| // 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.bazel.rules; |
| |
| import com.google.common.collect.ImmutableList; |
| import com.google.devtools.build.lib.analysis.ConfiguredRuleClassProvider; |
| import com.google.devtools.build.lib.analysis.ConfiguredRuleClassProvider.RuleSet; |
| import com.google.devtools.build.lib.analysis.constraints.EnvironmentRule; |
| import com.google.devtools.build.lib.bazel.rules.common.BazelFilegroupRule; |
| import com.google.devtools.build.lib.rules.Alias.AliasRule; |
| import com.google.devtools.build.lib.rules.core.CoreRules; |
| import com.google.devtools.build.lib.rules.genquery.GenQueryRule; |
| import com.google.devtools.build.lib.rules.test.TestSuiteRule; |
| import com.google.devtools.build.lib.util.ResourceFileLoader; |
| import java.io.IOException; |
| |
| /** |
| * A set of generic rules that provide miscellaneous capabilities to Bazel. |
| */ |
| public class GenericRules implements RuleSet { |
| public static final GenericRules INSTANCE = new GenericRules(); |
| |
| private GenericRules() { |
| // Use the static INSTANCE field instead. |
| } |
| |
| @Override |
| public void init(ConfiguredRuleClassProvider.Builder builder) { |
| builder.addRuleDefinition(new EnvironmentRule()); |
| |
| builder.addRuleDefinition(new AliasRule()); |
| builder.addRuleDefinition(new BazelFilegroupRule()); |
| builder.addRuleDefinition(new TestSuiteRule()); |
| builder.addRuleDefinition(new GenQueryRule()); |
| |
| try { |
| builder.addWorkspaceFilePrefix( |
| ResourceFileLoader.loadResource(BazelRuleClassProvider.class, "tools.WORKSPACE") |
| // Hackily select the java_toolchain based on the host JDK version. JDK 8 and |
| // 9 host_javabases require different toolchains, e.g. to use --patch-module |
| // instead of -Xbootclasspath/p:. |
| .replace( |
| "%java_toolchain%", |
| isJdk8OrEarlier() |
| ? "@bazel_tools//tools/jdk:toolchain_hostjdk8" |
| : "@bazel_tools//tools/jdk:toolchain_hostjdk9")); |
| |
| } catch (IOException e) { |
| throw new IllegalStateException(e); |
| } |
| } |
| |
| @Override |
| public ImmutableList<RuleSet> requires() { |
| return ImmutableList.of(CoreRules.INSTANCE); |
| } |
| |
| private static boolean isJdk8OrEarlier() { |
| return Double.parseDouble(System.getProperty("java.class.version")) <= 52.0; |
| } |
| } |