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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#############################################################################
#
# Copyright (C) 2023 The Qt Company Ltd.
# Contact: https://www.qt.io/licensing/
#
# This file is part of the release tools of the Qt Toolkit.
#
# $QT_BEGIN_LICENSE:GPL-EXCEPT$
# 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 General Public License Usage
# Alternatively, this file may be used under the terms of the GNU
# General Public License version 3 as published by the Free Software
# Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
# 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-3.0.html.
#
# $QT_END_LICENSE$
#
#############################################################################
import argparse
import os
import platform
import re
import sys
from multiprocessing import cpu_count
from pathlib import Path
from shutil import copytree, rmtree, which
from subprocess import check_output
from installer_utils import ch_dir, download_archive, extract_archive, is_valid_url_path
from logging_util import init_logger
from runner import run_cmd, run_cmd_async
if sys.version_info < (3, 7):
import asyncio_backport as asyncio
else:
import asyncio
log = init_logger(__name__, debug_mode=False)
class BldPythonError(Exception):
pass
async def prepare_sources(src: str, tmp_base_dir: str) -> str:
log.info("Preparing sources: %s", src)
src_tmp_dir = os.path.join(tmp_base_dir, "src_dir")
rmtree(src_tmp_dir, ignore_errors=True)
if os.path.isdir(src):
if "windows" in platform.system().lower():
copytree(src, src_tmp_dir)
else:
return src
elif os.path.isfile(src):
Path(src_tmp_dir).mkdir(parents=True)
await extract_archive(src, src_tmp_dir)
elif is_valid_url_path(src):
Path(src_tmp_dir).mkdir(parents=True)
dest_file = download_archive(src, tmp_base_dir)
await extract_archive(dest_file, src_tmp_dir)
else:
raise BldPythonError(f"Could not prepare sources from: {src}")
return src_tmp_dir
def locate_source_root(search_dir: str) -> str:
for root, _, files in os.walk(search_dir):
if "configure" in files and os.path.isfile(os.path.join(root, "configure")):
return root
raise BldPythonError(f"Could not find source root directory from: {search_dir}")
async def create_symlink(python_dir: str) -> None:
python_exe = os.path.join(python_dir, 'python.exe')
assert os.path.isfile(python_exe), f"The 'python' executable did not exist: {python_exe}"
version_cmd = [python_exe, '--version']
version_output = check_output(version_cmd, shell=True).decode("utf-8")
match = re.search(r'(\d+)\.(\d+)\.(\d+)', version_output)
if match:
destination = os.path.join(python_dir, 'python' + match.group(1) + match.group(2) + '.exe')
os.symlink(python_exe, destination)
log.info("Symbolic link created from %s to %s", python_exe, destination)
else:
raise BldPythonError(f"Could not parse version output: {version_output}")
async def _build_python_win(src_dir: str) -> str:
log.info("Building..")
log.info("Source dir: %s", src_dir)
build_bat = os.path.join(src_dir, 'PCbuild', 'build.bat')
assert os.path.isfile(build_bat), f"The 'build.bat' batch file did not exist: {build_bat}"
await run_cmd_async(cmd=[build_bat])
dest_dir = os.path.join(src_dir, 'PCbuild', 'amd64')
assert os.path.isdir(dest_dir), f"The build destination directory did not exist: {dest_dir}"
await create_symlink(dest_dir)
log.info("Python built successfully and installed to: %s", dest_dir)
return src_dir
async def build_python_win(src: str) -> str:
base_dir = Path.cwd() / "python_bld_tmp"
base_dir.mkdir(parents=True, exist_ok=True)
src_dir = await prepare_sources(src, str(base_dir))
source_root_dir = locate_source_root(src_dir)
return await _build_python_win(source_root_dir)
async def _build_python(src_dir: str, bld_dir: str, prefix: str) -> str:
log.info("Building..")
log.info(" Source dir: %s", src_dir)
log.info(" Build dir: %s", bld_dir)
log.info(" Prefix: %s", prefix)
system = platform.system().lower()
thread_count = str(cpu_count())
if "darwin" in system:
openssl_query_cmd = ["brew", "--prefix", "openssl"]
openssl_path = run_cmd(cmd=openssl_query_cmd)
if not os.path.exists(openssl_path):
raise BldPythonError(
"Could not find OpenSSL path. Please check that the required brew formula is installed."
)
configure_cmd = [
os.path.join(src_dir, 'configure'),
'--enable-framework',
'--with-openssl=' + openssl_path,
'--prefix=' + prefix
]
make_cmd = ['make', '-j' + thread_count]
make_install_cmd = ['make', 'install']
else:
configure_cmd = [
os.path.join(src_dir, 'configure'),
'--enable-shared',
'--prefix=' + prefix
]
make_cmd = ['make', '-j' + thread_count]
make_install_cmd = ['make', 'install']
rmtree(bld_dir, ignore_errors=True)
Path(bld_dir).mkdir(parents=True)
with ch_dir(bld_dir):
await run_cmd_async(cmd=configure_cmd)
await run_cmd_async(cmd=make_cmd)
await run_cmd_async(cmd=make_install_cmd)
log.info("Python built successfully and installed to: %s", prefix)
return prefix
async def build_python(src: str, prefix: str) -> str:
if "windows" in platform.system().lower():
return await build_python_win(src)
if os.path.isdir(prefix):
log.info("Deleting existing Python build from: %s", prefix)
rmtree(prefix, ignore_errors=True)
base_dir = Path.cwd() / "python_bld_tmp"
base_dir.mkdir(parents=True, exist_ok=True)
src_dir = await prepare_sources(src, str(base_dir))
bld_dir = base_dir / "build_dir"
source_root_dir = locate_source_root(src_dir)
return await _build_python(source_root_dir, str(bld_dir), prefix)
def main() -> None:
"""Main"""
parser = argparse.ArgumentParser(prog="Script to build Python from sources")
parser.add_argument("--src", dest="src", type=str, default=os.getenv("PYTHON_SRC"), help="Path to local checkout or .zip/.7z/.tar.gz")
parser.add_argument("--prefix", dest="prefix", type=str, default=str(Path.home() / "_python_bld"))
args = parser.parse_args(sys.argv[1:])
for tool in ["7z", "tar"]:
if not which(tool):
raise SystemExit(f"Could not find required tool '{tool}' from the system. Aborting..")
asyncio.run(build_python(args.src, args.prefix))
if __name__ == "__main__":
main()
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