97 lines
2.7 KiB
Python
97 lines
2.7 KiB
Python
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#!/usr/bin/env python3
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#
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# Copyright (C) 2019 Simmo Saan <simmo.saan@gmail.com>
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# Copyright (C) 2021 Sébastien Helleu <flashcode@flashtux.org>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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#
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"""
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Generate Python stub: API constants and functions, with type annotations.
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This script requires Python 3.6+.
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"""
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from pathlib import Path
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from typing import TextIO
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import re
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DOC_DIR = Path(__file__).resolve().parent / 'en'
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STUB_HEADER = """\
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#
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# WeeChat Python stub file, auto-generated by python_stub.py.
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# DO NOT EDIT BY HAND!
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#
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from typing import Dict
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"""
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CONSTANT_RE = r"""\
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`(?P<constant>WEECHAT_[A-Z0-9_]+)` \((?P<type>(string|integer))\)(?: \+)?\
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"""
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FUNCTION_RE = r"""\
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\[source,python\]
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----
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# prototype
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def (?P<function>\w+)(?P<args>[^)]*)(?P<return>\) -> [^:]+:) \.\.\.\
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"""
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def write_stub_constants(stub_file: TextIO) -> None:
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"""
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Write constants in the stub file, extracted from the Scripting guide.
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"""
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types = {
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'integer': 'int',
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'string': 'str',
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}
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constant_pattern = re.compile(CONSTANT_RE)
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with open(DOC_DIR / 'weechat_scripting.en.adoc') as scripting_file:
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scripting = scripting_file.read()
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for match in constant_pattern.finditer(scripting):
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stub_file.write(f'{match["constant"]}: {types[match["type"]]}\n')
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def write_stub_functions(stub_file: TextIO) -> None:
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"""
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Write function prototypes in the stub file, extracted from the
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Plugin API reference.
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"""
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function_pattern = re.compile(FUNCTION_RE, re.DOTALL)
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with open(DOC_DIR / 'weechat_plugin_api.en.adoc') as api_doc_file:
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api_doc = api_doc_file.read()
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for match in function_pattern.finditer(api_doc):
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url = f'https://weechat.org/doc/api#_{match["function"]}'
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stub_file.write(f"""\n
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def {match["function"]}{match["args"]}{match["return"]}
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\"""`{match["function"]} in WeeChat plugin API reference <{url}>`_\"""
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...
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""")
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def stub_api() -> None:
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"""Write Python stub file."""
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with open('weechat.pyi', 'w') as stub_file:
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stub_file.write(STUB_HEADER)
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write_stub_constants(stub_file)
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write_stub_functions(stub_file)
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if __name__ == '__main__':
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stub_api()
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