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 = [
{'value': 'bg', 'label': 'Български'},
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{'value': 'ca', 'label': 'Català'},
{'value': 'cs', 'label': 'čeština'},
{'value': 'da', 'label': 'Dansk'},
{'value': 'de_DE', 'label': 'Deutsch'},
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{'value': 'el', 'label': 'Ελληνικά'},
{'value': 'en_EN', 'label': 'English'},
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{'value': 'en_US', 'label': 'English (US)'},
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{'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'},
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{'value': 'he', 'label': 'עברית'},
{'value': 'hi', 'label': 'हिन्दी'},
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{'value': 'hu', 'label': 'Magyar'},
{'value': 'is', 'label': 'íslenska'},
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{'value': 'it', 'label': 'Italiano'},
{'value': 'ja', 'label': '日本語'},
{'value': 'jbo', 'label': 'banjubu\'o'},
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{'value': 'kab', 'label': 'Taqbaylit'},
{'value': 'ko', 'label': '한국어'},
{'value': 'lt', 'label': 'Lietuvių'},
{'value': 'lv', 'label': 'Latviešu'},
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{'value': 'nb_NO', 'label': 'Norwegian Bokmål'},
{'value': 'nl', 'label': 'Nederlands'},
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{'value': 'nn', 'label': 'Norsk Nynorsk'},
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{'value': 'pl', 'label': 'Polski'},
{'value': 'pt', 'label': 'Português'},
{'value': 'pt_BR', 'label': 'Português do Brasil'},
{'value': 'ru', 'label': 'Русский'},
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{'value': 'sk', 'label': 'Slovenčina'},
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{'value': 'sq', 'label': 'Shqip'},
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{'value': 'sr', 'label': 'српски'},
{'value': 'sv', 'label': 'Svenska'},
{'value': 'te', 'label': 'తెలుగు'},
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{'value': 'th', 'label': 'ไทย'},
{'value': 'tr', 'label': 'Türkçe'},
{'value': 'uk', 'label': 'українська мова'},
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{'value': 'vls', 'label': 'West-Vlaams'},
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{'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/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"],
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["node_modules/olm/olm_legacy.js", "webapp", { directwatch: 1 }],
["./config.json", "webapp", { directwatch: 1 }],
["contribute.json", "webapp"],
];
const parseArgs = require('minimist');
const Cpx = require('cpx');
const chokidar = require('chokidar');
const fs = require('fs');
const rimraf = require('rimraf');
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
if (!fs.existsSync('webapp')) {
fs.mkdirSync('webapp');
}
// Check if i18n exists
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: ${event.path}`);
});
}
const cb = (err) => { next(i + 1, err) };
if (watch) {
if (opts.directwatch) {
// cpx -w creates a watcher for the parent of any files specified,
// which in the case of config.json is '.', which inevitably takes
// ages to crawl. So we create our own watcher on the files
// instead.
const copy = () => { cpx.copy(errCheck) };
chokidar.watch(source)
.on('add', copy)
.on('change', copy)
.on('ready', cb)
.on('error', errCheck);
} else {
cpx.on('watch-ready', cb);
cpx.on("watch-error", cb);
cpx.watch();
}
} else {
cpx.copy(cb);
}
}
function genLangFile(lang, dest) {
const reactSdkFile = 'node_modules/matrix-react-sdk/src/i18n/strings/' + lang + '.json';
const riotWebFile = 'src/i18n/strings/' + lang + '.json';
let translations = {};
[reactSdkFile, riotWebFile].forEach(function(f) {
if (fs.existsSync(f)) {
try {
Object.assign(
translations,
JSON.parse(fs.readFileSync(f).toString())
);
} catch (e) {
console.error("Failed: " + f, e);
throw e;
}
}
});
translations = weblateToCounterpart(translations);
const json = JSON.stringify(translations, null, 4);
const jsonBuffer = Buffer.from(json);
const digest = loaderUtils.getHashDigest(jsonBuffer, null, null, 7);
const filename = `${lang}.${digest}.json`;
fs.writeFileSync(dest + filename, json);
if (verbose) {
console.log("Generated language file: " + filename);
}
return filename;
}
function genLangList(langFileMap) {
const languages = {};
INCLUDE_LANGS.forEach(function(lang) {
const normalizedLanguage = lang.value.toLowerCase().replace("_", "-");
const languageParts = normalizedLanguage.split('-');
if (languageParts.length == 2 && languageParts[0] == languageParts[1]) {
languages[languageParts[0]] = {'fileName': langFileMap[lang.value], 'label': lang.label};
} else {
languages[normalizedLanguage] = {'fileName': langFileMap[lang.value], 'label': lang.label};
}
});
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)) {
const keyParts = key.split('|', 2);
if (keyParts.length === 2) {
let obj = outTrs[keyParts[0]];
if (obj === undefined) {
obj = {};
outTrs[keyParts[0]] = obj;
}
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) {
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);
langFileMap[lang]=filename;
genLangList(langFileMap);
}, 500);
};
[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) {
INCLUDE_LANGS.forEach(l => watchLanguage(l.value, I18N_DEST, I18N_FILENAME_MAP));
}
// non-language resources
next(0);