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#!/usr/bin/env python3
#
# Copyright 2018 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 argparse
import os
import shutil
import sys
import zipfile
from util import build_utils
def _ParseOptions(args):
parser = argparse.ArgumentParser()
parser.add_argument('--depfile', help='Path to the depfile to write to.')
parser.add_argument('--stamp', help='Path to stamp to mark when finished.')
parser.add_argument('--r8-path', help='Path to the r8.jar to use.')
parser.add_argument(
'--input-dex-zip', help='Path to dex files in zip being split.')
parser.add_argument(
'--proguard-mapping-file', help='Path to proguard mapping file.')
parser.add_argument(
'--feature-name',
action='append',
dest='feature_names',
help='The name of the feature module.')
parser.add_argument(
'--feature-jars',
action='append',
help='GN list of path to jars which compirse the corresponding feature.')
parser.add_argument(
'--dex-dest',
action='append',
dest='dex_dests',
help='Destination for dex file of the corresponding feature.')
options = parser.parse_args(args)
assert len(options.feature_names) == len(options.feature_jars) and len(
options.feature_names) == len(options.dex_dests)
options.features = {}
for i, name in enumerate(options.feature_names):
options.features[name] = build_utils.ParseGnList(options.feature_jars[i])
return options
def _RunDexsplitter(options, output_dir):
cmd = build_utils.JavaCmd() + [
'-cp',
options.r8_path,
'com.android.tools.r8.dexsplitter.DexSplitter',
'--output',
output_dir,
'--proguard-map',
options.proguard_mapping_file,
]
for base_jar in options.features['base']:
cmd += ['--base-jar', base_jar]
base_jars_lookup = set(options.features['base'])
for feature in options.features:
if feature == 'base':
continue
for feature_jar in options.features[feature]:
if feature_jar not in base_jars_lookup:
cmd += ['--feature-jar', feature_jar + ':' + feature]
with build_utils.TempDir() as temp_dir:
unzipped_files = build_utils.ExtractAll(options.input_dex_zip, temp_dir)
for file_name in unzipped_files:
cmd += ['--input', file_name]
build_utils.CheckOutput(cmd)
def main(args):
args = build_utils.ExpandFileArgs(args)
options = _ParseOptions(args)
input_paths = [options.input_dex_zip]
for feature_jars in options.features.values():
for feature_jar in feature_jars:
input_paths.append(feature_jar)
with build_utils.TempDir() as dexsplitter_output_dir:
curr_location_to_dest = []
if len(options.features) == 1:
# Don't run dexsplitter since it needs at least 1 feature module.
curr_location_to_dest.append((options.input_dex_zip,
options.dex_dests[0]))
else:
_RunDexsplitter(options, dexsplitter_output_dir)
for i, dest in enumerate(options.dex_dests):
module_dex_file = os.path.join(dexsplitter_output_dir,
options.feature_names[i], 'classes.dex')
if os.path.exists(module_dex_file):
curr_location_to_dest.append((module_dex_file, dest))
else:
module_dex_file += '.jar'
assert os.path.exists(
module_dex_file), 'Dexsplitter tool output not found.'
curr_location_to_dest.append((module_dex_file + '.jar', dest))
for curr_location, dest in curr_location_to_dest:
with build_utils.AtomicOutput(dest) as f:
if curr_location.endswith('.jar'):
if dest.endswith('.jar'):
shutil.copy(curr_location, f.name)
else:
with zipfile.ZipFile(curr_location, 'r') as z:
namelist = z.namelist()
assert len(namelist) == 1, (
'Unzipping to single dex file, but not single dex file in ' +
options.input_dex_zip)
z.extract(namelist[0], f.name)
else:
if dest.endswith('.jar'):
build_utils.ZipDir(
f.name, os.path.abspath(os.path.join(curr_location, os.pardir)))
else:
shutil.move(curr_location, f.name)
build_utils.Touch(options.stamp)
build_utils.WriteDepfile(options.depfile, options.stamp, inputs=input_paths)
if __name__ == '__main__':
sys.exit(main(sys.argv[1:]))