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#!/usr/bin/env python
#
# Copyright (C) 2020 The Android Open Source Project
#
# 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.
""" A tool to convert json file into pb with linker config format."""
import argparse
import collections
import json
import os
import linker_config_pb2
from google.protobuf.descriptor import FieldDescriptor
from google.protobuf.json_format import ParseDict
from google.protobuf.text_format import MessageToString
def Proto(args):
json_content = ''
with open(args.source) as f:
for line in f:
if not line.lstrip().startswith('//'):
json_content += line
obj = json.loads(json_content, object_pairs_hook=collections.OrderedDict)
pb = ParseDict(obj, linker_config_pb2.LinkerConfig())
with open(args.output, 'wb') as f:
f.write(pb.SerializeToString())
def Print(args):
with open(args.source, 'rb') as f:
pb = linker_config_pb2.LinkerConfig()
pb.ParseFromString(f.read())
print(MessageToString(pb))
def SystemProvide(args):
pb = linker_config_pb2.LinkerConfig()
with open(args.source, 'rb') as f:
pb.ParseFromString(f.read())
libraries = args.value.split()
def IsInLibPath(lib_name):
lib_path = os.path.join(args.system, 'lib', lib_name)
lib64_path = os.path.join(args.system, 'lib64', lib_name)
return os.path.exists(lib_path) or os.path.islink(lib_path) or os.path.exists(lib64_path) or os.path.islink(lib64_path)
installed_libraries = list(filter(IsInLibPath, libraries))
for item in installed_libraries:
if item not in getattr(pb, 'provideLibs'):
getattr(pb, 'provideLibs').append(item)
with open(args.output, 'wb') as f:
f.write(pb.SerializeToString())
def Append(args):
pb = linker_config_pb2.LinkerConfig()
with open(args.source, 'rb') as f:
pb.ParseFromString(f.read())
if getattr(type(pb), args.key).DESCRIPTOR.label == FieldDescriptor.LABEL_REPEATED:
for value in args.value.split():
getattr(pb, args.key).append(value)
else:
setattr(pb, args.key, args.value)
with open(args.output, 'wb') as f:
f.write(pb.SerializeToString())
def Merge(args):
pb = linker_config_pb2.LinkerConfig()
for other in args.input:
with open(other, 'rb') as f:
pb.MergeFromString(f.read())
with open(args.out, 'wb') as f:
f.write(pb.SerializeToString())
def GetArgParser():
parser = argparse.ArgumentParser()
subparsers = parser.add_subparsers()
parser_proto = subparsers.add_parser(
'proto', help='Convert the input JSON configuration file into protobuf.')
parser_proto.add_argument(
'-s',
'--source',
required=True,
type=str,
help='Source linker configuration file in JSON.')
parser_proto.add_argument(
'-o',
'--output',
required=True,
type=str,
help='Target path to create protobuf file.')
parser_proto.set_defaults(func=Proto)
print_proto = subparsers.add_parser(
'print', help='Print configuration in human-readable text format.')
print_proto.add_argument(
'-s',
'--source',
required=True,
type=str,
help='Source linker configuration file in protobuf.')
print_proto.set_defaults(func=Print)
system_provide_libs = subparsers.add_parser(
'systemprovide', help='Append system provide libraries into the configuration.')
system_provide_libs.add_argument(
'-s',
'--source',
required=True,
type=str,
help='Source linker configuration file in protobuf.')
system_provide_libs.add_argument(
'-o',
'--output',
required=True,
type=str,
help='Target linker configuration file to write in protobuf.')
system_provide_libs.add_argument(
'--value',
required=True,
type=str,
help='Values of the libraries to append. If there are more than one it should be separated by empty space')
system_provide_libs.add_argument(
'--system',
required=True,
type=str,
help='Path of the system image.')
system_provide_libs.set_defaults(func=SystemProvide)
append = subparsers.add_parser(
'append', help='Append value(s) to given key.')
append.add_argument(
'-s',
'--source',
required=True,
type=str,
help='Source linker configuration file in protobuf.')
append.add_argument(
'-o',
'--output',
required=True,
type=str,
help='Target linker configuration file to write in protobuf.')
append.add_argument(
'--key',
required=True,
type=str,
help='.')
append.add_argument(
'--value',
required=True,
type=str,
help='Values of the libraries to append. If there are more than one it should be separated by empty space')
append.set_defaults(func=Append)
append = subparsers.add_parser(
'merge', help='Merge configurations')
append.add_argument(
'-o',
'--out',
required=True,
type=str,
help='Ouptut linker configuration file to write in protobuf.')
append.add_argument(
'-i',
'--input',
nargs='+',
type=str,
help='Linker configuration files to merge.')
append.set_defaults(func=Merge)
return parser
def main():
args = GetArgParser().parse_args()
args.func(args)
if __name__ == '__main__':
main()
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