OsSpecificUtil.java
///////////////////////////////////////////////////////////////////////////////////////////////
// checkstyle: Checks Java source code and other text files for adherence to a set of rules.
// Copyright (C) 2001-2024 the original author or authors.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
///////////////////////////////////////////////////////////////////////////////////////////////
package com.puppycrawl.tools.checkstyle.utils;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
/**
* Class which provides OS related utilities.
*/
public final class OsSpecificUtil {
/**
* Hiding public and default constructor.
*/
private OsSpecificUtil() {
}
/**
* Updates the specified directory by resolving symbolic links, ensuring it exists,
* and creating any necessary parent directories. If the provided path is a symbolic
* link, it resolves it to the actual directory, throwing an IOException if the
* resolved path is not a directory. Creates directories if they do not exist.
*
* @param directory The path to the directory to be updated.
* @throws IOException If an I/O error occurs or if the resolved symbolic link is
* not a directory.
*/
public static void updateDirectory(Path directory) throws IOException {
Path targetDirectory = directory;
if (Files.isSymbolicLink(directory)) {
final Path actualDir = directory.toRealPath();
if (Files.isDirectory(actualDir)) {
targetDirectory = actualDir;
}
else {
throw new IOException("Resolved symbolic link "
+ directory + " is not a directory.");
}
}
Files.createDirectories(targetDirectory);
}
}