Add DryRun option to RestoreCache (#27)

* Add dry run flag * Emit debug output * Remove unused logging * Add failing unit test for dryrun option * Unit test new dryrun functionality * Throw error if unable to parse collection uri for instance * Remove unused logging
2019-11-12 11:25:42 -08:00 · 2019-11-12 11:25:42 -08:00 · 7b16b67d0f
--- a/Tasks/Common/packaging-common/ArtifactToolRunner.ts
+++ b/Tasks/Common/packaging-common/ArtifactToolRunner.ts
@ -45,7 +45,6 @@ export function runArtifactTool(artifactToolPath: string, command: string[], exe
        return tl.execSync(artifactToolPath, command, execOptions);
    } else {
        fs.chmodSync(artifactToolPath, "755");
-
        if (!execOptions.silent) {
            execOptions.outStream.write(getCommandString(artifactToolPath, command) + os.EOL);
        }
--- a/Tasks/Common/packaging-common/Tests/FeedUtilityMockHelper.ts
+++ b/Tasks/Common/packaging-common/Tests/FeedUtilityMockHelper.ts
@ -0,0 +1,33 @@
+import tmrm = require("azure-pipelines-task-lib/mock-run");
+import Axios from "axios";
+import MockAdapter from "axios-mock-adapter";
+
+export interface IMockResponse {
+  responseCode: number;
+  data?: any;
+}
+
+export function registerFeedUtilityMock(
+  tmr: tmrm.TaskMockRunner,
+  response: IMockResponse
+) {
+  tmr.setInput("feedlist", "node-package-feed");
+  tmr.setInput("verbosity", "verbose");
+
+  process.env.BUILD_DEFINITIONNAME = "build definition";
+  process.env.AGENT_HOMEDIRECTORY = "/users/home/directory";
+  process.env.BUILD_SOURCESDIRECTORY = "/users/home/sources";
+  process.env.SYSTEM_SERVERTYPE = "hosted";
+  process.env.ENDPOINT_AUTH_SYSTEMVSSCONNECTION =
+    '{"parameters":{"AccessToken":"token"},"scheme":"OAuth"}';
+  process.env.ENDPOINT_URL_SYSTEMVSSCONNECTION =
+    "https://example.visualstudio.com/defaultcollection";
+  process.env.SYSTEM_DEFAULTWORKINGDIRECTORY = "/users/home/directory";
+  process.env.SYSTEM_TEAMFOUNDATIONCOLLECTIONURI =
+    "https://example.visualstudio.com/defaultcollection";
+
+  const mock = new MockAdapter(Axios);
+  console.log("mocking this out");
+
+  mock.onAny().reply(response.responseCode, response.data);
+}
--- a/Tasks/Common/packaging-common/cache/cacheUtilities.ts
+++ b/Tasks/Common/packaging-common/cache/cacheUtilities.ts
@ -8,6 +8,7 @@ import shell = require("shelljs");
 import tl = require("azure-pipelines-task-lib/task");

 import { UniversalPackages } from "./universalPackages";
+import { doesPackageExist } from "./feedUtilities";
 const universalPackages = new UniversalPackages();

 const isWin = process.platform === "win32";
@ -59,10 +60,27 @@ export class cacheUtilities {
      tarballPath = "/" + tarballPath.replace(":", "").replace(/\\/g, "/");
    }

+    const dryRun = tl.getBoolInput("dryRun", false);
+    const alias = tl.getInput("alias", false);
+
+    if (dryRun) {
+      try {
+        const packageExists = await doesPackageExist(hash);
+
+        const output =
+          alias && alias.length > 0 ? `CacheExists-${alias}` : "CacheExists";
+        tl.setVariable(output, packageExists ? "true" : "false");
+        tl.setVariable(hash, packageExists ? "true" : "false");
+      } catch (err) {
+        console.log(err);
+      }
+
+      return;
+    }
+
    try {
      const result = await universalPackages.download(hash, tmp_cache);

-      const alias = tl.getInput("alias", false);
      const output =
        alias && alias.length > 0 ? `CacheRestored-${alias}` : "CacheRestored";

@ -145,7 +163,9 @@ export class cacheUtilities {
    }

    try {
-      const { stderr: error } = shell.exec(
+      const {
+        stderr: error
+      } = shell.exec(
        `tar -C "${tarballParentDir}" -czf "${tarballPath}" ${targetFolders
          .map(t => `\"${t}\"`)
          .join(" ")}`,
--- a/Tasks/Common/packaging-common/cache/feedUtilities.ts
+++ b/Tasks/Common/packaging-common/cache/feedUtilities.ts
@ -0,0 +1,58 @@
+import * as pkgLocationUtils from "../locationUtilities";
+import * as tl from "azure-pipelines-task-lib";
+import Axios, { AxiosRequestConfig } from "axios";
+
+interface IPackage {
+  id: string;
+  name: string;
+  version: string;
+}
+
+export async function doesPackageExist(hash: string): Promise<boolean> {
+  const feedId = tl.getInput("feedList");
+  // Getting package name from hash
+  const packageId = tl
+    .getVariable("Build.DefinitionName")
+    .replace(/\s/g, "")
+    .substring(0, 255)
+    .toLowerCase();
+
+  const version = `1.0.0-${hash}`;
+  const accessToken = pkgLocationUtils.getSystemAccessToken();
+  const collectionUri = process.env.SYSTEM_TEAMFOUNDATIONCOLLECTIONURI;
+
+  let instance: string = "";
+  const legacyRegex = /https:\/\/(\S+).visualstudio.com\S+/g;
+  const newRegex = /https:\/\/dev.azure.com\/(\S+)\//g;
+
+  const legacyUrl = legacyRegex.exec(collectionUri);
+  const newUrl = newRegex.exec(collectionUri);
+
+  if (legacyUrl) {
+    instance = legacyUrl[1];
+  } else if (newUrl) {
+    instance = newUrl[1];
+  } else {
+    throw `Unable to parse collection uri: '${collectionUri}'`;
+  }
+
+  const url = `https://pkgs.dev.azure.com/${instance}/_apis/packaging/feeds/${feedId}/upack/packages/${packageId}/versions/${version}?api-version=5.1-preview.1`;
+
+  const config: AxiosRequestConfig = {
+    headers: {
+      Authorization: `Bearer ${accessToken}`,
+      Accept: "application/json"
+    }
+  };
+  try {
+    const result = await Axios.get<IPackage>(url, config);
+
+    tl.debug(JSON.stringify(result.data));
+
+    return result.data.version === version;
+  } catch (err) {
+    tl.debug(err.toString());
+
+    return false;
+  }
+}
--- a/Tasks/Common/packaging-common/cache/universaldownload.ts
+++ b/Tasks/Common/packaging-common/cache/universaldownload.ts
@ -76,7 +76,7 @@ export async function run(artifactToolPath: string, hash: string, targetFolder:
                success: false,
              };
        }
-
+ 
        return {
            toolRan: true,
            success: false,
--- a/Tasks/Common/packaging-common/package-lock.json
+++ b/Tasks/Common/packaging-common/package-lock.json
@ -40,6 +40,23 @@
      "resolved": "https://registry.npmjs.org/arg/-/arg-4.1.0.tgz",
      "integrity": "sha512-ZWc51jO3qegGkVh8Hwpv636EkbesNV5ZNQPCtRa+0qytRYPEs9IYT9qITY9buezqUH5uqyzlWLcufrzU2rffdg=="
    },
+    "axios": {
+      "version": "0.19.0",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-0.19.0.tgz",
+      "integrity": "sha512-1uvKqKQta3KBxIz14F2v06AEHZ/dIoeKfbTRkK1E5oqjDnuEerLmYTgJB5AiQZHJcljpg1TuRzdjDR06qNk0DQ==",
+      "requires": {
+        "follow-redirects": "1.5.10",
+        "is-buffer": "^2.0.2"
+      }
+    },
+    "axios-mock-adapter": {
+      "version": "1.17.0",
+      "resolved": "https://registry.npmjs.org/axios-mock-adapter/-/axios-mock-adapter-1.17.0.tgz",
+      "integrity": "sha512-q3efmwJUOO4g+wsLNSk9Ps1UlJoF3fQ3FSEe4uEEhkRtu7SoiAVPj8R3Hc/WP55MBTVFzaDP9QkdJhdVhP8A1Q==",
+      "requires": {
+        "deep-equal": "^1.0.1"
+      }
+    },
    "azure-devops-node-api": {
      "version": "6.6.0",
      "resolved": "https://registry.npmjs.org/azure-devops-node-api/-/azure-devops-node-api-6.6.0.tgz",
@ -130,16 +147,58 @@
      "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
      "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s="
    },
+    "debug": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
+      "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
+      "requires": {
+        "ms": "2.0.0"
+      }
+    },
+    "deep-equal": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/deep-equal/-/deep-equal-1.1.0.tgz",
+      "integrity": "sha512-ZbfWJq/wN1Z273o7mUSjILYqehAktR2NVoSrOukDkU9kg2v/Uv89yU4Cvz8seJeAmtN5oqiefKq8FPuXOboqLw==",
+      "requires": {
+        "is-arguments": "^1.0.4",
+        "is-date-object": "^1.0.1",
+        "is-regex": "^1.0.4",
+        "object-is": "^1.0.1",
+        "object-keys": "^1.1.1",
+        "regexp.prototype.flags": "^1.2.0"
+      }
+    },
+    "define-properties": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/define-properties/-/define-properties-1.1.3.tgz",
+      "integrity": "sha512-3MqfYKj2lLzdMSf8ZIZE/V+Zuy+BgD6f164e8K2w7dgnpKArBDerGYpM46IYYcjnkdPNMjPk9A6VFB8+3SKlXQ==",
+      "requires": {
+        "object-keys": "^1.0.12"
+      }
+    },
    "diff": {
      "version": "3.5.0",
      "resolved": "https://registry.npmjs.org/diff/-/diff-3.5.0.tgz",
      "integrity": "sha512-A46qtFgd+g7pDZinpnwiRJtxbC1hpgf0uzP3iG89scHk0AUC7A1TGxf5OiiOUv/JMZR8GOt8hL900hV0bOy5xA=="
    },
+    "follow-redirects": {
+      "version": "1.5.10",
+      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.5.10.tgz",
+      "integrity": "sha512-0V5l4Cizzvqt5D44aTXbFZz+FtyXV1vrDN6qrelxtfYQKW0KO0W2T/hkE8xvGa/540LkZlkaUjO4ailYTFtHVQ==",
+      "requires": {
+        "debug": "=3.1.0"
+      }
+    },
    "fs.realpath": {
      "version": "1.0.0",
      "resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
      "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8="
    },
+    "function-bind": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.1.tgz",
+      "integrity": "sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A=="
+    },
    "glob": {
      "version": "7.1.3",
      "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.3.tgz",
@ -153,6 +212,14 @@
        "path-is-absolute": "^1.0.0"
      }
    },
+    "has": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/has/-/has-1.0.3.tgz",
+      "integrity": "sha512-f2dvO0VU6Oej7RkWJGrehjbzMAjFp5/VKPp5tTpWIV4JHHZK1/BxbFRtf/siA2SWTe09caDmVtYYzWEIbBS4zw==",
+      "requires": {
+        "function-bind": "^1.1.1"
+      }
+    },
    "inflight": {
      "version": "1.0.6",
      "resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
@ -191,6 +258,29 @@
        "sprintf-js": "1.1.0"
      }
    },
+    "is-arguments": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/is-arguments/-/is-arguments-1.0.4.tgz",
+      "integrity": "sha512-xPh0Rmt8NE65sNzvyUmWgI1tz3mKq74lGA0mL8LYZcoIzKOzDh6HmrYm3d18k60nHerC8A9Km8kYu87zfSFnLA=="
+    },
+    "is-buffer": {
+      "version": "2.0.4",
+      "resolved": "https://registry.npmjs.org/is-buffer/-/is-buffer-2.0.4.tgz",
+      "integrity": "sha512-Kq1rokWXOPXWuaMAqZiJW4XxsmD9zGx9q4aePabbn3qCRGedtH7Cm+zV8WETitMfu1wdh+Rvd6w5egwSngUX2A=="
+    },
+    "is-date-object": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/is-date-object/-/is-date-object-1.0.1.tgz",
+      "integrity": "sha1-mqIOtq7rv/d/vTPnTKAbM1gdOhY="
+    },
+    "is-regex": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/is-regex/-/is-regex-1.0.4.tgz",
+      "integrity": "sha1-VRdIm1RwkbCTDglWVM7SXul+lJE=",
+      "requires": {
+        "has": "^1.0.1"
+      }
+    },
    "jsbn": {
      "version": "1.1.0",
      "resolved": "https://registry.npmjs.org/jsbn/-/jsbn-1.1.0.tgz",
@ -247,6 +337,21 @@
      "resolved": "https://registry.npmjs.org/mockery/-/mockery-1.7.0.tgz",
      "integrity": "sha1-9O3g2HUMHJcnwnLqLGBiniyaHE8="
    },
+    "ms": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
+      "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
+    },
+    "object-is": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/object-is/-/object-is-1.0.1.tgz",
+      "integrity": "sha1-CqYOyZiaCz7Xlc9NBvYs8a1lObY="
+    },
+    "object-keys": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/object-keys/-/object-keys-1.1.1.tgz",
+      "integrity": "sha512-NuAESUOUMrlIXOfHKzD6bpPu3tYt3xvjNdRIQ+FeT0lNb4K8WR70CaDxhuNguS2XG+GjkyMwOzsN5ZktImfhLA=="
+    },
    "once": {
      "version": "1.4.0",
      "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
@ -278,6 +383,14 @@
        "resolve": "^1.1.6"
      }
    },
+    "regexp.prototype.flags": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/regexp.prototype.flags/-/regexp.prototype.flags-1.2.0.tgz",
+      "integrity": "sha512-ztaw4M1VqgMwl9HlPpOuiYgItcHlunW0He2fE6eNfT6E/CF2FtYi9ofOYe4mKntstYk0Fyh/rDRBdS3AnxjlrA==",
+      "requires": {
+        "define-properties": "^1.1.2"
+      }
+    },
    "resolve": {
      "version": "1.9.0",
      "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.9.0.tgz",
--- a/Tasks/Common/packaging-common/package.json
+++ b/Tasks/Common/packaging-common/package.json
@ -15,6 +15,8 @@
    "@types/ltx": "^2.8.0",
    "@types/node": "^11.13.0",
    "adm-zip": "^0.4.11",
+    "axios": "^0.19.0",
+    "axios-mock-adapter": "^1.17.0",
    "azure-devops-node-api": "^6.6.0",
    "azure-pipelines-task-lib": "^2.8.0",
    "azure-pipelines-tool-lib": "^0.12.0",
--- a/Tasks/RestoreAndSaveCacheV1/Strings/resources.resjson/en-US/resources.resjson
+++ b/Tasks/RestoreAndSaveCacheV1/Strings/resources.resjson/en-US/resources.resjson
@ -9,6 +9,7 @@
  "loc.input.help.targetfolder": "The folder/file or wildcard of items to cache. For example, node projects can cache packages with '**/node_modules, !**/node_modules/**/node_modules'.",
  "loc.input.label.feedList": "Feed",
  "loc.input.label.platformIndependent": "Platform Independent?",
+  "loc.input.label.dryRun": "Dry run",
  "loc.input.label.alias": "Cache alias",
  "loc.input.label.verbosity": "Verbosity",
  "loc.input.help.verbosity": "Specifies the amount of detail displayed in the output.",
--- a/Tasks/RestoreAndSaveCacheV1/Tests/RestoreCacheDryRunCacheExists.ts
+++ b/Tasks/RestoreAndSaveCacheV1/Tests/RestoreCacheDryRunCacheExists.ts
@ -0,0 +1,71 @@
+import * as fs from "fs";
+import * as path from "path";
+import * as tmrm from "azure-pipelines-task-lib/mock-run";
+import { Constants } from "./Constants";
+import {
+  registerFeedUtilityMock,
+  IMockResponse
+} from "packaging-common/Tests/FeedUtilityMockHelper";
+import { TaskLibAnswers } from "azure-pipelines-task-lib/mock-answer";
+const taskPath = path.join(__dirname, "..", "restorecache.js");
+const tmr: tmrm.TaskMockRunner = new tmrm.TaskMockRunner(taskPath);
+
+const a: TaskLibAnswers = {
+  findMatch: {
+    "**/*/yarn.lock": ["src/webapi/yarn.lock", "src/application/yarn.lock"],
+    "**/*/node_modules": []
+  },
+  rmRF: {
+    "/users/home/directory/tmp_cache": { success: true }
+  },
+  checkPath: {},
+  exec: {},
+  exist: {},
+  which: {}
+};
+
+tmr.setAnswers(a);
+
+tmr.setInput("keyFile", "**/*/yarn.lock");
+tmr.setInput("targetFolders", "**/*/node_modules");
+tmr.setInput("dryRun", "true");
+
+const response: IMockResponse = {
+  responseCode: 200,
+  data: {
+    id: "1234-5678-90123-45678",
+    name: "builddefinition",
+    version: `1.0.0-${process.platform}-${Constants.Hash}`
+  }
+};
+
+registerFeedUtilityMock(tmr, response);
+
+// mock a specific module function called in task
+tmr.registerMock("fs", {
+  readFileSync(
+    path: string,
+    options:
+      | string
+      | {
+          encoding: string;
+          flag?: string;
+        }
+  ): string {
+    if (path.endsWith("/yarn.lock")) {
+      const segments = path.split("/");
+      return segments.splice(segments.length - 3).join("/");
+    }
+    return fs.readFileSync(path, options);
+  },
+  chmodSync: fs.chmodSync,
+  writeFileSync: fs.writeFileSync,
+  readdirSync: fs.readdirSync,
+  mkdirSync: fs.mkdirSync,
+  copyFileSync: fs.copyFileSync,
+  statSync: fs.statSync,
+  linkSync: fs.linkSync,
+  symlinkSync: fs.symlinkSync
+});
+
+tmr.run();
--- a/Tasks/RestoreAndSaveCacheV1/Tests/RestoreCacheDryRunCacheNotExists.ts
+++ b/Tasks/RestoreAndSaveCacheV1/Tests/RestoreCacheDryRunCacheNotExists.ts
@ -0,0 +1,65 @@
+import * as fs from "fs";
+import * as path from "path";
+import * as tmrm from "azure-pipelines-task-lib/mock-run";
+import {
+  registerFeedUtilityMock,
+  IMockResponse
+} from "packaging-common/Tests/FeedUtilityMockHelper";
+import { TaskLibAnswers } from "azure-pipelines-task-lib/mock-answer";
+const taskPath = path.join(__dirname, "..", "restorecache.js");
+const tmr: tmrm.TaskMockRunner = new tmrm.TaskMockRunner(taskPath);
+
+const a: TaskLibAnswers = {
+  findMatch: {
+    "**/*/yarn.lock": ["src/webapi/yarn.lock", "src/application/yarn.lock"],
+    "**/*/node_modules": []
+  },
+  rmRF: {
+    "/users/home/directory/tmp_cache": { success: true }
+  },
+  checkPath: {},
+  exec: {},
+  exist: {},
+  which: {}
+};
+
+tmr.setAnswers(a);
+
+tmr.setInput("keyFile", "**/*/yarn.lock");
+tmr.setInput("targetFolders", "**/*/node_modules");
+tmr.setInput("dryRun", "true");
+
+const response: IMockResponse = {
+  responseCode: 404
+};
+
+registerFeedUtilityMock(tmr, response);
+
+// mock a specific module function called in task
+tmr.registerMock("fs", {
+  readFileSync(
+    path: string,
+    options:
+      | string
+      | {
+          encoding: string;
+          flag?: string;
+        }
+  ): string {
+    if (path.endsWith("/yarn.lock")) {
+      const segments = path.split("/");
+      return segments.splice(segments.length - 3).join("/");
+    }
+    return fs.readFileSync(path, options);
+  },
+  chmodSync: fs.chmodSync,
+  writeFileSync: fs.writeFileSync,
+  readdirSync: fs.readdirSync,
+  mkdirSync: fs.mkdirSync,
+  copyFileSync: fs.copyFileSync,
+  statSync: fs.statSync,
+  linkSync: fs.linkSync,
+  symlinkSync: fs.symlinkSync
+});
+
+tmr.run();
--- a/Tasks/RestoreAndSaveCacheV1/Tests/_suite.ts
+++ b/Tasks/RestoreAndSaveCacheV1/Tests/_suite.ts
@ -1,7 +1,6 @@
 import * as path from "path";
 import * as assert from "assert";
 import * as ttm from "azure-pipelines-task-lib/mock-test";
-import { platform } from "os";
 import { Constants } from "./Constants";

 before(function() {
@ -70,11 +69,7 @@ describe("RestoreCache tests", function() {
    assert(tr.invokedToolCount === 1, "should have run ArtifactTool once");
    assert(
      tr.ran(
-        `/users/tmp/ArtifactTool.exe universal download --feed node-package-feed --service https://example.visualstudio.com/defaultcollection --package-name builddefinition1 --package-version 1.0.0-${
-          process.platform
-        }-${
-          Constants.Hash
-        } --path /users/home/directory/tmp_cache --patvar UNIVERSAL_DOWNLOAD_PAT --verbosity verbose`
+        `/users/tmp/ArtifactTool.exe universal download --feed node-package-feed --service https://example.visualstudio.com/defaultcollection --package-name builddefinition1 --package-version 1.0.0-${process.platform}-${Constants.Hash} --path /users/home/directory/tmp_cache --patvar UNIVERSAL_DOWNLOAD_PAT --verbosity verbose`
      ),
      "it should have run ArtifactTool"
    );
@ -105,9 +100,7 @@ describe("RestoreCache tests", function() {
    assert(tr.invokedToolCount === 1, "should have run ArtifactTool once");
    assert(
      tr.ran(
-        `/users/tmp/ArtifactTool.exe universal download --feed node-package-feed --service https://example.visualstudio.com/defaultcollection --package-name builddefinition1 --package-version 1.0.0-${
-          Constants.Hash
-        } --path /users/home/directory/tmp_cache --patvar UNIVERSAL_DOWNLOAD_PAT --verbosity verbose`
+        `/users/tmp/ArtifactTool.exe universal download --feed node-package-feed --service https://example.visualstudio.com/defaultcollection --package-name builddefinition1 --package-version 1.0.0-${Constants.Hash} --path /users/home/directory/tmp_cache --patvar UNIVERSAL_DOWNLOAD_PAT --verbosity verbose`
      ),
      "it should have run ArtifactTool for plat-independent hash"
    );
@ -138,11 +131,7 @@ describe("RestoreCache tests", function() {
    assert(tr.invokedToolCount === 1, "should have run ArtifactTool once");
    assert(
      tr.ran(
-        `/users/tmp/ArtifactTool.exe universal download --feed node-package-feed --service https://example.visualstudio.com/defaultcollection --package-name builddefinition1 --package-version 1.0.0-${
-          process.platform
-        }-${
-          Constants.Hash
-        } --path /users/home/directory/tmp_cache --patvar UNIVERSAL_DOWNLOAD_PAT --verbosity verbose`
+        `/users/tmp/ArtifactTool.exe universal download --feed node-package-feed --service https://example.visualstudio.com/defaultcollection --package-name builddefinition1 --package-version 1.0.0-${process.platform}-${Constants.Hash} --path /users/home/directory/tmp_cache --patvar UNIVERSAL_DOWNLOAD_PAT --verbosity verbose`
      ),
      "it should have run ArtifactTool"
    );
@ -173,11 +162,7 @@ describe("RestoreCache tests", function() {
    assert(tr.invokedToolCount === 1, "should have run ArtifactTool once");
    assert(
      tr.ran(
-        `/users/tmp/ArtifactTool.exe universal download --feed node-package-feed --service https://example.visualstudio.com/defaultcollection --package-name builddefinition1 --package-version 1.0.0-${
-          process.platform
-        }-${
-          Constants.Hash
-        } --path /users/home/directory/tmp_cache --patvar UNIVERSAL_DOWNLOAD_PAT --verbosity verbose`
+        `/users/tmp/ArtifactTool.exe universal download --feed node-package-feed --service https://example.visualstudio.com/defaultcollection --package-name builddefinition1 --package-version 1.0.0-${process.platform}-${Constants.Hash} --path /users/home/directory/tmp_cache --patvar UNIVERSAL_DOWNLOAD_PAT --verbosity verbose`
      ),
      "it should have run ArtifactTool"
    );
@ -212,11 +197,7 @@ describe("RestoreCache tests", function() {
    assert(tr.invokedToolCount === 1, "should have run ArtifactTool once");
    assert(
      tr.ran(
-        `/users/tmp/ArtifactTool.exe universal download --feed node-package-feed --service https://example.visualstudio.com/defaultcollection --package-name builddefinition1 --package-version 1.0.0-${
-          process.platform
-        }-${
-          Constants.Hash
-        } --path /users/home/directory/tmp_cache --patvar UNIVERSAL_DOWNLOAD_PAT --verbosity verbose`
+        `/users/tmp/ArtifactTool.exe universal download --feed node-package-feed --service https://example.visualstudio.com/defaultcollection --package-name builddefinition1 --package-version 1.0.0-${process.platform}-${Constants.Hash} --path /users/home/directory/tmp_cache --patvar UNIVERSAL_DOWNLOAD_PAT --verbosity verbose`
      ),
      "it should have run ArtifactTool"
    );
@ -282,11 +263,7 @@ describe("RestoreCache tests", function() {
    assert(tr.invokedToolCount === 1, "should have run ArtifactTool once");
    assert(
      tr.ran(
-        `/users/tmp/ArtifactTool.exe universal download --feed node-package-feed --service https://example.visualstudio.com/defaultcollection --package-name builddefinition1 --package-version 1.0.0-${
-          process.platform
-        }-${
-          Constants.Hash
-        } --path /users/home/directory/tmp_cache --patvar UNIVERSAL_DOWNLOAD_PAT --verbosity verbose`
+        `/users/tmp/ArtifactTool.exe universal download --feed node-package-feed --service https://example.visualstudio.com/defaultcollection --package-name builddefinition1 --package-version 1.0.0-${process.platform}-${Constants.Hash} --path /users/home/directory/tmp_cache --patvar UNIVERSAL_DOWNLOAD_PAT --verbosity verbose`
      ),
      "it should have run ArtifactTool"
    );
@ -582,3 +559,49 @@ describe("SaveCache tests", function() {
    done();
  });
 });
+
+describe("DryRun tests", function() {
+  before(function() {
+    process.env["SYSTEM_PULLREQUEST_ISFORK"] = "false";
+  });
+
+  after(() => {});
+
+  it("RestoreCache sets correct output if cache exists", (done: MochaDone) => {
+    const tp = path.join(__dirname, "RestoreCacheDryRunCacheExists.js");
+    const tr: ttm.MockTestRunner = new ttm.MockTestRunner(tp);
+
+    tr.run();
+
+    assert(
+      tr.stdOutContained("set CacheExists=true"),
+      "should state that cache exists"
+    );
+
+    assert(
+      tr.stdOutContained(`${process.platform}-${Constants.Hash}=true`),
+      "variable should be set to mark key as valid in build"
+    );
+
+    done();
+  });
+
+  it("RestoreCache sets correct output if cache does not exists", (done: MochaDone) => {
+    const tp = path.join(__dirname, "RestoreCacheDryRunCacheNotExists.js");
+    const tr: ttm.MockTestRunner = new ttm.MockTestRunner(tp);
+
+    tr.run();
+
+    assert(
+      tr.stdOutContained("set CacheExists=false"),
+      "should state that cache exists"
+    );
+
+    assert(
+      tr.stdOutContained(`${process.platform}-${Constants.Hash}=false`),
+      "variable should be set to mark key as valid in build"
+    );
+
+    done();
+  });
+});
--- a/Tasks/RestoreAndSaveCacheV1/package-lock.json
+++ b/Tasks/RestoreAndSaveCacheV1/package-lock.json
@ -113,6 +113,30 @@
      "resolved": "https://registry.npmjs.org/atob/-/atob-2.1.2.tgz",
      "integrity": "sha512-Wm6ukoaOGJi/73p/cl2GvLjTI5JM1k/O14isD73YML8StrH/7/lRFgmg8nICZgD3bZZvjwCGxtMOD3wWNAu8cg=="
    },
+    "axios": {
+      "version": "0.19.0",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-0.19.0.tgz",
+      "integrity": "sha512-1uvKqKQta3KBxIz14F2v06AEHZ/dIoeKfbTRkK1E5oqjDnuEerLmYTgJB5AiQZHJcljpg1TuRzdjDR06qNk0DQ==",
+      "requires": {
+        "follow-redirects": "1.5.10",
+        "is-buffer": "^2.0.2"
+      },
+      "dependencies": {
+        "is-buffer": {
+          "version": "2.0.4",
+          "resolved": "https://registry.npmjs.org/is-buffer/-/is-buffer-2.0.4.tgz",
+          "integrity": "sha512-Kq1rokWXOPXWuaMAqZiJW4XxsmD9zGx9q4aePabbn3qCRGedtH7Cm+zV8WETitMfu1wdh+Rvd6w5egwSngUX2A=="
+        }
+      }
+    },
+    "axios-mock-adapter": {
+      "version": "1.17.0",
+      "resolved": "https://registry.npmjs.org/axios-mock-adapter/-/axios-mock-adapter-1.17.0.tgz",
+      "integrity": "sha512-q3efmwJUOO4g+wsLNSk9Ps1UlJoF3fQ3FSEe4uEEhkRtu7SoiAVPj8R3Hc/WP55MBTVFzaDP9QkdJhdVhP8A1Q==",
+      "requires": {
+        "deep-equal": "^1.0.1"
+      }
+    },
    "azure-devops-node-api": {
      "version": "7.0.0",
      "resolved": "https://registry.npmjs.org/azure-devops-node-api/-/azure-devops-node-api-7.0.0.tgz",
@ -425,6 +449,26 @@
      "resolved": "https://registry.npmjs.org/decode-uri-component/-/decode-uri-component-0.2.0.tgz",
      "integrity": "sha1-6zkTMzRYd1y4TNGh+uBiEGu4dUU="
    },
+    "deep-equal": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/deep-equal/-/deep-equal-1.1.0.tgz",
+      "integrity": "sha512-ZbfWJq/wN1Z273o7mUSjILYqehAktR2NVoSrOukDkU9kg2v/Uv89yU4Cvz8seJeAmtN5oqiefKq8FPuXOboqLw==",
+      "requires": {
+        "is-arguments": "^1.0.4",
+        "is-date-object": "^1.0.1",
+        "is-regex": "^1.0.4",
+        "object-is": "^1.0.1",
+        "object-keys": "^1.1.1",
+        "regexp.prototype.flags": "^1.2.0"
+      },
+      "dependencies": {
+        "object-keys": {
+          "version": "1.1.1",
+          "resolved": "https://registry.npmjs.org/object-keys/-/object-keys-1.1.1.tgz",
+          "integrity": "sha512-NuAESUOUMrlIXOfHKzD6bpPu3tYt3xvjNdRIQ+FeT0lNb4K8WR70CaDxhuNguS2XG+GjkyMwOzsN5ZktImfhLA=="
+        }
+      }
+    },
    "define-properties": {
      "version": "1.1.3",
      "resolved": "https://registry.npmjs.org/define-properties/-/define-properties-1.1.3.tgz",
@ -721,6 +765,29 @@
        }
      }
    },
+    "follow-redirects": {
+      "version": "1.5.10",
+      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.5.10.tgz",
+      "integrity": "sha512-0V5l4Cizzvqt5D44aTXbFZz+FtyXV1vrDN6qrelxtfYQKW0KO0W2T/hkE8xvGa/540LkZlkaUjO4ailYTFtHVQ==",
+      "requires": {
+        "debug": "=3.1.0"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
+          "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
+          "requires": {
+            "ms": "2.0.0"
+          }
+        },
+        "ms": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
+          "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
+        }
+      }
+    },
    "for-in": {
      "version": "1.0.2",
      "resolved": "https://registry.npmjs.org/for-in/-/for-in-1.0.2.tgz",
@ -892,13 +959,20 @@
      "integrity": "sha512-wPVv/y/QQ/Uiirj/vh3oP+1Ww+AWehmi1g5fFWGPF6IpCBCDVrhgHRMvrLfdYcwDh3QJbGXDW4JAuzxElLSqKA=="
    },
    "ip-address": {
-      "version": "5.9.2",
-      "resolved": "https://registry.npmjs.org/ip-address/-/ip-address-5.9.2.tgz",
-      "integrity": "sha512-7aeFm/7oqo0mMhubTSjZ2Juw/F+WJ3hyfCScNVRQdz5RSRhw1Rj4ZlBFsmEajeKgQDI8asqVs31h8DpxEv7IfQ==",
+      "version": "5.9.4",
+      "resolved": "https://registry.npmjs.org/ip-address/-/ip-address-5.9.4.tgz",
+      "integrity": "sha512-dHkI3/YNJq4b/qQaz+c8LuarD3pY24JqZWfjB8aZx1gtpc2MDILu9L9jpZe1sHpzo/yWFweQVn+U//FhazUxmw==",
      "requires": {
        "jsbn": "1.1.0",
-        "lodash": "^4.17.11",
+        "lodash": "^4.17.15",
        "sprintf-js": "1.1.2"
+      },
+      "dependencies": {
+        "lodash": {
+          "version": "4.17.15",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
+          "integrity": "sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A=="
+        }
      }
    },
    "is-accessor-descriptor": {
@ -919,6 +993,11 @@
        }
      }
    },
+    "is-arguments": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/is-arguments/-/is-arguments-1.0.4.tgz",
+      "integrity": "sha512-xPh0Rmt8NE65sNzvyUmWgI1tz3mKq74lGA0mL8LYZcoIzKOzDh6HmrYm3d18k60nHerC8A9Km8kYu87zfSFnLA=="
+    },
    "is-buffer": {
      "version": "1.1.6",
      "resolved": "https://registry.npmjs.org/is-buffer/-/is-buffer-1.1.6.tgz",
@ -1109,11 +1188,18 @@
      }
    },
    "ltx": {
-      "version": "2.8.1",
-      "resolved": "https://registry.npmjs.org/ltx/-/ltx-2.8.1.tgz",
-      "integrity": "sha512-l4H1FS9I6IVqwvIpUHsSgyxE6t2jP7qd/2MeVG1UhmVK6vlHsQpfm2KNUcbdImeE0ai04vl1qTCF4CPCJqhknQ==",
+      "version": "2.9.2",
+      "resolved": "https://registry.npmjs.org/ltx/-/ltx-2.9.2.tgz",
+      "integrity": "sha512-llB7HflFhlfsYYT1SAe80elCBO5C20ryLdwPB/A/BZk38hhVeZztDlWQ9uTyvKNPX4aK6sA+JfS1f/mfzp5cxA==",
      "requires": {
-        "inherits": "^2.0.1"
+        "inherits": "^2.0.4"
+      },
+      "dependencies": {
+        "inherits": {
+          "version": "2.0.4",
+          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
+          "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="
+        }
      }
    },
    "make-error": {
@ -1329,6 +1415,11 @@
        }
      }
    },
+    "object-is": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/object-is/-/object-is-1.0.1.tgz",
+      "integrity": "sha1-CqYOyZiaCz7Xlc9NBvYs8a1lObY="
+    },
    "object-keys": {
      "version": "1.1.0",
      "resolved": "https://registry.npmjs.org/object-keys/-/object-keys-1.1.0.tgz",
@ -1435,6 +1526,8 @@
        "@types/ltx": "^2.8.0",
        "@types/node": "^11.13.0",
        "adm-zip": "^0.4.11",
+        "axios": "^0.19.0",
+        "axios-mock-adapter": "^1.17.0",
        "azure-devops-node-api": "^6.6.0",
        "azure-pipelines-task-lib": "^2.8.0",
        "azure-pipelines-tool-lib": "^0.12.0",
@ -1448,9 +1541,9 @@
      },
      "dependencies": {
        "@types/node": {
-          "version": "11.13.17",
-          "resolved": "https://registry.npmjs.org/@types/node/-/node-11.13.17.tgz",
-          "integrity": "sha512-7W3kSMa8diVH6s24a8Qrmvwu+vG3ahOC/flMHFdWSdnPYoQI0yPO84h5zOWYXAha2Npn3Pw3SSuQSwBUfaniyQ=="
+          "version": "11.15.2",
+          "resolved": "https://registry.npmjs.org/@types/node/-/node-11.15.2.tgz",
+          "integrity": "sha512-BqCU9uIFkUH9Sgo2uLYbmIiFB1T+VBiM8AI/El3LIAI5KzwtckeSG+3WOYZr9aMoX4UIvRFBWBeSaOu6hFue2Q=="
        },
        "azure-devops-node-api": {
          "version": "6.6.3",
@ -1542,6 +1635,14 @@
        "safe-regex": "^1.1.0"
      }
    },
+    "regexp.prototype.flags": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/regexp.prototype.flags/-/regexp.prototype.flags-1.2.0.tgz",
+      "integrity": "sha512-ztaw4M1VqgMwl9HlPpOuiYgItcHlunW0He2fE6eNfT6E/CF2FtYi9ofOYe4mKntstYk0Fyh/rDRBdS3AnxjlrA==",
+      "requires": {
+        "define-properties": "^1.1.2"
+      }
+    },
    "repeat-element": {
      "version": "1.1.3",
      "resolved": "https://registry.npmjs.org/repeat-element/-/repeat-element-1.1.3.tgz",
--- a/Tasks/RestoreAndSaveCacheV1/task.json
+++ b/Tasks/RestoreAndSaveCacheV1/task.json
@ -9,7 +9,7 @@
  "version": {
    "Major": 1,
    "Minor": 0,
-    "Patch": 15
+    "Patch": 18
  },
  "instanceNameFormat": "Restore and save artifact based on: $(keyfile)",
  "inputs": [
@ -45,6 +45,14 @@
      "defaultValue": false,
      "required": "false"
    },
+    {
+      "name": "dryRun",
+      "type": "boolean",
+      "label": "Dry run",
+      "description": "Check if the cache exists, without downloading it (default is false).",
+      "defaultValue": false,
+      "required": "false"
+    },
    {
      "name": "alias",
      "type": "string",
--- a/Tasks/RestoreAndSaveCacheV1/task.loc.json
+++ b/Tasks/RestoreAndSaveCacheV1/task.loc.json
@ -9,7 +9,7 @@
  "version": {
    "Major": 1,
    "Minor": 0,
-    "Patch": 15
+    "Patch": 18
  },
  "instanceNameFormat": "ms-resource:loc.instanceNameFormat",
  "inputs": [
@ -47,6 +47,14 @@
      "defaultValue": false,
      "required": "false"
    },
+    {
+      "name": "dryRun",
+      "type": "boolean",
+      "label": "ms-resource:loc.input.label.dryRun",
+      "description": "Check if the cache exists, without downloading it (default is false).",
+      "defaultValue": false,
+      "required": "false"
+    },
    {
      "name": "alias",
      "type": "string",
--- a/Tasks/RestoreCacheV1/Strings/resources.resjson/en-US/resources.resjson
+++ b/Tasks/RestoreCacheV1/Strings/resources.resjson/en-US/resources.resjson
@ -9,6 +9,7 @@
  "loc.input.help.targetfolder": "The folder/file or wildcard of items to cache. For example, node projects can cache packages with '**/node_modules, !**/node_modules/**/node_modules'.",
  "loc.input.label.feedList": "Feed",
  "loc.input.label.platformIndependent": "Platform Independent?",
+  "loc.input.label.dryRun": "Dry run",
  "loc.input.label.alias": "Cache alias",
  "loc.input.label.verbosity": "Verbosity",
  "loc.input.help.verbosity": "Specifies the amount of detail displayed in the output.",
--- a/Tasks/RestoreCacheV1/package-lock.json
+++ b/Tasks/RestoreCacheV1/package-lock.json
@ -46,9 +46,26 @@
      "integrity": "sha512-fERNJX8sOXfel6qCBCMPvZLzENBEhZTzKqg6vrOW5pvoEaQuJhRU4ndTAh6lHOxn1I6jnz2NHra56ZODM751uw=="
    },
    "arg": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/arg/-/arg-4.1.0.tgz",
-      "integrity": "sha512-ZWc51jO3qegGkVh8Hwpv636EkbesNV5ZNQPCtRa+0qytRYPEs9IYT9qITY9buezqUH5uqyzlWLcufrzU2rffdg=="
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/arg/-/arg-4.1.1.tgz",
+      "integrity": "sha512-SlmP3fEA88MBv0PypnXZ8ZfJhwmDeIE3SP71j37AiXQBXYosPV0x6uISAaHYSlSVhmHOVkomen0tbGk6Anlebw=="
+    },
+    "axios": {
+      "version": "0.19.0",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-0.19.0.tgz",
+      "integrity": "sha512-1uvKqKQta3KBxIz14F2v06AEHZ/dIoeKfbTRkK1E5oqjDnuEerLmYTgJB5AiQZHJcljpg1TuRzdjDR06qNk0DQ==",
+      "requires": {
+        "follow-redirects": "1.5.10",
+        "is-buffer": "^2.0.2"
+      }
+    },
+    "axios-mock-adapter": {
+      "version": "1.17.0",
+      "resolved": "https://registry.npmjs.org/axios-mock-adapter/-/axios-mock-adapter-1.17.0.tgz",
+      "integrity": "sha512-q3efmwJUOO4g+wsLNSk9Ps1UlJoF3fQ3FSEe4uEEhkRtu7SoiAVPj8R3Hc/WP55MBTVFzaDP9QkdJhdVhP8A1Q==",
+      "requires": {
+        "deep-equal": "^1.0.1"
+      }
    },
    "azure-devops-node-api": {
      "version": "7.0.0",
@ -141,16 +158,58 @@
      "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
      "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s="
    },
+    "debug": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
+      "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
+      "requires": {
+        "ms": "2.0.0"
+      }
+    },
+    "deep-equal": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/deep-equal/-/deep-equal-1.1.0.tgz",
+      "integrity": "sha512-ZbfWJq/wN1Z273o7mUSjILYqehAktR2NVoSrOukDkU9kg2v/Uv89yU4Cvz8seJeAmtN5oqiefKq8FPuXOboqLw==",
+      "requires": {
+        "is-arguments": "^1.0.4",
+        "is-date-object": "^1.0.1",
+        "is-regex": "^1.0.4",
+        "object-is": "^1.0.1",
+        "object-keys": "^1.1.1",
+        "regexp.prototype.flags": "^1.2.0"
+      }
+    },
+    "define-properties": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/define-properties/-/define-properties-1.1.3.tgz",
+      "integrity": "sha512-3MqfYKj2lLzdMSf8ZIZE/V+Zuy+BgD6f164e8K2w7dgnpKArBDerGYpM46IYYcjnkdPNMjPk9A6VFB8+3SKlXQ==",
+      "requires": {
+        "object-keys": "^1.0.12"
+      }
+    },
    "diff": {
      "version": "4.0.1",
      "resolved": "https://registry.npmjs.org/diff/-/diff-4.0.1.tgz",
      "integrity": "sha512-s2+XdvhPCOF01LRQBC8hf4vhbVmI2CGS5aZnxLJlT5FtdhPCDFq80q++zK2KlrVorVDdL5BOGZ/VfLrVtYNF+Q=="
    },
+    "follow-redirects": {
+      "version": "1.5.10",
+      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.5.10.tgz",
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      "resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
      "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8="
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+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.1.tgz",
+      "integrity": "sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A=="
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      "version": "7.1.3",
      "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.3.tgz",
@ -164,6 +223,14 @@
        "path-is-absolute": "^1.0.0"
      }
    },
+    "has": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/has/-/has-1.0.3.tgz",
+      "integrity": "sha512-f2dvO0VU6Oej7RkWJGrehjbzMAjFp5/VKPp5tTpWIV4JHHZK1/BxbFRtf/siA2SWTe09caDmVtYYzWEIbBS4zw==",
+      "requires": {
+        "function-bind": "^1.1.1"
+      }
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    "inflight": {
      "version": "1.0.6",
      "resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
@ -189,31 +256,61 @@
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-      "resolved": "https://registry.npmjs.org/ip-address/-/ip-address-5.9.2.tgz",
-      "integrity": "sha512-7aeFm/7oqo0mMhubTSjZ2Juw/F+WJ3hyfCScNVRQdz5RSRhw1Rj4ZlBFsmEajeKgQDI8asqVs31h8DpxEv7IfQ==",
+      "version": "5.9.4",
+      "resolved": "https://registry.npmjs.org/ip-address/-/ip-address-5.9.4.tgz",
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      "requires": {
        "jsbn": "1.1.0",
-        "lodash": "^4.17.11",
+        "lodash": "^4.17.15",
        "sprintf-js": "1.1.2"
      }
    },
+    "is-arguments": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/is-arguments/-/is-arguments-1.0.4.tgz",
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+      "resolved": "https://registry.npmjs.org/is-buffer/-/is-buffer-2.0.4.tgz",
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+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/is-date-object/-/is-date-object-1.0.1.tgz",
+      "integrity": "sha1-mqIOtq7rv/d/vTPnTKAbM1gdOhY="
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+    "is-regex": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/is-regex/-/is-regex-1.0.4.tgz",
+      "integrity": "sha1-VRdIm1RwkbCTDglWVM7SXul+lJE=",
+      "requires": {
+        "has": "^1.0.1"
+      }
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    "jsbn": {
      "version": "1.1.0",
      "resolved": "https://registry.npmjs.org/jsbn/-/jsbn-1.1.0.tgz",
      "integrity": "sha1-sBMHyym2GKHtJux56RH4A8TaAEA="
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-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.14.tgz",
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+      "version": "4.17.15",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
+      "integrity": "sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A=="
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    "ltx": {
-      "version": "2.8.1",
-      "resolved": "https://registry.npmjs.org/ltx/-/ltx-2.8.1.tgz",
-      "integrity": "sha512-l4H1FS9I6IVqwvIpUHsSgyxE6t2jP7qd/2MeVG1UhmVK6vlHsQpfm2KNUcbdImeE0ai04vl1qTCF4CPCJqhknQ==",
+      "version": "2.9.2",
+      "resolved": "https://registry.npmjs.org/ltx/-/ltx-2.9.2.tgz",
+      "integrity": "sha512-llB7HflFhlfsYYT1SAe80elCBO5C20ryLdwPB/A/BZk38hhVeZztDlWQ9uTyvKNPX4aK6sA+JfS1f/mfzp5cxA==",
      "requires": {
-        "inherits": "^2.0.1"
+        "inherits": "^2.0.4"
+      },
+      "dependencies": {
+        "inherits": {
+          "version": "2.0.4",
+          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
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+        }
      }
    },
    "make-error": {
@ -234,6 +331,21 @@
      "resolved": "https://registry.npmjs.org/mockery/-/mockery-1.7.0.tgz",
      "integrity": "sha1-9O3g2HUMHJcnwnLqLGBiniyaHE8="
    },
+    "ms": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
+      "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
+    },
+    "object-is": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/object-is/-/object-is-1.0.1.tgz",
+      "integrity": "sha1-CqYOyZiaCz7Xlc9NBvYs8a1lObY="
+    },
+    "object-keys": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/object-keys/-/object-keys-1.1.1.tgz",
+      "integrity": "sha512-NuAESUOUMrlIXOfHKzD6bpPu3tYt3xvjNdRIQ+FeT0lNb4K8WR70CaDxhuNguS2XG+GjkyMwOzsN5ZktImfhLA=="
+    },
    "once": {
      "version": "1.4.0",
      "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
@ -253,6 +365,8 @@
        "@types/ltx": "^2.8.0",
        "@types/node": "^11.13.0",
        "adm-zip": "^0.4.11",
+        "axios": "^0.19.0",
+        "axios-mock-adapter": "^1.17.0",
        "azure-devops-node-api": "^6.6.0",
        "azure-pipelines-task-lib": "^2.8.0",
        "azure-pipelines-tool-lib": "^0.12.0",
@ -266,9 +380,9 @@
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        "@types/node": {
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-          "resolved": "https://registry.npmjs.org/@types/node/-/node-11.13.17.tgz",
-          "integrity": "sha512-7W3kSMa8diVH6s24a8Qrmvwu+vG3ahOC/flMHFdWSdnPYoQI0yPO84h5zOWYXAha2Npn3Pw3SSuQSwBUfaniyQ=="
+          "version": "11.15.2",
+          "resolved": "https://registry.npmjs.org/@types/node/-/node-11.15.2.tgz",
+          "integrity": "sha512-BqCU9uIFkUH9Sgo2uLYbmIiFB1T+VBiM8AI/El3LIAI5KzwtckeSG+3WOYZr9aMoX4UIvRFBWBeSaOu6hFue2Q=="
        },
        "azure-devops-node-api": {
          "version": "6.6.3",
@ -317,6 +431,14 @@
        "resolve": "^1.1.6"
      }
    },
+    "regexp.prototype.flags": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/regexp.prototype.flags/-/regexp.prototype.flags-1.2.0.tgz",
+      "integrity": "sha512-ztaw4M1VqgMwl9HlPpOuiYgItcHlunW0He2fE6eNfT6E/CF2FtYi9ofOYe4mKntstYk0Fyh/rDRBdS3AnxjlrA==",
+      "requires": {
+        "define-properties": "^1.1.2"
+      }
+    },
    "resolve": {
      "version": "1.9.0",
      "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.9.0.tgz",
@ -351,9 +473,9 @@
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    },
    "source-map-support": {
-      "version": "0.5.12",
-      "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.5.12.tgz",
-      "integrity": "sha512-4h2Pbvyy15EE02G+JOZpUCmqWJuqrs+sEkzewTm++BPi7Hvn/HwcqLAcNxYAyI0x13CpPPn+kMjl+hplXMHITQ==",
+      "version": "0.5.16",
+      "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.5.16.tgz",
+      "integrity": "sha512-efyLRJDr68D9hBBNIPWFjhpFzURh+KJykQwvMyW5UiZzYwoF6l4YMMDIJJEyFWxWCqfyxLzz6tSfUFR+kXXsVQ==",
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        "source-map": "^0.6.0"
@ -365,9 +487,9 @@
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    },
    "ts-node": {
-      "version": "8.3.0",
-      "resolved": "https://registry.npmjs.org/ts-node/-/ts-node-8.3.0.tgz",
-      "integrity": "sha512-dyNS/RqyVTDcmNM4NIBAeDMpsAdaQ+ojdf0GOLqE6nwJOgzEkdRNzJywhDfwnuvB10oa6NLVG1rUJQCpRN7qoQ==",
+      "version": "8.5.0",
+      "resolved": "https://registry.npmjs.org/ts-node/-/ts-node-8.5.0.tgz",
+      "integrity": "sha512-fbG32iZEupNV2E2Fd2m2yt1TdAwR3GTCrJQBHDevIiEBNy1A8kqnyl1fv7jmRmmbtcapFab2glZXHJvfD1ed0Q==",
      "requires": {
        "arg": "^4.1.0",
        "diff": "^4.0.1",
@ -406,9 +528,9 @@
      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
    },
    "yn": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/yn/-/yn-3.1.0.tgz",
-      "integrity": "sha512-kKfnnYkbTfrAdd0xICNFw7Atm8nKpLcLv9AZGEt+kczL/WQVai4e2V6ZN8U/O+iI6WrNuJjNNOyu4zfhl9D3Hg=="
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/yn/-/yn-3.1.1.tgz",
+      "integrity": "sha512-Ux4ygGWsu2c7isFWe8Yu1YluJmqVhxqK2cLXNQA5AcC3QfbGNpM7fu0Y8b/z16pXLnFxZYvWhd3fhBY9DLmC6Q=="
    }
  }
 }
--- a/Tasks/RestoreCacheV1/task.json
+++ b/Tasks/RestoreCacheV1/task.json
@ -9,7 +9,7 @@
  "version": {
    "Major": 1,
    "Minor": 0,
-    "Patch": 15
+    "Patch": 18
  },
  "instanceNameFormat": "Restore artifact based on: $(keyfile)",
  "inputs": [
@ -45,6 +45,14 @@
      "defaultValue": false,
      "required": "false"
    },
+    {
+      "name": "dryRun",
+      "type": "boolean",
+      "label": "Dry run",
+      "description": "Check if the cache exists, without downloading it (default is false).",
+      "defaultValue": false,
+      "required": "false"
+    },
    {
      "name": "alias",
      "type": "string",
--- a/Tasks/RestoreCacheV1/task.loc.json
+++ b/Tasks/RestoreCacheV1/task.loc.json
@ -9,7 +9,7 @@
  "version": {
    "Major": 1,
    "Minor": 0,
-    "Patch": 15
+    "Patch": 18
  },
  "instanceNameFormat": "ms-resource:loc.instanceNameFormat",
  "inputs": [
@ -47,6 +47,14 @@
      "defaultValue": false,
      "required": "false"
    },
+    {
+      "name": "dryRun",
+      "type": "boolean",
+      "label": "ms-resource:loc.input.label.dryRun",
+      "description": "Check if the cache exists, without downloading it (default is false).",
+      "defaultValue": false,
+      "required": "false"
+    },
    {
      "name": "alias",
      "type": "string",
--- a/Tasks/SaveCacheV1/package-lock.json
+++ b/Tasks/SaveCacheV1/package-lock.json
@ -46,9 +46,26 @@
      "integrity": "sha512-fERNJX8sOXfel6qCBCMPvZLzENBEhZTzKqg6vrOW5pvoEaQuJhRU4ndTAh6lHOxn1I6jnz2NHra56ZODM751uw=="
    },
    "arg": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/arg/-/arg-4.1.0.tgz",
-      "integrity": "sha512-ZWc51jO3qegGkVh8Hwpv636EkbesNV5ZNQPCtRa+0qytRYPEs9IYT9qITY9buezqUH5uqyzlWLcufrzU2rffdg=="
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/arg/-/arg-4.1.1.tgz",
+      "integrity": "sha512-SlmP3fEA88MBv0PypnXZ8ZfJhwmDeIE3SP71j37AiXQBXYosPV0x6uISAaHYSlSVhmHOVkomen0tbGk6Anlebw=="
+    },
+    "axios": {
+      "version": "0.19.0",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-0.19.0.tgz",
+      "integrity": "sha512-1uvKqKQta3KBxIz14F2v06AEHZ/dIoeKfbTRkK1E5oqjDnuEerLmYTgJB5AiQZHJcljpg1TuRzdjDR06qNk0DQ==",
+      "requires": {
+        "follow-redirects": "1.5.10",
+        "is-buffer": "^2.0.2"
+      }
+    },
+    "axios-mock-adapter": {
+      "version": "1.17.0",
+      "resolved": "https://registry.npmjs.org/axios-mock-adapter/-/axios-mock-adapter-1.17.0.tgz",
+      "integrity": "sha512-q3efmwJUOO4g+wsLNSk9Ps1UlJoF3fQ3FSEe4uEEhkRtu7SoiAVPj8R3Hc/WP55MBTVFzaDP9QkdJhdVhP8A1Q==",
+      "requires": {
+        "deep-equal": "^1.0.1"
+      }
    },
    "azure-devops-node-api": {
      "version": "7.0.0",
@ -141,16 +158,58 @@
      "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
      "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s="
    },
+    "debug": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
+      "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
+      "requires": {
+        "ms": "2.0.0"
+      }
+    },
+    "deep-equal": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/deep-equal/-/deep-equal-1.1.0.tgz",
+      "integrity": "sha512-ZbfWJq/wN1Z273o7mUSjILYqehAktR2NVoSrOukDkU9kg2v/Uv89yU4Cvz8seJeAmtN5oqiefKq8FPuXOboqLw==",
+      "requires": {
+        "is-arguments": "^1.0.4",
+        "is-date-object": "^1.0.1",
+        "is-regex": "^1.0.4",
+        "object-is": "^1.0.1",
+        "object-keys": "^1.1.1",
+        "regexp.prototype.flags": "^1.2.0"
+      }
+    },
+    "define-properties": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/define-properties/-/define-properties-1.1.3.tgz",
+      "integrity": "sha512-3MqfYKj2lLzdMSf8ZIZE/V+Zuy+BgD6f164e8K2w7dgnpKArBDerGYpM46IYYcjnkdPNMjPk9A6VFB8+3SKlXQ==",
+      "requires": {
+        "object-keys": "^1.0.12"
+      }
+    },
    "diff": {
      "version": "4.0.1",
      "resolved": "https://registry.npmjs.org/diff/-/diff-4.0.1.tgz",
      "integrity": "sha512-s2+XdvhPCOF01LRQBC8hf4vhbVmI2CGS5aZnxLJlT5FtdhPCDFq80q++zK2KlrVorVDdL5BOGZ/VfLrVtYNF+Q=="
    },
+    "follow-redirects": {
+      "version": "1.5.10",
+      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.5.10.tgz",
+      "integrity": "sha512-0V5l4Cizzvqt5D44aTXbFZz+FtyXV1vrDN6qrelxtfYQKW0KO0W2T/hkE8xvGa/540LkZlkaUjO4ailYTFtHVQ==",
+      "requires": {
+        "debug": "=3.1.0"
+      }
+    },
    "fs.realpath": {
      "version": "1.0.0",
      "resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
      "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8="
    },
+    "function-bind": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.1.tgz",
+      "integrity": "sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A=="
+    },
    "glob": {
      "version": "7.1.3",
      "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.3.tgz",
@ -164,6 +223,14 @@
        "path-is-absolute": "^1.0.0"
      }
    },
+    "has": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/has/-/has-1.0.3.tgz",
+      "integrity": "sha512-f2dvO0VU6Oej7RkWJGrehjbzMAjFp5/VKPp5tTpWIV4JHHZK1/BxbFRtf/siA2SWTe09caDmVtYYzWEIbBS4zw==",
+      "requires": {
+        "function-bind": "^1.1.1"
+      }
+    },
    "inflight": {
      "version": "1.0.6",
      "resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
@ -189,31 +256,61 @@
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    },
    "ip-address": {
-      "version": "5.9.2",
-      "resolved": "https://registry.npmjs.org/ip-address/-/ip-address-5.9.2.tgz",
-      "integrity": "sha512-7aeFm/7oqo0mMhubTSjZ2Juw/F+WJ3hyfCScNVRQdz5RSRhw1Rj4ZlBFsmEajeKgQDI8asqVs31h8DpxEv7IfQ==",
+      "version": "5.9.4",
+      "resolved": "https://registry.npmjs.org/ip-address/-/ip-address-5.9.4.tgz",
+      "integrity": "sha512-dHkI3/YNJq4b/qQaz+c8LuarD3pY24JqZWfjB8aZx1gtpc2MDILu9L9jpZe1sHpzo/yWFweQVn+U//FhazUxmw==",
      "requires": {
        "jsbn": "1.1.0",
-        "lodash": "^4.17.11",
+        "lodash": "^4.17.15",
        "sprintf-js": "1.1.2"
      }
    },
+    "is-arguments": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/is-arguments/-/is-arguments-1.0.4.tgz",
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+    },
+    "is-buffer": {
+      "version": "2.0.4",
+      "resolved": "https://registry.npmjs.org/is-buffer/-/is-buffer-2.0.4.tgz",
+      "integrity": "sha512-Kq1rokWXOPXWuaMAqZiJW4XxsmD9zGx9q4aePabbn3qCRGedtH7Cm+zV8WETitMfu1wdh+Rvd6w5egwSngUX2A=="
+    },
+    "is-date-object": {
+      "version": "1.0.1",
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+      "integrity": "sha1-mqIOtq7rv/d/vTPnTKAbM1gdOhY="
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+      "resolved": "https://registry.npmjs.org/is-regex/-/is-regex-1.0.4.tgz",
+      "integrity": "sha1-VRdIm1RwkbCTDglWVM7SXul+lJE=",
+      "requires": {
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    "jsbn": {
      "version": "1.1.0",
      "resolved": "https://registry.npmjs.org/jsbn/-/jsbn-1.1.0.tgz",
      "integrity": "sha1-sBMHyym2GKHtJux56RH4A8TaAEA="
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    "lodash": {
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-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.14.tgz",
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+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
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-      "resolved": "https://registry.npmjs.org/ltx/-/ltx-2.8.1.tgz",
-      "integrity": "sha512-l4H1FS9I6IVqwvIpUHsSgyxE6t2jP7qd/2MeVG1UhmVK6vlHsQpfm2KNUcbdImeE0ai04vl1qTCF4CPCJqhknQ==",
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+      "resolved": "https://registry.npmjs.org/ltx/-/ltx-2.9.2.tgz",
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      "requires": {
-        "inherits": "^2.0.1"
+        "inherits": "^2.0.4"
+      },
+      "dependencies": {
+        "inherits": {
+          "version": "2.0.4",
+          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
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+        }
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    },
    "make-error": {
@ -234,6 +331,21 @@
      "resolved": "https://registry.npmjs.org/mockery/-/mockery-1.7.0.tgz",
      "integrity": "sha1-9O3g2HUMHJcnwnLqLGBiniyaHE8="
    },
+    "ms": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
+      "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
+    },
+    "object-is": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/object-is/-/object-is-1.0.1.tgz",
+      "integrity": "sha1-CqYOyZiaCz7Xlc9NBvYs8a1lObY="
+    },
+    "object-keys": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/object-keys/-/object-keys-1.1.1.tgz",
+      "integrity": "sha512-NuAESUOUMrlIXOfHKzD6bpPu3tYt3xvjNdRIQ+FeT0lNb4K8WR70CaDxhuNguS2XG+GjkyMwOzsN5ZktImfhLA=="
+    },
    "once": {
      "version": "1.4.0",
      "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
@ -253,6 +365,8 @@
        "@types/ltx": "^2.8.0",
        "@types/node": "^11.13.0",
        "adm-zip": "^0.4.11",
+        "axios": "^0.19.0",
+        "axios-mock-adapter": "^1.17.0",
        "azure-devops-node-api": "^6.6.0",
        "azure-pipelines-task-lib": "^2.8.0",
        "azure-pipelines-tool-lib": "^0.12.0",
@ -266,9 +380,9 @@
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-          "resolved": "https://registry.npmjs.org/@types/node/-/node-11.13.17.tgz",
-          "integrity": "sha512-7W3kSMa8diVH6s24a8Qrmvwu+vG3ahOC/flMHFdWSdnPYoQI0yPO84h5zOWYXAha2Npn3Pw3SSuQSwBUfaniyQ=="
+          "version": "11.15.2",
+          "resolved": "https://registry.npmjs.org/@types/node/-/node-11.15.2.tgz",
+          "integrity": "sha512-BqCU9uIFkUH9Sgo2uLYbmIiFB1T+VBiM8AI/El3LIAI5KzwtckeSG+3WOYZr9aMoX4UIvRFBWBeSaOu6hFue2Q=="
        },
        "azure-devops-node-api": {
          "version": "6.6.3",
@ -317,6 +431,14 @@
        "resolve": "^1.1.6"
      }
    },
+    "regexp.prototype.flags": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/regexp.prototype.flags/-/regexp.prototype.flags-1.2.0.tgz",
+      "integrity": "sha512-ztaw4M1VqgMwl9HlPpOuiYgItcHlunW0He2fE6eNfT6E/CF2FtYi9ofOYe4mKntstYk0Fyh/rDRBdS3AnxjlrA==",
+      "requires": {
+        "define-properties": "^1.1.2"
+      }
+    },
    "resolve": {
      "version": "1.9.0",
      "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.9.0.tgz",
@ -351,9 +473,9 @@
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    },
    "source-map-support": {
-      "version": "0.5.12",
-      "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.5.12.tgz",
-      "integrity": "sha512-4h2Pbvyy15EE02G+JOZpUCmqWJuqrs+sEkzewTm++BPi7Hvn/HwcqLAcNxYAyI0x13CpPPn+kMjl+hplXMHITQ==",
+      "version": "0.5.16",
+      "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.5.16.tgz",
+      "integrity": "sha512-efyLRJDr68D9hBBNIPWFjhpFzURh+KJykQwvMyW5UiZzYwoF6l4YMMDIJJEyFWxWCqfyxLzz6tSfUFR+kXXsVQ==",
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        "buffer-from": "^1.0.0",
        "source-map": "^0.6.0"
@ -365,9 +487,9 @@
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    },
    "ts-node": {
-      "version": "8.3.0",
-      "resolved": "https://registry.npmjs.org/ts-node/-/ts-node-8.3.0.tgz",
-      "integrity": "sha512-dyNS/RqyVTDcmNM4NIBAeDMpsAdaQ+ojdf0GOLqE6nwJOgzEkdRNzJywhDfwnuvB10oa6NLVG1rUJQCpRN7qoQ==",
+      "version": "8.5.0",
+      "resolved": "https://registry.npmjs.org/ts-node/-/ts-node-8.5.0.tgz",
+      "integrity": "sha512-fbG32iZEupNV2E2Fd2m2yt1TdAwR3GTCrJQBHDevIiEBNy1A8kqnyl1fv7jmRmmbtcapFab2glZXHJvfD1ed0Q==",
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        "arg": "^4.1.0",
        "diff": "^4.0.1",
@ -406,9 +528,9 @@
      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
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-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/yn/-/yn-3.1.0.tgz",
-      "integrity": "sha512-kKfnnYkbTfrAdd0xICNFw7Atm8nKpLcLv9AZGEt+kczL/WQVai4e2V6ZN8U/O+iI6WrNuJjNNOyu4zfhl9D3Hg=="
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/yn/-/yn-3.1.1.tgz",
+      "integrity": "sha512-Ux4ygGWsu2c7isFWe8Yu1YluJmqVhxqK2cLXNQA5AcC3QfbGNpM7fu0Y8b/z16pXLnFxZYvWhd3fhBY9DLmC6Q=="
    }
  }
 }
--- a/Tasks/SaveCacheV1/task.json
+++ b/Tasks/SaveCacheV1/task.json
@ -9,7 +9,7 @@
  "version": {
    "Major": 1,
    "Minor": 0,
-    "Patch": 15
+    "Patch": 18
  },
  "instanceNameFormat": "Save artifact based on: $(keyfile)",
  "inputs": [
--- a/Tasks/SaveCacheV1/task.loc.json
+++ b/Tasks/SaveCacheV1/task.loc.json
@ -9,7 +9,7 @@
  "version": {
    "Major": 1,
    "Minor": 0,
-    "Patch": 15
+    "Patch": 18
  },
  "instanceNameFormat": "ms-resource:loc.instanceNameFormat",
  "inputs": [
--- a/package-lock.json
+++ b/package-lock.json
@ -5,9 +5,9 @@
  "requires": true,
  "dependencies": {
    "@types/mocha": {
-      "version": "5.2.6",
-      "resolved": "https://registry.npmjs.org/@types/mocha/-/mocha-5.2.6.tgz",
-      "integrity": "sha512-1axi39YdtBI7z957vdqXI4Ac25e7YihYQtJa+Clnxg1zTJEaIRbndt71O3sP4GAMgiAm0pY26/b9BrY4MR/PMw==",
+      "version": "5.2.7",
+      "resolved": "https://registry.npmjs.org/@types/mocha/-/mocha-5.2.7.tgz",
+      "integrity": "sha512-NYrtPht0wGzhwe9+/idPaBB+TqkY9AhTvOLMkThm0IoEfLaiVQZwBwyJ5puCkO3AUCWrmcoePjp2mbFocKy4SQ==",
      "dev": true
    },
    "@types/node": {
--- a/package.json
+++ b/package.json
@ -24,7 +24,7 @@
  },
  "homepage": "https://github.com/Microsoft/azure-pipelines-artifact-caching-tasks",
  "devDependencies": {
-    "@types/mocha": "^5.2.6",
+    "@types/mocha": "^5.2.7",
    "@types/node": "^11.13.0",
    "gulp": "^3.9.1",
    "gulp-util": "3.0.4",