b86630b4b0
New option --skip-condition-cache allows forcing recomputation of condition simplification. Useful when debugging certain condition mappings. Change-Id: I68a85c2e4085ad7a3043d7334db71a334a6469e9 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
121 lines
3.9 KiB
Python
121 lines
3.9 KiB
Python
#!/usr/bin/env python3
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#############################################################################
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##
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## Copyright (C) 2018 The Qt Company Ltd.
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## Contact: https://www.qt.io/licensing/
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##
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## This file is part of the plugins of the Qt Toolkit.
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##
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## $QT_BEGIN_LICENSE:GPL-EXCEPT$
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## Commercial License Usage
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## Licensees holding valid commercial Qt licenses may use this file in
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## accordance with the commercial license agreement provided with the
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## Software or, alternatively, in accordance with the terms contained in
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## a written agreement between you and The Qt Company. For licensing terms
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## and conditions see https://www.qt.io/terms-conditions. For further
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## information use the contact form at https://www.qt.io/contact-us.
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##
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## GNU General Public License Usage
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## Alternatively, this file may be used under the terms of the GNU
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## General Public License version 3 as published by the Free Software
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## Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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## included in the packaging of this file. Please review the following
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## information to ensure the GNU General Public License requirements will
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## be met: https://www.gnu.org/licenses/gpl-3.0.html.
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##
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## $QT_END_LICENSE$
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##
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#############################################################################
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import atexit
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import hashlib
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import json
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import os
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import sys
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import time
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from typing import Callable
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condition_simplifier_cache_enabled = True
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def set_condition_simplified_cache_enabled(value: bool):
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global condition_simplifier_cache_enabled
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condition_simplifier_cache_enabled = value
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def get_current_file_path() -> str:
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try:
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this_file = __file__
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except NameError:
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this_file = sys.argv[0]
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this_file = os.path.abspath(this_file)
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return this_file
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def get_cache_location() -> str:
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this_file = get_current_file_path()
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dir_path = os.path.dirname(this_file)
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cache_path = os.path.join(dir_path, ".pro2cmake_cache", "cache.json")
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return cache_path
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def get_file_checksum(file_path: str) -> str:
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try:
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with open(file_path, "r") as content_file:
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content = content_file.read()
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except IOError:
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content = time.time()
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checksum = hashlib.md5(content.encode("utf-8")).hexdigest()
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return checksum
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def get_condition_simplifier_checksum() -> str:
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current_file_path = get_current_file_path()
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dir_name = os.path.dirname(current_file_path)
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condition_simplifier_path = os.path.join(dir_name, "condition_simplifier.py")
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return get_file_checksum(condition_simplifier_path)
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def init_cache_dict():
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return {
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"checksum": get_condition_simplifier_checksum(),
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"schema_version": "1",
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"cache": {"conditions": {}},
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}
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def simplify_condition_memoize(f: Callable[[str], str]):
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cache_path = get_cache_location()
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cache_file_content = None
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if os.path.exists(cache_path):
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try:
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with open(cache_path, "r") as cache_file:
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cache_file_content = json.load(cache_file)
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except (IOError, ValueError):
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pass
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if not cache_file_content:
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cache_file_content = init_cache_dict()
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current_checksum = get_condition_simplifier_checksum()
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if cache_file_content["checksum"] != current_checksum:
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cache_file_content = init_cache_dict()
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def update_cache_file():
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if not os.path.exists(cache_path):
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os.makedirs(os.path.dirname(cache_path), exist_ok=True)
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with open(cache_path, "w") as cache_file_write_handle:
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json.dump(cache_file_content, cache_file_write_handle, indent=4)
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atexit.register(update_cache_file)
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def helper(condition: str) -> str:
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if condition not in cache_file_content["cache"]["conditions"] or not condition_simplifier_cache_enabled:
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cache_file_content["cache"]["conditions"][condition] = f(condition)
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return cache_file_content["cache"]["conditions"][condition]
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return helper
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