--- /dev/null
+"use strict";
+/**
+ * Copyright 2018 Google LLC. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
+ 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) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
+ step((generator = generator.apply(thisArg, _arguments || [])).next());
+ });
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+const gcpMetadata = require("gcp-metadata");
+var GCPEnv;
+(function (GCPEnv) {
+ GCPEnv["APP_ENGINE"] = "APP_ENGINE";
+ GCPEnv["KUBERNETES_ENGINE"] = "KUBERNETES_ENGINE";
+ GCPEnv["CLOUD_FUNCTIONS"] = "CLOUD_FUNCTIONS";
+ GCPEnv["COMPUTE_ENGINE"] = "COMPUTE_ENGINE";
+ GCPEnv["NONE"] = "NONE";
+})(GCPEnv = exports.GCPEnv || (exports.GCPEnv = {}));
+let env;
+function clear() {
+ env = undefined;
+}
+exports.clear = clear;
+function getEnv() {
+ return __awaiter(this, void 0, void 0, function* () {
+ if (!env) {
+ if (isAppEngine()) {
+ env = GCPEnv.APP_ENGINE;
+ }
+ else if (isCloudFunction()) {
+ env = GCPEnv.CLOUD_FUNCTIONS;
+ }
+ else if (yield isKubernetesEngine()) {
+ env = GCPEnv.KUBERNETES_ENGINE;
+ }
+ else if (yield isComputeEngine()) {
+ env = GCPEnv.COMPUTE_ENGINE;
+ }
+ else {
+ env = GCPEnv.NONE;
+ }
+ }
+ return env;
+ });
+}
+exports.getEnv = getEnv;
+function isAppEngine() {
+ return !!(process.env.GAE_SERVICE || process.env.GAE_MODULE_NAME);
+}
+function isCloudFunction() {
+ return !!process.env.FUNCTION_NAME;
+}
+function isKubernetesEngine() {
+ return __awaiter(this, void 0, void 0, function* () {
+ try {
+ yield gcpMetadata.instance('attributes/cluster-name');
+ return true;
+ }
+ catch (e) {
+ return false;
+ }
+ });
+}
+function isComputeEngine() {
+ return __awaiter(this, void 0, void 0, function* () {
+ return gcpMetadata.isAvailable();
+ });
+}
+//# sourceMappingURL=envDetect.js.map
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