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#!/usr/bin/env python3
#-----------------------------------------------------------------------------
# Copyright (c) 2013-2023, PyInstaller Development Team.
#
# Distributed under the terms of the GNU General Public License (version 2
# or later) with exception for distributing the bootloader.
#
# The full license is in the file COPYING.txt, distributed with this software.
#
# SPDX-License-Identifier: (GPL-2.0-or-later WITH Bootloader-exception)
#-----------------------------------------------------------------------------
"""
Prints a list of (maybe) empty hooks.
A hook is listed here if it does not define any of the meaningful names (eg. hiddenimports). So in addition to
empty hooks, this will also print hooks that import these names from a shared hook (like PIL.Image) or are calling
functions in hookutils.
Proposed usage::
./scripts/find-empty-hooks.py | sort | xargs emacs
# In emacs, remove all content in hooks that are really empty.
# Now delete all hook-files less then 2 bytes in size:
find PyInstaller/hooks/ -size -2c -print -delete
"""
import glob
import os
import sys
# Expand PYTHONPATH with PyInstaller package to support running without installation.
pyi_home = os.path.join(os.path.dirname(os.path.abspath(__file__)), '..')
sys.path.insert(0, pyi_home)
import PyInstaller.hooks # noqa: E402
hookspath = os.path.dirname(os.path.abspath(PyInstaller.hooks.__file__))
EXPECTED_NAMES = {'hook', 'hiddenimports', 'excludedimports', 'attrs', 'binaries', 'datas'}
for hookfilename in glob.glob(os.path.join(hookspath, 'hook-*.py')):
with open(hookfilename) as fh:
source = fh.read()
mod = compile(source, hookfilename, 'exec')
co_names = set(mod.co_names)
if co_names.isdisjoint(EXPECTED_NAMES):
# none of the meaningful names in a hook is here
print(os.path.relpath(hookfilename, os.getcwd()))
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