78 lines
2.5 KiB
Python
78 lines
2.5 KiB
Python
# Copyright (C) 2015 MongoDB Inc.
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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 Affero General Public License, version 3,
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# as published by the Free Software Foundation.
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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 Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import SCons
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import subprocess
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def _detect(env):
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try:
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abidw = env['ABIDW']
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if not abidw:
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return None
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return abidw
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except KeyError:
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pass
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return env.WhereIs('abidw')
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def generate(env):
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class AbilinkNode(SCons.Node.FS.File):
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def __init__(self, name, directory, fs):
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SCons.Node.FS.File.__init__(self, name, directory, fs)
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def get_contents(self):
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if not self.rexists():
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return ''
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fname = self.rfile().abspath
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contents = None
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try:
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# TODO: If there were python bindings for libabigail, we
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# could avoid the shell out (and probably be faster, as we
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# could get exactly the information we want).
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contents = subprocess.check_output([env.subst('$ABIDW'), fname])
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except subprocess.CalledProcessError, e:
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# ABIDW sometimes fails. In that case, log an error
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# and fall back to the normal contents
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print "WARNING: ABIDW failed for target %s, please file a bug report" % fname
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try:
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contents = open(fname, "rb").read()
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except EnvironmentError, e:
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if not e.filename:
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e.filename = fname
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raise
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return contents
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def get_content_hash(self):
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return SCons.Util.MD5signature(self.get_contents())
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env['ABIDW'] = _detect(env)
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def ShlibNode(env, name, directory = None, create = 1):
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return env.fs._lookup(env.subst(name), directory, AbilinkNode, create)
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env.AddMethod(ShlibNode, 'ShlibNode')
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def shlib_target_factory(arg):
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return env.ShlibNode(arg)
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env['BUILDERS']['SharedLibrary'].target_factory = shlib_target_factory
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def exists(env):
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result = _detect(env) != None
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return result
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