automatic i18n translation using google api

tools/auto-i18n/README.md

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+# Run Example
+node translate.js ./../../apps/red-ui/src/assets/i18n/en.json de <YOUR_API_KEY> 
+# API KEY
+AIzaSyC2fOUHLV6nhmCSwKcacaNqumn20k8Ic_M

tools/auto-i18n/translate.js

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+#!/usr/bin/env node
+
+const fs = require('fs');
+const moment = require('moment');
+const _ = require('lodash');
+const path = require('path');
+const agent = require('superagent-promise')(require('superagent'), Promise);
+const { translate } = require("google-translate-api-browser");
+let dicc = {};
+
+//Lang Codes https://ctrlq.org/code/19899-google-translate-languages
+
+if (process.argv.length >= 4) {
+
+  //Args
+  const inputFile = process.argv[2];
+  const destinationCodes = process.argv[3].split(',');
+  const apiKey = process.argv.length > 4 && process.argv[4];
+
+  const apiUrl = _.template('https://www.googleapis.com/language/translate/v2?key=<%= apiKey %>&q=<%= value %>&source=en&target=<%= languageKey %>');
+
+  const transformResponse = (res) => {
+    return _.get(JSON.parse(res.text), ['data', 'translations', 0, 'translatedText'], '');
+  }
+
+  const getCache = (languageKey) => {
+    try {
+      dicc[languageKey] = {};
+      let fileContent = fs.readFileSync(`./translateCache-${languageKey}.txt`, 'utf-8').split('\n');
+      fileContent.map((line)=> {
+        let cached = line.split('|');
+        if(cached[0]) dicc[languageKey][cached[0]] = cached[1];
+      });
+    } catch (error) {
+
+    }
+  }
+  const cachedIndex = (key, value, languageKey) => {
+    const line = key + '|' + value + '\n';
+    dicc[languageKey][key] = value;
+    fs.appendFileSync(`./translateCache-${languageKey}.txt`, line);
+    return value;
+  }
+
+  function iterLeaves(value, keyChain, accumulator, languageKey) {
+    accumulator = accumulator || {};
+    keyChain = keyChain || [];
+    if (_.isObject(value)) {
+      return _.chain(value).reduce((handlers, v, k) => {
+        return handlers.concat(iterLeaves(v, keyChain.concat(k), accumulator, languageKey));
+      }, []).flattenDeep().value();
+    } else {
+      if(typeof value !== 'string')
+        return value;
+
+      return function () {
+        if(!(value in dicc[languageKey])) {
+          console.log(_.template('Translating <%= value %> to <%= languageKey %>')({value, languageKey}));
+
+          let prom;
+          //Translates individual string to language code
+          if(apiKey != '') {
+            //using apiKey
+            prom = agent('GET', apiUrl({
+              value: encodeURI(value),
+              languageKey,
+              apiKey
+            })).then(transformResponse)
+          }
+          else {
+            //using free api key
+            prom = translate(value, { to: languageKey })
+          }
+
+          return prom.then((res) => cachedIndex(value, res, languageKey))
+            .catch((err) => console.log(err))
+            .then((text) => {
+              //Sets the value in the accumulator
+              _.set(accumulator, keyChain, text);
+
+              //This needs to be returned to it's eventually written to json
+              return accumulator;
+            });
+        }
+        else {
+          console.log(value + ' cached: ' + dicc[languageKey][value]);
+          _.set(accumulator, keyChain, dicc[languageKey][value]);
+          return accumulator;
+        }
+      };
+    }
+  }
+
+  Promise.all(_.reduce(destinationCodes, (sum, languageKey) => {
+    const fileName = _.template('./<%= languageKey %>-<%= timeStamp %>.json')({
+      languageKey,
+      timeStamp: moment().unix()
+    });
+
+    //read languageKey Cache.
+    getCache(languageKey);
+
+    //Starts with the top level strings
+    return sum.concat(_.reduce(iterLeaves(JSON.parse(fs.readFileSync(path.resolve(inputFile), 'utf-8')), undefined, undefined, languageKey), (promiseChain, fn) => {
+      return promiseChain.then(fn);
+    }, Promise.resolve()).then((payload) => {
+      fs.writeFileSync(fileName, JSON.stringify(payload));
+    }).then(_.partial(console.log, 'Successfully translated all nodes, file output at ' + fileName)));
+  }, [])).then(() => {
+    process.exit();
+  });
+
+} else {
+  console.error('You must provide an input json file and a comma-separated list of destination language codes.');
+}

tools/auto-i18n/translateCache-de.txt

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+Confirm Action|Aktion bestätigen
+This action requires confirmation, do you wish to proceed?|Diese Aktion muss bestätigt werden. Möchten Sie fortfahren?
+Yes|Ja
+No|Nein
+Projects|Projekte
+My Account|Mein Konto
+Logout|Ausloggen
+New Project|Neues Projekt
+Edit Project|Projekt bearbeiten
+Description|Beschreibung
+Name|Name
+Save Project|Projekt speichern
+You currently have no projects. You can start your work by creating a new one!|Sie haben derzeit keine Projekte. Sie können Ihre Arbeit beginnen, indem Sie eine neue erstellen!
+Download Redaction Report|Redaktionsbericht herunterladen
+Sorting|Sortierung
+Last Updated (Desc)|Zuletzt aktualisiert (Beschreibung)
+Last Updated (Asc)|Zuletzt aktualisiert (Asc)
+Name (Desc)|Name (Beschreibung)
+Failed to delete file: {{filename}}|Fehler beim Löschen der Datei: {{Dateiname}}
+Status: {{status}}|Status: {{status}}
+Number of pages: {{numberOfPages}}|Anzahl der Seiten: {{numberOfPages}}
+Analysis count: {{numberOfAnalyses}}|Anzahl der Analysen: {{numberOfAnalyses}}
+Last updated: {{lastUpdated}}|Letzte Aktualisierung: {{lastUpdated}}
+Project Overview|Projektübersicht
+Upload Files|Daten hochladen
+Requested project: {{projectId}} does not exist! <a href='/ui/projects'>Back to Project Listing. <a/>|Angefordertes Projekt: {{projectId}} existiert nicht! <a href='/ui/projects'>Zurück zur Projektliste.</a>
+Failed to delete project: {{projectName}}|Projekt konnte nicht gelöscht werden: {{projectName}}
+File Details|Dateidetails
+Date added: {{added}}|Datum hinzugefügt: {{hinzugefügt}}
+Failed to upload file: {{name}}|Datei konnte nicht hochgeladen werden: {{name}}
+Language|Sprache
+English|Englisch
+German|Deutsche