9a4efd3fff
Both of these jars provide a provider-configuration file in META-INF/services/org.apache.lucene.codecs.Codec registering their respective implementations as providers of this codec. The proper way to merge these files is to concatenate them, but the normal Buck build process would otherwise choose one arbitrarily. Add a new custom rule merge_maven_jars to merge multiple Maven jars together using a simple Python script. The script concatenates all the entries in two zip files, preferring the entry found in the first file on the command line, which is still arbitrary but at least deterministic. It specially handles files in the META-INF/services directory by concatenating them. Use this new rule to merge the old :core and :backward-codecs rules into a single :core-and-backward-codecs rule. Change-Id: I42fd1a130e42cb0eebf7bee61cfdf8545397cd09
51 lines
1.5 KiB
Python
Executable File
51 lines
1.5 KiB
Python
Executable File
#!/usr/bin/env python
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# Copyright (C) 2015 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from __future__ import print_function
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import collections
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import sys
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import zipfile
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if len(sys.argv) < 3:
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print('usage: %s <out.zip> <in.zip>...' % sys.argv[0], file=sys.stderr)
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exit(1)
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outfile = sys.argv[1]
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infiles = sys.argv[2:]
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seen = set()
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SERVICES = 'META-INF/services/'
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try:
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with zipfile.ZipFile(outfile, 'w') as outzip:
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services = collections.defaultdict(lambda: '')
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for infile in infiles:
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with zipfile.ZipFile(infile) as inzip:
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for info in inzip.infolist():
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n = info.filename
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if n in seen:
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continue
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elif n.startswith(SERVICES):
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# Concatenate all provider configuration files.
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services[n] += inzip.read(n)
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continue
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outzip.writestr(info, inzip.read(n))
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seen.add(n)
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for n, v in services.iteritems():
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outzip.writestr(n, v)
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except Exception as err:
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exit('Failed to merge jars: %s' % err)
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