mirror of
https://github.com/scratchfoundation/scratch-www.git
synced 2024-12-17 19:12:40 -05:00
9e4ef5fb1b
* Transifex transition Scripts and configuration for transition to Transifex for translation. * Transifex transition update changed the name of the place where translations are saved from ‘translations’ to localizations so that we can have a consistent name in both scratchr2, and scratch-www. A couple of other little clean-ups to make sure that it’s ES5 compliant. - don’t use const - don’t use template strings (backticks)
273 lines
10 KiB
JavaScript
273 lines
10 KiB
JavaScript
// -----------------------------------------------------------------------------
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// Helper Methods for build-locales node script.
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// -----------------------------------------------------------------------------
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var crypto = require('crypto');
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var fs = require('fs');
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var path = require('path');
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var po2icu = require('po2icu');
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var isArray = require('lodash.isarray');
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var Helpers = {};
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/**
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* Get the md5 has of a string with whitespace removed.
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*
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* @param {string} string a string
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* @return {string} an md5 hash of the string in hex.
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*/
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Helpers.getMD5 = function (string) {
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var cleanedString = string.replace(/\s+/g, '');
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return crypto.createHash('md5').update(cleanedString, 'utf8').digest('hex');
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};
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/**
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* Customizer for icuWithIds merge.
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* If icu key already has an id value, concatenate additional ids instead
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* of replacing.
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*
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* @param {array} objVal current value
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* @param {string} srcVal new value
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* @return {array} objVal with srcVal concatenated
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*/
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Helpers.customMerge = function (objVal, srcVal) {
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if (isArray(objVal)) {
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return objVal.concat(srcVal);
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}
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};
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/*
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Existing translations should be in the key value format specified by react-intl (i.e.
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formatted message id, with icu string as the value). New Translations should be in the
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format returned by po2icu (i.e. a source language icu string for key, and a localized
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language icu string for value).
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ICU Map is an object in the reverse react-intl formatting (icu string as key), which will
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help determine if the translation belongs in www currently.
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*/
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Helpers.mergeNewTranslations = function (existingTranslations, newTranslations, icuTemplate, md5Map) {
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for (var id in newTranslations) {
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var md5 = Helpers.getMD5(id);
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if (md5Map.hasOwnProperty(md5) && newTranslations[id].length > 0) {
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md5Map[md5].forEach(function (msgId) {
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existingTranslations[msgId] = newTranslations[id];
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});
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}
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}
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//Fill in defaults
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for (var icuId in icuTemplate) {
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if (!existingTranslations.hasOwnProperty(icuId)) existingTranslations[icuId] = icuTemplate[icuId];
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}
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return existingTranslations;
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};
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Helpers.mergeNewTranslationsWithoutDefaults = function (existingTranslations, newTranslations, icuTemplate, md5Map) {
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for (var id in newTranslations) {
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var md5 = Helpers.getMD5(id);
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if (md5Map.hasOwnProperty(md5) && newTranslations[id].length > 0) {
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md5Map[md5].forEach(function (msgId) {
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existingTranslations[msgId] = newTranslations[id];
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});
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}
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}
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//Fill in empty string for any missing translations
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for (var icuId in icuTemplate) {
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if (!existingTranslations.hasOwnProperty(icuId)) existingTranslations[icuId] = '';
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}
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return existingTranslations;
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};
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/**
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* Converts a map of icu strings with react-intl id values into a map
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* with md5 hashes of the icu strings as keys and react-intl id values.
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* This is done so as to eliminate potential po conversion misses that
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* could be caused by different white space formatting between po and icu.
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*
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* The md5 is generated after all white space is removed from the string.
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*
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* @param {object} idICUMap map where key=icuString, value=react-intl id
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*
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* @return {object}
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*/
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Helpers.getMD5Map = function (ICUIdMap) {
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var md5Map = {};
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for (var icu in ICUIdMap) {
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var md5 = Helpers.getMD5(icu);
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md5Map[md5] = ICUIdMap[icu];
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}
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return md5Map;
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};
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/**
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* Grabs the translated strings from the po files for the given language and strings
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* @param {str} lang iso code of the language to use
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* @param {object} idsWithICU key: '<viewName>-<react-intl string id>'.
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* value: english strings for translation
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* @param {object} md5WithIds key: md5 hash of the english strings for translation.
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* value: '<viewName>-<react-intl string id>'
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* @return {object} translations – sub-objects by view containing:
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* key: '<react-intl string id>'
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* value: translated version of string
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*/
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Helpers.getTranslationsForLanguage = function (lang, idsWithICU, md5WithIds, separator) {
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var poUiDir = path.resolve(__dirname, '../../node_modules/scratchr2_translations/ui');
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var jsFile = path.resolve(poUiDir, lang + '/LC_MESSAGES/djangojs.po');
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var pyFile = path.resolve(poUiDir, lang + '/LC_MESSAGES/django.po');
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var translations = {};
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separator = separator || ':';
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try {
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fs.accessSync(jsFile, fs.R_OK);
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var jsTranslations = po2icu.poFileToICUSync(lang, jsFile);
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translations = Helpers.mergeNewTranslations(translations, jsTranslations, idsWithICU, md5WithIds);
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} catch (err) {
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if (err.code !== 'ENOENT') {
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throw err;
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}
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}
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try {
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fs.accessSync(pyFile, fs.R_OK);
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var pyTranslations = po2icu.poFileToICUSync(lang, pyFile);
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translations = Helpers.mergeNewTranslations(translations, pyTranslations, idsWithICU, md5WithIds);
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} catch (err) {
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if (err.code !== 'ENOENT') {
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throw err;
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}
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}
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var translationsByView = {};
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for (var id in translations) {
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var ids = id.split(separator); // [viewName, stringId]
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var viewName = ids[0];
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var stringId = ids[1];
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if (!translationsByView.hasOwnProperty(viewName)) {
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translationsByView[viewName] = {};
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}
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if (!translationsByView[viewName].hasOwnProperty(lang)) {
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translationsByView[viewName][lang] = {};
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}
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translationsByView[viewName][lang][stringId] = translations[id];
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}
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return translationsByView;
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};
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/**
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* Grabs the translated strings from the po files for the given language and strings
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* @param {str} lang iso code of the language to use
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* @param {object} idsWithICU key: '<viewName>-<react-intl string id>'.
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* value: english strings for translation
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* @param {object} md5WithIds key: md5 hash of the english strings for translation.
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* value: '<viewName>-<react-intl string id>'
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* @return {object} translations – sub-objects by view containing:
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* key: '<react-intl string id>'
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* value: translated version of string
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* empty if no translation present
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*/
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Helpers.getTranslationsForLanguageWithoutDefaults = function (lang, idsWithICU, md5WithIds, separator) {
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var poUiDir = path.resolve(__dirname, '../../node_modules/scratchr2_translations/ui');
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var jsFile = path.resolve(poUiDir, lang + '/LC_MESSAGES/djangojs.po');
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var pyFile = path.resolve(poUiDir, lang + '/LC_MESSAGES/django.po');
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var translations = {};
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separator = separator || ':';
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try {
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fs.accessSync(jsFile, fs.R_OK);
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var jsTranslations = po2icu.poFileToICUSync(lang, jsFile);
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translations = Helpers.mergeNewTranslationsWithoutDefaults(translations,
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jsTranslations, idsWithICU, md5WithIds);
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} catch (err) {
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if (err.code !== 'ENOENT') {
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throw err;
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}
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}
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try {
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fs.accessSync(pyFile, fs.R_OK);
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var pyTranslations = po2icu.poFileToICUSync(lang, pyFile);
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translations = Helpers.mergeNewTranslationsWithoutDefaults(translations,
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pyTranslations, idsWithICU, md5WithIds);
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} catch (err) {
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if (err.code !== 'ENOENT') {
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throw err;
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}
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}
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var translationsByView = {};
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for (var id in translations) {
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var ids = id.split(separator); // [viewName, stringId]
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var viewName = ids[0];
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var stringId = ids[1];
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if (!translationsByView.hasOwnProperty(viewName)) {
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translationsByView[viewName] = {};
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}
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if (!translationsByView[viewName].hasOwnProperty(lang)) {
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translationsByView[viewName][lang] = {};
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}
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translationsByView[viewName][lang][stringId] = translations[id];
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}
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return translationsByView;
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};
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Helpers.writeTranslationsToJS = function (outputDir, viewName, translationObject) {
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var objectString = JSON.stringify(translationObject);
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var fileString = 'window._messages = ' + objectString + ';';
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fs.writeFileSync(outputDir + '/' + viewName + '.intl.js', fileString);
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};
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// Returns a FormattedMessage id with english string as value. Use for default values in translations
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// Sample structure: { 'general-general.blah': 'blah', 'about-about.blah': 'blahblah' }
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Helpers.idToICUMap = function (viewName, ids, separator) {
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var idsToICU = {};
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separator = separator || ':';
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for (var id in ids) {
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idsToICU[viewName + separator + id] = ids[id];
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}
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return idsToICU;
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};
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// Reuturns reverse (i.e. english string with message key as the value) object for searching po files.
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// Sample structure: { 'blah': 'general-general.blah', 'blahblah': 'about-about.blah' }
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Helpers.icuToIdMap = function (viewName, ids, separator) {
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var icuToIds = {};
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separator = separator || ':';
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for (var id in ids) {
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icuToIds[ids[id]] = [viewName + separator + id];
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}
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return icuToIds;
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};
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Helpers.writeTranslations = function (name, l10n, languages) {
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var ids = require(l10n);
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var idsWithICU = Helpers.idToICUMap(name, ids);
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var icuWithIds = Helpers.icuToIdMap(name, ids);
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var md5WithIds = Helpers.getMD5Map(icuWithIds);
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var isoCodes = Object.keys(languages);
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var outputDir = path.resolve(__dirname, '../../localizations/', name);
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try {
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fs.accessSync(outputDir, fs.F_OK);
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} catch (err) {
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// Doesn't exist - create it.
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fs.mkdirSync(outputDir);
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}
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process.stdout.write(`Writing translations to ${outputDir}\n`);
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for (var isoCode in isoCodes) {
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if (isoCodes[isoCode] !== 'en'){
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var translations = Helpers.getTranslationsForLanguageWithoutDefaults(
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isoCodes[isoCode], idsWithICU, md5WithIds);
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var fileString = JSON.stringify(translations[name][isoCodes[isoCode]]);
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fs.writeFileSync(outputDir + '/' + isoCodes[isoCode] + '.json', fileString);
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}
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}
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};
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module.exports = Helpers;
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