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# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
import logging
import os
import sys
from argparse import ArgumentParser, RawTextHelpFormatter
from qtpy2cpp_lib.visitor import ConvertVisitor
DESCRIPTION = "Tool to convert Python to C++"
def create_arg_parser(desc):
parser = ArgumentParser(description=desc,
formatter_class=RawTextHelpFormatter)
parser.add_argument('--debug', '-d', action='store_true',
help='Debug')
parser.add_argument('--stdout', '-s', action='store_true',
help='Write to stdout')
parser.add_argument('--force', '-f', action='store_true',
help='Force overwrite of existing files')
parser.add_argument('files', type=str, nargs="+", help='Python source file(s)')
return parser
if __name__ == '__main__':
if sys.version_info < (3, 6, 0):
raise Exception("This script requires Python 3.6")
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)
arg_parser = create_arg_parser(DESCRIPTION)
args = arg_parser.parse_args()
ConvertVisitor.debug = args.debug
for input_file in args.files:
if not os.path.isfile(input_file):
logger.error(f'{input_file} does not exist or is not a file.')
sys.exit(-1)
file_root, ext = os.path.splitext(input_file)
if ext != '.py':
logger.error(f'{input_file} does not appear to be a Python file.')
sys.exit(-1)
ast_tree = ConvertVisitor.create_ast(input_file)
if args.stdout:
base_name = os.path.basename(input_file)
sys.stdout.write(f'// Converted from {base_name}\n')
ConvertVisitor(input_file, sys.stdout).visit(ast_tree)
sys.exit(0)
target_file = file_root + '.cpp'
if os.path.exists(target_file):
if not os.path.isfile(target_file):
logger.error(f'{target_file} exists and is not a file.')
sys.exit(-1)
if not args.force:
logger.error(f'{target_file} exists. Use -f to overwrite.')
sys.exit(-1)
with open(target_file, "w") as file:
base_name = os.path.basename(input_file)
file.write(f'// Converted from {base_name}\n')
ConvertVisitor(input_file, file).visit(ast_tree)
logger.info(f"Wrote {target_file} ...")
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