make app version accessible from the app and show version in window title.

Author: VasigaranAndAngel

src/main.py

@@ -5,9 +5,11 @@
 
 from capture_api import CaptureAPI
 from ui import MainWindow
+from version import __version__
 
 logging.basicConfig(level=logging.DEBUG)
 
+
 def main() -> int:
     app = QApplication(sys.argv)
 
@@ -28,4 +30,8 @@ def main() -> int:
 
 
 if __name__ == "__main__":
+    if "--version" in sys.argv:
+        print(__version__)
+        sys.exit(0)
+
     sys.exit(main())

src/ui/main_window.py

@@ -21,6 +21,7 @@
 from configs import LOCK_INTERVAL, PRESS_ENTER, configs
 from detect_code import detect_code
 from ui.widgets import DetectionIndicator, FrameLabel, TimerLineEditWidget
+from version import __version__
 
 from .beep_sound import play_beep
 
@@ -38,7 +39,7 @@ def __init__(self) -> None:
         self._capture_option_change_callback: Callable[[str], None] | None = None
         self._mouse_pressed: QPoint | None = None
 
-        self.setWindowTitle("Paste Bar Code")
+        self.setWindowTitle(f"Paste Bar Code - v{__version__}")
 
         win_geo = configs["window_geo"]
         if win_geo == "center":

src/version.py

@@ -0,0 +1,6 @@
+from importlib.metadata import PackageNotFoundError, version
+
+try:
+    __version__ = version("paste-bar-code")
+except PackageNotFoundError:
+    __version__ = "0.0.0"