added command line arguments; made adding the example data optional

grum/cli.py

@@ -1,3 +1,4 @@
+import argparse
 import sys
 
 from PyQt5.QtWidgets import QApplication
@@ -10,9 +11,22 @@ def main():
     app = QApplication(sys.argv)
     theme.apply(app)
     ctrl_c.setup(app)
-    mw = MainWindow()
+    clargs = handle_clargs()
+    mw = MainWindow(**clargs)
     mw.show()
     sys.exit(app.exec())
 
 
+def handle_clargs():
+    DESC = "grum - GUI for Remote Unified Monitoring"
+    parser = argparse.ArgumentParser(description=DESC, formatter_class=argparse.ArgumentDefaultsHelpFormatter)
+
+    parser.add_argument("-H", "--host", default="localhost", help="Server host name")
+    parser.add_argument("-P", "--port", default=8000, type=int, help="Server port number")
+
+    parser.add_argument("-e", "--examples", dest="add_examples", action="store_true", help="Add example data")
+
+    return parser.parse_args().__dict__
+
+
 

grum/mainwin.py

@@ -15,16 +15,18 @@ class MainWindow(QMainWindow):
 
     sig_make_new_plot = pyqtSignal(str, PlotDescription)
 
-    def __init__(self, *args, title="grum", host="localhost", port=8000, **kwargs):
+    def __init__(self, *args, title="grum", host="localhost", port=8000, add_examples=False, **kwargs):
         super().__init__(*args, **kwargs)
         self.setWindowTitle(title)
         self.setWindowIcon(assets.icon())
 
         self.lst = lst = DictList()
-        lst.update(exampledata)
         lst.setAlternatingRowColors(True)
         lst.itemDoubleClicked.connect(self.on_dclick_list_item)
 
+        if add_examples:
+            lst.update(exampledata)
+
         lst_menu = lst.lst.menu
         lst_menu.addSeparator()
         lst_menu.addAction("Plot selected", self.on_plot_selected)