1#!/usr/bin/env python3 2# ############################################################################# 3# Copyright (c) 2018-present lzutao <taolzu(at)gmail.com> 4# All rights reserved. 5# 6# This source code is licensed under both the BSD-style license (found in the 7# LICENSE file in the root directory of this source tree) and the GPLv2 (found 8# in the COPYING file in the root directory of this source tree). 9# ############################################################################# 10# This file should be synced with https://github.com/lzutao/meson-symlink 11 12import os 13import pathlib # since Python 3.4 14 15 16def install_symlink(src, dst, install_dir, dst_is_dir=False, dir_mode=0o777): 17 if not install_dir.exists(): 18 install_dir.mkdir(mode=dir_mode, parents=True, exist_ok=True) 19 if not install_dir.is_dir(): 20 raise NotADirectoryError(install_dir) 21 22 new_dst = install_dir.joinpath(dst) 23 if new_dst.is_symlink() and os.readlink(new_dst) == src: 24 print('File exists: {!r} -> {!r}'.format(new_dst, src)) 25 return 26 print('Installing symlink {!r} -> {!r}'.format(new_dst, src)) 27 new_dst.symlink_to(src, target_is_directory=dst_is_dir) 28 29 30def main(): 31 import argparse 32 parser = argparse.ArgumentParser(description='Install a symlink', 33 usage='{0} [-h] [-d] [-m MODE] source dest install_dir\n\n' 34 'example:\n' 35 ' {0} dash sh /bin'.format(pathlib.Path(__file__).name)) 36 parser.add_argument('source', help='target to link') 37 parser.add_argument('dest', help='link name') 38 parser.add_argument('install_dir', help='installation directory') 39 parser.add_argument('-d', '--isdir', 40 action='store_true', 41 help='dest is a directory') 42 parser.add_argument('-m', '--mode', 43 help='directory mode on creating if not exist', 44 default='0o755') 45 args = parser.parse_args() 46 47 dir_mode = int(args.mode, 8) 48 49 meson_destdir = os.environ.get('MESON_INSTALL_DESTDIR_PREFIX', default='') 50 install_dir = pathlib.Path(meson_destdir, args.install_dir) 51 install_symlink(args.source, args.dest, install_dir, args.isdir, dir_mode) 52 53 54if __name__ == '__main__': 55 main() 56