Initial commit

lib/server/translation.js

@@ -0,0 +1,99 @@
+/**
+ * Copyright (c) 2017-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+
+const CWD = process.cwd();
+const fs = require('fs-extra');
+const glob = require('glob');
+const path = require('path');
+const mkdirp  = require('mkdirp');
+let siteConfig;
+
+console.log('translation.js triggered...');
+
+function writeFileAndCreateFolder(file, content) {
+  mkdirp.sync(file.replace(new RegExp('/[^/]*$'), ''));
+  fs.writeFileSync(file, content);
+}
+
+function execute() {
+  if (fs.existsSync(CWD + '/languages.js')) {
+    injectContent();
+    translatePages();
+  } else {
+    console.log('No languages besides English enabled');
+  }
+}
+
+function translatePages() {
+  const siteConfig = require(CWD + '/siteConfig.js');
+
+  const files = glob.sync(CWD + '/pages/en/**/*.js');
+  files.forEach(file => {
+    let fileContent = fs.readFileSync(file, 'utf8');
+    let baseName = path.basename(file, '.js');
+
+    for (let i = 0; i < siteConfig['languages'].length; i++) {
+      let language = siteConfig['languages'][i];
+      if (language.tag === 'en') continue;
+      if (siteConfig[language.tag]) {
+        let translatedContent = fileContent.slice(0);
+
+        Object.keys(siteConfig[language.tag]["pages-strings"][baseName])
+          .forEach(function(key) {
+            translatedContent = translatedContent.replace(key, siteConfig[language.tag]["pages-strings"][baseName][key]);
+          });
+
+        let translatedFile = file.replace('/en/', '/' + language.tag + '/');
+        writeFileAndCreateFolder(translatedFile, translatedContent);
+      }
+    }
+  });
+}
+
+function injectContent() {
+  const I18N_JSON_DIR = CWD + '/i18n/';
+
+  const files = glob.sync(I18N_JSON_DIR + '**');
+  const languages = [];
+  const langRegex = /\/i18n\/(.*)\.json$/;
+
+  files.forEach(file => {
+    const extension = path.extname(file);
+    if (extension == '.json') {
+      const match = langRegex.exec(file);
+      const language = match[1];
+      languages.push(language);
+    }
+  });
+
+  let injectedContent = '';
+  languages.filter(language => language != 'en').forEach(language => {
+    injectedContent +=
+      "\nsiteConfig['" +
+      language +
+      "'] = require('./i18n/" +
+      language +
+      ".json');";
+  });
+
+  let siteConfigFile = fs.readFileSync(CWD + '/siteConfig.js', 'utf8');
+  const injectStart = '/* INJECT LOCALIZED FILES BEGIN */';
+  const injectEnd = '/* INJECT LOCALIZED FILES END */';
+  siteConfigFile =
+    siteConfigFile.slice(
+      0,
+      siteConfigFile.indexOf(injectStart) + injectStart.length
+    ) +
+    injectedContent +
+    '\n' +
+    siteConfigFile.slice(siteConfigFile.indexOf(injectEnd));
+  fs.writeFileSync(CWD + '/siteConfig.js', siteConfigFile);
+}
+
+module.exports = execute;