| /* |
| * 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.rules; |
| |
| import com.facebook.buck.util.DirectoryTraverser; |
| import com.facebook.buck.util.DirectoryTraversers; |
| import com.google.common.collect.ImmutableSortedSet; |
| |
| import java.io.IOException; |
| import java.util.Set; |
| |
| import javax.annotation.Nullable; |
| |
| /** |
| * Utility methods for {@link Buildable} objects. |
| */ |
| public class Buildables { |
| |
| /** Utility class: do not instantiate. */ |
| private Buildables() {} |
| |
| // TODO(mbolin): Remove or rewrite this. Code in an integration test that used this method was |
| // discovered to break things because it did not relative paths relative to the project root |
| // correctly. |
| /** |
| * Helper function for {@link Buildable}s to create their lists of files for caching. |
| */ |
| public static void addInputsToSortedSet(@Nullable String pathToDirectory, |
| ImmutableSortedSet.Builder<String> inputsToConsiderForCachingPurposes, |
| DirectoryTraverser traverser) { |
| if (pathToDirectory == null) { |
| return; |
| } |
| |
| Set<String> files; |
| try { |
| files = DirectoryTraversers.getInstance().findFiles(pathToDirectory, traverser); |
| } catch (IOException e) { |
| throw new RuntimeException("Exception while traversing " + pathToDirectory + ".", e); |
| } |
| |
| inputsToConsiderForCachingPurposes.addAll(files); |
| } |
| |
| } |