| // Copyright 2015 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.skyframe; |
| |
| import com.google.devtools.build.lib.analysis.BlazeDirectories; |
| import com.google.devtools.build.lib.analysis.ConfiguredRuleClassProvider; |
| import com.google.devtools.build.lib.analysis.config.BuildConfigurationValue; |
| import com.google.devtools.build.lib.analysis.config.FragmentFactory; |
| import com.google.devtools.build.lib.analysis.config.InvalidConfigurationException; |
| import com.google.devtools.build.lib.cmdline.RepositoryName; |
| import com.google.devtools.build.lib.packages.RuleClassProvider; |
| import com.google.devtools.build.lib.packages.semantics.BuildLanguageOptions; |
| import com.google.devtools.build.skyframe.SkyFunction; |
| import com.google.devtools.build.skyframe.SkyFunctionException; |
| import com.google.devtools.build.skyframe.SkyKey; |
| import com.google.devtools.build.skyframe.SkyValue; |
| import net.starlark.java.eval.StarlarkSemantics; |
| |
| /** A builder for {@link BuildConfigurationValue} instances. */ |
| public final class BuildConfigurationFunction implements SkyFunction { |
| |
| private final BlazeDirectories directories; |
| private final ConfiguredRuleClassProvider ruleClassProvider; |
| private final FragmentFactory fragmentFactory = new FragmentFactory(); |
| |
| public BuildConfigurationFunction( |
| BlazeDirectories directories, RuleClassProvider ruleClassProvider) { |
| this.directories = directories; |
| this.ruleClassProvider = (ConfiguredRuleClassProvider) ruleClassProvider; |
| } |
| |
| @Override |
| public SkyValue compute(SkyKey skyKey, Environment env) |
| throws InterruptedException, BuildConfigurationFunctionException { |
| WorkspaceNameValue workspaceNameValue = (WorkspaceNameValue) env |
| .getValue(WorkspaceNameValue.key()); |
| if (workspaceNameValue == null) { |
| return null; |
| } |
| |
| StarlarkSemantics starlarkSemantics = PrecomputedValue.STARLARK_SEMANTICS.get(env); |
| if (starlarkSemantics == null) { |
| return null; |
| } |
| |
| BuildConfigurationKey key = (BuildConfigurationKey) skyKey.argument(); |
| try { |
| return BuildConfigurationValue.create( |
| key.getOptions(), |
| RepositoryName.createFromValidStrippedName(workspaceNameValue.getName()), |
| starlarkSemantics.getBool(BuildLanguageOptions.EXPERIMENTAL_SIBLING_REPOSITORY_LAYOUT), |
| // Arguments below this are server-global. |
| directories, |
| ruleClassProvider, |
| fragmentFactory); |
| } catch (InvalidConfigurationException e) { |
| throw new BuildConfigurationFunctionException(e); |
| } |
| } |
| |
| private static final class BuildConfigurationFunctionException extends SkyFunctionException { |
| BuildConfigurationFunctionException(InvalidConfigurationException e) { |
| super(e, Transience.PERSISTENT); |
| } |
| } |
| } |