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https://github.com/tangerineturtle1/NX2navi.git
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The release is one launcher version that opens a single window in place of the launcher: Get Triforce starts the Triforce Setup the release carries, after checking its sha256, and Play NX2navi starts the game that is built on the PC. Nothing of NX2navi is removed. handover/ holds the source of that window as it was published; the drawn pictures, the Setup program and the release files are not kept in the repository (handover/README.md, "In the repository"). Co-Authored-By: Claude Fable 5.2 <noreply@anthropic.com>
94 lines
3.6 KiB
Python
94 lines
3.6 KiB
Python
"""What NX2navi.exe runs: python\\pythonw.exe app\\<version>\\launcher\\start.pyw [arguments].
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From this version on that is the handover to Triforce (handover.py beside this file), not NX2navi's launcher.
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The contract with the stub (NX2navi's launcher/native/nx2navi.c) is kept as the launcher kept it: a failure before
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the window is up is written to data/logs/crash.log and ends the process with exit code 86 within the six seconds the
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stub waits, so the stub goes back to the version before (app/previous.txt), which is still on the PC. Only when there
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is no version to go back to, or the stub no longer waits, the failure is shown in a message box instead, with the
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address Triforce is at.
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"""
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import os
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import sys
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import traceback
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HERE = os.path.dirname(os.path.abspath(__file__))
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APP = os.path.dirname(HERE)
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STARTUP_FAILED = 86
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STUB_WAITS = 5.0 # the stub waits 6 s for the exit code (QUICK_MS); a second is left for the exit itself
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def launcher_root():
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return os.environ.get('NX2NAVI_LAUNCHER_ROOT') or os.path.dirname(os.path.dirname(APP))
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def rollback_target(root):
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"""The version the stub goes back to on exit code 86: the one app/previous.txt names, when it is another than
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this one and holds a launcher. '' when there is none."""
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try:
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with open(os.path.join(root, 'app', 'previous.txt'), encoding='utf-8-sig') as f:
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prev = (f.read().splitlines() or [''])[0].strip()
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except (OSError, UnicodeDecodeError):
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return ''
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if not prev or prev == os.path.basename(APP):
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return ''
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return prev if os.path.isfile(os.path.join(root, 'app', prev, 'launcher', 'start.pyw')) else ''
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def process_age():
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"""Seconds since Windows made this process, which is when the stub began to wait. Infinite where that cannot be
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read."""
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try:
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import ctypes
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from ctypes import wintypes
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k = ctypes.windll.kernel32
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k.GetCurrentProcess.restype = wintypes.HANDLE
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k.GetProcessTimes.argtypes = [wintypes.HANDLE] + [ctypes.POINTER(wintypes.FILETIME)] * 4
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made, ended, kernel, user, now = (wintypes.FILETIME() for _ in range(5))
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if not k.GetProcessTimes(k.GetCurrentProcess(), *(ctypes.byref(t) for t in (made, ended, kernel, user))):
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return float('inf')
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k.GetSystemTimeAsFileTime(ctypes.byref(now))
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ticks = [t.dwHighDateTime << 32 | t.dwLowDateTime for t in (made, now)]
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return max(0.0, (ticks[1] - ticks[0]) / 1e7)
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except Exception:
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return float('inf')
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def crash(text, box):
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try:
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logs = os.path.join(launcher_root(), 'data', 'logs')
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os.makedirs(logs, exist_ok=True)
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with open(os.path.join(logs, 'crash.log'), 'a', encoding='utf-8') as f:
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f.write(text + '\n')
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except OSError:
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pass
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if not box:
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return
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try:
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import ctypes
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ctypes.windll.user32.MessageBoxW(
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None, 'NX2navi is now Triforce, but the window that takes you there could not open.\n\n'
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'Get Triforce from https://triforceproject.com\n\n' + text[-900:], 'NX2navi', 0x30)
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except Exception:
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print(text, file=sys.stderr)
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def run():
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sys.path.insert(0, HERE) # the embeddable Python puts only its ._pth entries on sys.path
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argv = sys.argv[1:]
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try:
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import handover
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code = handover.main(argv)
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except SystemExit:
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raise
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except Exception:
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root = launcher_root()
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quiet = bool(rollback_target(root)) and '--play' not in argv and process_age() < STUB_WAITS
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crash(traceback.format_exc(), box=not quiet)
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sys.exit(STARTUP_FAILED if quiet else 0)
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sys.exit(code or 0)
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if __name__ == '__main__':
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run()
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