Script to check for unused strings

private/node_scripts/check-unused-i18n.js

@@ -0,0 +1,71 @@
+var fs = require('fs');
+var path = require('path');
+var _ = require('underscore');
+
+var contents = fs.readFileSync(__dirname + '/../../packages/rocketchat-lib/i18n/en.i18n.json', 'utf-8');
+var keys = _.keys(JSON.parse(contents));
+// var keys = _.keys(JSON.parse(contents)).filter(function(key) { return ['_Description', '_male', '_female', 'theme-color-'].every(function(word) { return key.indexOf(word) === -1; }); });
+var keysFound = [];
+
+function inspectFile(key, contents) {
+	if (contents && contents.indexOf(key) !== -1) {
+		return true;
+	}
+}
+
+function ignoreFunc(file) {
+	if (['/.meteor/', '/node_modules/', '/moment-locales/'].some(function(word) { return file.indexOf(word) !== -1; })) {
+		return true;
+	}
+	var ext = path.extname(file);
+	return ext !== '.coffee' && ext !== '.js' && ext !== '.html';
+}
+
+var walk = function(dir, done) {
+	var results = [];
+	fs.readdir(dir, function(err, list) {
+		if (err) {
+			return done(err);
+		}
+		var pending = list.length;
+		if (!pending) {
+			return done(null, results);
+		}
+		list.forEach(function(file) {
+			file = path.resolve(dir, file);
+			fs.stat(file, function(err, stat) {
+				if (stat && stat.isDirectory()) {
+					walk(file, function(err, res) {
+						results = results.concat(res);
+						if (!--pending) {
+							done(null, results);
+						}
+					});
+				} else {
+					if (!ignoreFunc(file)) {
+						results.push(file);
+					}
+					if (!--pending) {
+						done(null, results);
+					}
+				}
+			});
+		});
+	});
+};
+
+walk(__dirname + '/../..', function(err, files) {
+	if (err) {
+		throw err;
+	}
+	files.forEach(function(file) {
+		contents = fs.readFileSync(file, 'utf-8');
+		var searchKeys = _.difference(keys, keysFound);
+		searchKeys.forEach(function(key) {
+			if (inspectFile(key, contents)) {
+				keysFound.push(key);
+			}
+		});
+	});
+	console.log(_.difference(keys, keysFound));
+});