deploy-helper.js

let getCompilationQuarterValue = function (d, strict, includePrevious) {
    d = d || new Date();
    let quarterIndex = (Math.ceil((d.getMonth() + 1) / 3)),
        nextQuarter = (quarterIndex <= 3) ? d.getFullYear() + "-0" + (quarterIndex + 1) : (d.getFullYear() + 1) + "-01";

    let ret = `+(${includePrevious ? getPreviousQuarter() + "|" : ''}${d.getFullYear()}-0${quarterIndex}|${nextQuarter})`;
    if (!strict) {
        ret = `${ret}*`
    }
    return ret
};

let getCurrentQuarter = function () {
    let d = new Date();
    let quarterIndex = (Math.ceil((d.getMonth() + 1) / 3));

    return `${d.getFullYear()}-0${quarterIndex}`;
};

let getCurrentQuarterWithOffset = function (offset) {
    let d = new Date();
    d.setDate(d.getDate() + offset);
    let quarterIndex = (Math.ceil((d.getMonth() + 1) / 3));

    return `${d.getFullYear()}-0${quarterIndex}`;
};

let getNextQuarter = function () {
    let d = new Date();
    let quarterIndex = (Math.ceil((d.getMonth() + 1) / 3));
    let nextQuarter = (quarterIndex <= 3) ? d.getFullYear() + "-0" + (quarterIndex + 1) : (d.getFullYear() + 1) + "-01";

    return `${nextQuarter}`;
};

let getPreviousQuarter = function () {
    let d = new Date();
    let quarterIndex = (Math.ceil((d.getMonth() + 1) / 3));
    let prevQuarter = (quarterIndex === 1) ? (d.getFullYear() - 1) + "-04" : (d.getFullYear()) + `-0${(quarterIndex - 1)}`;

    return `${prevQuarter}`;
};

let getInfoFromPath = function (path) {
    let infoRegExp = /src\/([a-z]{2,3})?\/?([a-z0-9-]{6,})?\/?([0-9a-z\-]{2,})?\/?([a-z0-9-]{2,}(\.md)?)?\/?/g,
        matches = infoRegExp.exec(path),
        info = {};

    info.language = matches[1] || null;
    info.quarterly = matches[2] || null;
    info.lesson = matches[3] || null;
    info.day = (matches[4]) ? matches[4].replace(".md", "") : null;

    return info;
};

module.exports = { getCompilationQuarterValue, getCurrentQuarter, getNextQuarter, getPreviousQuarter, getInfoFromPath, getCurrentQuarterWithOffset }