| // Copyright 2016 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.java.proto; |
| |
| import static com.google.devtools.build.lib.bazel.rules.java.proto.BazelJavaLiteProtoAspect.DEFAULT_PROTO_TOOLCHAIN_LABEL; |
| import static com.google.devtools.build.lib.packages.Attribute.attr; |
| import static com.google.devtools.build.lib.packages.BuildType.LABEL; |
| import static com.google.devtools.build.lib.packages.BuildType.LABEL_LIST; |
| import static com.google.devtools.build.lib.packages.Type.BOOLEAN; |
| import static com.google.devtools.build.lib.rules.java.proto.JavaLiteProtoAspect.getProtoToolchainLabel; |
| |
| import com.google.common.collect.ImmutableList; |
| import com.google.devtools.build.lib.analysis.BaseRuleClasses; |
| import com.google.devtools.build.lib.analysis.RuleDefinition; |
| import com.google.devtools.build.lib.analysis.RuleDefinitionEnvironment; |
| import com.google.devtools.build.lib.analysis.TransitiveInfoProvider; |
| import com.google.devtools.build.lib.packages.RuleClass; |
| import com.google.devtools.build.lib.packages.SkylarkProviderIdentifier; |
| import com.google.devtools.build.lib.rules.java.JavaConfiguration; |
| import com.google.devtools.build.lib.rules.java.JavaInfo; |
| import com.google.devtools.build.lib.rules.java.JavaRuleClasses.JavaHostRuntimeBaseRule; |
| import com.google.devtools.build.lib.rules.java.JavaRuleClasses.JavaToolchainBaseRule; |
| import com.google.devtools.build.lib.rules.java.proto.JavaLiteProtoLibrary; |
| import com.google.devtools.build.lib.rules.java.proto.JavaProtoAspectCommon; |
| import com.google.devtools.build.lib.rules.proto.ProtoLangToolchainProvider; |
| |
| /** Declaration of the {@code java_lite_proto_library} rule. */ |
| public class BazelJavaLiteProtoLibraryRule implements RuleDefinition { |
| |
| private final BazelJavaLiteProtoAspect javaProtoAspect; |
| |
| public BazelJavaLiteProtoLibraryRule(BazelJavaLiteProtoAspect javaProtoAspect) { |
| this.javaProtoAspect = javaProtoAspect; |
| } |
| |
| @Override |
| public RuleClass build(RuleClass.Builder builder, RuleDefinitionEnvironment environment) { |
| return builder |
| .requiresConfigurationFragments(JavaConfiguration.class) |
| /* <!-- #BLAZE_RULE(java_lite_proto_library).ATTRIBUTE(deps) --> |
| The list of <a href="protocol-buffer.html#proto_library"><code>proto_library</code></a> |
| rules to generate Java code for. |
| <!-- #END_BLAZE_RULE.ATTRIBUTE --> */ |
| .override( |
| attr("deps", LABEL_LIST) |
| .allowedRuleClasses("proto_library") |
| .allowedFileTypes() |
| .aspect(javaProtoAspect)) |
| .add(attr("strict_deps", BOOLEAN).value(true).undocumented("for migration")) |
| .add( |
| attr(JavaProtoAspectCommon.LITE_PROTO_TOOLCHAIN_ATTR, LABEL) |
| .mandatoryNativeProviders( |
| ImmutableList.<Class<? extends TransitiveInfoProvider>>of( |
| ProtoLangToolchainProvider.class)) |
| .value(getProtoToolchainLabel(DEFAULT_PROTO_TOOLCHAIN_LABEL))) |
| .advertiseSkylarkProvider(SkylarkProviderIdentifier.forKey(JavaInfo.PROVIDER.getKey())) |
| .build(); |
| } |
| |
| @Override |
| public Metadata getMetadata() { |
| return RuleDefinition.Metadata.builder() |
| .name("java_lite_proto_library") |
| .factoryClass(JavaLiteProtoLibrary.class) |
| .ancestors( |
| BaseRuleClasses.RuleBase.class, |
| JavaToolchainBaseRule.class, |
| JavaHostRuntimeBaseRule.class) |
| .build(); |
| } |
| } |
| |
| /*<!-- #BLAZE_RULE (NAME = java_lite_proto_library, TYPE = LIBRARY, FAMILY = Java) --> |
| |
| <p> |
| <code>java_lite_proto_library</code> generates Java code from <code>.proto</code> files. |
| </p> |
| |
| <p> |
| <code>deps</code> must point to <a href="protocol-buffer.html#proto_library"><code>proto_library |
| </code></a> rules. |
| </p> |
| |
| <p> |
| Example: |
| </p> |
| |
| <pre class="code"> |
| java_library( |
| name = "lib", |
| deps = [":foo"], |
| ) |
| |
| java_lite_proto_library( |
| name = "foo", |
| deps = [":bar"], |
| ) |
| |
| proto_library( |
| name = "bar", |
| ) |
| </pre> |
| |
| |
| <!-- #END_BLAZE_RULE -->*/ |