grunt.task.registerTask('incrementVersion', function () {
    var controllerFile = "controller.php";
 
    var incrementPackageVersionNumber = function (s) {
        var re = /\$pkgVersion[\s*]=[\s*][\'|\"](.*)[\'|\"]/g
 
        var m = re.exec(s);
 
        if (m.length) {
            var oldVersionNumber = m[1];
            var newVersionNumber = '';
 
            var temp = oldVersionNumber.split(".");
 
            var major = 0;
            var minor = 0;
            var rev = 0;
 
            if (temp.length === 3) {
                major = parseInt(temp[0]);
                minor = parseInt(temp[1]);
                rev = parseInt(temp[2]);
 
            } else if (temp.length === 2) {
                major = parseInt(temp[0]);
                minor = parseInt(temp[1]);
 
            } else if (temp.length === 1) {
                major = parseInt(temp[0]);
            }
 
            if (minor > 9) {
                major += 1;
                minor = 0;
                rev = 0;
 
            } else if (rev >= 9) {
 
                if (minor + 1 > 9) {
                    major += 1;
                    minor = 0;
                    rev = 0;
                } else {
                    minor += 1;
                    rev = 0;
                }
 
            } else {
                rev += 1;
            }
 
            newVersionNumber = major + "." + minor + "." + rev;
 
            s = s.replace(oldVersionNumber, newVersionNumber);
        }
 
        return s;
    };
 
    var fileContent = grunt.file.read(controllerFile);
 
    fileContent = incrementPackageVersionNumber(fileContent);
 
    grunt.file.write(controllerFile, fileContent);
});