| // 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.rules.apple; |
| |
| import com.google.common.collect.ImmutableMap; |
| import com.google.devtools.build.lib.actions.MutableActionGraph.ActionConflictException; |
| import com.google.devtools.build.lib.analysis.AliasProvider; |
| import com.google.devtools.build.lib.analysis.BaseRuleClasses; |
| import com.google.devtools.build.lib.analysis.ConfiguredTarget; |
| import com.google.devtools.build.lib.analysis.RuleConfiguredTargetFactory; |
| import com.google.devtools.build.lib.analysis.RuleContext; |
| import com.google.devtools.build.lib.analysis.RuleDefinition; |
| import com.google.devtools.build.lib.analysis.RuleDefinitionEnvironment; |
| import com.google.devtools.build.lib.analysis.VisibilityProvider; |
| import com.google.devtools.build.lib.analysis.VisibilityProviderImpl; |
| import com.google.devtools.build.lib.analysis.configuredtargets.RuleConfiguredTarget.Mode; |
| import com.google.devtools.build.lib.packages.RuleClass; |
| import com.google.devtools.build.lib.rules.AliasConfiguredTarget; |
| |
| /** |
| * Implementation of the {@code xcode_config_alias} rule. |
| * |
| * <p>This rule is an alias to the {@code xcode_config} rule currently in use, which is in turn |
| * depends on the current configuration, in particular, the value of the {@code |
| * --xcode_version_config} flag. |
| */ |
| public class XcodeConfigAlias implements RuleConfiguredTargetFactory { |
| @Override |
| public ConfiguredTarget create(RuleContext ruleContext) |
| throws InterruptedException, RuleErrorException, ActionConflictException { |
| ConfiguredTarget actual = (ConfiguredTarget) ruleContext.getPrerequisite( |
| XcodeConfigRule.XCODE_CONFIG_ATTR_NAME, Mode.TARGET); |
| return new AliasConfiguredTarget( |
| ruleContext, |
| actual, |
| ImmutableMap.of( |
| AliasProvider.class, |
| AliasProvider.fromAliasRule(ruleContext.getLabel(), actual), |
| VisibilityProvider.class, |
| new VisibilityProviderImpl(ruleContext.getVisibility()))); |
| } |
| |
| /** |
| * Rule definition for the {@code xcode_config_alias} rule. |
| * |
| * <p>This rule is an alias to the {@code xcode_config} rule currently in use, which is in turn |
| * depends on the current configuration, in particular, the value of the {@code |
| * --xcode_version_config} flag. |
| * |
| * <p>This is intentionally undocumented for users; the workspace is expected to contain exactly |
| * one instance of this rule under {@code @bazel_tools//tools/osx} and people who want to get data |
| * this rule provides should depend on that one. |
| */ |
| public static class XcodeConfigAliasRule implements RuleDefinition { |
| |
| @Override |
| public RuleClass build(RuleClass.Builder builder, RuleDefinitionEnvironment environment) { |
| return builder |
| .requiresConfigurationFragments(AppleConfiguration.class) |
| .removeAttribute("licenses") |
| .removeAttribute("distribs") |
| .build(); |
| } |
| |
| @Override |
| public Metadata getMetadata() { |
| return Metadata.builder() |
| .name("xcode_config_alias") |
| .ancestors(BaseRuleClasses.BaseRule.class, AppleToolchain.RequiresXcodeConfigRule.class) |
| .factoryClass(XcodeConfigAlias.class) |
| .build(); |
| } |
| } |
| } |