/*

 * Copyright (c) 2015 SAP SE. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code 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 General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

/*

 * @test

 * @bug 8132475

 * @summary Check that jlink creates executables in the bin directory

 *          that are are executable by all users

 * @run main CheckExecutable

 * @author Volker Simonis

 */

import java.io.IOException;

import java.nio.file.*;

import java.nio.file.attribute.PosixFilePermission;

import static java.nio.file.attribute.PosixFilePermission.*;

import java.util.EnumSet;

import java.util.Set;

public class CheckExecutable {

    // The bin directory may contain non-executable files (see 8132704)

    private static final String IGNORE = "glob:{*.diz,jmc.ini}";

    public static void main(String args[]) throws IOException {

        String JAVA_HOME = System.getProperty("java.home");

        Path bin = Paths.get(JAVA_HOME, "bin");

        PathMatcher matcher = FileSystems.getDefault().getPathMatcher(IGNORE);

        try (DirectoryStream<Path> stream = Files.newDirectoryStream(bin)) {

            EnumSet<PosixFilePermission> execPerms

                = EnumSet.of(GROUP_EXECUTE, OTHERS_EXECUTE, OWNER_EXECUTE);

            for (Path entry : stream) {

                Path file = entry.getFileName();

                if (!Files.isRegularFile(entry) || matcher.matches(file)) {

                    continue;

                }

                if (!Files.isExecutable(entry))

                    throw new RuntimeException(entry + " is not executable!");

                try {

                    Set<PosixFilePermission> perm

                        = Files.getPosixFilePermissions(entry);

                    if (!perm.containsAll(execPerms)) {

                        throw new RuntimeException(entry

                            + " has not all executable permissions!\n"

                            + "Should have: " + execPerms + "\nbut has: " + perm);

                    }

                } catch (UnsupportedOperationException uoe) { }

            }

        }

    }

}