diff options
Diffstat (limited to 'sources/shiboken2/libshiboken/embed/signature_bootstrap.py')
| -rw-r--r-- | sources/shiboken2/libshiboken/embed/signature_bootstrap.py | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/sources/shiboken2/libshiboken/embed/signature_bootstrap.py b/sources/shiboken2/libshiboken/embed/signature_bootstrap.py deleted file mode 100644 index eb182d8c4..000000000 --- a/sources/shiboken2/libshiboken/embed/signature_bootstrap.py +++ /dev/null @@ -1,180 +0,0 @@ -############################################################################# -## -## Copyright (C) 2019 The Qt Company Ltd. -## Contact: https://www.qt.io/licensing/ -## -## This file is part of PySide2. -## -## $QT_BEGIN_LICENSE:LGPL$ -## Commercial License Usage -## Licensees holding valid commercial Qt licenses may use this file in -## accordance with the commercial license agreement provided with the -## Software or, alternatively, in accordance with the terms contained in -## a written agreement between you and The Qt Company. For licensing terms -## and conditions see https://www.qt.io/terms-conditions. For further -## information use the contact form at https://www.qt.io/contact-us. -## -## GNU Lesser General Public License Usage -## Alternatively, this file may be used under the terms of the GNU Lesser -## General Public License version 3 as published by the Free Software -## Foundation and appearing in the file LICENSE.LGPL3 included in the -## packaging of this file. Please review the following information to -## ensure the GNU Lesser General Public License version 3 requirements -## will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -## -## GNU General Public License Usage -## Alternatively, this file may be used under the terms of the GNU -## General Public License version 2.0 or (at your option) the GNU General -## Public license version 3 or any later version approved by the KDE Free -## Qt Foundation. The licenses are as published by the Free Software -## Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -## included in the packaging of this file. Please review the following -## information to ensure the GNU General Public License requirements will -## be met: https://www.gnu.org/licenses/gpl-2.0.html and -## https://www.gnu.org/licenses/gpl-3.0.html. -## -## $QT_END_LICENSE$ -## -############################################################################# - -""" -signature_bootstrap.py ----------------------- - -This file was originally directly embedded into the C source. -After it grew more and more, I now prefer to have it as Python file. - -Meanwhile, there is also no more a stub loader necessary: -Because we meanwhile have embedding support, we could also load this file -directly from a .pyc file. - -This file replaces the hard to read Python stub in 'signature.cpp', and we -could distinguish better between bootstrap related functions and loader -functions. -It is embedded into 'signature.cpp' as "embed/signature_bootstrap.inc". -""" - -from __future__ import print_function, absolute_import - -recursion_trap = 0 - -# We avoid real imports in phase 1 that could fail (simply removed all). -# Python 2 is not able to import when the extension import is still active. -# Phase 1 simply defines the functions, which will be used in Phase 2. - -def bootstrap(): - import sys - import os - import tempfile - import traceback - from contextlib import contextmanager - - global recursion_trap - if recursion_trap: - # we are probably called from outside, already - print("Recursion occurred in Bootstrap. Did you start by hand? Then it's ok.") - print("But you should trigger start by 'type.__signature__', only!") - recursion_trap += 1 - - @contextmanager - def ensure_shibokensupport(support_path): - # Make sure that we always have the shibokensupport containing package first. - # Also remove any prior loaded module of this name, just in case. - sys.path.insert(0, support_path) - - sbks = "shibokensupport" - if sbks in sys.modules: - del sys.modules[sbks] - prefix = sbks + "." - for key in list(key for key in sys.modules if key.startswith(prefix)): - del sys.modules[key] - try: - import shibokensupport - yield - except Exception as e: - print("Problem importing shibokensupport:") - print(e) - traceback.print_exc() - print("sys.path:") - for p in sys.path: - print(" " + p) - sys.stdout.flush() - sys.exit(-1) - sys.path.remove(support_path) - - try: - import shiboken2 as root - except ImportError: - # uninstalled case without ctest, try only this one which has __init__: - import shibokenmodule as root - rp = os.path.realpath(os.path.dirname(root.__file__)) - # This can be the shiboken2 directory or the binary module, so search. - look_for = os.path.join("files.dir", "shibokensupport", "signature", "loader.py") - while len(rp) > 3 and not os.path.exists(os.path.join(rp, look_for)): - rp = os.path.abspath(os.path.join(rp, "..")) - - # Here we decide if we work embedded or not. - embedding_var = "pyside_uses_embedding" - use_embedding = bool(getattr(sys, embedding_var, False)) - # We keep the zip file for inspection if the sys variable has been set. - keep_zipfile = hasattr(sys, embedding_var) - loader_path = os.path.join(rp, look_for) - files_dir = os.path.abspath(os.path.join(loader_path, "..", "..", "..")) - assert files_dir.endswith("files.dir") - - # We report in sys what we used. We could put more here as well. - if not os.path.exists(loader_path): - use_embedding = True - support_path = prepare_zipfile() if use_embedding else files_dir - setattr(sys, embedding_var, use_embedding) - - try: - with ensure_shibokensupport(support_path): - from shibokensupport.signature import loader - - except Exception as e: - print('Exception:', e) - traceback.print_exc(file=sys.stdout) - - finally: - if use_embedding and not keep_zipfile: - # clear the temp zipfile - try: - os.remove(support_path) - except OSError as e: - print(e) - print("Error deleting {support_path}, ignored".format(**locals())) - return loader - -# New functionality: Loading from a zip archive. -# There exists the zip importer, but as it is written, only real zip files are -# supported. Before I will start an own implementation, it is easiest to use -# a temporary zip file. - -def prepare_zipfile(): - """ - Write the zip file to a real file and return its name. - It will be implicitly opened as such when we add the name to sys.path . - """ - import base64 - import tempfile - import os - import zipfile - - # 'zipstring_sequence' comes from signature.cpp - zipbytes = base64.b64decode(''.join(zipstring_sequence)) - fd, fname = tempfile.mkstemp(prefix='embedded.', suffix='.zip') - os.write(fd, zipbytes) - os.close(fd) - # Let us test the zipfile if it really is one. - # Otherwise, zipimporter would simply ignore it without notice. - try: - z = zipfile.ZipFile(fname) - z.close() - except zipfile.BadZipFile as e: - print('Broken Zip File:', e) - traceback.print_exc(file=sys.stdout) - finally: - return fname - -# eof |