next-i18next/dist/pagesRouter/config/serverSideConfig.mjs.map

The easiest way to translate your NextJs apps.

{"version":3,"file":"serverSideConfig.mjs","names":[],"sources":["../../../src/pagesRouter/config/serverSideConfig.ts"],"sourcesContent":["import fs from 'fs'\nimport path from 'path'\n\nimport { InternalConfig, UserConfig } from '../types'\nimport { getFallbackForLng, unique } from '../utils'\nimport { Module } from 'i18next'\n\n// Server-only logic extracted from createConfig so that the bundler never\n// traces `fs`/`path` from the client side. createConfig invokes this via the\n// `applyServerSideConfig` hook, which is wired up only by callers that are\n// guaranteed to run on the server (e.g. serverSideTranslations).\nexport const applyServerSideConfig = (\n  combinedConfig: any,\n  userConfig: UserConfig\n): void => {\n  const {\n    defaultNS,\n    lng,\n    localeExtension,\n    localePath,\n    localeStructure,\n    fallbackLng,\n  } = combinedConfig\n\n  const userPrefix = userConfig?.interpolation?.prefix\n  const userSuffix = userConfig?.interpolation?.suffix\n  const prefix = userPrefix ?? '{{'\n  const suffix = userSuffix ?? '}}'\n\n  const locales: string[] = combinedConfig.locales.filter(\n    (l: string) => l !== 'default'\n  )\n\n  combinedConfig.preload = locales\n\n  const hasCustomBackend = userConfig?.use?.filter(Boolean).some(\n    (b: Module) => b.type === 'backend'\n  )\n  if (hasCustomBackend) return\n\n  //\n  // Validate defaultNS\n  // https://github.com/i18next/next-i18next/issues/358\n  //\n  if (typeof defaultNS === 'string' && typeof lng !== 'undefined') {\n    if (typeof localePath === 'string') {\n      const defaultLocaleStructure = localeStructure\n        .replace(`${prefix}lng${suffix}`, lng)\n        .replace(`${prefix}ns${suffix}`, defaultNS)\n      const defaultFile = `/${defaultLocaleStructure}.${localeExtension}`\n      const defaultNSPath = path.join(localePath, defaultFile)\n      const defaultNSExists = fs.existsSync(defaultNSPath)\n      const fallback = getFallbackForLng(lng, fallbackLng)\n      const defaultFallbackNSExists = fallback.some(f => {\n        const fallbackFile = defaultFile.replace(lng, f)\n        return fs.existsSync(path.join(localePath, fallbackFile))\n      })\n      if (\n        !defaultNSExists &&\n        !defaultFallbackNSExists &&\n        process.env.NODE_ENV !== 'production'\n      ) {\n        throw new Error(`Default namespace not found at ${defaultNSPath}`)\n      }\n    } else if (typeof localePath === 'function') {\n      const defaultNSPath = localePath(lng, defaultNS, false)\n      const defaultNSExists = fs.existsSync(defaultNSPath)\n      const fallback = getFallbackForLng(lng, fallbackLng)\n      const defaultFallbackNSExists = fallback.some(f => {\n        const fallbackNSPath = localePath(f, defaultNS, false)\n        return fs.existsSync(fallbackNSPath)\n      })\n      if (\n        !defaultNSExists &&\n        !defaultFallbackNSExists &&\n        process.env.NODE_ENV !== 'production'\n      ) {\n        throw new Error(`Default namespace not found at ${defaultNSPath}`)\n      }\n    }\n  }\n\n  //\n  // Set server side backend\n  //\n  if (typeof localePath === 'string') {\n    combinedConfig.backend = {\n      addPath: path.resolve(\n        process.cwd(),\n        `${localePath}/${localeStructure}.missing.${localeExtension}`\n      ),\n      loadPath: path.resolve(\n        process.cwd(),\n        `${localePath}/${localeStructure}.${localeExtension}`\n      ),\n    }\n  } else if (typeof localePath === 'function') {\n    combinedConfig.backend = {\n      addPath: (locale: string, namespace: string) =>\n        localePath(locale, namespace, true),\n      loadPath: (locale: string, namespace: string) =>\n        localePath(locale, namespace, false),\n    }\n  } else if (localePath) {\n    throw new Error(`Unsupported localePath type: ${typeof localePath}`)\n  }\n\n  //\n  // Set server side preload (namespaces)\n  //\n  if (!combinedConfig.ns && typeof lng !== 'undefined') {\n    if (typeof localePath === 'function') {\n      throw new Error(\n        'Must provide all namespaces in ns option if using a function as localePath'\n      )\n    }\n\n    const getNamespaces = (loc: string[]): string[] => {\n      const getLocaleNamespaces = (p: string): string[] => {\n        let ret: string[] = []\n        if (!fs.existsSync(p)) return ret\n        fs.readdirSync(p).forEach((file: string) => {\n          const joinedP = path.join(p, file)\n          if (fs.statSync(joinedP).isDirectory()) {\n            const subRet = getLocaleNamespaces(joinedP).map(\n              n => `${file}/${n}`\n            )\n            ret = ret.concat(subRet)\n            return\n          }\n          ret.push(file.replace(`.${localeExtension}`, ''))\n        })\n        return ret\n      }\n\n      let namespacesByLocale: string[][]\n      const r = combinedConfig.resources\n      if (!localePath && r) {\n        namespacesByLocale = loc.map(locale => Object.keys(r[locale]))\n      } else {\n        namespacesByLocale = loc.map(locale =>\n          getLocaleNamespaces(\n            path.resolve(process.cwd(), `${localePath}/${locale}`)\n          )\n        )\n      }\n\n      const allNamespaces: string[] = []\n      for (const localNamespaces of namespacesByLocale) {\n        allNamespaces.push(...localNamespaces)\n      }\n\n      return unique(allNamespaces)\n    }\n\n    if (\n      localeStructure.indexOf(`${prefix}lng${suffix}`) >\n      localeStructure.indexOf(`${prefix}ns${suffix}`)\n    ) {\n      throw new Error(\n        'Must provide all namespaces in ns option if using a localeStructure that is not namespace-listable like lng/ns'\n      )\n    }\n\n    combinedConfig.ns = getNamespaces(\n      unique([lng, ...getFallbackForLng(lng, fallbackLng)])\n    ) as InternalConfig['ns']\n  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