cli.js

#!/usr/bin/env node

'use strict';

var translate = require("./translate");
var path = require("path");
var getJSON = require("get-json");

var argv = require("yargs")
    .usage("Usage: $0 <apiKey> <startDir> <sourceLang> <targetLang1,targetLang2,..>")
    .boolean("includeHtml")
    .describe("includeHtml", "Include HTML entries in the translation")
    .help("h")
    .alias("h", "help")
    .example("$0 YOUR_API_KEY examples/ en nl,de", "Translate the file examples/en.json to examples/nl.json and examples/de.json")
    .argv;

if (argv._.length < 4) {
  console.error("Usage: i18-translate-json <apiKey> <startDir> <sourceLang> <targetLang1,targetLang2,..>");
  return 1;
}

// get the start directory from parameters
var apiKey = argv._[0];
var startDir = argv._[1];
var sourceLang = argv._[2];
var targetLang = argv._[3];

// append / at the end of directory
if (startDir[startDir.length - 1] != "/") {
	startDir += "/";
}


// run translation
var run = function() {
  path.resolve(__dirname, startDir);

  translate.run(apiKey, startDir, sourceLang, targetLang, argv.includeHtml, function(err, result) {
  
  	if (err) {
  		console.log("ERROR:");
  		console.log(err);
  		process.exit(0);
  	}
  
  	process.exit(0);
  });
}

// if target languages are not provided, get all languages supported by Google Translate
if (!targetLang) {
  targetLang = [];
  getJSON('https://translation.googleapis.com/language/translate/v2/languages?key=' + apiKey, function(error, response) {
    if (error) {
  		console.log("ERROR:");
  		console.log(error);
  	  process.exit(0);
    }
    else {
      var langs = response.data.languages;
      for (var i = 0; i < langs.length; i++) {
        var lang = langs[i].language;
        if (lang.length === 2) {
          targetLang.push(lang);
        }
      }
      run();
    }
  });
}
else {
  targetLang = targetLang.split(',');
  // trim whitespaces for targetlangs
  for (var i = 0; i < targetLang.length; i++) {
  	targetLang[i] = targetLang[i].trim();
  }
  run();
}