| /* |
| * Copyright (C) 2010, Robin Rosenberg |
| * and other copyright owners as documented in the project's IP log. |
| * |
| * This program and the accompanying materials are made available |
| * under the terms of the Eclipse Distribution License v1.0 which |
| * accompanies this distribution, is reproduced below, and is |
| * available at http://www.eclipse.org/org/documents/edl-v10.php |
| * |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or |
| * without modification, are permitted provided that the following |
| * conditions are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * - Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials provided |
| * with the distribution. |
| * |
| * - Neither the name of the Eclipse Foundation, Inc. nor the |
| * names of its contributors may be used to endorse or promote |
| * products derived from this software without specific prior |
| * written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND |
| * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
| * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| package org.eclipse.jgit.util; |
| |
| import java.io.BufferedReader; |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.InputStreamReader; |
| import java.io.PrintStream; |
| import java.nio.charset.Charset; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.nio.file.attribute.PosixFilePermission; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| import java.util.Set; |
| |
| import org.eclipse.jgit.api.errors.JGitInternalException; |
| import org.eclipse.jgit.lib.Constants; |
| import org.eclipse.jgit.lib.Repository; |
| |
| /** |
| * Base FS for POSIX based systems |
| * |
| * @since 3.0 |
| */ |
| public class FS_POSIX extends FS { |
| private static final int DEFAULT_UMASK = 0022; |
| private volatile int umask = -1; |
| |
| /** Default constructor. */ |
| protected FS_POSIX() { |
| } |
| |
| /** |
| * Constructor |
| * |
| * @param src |
| * FS to copy some settings from |
| */ |
| protected FS_POSIX(FS src) { |
| super(src); |
| if (src instanceof FS_POSIX) { |
| umask = ((FS_POSIX) src).umask; |
| } |
| } |
| |
| @Override |
| public FS newInstance() { |
| return new FS_POSIX(this); |
| } |
| |
| /** |
| * Set the umask, overriding any value observed from the shell. |
| * |
| * @param umask |
| * mask to apply when creating files. |
| * @since 4.0 |
| */ |
| public void setUmask(int umask) { |
| this.umask = umask; |
| } |
| |
| private int umask() { |
| int u = umask; |
| if (u == -1) { |
| u = readUmask(); |
| umask = u; |
| } |
| return u; |
| } |
| |
| /** @return mask returned from running {@code umask} command in shell. */ |
| private static int readUmask() { |
| try { |
| Process p = Runtime.getRuntime().exec( |
| new String[] { "sh", "-c", "umask" }, //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ |
| null, null); |
| try (BufferedReader lineRead = new BufferedReader( |
| new InputStreamReader(p.getInputStream(), Charset |
| .defaultCharset().name()))) { |
| if (p.waitFor() == 0) { |
| String s = lineRead.readLine(); |
| if (s != null && s.matches("0?\\d{3}")) { //$NON-NLS-1$ |
| return Integer.parseInt(s, 8); |
| } |
| } |
| return DEFAULT_UMASK; |
| } |
| } catch (Exception e) { |
| return DEFAULT_UMASK; |
| } |
| } |
| |
| @Override |
| protected File discoverGitExe() { |
| String path = SystemReader.getInstance().getenv("PATH"); //$NON-NLS-1$ |
| File gitExe = searchPath(path, "git"); //$NON-NLS-1$ |
| |
| if (gitExe == null) { |
| if (SystemReader.getInstance().isMacOS()) { |
| if (searchPath(path, "bash") != null) { //$NON-NLS-1$ |
| // On MacOSX, PATH is shorter when Eclipse is launched from the |
| // Finder than from a terminal. Therefore try to launch bash as a |
| // login shell and search using that. |
| String w = readPipe(userHome(), |
| new String[]{"bash", "--login", "-c", "which git"}, // //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ |
| Charset.defaultCharset().name()); |
| if (!StringUtils.isEmptyOrNull(w)) |
| gitExe = new File(w); |
| } |
| } |
| } |
| |
| return gitExe; |
| } |
| |
| @Override |
| public boolean isCaseSensitive() { |
| return !SystemReader.getInstance().isMacOS(); |
| } |
| |
| @Override |
| public boolean supportsExecute() { |
| return true; |
| } |
| |
| @Override |
| public boolean canExecute(File f) { |
| return FileUtils.canExecute(f); |
| } |
| |
| @Override |
| public boolean setExecute(File f, boolean canExecute) { |
| if (!isFile(f)) |
| return false; |
| if (!canExecute) |
| return f.setExecutable(false); |
| |
| try { |
| Path path = f.toPath(); |
| Set<PosixFilePermission> pset = Files.getPosixFilePermissions(path); |
| |
| // owner (user) is always allowed to execute. |
| pset.add(PosixFilePermission.OWNER_EXECUTE); |
| |
| int mask = umask(); |
| apply(pset, mask, PosixFilePermission.GROUP_EXECUTE, 1 << 3); |
| apply(pset, mask, PosixFilePermission.OTHERS_EXECUTE, 1); |
| Files.setPosixFilePermissions(path, pset); |
| return true; |
| } catch (IOException e) { |
| // The interface doesn't allow to throw IOException |
| final boolean debug = Boolean.parseBoolean(SystemReader |
| .getInstance().getProperty("jgit.fs.debug")); //$NON-NLS-1$ |
| if (debug) |
| System.err.println(e); |
| return false; |
| } |
| } |
| |
| private static void apply(Set<PosixFilePermission> set, |
| int umask, PosixFilePermission perm, int test) { |
| if ((umask & test) == 0) { |
| // If bit is clear in umask, permission is allowed. |
| set.add(perm); |
| } else { |
| // If bit is set in umask, permission is denied. |
| set.remove(perm); |
| } |
| } |
| |
| @Override |
| public ProcessBuilder runInShell(String cmd, String[] args) { |
| List<String> argv = new ArrayList<String>(4 + args.length); |
| argv.add("sh"); //$NON-NLS-1$ |
| argv.add("-c"); //$NON-NLS-1$ |
| argv.add(cmd + " \"$@\""); //$NON-NLS-1$ |
| argv.add(cmd); |
| argv.addAll(Arrays.asList(args)); |
| ProcessBuilder proc = new ProcessBuilder(); |
| proc.command(argv); |
| return proc; |
| } |
| |
| /** |
| * @since 4.0 |
| */ |
| @Override |
| public ProcessResult runHookIfPresent(Repository repository, String hookName, |
| String[] args, PrintStream outRedirect, PrintStream errRedirect, |
| String stdinArgs) throws JGitInternalException { |
| return internalRunHookIfPresent(repository, hookName, args, outRedirect, |
| errRedirect, stdinArgs); |
| } |
| |
| @Override |
| public boolean retryFailedLockFileCommit() { |
| return false; |
| } |
| |
| @Override |
| public boolean supportsSymlinks() { |
| return true; |
| } |
| |
| @Override |
| public void setHidden(File path, boolean hidden) throws IOException { |
| // no action on POSIX |
| } |
| |
| /** |
| * @since 3.3 |
| */ |
| @Override |
| public Attributes getAttributes(File path) { |
| return FileUtils.getFileAttributesPosix(this, path); |
| } |
| |
| /** |
| * @since 3.3 |
| */ |
| @Override |
| public File normalize(File file) { |
| return FileUtils.normalize(file); |
| } |
| |
| /** |
| * @since 3.3 |
| */ |
| @Override |
| public String normalize(String name) { |
| return FileUtils.normalize(name); |
| } |
| |
| /** |
| * @since 3.7 |
| */ |
| @Override |
| public File findHook(Repository repository, String hookName) { |
| final File gitdir = repository.getDirectory(); |
| if (gitdir == null) { |
| return null; |
| } |
| final Path hookPath = gitdir.toPath().resolve(Constants.HOOKS) |
| .resolve(hookName); |
| if (Files.isExecutable(hookPath)) |
| return hookPath.toFile(); |
| return null; |
| } |
| } |