setup.py

#!/usr/bin/env python

# Copyright (c) 2009-2012, Geoffrey Biggs
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
#    * Redistributions of source code must retain the above copyright
#      notice, this list of conditions and the following disclaimer.
#    * Redistributions in binary form must reproduce the above copyright
#      notice, this list of conditions and the following disclaimer in the
#      documentation and/or other materials provided with the distribution.
#    * Neither the name of the Geoffrey Biggs nor the names of its
#      contributors may be used to endorse or promote products derived from
#      this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# POSSIBILITY OF SUCH DAMAGE.

__version__ = "$Revision: $"
# $Source$

from setuptools import setup
from distutils.command.build_py import build_py
from distutils import log
from pathlib import Path
import sys


def check_path_is_dir(p):
    p = Path(p)
    if not p.isdir():
        sys.stderr.write('Specified PC path {} is not a directory or does not exist'.format(p))


def split_char():
    # Get the character used to split a list of directories.
    if sys.platform == 'win32':
        return ';'
    return ':'


class BuildWithConfigure(build_py):
    user_options = build_py.user_options + [
        ('with-pc-path=', None, 'default search path for .pc files'),
        ]

    def __init__(self, dist):
        build_py.__init__(self, dist)
        self.with_pc_path = None

    def finalize_options(self):
        build_py.finalize_options(self)
        # Split the paths by colon and check individually
        if self.with_pc_path:
            for p in self.with_pc_path.split(split_char()):
                check_path_is_dir(p)

    def run(self):
        build_py.run(self)
        config_dest =  Path(self.build_lib) / 'pykg_config' / 'install_config.py'
        log.info("creating configuration file at %s", config_dest)
        if self.with_pc_path:
            config_dest.write_text('pc_path = "' + self.with_pc_path + '"\n')
        else:
            config_dest.write_text('pc_path = None\n')
        # TODO: should byte-compile the config file here (see
        # build_py.byte_compile())


setup(cmdclass={'build_py':BuildWithConfigure}, use_scm_version=True)