Support running on linux without hardware accleration.

lib/emulator-manager.js

@@ -33,6 +33,10 @@ function launchEmulator(apiLevel, target, arch, profile, emulatorOptions, disabl
         }
         // start emulator
         console.log('Starting emulator.');
+        // turn off hardware acceleration on Linux
+        if (process.platform === 'linux') {
+            emulatorOptions += '-accel off';
+        }
         yield exec.exec(`sh -c \\"${process.env.ANDROID_HOME}/emulator/emulator -avd test ${emulatorOptions} &"`, [], {
             listeners: {
                 stderr: (data) => {

lib/main.js

@@ -24,9 +24,14 @@ const script_parser_1 = require("./script-parser");
 function run() {
     return __awaiter(this, void 0, void 0, function* () {
         try {
-            // only support running on macOS
+            // only support running on macOS or Linux
             if (process.platform !== 'darwin') {
-                throw new Error('This action is expected to be run within a macOS virtual machine to enable hardware acceleration.');
+                if (process.platform === 'linux') {
+                    console.warn(`You're running a Linux VM where hardware acceleration is not available. Please consider using a macOS VM instead to take advantage of native hardware acceleration support provided by HAXM.`);
+                }
+                else {
+                    throw new Error('Unsupported virtual machine: please use either macos or ubuntu VM.');
+                }
             }
             // API level of the platform and system image
             const apiLevelInput = core.getInput('api-level', { required: true });
@@ -74,13 +79,8 @@ function run() {
             }));
             // install SDK
             yield sdk_installer_1.installAndroidSdk(apiLevel, target, arch, emulatorBuild);
-            try {
-                // launch an emulator
-                yield emulator_manager_1.launchEmulator(apiLevel, target, arch, profile, emulatorOptions, disableAnimations);
-            }
-            catch (error) {
-                core.setFailed(error.message);
-            }
+            // launch an emulator
+            yield emulator_manager_1.launchEmulator(apiLevel, target, arch, profile, emulatorOptions, disableAnimations);
             // execute the custom script
             try {
                 // move to custom working directory if set

lib/sdk-installer.js

@@ -18,28 +18,32 @@ Object.defineProperty(exports, "__esModule", { value: true });
 const core = __importStar(require("@actions/core"));
 const exec = __importStar(require("@actions/exec"));
 const BUILD_TOOLS_VERSION = '29.0.3';
-const CMDLINE_TOOLS_URL = 'https://dl.google.com/android/repository/commandlinetools-linux-6200805_latest.zip';
+const CMDLINE_TOOLS_URL_MAC = 'https://dl.google.com/android/repository/commandlinetools-linux-6200805_latest.zip';
+const CMDLINE_TOOLS_URL_LINUX = 'https://dl.google.com/android/repository/commandlinetools-linux-6200805_latest.zip';
 /**
  * Installs & updates the Android SDK for the macOS platform, including SDK platform for the chosen API level, latest build tools, platform tools, Android Emulator,
  * and the system image for the chosen API level, CPU arch, and target.
  */
 function installAndroidSdk(apiLevel, target, arch, emulatorBuild) {
     return __awaiter(this, void 0, void 0, function* () {
+        const isOnMac = process.platform === 'darwin';
         console.log('Installing new cmdline-tools.');
-        yield exec.exec(`mkdir ${process.env.ANDROID_HOME}/cmdline-tools`);
-        yield exec.exec(`curl -fo commandlinetools.zip ${CMDLINE_TOOLS_URL}`);
-        yield exec.exec(`unzip -q commandlinetools.zip -d ${process.env.ANDROID_HOME}/cmdline-tools`);
-        yield exec.exec(`rm -f commandlinetools.zip`);
+        const sdkUrl = isOnMac ? CMDLINE_TOOLS_URL_MAC : CMDLINE_TOOLS_URL_LINUX;
+        yield exec.exec(`sudo mkdir ${process.env.ANDROID_HOME}/cmdline-tools`);
+        yield exec.exec(`curl -fo commandlinetools.zip ${sdkUrl}`);
+        yield exec.exec(`sudo unzip -q commandlinetools.zip -d ${process.env.ANDROID_HOME}/cmdline-tools`);
+        yield exec.exec(`sudo rm -f commandlinetools.zip`);
         // add paths for commandline-tools and platform-tools
         core.addPath(`${process.env.ANDROID_HOME}/cmdline-tools/tools:${process.env.ANDROID_HOME}/cmdline-tools/tools/bin:${process.env.ANDROID_HOME}/platform-tools`);
+        yield exec.exec(`sh -c \\"sudo chmod -R 777 ${process.env.ANDROID_HOME}"`);
         console.log('Installing latest build tools, platform tools, and platform.');
         yield exec.exec(`sh -c \\"sdkmanager --install 'build-tools;${BUILD_TOOLS_VERSION}' platform-tools 'platforms;android-${apiLevel}' > /dev/null"`);
         if (emulatorBuild) {
             console.log(`Installing emulator build ${emulatorBuild}.`);
-            yield exec.exec(`curl -fo emulator.zip https://dl.google.com/android/repository/emulator-darwin-${emulatorBuild}.zip`);
-            yield exec.exec(`rm -rf ${process.env.ANDROID_HOME}/emulator`);
-            yield exec.exec(`unzip -q emulator.zip -d ${process.env.ANDROID_HOME}`);
-            yield exec.exec(`rm -f emulator.zip`);
+            yield exec.exec(`curl -fo emulator.zip https://dl.google.com/android/repository/emulator-${isOnMac ? 'darwin' : 'linux'}-${emulatorBuild}.zip`);
+            yield exec.exec(`sudo rm -rf ${process.env.ANDROID_HOME}/emulator`);
+            yield exec.exec(`sudo unzip -q emulator.zip -d ${process.env.ANDROID_HOME}`);
+            yield exec.exec(`sudo rm -f emulator.zip`);
         }
         else {
             console.log('Installing latest emulator.');