Grunt tasks to add and build crosswalk for cordova project using grunt shell

gistfile1.txt

var crosswalk = {
    folder: {
        arm: 'tools/crosswalk-cordova-7.36.154.13-arm',
        x86: 'tools/crosswalk-cordova-7.36.154.13-x86'
    }
};

// https://crosswalk-project.org/#documentation/cordova/migrate_an_application
var addCrosswalk = {
    command: [
        'rm -Rf platforms/android/CordovaLib/*',
        'cp -a ' + crosswalk.folder.arm + '/framework/* platforms/android/CordovaLib/',
        'cp -a ' + crosswalk.folder.arm + '/VERSION platforms/android/',
        // TODO add ACCESS_WIFI_STATE permission to AndroidManifest
        'cp -a ' + crosswalk.folder.x86 + '/framework/xwalk_core_library/libs/* ' +
            'platforms/android/CordovaLib/xwalk_core_library/libs/'
    ].join('&&')
};

var buildCrosswalk = {
    command: [
        'export ANDROID_HOME=$(dirname $(dirname $(which android)))',
        'cd platforms/android/CordovaLib/',
        'android update project --subprojects --path . --target "android-19"',
        'ant debug',
        // remove files generated by cordova during previous build
        'cd ..',
        'rm -Rf ant-gen',
        'rm -Rf ant-build',
        // build the apk
        'cd ../..',
        'cordova build android'
    ].join('&&')
};