| // Copyright 2017 The Bazel Authors. All rights reserved. |
| // |
| // 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. |
| |
| package com.google.devtools.build.lib.analysis; |
| |
| import com.google.common.collect.ImmutableSet; |
| import com.google.devtools.build.lib.analysis.config.BuildConfiguration; |
| import com.google.devtools.build.lib.analysis.config.BuildOptions; |
| import com.google.devtools.build.lib.analysis.config.ConfigurationEnvironment; |
| import com.google.devtools.build.lib.analysis.config.ConfigurationFragmentFactory; |
| import com.google.devtools.build.lib.analysis.config.FragmentOptions; |
| import com.google.devtools.build.lib.analysis.config.InvalidConfigurationException; |
| import com.google.devtools.build.lib.analysis.config.PatchTransition; |
| import com.google.devtools.build.lib.packages.Target; |
| |
| /** |
| * Grab bag file for test configuration fragments and fragment factories. |
| */ |
| public class TestConfigFragments { |
| /** |
| * A {@link PatchTransition} that appends a given value to {@link |
| * BuildConfiguration.Options#hostCpu}. |
| */ |
| private static class HostCpuTransition implements PatchTransition { |
| |
| private final String patchMessage; |
| |
| HostCpuTransition(String patchMessage) { |
| this.patchMessage = patchMessage; |
| } |
| |
| @Override |
| public BuildOptions apply(BuildOptions options) { |
| BuildOptions toOptions = options.clone(); |
| BuildConfiguration.Options coreOptions = |
| toOptions.get(BuildConfiguration.Options.class); |
| String prefix = coreOptions.hostCpu.startsWith("$") ? coreOptions.hostCpu : ""; |
| coreOptions.hostCpu = prefix + "$" + patchMessage; |
| return toOptions; |
| } |
| } |
| |
| /** |
| * A {@link ConfigurationFragmentFactory} that trivially returns a given fragment. |
| */ |
| private static class SimpleFragmentFactory implements ConfigurationFragmentFactory { |
| private final BuildConfiguration.Fragment fragment; |
| |
| public SimpleFragmentFactory(BuildConfiguration.Fragment fragment) { |
| this.fragment = fragment; |
| } |
| |
| @Override |
| public BuildConfiguration.Fragment create(ConfigurationEnvironment env, |
| BuildOptions buildOptions) throws InvalidConfigurationException { |
| return fragment; |
| } |
| |
| @Override |
| public Class<? extends BuildConfiguration.Fragment> creates() { |
| return fragment.getClass(); |
| } |
| |
| @Override |
| public ImmutableSet<Class<? extends FragmentOptions>> requiredOptions() { |
| return ImmutableSet.<Class<? extends FragmentOptions>>of(); |
| } |
| } |
| |
| /** Factory for a test fragment with a top-level configuration hook. */ |
| public static SimpleFragmentFactory FragmentWithTopLevelConfigHook1Factory = |
| new SimpleFragmentFactory( |
| new BuildConfiguration.Fragment() { |
| @Override |
| public PatchTransition topLevelConfigurationHook(Target toTarget) { |
| return new HostCpuTransition("CONFIG HOOK 1"); |
| } |
| }); |
| |
| /** Factory for a test fragment with a top-level configuration hook. */ |
| public static SimpleFragmentFactory FragmentWithTopLevelConfigHook2Factory = |
| // The anonymous class definition for the BuildConfiguration.Fragment needs to be different |
| // than the one of its peer above. This is because Bazel indexes configuration fragments |
| // by class name. So we need to make sure all fragment definitions retain distinct class |
| // names (i.e. "TestConfigFragments$1", "TestConfigFragments$2", etc). |
| new SimpleFragmentFactory( |
| new BuildConfiguration.Fragment() { |
| @Override |
| public PatchTransition topLevelConfigurationHook(Target toTarget) { |
| return new HostCpuTransition("CONFIG HOOK 2"); |
| } |
| }); |
| } |