A grunt task to wait for a given amount of time

grunt-waitfor.js

"use strict";

function formatDuration(duration) {
    var resultType = 'ms';
    var resultVal = duration;
    if (duration > 999 && duration < 60000) {
        resultType = 'sec';
        resultVal = duration / 1000;
    } else if (duration > 59999 && duration < 3600000) {
        resultType = 'min';
        resultVal = (duration / 1000) / 60;
    } else if (duration > 3599999) {
        resultType = 'hr';
        resultVal = ((duration / 1000) / 60) / 60;
    }
    return {
        type: resultType,
        val: resultVal
    };
}

module.exports = function (grunt) {
    
    grunt.registerTask("wait_for", function (waitDuration) {
        var done = this.async();
        var rand = Math.floor(Math.random() * (10000 - 1 + 1)) + 1;
        var formattedDur = formatDuration(waitDuration);

        setTimeout(function () {
            grunt.log.writeln('[wait#' + rand + '] complete!');
            done();
        }, waitDuration);

        grunt.log.writeln('[wait#' + rand + '] waiting for ' + formattedDur.val + ' ' + formattedDur.type + '... ');
    });
    
};