| // Copyright 2018 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.test; |
| |
| import com.google.common.collect.ImmutableSet; |
| import com.google.devtools.build.lib.analysis.config.BuildOptions; |
| import com.google.devtools.build.lib.analysis.config.FragmentOptions; |
| import com.google.devtools.build.lib.analysis.config.transitions.NoTransition; |
| import com.google.devtools.build.lib.analysis.config.transitions.PatchTransition; |
| import com.google.devtools.build.lib.analysis.config.transitions.TransitionFactory; |
| import com.google.devtools.build.lib.analysis.test.TestConfiguration.TestOptions; |
| import com.google.devtools.build.lib.packages.Rule; |
| import com.google.devtools.build.lib.packages.RuleClass; |
| import com.google.devtools.common.options.Options; |
| import java.util.LinkedHashSet; |
| import java.util.Set; |
| |
| /** |
| * Trimming transition factory which removes the test config fragment when entering a non-test rule. |
| */ |
| public final class TestTrimmingTransitionFactory implements TransitionFactory<Rule> { |
| |
| private static final Set<String> TEST_OPTIONS = |
| ImmutableSet.copyOf(Options.getDefaults(TestOptions.class).asMap().keySet()); |
| |
| /** |
| * Trimming transition which removes the test config fragment if --trim_test_configuration is on. |
| */ |
| public enum TestTrimmingTransition implements PatchTransition { |
| INSTANCE; |
| |
| @Override |
| public BuildOptions patch(BuildOptions originalOptions) { |
| if (!originalOptions.contains(TestOptions.class)) { |
| // nothing to do, already trimmed this fragment |
| return originalOptions; |
| } |
| TestOptions originalTestOptions = originalOptions.get(TestOptions.class); |
| if (!originalTestOptions.trimTestConfiguration) { |
| // nothing to do, trimming is disabled |
| return originalOptions; |
| } |
| BuildOptions.Builder builder = BuildOptions.builder(); |
| for (FragmentOptions options : originalOptions.getNativeOptions()) { |
| if (!(options instanceof TestOptions)) { |
| builder.addFragmentOptions(options); |
| } |
| } |
| return builder.build(); |
| } |
| } |
| |
| @Override |
| public PatchTransition create(Rule rule) { |
| RuleClass ruleClass = rule.getRuleClassObject(); |
| if (ruleClass |
| .getConfigurationFragmentPolicy() |
| .isLegalConfigurationFragment(TestConfiguration.class)) { |
| // Test rule; no need to trim here. |
| return NoTransition.INSTANCE; |
| } |
| |
| Set<String> referencedTestOptions = |
| new LinkedHashSet<String>(ruleClass.getOptionReferenceFunction().apply(rule)); |
| referencedTestOptions.retainAll(TEST_OPTIONS); |
| if (!referencedTestOptions.isEmpty()) { |
| // Test-option-referencing config_setting; no need to trim here. |
| return NoTransition.INSTANCE; |
| } |
| |
| // Non-test rule. Trim it! |
| return TestTrimmingTransition.INSTANCE; |
| } |
| } |