| /* |
| * 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.util; |
| |
| import com.google.common.base.Charsets; |
| import com.google.common.base.Preconditions; |
| import com.google.common.io.Files; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.Properties; |
| |
| /** |
| * An injectable service for interacting with the filesystem. |
| */ |
| public class ProjectFilesystem { |
| |
| private final File projectRoot; |
| |
| public ProjectFilesystem(File projectRoot) { |
| this.projectRoot = Preconditions.checkNotNull(projectRoot); |
| Preconditions.checkArgument(projectRoot.isDirectory()); |
| } |
| |
| public File getProjectRoot() { |
| return projectRoot; |
| } |
| |
| public File getFileForRelativePath(String pathRelativeToProjectRoot) { |
| return pathRelativeToProjectRoot.isEmpty() |
| ? projectRoot |
| : new File(projectRoot, pathRelativeToProjectRoot); |
| } |
| |
| public boolean exists(String pathRelativeToProjectRoot) { |
| return getFileForRelativePath(pathRelativeToProjectRoot).exists(); |
| } |
| |
| public boolean isMatchingFileContents(Iterable<String> lines, String pathRelativeToProjectRoot) |
| throws IOException { |
| return MoreFiles.isMatchingFileContents(lines, |
| getFileForRelativePath(pathRelativeToProjectRoot)); |
| } |
| |
| public Properties readPropertiesFile(String pathToPropertiesFileRelativeToProjectRoot) |
| throws IOException { |
| Properties properties = new Properties(); |
| File propertiesFile = getFileForRelativePath(pathToPropertiesFileRelativeToProjectRoot); |
| properties.load(Files.newReader(propertiesFile, Charsets.UTF_8)); |
| return properties; |
| } |
| |
| /** |
| * Checks whether there is a normal file at the specified path. |
| */ |
| public boolean isFile(String pathRelativeToProjectRoot) { |
| return new File(pathRelativeToProjectRoot).isFile(); |
| } |
| } |