get adb config from env vars

Summary:
REact adb config from env vars:
- `ADB_SERVER_SOCKET`
- `ANDROID_ADB_SERVER_PORT`

Reviewed By: lawrencelomax

Differential Revision: D14002603

fbshipit-source-id: e30fa4354ab15048d4350654979fd0b6f394cd89

src/utils/CertificateProvider.js

@@ -20,6 +20,7 @@ const tmpFile = promisify(tmp.file);
 const tmpDir = promisify(tmp.dir);
 import iosUtil from '../fb-stubs/iOSContainerUtility';
 import {reportPlatformFailures} from './metrics';
+import adbConfig from './adbConfig';
 
 // Desktop file paths
 const os = require('os');
@@ -75,9 +76,7 @@ export default class CertificateProvider {
 
   constructor(server: Server, logger: LogManager) {
     this.logger = logger;
-    this.adb = adb.createClient({
-      port: process.env.ANDROID_ADB_SERVER_PORT || '5037',
-    });
+    this.adb = adb.createClient(adbConfig());
     this.certificateSetup = reportPlatformFailures(
       this.ensureServerCertExists(),
       'ensureServerCertExists',

src/utils/__tests__/adbConfig.js

@@ -0,0 +1,45 @@
+/**
+ * Copyright 2018-present Facebook.
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ * @format
+ */
+
+import adbConfig from '../adbConfig';
+
+test('get host and port from ADB_SERVER_SOCKET', () => {
+  process.env.ANDROID_ADB_SERVER_PORT = undefined;
+  process.env.ADB_SERVER_SOCKET = 'tcp:127.0.0.1:5037';
+  const {port, host} = adbConfig();
+  expect(port).toBe(5037);
+  expect(host).toBe('127.0.0.1');
+});
+
+test('get IPv6 address from ADB_SERVER_SOCKET', () => {
+  process.env.ANDROID_ADB_SERVER_PORT = undefined;
+  process.env.ADB_SERVER_SOCKET = 'tcp::::1:5037';
+  const {host} = adbConfig();
+  expect(host).toBe(':::1');
+});
+
+test('get port from ANDROID_ADB_SERVER_PORT', () => {
+  process.env.ANDROID_ADB_SERVER_PORT = '1337';
+  process.env.ADB_SERVER_SOCKET = undefined;
+  const {port} = adbConfig();
+  expect(port).toBe(1337);
+});
+
+test('prefer ADB_SERVER_SOCKET over ANDROID_ADB_SERVER_PORT', () => {
+  process.env.ANDROID_ADB_SERVER_PORT = '1337';
+  process.env.ADB_SERVER_SOCKET = 'tcp:127.0.0.1:5037';
+  const {port} = adbConfig();
+  expect(port).toBe(5037);
+});
+
+test('have defaults', () => {
+  process.env.ANDROID_ADB_SERVER_PORT = undefined;
+  process.env.ADB_SERVER_SOCKET = undefined;
+  const {port, host} = adbConfig();
+  expect(port).toBe(5037);
+  expect(host).toBe('localhost');
+});

src/utils/adbConfig.js

@@ -0,0 +1,25 @@
+/**
+ * Copyright 2018-present Facebook.
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ * @format
+ */
+
+export default () => {
+  let port = parseInt(process.env.ANDROID_ADB_SERVER_PORT, 10) || 5037;
+  let host = 'localhost';
+
+  const socket = (process.env.ADB_SERVER_SOCKET || '').trim();
+  if (socket && socket.length > 0) {
+    const match = socket.match(/^(tcp:)(\S+):(\d+)/);
+    if (match && match.length === 4) {
+      host = match[2];
+      port = parseInt(match[3], 10);
+    }
+  }
+
+  return {
+    port,
+    host,
+  };
+};