riot-web/scripts/copy-res.js

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#!/usr/bin/env node
const loaderUtils = require("loader-utils");
// copies the resources into the webapp directory.
//
// Languages are listed manually so we can choose when to include
// a translation in the app (because having a translation with only
// 3 strings translated is just frustrating)
// This could readily be automated, but it's nice to explicitly
// control when new languages are available.
const INCLUDE_LANGS = [
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{ value: "bg", label: "Български" },
{ value: "ca", label: "Català" },
{ value: "cs", label: "čeština" },
{ value: "da", label: "Dansk" },
{ value: "de_DE", label: "Deutsch" },
{ value: "el", label: "Ελληνικά" },
{ value: "en_EN", label: "English" },
{ value: "en_US", label: "English (US)" },
{ value: "eo", label: "Esperanto" },
{ value: "es", label: "Español" },
{ value: "et", label: "Eesti" },
{ value: "eu", label: "Euskara" },
{ value: "fi", label: "Suomi" },
{ value: "fr", label: "Français" },
{ value: "gl", label: "Galego" },
{ value: "he", label: "עברית" },
{ value: "hi", label: "हिन्दी" },
{ value: "hu", label: "Magyar" },
{ value: "id", label: "Bahasa Indonesia" },
{ value: "is", label: "íslenska" },
{ value: "it", label: "Italiano" },
{ value: "ja", label: "日本語" },
{ value: "kab", label: "Taqbaylit" },
{ value: "ko", label: "한국어" },
{ value: "lo", label: "ລາວ" },
{ value: "lt", label: "Lietuvių" },
{ value: "lv", label: "Latviešu" },
{ value: "nb_NO", label: "Norwegian Bokmål" },
{ value: "nl", label: "Nederlands" },
{ value: "nn", label: "Norsk Nynorsk" },
{ value: "pl", label: "Polski" },
{ value: "pt", label: "Português" },
{ value: "pt_BR", label: "Português do Brasil" },
{ value: "ru", label: "Русский" },
{ value: "sk", label: "Slovenčina" },
{ value: "sq", label: "Shqip" },
{ value: "sr", label: "српски" },
{ value: "sv", label: "Svenska" },
{ value: "te", label: "తెలుగు" },
{ value: "th", label: "ไทย" },
{ value: "tr", label: "Türkçe" },
{ value: "uk", label: "українська мова" },
{ value: "vi", label: "Tiếng Việt" },
{ value: "vls", label: "West-Vlaams" },
{ value: "zh_Hans", label: "简体中文" }, // simplified chinese
{ value: "zh_Hant", label: "繁體中文" }, // traditional chinese
];
// cpx includes globbed parts of the filename in the destination, but excludes
// common parents. Hence, "res/{a,b}/**": the output will be "dest/a/..." and
// "dest/b/...".
const COPY_LIST = [
["res/apple-app-site-association", "webapp"],
["res/manifest.json", "webapp"],
["res/sw.js", "webapp"],
["res/welcome.html", "webapp"],
["res/welcome/**", "webapp/welcome"],
["res/themes/**", "webapp/themes"],
["res/vector-icons/**", "webapp/vector-icons"],
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["res/decoder-ring/**", "webapp/decoder-ring"],
["node_modules/matrix-react-sdk/res/media/**", "webapp/media"],
["node_modules/@matrix-org/olm/olm_legacy.js", "webapp", { directwatch: 1 }],
["./config.json", "webapp", { directwatch: 1 }],
["contribute.json", "webapp"],
];
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const parseArgs = require("minimist");
const Cpx = require("cpx");
const chokidar = require("chokidar");
const fs = require("fs");
const rimraf = require("rimraf");
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const argv = parseArgs(process.argv.slice(2), {});
const watch = argv.w;
const verbose = argv.v;
function errCheck(err) {
if (err) {
console.error(err.message);
process.exit(1);
}
}
// Check if webapp exists
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if (!fs.existsSync("webapp")) {
fs.mkdirSync("webapp");
}
// Check if i18n exists
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if (!fs.existsSync("webapp/i18n/")) {
fs.mkdirSync("webapp/i18n/");
}
function next(i, err) {
errCheck(err);
if (i >= COPY_LIST.length) {
return;
}
const ent = COPY_LIST[i];
const source = ent[0];
const dest = ent[1];
const opts = ent[2] || {};
let cpx = undefined;
if (!opts.lang) {
cpx = new Cpx.Cpx(source, dest);
}
if (verbose && cpx) {
cpx.on("copy", (event) => {
console.log(`Copied: ${event.srcPath} --> ${event.dstPath}`);
});
cpx.on("remove", (event) => {
console.log(`Removed: ${event.path}`);
});
}
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const cb = (err) => {
next(i + 1, err);
};
if (watch) {
if (opts.directwatch) {
// cpx -w creates a watcher for the parent of any files specified,
// which in the case of config.json is '.', which inevitably takes
// ages to crawl. So we create our own watcher on the files
// instead.
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const copy = () => {
cpx.copy(errCheck);
};
chokidar.watch(source).on("add", copy).on("change", copy).on("ready", cb).on("error", errCheck);
} else {
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cpx.on("watch-ready", cb);
cpx.on("watch-error", cb);
cpx.watch();
}
} else {
cpx.copy(cb);
}
}
function genLangFile(lang, dest) {
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const reactSdkFile = "node_modules/matrix-react-sdk/src/i18n/strings/" + lang + ".json";
const riotWebFile = "src/i18n/strings/" + lang + ".json";
let translations = {};
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[reactSdkFile, riotWebFile].forEach(function (f) {
if (fs.existsSync(f)) {
try {
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Object.assign(translations, JSON.parse(fs.readFileSync(f).toString()));
} catch (e) {
console.error("Failed: " + f, e);
throw e;
}
}
});
translations = weblateToCounterpart(translations);
const json = JSON.stringify(translations, null, 4);
const jsonBuffer = Buffer.from(json);
const digest = loaderUtils.getHashDigest(jsonBuffer, null, null, 7);
const filename = `${lang}.${digest}.json`;
fs.writeFileSync(dest + filename, json);
if (verbose) {
console.log("Generated language file: " + filename);
}
return filename;
}
function genLangList(langFileMap) {
const languages = {};
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INCLUDE_LANGS.forEach(function (lang) {
const normalizedLanguage = lang.value.toLowerCase().replace("_", "-");
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const languageParts = normalizedLanguage.split("-");
if (languageParts.length == 2 && languageParts[0] == languageParts[1]) {
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languages[languageParts[0]] = { fileName: langFileMap[lang.value], label: lang.label };
} else {
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languages[normalizedLanguage] = { fileName: langFileMap[lang.value], label: lang.label };
}
});
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fs.writeFile("webapp/i18n/languages.json", JSON.stringify(languages, null, 4), function (err) {
if (err) {
console.error("Copy Error occured: " + err);
throw new Error("Failed to generate languages.json");
}
});
if (verbose) {
console.log("Generated languages.json");
}
}
/**
* Convert translation key from weblate format
* (which only supports a single level) to counterpart
* which requires object values for 'count' translations.
*
* eg.
* "there are %(count)s badgers|one": "a badger",
* "there are %(count)s badgers|other": "%(count)s badgers"
* becomes
* "there are %(count)s badgers": {
* "one": "a badger",
* "other": "%(count)s badgers"
* }
*/
function weblateToCounterpart(inTrs) {
const outTrs = {};
for (const key of Object.keys(inTrs)) {
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const keyParts = key.split("|", 2);
if (keyParts.length === 2) {
let obj = outTrs[keyParts[0]];
if (obj === undefined) {
obj = outTrs[keyParts[0]] = {};
} else if (typeof obj === "string") {
// This is a transitional edge case if a string went from singular to pluralised and both still remain
// in the translation json file. Use the singular translation as `other` and merge pluralisation atop.
obj = outTrs[keyParts[0]] = {
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other: inTrs[key],
};
console.warn("Found entry in i18n file in both singular and pluralised form", keyParts[0]);
}
obj[keyParts[1]] = inTrs[key];
} else {
outTrs[key] = inTrs[key];
}
}
return outTrs;
}
/**
watch the input files for a given language,
regenerate the file, adding its content-hashed filename to langFileMap
and regenerating languages.json with the new filename
*/
function watchLanguage(lang, dest, langFileMap) {
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const reactSdkFile = "node_modules/matrix-react-sdk/src/i18n/strings/" + lang + ".json";
const riotWebFile = "src/i18n/strings/" + lang + ".json";
// XXX: Use a debounce because for some reason if we read the language
// file immediately after the FS event is received, the file contents
// appears empty. Possibly https://github.com/nodejs/node/issues/6112
let makeLangDebouncer;
const makeLang = () => {
if (makeLangDebouncer) {
clearTimeout(makeLangDebouncer);
}
makeLangDebouncer = setTimeout(() => {
const filename = genLangFile(lang, dest);
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langFileMap[lang] = filename;
genLangList(langFileMap);
}, 500);
};
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[reactSdkFile, riotWebFile].forEach(function (f) {
chokidar.watch(f).on("add", makeLang).on("change", makeLang).on("error", errCheck);
});
}
// language resources
const I18N_DEST = "webapp/i18n/";
const I18N_FILENAME_MAP = INCLUDE_LANGS.reduce((m, l) => {
const filename = genLangFile(l.value, I18N_DEST);
m[l.value] = filename;
return m;
}, {});
genLangList(I18N_FILENAME_MAP);
if (watch) {
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INCLUDE_LANGS.forEach((l) => watchLanguage(l.value, I18N_DEST, I18N_FILENAME_MAP));
}
// non-language resources
next(0);