add /version command handler

freqtrade/rpc/telegram.py

@@ -11,7 +11,7 @@ from telegram import ParseMode, Bot, Update
 from telegram.error import NetworkError
 from telegram.ext import CommandHandler, Updater
 
-from freqtrade import exchange
+from freqtrade import exchange, __version__
 from freqtrade.misc import get_state, State, update_state
 from freqtrade.persistence import Trade
 
@@ -51,6 +51,7 @@ def init(config: dict) -> None:
         CommandHandler('performance', _performance),
         CommandHandler('count', _count),
         CommandHandler('help', _help),
+        CommandHandler('version', _version),
     ]
     for handle in handles:
         _UPDATER.dispatcher.add_handler(handle)
@@ -430,10 +431,23 @@ def _help(bot: Bot, update: Update) -> None:
 */count:* `Show number of trades running compared to allowed number of trades`
 */balance:* `Show account balance per currency`
 */help:* `This help message`
+*/version:* `Show version`
     """
     send_msg(message, bot=bot)
 
 
+@authorized_only
+def _version(bot: Bot, update: Update) -> None:
+    """
+    Handler for /version.
+    Show version information
+    :param bot: telegram bot
+    :param update: message update
+    :return: None
+    """
+    send_msg('*Version:* `{}`'.format(__version__), bot=bot)
+
+
 def shorten_date(date):
     """
     Trim the date so it fits on small screens

freqtrade/tests/test_telegram.py

@@ -9,14 +9,15 @@ from sqlalchemy import create_engine
 from telegram import Update, Message, Chat
 from telegram.error import NetworkError
 
+from freqtrade import __version__
 from freqtrade.main import init, create_trade
 from freqtrade.misc import update_state, State, get_state
 from freqtrade.persistence import Trade
 from freqtrade.rpc import telegram
 from freqtrade.rpc.telegram import (
     _status, _status_table, _profit, _forcesell, _performance, _count, _start, _stop, _balance,
-    authorized_only, _help, is_enabled, send_msg
-)
+    authorized_only, _help, is_enabled, send_msg,
+    _version)
 
 
 def test_is_enabled(default_conf, mocker):
@@ -498,6 +499,19 @@ def test_help_handle(default_conf, update, mocker):
     assert '*/help:* `This help message`' in msg_mock.call_args_list[0][0][0]
 
 
+def test_version_handle(default_conf, update, mocker):
+    mocker.patch.dict('freqtrade.main._CONF', default_conf)
+    msg_mock = MagicMock()
+    mocker.patch.multiple('freqtrade.main.telegram',
+                          _CONF=default_conf,
+                          init=MagicMock(),
+                          send_msg=msg_mock)
+
+    _version(bot=MagicMock(), update=update)
+    assert msg_mock.call_count == 1
+    assert '*Version:* `{}`'.format(__version__) in msg_mock.call_args_list[0][0][0]
+
+
 def test_send_msg(default_conf, mocker):
     mocker.patch.dict('freqtrade.main._CONF', default_conf)
     mocker.patch.multiple('freqtrade.main.telegram',