Support customizing emulator port (#383)

* Add port parameter

* Fix a typo in test description

* Fix avd not being started with correct port

* Fix wrong port being used to kill an emulator if there was an exception

README.md

@@ -191,6 +191,7 @@ jobs:
 | `avd-name` | Optional | `test` | Custom AVD name used for creating the Android Virtual Device. |
 | `force-avd-creation` | Optional | `true` | Whether to force create the AVD by overwriting an existing AVD with the same name as `avd-name` - `true` or `false`. |
 | `emulator-boot-timeout` | Optional | `600` | Emulator boot timeout in seconds. If it takes longer to boot, the action would fail - e.g. `300` for 5 minutes. |
+| `emulator-port` | Optional | `5554` | Emulator port to use. Allows to run this action on multiple workers on a single machine at the same time. This input is available for the script as `EMULATOR_PORT` enviromental variable. This port is automatically used by android device related tasks in gradle |
 | `emulator-options` | Optional | See below | Command-line options used when launching the emulator (replacing all default options) - e.g. `-no-window -no-snapshot -camera-back emulated`. |
 | `disable-animations` | Optional | `true` | Whether to disable animations - `true` or `false`. |
 | `disable-spellchecker` | Optional | `false` | Whether to disable spellchecker - `true` or `false`. |

__tests__/input-validator.test.ts

@@ -1,4 +1,5 @@
 import * as validator from '../src/input-validator';
+import { MAX_PORT, MIN_PORT } from '../src/input-validator';
 
 describe('api-level validator tests', () => {
   it('Throws if api-level is not a number', () => {
@@ -172,6 +173,33 @@ describe('force-avd-creation validator tests', () => {
   });
 });
 
+describe('emulator-port validator tests', () => {
+  it('Validates if emulator-port is even and in range', () => {
+    const func = () => {
+      validator.checkPort(5554);
+    };
+    expect(func).not.toThrow();
+  });
+  it('Throws if emulator-port is lower than MIN_PORT', () => {
+    const func = () => {
+      validator.checkPort(MIN_PORT - 2);
+    };
+    expect(func).toThrow();
+  });
+  it('Throws if emulator-port is higher than MAX_PORT', () => {
+    const func = () => {
+      validator.checkPort(MAX_PORT + 2);
+    };
+    expect(func).toThrow();
+  });
+  it('Throws if emulator-port is odd', () => {
+    const func = () => {
+      validator.checkPort(5555);
+    };
+    expect(func).toThrow();
+  });
+});
+
 describe('disable-animations validator tests', () => {
   it('Throws if disable-animations is not a boolean', () => {
     const func = () => {

action-types.yml

@@ -37,6 +37,8 @@ inputs:
    type: boolean
   emulator-boot-timeout:
    type: integer
+  emulator-port:
+    type: integer
   emulator-options:
    type: string
   disable-animations:

action.yml

@@ -36,6 +36,9 @@ inputs:
   emulator-boot-timeout:
     description: 'Emulator boot timeout in seconds. If it takes longer to boot, the action would fail - e.g. `300` for 5 minutes'
     default: '600'
+  emulator-port:
+    description: 'Port to run emulator on, allows to run multiple emulators on the same physical machine'
+    default: '5554'
   emulator-options:
     description: 'command-line options used when launching the emulator - e.g. `-no-window -no-snapshot -camera-back emulated`'
     default: '-no-window -gpu swiftshader_indirect -no-snapshot -noaudio -no-boot-anim'

lib/emulator-manager.js

@@ -38,7 +38,7 @@ const fs = __importStar(require("fs"));
 /**
  * Creates and launches a new AVD instance with the specified configurations.
  */
-function launchEmulator(apiLevel, target, arch, profile, cores, ramSize, heapSize, sdcardPathOrSize, diskSize, avdName, forceAvdCreation, emulatorBootTimeout, emulatorOptions, disableAnimations, disableSpellChecker, disableLinuxHardwareAcceleration, enableHardwareKeyboard) {
+function launchEmulator(apiLevel, target, arch, profile, cores, ramSize, heapSize, sdcardPathOrSize, diskSize, avdName, forceAvdCreation, emulatorBootTimeout, port, emulatorOptions, disableAnimations, disableSpellChecker, disableLinuxHardwareAcceleration, enableHardwareKeyboard) {
     return __awaiter(this, void 0, void 0, function* () {
         try {
             console.log(`::group::Launch Emulator`);
@@ -82,19 +82,19 @@ function launchEmulator(apiLevel, target, arch, profile, cores, ramSize, heapSiz
                 },
             });
             // wait for emulator to complete booting
-            yield waitForDevice(emulatorBootTimeout);
-            yield exec.exec(`adb shell input keyevent 82`);
+            yield waitForDevice(port, emulatorBootTimeout);
+            yield adb(port, `shell input keyevent 82`);
             if (disableAnimations) {
                 console.log('Disabling animations.');
-                yield exec.exec(`adb shell settings put global window_animation_scale 0.0`);
-                yield exec.exec(`adb shell settings put global transition_animation_scale 0.0`);
-                yield exec.exec(`adb shell settings put global animator_duration_scale 0.0`);
+                yield adb(port, `shell settings put global window_animation_scale 0.0`);
+                yield adb(port, `shell settings put global transition_animation_scale 0.0`);
+                yield adb(port, `shell settings put global animator_duration_scale 0.0`);
             }
             if (disableSpellChecker) {
-                yield exec.exec(`adb shell settings put secure spell_checker_enabled 0`);
+                yield adb(port, `shell settings put secure spell_checker_enabled 0`);
             }
             if (enableHardwareKeyboard) {
-                yield exec.exec(`adb shell settings put secure show_ime_with_hard_keyboard 0`);
+                yield adb(port, `shell settings put secure show_ime_with_hard_keyboard 0`);
             }
         }
         finally {
@@ -106,11 +106,11 @@ exports.launchEmulator = launchEmulator;
 /**
  * Kills the running emulator on the default port.
  */
-function killEmulator() {
+function killEmulator(port) {
     return __awaiter(this, void 0, void 0, function* () {
         try {
             console.log(`::group::Terminate Emulator`);
-            yield exec.exec(`adb -s emulator-5554 emu kill`);
+            yield adb(port, `emu kill`);
         }
         catch (error) {
             console.log(error instanceof Error ? error.message : error);
@@ -121,10 +121,15 @@ function killEmulator() {
     });
 }
 exports.killEmulator = killEmulator;
+function adb(port, command) {
+    return __awaiter(this, void 0, void 0, function* () {
+        return yield exec.exec(`adb -s emulator-${port} ${command}`);
+    });
+}
 /**
  * Wait for emulator to boot.
  */
-function waitForDevice(emulatorBootTimeout) {
+function waitForDevice(port, emulatorBootTimeout) {
     return __awaiter(this, void 0, void 0, function* () {
         let booted = false;
         let attempts = 0;
@@ -133,7 +138,7 @@ function waitForDevice(emulatorBootTimeout) {
         while (!booted) {
             try {
                 let result = '';
-                yield exec.exec(`adb shell getprop sys.boot_completed`, [], {
+                yield exec.exec(`adb -s emulator-${port} shell getprop sys.boot_completed`, [], {
                     listeners: {
                         stdout: (data) => {
                             result += data.toString();

lib/input-validator.js

@@ -1,10 +1,12 @@
 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
-exports.checkDiskSize = exports.checkEmulatorBuild = exports.checkEnableHardwareKeyboard = exports.checkDisableLinuxHardwareAcceleration = exports.checkDisableSpellchecker = exports.checkDisableAnimations = exports.checkForceAvdCreation = exports.checkChannel = exports.checkArch = exports.checkTarget = exports.checkApiLevel = exports.PREVIEW_API_LEVELS = exports.VALID_CHANNELS = exports.VALID_ARCHS = exports.VALID_TARGETS = exports.MIN_API_LEVEL = void 0;
+exports.checkDiskSize = exports.checkEmulatorBuild = exports.checkEnableHardwareKeyboard = exports.checkDisableLinuxHardwareAcceleration = exports.checkDisableSpellchecker = exports.checkDisableAnimations = exports.checkPort = exports.checkForceAvdCreation = exports.checkChannel = exports.checkArch = exports.checkTarget = exports.checkApiLevel = exports.PREVIEW_API_LEVELS = exports.MAX_PORT = exports.MIN_PORT = exports.VALID_CHANNELS = exports.VALID_ARCHS = exports.VALID_TARGETS = exports.MIN_API_LEVEL = void 0;
 exports.MIN_API_LEVEL = 15;
 exports.VALID_TARGETS = ['default', 'google_apis', 'aosp_atd', 'google_atd', 'google_apis_playstore', 'android-wear', 'android-wear-cn', 'android-tv', 'google-tv'];
 exports.VALID_ARCHS = ['x86', 'x86_64', 'arm64-v8a'];
 exports.VALID_CHANNELS = ['stable', 'beta', 'dev', 'canary'];
+exports.MIN_PORT = 5554;
+exports.MAX_PORT = 5584;
 exports.PREVIEW_API_LEVELS = ['Tiramisu', 'UpsideDownCake', 'VanillaIceCream'];
 function checkApiLevel(apiLevel) {
     if (exports.PREVIEW_API_LEVELS.some((previewLevel) => apiLevel.startsWith(previewLevel)))
@@ -41,6 +43,15 @@ function checkForceAvdCreation(forceAvdCreation) {
     }
 }
 exports.checkForceAvdCreation = checkForceAvdCreation;
+function checkPort(port) {
+    if (port < exports.MIN_PORT || port > exports.MAX_PORT) {
+        throw new Error(`Emulator port is outside of the supported port range [${exports.MIN_PORT}, ${exports.MAX_PORT}], was ${port}`);
+    }
+    if (port % 2 == 1) {
+        throw new Error(`Emulator port has to be even, was ${port}`);
+    }
+}
+exports.checkPort = checkPort;
 function checkDisableAnimations(disableAnimations) {
     if (!isValidBoolean(disableAnimations)) {
         throw new Error(`Input for input.disable-animations should be either 'true' or 'false'.`);

lib/main.js

@@ -102,6 +102,10 @@ function run() {
             // Emulator boot timeout seconds
             const emulatorBootTimeout = parseInt(core.getInput('emulator-boot-timeout'), 10);
             console.log(`Emulator boot timeout: ${emulatorBootTimeout}`);
+            // Emulator port to use
+            const port = parseInt(core.getInput('emulator-port'), 10);
+            (0, input_validator_1.checkPort)(port);
+            console.log(`emulator port: ${port}`);
             // emulator options
             const emulatorOptions = core.getInput('emulator-options').trim();
             console.log(`emulator options: ${emulatorOptions}`);
@@ -193,7 +197,7 @@ function run() {
                 console.log(`::endgroup::`);
             }
             // launch an emulator
-            yield (0, emulator_manager_1.launchEmulator)(apiLevel, target, arch, profile, cores, ramSize, heapSize, sdcardPathOrSize, diskSize, avdName, forceAvdCreation, emulatorBootTimeout, emulatorOptions, disableAnimations, disableSpellchecker, disableLinuxHardwareAcceleration, enableHardwareKeyboard);
+            yield (0, emulator_manager_1.launchEmulator)(apiLevel, target, arch, profile, cores, ramSize, heapSize, sdcardPathOrSize, diskSize, avdName, forceAvdCreation, emulatorBootTimeout, port, emulatorOptions, disableAnimations, disableSpellchecker, disableLinuxHardwareAcceleration, enableHardwareKeyboard);
             // execute the custom script
             try {
                 // move to custom working directory if set
@@ -203,18 +207,20 @@ function run() {
                 for (const script of scripts) {
                     // use array form to avoid various quote escaping problems
                     // caused by exec(`sh -c "${script}"`)
-                    yield exec.exec('sh', ['-c', script]);
+                    yield exec.exec('sh', ['-c', script], {
+                        env: Object.assign(Object.assign({}, process.env), { EMULATOR_PORT: `${port}`, ANDROID_SERIAL: `emulator-${port}` }),
+                    });
                 }
             }
             catch (error) {
                 core.setFailed(error instanceof Error ? error.message : error);
             }
             // finally kill the emulator
-            yield (0, emulator_manager_1.killEmulator)();
+            yield (0, emulator_manager_1.killEmulator)(port);
         }
         catch (error) {
             // kill the emulator so the action can exit
-            yield (0, emulator_manager_1.killEmulator)();
+            yield (0, emulator_manager_1.killEmulator)(input_validator_1.MIN_PORT);
             core.setFailed(error instanceof Error ? error.message : error);
         }
     });

src/emulator-manager.ts

@@ -17,6 +17,7 @@ export async function launchEmulator(
   avdName: string,
   forceAvdCreation: boolean,
   emulatorBootTimeout: number,
+  port: number,
   emulatorOptions: string,
   disableAnimations: boolean,
   disableSpellChecker: boolean,
@@ -65,7 +66,7 @@ export async function launchEmulator(
     // start emulator
     console.log('Starting emulator.');
 
-    await exec.exec(`sh -c \\"${process.env.ANDROID_HOME}/emulator/emulator -avd "${avdName}" ${emulatorOptions} &"`, [], {
+    await exec.exec(`sh -c \\"${process.env.ANDROID_HOME}/emulator/emulator -port ${port} -avd "${avdName}" ${emulatorOptions} &"`, [], {
       listeners: {
         stderr: (data: Buffer) => {
           if (data.toString().includes('invalid command-line parameter')) {
@@ -76,20 +77,20 @@ export async function launchEmulator(
     });
 
     // wait for emulator to complete booting
-    await waitForDevice(emulatorBootTimeout);
-    await exec.exec(`adb shell input keyevent 82`);
+    await waitForDevice(port, emulatorBootTimeout);
+    await adb(port, `shell input keyevent 82`);
 
     if (disableAnimations) {
       console.log('Disabling animations.');
-      await exec.exec(`adb shell settings put global window_animation_scale 0.0`);
-      await exec.exec(`adb shell settings put global transition_animation_scale 0.0`);
-      await exec.exec(`adb shell settings put global animator_duration_scale 0.0`);
+      await adb(port, `shell settings put global window_animation_scale 0.0`);
+      await adb(port, `shell settings put global transition_animation_scale 0.0`);
+      await adb(port, `shell settings put global animator_duration_scale 0.0`);
     }
     if (disableSpellChecker) {
-      await exec.exec(`adb shell settings put secure spell_checker_enabled 0`);
+      await adb(port, `shell settings put secure spell_checker_enabled 0`);
     }
     if (enableHardwareKeyboard) {
-      await exec.exec(`adb shell settings put secure show_ime_with_hard_keyboard 0`);
+      await adb(port, `shell settings put secure show_ime_with_hard_keyboard 0`);
     }
   } finally {
     console.log(`::endgroup::`);
@@ -99,29 +100,33 @@ export async function launchEmulator(
 /**
  * Kills the running emulator on the default port.
  */
-export async function killEmulator(): Promise<void> {
+export async function killEmulator(port: number): Promise<void> {
   try {
     console.log(`::group::Terminate Emulator`);
-    await exec.exec(`adb -s emulator-5554 emu kill`);
+    await adb(port, `emu kill`);
   } catch (error) {
     console.log(error instanceof Error ? error.message : error);
   } finally {
     console.log(`::endgroup::`);
   }
 }
 
+async function adb(port: number, command: string): Promise<number> {
+  return await exec.exec(`adb -s emulator-${port} ${command}`);
+}
+
 /**
  * Wait for emulator to boot.
  */
-async function waitForDevice(emulatorBootTimeout: number): Promise<void> {
+async function waitForDevice(port: number, emulatorBootTimeout: number): Promise<void> {
   let booted = false;
   let attempts = 0;
   const retryInterval = 2; // retry every 2 seconds
   const maxAttempts = emulatorBootTimeout / 2;
   while (!booted) {
     try {
       let result = '';
-      await exec.exec(`adb shell getprop sys.boot_completed`, [], {
+      await exec.exec(`adb -s emulator-${port} shell getprop sys.boot_completed`, [], {
         listeners: {
           stdout: (data: Buffer) => {
             result += data.toString();

src/input-validator.ts

@@ -2,6 +2,8 @@ export const MIN_API_LEVEL = 15;
 export const VALID_TARGETS: Array<string> = ['default', 'google_apis', 'aosp_atd', 'google_atd', 'google_apis_playstore', 'android-wear', 'android-wear-cn', 'android-tv', 'google-tv'];
 export const VALID_ARCHS: Array<string> = ['x86', 'x86_64', 'arm64-v8a'];
 export const VALID_CHANNELS: Array<string> = ['stable', 'beta', 'dev', 'canary'];
+export const MIN_PORT = 5554;
+export const MAX_PORT = 5584;
 export const PREVIEW_API_LEVELS: Array<string> = ['Tiramisu', 'UpsideDownCake', 'VanillaIceCream'];
 
 export function checkApiLevel(apiLevel: string): void {
@@ -38,6 +40,15 @@ export function checkForceAvdCreation(forceAvdCreation: string): void {
   }
 }
 
+export function checkPort(port: number): void {
+  if (port < MIN_PORT || port > MAX_PORT) {
+    throw new Error(`Emulator port is outside of the supported port range [${MIN_PORT}, ${MAX_PORT}], was ${port}`);
+  }
+  if (port % 2 == 1) {
+    throw new Error(`Emulator port has to be even, was ${port}`);
+  }
+}
+
 export function checkDisableAnimations(disableAnimations: string): void {
   if (!isValidBoolean(disableAnimations)) {
     throw new Error(`Input for input.disable-animations should be either 'true' or 'false'.`);

src/main.ts

@@ -12,6 +12,8 @@ import {
   checkChannel,
   checkEnableHardwareKeyboard,
   checkDiskSize,
+  checkPort,
+  MIN_PORT,
 } from './input-validator';
 import { launchEmulator, killEmulator } from './emulator-manager';
 import * as exec from '@actions/exec';
@@ -20,6 +22,7 @@ import { getChannelId } from './channel-id-mapper';
 import { accessSync, constants } from 'fs';
 
 async function run() {
+  let port: number = MIN_PORT;
   try {
     console.log(`::group::Configure emulator`);
     let linuxSupportKVM = false;
@@ -93,6 +96,11 @@ async function run() {
     const emulatorBootTimeout = parseInt(core.getInput('emulator-boot-timeout'), 10);
     console.log(`Emulator boot timeout: ${emulatorBootTimeout}`);
 
+    // Emulator port to use
+    port = parseInt(core.getInput('emulator-port'), 10);
+    checkPort(port);
+    console.log(`emulator port: ${port}`);
+
     // emulator options
     const emulatorOptions = core.getInput('emulator-options').trim();
     console.log(`emulator options: ${emulatorOptions}`);
@@ -210,6 +218,7 @@ async function run() {
       avdName,
       forceAvdCreation,
       emulatorBootTimeout,
+      port,
       emulatorOptions,
       disableAnimations,
       disableSpellchecker,
@@ -226,17 +235,19 @@ async function run() {
       for (const script of scripts) {
         // use array form to avoid various quote escaping problems
         // caused by exec(`sh -c "${script}"`)
-        await exec.exec('sh', ['-c', script]);
+        await exec.exec('sh', ['-c', script], {
+          env: { ...process.env, EMULATOR_PORT: `${port}`, ANDROID_SERIAL: `emulator-${port}` },
+        });
       }
     } catch (error) {
       core.setFailed(error instanceof Error ? error.message : (error as string));
     }
 
     // finally kill the emulator
-    await killEmulator();
+    await killEmulator(port);
   } catch (error) {
     // kill the emulator so the action can exit
-    await killEmulator();
+    await killEmulator(port);
     core.setFailed(error instanceof Error ? error.message : (error as string));
   }
 }