Read values out of a config file instead of hardcoding them. Further streamline common tasks in a new base config class.

dcc/fabricate.py

@@ -14,7 +14,7 @@ class Fabricate(dcc.doom_base.WadMap):
 	def take_action(self, parsed_args):
 		with tempfile.TemporaryDirectory() as td:
 			with contextlib.chdir(td):
-				command = [dcc.config.DSDA]
+				command = [self.dsda]
 				if not parsed_args.fg and shutil.which("xvfb-run") is not None:
 					command = ["xvfb-run"] + command
 				subprocess.run(command + self.dsda_preamble() +