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Add
--experimental_output_directory_naming_scheme with two modes.
The `legacy` mode retains pre-existing behavior for determining the ST hash value by tracking an `affected by starlark transition` list and consuming it. The new `diff_against_baseline` mode determines the ST hash value by diffing the current configuration against the build's baseline configuration (currently, the configuration used to prime all top-level targets). Note that this mode specifically turns off tracking the `affected by starlark transition` for performance reasons (see linked bug for details). Related github issue: bazelbuild#14023 PiperOrigin-RevId: 433882310
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69
src/main/java/com/google/devtools/build/lib/analysis/config/OptionInfo.java
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| // Copyright 2022 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. | ||
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| package com.google.devtools.build.lib.analysis.config; | ||
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| import static com.google.common.collect.ImmutableSet.toImmutableSet; | ||
| import static java.util.Arrays.stream; | ||
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| import com.google.common.collect.ImmutableList; | ||
| import com.google.common.collect.ImmutableMap; | ||
| import com.google.common.collect.ImmutableSet; | ||
| import com.google.devtools.common.options.OptionDefinition; | ||
| import com.google.devtools.common.options.OptionMetadataTag; | ||
| import com.google.devtools.common.options.OptionsParser; | ||
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| /** Stores information about a build option gathered via reflection. */ | ||
| public final class OptionInfo { | ||
| private final Class<? extends FragmentOptions> optionClass; | ||
| private final OptionDefinition definition; | ||
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| private OptionInfo(Class<? extends FragmentOptions> optionClass, OptionDefinition definition) { | ||
| this.optionClass = optionClass; | ||
| this.definition = definition; | ||
| } | ||
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| public Class<? extends FragmentOptions> getOptionClass() { | ||
| return optionClass; | ||
| } | ||
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| public OptionDefinition getDefinition() { | ||
| return definition; | ||
| } | ||
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| public boolean hasOptionMetadataTag(OptionMetadataTag tag) { | ||
| return stream(getDefinition().getOptionMetadataTags()).anyMatch(tag::equals); | ||
| } | ||
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| /** For all the options in the BuildOptions, build a map from option name to its information. */ | ||
| public static ImmutableMap<String, OptionInfo> buildMapFrom(BuildOptions buildOptions) { | ||
| ImmutableMap.Builder<String, OptionInfo> builder = new ImmutableMap.Builder<>(); | ||
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| ImmutableSet<Class<? extends FragmentOptions>> optionClasses = | ||
| buildOptions.getNativeOptions().stream() | ||
| .map(FragmentOptions::getClass) | ||
| .collect(toImmutableSet()); | ||
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| for (Class<? extends FragmentOptions> optionClass : optionClasses) { | ||
| ImmutableList<OptionDefinition> optionDefinitions = | ||
| OptionsParser.getOptionDefinitions(optionClass); | ||
| for (OptionDefinition def : optionDefinitions) { | ||
| String optionName = def.getOptionName(); | ||
| builder.put(optionName, new OptionInfo(optionClass, def)); | ||
| } | ||
| } | ||
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| return builder.build(); | ||
| } | ||
| } |
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