offline-minecraft-launcher/oml/stages/config.py

print(colored(colorama.Fore.GREEN,"Reading config..."))
config = configparser.ConfigParser()
config.optionxform = str
config.read(p(omlPath,"config.ini"))

global lv

lv = config["default"]
for var in lv:
	glbs = globals().copy()
	for glb in glbs:
		lv[var] = lv[var].replace("$+" +glb+ "$",str(glbs[glb]))
	
	lcs = locals().copy()
	for lc in lcs:
		lv[var] = lv[var].replace("$" +lc+ "$",str(lcs[lc]))

if lv["osName"] == "":
	lv["osName"] = platform.system().lower()
	if lv["osName"] == "darwin": lv["osName"] = "macos"

if lv["osVersion"] == "":
	lv["osVersion"] = platform.version()

print("")
for setting in lv:
	print(colored(colorama.Fore.BLACK,setting+ "=" +str(lv[setting])))

if len(sys.argv) > 1:
	for arg in sys.argv[1:]:
		if arg.startswith("-"): continue
		argSplit = arg.split("=",1)
		if len(argSplit) > 1:
			lv[argSplit[0]] = argSplit[1]
		else:
			lv[argSplit[0]] = True

if not lv["osName"] in ["windows","linux","macos"]:
	print(colored(colorama.Fore.YELLOW,"\nWarning, unsupported OS detected: '" +lv["osName"]+ "'. Needs to be either windows, linux or macos. Define it with osName=name in the config."),file=sys.stderr)
	print(colored(colorama.Fore.MAGENTA,"Falling back to assuming Linux."))
	lv["osName"] = "linux"

if not "-downloadonly" in sys.argv:
	print(colored(colorama.Fore.GREEN,"Checking for Java..."))
	global javaExe
	javaExe = whereis(lv["java"])
	if javaExe == None:
		print(colored(colorama.Fore.RED,"Java wasn't found at '" +lv["java"]+ "'. Please configure java in config.ini."))
		sys.exit(1)
	
	if lv["jvmArch"] == "":
		print(colored(colorama.Fore.GREEN,"Querying JVM architecture... "),end="")
		try:
			if lv["osName"] != "windows":
				with open(javaExe,"rb") as jh:
					jh.seek(4)
					if int.from_bytes(jh.read(1),"little") == 1:
						lv["jvmArch"] = "x86"
						print("x86")
					else:
						lv["jvmArch"] = "amd64"
						print("Not x86, assuming amd64")
			else:
				with open(javaExe,"rb") as jh:
					jh.seek(60)
					jh.seek(int.from_bytes(jh.read(2),"little") + 4)
					if int.from_bytes(jh.read(2),"little") == 332:
						lv["jvmArch"] = "x86"
						print("x86")
					else:
						lv["jvmArch"] = "amd64"
						print("Not x86, assuming amd64")
		except:
			print(colored(colorama.Fore.YELLOW,"\nWarning, could not query JVM architecture. Needs to be either amd64 or x86. Define it with jvmArch=arch in the config."),file=sys.stderr)
			print(colored(colorama.Fore.MAGENTA,"Assuming amd64."))
			raise

print("")
if not "version" in lv: lv["version"] = input("Version ID: ")
if "-downloadonly" in sys.argv: lv["name"] = "Player"
if not "name" in lv: lv["name"] = input("Player name: ")