Configtool: add --load switch to load printer, board or ini.

Teach configtool command line functions to load the printer, board
or ini file settings into internal classes. For now this only
exercises the "load" functionality of the classes, but with -vv
you can also see the results of the load dumped to the console.

configtool.py

@@ -26,6 +26,8 @@ import inspect
 
 from configtool.settings import Settings
 from configtool.gui import StartGui
+from configtool.board import Board
+from configtool.printer import Printer
 
 
 cmdFolder = os.path.realpath(os.path.abspath(os.path.split(inspect.getfile(
@@ -33,6 +35,8 @@ cmdFolder = os.path.realpath(os.path.abspath(os.path.split(inspect.getfile(
 
 verbose = 0
 settings = None
+board = None
+printer = None
 
 def getSettings(arg = None):
   global settings
@@ -42,7 +46,37 @@ def getSettings(arg = None):
   return settings
 
 def cmdLoad(arg):
-  print("Want to load %s, but don't know how.\n" % arg)
+  xx, ext = os.path.splitext(arg)
+  fn = os.path.basename(arg)
+
+  if ext == ".ini":
+    settings = getSettings(arg)
+    if not settings.loaded:
+      print("Failed to load settings file: %s." % arg)
+      sys.exit(2)
+    return
+
+  if ext == ".h":
+    if fn.startswith("board."):
+      global board
+      board = Board(getSettings())
+      ok, fn = board.loadConfigFile(arg)
+      if not ok:
+        print("Failed trying to load board file: %s." % fn)
+        sys.exit(2)
+      return
+    elif fn.startswith("printer."):
+      global printer
+      printer = Printer(getSettings())
+      ok, fn = printer.loadConfigFile(arg)
+      if not ok:
+        print("Failed trying to load printer file: %s" % fn)
+        sys.exit(2)
+      return
+
+  print("Unrecognized file: %s." % arg)
+  print("Expected one of *.ini, board.*.h or printer.*.h.")
+  sys.exit(2)
 
 def cmdHelp():
   print("""Usage: %s [options]
@@ -56,7 +90,12 @@ Following options are available for command line automation:
                               to get even more output.
 
   -l <file>, --load=<file>    Load a specific printer config, board config
-                              or .ini file.
+                              or .ini file. Can be applied multiple times to
+                              load multiple files.
+
+                              Content of this file is valid before the GUI
+                              loads, only. GUI will overwrite them with the
+                              files found in config.h.
 """ % sys.argv[0])
 
 def CommandLine(argv):