def _OptimizeWithR8(options,
config_paths,
libraries,
dynamic_config_data,
print_stdout=False):
with build_utils.TempDir() as tmp_dir:
if dynamic_config_data:
tmp_config_path = os.path.join(tmp_dir, 'proguard_config.txt')
with open(tmp_config_path, 'w') as f:
f.write(dynamic_config_data)
config_paths = config_paths + [tmp_config_path]
tmp_mapping_path = os.path.join(tmp_dir, 'mapping.txt')
# If there is no output (no classes are kept), this prevents this script
# from failing.
build_utils.Touch(tmp_mapping_path)
tmp_output = os.path.join(tmp_dir, 'r8out')
os.mkdir(tmp_output)
feature_contexts = []
if options.feature_names:
for name, dest_dex, input_paths in zip(options.feature_names,
options.dex_dests,
options.feature_jars):
feature_context = _DexPathContext(name, dest_dex, input_paths,
tmp_output)
if name == 'base':
base_dex_context = feature_context
else:
feature_contexts.append(feature_context)
else:
base_dex_context = _DexPathContext('base', options.output_path,
options.input_paths, tmp_output)
cmd = build_utils.JavaCmd(options.warnings_as_errors) + [
'-Dcom.android.tools.r8.allowTestProguardOptions=1',
'-Dcom.android.tools.r8.verticalClassMerging=1',
]
if options.disable_outlining:
cmd += ['-Dcom.android.tools.r8.disableOutlining=1']
cmd += [
'-cp',
options.r8_path,
'com.android.tools.r8.R8',
'--no-data-resources',
'--output',
base_dex_context.staging_dir,
'--pg-map-output',
tmp_mapping_path,
]
if options.disable_checkdiscard:
# Info level priority logs are not printed by default.
cmd += [
'--map-diagnostics:'
'com.android.tools.r8.errors.CheckDiscardDiagnostic',
'error',
'info',
]
if options.desugar_jdk_libs_json:
cmd += [
'--desugared-lib',
options.desugar_jdk_libs_json,
'--desugared-lib-pg-conf-output',
options.desugared_library_keep_rule_output,
]
if options.min_api:
cmd += ['--min-api', options.min_api]
if options.force_enable_assertions:
cmd += ['--force-enable-assertions']
for lib in libraries:
cmd += ['--lib', lib]
for config_file in config_paths:
cmd += ['--pg-conf', config_file]
if options.main_dex_rules_path:
for main_dex_rule in options.main_dex_rules_path:
cmd += ['--main-dex-rules', main_dex_rule]
base_jars = set(base_dex_context.input_paths)
# If a jar is present in multiple features, it should be moved to the base
# module.
all_feature_jars = set()
for feature in feature_contexts:
base_jars.update(all_feature_jars.intersection(
feature.input_paths))
all_feature_jars.update(feature.input_paths)
module_input_jars = base_jars.copy()
for feature in feature_contexts:
feature_input_jars = [
p for p in feature.input_paths if p not in module_input_jars
]
module_input_jars.update(feature_input_jars)
for in_jar in feature_input_jars:
cmd += ['--feature', in_jar, feature.staging_dir]
cmd += sorted(base_jars)
# Add any extra input jars to the base module (e.g. desugar runtime).
extra_jars = set(options.input_paths) - module_input_jars
cmd += sorted(extra_jars)
try:
stderr_filter = dex.CreateStderrFilter(
options.show_desugar_default_interface_warnings)
logging.debug('Running R8')
build_utils.CheckOutput(cmd,
print_stdout=print_stdout,
stderr_filter=stderr_filter,
fail_on_output=options.warnings_as_errors)
except build_utils.CalledProcessError as err:
debugging_link = ('\n\nR8 failed. Please see {}.'.format(
'https://chromium.googlesource.com/chromium/src/+/HEAD/build/'
'android/docs/java_optimization.md#Debugging-common-failures\n'
))
raise build_utils.CalledProcessError(err.cwd, err.args,
err.output + debugging_link)
base_has_imported_lib = False
if options.desugar_jdk_libs_json:
logging.debug('Running L8')
existing_files = build_utils.FindInDirectory(
base_dex_context.staging_dir)
jdk_dex_output = os.path.join(
base_dex_context.staging_dir,
'classes%d.dex' % (len(existing_files) + 1))
base_has_imported_lib = dex_jdk_libs.DexJdkLibJar(
options.r8_path, options.min_api,
options.desugar_jdk_libs_json, options.desugar_jdk_libs_jar,
options.desugar_jdk_libs_configuration_jar,
options.desugared_library_keep_rule_output, jdk_dex_output,
options.warnings_as_errors)
logging.debug('Collecting ouputs')
base_dex_context.CreateOutput(
base_has_imported_lib, options.desugared_library_keep_rule_output)
for feature in feature_contexts:
feature.CreateOutput()
with open(options.mapping_output, 'w') as out_file, \
open(tmp_mapping_path) as in_file:
# Mapping files generated by R8 include comments that may break
# some of our tooling so remove those (specifically: apkanalyzer).
out_file.writelines(l for l in in_file if not l.startswith('#'))
def _OptimizeWithR8(options,
config_paths,
libraries,
dynamic_config_data,
print_stdout=False):
with build_utils.TempDir() as tmp_dir:
if dynamic_config_data:
dynamic_config_path = os.path.join(tmp_dir, 'dynamic_config.flags')
with open(dynamic_config_path, 'w') as f:
f.write(dynamic_config_data)
config_paths = config_paths + [dynamic_config_path]
tmp_mapping_path = os.path.join(tmp_dir, 'mapping.txt')
# If there is no output (no classes are kept), this prevents this script
# from failing.
build_utils.Touch(tmp_mapping_path)
tmp_output = os.path.join(tmp_dir, 'r8out')
os.mkdir(tmp_output)
split_contexts_by_name = {}
if options.feature_names:
for name, dest_dex, input_jars in zip(options.feature_names,
options.dex_dests,
options.feature_jars):
parent_name = options.uses_split.get(name)
if parent_name is None and name != 'base':
parent_name = 'base'
split_context = _SplitContext(name,
dest_dex,
input_jars,
tmp_output,
parent_name=parent_name)
split_contexts_by_name[name] = split_context
else:
# Base context will get populated via "extra_jars" below.
split_contexts_by_name['base'] = _SplitContext('base',
options.output_path, [],
tmp_output)
base_context = split_contexts_by_name['base']
# R8 OOMs with the default xmx=1G.
cmd = build_utils.JavaCmd(options.warnings_as_errors, xmx='2G') + [
'-Dcom.android.tools.r8.allowTestProguardOptions=1',
'-Dcom.android.tools.r8.disableHorizontalClassMerging=1',
]
if options.disable_outlining:
cmd += ['-Dcom.android.tools.r8.disableOutlining=1']
if options.dump_inputs:
cmd += ['-Dcom.android.tools.r8.dumpinputtofile=r8inputs.zip']
cmd += [
'-cp',
options.r8_path,
'com.android.tools.r8.R8',
'--no-data-resources',
'--output',
base_context.staging_dir,
'--pg-map-output',
tmp_mapping_path,
]
if options.disable_checks:
# Info level priority logs are not printed by default.
cmd += ['--map-diagnostics:CheckDiscardDiagnostic', 'error', 'info']
if options.desugar_jdk_libs_json:
cmd += [
'--desugared-lib',
options.desugar_jdk_libs_json,
'--desugared-lib-pg-conf-output',
options.desugared_library_keep_rule_output,
]
if options.min_api:
cmd += ['--min-api', options.min_api]
if options.force_enable_assertions:
cmd += ['--force-enable-assertions']
for lib in libraries:
cmd += ['--lib', lib]
for config_file in config_paths:
cmd += ['--pg-conf', config_file]
if options.main_dex_rules_path:
for main_dex_rule in options.main_dex_rules_path:
cmd += ['--main-dex-rules', main_dex_rule]
_DeDupeInputJars(split_contexts_by_name)
# Add any extra inputs to the base context (e.g. desugar runtime).
extra_jars = set(options.input_paths)
for split_context in split_contexts_by_name.values():
extra_jars -= split_context.input_jars
base_context.input_jars.update(extra_jars)
for split_context in split_contexts_by_name.values():
if split_context is base_context:
continue
for in_jar in sorted(split_context.input_jars):
cmd += ['--feature', in_jar, split_context.staging_dir]
cmd += sorted(base_context.input_jars)
try:
stderr_filter = dex.CreateStderrFilter(
options.show_desugar_default_interface_warnings)
logging.debug('Running R8')
build_utils.CheckOutput(cmd,
print_stdout=print_stdout,
stderr_filter=stderr_filter,
fail_on_output=options.warnings_as_errors)
except build_utils.CalledProcessError as err:
debugging_link = ('\n\nR8 failed. Please see {}.'.format(
'https://chromium.googlesource.com/chromium/src/+/HEAD/build/'
'android/docs/java_optimization.md#Debugging-common-failures\n'))
raise build_utils.CalledProcessError(err.cwd, err.args,
err.output + debugging_link)
base_has_imported_lib = False
if options.desugar_jdk_libs_json:
logging.debug('Running L8')
existing_files = build_utils.FindInDirectory(base_context.staging_dir)
jdk_dex_output = os.path.join(base_context.staging_dir,
'classes%d.dex' % (len(existing_files) + 1))
# Use -applymapping to avoid name collisions.
l8_dynamic_config_path = os.path.join(tmp_dir, 'l8_dynamic_config.flags')
with open(l8_dynamic_config_path, 'w') as f:
f.write("-applymapping '{}'\n".format(tmp_mapping_path))
# Pass the dynamic config so that obfuscation options are picked up.
l8_config_paths = [dynamic_config_path, l8_dynamic_config_path]
if os.path.exists(options.desugared_library_keep_rule_output):
l8_config_paths.append(options.desugared_library_keep_rule_output)
base_has_imported_lib = dex_jdk_libs.DexJdkLibJar(
options.r8_path, options.min_api, options.desugar_jdk_libs_json,
options.desugar_jdk_libs_jar,
options.desugar_jdk_libs_configuration_jar, jdk_dex_output,
options.warnings_as_errors, l8_config_paths)
if int(options.min_api) >= 24 and base_has_imported_lib:
with open(jdk_dex_output, 'rb') as f:
dexfile = dex_parser.DexFile(bytearray(f.read()))
for m in dexfile.IterMethodSignatureParts():
print('{}#{}'.format(m[0], m[2]))
assert False, (
'Desugared JDK libs are disabled on Monochrome and newer - see '
'crbug.com/1159984 for details, and see above list for desugared '
'classes and methods.')
logging.debug('Collecting ouputs')
base_context.CreateOutput(base_has_imported_lib,
options.desugared_library_keep_rule_output)
for split_context in split_contexts_by_name.values():
if split_context is not base_context:
split_context.CreateOutput()
with open(options.mapping_output, 'w') as out_file, \
open(tmp_mapping_path) as in_file:
# Mapping files generated by R8 include comments that may break
# some of our tooling so remove those (specifically: apkanalyzer).
out_file.writelines(l for l in in_file if not l.startswith('#'))
return base_context
