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Filename : osgi.req
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#!/usr/libexec/platform-python
# Copyright (c) 2014, Red Hat, Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. 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.
# 3. Neither the name of Red Hat 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 INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# Authors: Alexander Kurtakov <akurtako@redhat.com>
#          Michal Srb <msrb@redhat.com>

import sys
import os
import traceback
from javapackages.cache.osgi import OSGiCache
from javapackages.common.util import kill_parent_process, init_rpmgen, get_logger

_log = get_logger("osgi.req")


class TagBuilder(object):

    def __init__(self, filelist=None):
        if filelist is None:
            filelist = sys.stdin
        paths = [x.rstrip() for x in filelist.readlines()]
        _log.info("input: {fl}".format(fl=paths))

        cache = OSGiCache(rpmconf)
        requires = []
        for path in paths:

            # symlinks are not interesting, skip them
            if os.path.islink(path):
                continue

            # check if OSGi requires for this path were handled by metadata
            # if so, move on
            if cache.check_path_in_metadata(path):
                continue

            bundle = cache.get_bundle_for_path(path)
            if not bundle:
                continue

            for req in bundle.requires:
                prov = cache.get_bundle(req.bundle)
                if prov:
                    requires.append(req.get_rpm_str(version=prov.version))
                else:
                    requires.append(req.get_rpm_str())

        if requires:
            _log.info(", ".join(requires))
            print("\n".join(requires))


if __name__ == "__main__":
    rpmconf = None
    try:
        rpmconf = init_rpmgen(sys.argv)

        # this dependency generator should never run in SCL environment.
        # but check it, just in case...
        if rpmconf.scl:
            raise Exception("{name} dependency generator doesn't support SCLs"
                            .format(name=os.path.basename(__file__)))

        builder = TagBuilder()
    except Exception:
        traceback.print_exc(file=sys.stderr)
        kill_parent_process(rpmconf)


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# mode: Python
# End:
# vi: ft=python