Florian Duros
1053f99bda
* fix: correct format for i18n files in storybook build * refactor: rename `json` var to `jsonStr`
86 lines
2.7 KiB
TypeScript
86 lines
2.7 KiB
TypeScript
/*
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* Copyright 2026 Element Creations Ltd.
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*
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* SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only OR LicenseRef-Element-Commercial
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* Please see LICENSE files in the repository root for full details.
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*/
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/**
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* Script to generate i18n files for Storybook build.
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*/
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import * as fs from "node:fs";
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import { createHash } from "node:crypto";
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// Base path for i18n strings
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const I18N_BASE_PATH = "./src/i18n/strings/";
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// Destination path for generated i18n files
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const I18N_DEST = "storybook-static/i18n/";
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// List of languages to include
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const INCLUDE_LANGS = [...new Set([...fs.readdirSync(I18N_BASE_PATH)])]
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.filter((fn) => fn.endsWith(".json"))
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.map((f) => f.slice(0, -5));
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// Check if dist exists
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if (!fs.existsSync("dist")) {
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fs.mkdirSync("dist");
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}
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// Check if i18n exists
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if (!fs.existsSync(I18N_DEST)) {
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fs.mkdirSync(I18N_DEST);
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}
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// Type mapping language codes to filenames
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type LangFileMap = Record<string, string>;
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/**
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* Prepare language files by creating hashed filenames and writing them to the destination.
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* @returns Mapping of language codes to filenames
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*/
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function prepareLangFiles(): LangFileMap {
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return INCLUDE_LANGS.reduce<Record<string, string>>((fileMap, lang) => {
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const [filename, json] = createHashFromFile(lang);
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fs.writeFileSync(`${I18N_DEST}${filename}`, json);
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fileMap[lang] = filename;
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return fileMap;
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}, {});
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}
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/**
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* Create a hash from the contents of the language file.
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* @param lang - Language code
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* @returns Tuple of filename and JSON content
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*/
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function createHashFromFile(lang: string): [filename: string, json: string] {
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const translationsPath = `${I18N_BASE_PATH}${lang}.json`;
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const jsonStr = fs.readFileSync(translationsPath).toString();
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const jsonBuffer = Buffer.from(jsonStr);
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const digest = createHash("sha256").update(jsonBuffer).digest("hex").slice(0, 7);
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const filename = `${lang}.${digest}.json`;
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return [filename, jsonStr];
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}
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/**
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* Generate the languages.json file mapping language codes to filenames.
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* @param langFileMap
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*/
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function genLangList(langFileMap: LangFileMap): void {
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const languages: Record<string, string> = {};
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INCLUDE_LANGS.forEach(function (lang) {
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const normalizedLanguage = lang.toLowerCase().replace("_", "-");
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const languageParts = normalizedLanguage.split("-");
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if (languageParts.length == 2 && languageParts[0] == languageParts[1]) {
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languages[languageParts[0]] = langFileMap[lang];
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} else {
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languages[normalizedLanguage] = langFileMap[lang];
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}
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});
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fs.writeFileSync(`${I18N_DEST}/languages.json`, JSON.stringify(languages, null, 4));
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}
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const langFileMap = prepareLangFiles();
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genLangList(langFileMap);
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