Files
build/ci/optimized_targets.py
Luca Farsi b24c1c3dbd Don't build targets if they're not used.
Add functionality in build_test_suites.py to not build targets if
their outputs are not used in the test configurations saved in the build
context. If none of the tests reference the targets' outputs they will
not be built at all.

Note that the corresponding flags will need to be enabled for these
optimizations to take place.

Test: atest optimized_targets_test
Bug: 348489774
Change-Id: I8f0ac90e75552ae80073f13229b026c7f23476a6
2024-08-02 14:45:36 -07:00

70 lines
1.8 KiB
Python

#
# Copyright 2024, The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from abc import ABC
class OptimizedBuildTarget(ABC):
"""A representation of an optimized build target.
This class will determine what targets to build given a given build_cotext and
will have a packaging function to generate any necessary output zips for the
build.
"""
def __init__(self, build_context, args):
self.build_context = build_context
self.args = args
def get_build_targets(self):
pass
def package_outputs(self):
pass
class NullOptimizer(OptimizedBuildTarget):
"""No-op target optimizer.
This will simply build the same target it was given and do nothing for the
packaging step.
"""
def __init__(self, target):
self.target = target
def get_build_targets(self):
return {self.target}
def package_outputs(self):
pass
def get_target_optimizer(target, enabled_flag, build_context, optimizer):
if enabled_flag in build_context['enabledBuildFeatures']:
return optimizer
return NullOptimizer(target)
# To be written as:
# 'target': lambda target, build_context, args: get_target_optimizer(
# target,
# 'target_enabled_flag',
# build_context,
# TargetOptimizer(build_context, args),
# )
OPTIMIZED_BUILD_TARGETS = dict()