| // Copyright (C) 2014 The Android Open Source Project |
| // |
| // 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.gerrit.common; |
| |
| import org.eclipse.jgit.lib.Constants; |
| import org.eclipse.jgit.storage.file.FileBasedConfig; |
| import org.eclipse.jgit.util.IO; |
| |
| import java.io.File; |
| import java.io.FileNotFoundException; |
| import java.io.IOException; |
| import java.util.Arrays; |
| |
| public class FileUtil { |
| public static boolean modified(FileBasedConfig cfg) throws IOException { |
| byte[] curVers; |
| try { |
| curVers = IO.readFully(cfg.getFile()); |
| } catch (FileNotFoundException notFound) { |
| return true; |
| } |
| |
| byte[] newVers = Constants.encode(cfg.toText()); |
| return !Arrays.equals(curVers, newVers); |
| } |
| |
| public static void mkdir(final File path) { |
| if (!path.isDirectory() && !path.mkdir()) { |
| throw new Die("Cannot make directory " + path); |
| } |
| } |
| |
| public static void chmod(final int mode, final File path) { |
| path.setReadable(false, false /* all */); |
| path.setWritable(false, false /* all */); |
| path.setExecutable(false, false /* all */); |
| |
| path.setReadable((mode & 0400) == 0400, true /* owner only */); |
| path.setWritable((mode & 0200) == 0200, true /* owner only */); |
| if (path.isDirectory() || (mode & 0100) == 0100) { |
| path.setExecutable(true, true /* owner only */); |
| } |
| |
| if ((mode & 0044) == 0044) { |
| path.setReadable(true, false /* all */); |
| } |
| if ((mode & 0011) == 0011) { |
| path.setExecutable(true, false /* all */); |
| } |
| } |
| |
| private FileUtil() { |
| } |
| } |