New parameter to conf_path to allow the method to create the PG servi…

…ce file at the obtained location if it does not yet exist

pgserviceparser/__init__.py

@@ -9,9 +9,12 @@
 from .exceptions import ServiceFileNotFound, ServiceNotFound
 
 
-def conf_path() -> Path:
+def conf_path(create_if_missing: bool = False) -> Path:
     """Returns the path found for the pg_service.conf on the system as string.
 
+    Args:
+        create_if_missing: Whether to create the file (and eventually its parent folders) if the file does not exist.
+
     Returns:
         path to the pg_service.conf file as string
     """
@@ -26,6 +29,14 @@ def conf_path() -> Path:
         else:  # Linux or Darwin (Mac)
             pg_config_path = Path("~/.pg_service.conf").expanduser()
 
+    if create_if_missing and not pg_config_path.exists():
+        # Make sure all parent directories exist
+        if not pg_config_path.parent.exists():
+            pg_config_path.parent.mkdir(parents=True, exist_ok=True)
+
+        # Finally, make sure the file itself exists
+        Path.touch(pg_config_path)
+
     return pg_config_path