piwalker/ModpackUpdater
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Added failsafe to allow minecraft to launch if update server cant be

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This commit is contained in:
Samuel Walker 2024-06-20 08:48:58 -06:00
parent 1de111ee2c
commit 2f24519015
1 changed files with 41 additions and 38 deletions
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77
Backend.py
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@ -9,49 +9,52 @@ import datetime
def perform_installation(instance_name, prism_command, prism_instance_path): def perform_installation(instance_name, prism_command, prism_instance_path):
ftp = FTP("gitea.piwalker.net") try:
ftp.login() ftp = FTP("gitea.piwalker.net")
ftp.prot_p() ftp.login()
ftp.prot_p()
# Fetching versions.json from FTP # Fetching versions.json from FTP
bio = io.BytesIO() bio = io.BytesIO()
ftp.retrbinary("RETR versions.json", bio.write) ftp.retrbinary("RETR versions.json", bio.write)
bio.seek(0) bio.seek(0)
versions = json.load(bio) versions = json.load(bio)
bio.close() bio.close()
# Checking current version # Checking current version
version = "0.0.0" version = "0.0.0"
version_file_path = os.path.join(prism_instance_path, instance_name, ".minecraft", "version.txt") version_file_path = os.path.join(prism_instance_path, instance_name, ".minecraft", "version.txt")
if os.path.exists(version_file_path): if os.path.exists(version_file_path):
with open(version_file_path, 'r') as fp: with open(version_file_path, 'r') as fp:
version = fp.readline().rstrip() version = fp.readline().rstrip()
# Checking if update is needed # Checking if update is needed
if version != versions[-1]["Version"]: if version != versions[-1]["Version"]:
print(f"Current version: {version}") print(f"Current version: {version}")
print(f"Latest version: {versions[-1]['Version']}") print(f"Latest version: {versions[-1]['Version']}")
# Downloading modpack # Downloading modpack
with tempfile.TemporaryDirectory() as temp_dir: with tempfile.TemporaryDirectory() as temp_dir:
modpack_file_path = os.path.join(temp_dir, instance_name + ".mrpack") modpack_file_path = os.path.join(temp_dir, instance_name + ".mrpack")
with open(modpack_file_path, 'wb') as modpack: with open(modpack_file_path, 'wb') as modpack:
ftp.retrbinary("RETR " + versions[-1]["File"], modpack.write) ftp.retrbinary("RETR " + versions[-1]["File"], modpack.write)
# Running PrismLauncher with modpack # Running PrismLauncher with modpack
subprocess.Popen([prism_command, '-I', modpack_file_path]) subprocess.Popen([prism_command, '-I', modpack_file_path])
# Waiting for installation to complete # Waiting for installation to complete
while True: while True:
time.sleep(5) time.sleep(5)
if os.path.exists(version_file_path): if os.path.exists(version_file_path):
with open(version_file_path, 'r') as fp: with open(version_file_path, 'r') as fp:
version = fp.readline().rstrip() version = fp.readline().rstrip()
if version == versions[-1]["Version"]: if version == versions[-1]["Version"]:
break break
except:
# Launching PrismLauncher with the instance print("Unable to check for updates. Modpack may be out of date")
subprocess.run([prism_command, '-l', instance_name]) finally:
# Launching PrismLauncher with the instance
subprocess.run([prism_command, '-l', instance_name])
def upload_pack(username, password, version_tag, fileName): def upload_pack(username, password, version_tag, fileName):