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#!/usr/bin/env python
#
# Copyright 2013 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import optparse
import os
import sys
from util import build_utils
from util import proguard_util
_DANGEROUS_OPTIMIZATIONS = [
# See crbug.com/625992
"code/allocation/variable",
# See crbug.com/625994
"field/propagation/value",
"method/propagation/parameter",
"method/propagation/returnvalue",
]
def _ParseOptions(args):
parser = optparse.OptionParser()
build_utils.AddDepfileOption(parser)
parser.add_option('--proguard-path',
help='Path to the proguard executable.')
parser.add_option('--input-paths',
help='Paths to the .jar files proguard should run on.')
parser.add_option('--output-path', help='Path to the generated .jar file.')
parser.add_option('--proguard-configs', action='append',
help='Paths to proguard configuration files.')
parser.add_option('--mapping', help='Path to proguard mapping to apply.')
parser.add_option('--is-test', action='store_true',
help='If true, extra proguard options for instrumentation tests will be '
'added.')
parser.add_option('--tested-apk-info', help='Path to the proguard .info file '
'for the tested apk')
parser.add_option('--classpath', action='append',
help='Classpath for proguard.')
parser.add_option('--stamp', help='Path to touch on success.')
parser.add_option('--enable-dangerous-optimizations', action='store_true',
help='Enable optimizations which are known to have issues.')
parser.add_option('--verbose', '-v', action='store_true',
help='Print all proguard output')
options, _ = parser.parse_args(args)
classpath = []
for arg in options.classpath:
classpath += build_utils.ParseGnList(arg)
options.classpath = classpath
configs = []
for arg in options.proguard_configs:
configs += build_utils.ParseGnList(arg)
options.proguard_configs = configs
options.input_paths = build_utils.ParseGnList(options.input_paths)
return options
def main(args):
args = build_utils.ExpandFileArgs(args)
options = _ParseOptions(args)
# Work around cases where we switch from a non-proguard setup
# to proguard. The output jar might exist and might be a hardlink
# to the input jar, so remove the output before doing anything
# in that case to avoid an incremental build failure.
try:
out_inode = os.stat(options.output_path).st_ino
except OSError:
out_inode = None
if (out_inode and
out_inode in (os.stat(injar).st_ino for injar in options.input_paths)):
os.unlink(options.output_path)
proguard = proguard_util.ProguardCmdBuilder(options.proguard_path)
proguard.injars(options.input_paths)
proguard.configs(options.proguard_configs)
proguard.outjar(options.output_path)
if options.mapping:
proguard.mapping(options.mapping)
if options.tested_apk_info:
proguard.tested_apk_info(options.tested_apk_info)
classpath = list(set(options.classpath))
proguard.libraryjars(classpath)
proguard.verbose(options.verbose)
if not options.enable_dangerous_optimizations:
proguard.disable_optimizations(_DANGEROUS_OPTIMIZATIONS)
input_paths = proguard.GetInputs()
build_utils.CallAndWriteDepfileIfStale(
proguard.CheckOutput,
options,
input_paths=input_paths,
input_strings=proguard.build(),
output_paths=[options.output_path])
if __name__ == '__main__':
sys.exit(main(sys.argv[1:]))
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