rich console output

examples/config-generator/src/generators/simulation.py

@@ -6,12 +6,12 @@ def apply(partial_xml, get_config_value) -> None:
     simulation_type = get_config_value(key)
     domain_size = get_domain_size(get_config_value)
     if simulation_type == "test":
-            partial_xml.substitute("coupling-cycles", 50)
+        partial_xml.substitute("coupling-cycles", 50)
     elif simulation_type == "short":
-            partial_xml.substitute("coupling-cycles", 250 * domain_size**2)
+        partial_xml.substitute("coupling-cycles", 250 * domain_size**2)
     elif simulation_type == "normal":
-            partial_xml.substitute("coupling-cycles", 500 * domain_size**2)
+        partial_xml.substitute("coupling-cycles", 500 * domain_size**2)
     else:
-            raise ValueError(key + " = " + simulation_type)
+        raise ValueError(key + " = " + simulation_type)
 
     print("Substituted coupling cycles")

examples/config-generator/src/main.py

@@ -241,7 +241,7 @@ def main() -> None:
 
     while True:
         # 2. Create the application menu
-        title = "MaMiCo couette.xml Generator\n"
+        title = term.fmt_bold("MaMiCo couette.xml Generator\n")
         main_menu = []
         for config in configs:
             # Apply overrides from command line
@@ -265,10 +265,18 @@ def main() -> None:
         else:
             if is_valid:
                 main_menu[-1] += "\n"
-                main_menu.append("Generate")
+                main_menu.append("Generate config file(s)")
             else:
-                title += "\n" + validation_errors + "\n"
+                validation_errors = "\n".join(
+                    [term.fmt_red(s) for s in validation_errors.splitlines()]
+                )
+                title += (
+                    term.fmt_red(term.fmt_bold("\nValidation errors:\n"))
+                    + validation_errors
+                    + "\n"
+                )
             # 4. Show and the menu
+            title += "\n(Press Ctrl+C to quit without generating anything)\n"
             selected = term.select(
                 main_menu,
                 title=title,

examples/config-generator/src/term.py

@@ -52,3 +52,27 @@ def select(
 def clear() -> None:
     """Clears all output from the terminal."""
     os.system("cls" if os.name == "nt" else "clear")
+
+
+def fmt_bold(text: str) -> None:
+    """Returns text formatted to be printed to the terminal in bold font.
+    On windows this has no effect.
+
+    Keyword arguments:
+    text -- The text to be formatted
+    """
+    if os.name == "nt":
+        return text
+    return f"\033[1m{text}\033[0m"
+
+
+def fmt_red(text: str) -> None:
+    """Returns text formatted to be printed to the terminal in red font.
+    On windows this has no effect.
+
+    Keyword arguments:
+    text -- The text to be formatted
+    """
+    if os.name == "nt":
+        return text
+    return f"\033[0;31m{text}\033[0m"