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Copy pathfakescripteval.py
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98 lines (80 loc) · 2.67 KB
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# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright (C) 2019-2021 Patryk Obara <patryk.obara@gmail.com>
"""
Fake iscriptevaluator.exe
"""
import os
import re
import subprocess
import urllib.request
import shutil
import toolbox
import tweaks
import xdg
from log import log
PID_FILE = '/tmp/boxtron_{0}'.format(toolbox.get_game_install_id())
def wait_for_previous_process():
"""Wait for other process to end."""
pid = 0
try:
with open(PID_FILE, 'r') as pid_file:
pid = int(pid_file.read())
except FileNotFoundError:
pass
if pid and os.path.isfile('/proc/{0}/cmdline'.format(pid)):
log('waiting for process', pid, 'to stop and delete file', PID_FILE)
subprocess.call(['inotifywait', '-e', 'delete', PID_FILE])
def download_item(i, num, name, desc):
"""Download a file to cache."""
txt = desc['txt']
url = desc['url']
cache_file = xdg.cached_file(name)
if os.path.isfile(cache_file):
return
log('downloading', url, 'to', cache_file)
msg = '{}/{}: {}'.format(i, num, txt)
# TODO use runtime dir instead of cache here
with open(xdg.cached_file('desc.txt'), 'w') as msg_file:
msg_file.write(msg)
with urllib.request.urlopen(url) as resp, open(cache_file, 'wb') as out:
shutil.copyfileobj(resp, out)
def print_current_step():
"""Print description of current 'installation' step."""
# leaving message in a file is not the most sophisticated solution
# works for now; maybe replace with FIFO later, if needed
msg_path = xdg.cached_file('desc.txt')
if not os.path.isfile(msg_path):
return
with open(msg_path, 'r') as msg_file:
msg = msg_file.read().strip()
print(msg, end='')
def iscriptevaluator(args):
"""Pretend to be iscriptevaluator.exe program."""
assert args
last_arg = args[-1]
if '--get-current-step' in args:
print_current_step()
return 0
# SteamAppId is 0 during installation
steam_app_id = 0
script_name_pattern = re.compile(r'.*script_(\d+)\.vdf')
match = script_name_pattern.match(last_arg)
if match:
steam_app_id = match.group(1)
game_id = 'steam:' + steam_app_id
if not tweaks.download_tweak_needed(game_id):
return 0
download_links = tweaks.TWEAKS_DB[game_id]['download']
num = len(download_links)
pid_file = '/tmp/boxtron_{0}'.format(steam_app_id)
i = 0
with toolbox.PidFile(pid_file):
for name, desc in download_links.items():
download_item(i, num, name, desc)
i += 1
try:
os.remove(xdg.cached_file('desc.txt'))
except FileNotFoundError:
pass
status = 0
return status