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#!/usr/bin/env python3
import hashlib
import requests
import os
import shutil
import sys
# Initalize from config
INSTALL_DIR = ""
with open("pack-location.txt", "r") as f:
INSTALL_DIR = f.read().strip()
# Apply updates to the actual mod pack
def install():
print("Updating pack...")
# (fname, checksum, url)
mods = read_file("downloads.txt")
names = [mod[0] for mod in mods]
for mod in mods:
if mod[0] in os.listdir(INSTALL_DIR) and hashlib.sha1(open(os.path.join(INSTALL_DIR, mod[0]), 'rb').read()).hexdigest() == mod[1]:
print("Skipping " + mod[0] + ", already up to date")
else:
print(f'Installing {mod[0]} from {mod[2]}...')
download_obj = requests.get(mod[2], stream=True)
with open(os.path.join(INSTALL_DIR, mod[0]), "wb") as write_file:
shutil.copyfileobj(download_obj.raw, write_file)
print("Done!")
print("\nRemoving old versions...")
for jar in os.listdir(INSTALL_DIR):
if jar not in names and os.path.splitext(jar)[1] == ".jar":
os.remove(os.path.join(INSTALL_DIR, jar))
print(f"Removing '{jar}'")
print("\nFinished updating pack!")
# Using the latest urls, update downloads.txt to match the urls and have the correct sha1
def apply_updates():
print("Reading update file...")
mods = read_file("latest-urls.txt")
print("Downloading new versions of all mods...")
with open('downloads.txt', 'w') as f:
f.write('# Format: <jarname> <hex digested sha1> <direct download url>\n')
for mod in mods:
print(f"Downloading {mod[0]}...")
resp = requests.get(mod[1])
hsh = hashlib.sha1(resp.content)
f.write(f'{mod[0]} {hsh.hexdigest()} {resp.url}\n')
print("\nDone downloading updates!")
# Find if any updates are available
def check_updates():
print("Reading update files...")
latest = read_file("latest-urls.txt")
old = read_file("downloads.txt")
old_urls = [mod[2] for mod in old]
print("Checking updates...\nThe following mods have updates available:\n")
for mod in latest:
print(f"Checking for updates to {mod[0]}..." + " " * 35,end="\r")
resp = requests.get(mod[1])
if not resp.url in old_urls:
print(f" -> Found update for {mod[0]}: {resp.url.split('/')[-1]}")
print("Finished checking for updates!" + " " * 35)
def read_file(fil):
strings = []
with open(fil) as f:
for line in f:
string = line.strip().split()
if len(line) >= 1 and line[0] != '#':
# run strip on each element
string = tuple(map(lambda x: x.strip(), string))
strings.append(string)
return strings
if len(sys.argv) < 2:
print(f"Usage: {sys.argv[0]} <apply_updates|find_updates>")
sys.exit(-1)
elif sys.argv[1] == 'install':
install()
elif sys.argv[1] == 'apply_updates':
apply_updates()
elif sys.argv[1] == 'check_updates':
check_updates()
else:
print(f"Usage: {sys.argv[0]} <install|apply_updates|check_updates>")
sys.exit(-1)
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