
-    openStream: () => NodeJS.ReadableStream,
-    start: number,
-    end: number
-): Promise<void> {
-    core.debug(
-        `Uploading chunk of size ${end -
-            start +
-            1} bytes at offset ${start} with content range: ${getContentRange(
-            start,
-            end
-        )}`
-    );
-    const additionalHeaders = {
-        "Content-Type": "application/octet-stream",
-        "Content-Range": getContentRange(start, end)
-    };
-
-    await retryHttpClientResponse(
-        `uploadChunk (start: ${start}, end: ${end})`,
-        () =>
-            httpClient.sendStream(
-                "PATCH",
-                resourceUrl,
-                openStream(),
-                additionalHeaders
-            )
-    );
-}
-
-function parseEnvNumber(key: string): number | undefined {
-    const value = Number(process.env[key]);
-    if (Number.isNaN(value) || value < 0) {
-        return undefined;
-    }
-    return value;
-}
-
-async function uploadFile(
-    httpClient: HttpClient,
-    cacheId: number,
-    archivePath: string
-): Promise<void> {
-    // Upload Chunks
-    const fileSize = fs.statSync(archivePath).size;
-    const resourceUrl = getCacheApiUrl(`caches/${cacheId.toString()}`);
-    const fd = fs.openSync(archivePath, "r");
-
-    const concurrency = parseEnvNumber("CACHE_UPLOAD_CONCURRENCY") ?? 4; // # of HTTP requests in parallel
-    const MAX_CHUNK_SIZE =
-        parseEnvNumber("CACHE_UPLOAD_CHUNK_SIZE") ?? 32 * 1024 * 1024; // 32 MB Chunks
-    core.debug(`Concurrency: ${concurrency} and Chunk Size: ${MAX_CHUNK_SIZE}`);
-
-    const parallelUploads = [...new Array(concurrency).keys()];
-    core.debug("Awaiting all uploads");
-    let offset = 0;
-
-    try {
-        await Promise.all(
-            parallelUploads.map(async () => {
-                while (offset < fileSize) {
-                    const chunkSize = Math.min(
-                        fileSize - offset,
-                        MAX_CHUNK_SIZE
-                    );
-                    const start = offset;
-                    const end = offset + chunkSize - 1;
-                    offset += MAX_CHUNK_SIZE;
-
-                    await uploadChunk(
-                        httpClient,
-                        resourceUrl,
-                        () =>
-                            fs
-                                .createReadStream(archivePath, {
-                                    fd,
-                                    start,
-                                    end,
-                                    autoClose: false
-                                })
-                                .on("error", error => {
-                                    throw new Error(
-                                        `Cache upload failed because file read failed with ${error.Message}`
-                                    );
-                                }),
-                        start,
-                        end
-                    );
-                }
-            })
-        );
-    } finally {
-        fs.closeSync(fd);
-    }
-    return;
-}
-
-async function commitCache(
-    httpClient: HttpClient,
-    cacheId: number,
-    filesize: number
-): Promise<ITypedResponse<null>> {
-    const commitCacheRequest: CommitCacheRequest = { size: filesize };
-    return await retryTypedResponse("commitCache", () =>
-        httpClient.postJson<null>(
-            getCacheApiUrl(`caches/${cacheId.toString()}`),
-            commitCacheRequest
-        )
-    );
-}
-
-export async function saveCache(
-    cacheId: number,
-    archivePath: string
-): Promise<void> {
-    const httpClient = createHttpClient();
-
-    core.debug("Upload cache");
-    await uploadFile(httpClient, cacheId, archivePath);
-
-    // Commit Cache
-    core.debug("Commiting cache");
-    const cacheSize = utils.getArchiveFileSize(archivePath);
-    const commitCacheResponse = await commitCache(
-        httpClient,
-        cacheId,
-        cacheSize
-    );
-    if (!isSuccessStatusCode(commitCacheResponse.statusCode)) {
-        throw new Error(
-            `Cache service responded with ${commitCacheResponse.statusCode} during commit cache.`
-        );
-    }
-
-    core.info("Cache saved successfully");
-}

src/constants.ts

@@ -19,19 +19,4 @@ export enum Events {
     PullRequest = "pull_request"
 }
 
-export enum CacheFilename {
-    Gzip = "cache.tgz",
-    Zstd = "cache.tzst"
-}
-
-export enum CompressionMethod {
-    Gzip = "gzip",
-    Zstd = "zstd"
-}
-
-// Socket timeout in milliseconds during download.  If no traffic is received
-// over the socket during this period, the socket is destroyed and the download
-// is aborted.
-export const SocketTimeout = 5000;
-
 export const RefKey = "GITHUB_REF";

src/contracts.d.ts

@@ -1,25 +0,0 @@
-import { CompressionMethod } from "./constants";
-
-export interface ArtifactCacheEntry {
-    cacheKey?: string;
-    scope?: string;
-    creationTime?: string;
-    archiveLocation?: string;
-}
-
-export interface CommitCacheRequest {
-    size: number;
-}
-
-export interface ReserveCacheRequest {
-    key: string;
-    version?: string;
-}
-
-export interface ReserveCacheResponse {
-    cacheId: number;
-}
-
-export interface CacheOptions {
-    compressionMethod?: CompressionMethod;
-}

src/restore.ts

@@ -1,9 +1,7 @@
+import * as cache from "@actions/cache";
 import * as core from "@actions/core";
-import * as path from "path";
 
-import * as cacheHttpClient from "./cacheHttpClient";
 import { Events, Inputs, State } from "./constants";
-import { extractTar } from "./tar";
 import * as utils from "./utils/actionUtils";
 
 async function run(): Promise<void> {
@@ -25,90 +23,43 @@ async function run(): Promise<void> {
             .getInput(Inputs.RestoreKeys)
             .split("\n")
             .filter(x => x !== "");
-        const keys = [primaryKey, ...restoreKeys];
 
-        core.debug("Resolved Keys:");
+        const cachePaths = core
-        core.debug(JSON.stringify(keys));
+            .getInput(Inputs.Path, { required: true })
-
+            .split("\n")
-        if (keys.length > 10) {
+            .filter(x => x !== "");
-            core.setFailed(
-                `Key Validation Error: Keys are limited to a maximum of 10.`
-            );
-            return;
-        }
-        for (const key of keys) {
-            if (key.length > 512) {
-                core.setFailed(
-                    `Key Validation Error: ${key} cannot be larger than 512 characters.`
-                );
-                return;
-            }
-            const regex = /^[^,]*$/;
-            if (!regex.test(key)) {
-                core.setFailed(
-                    `Key Validation Error: ${key} cannot contain commas.`
-                );
-                return;
-            }
-        }
-
-        const compressionMethod = await utils.getCompressionMethod();
 
         try {
-            const cacheEntry = await cacheHttpClient.getCacheEntry(keys, {
+            const cacheKey = await cache.restoreCache(
-                compressionMethod: compressionMethod
+                cachePaths,
-            });
+                primaryKey,
-            if (!cacheEntry?.archiveLocation) {
+                restoreKeys
-                core.info(`Cache not found for input keys: ${keys.join(", ")}`);
+            );
+            if (!cacheKey) {
+                core.info(
+                    `Cache not found for input keys: ${[
+                        primaryKey,
+                        ...restoreKeys
+                    ].join(", ")}`
+                );
                 return;
             }
 
-            const archivePath = path.join(
-                await utils.createTempDirectory(),
-                utils.getCacheFileName(compressionMethod)
-            );
-            core.debug(`Archive Path: ${archivePath}`);
-
             // Store the cache result
-            utils.setCacheState(cacheEntry);
+            utils.setCacheState(cacheKey);
 
-            try {
+            const isExactKeyMatch = utils.isExactKeyMatch(primaryKey, cacheKey);
-                // Download the cache from the cache entry
-                await cacheHttpClient.downloadCache(
-                    cacheEntry.archiveLocation,
-                    archivePath
-                );
-
-                const archiveFileSize = utils.getArchiveFileSize(archivePath);
-                core.info(
-                    `Cache Size: ~${Math.round(
-                        archiveFileSize / (1024 * 1024)
-                    )} MB (${archiveFileSize} B)`
-                );
-
-                await extractTar(archivePath, compressionMethod);
-            } finally {
-                // Try to delete the archive to save space
-                try {
-                    await utils.unlinkFile(archivePath);
-                } catch (error) {
-                    core.debug(`Failed to delete archive: ${error}`);
-                }
-            }
-
-            const isExactKeyMatch = utils.isExactKeyMatch(
-                primaryKey,
-                cacheEntry
-            );
             utils.setCacheHitOutput(isExactKeyMatch);
 
-            core.info(
+            core.info(`Cache restored from key: ${cacheKey}`);
-                `Cache restored from key: ${cacheEntry && cacheEntry.cacheKey}`
-            );
         } catch (error) {
+            if (error.name === cache.ValidationError.name) {
+                throw error;
+            } else {
                 utils.logWarning(error.message);
                 utils.setCacheHitOutput(false);
             }
+        }
     } catch (error) {
         core.setFailed(error.message);
     }

src/save.ts

@@ -1,9 +1,7 @@
+import * as cache from "@actions/cache";
 import * as core from "@actions/core";
-import * as path from "path";
 
-import * as cacheHttpClient from "./cacheHttpClient";
 import { Events, Inputs, State } from "./constants";
-import { createTar } from "./tar";
 import * as utils from "./utils/actionUtils";
 
 async function run(): Promise<void> {
@@ -33,53 +31,22 @@ async function run(): Promise<void> {
             return;
         }
 
-        const compressionMethod = await utils.getCompressionMethod();
+        const cachePaths = core
-
-        core.debug("Reserving Cache");
-        const cacheId = await cacheHttpClient.reserveCache(primaryKey, {
-            compressionMethod: compressionMethod
-        });
-        if (cacheId == -1) {
-            core.info(
-                `Unable to reserve cache with key ${primaryKey}, another job may be creating this cache.`
-            );
-            return;
-        }
-        core.debug(`Cache ID: ${cacheId}`);
-        const cachePaths = await utils.resolvePaths(
-            core
             .getInput(Inputs.Path, { required: true })
             .split("\n")
-                .filter(x => x !== "")
+            .filter(x => x !== "");
-        );
 
-        core.debug("Cache Paths:");
+        try {
-        core.debug(`${JSON.stringify(cachePaths)}`);
+            await cache.saveCache(cachePaths, primaryKey);
-
+        } catch (error) {
-        const archiveFolder = await utils.createTempDirectory();
+            if (error.name === cache.ValidationError.name) {
-        const archivePath = path.join(
+                throw error;
-            archiveFolder,
+            } else if (error.name === cache.ReserveCacheError.name) {
-            utils.getCacheFileName(compressionMethod)
+                core.info(error.message);
-        );
+            } else {
-
+                utils.logWarning(error.message);
-        core.debug(`Archive Path: ${archivePath}`);
+            }
-
-        await createTar(archiveFolder, cachePaths, compressionMethod);
-
-        const fileSizeLimit = 5 * 1024 * 1024 * 1024; // 5GB per repo limit
-        const archiveFileSize = utils.getArchiveFileSize(archivePath);
-        core.debug(`File Size: ${archiveFileSize}`);
-        if (archiveFileSize > fileSizeLimit) {
-            utils.logWarning(
-                `Cache size of ~${Math.round(
-                    archiveFileSize / (1024 * 1024)
-                )} MB (${archiveFileSize} B) is over the 5GB limit, not saving cache.`
-            );
-            return;
         }
-
-        core.debug(`Saving Cache (ID: ${cacheId})`);
-        await cacheHttpClient.saveCache(cacheId, archivePath);
     } catch (error) {
         utils.logWarning(error.message);
     }

src/tar.ts

@@ -1,87 +0,0 @@
-import { exec } from "@actions/exec";
-import * as io from "@actions/io";
-import { existsSync, writeFileSync } from "fs";
-import * as path from "path";
-
-import { CompressionMethod } from "./constants";
-import * as utils from "./utils/actionUtils";
-
-async function getTarPath(args: string[]): Promise<string> {
-    // Explicitly use BSD Tar on Windows
-    const IS_WINDOWS = process.platform === "win32";
-    if (IS_WINDOWS) {
-        const systemTar = `${process.env["windir"]}\\System32\\tar.exe`;
-        if (existsSync(systemTar)) {
-            return systemTar;
-        } else if (await utils.useGnuTar()) {
-            args.push("--force-local");
-        }
-    }
-    return await io.which("tar", true);
-}
-
-async function execTar(args: string[], cwd?: string): Promise<void> {
-    try {
-        await exec(`"${await getTarPath(args)}"`, args, { cwd: cwd });
-    } catch (error) {
-        throw new Error(`Tar failed with error: ${error?.message}`);
-    }
-}
-
-function getWorkingDirectory(): string {
-    return process.env["GITHUB_WORKSPACE"] ?? process.cwd();
-}
-
-export async function extractTar(
-    archivePath: string,
-    compressionMethod: CompressionMethod
-): Promise<void> {
-    // Create directory to extract tar into
-    const workingDirectory = getWorkingDirectory();
-    await io.mkdirP(workingDirectory);
-    // --d: Decompress.
-    // --long=#: Enables long distance matching with # bits. Maximum is 30 (1GB) on 32-bit OS and 31 (2GB) on 64-bit.
-    // Using 30 here because we also support 32-bit self-hosted runners.
-    const args = [
-        ...(compressionMethod == CompressionMethod.Zstd
-            ? ["--use-compress-program", "zstd -d --long=30"]
-            : ["-z"]),
-        "-xf",
-        archivePath.replace(new RegExp("\\" + path.sep, "g"), "/"),
-        "-P",
-        "-C",
-        workingDirectory.replace(new RegExp("\\" + path.sep, "g"), "/")
-    ];
-    await execTar(args);
-}
-
-export async function createTar(
-    archiveFolder: string,
-    sourceDirectories: string[],
-    compressionMethod: CompressionMethod
-): Promise<void> {
-    // Write source directories to manifest.txt to avoid command length limits
-    const manifestFilename = "manifest.txt";
-    const cacheFileName = utils.getCacheFileName(compressionMethod);
-    writeFileSync(
-        path.join(archiveFolder, manifestFilename),
-        sourceDirectories.join("\n")
-    );
-    // -T#: Compress using # working thread. If # is 0, attempt to detect and use the number of physical CPU cores.
-    // --long=#: Enables long distance matching with # bits. Maximum is 30 (1GB) on 32-bit OS and 31 (2GB) on 64-bit.
-    // Using 30 here because we also support 32-bit self-hosted runners.
-    const workingDirectory = getWorkingDirectory();
-    const args = [
-        ...(compressionMethod == CompressionMethod.Zstd
-            ? ["--use-compress-program", "zstd -T0 --long=30"]
-            : ["-z"]),
-        "-cf",
-        cacheFileName.replace(new RegExp("\\" + path.sep, "g"), "/"),
-        "-P",
-        "-C",
-        workingDirectory.replace(new RegExp("\\" + path.sep, "g"), "/"),
-        "--files-from",
-        manifestFilename
-    ];
-    await execTar(args, archiveFolder);
-}

src/utils/actionUtils.ts

@@ -1,86 +1,35 @@
 import * as core from "@actions/core";
-import * as exec from "@actions/exec";
-import * as glob from "@actions/glob";
-import * as io from "@actions/io";
-import * as fs from "fs";
-import * as path from "path";
-import * as util from "util";
-import * as uuidV4 from "uuid/v4";
 
-import {
+import { Outputs, RefKey, State } from "../constants";
-    CacheFilename,
-    CompressionMethod,
-    Outputs,
-    RefKey,
-    State
-} from "../constants";
-import { ArtifactCacheEntry } from "../contracts";
 
-// From https://github.com/actions/toolkit/blob/master/packages/tool-cache/src/tool-cache.ts#L23
+export function isExactKeyMatch(key: string, cacheKey?: string): boolean {
-export async function createTempDirectory(): Promise<string> {
-    const IS_WINDOWS = process.platform === "win32";
-
-    let tempDirectory: string = process.env["RUNNER_TEMP"] || "";
-
-    if (!tempDirectory) {
-        let baseLocation: string;
-        if (IS_WINDOWS) {
-            // On Windows use the USERPROFILE env variable
-            baseLocation = process.env["USERPROFILE"] || "C:\\";
-        } else {
-            if (process.platform === "darwin") {
-                baseLocation = "/Users";
-            } else {
-                baseLocation = "/home";
-            }
-        }
-        tempDirectory = path.join(baseLocation, "actions", "temp");
-    }
-
-    const dest = path.join(tempDirectory, uuidV4.default());
-    await io.mkdirP(dest);
-    return dest;
-}
-
-export function getArchiveFileSize(path: string): number {
-    return fs.statSync(path).size;
-}
-
-export function isExactKeyMatch(
-    key: string,
-    cacheResult?: ArtifactCacheEntry
-): boolean {
     return !!(
-        cacheResult &&
+        cacheKey &&
-        cacheResult.cacheKey &&
+        cacheKey.localeCompare(key, undefined, {
-        cacheResult.cacheKey.localeCompare(key, undefined, {
             sensitivity: "accent"
         }) === 0
     );
 }
 
-export function setCacheState(state: ArtifactCacheEntry): void {
+export function setCacheState(state: string): void {
-    core.saveState(State.CacheResult, JSON.stringify(state));
+    core.saveState(State.CacheResult, state);
 }
 
 export function setCacheHitOutput(isCacheHit: boolean): void {
     core.setOutput(Outputs.CacheHit, isCacheHit.toString());
 }
 
-export function setOutputAndState(
+export function setOutputAndState(key: string, cacheKey?: string): void {
-    key: string,
+    setCacheHitOutput(isExactKeyMatch(key, cacheKey));
-    cacheResult?: ArtifactCacheEntry
-): void {
-    setCacheHitOutput(isExactKeyMatch(key, cacheResult));
     // Store the cache result if it exists
-    cacheResult && setCacheState(cacheResult);
+    cacheKey && setCacheState(cacheKey);
 }
 
-export function getCacheState(): ArtifactCacheEntry | undefined {
+export function getCacheState(): string | undefined {
-    const stateData = core.getState(State.CacheResult);
+    const cacheKey = core.getState(State.CacheResult);
-    core.debug(`State: ${stateData}`);
+    if (cacheKey) {
-    if (stateData) {
+        core.debug(`Cache state/key: ${cacheKey}`);
-        return JSON.parse(stateData) as ArtifactCacheEntry;
+        return cacheKey;
     }
 
     return undefined;
@@ -91,70 +40,8 @@ export function logWarning(message: string): void {
     core.info(`${warningPrefix}${message}`);
 }
 
-export async function resolvePaths(patterns: string[]): Promise<string[]> {
-    const paths: string[] = [];
-    const workspace = process.env["GITHUB_WORKSPACE"] ?? process.cwd();
-    const globber = await glob.create(patterns.join("\n"), {
-        implicitDescendants: false
-    });
-
-    for await (const file of globber.globGenerator()) {
-        const relativeFile = path.relative(workspace, file);
-        core.debug(`Matched: ${relativeFile}`);
-        // Paths are made relative so the tar entries are all relative to the root of the workspace.
-        paths.push(`${relativeFile}`);
-    }
-
-    return paths;
-}
-
 // Cache token authorized for all events that are tied to a ref
 // See GitHub Context https://help.github.com/actions/automating-your-workflow-with-github-actions/contexts-and-expression-syntax-for-github-actions#github-context
 export function isValidEvent(): boolean {
     return RefKey in process.env && Boolean(process.env[RefKey]);
 }
-
-export function unlinkFile(path: fs.PathLike): Promise<void> {
-    return util.promisify(fs.unlink)(path);
-}
-
-async function getVersion(app: string): Promise<string> {
-    core.debug(`Checking ${app} --version`);
-    let versionOutput = "";
-    try {
-        await exec.exec(`${app} --version`, [], {
-            ignoreReturnCode: true,
-            silent: true,
-            listeners: {
-                stdout: (data: Buffer): string =>
-                    (versionOutput += data.toString()),
-                stderr: (data: Buffer): string =>
-                    (versionOutput += data.toString())
-            }
-        });
-    } catch (err) {
-        core.debug(err.message);
-    }
-
-    versionOutput = versionOutput.trim();
-    core.debug(versionOutput);
-    return versionOutput;
-}
-
-export async function getCompressionMethod(): Promise<CompressionMethod> {
-    const versionOutput = await getVersion("zstd");
-    return versionOutput.toLowerCase().includes("zstd command line interface")
-        ? CompressionMethod.Zstd
-        : CompressionMethod.Gzip;
-}
-
-export function getCacheFileName(compressionMethod: CompressionMethod): string {
-    return compressionMethod == CompressionMethod.Zstd
-        ? CacheFilename.Zstd
-        : CacheFilename.Gzip;
-}
-
-export async function useGnuTar(): Promise<boolean> {
-    const versionOutput = await getVersion("tar");
-    return versionOutput.toLowerCase().includes("gnu tar");
-}