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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.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.eclipse.jgit.errors.CommandFailedException;
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);
}
public FS newInstance() {
return new FS_Win32(this);
}
public boolean supportsExecute() {
return false;
}
public boolean canExecute(final File f) {
return false;
}
public boolean setExecute(final File f, final boolean canExec) {
return false;
}
@Override
public boolean isCaseSensitive() {
return false;
}
@Override
public boolean retryFailedLockFileCommit() {
return true;
}
@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;
}
@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();
}
@Override
public ProcessBuilder runInShell(String cmd, String[] args) {
List<String> argv = new ArrayList<String>(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;
}
@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
}
}
}
/**
* @since 3.3
*/
@Override
public Attributes getAttributes(File path) {
return FileUtils.getFileAttributesBasic(this, path);
}
}
|
