nodewarden/scripts/i18n-validate.cjs

const { readLocale } = require('./i18n-utils.cjs');

const localeFiles = [
  ['en', 'en.ts', 'en'],
  ['zh-CN', 'zh-CN.ts', 'zhCN'],
  ['zh-TW', 'zh-TW.ts', 'zhTW'],
  ['ru', 'ru.ts', 'ru'],
];

const locales = Object.fromEntries(
  localeFiles.map(([locale, fileName, variableName]) => [locale, readLocale(fileName, variableName)])
);
const base = locales.en;
const baseKeys = Object.keys(base).sort();
const placeholderRe = /\{\w+\}/g;
const errors = [];

for (const [locale, table] of Object.entries(locales)) {
  const keys = Object.keys(table).sort();
  const missing = baseKeys.filter((key) => !(key in table));
  const extra = keys.filter((key) => !baseKeys.includes(key));
  if (missing.length || extra.length) {
    errors.push({ locale, missing, extra });
  }

  for (const key of baseKeys) {
    const basePlaceholders = Array.from(String(base[key]).matchAll(placeholderRe), (match) => match[0]).sort().join('|');
    const localePlaceholders = Array.from(String(table[key]).matchAll(placeholderRe), (match) => match[0]).sort().join('|');
    if (basePlaceholders !== localePlaceholders) {
      errors.push({ locale, key, basePlaceholders, localePlaceholders });
    }
  }
}

console.log(JSON.stringify({
  counts: Object.fromEntries(Object.entries(locales).map(([locale, table]) => [locale, Object.keys(table).length])),
  errors,
}, null, 2));

if (errors.length) {
  process.exit(1);
}