convert language files from ini to json

src/node/ini2json.js

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+/*
+ * THIS FILE IS ONLY FOR TESTING
+ */
+
+/*
+* REQUIRE MODULES
+*/
+var languages = require('languages4translatewiki')
+  , fs = require('fs')
+  , path = require('path')
+  , _ = require('underscore');
+
+/*
+* PRIVATE
+*/
+
+// locales will store all locales ini files merged (core+plugins) in RAM
+var locales = {};
+
+// convert an ini file string (input) to JSON {key: value, key2: value2...}
+var parseIni = function (input) {
+  var result = {},
+  lines = input.split('\n');
+  _.each (lines, function(line) {
+    line = line.trim();
+    if ((line.length > 0) && (line[0] != ';') && (line[0] != '[')) {
+      line = line.split('=', 2);
+      if (line.length == 2) result[line[0].trim()]=line[1].trim();
+    }	
+  });
+  return result;
+}
+
+// convert JSON obj {key: value, key2: value2...} to ini file string
+var generateIni = function (obj, section) {
+  //english by default
+  if (section == 'en') section = '*';
+  var result = "["+section+"]\n";
+  _.each (obj, function(value, key) {
+    result += key+" = "+value+"\n";
+  });
+  return result;
+}
+
+//explore recursive subdirectories from root and execute callback
+//don't explore symbolic links
+var exploreDir = function (root, callback) {
+  var stat = fs.lstatSync(root);
+  if (stat.isDirectory() && !stat.isSymbolicLink()) {
+    var names = fs.readdirSync(root),
+    subdirs = [],
+    files = [];
+    names.forEach (function(file) {
+      file = path.resolve(root,file);
+      stat = fs.lstatSync(file);
+      if (stat.isDirectory() && !stat.isSymbolicLink()) {
+        subdirs.push(file);
+      } else {
+        files.push(file);
+      }
+    });
+    callback(root, subdirs, files);
+    subdirs.forEach(function (d) {
+      exploreDir(d, callback);
+    });
+  }
+};
+
+// return all files languages absolute path group by langcode
+// {es: [pathcore, pathplugin1...], en:...}
+var getAllLocalesPaths = function () {
+  var result = {};
+
+  //extract only files paths with name is a supported language code and have ini extension
+  var extractLangs = function (root, subdirs, files) {
+    _.each(files, function(file) {
+      var ext = path.extname(file),
+      locale = path.basename(file, ext).toLowerCase();
+      if ((ext == '.ini') && languages.isValid(locale)) {
+        if (!(_.has(result, locale))) result[locale] = [];
+        result[locale].push(file);
+      }
+    });
+  }
+
+  //add core supported languages first
+  var root = path.resolve(__dirname+"/../locales");
+  exploreDir (root, extractLangs);
+  //add plugins languages (if any)
+  //root = path.resolve(__dirname+"/../../node_modules");
+  //exploreDir (root, extractLangs);
+
+  return result;
+}
+
+//save in locales all ini files merged by language code
+var getAllLocales = function () {
+  _.each (getAllLocalesPaths(), function(files, langcode) {
+    locales[langcode]={}
+    _.each (files, function(file) {
+      _.extend(locales[langcode], parseIni(fs.readFileSync(file,'utf8')));
+    });
+    //locales[langcode] = generateIni(locales[langcode], langcode);
+  });
+}
+
+//return all languages availables with nativeName and direction
+//{es: {nativeName: "español", direction: "ltr"},...}
+var getAvailableLangs = function () {
+  var result = {};
+  if (_.isEmpty(locales)) getAllLocales();
+  _.each(_.keys(locales), function(langcode) {
+    result[langcode]=languages.getLanguageInfo(langcode);
+  });
+  return result;
+}
+
+//return locale index that will be served in /locales.ini
+var generateLocaleIndex = function () {
+  var result = '';
+  if (_.isEmpty(locales)) getAllLocales();
+  result += locales['en']+"\n";
+  _.each(_.keys(locales), function(langcode) {
+    if (langcode != 'en') result+='['+langcode+']\n@import url(locales/'+langcode+'.ini)\n';
+  });
+  return result;
+}
+
+var root = path.resolve(__dirname+"/../locales");
+
+getAllLocales();
+
+_.each(locales, function(translation, langcode) {
+  console.log('escribiendo '+langcode);
+  translation = JSON.stringify(translation);
+  fs.writeFileSync(root+"/"+langcode+".json", translation, 'utf8');  
+});
+
+console.log('escribiendo locales.json');
+fs.writeFileSync(root+"/locales.json", JSON.stringify(locales), 'utf8'); 
+