78 lines
2.5 KiB
Python
78 lines
2.5 KiB
Python
# Copyright 2015 MongoDB Inc.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
import SCons
|
|
import subprocess
|
|
|
|
def _detect(env):
|
|
try:
|
|
abidw = env['ABIDW']
|
|
if not abidw:
|
|
return None
|
|
return abidw
|
|
except KeyError:
|
|
pass
|
|
|
|
return env.WhereIs('abidw')
|
|
|
|
def generate(env):
|
|
|
|
class AbilinkNode(SCons.Node.FS.File):
|
|
def __init__(self, name, directory, fs):
|
|
SCons.Node.FS.File.__init__(self, name, directory, fs)
|
|
|
|
def get_contents(self):
|
|
if not self.rexists():
|
|
return ''
|
|
|
|
fname = self.rfile().abspath
|
|
contents = None
|
|
|
|
try:
|
|
# TODO: If there were python bindings for libabigail, we
|
|
# could avoid the shell out (and probably be faster, as we
|
|
# could get exactly the information we want).
|
|
contents = subprocess.check_output([env.subst('$ABIDW'), fname])
|
|
except subprocess.CalledProcessError, e:
|
|
# ABIDW sometimes fails. In that case, log an error
|
|
# and fall back to the normal contents
|
|
print "WARNING: ABIDW failed for target %s, please file a bug report" % fname
|
|
try:
|
|
contents = open(fname, "rb").read()
|
|
except EnvironmentError, e:
|
|
if not e.filename:
|
|
e.filename = fname
|
|
raise
|
|
|
|
return contents
|
|
|
|
def get_content_hash(self):
|
|
return SCons.Util.MD5signature(self.get_contents())
|
|
|
|
env['ABIDW'] = _detect(env)
|
|
|
|
def ShlibNode(env, name, directory = None, create = 1):
|
|
return env.fs._lookup(env.subst(name), directory, AbilinkNode, create)
|
|
|
|
env.AddMethod(ShlibNode, 'ShlibNode')
|
|
|
|
def shlib_target_factory(arg):
|
|
return env.ShlibNode(arg)
|
|
|
|
env['BUILDERS']['SharedLibrary'].target_factory = shlib_target_factory
|
|
|
|
def exists(env):
|
|
result = _detect(env) != None
|
|
return result
|