lib/ParamedicKill.js

#!/usr/bin/env node

/**
    Licensed to the Apache Software Foundation (ASF) under one
    or more contributor license agreements.  See the NOTICE file
    distributed with this work for additional information
    regarding copyright ownership.  The ASF licenses this file
    to you 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.
*/

'use strict';

var shelljs = require('shelljs');
var util    = require('./utils').utilities;
var logger  = require('./utils').logger;

function ParamedicKill(platform) {
    this.platform = platform;
}

ParamedicKill.prototype.kill = function () {
    // shell config
    shelljs.config.fatal  = false;
    shelljs.config.silent = false;

    // get platform tasks
    var platformTasks = this.tasksOnPlatform(this.platform);

    if (platformTasks.length < 1) {
        console.warn('no known tasks to kill');
        return;
    }

    // kill them
    this.killTasks(platformTasks);

    if (this.platform === util.ANDROID) {
        this.killAdbServer();
    }

};

ParamedicKill.prototype.tasksOnPlatform = function (platformName) {
    var tasks = [];
    switch (platformName) {
    case util.WINDOWS:
        tasks = ['WWAHost.exe', 'Xde.exe'];
        break;
    case util.IOS:
        tasks = ['Simulator', 'iOS Simulator'];
        break;
    case util.ANDROID:
        if (util.isWindows()) {
            tasks = ['emulator-arm.exe'];
        } else {
            tasks = ['emulator64-x86', 'emulator64-arm'];
        }
        break;
    }
    return tasks;
};

ParamedicKill.prototype.killTasks = function (taskNames) {
    if (!taskNames || taskNames.length < 1) {
        return;
    }

    var command = this.getKillCommand(taskNames);

    logger.info('running the following command:');
    logger.info('    ' + command);

    var killTasksResult = shelljs.exec(command, {silent: false, async: false });
    if (killTasksResult.code !== 0) {
        console.warn('WARNING: kill command returned ' + killTasksResult.code);
    }
};

ParamedicKill.prototype.getKillCommand = function (taskNames) {
    var cli;
    var args;

    if (util.isWindows()) {
        cli  = 'taskkill /F';
        args = taskNames.map(function (name) { return '/IM "' + name + '"'; });
    } else {
        cli  = 'killall -9';
        args = taskNames.map(function (name) { return '"' + name + '"'; });
    }

    return cli + ' ' + args.join(' ');
};

ParamedicKill.prototype.killAdbServer = function () {
    logger.info('Killing adb server');
    var killServerCommand = 'adb kill-server';

    logger.info('Running the following command:');
    logger.info('    ' + killServerCommand);

    var killServerResult = shelljs.exec(killServerCommand, {silent: false, async: false});
    if (killServerResult.code !== 0) {
        logger.error('Failed killing adb server with code: ' + killServerResult.code);
    }
    logger.info('Finished killing adb server');
};

module.exports = ParamedicKill;