diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..82ee8b6
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,22 @@
+
+MIT License
+
+Copyright (c) 2019 Mathrix Education SA
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/README.md b/README.md
index 9276708..6c2fa9a 100644
--- a/README.md
+++ b/README.md
@@ -1,25 +1,22 @@
 # @mathrix-education/setup-gcloud
-Small GitHub action to install the Google Cloud SDK on the virtual
-environment.
+Install the Google Cloud SDK in your GitHub Actions workflow.
 
-Proudly maintained by [Mathieu Bour][1.1], Vice-CTO
-[@mathrix-education][1.2].
+**This action is not supported by Google Cloud.**
+
+Proudly maintained by [Mathieu Bour][1.1], Vice-CTO [@mathrix-education][1.2].
 
 [1.1]: https://github.com/mathieu-bour
 [1.2]: https://github.com/mathrix-education
 
 ## Motivations
-Since the advent of GitHub Actions, Mathrix Education SA has chosen to
-migrate from Google Cloud Build to this new compilation system.
+Since the advent of GitHub Actions, Mathrix Education SA has chosen to migrate from Google Cloud Build to this new
+compilation system.
 
-If the official [@actions/gcloud][2.1] action works perfectly, the fact
-that it is in two parts ([auth][2.2] and [cli][2.3]) and that it is
-based on Docker makes it slow and not very suitable for launching
-multiple commands.
+If the official [@actions/gcloud][2.1] action works perfectly, the fact that it is in two parts ([auth][2.2] and
+[cli][2.3]) and that it is based on Docker makes it slow and not very suitable for launching multiple commands.
 
-So we chose to create a JavaScript action to fix this problem, also
-adding additional features, such as Docker authentication with Google
-Cloud Container Registry.
+So we chose to create a JavaScript action to fix this problem, also adding additional features, such as Docker
+authentication with Google Cloud Container Registry.
 
 [2.1]: https://github.com/actions/gcloud
 [2.2]: https://github.com/actions/gcloud/tree/master/auth
@@ -43,17 +40,70 @@ The supported operating systems matrix is the following:
 [3.1]: https://img.shields.io/badge/status-supported-brightgreen
 [3.2]: https://img.shields.io/badge/status-unsupported-red
 
+### Inputs
+| Name                  | Type                           | Default value |
+|-----------------------|--------------------------------|---------------|
+| `version`             | `'latest'` / `string`          | `'latest'`    |
+| `service-account-key` | `string` (base64)              | `''`          |
+| `project`             | `'auto'` / `'none'` / `string` | `'auto'`      |
+| `components`          | `string`                       | `''`          |
+| `configure-docker`    | `true` / `false`               | `false`       |
+
+#### `version`
+If you need a precise version of the Google Cloud SDK, you may provide this input. We strongly advise you to do so
+since using the latest version may break your workflow if Google release a breaking version.
+
+#### `service-account-key`
+To authenticate the SDK, you may provide a **base64-encoded** service account JSON key. In order to secure you workflow,
+use GitHub Actions [secrets][3.3].
+
+[3.3]: https://help.github.com/en/actions/automating-your-workflow-with-github-actions/creating-and-using-encrypted-secrets
+
+#### `project`
+By default, if you provide a `service-account-key`, the action will use it to determine which is the default project.
+
+- If you want to specify a different project (for example, in case of cross-project interaction), you may explicitly
+specify your project ID here.
+- If you want to disable the project configuration and provide your project ID later in your workflow, set this input
+to `none`.
+
+#### `components`
+If you want to install additional SDK components, you may provide them in this input.
+
+#### `configure-docker`
+If you want to push an image to the Google Container Registry, you may authenticate the Docker agent by setting the
+input to true. 
+
 
-## In workflows
+## Examples
 See [action.yml](action.yml) for details.
-Simply add this step in your workflow `steps`.
 
+### Minimum configuration
 ```yaml
 - uses: mathrix-education/setup-gcloud@master
+```
+By default, the minimal example will install the latest Google Cloud SDK. Because no service account key was provided
+you will have to authenticate the SDK yourself (for example, with [`gcloud auth activate-service-account`][4.1]).
+
+[4.1]: https://cloud.google.com/sdk/gcloud/reference/auth/activate-service-account
+
+
+### Typical CI configuration
+```yaml
+- name: Setup Google Cloud SDK
+  uses: mathrix-education/setup-gcloud@0.1.3
   with:
-    version: 245.0.0.0      # default: latest
-    project: my-project     # the default Google Cloud project
-    service-account-key:    # base64 encoded JSON service account key
-    components: beta        # additional components to install
-    configure-docker: true  # configure docker during install
+    service-account-key: ${{ secrets.GCLOUD_AUTH }} # base64-encoded service account JSON key
+    confgure-docker: true
 ```
+In this example, you provide a service account key. The action automatically download the latest version of the SDK and
+authenticate using your key.
+
+Then using the field `"project_id"` of your key, we will set the default project using
+`gcloud config set project {project}`, so you do not have to do it later.
+
+Finally, because you may want to build a Docker image and upload it to the [Google Container Registry][4.2], the action
+will configure Docker to allow the upload of your image. Make sure that the service account has the correct rights to
+write on the bucket linked to the registry.
+
+[4.2]: https://cloud.google.com/container-registry/
diff --git a/action.yml b/action.yml
index cd0fe09..1a2d811 100644
--- a/action.yml
+++ b/action.yml
@@ -8,16 +8,17 @@ runs:
   using: 'node12'
   main: 'dist/index.js'
 inputs:
+  version:
+    description: Google Cloud SDK to use. If left null, will use the latest one.
+    required: false
+    default: latest
   service-account-key:
     description: The service account key to use, base64-encoded.
     required: false
   project:
     description: The default Google Cloud project. You can change it later.
     required: false
-  version:
-    description: Google Cloud SDK to use. If left null, will use the latest one.
-    required: false
-    default: latest
+    default: auto
   components:
     description: Install additional components (e.g. beta, gsutils, etc.)
     required: false
diff --git a/dist/index.js b/dist/index.js
index d4f5aaf..cd95547 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -34,8 +34,10 @@ module.exports =
 /******/ 	// the startup function
 /******/ 	function startup() {
 /******/ 		// Load entry module and return exports
-/******/ 		return __webpack_require__(655);
+/******/ 		return __webpack_require__(840);
 /******/ 	};
+/******/ 	// initialize runtime
+/******/ 	runtime(__webpack_require__);
 /******/
 /******/ 	// run startup
 /******/ 	return startup();
@@ -928,13 +930,6 @@ module.exports = require("tls");
 
 /***/ }),
 
-/***/ 34:
-/***/ (function(module) {
-
-module.exports = require("https");
-
-/***/ }),
-
 /***/ 87:
 /***/ (function(module) {
 
@@ -973,7 +968,7 @@ module.exports = function nodeRNG() {
 var net = __webpack_require__(631);
 var tls = __webpack_require__(16);
 var http = __webpack_require__(605);
-var https = __webpack_require__(34);
+var https = __webpack_require__(211);
 var events = __webpack_require__(614);
 var assert = __webpack_require__(357);
 var util = __webpack_require__(669);
@@ -1217,103 +1212,12 @@ if (process.env.NODE_DEBUG && /\btunnel\b/.test(process.env.NODE_DEBUG)) {
 exports.debug = debug; // for test
 
 
-/***/ }),
-
-/***/ 163:
-/***/ (function(__unusedmodule, exports, __webpack_require__) {
-
-"use strict";
-
-var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
-    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
-    return new (P || (P = Promise))(function (resolve, reject) {
-        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
-        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
-        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
-        step((generator = generator.apply(thisArg, _arguments || [])).next());
-    });
-};
-var __importStar = (this && this.__importStar) || function (mod) {
-    if (mod && mod.__esModule) return mod;
-    var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
-    result["default"] = mod;
-    return result;
-};
-Object.defineProperty(exports, "__esModule", { value: true });
-const core = __importStar(__webpack_require__(470));
-const exec = __importStar(__webpack_require__(986));
-const path_1 = __webpack_require__(622);
-const constants_1 = __webpack_require__(211);
-function isWindows() {
-    return process.platform === 'win32';
-}
-exports.isWindows = isWindows;
-function isMacOS() {
-    return process.platform === 'darwin';
-}
-exports.isMacOS = isMacOS;
-function isUbuntu() {
-    return process.platform === 'linux';
-}
-exports.isUbuntu = isUbuntu;
-function getCloudSDKFolder() {
-    if (isWindows()) {
-        return constants_1.WINDOWS_INSTALL_PATH;
-    }
-    else if (isUbuntu()) {
-        return constants_1.UBUNTU_INSTALL_PATH;
-    }
-    else {
-        const home = process.env.HOME ? process.env.HOME : process.cwd();
-        return path_1.resolve(home, constants_1.INSTALL_DIRECTORY);
-    }
-}
-exports.getCloudSDKFolder = getCloudSDKFolder;
-function getDownloadLink() {
-    const baseUrl = 'https://dl.google.com/dl/cloudsdk/channels/rapid';
-    const version = core.getInput('version');
-    if (version === 'latest') {
-        if (isWindows()) {
-            return `${baseUrl}/google-cloud-sdk.zip`;
-        }
-        else {
-            return `${baseUrl}/google-cloud-sdk.tar.gz`;
-        }
-    }
-    if (isWindows()) {
-        return `${baseUrl}/downloads/google-cloud-sdk-${version}-windows-x86_64.zip`;
-    }
-    else if (isMacOS()) {
-        return `${baseUrl}/downloads/google-cloud-sdk-${version}-darwin-x86_64.tar.gz`;
-    }
-    else {
-        return `${baseUrl}/downloads/google-cloud-sdk-${version}-linux-x86_64.tar.gz`;
-    }
-}
-exports.getDownloadLink = getDownloadLink;
-function gcloud(args, options = undefined) {
-    return __awaiter(this, void 0, void 0, function* () {
-        const gcloudPath = path_1.resolve(getCloudSDKFolder(), 'bin', 'gcloud' + (isWindows() ? '.cmd' : ''));
-        args.unshift('--quiet');
-        yield exec.exec(gcloudPath, args, options);
-    });
-}
-exports.gcloud = gcloud;
-
-
 /***/ }),
 
 /***/ 211:
-/***/ (function(__unusedmodule, exports) {
-
-"use strict";
-
-Object.defineProperty(exports, "__esModule", { value: true });
-exports.INSTALL_DIRECTORY = 'google-cloud-sdk';
-exports.WINDOWS_INSTALL_PATH = `C:\\${exports.INSTALL_DIRECTORY}`;
-exports.UBUNTU_INSTALL_PATH = `/home/runner/${exports.INSTALL_DIRECTORY}`;
+/***/ (function(module) {
 
+module.exports = require("https");
 
 /***/ }),
 
@@ -3215,69 +3119,6 @@ function getState(name) {
 exports.getState = getState;
 //# sourceMappingURL=core.js.map
 
-/***/ }),
-
-/***/ 526:
-/***/ (function(__unusedmodule, exports, __webpack_require__) {
-
-"use strict";
-
-var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
-    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
-    return new (P || (P = Promise))(function (resolve, reject) {
-        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
-        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
-        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
-        step((generator = generator.apply(thisArg, _arguments || [])).next());
-    });
-};
-var __importStar = (this && this.__importStar) || function (mod) {
-    if (mod && mod.__esModule) return mod;
-    var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
-    result["default"] = mod;
-    return result;
-};
-Object.defineProperty(exports, "__esModule", { value: true });
-const core = __importStar(__webpack_require__(470));
-const exec = __importStar(__webpack_require__(986));
-const child_process_1 = __webpack_require__(129);
-const path_1 = __webpack_require__(622);
-const utils_1 = __webpack_require__(163);
-/**
- * Setup the Google Cloud SDK.
- */
-function setup() {
-    return __awaiter(this, void 0, void 0, function* () {
-        const installScriptExtension = utils_1.isWindows() ? 'bat' : 'sh';
-        const installScript = path_1.resolve(utils_1.getCloudSDKFolder(), `install.${installScriptExtension}`);
-        const args = [
-            '--usage-reporting=false',
-            '--command-completion=false',
-            '--path-update=true',
-            '--usage-reporting=false',
-            '--quiet',
-        ];
-        if (core.getInput('components')) {
-            args.push('--additional-components=' + core.getInput('components'));
-        }
-        if (utils_1.isWindows()) {
-            // @actions/exec does not exit on windows
-            child_process_1.execSync(`"${installScript}" ${args.join(' ')}`, { stdio: 'inherit' });
-        }
-        else {
-            yield exec.exec(installScript, args);
-        }
-        if (core.getInput('project')) {
-            yield utils_1.gcloud(['config', 'set', 'project', core.getInput('project')]);
-        }
-        const binPath = path_1.resolve(utils_1.getCloudSDKFolder(), 'bin');
-        core.addPath(binPath);
-    });
-}
-exports.setup = setup;
-
-
 /***/ }),
 
 /***/ 533:
@@ -3744,65 +3585,6 @@ module.exports = require("events");
 
 module.exports = require("path");
 
-/***/ }),
-
-/***/ 629:
-/***/ (function(__unusedmodule, exports, __webpack_require__) {
-
-"use strict";
-
-var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
-    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
-    return new (P || (P = Promise))(function (resolve, reject) {
-        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
-        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
-        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
-        step((generator = generator.apply(thisArg, _arguments || [])).next());
-    });
-};
-var __importStar = (this && this.__importStar) || function (mod) {
-    if (mod && mod.__esModule) return mod;
-    var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
-    result["default"] = mod;
-    return result;
-};
-Object.defineProperty(exports, "__esModule", { value: true });
-const core = __importStar(__webpack_require__(470));
-const fs_1 = __webpack_require__(747);
-const path_1 = __webpack_require__(622);
-const utils_1 = __webpack_require__(163);
-/**
- * Authenticate the Google Cloud SDK.
- */
-function authenticate() {
-    return __awaiter(this, void 0, void 0, function* () {
-        // If service account key is not provided, skip the authentication
-        if (!core.getInput('service-account-key')) {
-            return;
-        }
-        // Write the service account key
-        const serviceAccountKeyBase64 = core.getInput('service-account-key');
-        const serviceAccountKeyJson = Buffer.from(serviceAccountKeyBase64, 'base64');
-        const serviceAccountKeyPath = path_1.resolve(process.cwd(), 'gcloud.json');
-        fs_1.writeFileSync(serviceAccountKeyPath, serviceAccountKeyJson);
-        // Activate the service account
-        yield utils_1.gcloud([
-            'auth',
-            'activate-service-account',
-            `--key-file=${serviceAccountKeyPath}`,
-        ]);
-        // Configure Docker if necessary
-        if (core.getInput('configure-docker')) {
-            yield utils_1.gcloud(['--quiet', 'auth', 'configure-docker']);
-        }
-        // Remove the service account key
-        fs_1.unlinkSync(serviceAccountKeyPath);
-    });
-}
-exports.authenticate = authenticate;
-
-
 /***/ }),
 
 /***/ 631:
@@ -3810,64 +3592,6 @@ exports.authenticate = authenticate;
 
 module.exports = require("net");
 
-/***/ }),
-
-/***/ 655:
-/***/ (function(__unusedmodule, exports, __webpack_require__) {
-
-"use strict";
-
-var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
-    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
-    return new (P || (P = Promise))(function (resolve, reject) {
-        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
-        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
-        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
-        step((generator = generator.apply(thisArg, _arguments || [])).next());
-    });
-};
-var __importStar = (this && this.__importStar) || function (mod) {
-    if (mod && mod.__esModule) return mod;
-    var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
-    result["default"] = mod;
-    return result;
-};
-Object.defineProperty(exports, "__esModule", { value: true });
-const core = __importStar(__webpack_require__(470));
-const authenticate_1 = __webpack_require__(629);
-const download_1 = __webpack_require__(725);
-const setup_1 = __webpack_require__(526);
-const utils_1 = __webpack_require__(163);
-/**
- * Install the Google Cloud SDK.
- */
-function install() {
-    return __awaiter(this, void 0, void 0, function* () {
-        try {
-            // Currently, Windows is disabled because the installer does not work properly
-            if (utils_1.isWindows()) {
-                core.error('This action does not support Windows for now. PR are welcome!');
-            }
-            yield download_1.download();
-            yield setup_1.setup();
-            yield authenticate_1.authenticate();
-        }
-        catch (e) {
-            core.setFailed(e.message);
-        }
-    });
-}
-exports.install = install;
-install()
-    .then(() => {
-    core.info('Installation succeeded');
-})
-    .catch(() => {
-    core.error('Installation failed');
-});
-
-
 /***/ }),
 
 /***/ 669:
@@ -4108,54 +3832,6 @@ function bytesToUuid(buf, offset) {
 module.exports = bytesToUuid;
 
 
-/***/ }),
-
-/***/ 725:
-/***/ (function(__unusedmodule, exports, __webpack_require__) {
-
-"use strict";
-
-var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
-    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
-    return new (P || (P = Promise))(function (resolve, reject) {
-        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
-        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
-        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
-        step((generator = generator.apply(thisArg, _arguments || [])).next());
-    });
-};
-var __importStar = (this && this.__importStar) || function (mod) {
-    if (mod && mod.__esModule) return mod;
-    var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
-    result["default"] = mod;
-    return result;
-};
-Object.defineProperty(exports, "__esModule", { value: true });
-const tc = __importStar(__webpack_require__(533));
-const utils_1 = __webpack_require__(163);
-const fs_1 = __webpack_require__(747);
-const path_1 = __webpack_require__(622);
-/**
- * Download the Google Cloud SDK archive.
- */
-function download() {
-    return __awaiter(this, void 0, void 0, function* () {
-        const downloadLink = utils_1.getDownloadLink();
-        const downloadPath = yield tc.downloadTool(downloadLink);
-        const extractionPath = path_1.resolve(utils_1.getCloudSDKFolder(), '..');
-        fs_1.mkdirSync(utils_1.getCloudSDKFolder());
-        if (downloadLink.endsWith('.zip')) {
-            yield tc.extractZip(downloadPath, extractionPath);
-        }
-        else if (downloadLink.endsWith('.tar.gz')) {
-            yield tc.extractTar(downloadPath, extractionPath);
-        }
-    });
-}
-exports.download = download;
-
-
 /***/ }),
 
 /***/ 747:
@@ -4206,6 +3882,227 @@ module.exports = v4;
 
 module.exports = require("url");
 
+/***/ }),
+
+/***/ 840:
+/***/ (function(__unusedmodule, __webpack_exports__, __webpack_require__) {
+
+"use strict";
+__webpack_require__.r(__webpack_exports__);
+
+// EXTERNAL MODULE: ./node_modules/@actions/core/lib/core.js
+var core = __webpack_require__(470);
+
+// EXTERNAL MODULE: external "fs"
+var external_fs_ = __webpack_require__(747);
+
+// EXTERNAL MODULE: external "path"
+var external_path_ = __webpack_require__(622);
+
+// EXTERNAL MODULE: ./node_modules/@actions/exec/lib/exec.js
+var exec = __webpack_require__(986);
+
+// CONCATENATED MODULE: ./src/constants.ts
+const INSTALL_DIRECTORY = 'google-cloud-sdk';
+const WINDOWS_INSTALL_PATH = `C:\\${INSTALL_DIRECTORY}`;
+const UBUNTU_INSTALL_PATH = `/home/runner/${INSTALL_DIRECTORY}`;
+
+// CONCATENATED MODULE: ./src/utils.ts
+
+
+
+
+function isWindows() {
+    return process.platform === 'win32';
+}
+function isMacOS() {
+    return process.platform === 'darwin';
+}
+function isUbuntu() {
+    return process.platform === 'linux';
+}
+function getCloudSDKFolder() {
+    if (isWindows()) {
+        return WINDOWS_INSTALL_PATH;
+    }
+    else if (isUbuntu()) {
+        return UBUNTU_INSTALL_PATH;
+    }
+    else {
+        const home = process.env.HOME ? process.env.HOME : process.cwd();
+        return Object(external_path_.resolve)(home, INSTALL_DIRECTORY);
+    }
+}
+function getDownloadLink() {
+    const baseUrl = 'https://dl.google.com/dl/cloudsdk/channels/rapid';
+    const version = Object(core.getInput)('version');
+    if (version === 'latest') {
+        if (isWindows()) {
+            return `${baseUrl}/google-cloud-sdk.zip`;
+        }
+        else {
+            return `${baseUrl}/google-cloud-sdk.tar.gz`;
+        }
+    }
+    if (isWindows()) {
+        return `${baseUrl}/downloads/google-cloud-sdk-${version}-windows-x86_64.zip`;
+    }
+    else if (isMacOS()) {
+        return `${baseUrl}/downloads/google-cloud-sdk-${version}-darwin-x86_64.tar.gz`;
+    }
+    else {
+        return `${baseUrl}/downloads/google-cloud-sdk-${version}-linux-x86_64.tar.gz`;
+    }
+}
+async function gcloud(args, options = undefined) {
+    const gcloudPath = Object(external_path_.resolve)(getCloudSDKFolder(), 'bin', 'gcloud' + (isWindows() ? '.cmd' : ''));
+    args.unshift('--quiet');
+    await Object(exec.exec)(gcloudPath, args, options);
+}
+
+// CONCATENATED MODULE: ./src/authenticate.ts
+
+
+
+
+/**
+ * Authenticate the Google Cloud SDK.
+ */
+async function authenticate() {
+    // If service account key is not provided, skip the authentication
+    if (!Object(core.getInput)('service-account-key')) {
+        Object(core.warning)('No service-account-key input was passed.' +
+            'If it is intentional, you can safely ignore this warning.');
+        return;
+    }
+    // Write the service account key
+    const serviceAccountKeyBase64 = Object(core.getInput)('service-account-key');
+    const serviceAccountKeyJson = Buffer.from(serviceAccountKeyBase64, 'base64');
+    const serviceAccountKeyPath = Object(external_path_.resolve)(process.cwd(), 'gcloud.json');
+    Object(external_fs_.writeFileSync)(serviceAccountKeyPath, serviceAccountKeyJson);
+    // Activate the service account
+    await gcloud([
+        'auth',
+        'activate-service-account',
+        `--key-file=${serviceAccountKeyPath}`,
+    ]);
+    // Configure Docker if necessary
+    if (Object(core.getInput)('configure-docker')) {
+        await gcloud(['--quiet', 'auth', 'configure-docker']);
+    }
+    // Remove the service account key
+    Object(external_fs_.unlinkSync)(serviceAccountKeyPath);
+}
+
+// EXTERNAL MODULE: ./node_modules/@actions/tool-cache/lib/tool-cache.js
+var tool_cache = __webpack_require__(533);
+
+// EXTERNAL MODULE: ./node_modules/@actions/io/lib/io.js
+var io = __webpack_require__(1);
+
+// CONCATENATED MODULE: ./src/download.ts
+
+
+
+
+/**
+ * Download the Google Cloud SDK archive.
+ */
+async function download() {
+    const downloadLink = getDownloadLink();
+    const downloadPath = await Object(tool_cache.downloadTool)(downloadLink);
+    const extractionPath = Object(external_path_.resolve)(getCloudSDKFolder(), '..');
+    await Object(io.mkdirP)(getCloudSDKFolder());
+    if (downloadLink.endsWith('.zip')) {
+        await Object(tool_cache.extractZip)(downloadPath, extractionPath);
+    }
+    else if (downloadLink.endsWith('.tar.gz')) {
+        await Object(tool_cache.extractTar)(downloadPath, extractionPath);
+    }
+}
+
+// EXTERNAL MODULE: external "child_process"
+var external_child_process_ = __webpack_require__(129);
+
+// CONCATENATED MODULE: ./src/setup.ts
+
+
+
+
+
+/**
+ * Setup the Google Cloud SDK.
+ */
+async function setup() {
+    const installScriptExtension = isWindows() ? 'bat' : 'sh';
+    const installScript = Object(external_path_.resolve)(getCloudSDKFolder(), `install.${installScriptExtension}`);
+    const args = [
+        '--usage-reporting=false',
+        '--command-completion=false',
+        '--path-update=false',
+        '--usage-reporting=false',
+        '--quiet',
+    ];
+    if (Object(core.getInput)('components')) {
+        args.push('--additional-components=' + Object(core.getInput)('components'));
+    }
+    if (isWindows()) {
+        // @actions/exec does not exit on windows
+        Object(external_child_process_.execSync)(`"${installScript}" ${args.join(' ')}`, { stdio: 'inherit' });
+    }
+    else {
+        await Object(exec.exec)(installScript, args);
+    }
+    if (Object(core.getInput)('project') === 'auto' &&
+        Object(core.getInput)('service-account-key')) {
+        // Project will be read from the service account key
+        const buffer = new Buffer(Object(core.getInput)('service-account-key'), 'base64');
+        const serviceAccountKey = JSON.parse(buffer.toString());
+        if (serviceAccountKey.hasOwnProperty('project_id')) {
+            await gcloud(['config', 'set', 'project', serviceAccountKey.project_id]);
+        }
+    }
+    else if (Object(core.getInput)('project') !== 'none') {
+        // Project was passed as input
+        await gcloud(['config', 'set', 'project', Object(core.getInput)('project')]);
+    }
+    const binPath = Object(external_path_.resolve)(getCloudSDKFolder(), 'bin');
+    Object(core.addPath)(binPath);
+}
+
+// CONCATENATED MODULE: ./src/install.ts
+/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "install", function() { return install; });
+
+
+
+
+
+/**
+ * Install the Google Cloud SDK.
+ */
+async function install() {
+    try {
+        // Currently, Windows is disabled because the installer does not work properly
+        if (isWindows()) {
+            Object(core.error)('This action does not support Windows for now. PR are welcome!');
+        }
+        await download();
+        await setup();
+        await authenticate();
+    }
+    catch (e) {
+        Object(core.setFailed)(e.message);
+    }
+}
+install()
+    .then(() => {
+    Object(core.info)('Installation succeeded');
+})
+    .catch(() => {
+    Object(core.error)('Installation failed');
+});
+
+
 /***/ }),
 
 /***/ 874:
@@ -4226,7 +4123,7 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, ge
 Object.defineProperty(exports, "__esModule", { value: true });
 const url = __webpack_require__(835);
 const http = __webpack_require__(605);
-const https = __webpack_require__(34);
+const https = __webpack_require__(211);
 let fs;
 let tunnel;
 var HttpCodes;
@@ -4715,4 +4612,62 @@ exports.exec = exec;
 
 /***/ })
 
-/******/ });
\ No newline at end of file
+/******/ },
+/******/ function(__webpack_require__) { // webpackRuntimeModules
+/******/ 	"use strict";
+/******/ 
+/******/ 	/* webpack/runtime/make namespace object */
+/******/ 	!function() {
+/******/ 		// define __esModule on exports
+/******/ 		__webpack_require__.r = function(exports) {
+/******/ 			if(typeof Symbol !== 'undefined' && Symbol.toStringTag) {
+/******/ 				Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
+/******/ 			}
+/******/ 			Object.defineProperty(exports, '__esModule', { value: true });
+/******/ 		};
+/******/ 	}();
+/******/ 	
+/******/ 	/* webpack/runtime/define property getter */
+/******/ 	!function() {
+/******/ 		// define getter function for harmony exports
+/******/ 		var hasOwnProperty = Object.prototype.hasOwnProperty;
+/******/ 		__webpack_require__.d = function(exports, name, getter) {
+/******/ 			if(!hasOwnProperty.call(exports, name)) {
+/******/ 				Object.defineProperty(exports, name, { enumerable: true, get: getter });
+/******/ 			}
+/******/ 		};
+/******/ 	}();
+/******/ 	
+/******/ 	/* webpack/runtime/create fake namespace object */
+/******/ 	!function() {
+/******/ 		// create a fake namespace object
+/******/ 		// mode & 1: value is a module id, require it
+/******/ 		// mode & 2: merge all properties of value into the ns
+/******/ 		// mode & 4: return value when already ns object
+/******/ 		// mode & 8|1: behave like require
+/******/ 		__webpack_require__.t = function(value, mode) {
+/******/ 			if(mode & 1) value = this(value);
+/******/ 			if(mode & 8) return value;
+/******/ 			if((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;
+/******/ 			var ns = Object.create(null);
+/******/ 			__webpack_require__.r(ns);
+/******/ 			Object.defineProperty(ns, 'default', { enumerable: true, value: value });
+/******/ 			if(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));
+/******/ 			return ns;
+/******/ 		};
+/******/ 	}();
+/******/ 	
+/******/ 	/* webpack/runtime/compat get default export */
+/******/ 	!function() {
+/******/ 		// getDefaultExport function for compatibility with non-harmony modules
+/******/ 		__webpack_require__.n = function(module) {
+/******/ 			var getter = module && module.__esModule ?
+/******/ 				function getDefault() { return module['default']; } :
+/******/ 				function getModuleExports() { return module; };
+/******/ 			__webpack_require__.d(getter, 'a', getter);
+/******/ 			return getter;
+/******/ 		};
+/******/ 	}();
+/******/ 	
+/******/ }
+);
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index ebe153c..cdfc3ed 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "@mathrix-education/setup-gcloud",
-  "version": "0.1.1",
+  "version": "0.1.2",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 47a2f8d..aec4022 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@mathrix-education/setup-gcloud",
-  "version": "0.1.2",
-  "description": "Small GitHub action to install the Google Cloud SDK on the virtual environment.",
+  "version": "0.1.3",
+  "description": "Install the Google Cloud SDK in your GitHub Actions workflow.",
   "keywords": [
     "github-actions",
     "actions",
diff --git a/src/authenticate.ts b/src/authenticate.ts
index e51fb2c..3ec3ed0 100644
--- a/src/authenticate.ts
+++ b/src/authenticate.ts
@@ -9,6 +9,10 @@ import { gcloud } from './utils';
 export async function authenticate(): Promise<void> {
   // If service account key is not provided, skip the authentication
   if (!core.getInput('service-account-key')) {
+    core.warning(
+      'No service-account-key input was passed.' +
+        'If it is intentional, you can safely ignore this warning.',
+    );
     return;
   }
 
diff --git a/src/download.ts b/src/download.ts
index fde5822..0983331 100644
--- a/src/download.ts
+++ b/src/download.ts
@@ -1,7 +1,7 @@
 import * as tc from '@actions/tool-cache';
 import { getCloudSDKFolder, getDownloadLink } from './utils';
-import { mkdirSync } from 'fs';
 import { resolve } from 'path';
+import * as io from '@actions/io';
 
 /**
  * Download the Google Cloud SDK archive.
@@ -11,7 +11,7 @@ export async function download(): Promise<void> {
   const downloadPath = await tc.downloadTool(downloadLink);
   const extractionPath = resolve(getCloudSDKFolder(), '..');
 
-  mkdirSync(getCloudSDKFolder());
+  await io.mkdirP(getCloudSDKFolder());
 
   if (downloadLink.endsWith('.zip')) {
     await tc.extractZip(downloadPath, extractionPath);
diff --git a/src/setup.ts b/src/setup.ts
index 2e4b723..58249b9 100644
--- a/src/setup.ts
+++ b/src/setup.ts
@@ -17,7 +17,7 @@ export async function setup(): Promise<void> {
   const args = [
     '--usage-reporting=false',
     '--command-completion=false',
-    '--path-update=true',
+    '--path-update=false',
     '--usage-reporting=false',
     '--quiet',
   ];
@@ -33,7 +33,21 @@ export async function setup(): Promise<void> {
     await exec.exec(installScript, args);
   }
 
-  if (core.getInput('project')) {
+  if (
+    core.getInput('project') === 'auto' &&
+    core.getInput('service-account-key')
+  ) {
+    // Project will be read from the service account key
+    const buffer = new Buffer(core.getInput('service-account-key'), 'base64');
+    const serviceAccountKey: { project_id: string } = JSON.parse(
+      buffer.toString(),
+    );
+
+    if (serviceAccountKey.hasOwnProperty('project_id')) {
+      await gcloud(['config', 'set', 'project', serviceAccountKey.project_id]);
+    }
+  } else if (core.getInput('project') !== 'none') {
+    // Project was passed as input
     await gcloud(['config', 'set', 'project', core.getInput('project')]);
   }
 
diff --git a/tsconfig.json b/tsconfig.json
index f1111e5..831c063 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,8 +1,11 @@
 {
   "compilerOptions": {
-    "module": "commonjs",
-    "target": "es6",
+    "target": "es2018",
+    "moduleResolution": "node",
     "strict": true,
+    "lib": [
+      "es6"
+    ],
     "outDir": "./dist",
     "rootDir": "./src",
     "esModuleInterop": true,