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#!/usr/bin/env python3
# Copyright 2020 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.
# Lint as: python3
"""Prints out available java targets.
Examples:
# List GN target for bundles:
build/android/list_java_targets.py -C out/Default --type android_app_bundle \
--gn-labels
# List all android targets with types:
build/android/list_java_targets.py -C out/Default --print-types
# Build all apk targets:
build/android/list_java_targets.py -C out/Default --type android_apk | xargs \
autoninja -C out/Default
# Show how many of each target type exist:
build/android/list_java_targets.py -C out/Default --stats
"""
import argparse
import collections
import json
import logging
import os
import subprocess
import sys
_SRC_ROOT = os.path.normpath(os.path.join(os.path.dirname(__file__), '..',
'..'))
sys.path.append(os.path.join(_SRC_ROOT, 'build', 'android'))
from pylib import constants
_AUTONINJA_PATH = os.path.join(_SRC_ROOT, 'third_party', 'depot_tools',
'autoninja')
_NINJA_PATH = os.path.join(_SRC_ROOT, 'third_party', 'depot_tools', 'ninja')
_VALID_TYPES = (
'android_apk',
'android_app_bundle',
'android_app_bundle_module',
'android_assets',
'android_resources',
'dist_aar',
'dist_jar',
'group',
'java_annotation_processor',
'java_binary',
'java_library',
'junit_binary',
'system_java_library',
)
def _run_ninja(output_dir, args):
cmd = [
_AUTONINJA_PATH,
'-C',
output_dir,
]
cmd.extend(args)
logging.info('Running: %r', cmd)
subprocess.run(cmd, check=True, stdout=sys.stderr)
def _query_for_build_config_targets(output_dir):
# Query ninja rather than GN since it's faster.
cmd = [_NINJA_PATH, '-C', output_dir, '-t', 'targets']
logging.info('Running: %r', cmd)
ninja_output = subprocess.run(cmd,
check=True,
capture_output=True,
encoding='ascii').stdout
ret = []
SUFFIX = '__build_config_crbug_908819'
SUFFIX_LEN = len(SUFFIX)
for line in ninja_output.splitlines():
ninja_target = line.rsplit(':', 1)[0]
# Ignore root aliases by ensuring a : exists.
if ':' in ninja_target and ninja_target.endswith(SUFFIX):
ret.append(f'//{ninja_target[:-SUFFIX_LEN]}')
return ret
class _TargetEntry(object):
def __init__(self, gn_target):
assert gn_target.startswith('//'), f'{gn_target} does not start with //'
assert ':' in gn_target, f'Non-root {gn_target} required'
self.gn_target = gn_target
self._build_config = None
@property
def ninja_target(self):
return self.gn_target[2:]
@property
def ninja_build_config_target(self):
return self.ninja_target + '__build_config_crbug_908819'
@property
def build_config_path(self):
"""Returns the filepath of the project's .build_config.json."""
ninja_target = self.ninja_target
# Support targets at the root level. e.g. //:foo
if ninja_target[0] == ':':
ninja_target = ninja_target[1:]
subpath = ninja_target.replace(':', os.path.sep) + '.build_config.json'
return os.path.join(constants.GetOutDirectory(), 'gen', subpath)
def build_config(self):
"""Reads and returns the project's .build_config.json JSON."""
if not self._build_config:
with open(self.build_config_path) as jsonfile:
self._build_config = json.load(jsonfile)
return self._build_config
def get_type(self):
"""Returns the target type from its .build_config.json."""
return self.build_config()['deps_info']['type']
def proguard_enabled(self):
"""Returns whether proguard runs for this target."""
# Modules set proguard_enabled, but the proguarding happens only once at the
# bundle level.
if self.get_type() == 'android_app_bundle_module':
return False
return self.build_config()['deps_info'].get('proguard_enabled', False)
def main():
parser = argparse.ArgumentParser(
description=__doc__, formatter_class=argparse.RawDescriptionHelpFormatter)
parser.add_argument('-C',
'--output-directory',
help='If outdir is not provided, will attempt to guess.')
parser.add_argument('--gn-labels',
action='store_true',
help='Print GN labels rather than ninja targets')
parser.add_argument(
'--nested',
action='store_true',
help='Do not convert nested targets to their top-level equivalents. '
'E.g. Without this, foo_test__apk -> foo_test')
parser.add_argument('--print-types',
action='store_true',
help='Print type of each target')
parser.add_argument(
'--print-build-config-paths',
action='store_true',
help='Print path to the .build_config.json of each target')
parser.add_argument('--build',
action='store_true',
help='Build all .build_config.json files.')
parser.add_argument('--type',
action='append',
help='Restrict to targets of given type',
choices=_VALID_TYPES)
parser.add_argument('--stats',
action='store_true',
help='Print counts of each target type.')
parser.add_argument('--proguard-enabled',
action='store_true',
help='Restrict to targets that have proguard enabled')
parser.add_argument('-v', '--verbose', default=0, action='count')
args = parser.parse_args()
args.build |= bool(args.type or args.proguard_enabled or args.print_types
or args.stats)
logging.basicConfig(level=logging.WARNING - (10 * args.verbose),
format='%(levelname).1s %(relativeCreated)6d %(message)s')
if args.output_directory:
constants.SetOutputDirectory(args.output_directory)
constants.CheckOutputDirectory()
output_dir = constants.GetOutDirectory()
# Query ninja for all __build_config_crbug_908819 targets.
targets = _query_for_build_config_targets(output_dir)
entries = [_TargetEntry(t) for t in targets]
if args.build:
logging.warning('Building %d .build_config.json files...', len(entries))
_run_ninja(output_dir, [e.ninja_build_config_target for e in entries])
if args.type:
entries = [e for e in entries if e.get_type() in args.type]
if args.proguard_enabled:
entries = [e for e in entries if e.proguard_enabled()]
if args.stats:
counts = collections.Counter(e.get_type() for e in entries)
for entry_type, count in sorted(counts.items()):
print(f'{entry_type}: {count}')
else:
for e in entries:
if args.gn_labels:
to_print = e.gn_target
else:
to_print = e.ninja_target
# Convert to top-level target
if not args.nested:
to_print = to_print.replace('__test_apk', '').replace('__apk', '')
if args.print_types:
to_print = f'{to_print}: {e.get_type()}'
elif args.print_build_config_paths:
to_print = f'{to_print}: {e.build_config_path}'
print(to_print)
if __name__ == '__main__':
main()
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