blob: fdc7f0927e0cf4212dcb08b0c14eb1065ff1681b [file] [log] [blame]
#!/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
import tempfile
from util import build_utils
from util import proguard_util
_DANGEROUS_OPTIMIZATIONS = [
# See crbug.com/825995 (can cause VerifyErrors)
"class/merging/vertical",
"class/unboxing/enum",
# See crbug.com/625992
"code/allocation/variable",
# See crbug.com/625994
"field/propagation/value",
"method/propagation/parameter",
"method/propagation/returnvalue",
]
# Example:
# android.arch.core.internal.SafeIterableMap$Entry -> b:
# 1:1:java.lang.Object getKey():353:353 -> getKey
# 2:2:java.lang.Object getValue():359:359 -> getValue
def _RemoveMethodMappings(orig_path, out_fd):
with open(orig_path) as in_fd:
for line in in_fd:
if line[:1] != ' ':
out_fd.write(line)
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('--proguard-config-exclusions',
default='',
help='GN list of paths to proguard configuration files '
'included by --proguard-configs, but that should '
'not actually be included.')
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('--classpath', action='append',
help='Classpath for proguard.')
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.proguard_config_exclusions = (
build_utils.ParseGnList(options.proguard_config_exclusions))
options.input_paths = build_utils.ParseGnList(options.input_paths)
return options
def main(args):
args = build_utils.ExpandFileArgs(args)
options = _ParseOptions(args)
proguard = proguard_util.ProguardCmdBuilder(options.proguard_path)
proguard.injars(options.input_paths)
proguard.configs(options.proguard_configs)
proguard.config_exclusions(options.proguard_config_exclusions)
proguard.outjar(options.output_path)
# If a jar is part of input no need to include it as library jar.
classpath = [
p for p in set(options.classpath) if p not in options.input_paths
]
proguard.libraryjars(classpath)
proguard.verbose(options.verbose)
if not options.enable_dangerous_optimizations:
proguard.disable_optimizations(_DANGEROUS_OPTIMIZATIONS)
# Do not consider the temp file as an input since its name is random.
input_paths = proguard.GetInputs()
with tempfile.NamedTemporaryFile() as f:
if options.mapping:
input_paths.append(options.mapping)
# Maintain only class name mappings in the .mapping file in order to work
# around what appears to be a ProGuard bug in -applymapping:
# method 'int closed()' is not being kept as 'a', but remapped to 'c'
_RemoveMethodMappings(options.mapping, f)
proguard.mapping(f.name)
input_strings = proguard.build()
if f.name in input_strings:
input_strings[input_strings.index(f.name)] = '$M'
build_utils.CallAndWriteDepfileIfStale(
proguard.CheckOutput,
options,
input_paths=input_paths,
input_strings=input_strings,
output_paths=proguard.GetOutputs(),
depfile_deps=proguard.GetDepfileDeps(),
add_pydeps=False)
if __name__ == '__main__':
sys.exit(main(sys.argv[1:]))