From e6adddbba69cbcc71d3f3ba3d0734b7fefbc44d4 Mon Sep 17 00:00:00 2001
From: Henry Jameson <me@hjkos.com>
Date: Thu, 6 Sep 2018 22:10:41 +0300
Subject: [PATCH] added usage

---
 src/i18n/compare.js | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/src/i18n/compare.js b/src/i18n/compare.js
index 1e8715f365..e93143760d 100755
--- a/src/i18n/compare.js
+++ b/src/i18n/compare.js
@@ -1,5 +1,27 @@
 #!/usr/bin/env node
 const arg = process.argv[2]
+
+if (typeof arg === 'undefined') {
+  console.log('This is a very simple and tiny tool that checks en.json with any other language and')
+  console.log('outputs all the things present in english but missing in foreign language.')
+  console.log('')
+  console.log('Usage: ./compare.js <lang> ')
+  console.log('       or')
+  console.log('       node ./compare.js <lang>')
+  console.log('')
+  console.log('Where <lang> is name of .json file containing language. For ./fi.json it should be:')
+  console.log('      ./compare.js fi ')
+  console.log('')
+  console.log('Limitations: ')
+  console.log('* This program does not work with languages left over in messages.js')
+  console.log('* This program does not check for extra strings present in foreign language but missing')
+  console.log('  in english.js (for now)')
+  console.log('')
+  console.log('There are no other arguments or options. Make an issue if you encounter a bug or want')
+  console.log('some feature to be implemented. Merge requests are welcome as well.')
+  return
+}
+
 const english = require('./en.json')
 const foreign = require(`./${arg}.json`)