c88a1efca9
Py3 doesn't mix bytes/str, so be explicit about which one Test: th Change-Id: Ia091b8378da93f19c3eb7c944199163aa9c63de7
129 lines
4.4 KiB
Python
129 lines
4.4 KiB
Python
#!/usr/bin/env python3
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#
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# Copyright (C) 2018 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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"""
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Parses a input care_map.txt in plain text format; converts it into the proto
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buf message; and writes the result to the output file.
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"""
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import argparse
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import logging
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import sys
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import care_map_pb2
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def GenerateCareMapProtoFromLegacyFormat(lines, fingerprint_enabled):
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"""Constructs a care map proto message from the lines of the input file."""
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# Expected format of the legacy care_map.txt:
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# system
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# system's care_map ranges
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# [system's fingerprint property id]
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# [system's fingerprint]
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# [vendor]
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# [vendor's care_map ranges]
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# [vendor's fingerprint property id]
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# [vendor's fingerprint]
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# ...
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step = 4 if fingerprint_enabled else 2
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assert len(lines) % step == 0, \
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"line count must be multiple of {}: {}".format(step, len(lines))
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care_map_proto = care_map_pb2.CareMap()
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for index in range(0, len(lines), step):
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info = care_map_proto.partitions.add()
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info.name = lines[index]
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info.ranges = lines[index + 1]
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if fingerprint_enabled:
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info.id = lines[index + 2]
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info.fingerprint = lines[index + 3]
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logging.info("Care map info: name %s, ranges %s, id %s, fingerprint %s",
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info.name, info.ranges, info.id, info.fingerprint)
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return care_map_proto
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def ParseProtoMessage(message, fingerprint_enabled):
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"""Parses the care_map proto message and returns its text representation.
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Args:
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message: Care_map in protobuf format.
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fingerprint_enabled: Input protobuf message contains the fields 'id' and
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'fingerprint'.
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Returns:
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A string of the care_map information, similar to the care_map legacy
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format.
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"""
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care_map_proto = care_map_pb2.CareMap()
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care_map_proto.MergeFromString(message)
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info_list = []
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for info in care_map_proto.partitions:
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assert info.name, "partition name is required in care_map"
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assert info.ranges, "source range is required in care_map"
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info_list += [info.name, info.ranges]
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if fingerprint_enabled:
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assert info.id, "property id is required in care_map"
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assert info.fingerprint, "fingerprint is required in care_map"
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info_list += [info.id, info.fingerprint]
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return '\n'.join(info_list)
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def main(argv):
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parser = argparse.ArgumentParser(
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description=__doc__,
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formatter_class=argparse.RawDescriptionHelpFormatter)
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parser.add_argument("input_care_map",
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help="Path to the legacy care_map file (or path to"
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" care_map in protobuf format if --parse_proto is"
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" specified).")
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parser.add_argument("output_file",
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help="Path to output file to write the result.")
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parser.add_argument("--no_fingerprint", action="store_false",
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dest="fingerprint_enabled",
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help="The 'id' and 'fingerprint' fields are disabled in"
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" the caremap.")
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parser.add_argument("--parse_proto", "-p", action="store_true",
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help="Parses the input as proto message, and outputs"
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" the care_map in plain text.")
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parser.add_argument("--verbose", "-v", action="store_true")
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args = parser.parse_args(argv)
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logging_format = '%(filename)s %(levelname)s: %(message)s'
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logging.basicConfig(level=logging.INFO if args.verbose else logging.WARNING,
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format=logging_format)
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with open(args.input_care_map, 'rb') as input_care_map:
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content = input_care_map.read()
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if args.parse_proto:
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result = ParseProtoMessage(content, args.fingerprint_enabled).encode()
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else:
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care_map_proto = GenerateCareMapProtoFromLegacyFormat(
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content.decode().rstrip().splitlines(), args.fingerprint_enabled)
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result = care_map_proto.SerializeToString()
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with open(args.output_file, 'wb') as output:
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output.write(result)
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if __name__ == '__main__':
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main(sys.argv[1:])
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