Fixed run_erc and run_drc makefile targets.

When the schematic and board aren't loaded.

kibot/pre_drc.py

@@ -28,12 +28,11 @@ class Run_DRC(BasePreFlight):  # noqa: F821
 
     def get_targets(self):
         """ Returns a list of targets generated by this preflight """
+        load_board()
         return [Optionable.expand_filename(None, GS.out_dir, GS.def_global_output, 'drc', 'txt')]
 
     def run(self):
         check_script(CMD_PCBNEW_RUN_DRC, URL_PCBNEW_RUN_DRC, '1.4.0')
-        if GS.board is None:
-            load_board()
         output = self.get_targets()[0]
         logger.debug('DRC report: '+output)
         cmd = [CMD_PCBNEW_RUN_DRC, 'run_drc', '-o', output]

kibot/pre_erc.py

@@ -28,13 +28,13 @@ class Run_ERC(BasePreFlight):  # noqa: F821
 
     def get_targets(self):
         """ Returns a list of targets generated by this preflight """
+        load_sch()
         return [Optionable.expand_filename_sch(None, GS.out_dir, GS.def_global_output, 'erc', 'txt')]
 
     def run(self):
         check_eeschema_do()
         # The schematic is loaded only before executing an output related to it.
         # But here we need data from it.
-        load_sch()
         output = self.get_targets()[0]
         logger.debug('ERC report: '+output)
         cmd = [CMD_EESCHEMA_DO, 'run_erc', '-o', output]