module.exports.start = function()

in lib/emulator.js [197:237]

• 29 lines of code
• 4 McCabe index (conditional complexity)

module.exports.start = function (emulatorId, boot_timeout) {
    const self = this;

    return Promise.resolve().then(function () {
        if (!emulatorId) {
            throw new CordovaError('No emulator ID given');
        }

        return self.get_available_port().then(function (port) {
            // Figure out the directory the emulator binary runs in, and set the cwd to that directory.
            // Workaround for https://code.google.com/p/android/issues/detail?id=235461
            const emulator_dir = path.dirname(which.sync('emulator'));
            const args = ['-avd', emulatorId, '-port', port];
            // Don't wait for it to finish, since the emulator will probably keep running for a long time.
            execa('emulator', args, { stdio: 'inherit', detached: true, cwd: emulator_dir })
                .unref();

            // wait for emulator to start
            events.emit('log', 'Waiting for emulator to start...');
            return self.wait_for_emulator(port);
        });
    }).then(function (emulatorId) {
        if (!emulatorId) { return Promise.reject(new CordovaError('Failed to start emulator')); }

        // wait for emulator to boot up
        process.stdout.write('Waiting for emulator to boot (this may take a while)...');
        return self.wait_for_boot(emulatorId, boot_timeout).then(function (success) {
            if (success) {
                events.emit('log', 'BOOT COMPLETE');
                // unlock screen
                return Adb.shell(emulatorId, 'input keyevent 82').then(function () {
                    // return the new emulator id for the started emulators
                    return emulatorId;
                });
            } else {
                // We timed out waiting for the boot to happen
                return null;
            }
        });
    });
};