Added application version in about dialog (#131)

CHANGELOG.md

@@ -8,6 +8,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 - Updated Pipfile unifying packages and adding custom scripts
 
+### Added
+- Show application version in About dialog
+
 ## [2.1.1] - 2020-01-13
 ### Changed
 - Removed unused resource files

src/TradingMate.py

@@ -3,6 +3,8 @@
 import inspect
 import logging
 import datetime as dt
+import subprocess
+import re
 
 currentdir = os.path.dirname(os.path.abspath(inspect.getfile(inspect.currentframe())))
 parentdir = os.path.dirname(currentdir)
@@ -147,6 +149,21 @@ def get_app_log_filepath(self):
         """Return the full filepath of the log file of application current session"""
         return self._app_log_filepath
 
+    def get_app_version(self):
+        # Find the app version with pip
+        output = subprocess.Popen(
+            "pip3 show TradingMate".split(),
+            stdout=subprocess.PIPE,
+            stderr=subprocess.STDOUT,
+        )
+        # Extract the version from the command output
+        match = re.search(
+            r"Version:\s([0-9].[0-9].[0-9])", str(output.communicate()[0])
+        )
+        if match is None:
+            return "Unknown"
+        return match.group(1).strip()
+
 
 def main():
     # Initialise the business logic

src/UI/TradingMateClient.py

@@ -75,3 +75,6 @@ def is_portfolio_auto_refreshing(self, portfolio_id):
 
     def get_app_log_filepath(self):
         return self._server.get_app_log_filepath()
+
+    def get_app_version(self):
+        return self._server.get_app_version()

src/UI/gtk/UIHandler.py

@@ -85,12 +85,10 @@ def _close_application(self):
         gtk.main_quit()
 
     def _on_show_about_event(self, widget):
-        MessageDialog(
-            self._main_window,
-            "About",
-            Messages.ABOUT_MESSAGE.value,
-            gtk.MessageType.INFO,
-        ).show()
+        message = "Version: {}\n{}".format(
+            self._client.get_app_version(), Messages.ABOUT_MESSAGE.value
+        )
+        MessageDialog(self._main_window, "About", message, gtk.MessageType.INFO).show()
 
     def _on_show_log_event(self, widget):
         self._log_window.show()