| /* |
| * Copyright 2013-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.java; |
| |
| import com.facebook.buck.model.BuildTarget; |
| import com.facebook.buck.rules.AbstractBuildRuleBuilderParams; |
| import com.facebook.buck.rules.AbstractBuildable; |
| import com.facebook.buck.rules.BuildContext; |
| import com.facebook.buck.rules.BuildRuleParams; |
| import com.facebook.buck.rules.BuildRuleResolver; |
| import com.facebook.buck.rules.BuildRuleType; |
| import com.facebook.buck.rules.Buildable; |
| import com.facebook.buck.rules.BuildableContext; |
| import com.facebook.buck.step.Step; |
| import com.facebook.buck.step.fs.MkdirStep; |
| import com.facebook.buck.step.fs.RmStep; |
| import com.facebook.buck.util.BuckConstant; |
| import com.google.common.base.Preconditions; |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.ImmutableSortedSet; |
| |
| import java.io.IOException; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| import java.util.List; |
| |
| /** |
| * {@link Buildable} that writes the list of {@code .class} files found in a zip or directory to a |
| * file. |
| */ |
| public class AccumulateClassNames extends AbstractBuildable { |
| |
| private final JavaLibraryRule javaLibraryRule; |
| private final Path pathToOutputFile; |
| |
| private AccumulateClassNames(BuildTarget buildTarget, JavaLibraryRule javaLibraryRule) { |
| Preconditions.checkNotNull(buildTarget); |
| this.javaLibraryRule = Preconditions.checkNotNull(javaLibraryRule); |
| this.pathToOutputFile = Paths.get( |
| BuckConstant.GEN_DIR, |
| buildTarget.getBasePath(), |
| buildTarget.getShortName() + ".classes.txt"); |
| } |
| |
| @Override |
| public Iterable<String> getInputsToCompareToOutput() { |
| // The deps of this rule already capture all of the inputs that should affect the cache key. |
| return ImmutableSortedSet.of(); |
| } |
| |
| @Override |
| public String getPathToOutputFile() { |
| return pathToOutputFile.toString(); |
| } |
| |
| @Override |
| public List<Step> getBuildSteps(BuildContext context, BuildableContext buildableContext) |
| throws IOException { |
| ImmutableList.Builder<Step> steps = ImmutableList.builder(); |
| |
| steps.add(new RmStep(getPathToOutputFile(), /* shouldForceDeletion */ true)); |
| |
| // Make sure that the output directory exists for the output file. |
| steps.add(new MkdirStep(pathToOutputFile.getParent())); |
| |
| steps.add(new AccumulateClassNamesStep( |
| Paths.get(javaLibraryRule.getPathToOutputFile()), |
| Paths.get(getPathToOutputFile()))); |
| |
| return steps.build(); |
| } |
| |
| public static Builder newAccumulateClassNamesBuilder(AbstractBuildRuleBuilderParams params) { |
| return new Builder(params); |
| } |
| |
| public static class Builder extends AbstractBuildable.Builder { |
| |
| private JavaLibraryRule javaLibraryRule; |
| |
| private Builder(AbstractBuildRuleBuilderParams params) { |
| super(params); |
| } |
| |
| @Override |
| protected BuildRuleType getType() { |
| return BuildRuleType._CLASS_NAMES; |
| } |
| |
| @Override |
| protected AccumulateClassNames newBuildable(BuildRuleParams params, |
| BuildRuleResolver resolver) { |
| return new AccumulateClassNames(params.getBuildTarget(), javaLibraryRule); |
| } |
| |
| public Builder setJavaLibraryToDex(JavaLibraryRule javaLibraryRule) { |
| this.javaLibraryRule = javaLibraryRule; |
| this.addDep(javaLibraryRule.getBuildTarget()); |
| return this; |
| } |
| |
| } |
| } |