gulpfile.js

/*!
 * ioBroker gulpfile
 * Date: 2019-01-28
 */
"use strict";

const gulp = require("gulp");
const fs = require("fs");
const pkg = require("./package.json");
const iopackage = require("./io-package.json");
const version = (pkg && pkg.version) ? pkg.version : iopackage.common.version;
const fileName = "words.js";
const EMPTY = "";
const translate = require("./lib/tools").translateText;
const languages = {
    en: {},
    de: {},
    ru: {},
    pt: {},
    nl: {},
    fr: {},
    it: {},
    es: {},
    pl: {},
    "zh-cn": {}
};

function lang2data(lang) {
    let str ="{\n";
    let count = 0;
    for (const w in lang) {
        if (lang.hasOwnProperty(w)) {
            count++;
            const key = '    "' + w.replace(/"/g, '\\"') + '": ';
            str += key + '"' + lang[w].replace(/"/g, '\\"') + '",\n';
        }
    }
    if (!count) {
        return "{\n}";
    } else {
        return str.substring(0, str.length - 2) + "\n}";
    }
}

function readWordJs(src) {
    try {
        let words;
        if (fs.existsSync(src + "js/" + fileName)) {
            words = fs.readFileSync(src + "js/" + fileName).toString();
        } else {
            words = fs.readFileSync(src + fileName).toString();
        }
        words = words.substring(words.indexOf("{"), words.length);
        words = words.substring(0, words.lastIndexOf(";"));

        const resultFunc = new Function("return " + words + ";");

        return resultFunc();
    } catch (e) {
        return null;
    }
}

function padRight(text, totalLength) {
    return text + (text.length < totalLength ? new Array(totalLength - text.length).join(" ") : "");
}

function writeWordJs(data, src) {
    let text = "";
    text += "/*global systemDictionary:true */\n";
    text += "'use strict';\n\n";
    text += "systemDictionary = {\n";
    for (const word in data) {
        if (data.hasOwnProperty(word)) {
            text += "    " + padRight('"' + word.replace(/"/g, '\\"') + '": {', 50);
            let line = "";
            for (const lang in data[word]) {
                if (data[word].hasOwnProperty(lang)) {
                    line += '"' + lang + '": "' + padRight(data[word][lang].replace(/"/g, '\\"') + '",', 50) + " ";
                }
            }
            if (line) {
                line = line.trim();
                line = line.substring(0, line.length - 1);
            }
            text += line + "},\n";
        }
    }
    text += "};";
    if (fs.existsSync(src + "js/" + fileName)) {
        fs.writeFileSync(src + "js/" + fileName, text);
    } else {
        fs.writeFileSync(src + "" + fileName, text);
    }
}

function words2languages(src) {
    const langs = Object.assign({}, languages);
    const data = readWordJs(src);
    if (data) {
        for (const word in data) {
            if (data.hasOwnProperty(word)) {
                for (const lang in data[word]) {
                    if (data[word].hasOwnProperty(lang)) {
                        langs[lang][word] = data[word][lang];
                        //  pre-fill all other languages
                        for (const j in langs) {
                            if (langs.hasOwnProperty(j)) {
                                langs[j][word] = langs[j][word] || EMPTY;
                            }
                        }
                    }
                }
            }
        }
        if (!fs.existsSync(src + "i18n/")) {
            fs.mkdirSync(src + "i18n/");
        }
        for (const l in langs) {
            if (!langs.hasOwnProperty(l))
                continue;
            const keys = Object.keys(langs[l]);
            keys.sort();
            const obj = {};
            for (let k = 0; k < keys.length; k++) {
                obj[keys[k]] = langs[l][keys[k]];
            }
            if (!fs.existsSync(src + "i18n/" + l)) {
                fs.mkdirSync(src + "i18n/" + l);
            }

            fs.writeFileSync(src + "i18n/" + l + "/translations.json", lang2data(obj));
        }
    } else {
        console.error("Cannot read or parse " + fileName);
    }
}

function languages2words(src) {
    const dirs = fs.readdirSync(src + "i18n/");
    const langs = {};
    const bigOne = {};
    const order = Object.keys(languages);
    dirs.sort(function (a, b) {
        const posA = order.indexOf(a);
        const posB = order.indexOf(b);
        if (posA === -1 && posB === -1) {
            if (a > b)
                return 1;
            if (a < b)
                return -1;
            return 0;
        } else if (posA === -1) {
            return -1;
        } else if (posB === -1) {
            return 1;
        } else {
            if (posA > posB)
                return 1;
            if (posA < posB)
                return -1;
            return 0;
        }
    });
    for (const lang of dirs) {
        if (lang === "flat.txt")
            continue;
        langs[lang] = fs.readFileSync(src + "i18n/" + lang + "/translations.json").toString();
        langs[lang] = JSON.parse(langs[lang]);
        const words = langs[lang];
        for (const word in words) {
            if (words.hasOwnProperty(word)) {
                bigOne[word] = bigOne[word] || {};
                if (words[word] !== EMPTY) {
                    bigOne[word][lang] = words[word];
                }
            }
        }
    }
    // read actual words.js
    const aWords = readWordJs();

    const temporaryIgnore = ["flat.txt"];
    if (aWords) {
        // Merge words together
        for (const w in aWords) {
            if (aWords.hasOwnProperty(w)) {
                if (!bigOne[w]) {
                    console.warn("Take from actual words.js: " + w);
                    bigOne[w] = aWords[w];
                }
                dirs.forEach(function (lang) {
                    if (temporaryIgnore.indexOf(lang) !== -1)
                        return;
                    if (!bigOne[w][lang]) {
                        console.warn('Missing "' + lang + '": ' + w);
                    }
                });
            }
        }

    }

    writeWordJs(bigOne, src);
}

async function translateNotExisting(obj, baseText, yandex) {
    let t = obj["en"];
    if (!t) {
        t = baseText;
    }

    if (t) {
        for (let l in languages) {
            if (!obj[l]) {
                const time = new Date().getTime();
                obj[l] = await translate(t, l, yandex);
                console.log("en -> " + l + " " + (new Date().getTime() - time) + " ms");
            }
        }
    }
}

//TASKS

gulp.task("adminWords2languages", function (done) {
    words2languages("./admin/");
    done();
});

gulp.task("adminLanguages2words", function (done) {
    languages2words("./admin/");
    done();
});

gulp.task("updatePackages", function (done) {
    iopackage.common.version = pkg.version;
    iopackage.common.news = iopackage.common.news || {};
    if (!iopackage.common.news[pkg.version]) {
        const news = iopackage.common.news;
        const newNews = {};

        newNews[pkg.version] = {
            en: "news",
            de: "neues",
            ru: "новое",
            pt: "novidades",
            nl: "nieuws",
            fr: "nouvelles",
            it: "notizie",
            es: "noticias",
            pl: "nowości",
            "zh-cn": "新"
        };
        iopackage.common.news = Object.assign(newNews, news);
    }
    fs.writeFileSync("io-package.json", JSON.stringify(iopackage, null, 4));
    done();
});

gulp.task("updateReadme", function (done) {
    const readme = fs.readFileSync("README.md").toString();
    const pos = readme.indexOf("## Changelog\n");
    if (pos !== -1) {
        const readmeStart = readme.substring(0, pos + "## Changelog\n".length);
        const readmeEnd = readme.substring(pos + "## Changelog\n".length);

        if (readme.indexOf(version) === -1) {
            const timestamp = new Date();
            const date = timestamp.getFullYear() + "-" +
                    ("0" + (timestamp.getMonth() + 1).toString(10)).slice(-2) + "-" +
                    ("0" + (timestamp.getDate()).toString(10)).slice(-2);

            let news = "";
            if (iopackage.common.news && iopackage.common.news[pkg.version]) {
                news += "* " + iopackage.common.news[pkg.version].en;
            }

            fs.writeFileSync("README.md", readmeStart + "### " + version + " (" + date + ")\n" + (news ? news + "\n\n" : "\n") + readmeEnd);
        }
    }
    done();
});

gulp.task("translate", async function (done) {

    let yandex;
    const i = process.argv.indexOf("--yandex");
    if (i > -1) {
        yandex = process.argv[i + 1];
    }

    if (iopackage && iopackage.common) {
        if (iopackage.common.news) {
            console.log("Translate News");
            for (let k in iopackage.common.news) {
                console.log("News: " + k);
                let nw = iopackage.common.news[k];
                await translateNotExisting(nw, null, yandex);
            }
        }
        if (iopackage.common.titleLang) {
            console.log("Translate Title");
            await translateNotExisting(iopackage.common.titleLang, iopackage.common.title, yandex);
        }
        if (iopackage.common.desc) {
            console.log("Translate Description");
            await translateNotExisting(iopackage.common.desc, null, yandex);
        }

        if (fs.existsSync("./admin/i18n/en/translations.json")) {
            let enTranslations = require("./admin/i18n/en/translations.json");
            for (let l in languages) {
                console.log("Translate Text: " + l);
                let existing = {};
                if (fs.existsSync("./admin/i18n/" + l + "/translations.json")) {
                    existing = require("./admin/i18n/" + l + "/translations.json");
                }
                for (let t in enTranslations) {
                    if (!existing[t]) {
                        existing[t] = await translate(enTranslations[t], l, yandex);
                    }
                }
                if (!fs.existsSync("./admin/i18n/" + l + "/")) {
                    fs.mkdirSync("./admin/i18n/" + l + "/");
                }
                fs.writeFileSync("./admin/i18n/" + l + "/translations.json", JSON.stringify(existing, null, 4));
            }
        }

    }
    fs.writeFileSync("io-package.json", JSON.stringify(iopackage, null, 4));
});

gulp.task("translateAndUpdateWordsJS", gulp.series("translate", "adminLanguages2words", "adminWords2languages"));

gulp.task("default", gulp.series("updatePackages", "updateReadme"));