added some command line args

main.py

@@ -5,15 +5,25 @@ from time import time
 from generators import x86_64
 from os import system, remove
 from error import traceback
+from argparse import ArgumentParser
 
 
 def main():
-	in_path = "test2.grnd"
-	out_path = "out"
-	arch = "x86_64"
+	arg_parser = ArgumentParser(prog="GroundPY", description="A compiler for the Ground Programming Language.")
+	arg_parser.add_argument("input", help="ground source file path")
+	arg_parser.add_argument("--output", "-o", default="out", help="output file name")
+	arg_parser.add_argument("--arch", "-a", default="x86_64", choices=["x86_64"], help="the architecture to compile for")
+	arg_parser.add_argument("-S", "--save-asm", help="only generate an asm file, don't actually assemble it", action="store_true")
+	args = arg_parser.parse_args()
+	in_path = args.input
+	out_path = args.output
+	arch = args.arch
 
 	start = time()
-	file = open(in_path, "r")
+	try:
+		file = open(in_path, "r")
+	except FileNotFoundError:
+		traceback("", "fatal", f"no such file or directory \"{in_path}\"")
 	code = file.read()
 	file.close()
 
@@ -23,15 +33,14 @@ def main():
 
 	if arch == "x86_64":
 		generator = x86_64.X86_64Generator(ast, code, out_path)
-	else:
-		traceback(code, "fatal error", f"unkown architecture \"{arch}\"")
 
 	generator.init()
 
-	system(f"nasm -felf64 {out_path}.asm")
-	system(f"ld -m elf_{arch} -o {out_path} {out_path}.o")
-	remove(out_path + ".o")
-	#remove(out_path + ".asm")
+	if not args.save_asm:
+		system(f"nasm -felf64 {out_path}.asm")
+		system(f"ld -m elf_{arch} -o {out_path} {out_path}.o")
+		remove(out_path + ".o")
+		remove(out_path + ".asm")
 
 	compile_time = time()-start
 	print(f"Compiled in {round(compile_time, 3)} seconds.")