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- /*
- * Copyright (C) 2009, Google Inc.
- * Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org>
- * 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.File;
- import java.io.IOException;
- import java.nio.charset.Charset;
- import java.nio.file.FileVisitOption;
- import java.nio.file.FileVisitResult;
- import java.nio.file.Files;
- import java.nio.file.Path;
- import java.nio.file.SimpleFileVisitor;
- import java.nio.file.attribute.BasicFileAttributes;
- import java.util.ArrayList;
- import java.util.Arrays;
- import java.util.EnumSet;
- import java.util.List;
-
- import org.eclipse.jgit.errors.CommandFailedException;
- import org.eclipse.jgit.treewalk.FileTreeIterator.FileEntry;
- import org.eclipse.jgit.treewalk.FileTreeIterator.FileModeStrategy;
- import org.eclipse.jgit.treewalk.WorkingTreeIterator.Entry;
- import org.slf4j.Logger;
- import org.slf4j.LoggerFactory;
-
-
- /**
- * FS implementation for Windows
- *
- * @since 3.0
- */
- public class FS_Win32 extends FS {
- private final static Logger LOG = LoggerFactory.getLogger(FS_Win32.class);
-
- private volatile Boolean supportSymlinks;
-
- /**
- * Constructor
- */
- public FS_Win32() {
- super();
- }
-
- /**
- * Constructor
- *
- * @param src
- * instance whose attributes to copy
- */
- protected FS_Win32(FS src) {
- super(src);
- }
-
- /** {@inheritDoc} */
- @Override
- public FS newInstance() {
- return new FS_Win32(this);
- }
-
- /** {@inheritDoc} */
- @Override
- public boolean supportsExecute() {
- return false;
- }
-
- /** {@inheritDoc} */
- @Override
- public boolean canExecute(File f) {
- return false;
- }
-
- /** {@inheritDoc} */
- @Override
- public boolean setExecute(File f, boolean canExec) {
- return false;
- }
-
- /** {@inheritDoc} */
- @Override
- public boolean isCaseSensitive() {
- return false;
- }
-
- /** {@inheritDoc} */
- @Override
- public boolean retryFailedLockFileCommit() {
- return true;
- }
-
- /** {@inheritDoc} */
- @Override
- public Entry[] list(File directory, FileModeStrategy fileModeStrategy) {
- List<Entry> result = new ArrayList<>();
- FS fs = this;
- boolean checkExecutable = fs.supportsExecute();
- try {
- Files.walkFileTree(directory.toPath(),
- EnumSet.noneOf(FileVisitOption.class), 1,
- new SimpleFileVisitor<Path>() {
- @Override
- public FileVisitResult visitFile(Path file,
- BasicFileAttributes attrs) throws IOException {
- File f = file.toFile();
- FS.Attributes attributes = new FS.Attributes(fs, f,
- true, attrs.isDirectory(),
- checkExecutable && f.canExecute(),
- attrs.isSymbolicLink(),
- attrs.isRegularFile(),
- attrs.creationTime().toMillis(),
- attrs.lastModifiedTime().toInstant(),
- attrs.size());
- result.add(new FileEntry(f, fs, attributes,
- fileModeStrategy));
- return FileVisitResult.CONTINUE;
- }
-
- @Override
- public FileVisitResult visitFileFailed(Path file,
- IOException exc) throws IOException {
- // Just ignore it
- return FileVisitResult.CONTINUE;
- }
- });
- } catch (IOException e) {
- // Ignore
- }
- if (result.isEmpty()) {
- return NO_ENTRIES;
- }
- return result.toArray(new Entry[0]);
- }
-
- /** {@inheritDoc} */
- @Override
- protected File discoverGitExe() {
- String path = SystemReader.getInstance().getenv("PATH"); //$NON-NLS-1$
- File gitExe = searchPath(path, "git.exe", "git.cmd"); //$NON-NLS-1$ //$NON-NLS-2$
-
- if (gitExe == null) {
- if (searchPath(path, "bash.exe") != null) { //$NON-NLS-1$
- // This isn't likely to work, but its worth trying:
- // If bash is in $PATH, git should also be in $PATH.
- String w;
- try {
- w = readPipe(userHome(),
- new String[]{"bash", "--login", "-c", "which git"}, // //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
- Charset.defaultCharset().name());
- } catch (CommandFailedException e) {
- LOG.warn(e.getMessage());
- return null;
- }
- if (!StringUtils.isEmptyOrNull(w)) {
- // The path may be in cygwin/msys notation so resolve it right away
- gitExe = resolve(null, w);
- }
- }
- }
-
- return gitExe;
- }
-
- /** {@inheritDoc} */
- @Override
- protected File userHomeImpl() {
- String home = SystemReader.getInstance().getenv("HOME"); //$NON-NLS-1$
- if (home != null)
- return resolve(null, home);
- String homeDrive = SystemReader.getInstance().getenv("HOMEDRIVE"); //$NON-NLS-1$
- if (homeDrive != null) {
- String homePath = SystemReader.getInstance().getenv("HOMEPATH"); //$NON-NLS-1$
- if (homePath != null)
- return new File(homeDrive, homePath);
- }
-
- String homeShare = SystemReader.getInstance().getenv("HOMESHARE"); //$NON-NLS-1$
- if (homeShare != null)
- return new File(homeShare);
-
- return super.userHomeImpl();
- }
-
- /** {@inheritDoc} */
- @Override
- public ProcessBuilder runInShell(String cmd, String[] args) {
- List<String> argv = new ArrayList<>(3 + args.length);
- argv.add("cmd.exe"); //$NON-NLS-1$
- argv.add("/c"); //$NON-NLS-1$
- argv.add(cmd);
- argv.addAll(Arrays.asList(args));
- ProcessBuilder proc = new ProcessBuilder();
- proc.command(argv);
- return proc;
- }
-
- /** {@inheritDoc} */
- @Override
- public boolean supportsSymlinks() {
- if (supportSymlinks == null)
- detectSymlinkSupport();
- return Boolean.TRUE.equals(supportSymlinks);
- }
-
- private void detectSymlinkSupport() {
- File tempFile = null;
- try {
- tempFile = File.createTempFile("tempsymlinktarget", ""); //$NON-NLS-1$ //$NON-NLS-2$
- File linkName = new File(tempFile.getParentFile(), "tempsymlink"); //$NON-NLS-1$
- createSymLink(linkName, tempFile.getPath());
- supportSymlinks = Boolean.TRUE;
- linkName.delete();
- } catch (IOException | UnsupportedOperationException
- | InternalError e) {
- supportSymlinks = Boolean.FALSE;
- } finally {
- if (tempFile != null)
- try {
- FileUtils.delete(tempFile);
- } catch (IOException e) {
- throw new RuntimeException(e); // panic
- }
- }
- }
-
- /** {@inheritDoc} */
- @Override
- public Attributes getAttributes(File path) {
- return FileUtils.getFileAttributesBasic(this, path);
- }
- }
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