| /* |
| * Copyright 2012-present Facebook, Inc. |
| * |
| * 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.facebook.buck.rules; |
| |
| import com.facebook.buck.model.BuildTarget; |
| import com.facebook.buck.model.BuildTargetPattern; |
| import com.facebook.buck.step.Step; |
| import com.facebook.buck.util.DefaultDirectoryTraverser; |
| import com.facebook.buck.util.DirectoryTraverser; |
| import com.google.common.base.Preconditions; |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.ImmutableSortedSet; |
| |
| import java.io.IOException; |
| import java.util.List; |
| import java.util.Map; |
| |
| import javax.annotation.Nullable; |
| |
| |
| /** |
| * An object that represents the resources prebuilt native library. |
| * <p> |
| * Suppose this were a rule defined in <code>src/com/facebook/feed/BUILD</code>: |
| * <pre> |
| * prebuild_native_library( |
| * name = 'face_dot_com', |
| * native_libs = 'nativelibs', |
| * ) |
| * </pre> |
| */ |
| public class PrebuiltNativeLibraryBuildRule extends AbstractCachingBuildRule { |
| |
| private final DirectoryTraverser directoryTraverser; |
| |
| private final String nativeLibs; |
| |
| protected PrebuiltNativeLibraryBuildRule(BuildRuleParams buildRuleParams, |
| String nativeLibs, |
| DirectoryTraverser directoryTraverser) { |
| super(buildRuleParams); |
| this.directoryTraverser = Preconditions.checkNotNull(directoryTraverser); |
| this.nativeLibs = nativeLibs; |
| } |
| |
| @Override |
| protected RuleKey.Builder ruleKeyBuilder() { |
| return super.ruleKeyBuilder() |
| .set("nativeLibs", nativeLibs); |
| } |
| |
| @Override |
| protected Iterable<String> getInputsToCompareToOutput(BuildContext context) { |
| ImmutableSortedSet.Builder<String> inputsToConsiderForCachingPurposes = ImmutableSortedSet |
| .naturalOrder(); |
| |
| addInputsToSortedSet(nativeLibs, inputsToConsiderForCachingPurposes, directoryTraverser); |
| |
| return inputsToConsiderForCachingPurposes.build(); |
| } |
| |
| @Override |
| protected List<Step> buildInternal(BuildContext context) |
| throws IOException { |
| // We're checking in prebuilt libraries for now, so this is a noop. |
| return ImmutableList.of(); |
| } |
| |
| public String getNativeLibs() { |
| return nativeLibs; |
| } |
| |
| @Override |
| public BuildRuleType getType() { |
| return BuildRuleType.PREBUILT_NATIVE_LIBRARY; |
| } |
| |
| public static Builder newPrebuiltNativeLibrary() { |
| return new Builder(); |
| } |
| |
| public static class Builder extends AbstractBuildRuleBuilder { |
| |
| @Nullable |
| private String nativeLibs = null; |
| |
| private Builder() {} |
| |
| @Override |
| public PrebuiltNativeLibraryBuildRule build(Map<String, BuildRule> buildRuleIndex) { |
| return new PrebuiltNativeLibraryBuildRule(createBuildRuleParams(buildRuleIndex), |
| nativeLibs, |
| new DefaultDirectoryTraverser()); |
| } |
| |
| @Override |
| public Builder setBuildTarget(BuildTarget buildTarget) { |
| super.setBuildTarget(buildTarget); |
| return this; |
| } |
| |
| @Override |
| public Builder addDep(String dep) { |
| super.addDep(dep); |
| return this; |
| } |
| |
| @Override |
| public Builder addVisibilityPattern(BuildTargetPattern visibilityPattern) { |
| super.addVisibilityPattern(visibilityPattern); |
| return this; |
| } |
| |
| public Builder setNativeLibsDirectory(String nativeLibs) { |
| this.nativeLibs = nativeLibs; |
| return this; |
| } |
| } |
| } |