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/*
* Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org> and others
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0 which is available at
* https://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package org.eclipse.jgit.util;
import static java.nio.charset.StandardCharsets.UTF_8;
import java.io.File;
import java.io.PrintStream;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.errors.CommandFailedException;
import org.eclipse.jgit.lib.Repository;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* FS implementation for Cygwin on Windows
*
* @since 3.0
*/
public class FS_Win32_Cygwin extends FS_Win32 {
private static final Logger LOG = LoggerFactory
.getLogger(FS_Win32_Cygwin.class);
private static String cygpath;
/**
* Whether cygwin is found
*
* @return true if cygwin is found
*/
public static boolean isCygwin() {
final String path = AccessController
.doPrivileged((PrivilegedAction<String>) () -> System
.getProperty("java.library.path") //$NON-NLS-1$
);
if (path == null)
return false;
File found = FS.searchPath(path, "cygpath.exe"); //$NON-NLS-1$
if (found != null)
cygpath = found.getPath();
return cygpath != null;
}
/**
* Constructor
*/
public FS_Win32_Cygwin() {
super();
}
/**
* Constructor
*
* @param src
* instance whose attributes to copy
*/
protected FS_Win32_Cygwin(FS src) {
super(src);
}
/** {@inheritDoc} */
@Override
public FS newInstance() {
return new FS_Win32_Cygwin(this);
}
/** {@inheritDoc} */
@Override
public File resolve(File dir, String pn) {
String useCygPath = System.getProperty("jgit.usecygpath"); //$NON-NLS-1$
if (useCygPath != null && useCygPath.equals("true")) { //$NON-NLS-1$
String w;
try {
w = readPipe(dir, //
new String[] { cygpath, "--windows", "--absolute", pn }, // //$NON-NLS-1$ //$NON-NLS-2$
UTF_8.name());
} catch (CommandFailedException e) {
LOG.warn(e.getMessage());
return null;
}
if (!StringUtils.isEmptyOrNull(w)) {
return new File(w);
}
}
return super.resolve(dir, pn);
}
/** {@inheritDoc} */
@Override
protected File userHomeImpl() {
final String home = AccessController.doPrivileged(
(PrivilegedAction<String>) () -> System.getenv("HOME") //$NON-NLS-1$
);
if (home == null || home.length() == 0)
return super.userHomeImpl();
return resolve(new File("."), home); //$NON-NLS-1$
}
/** {@inheritDoc} */
@Override
public ProcessBuilder runInShell(String cmd, String[] args) {
List<String> argv = new ArrayList<>(4 + args.length);
argv.add("sh.exe"); //$NON-NLS-1$
argv.add("-c"); //$NON-NLS-1$
argv.add("$0 \"$@\""); //$NON-NLS-1$
argv.add(cmd);
argv.addAll(Arrays.asList(args));
ProcessBuilder proc = new ProcessBuilder();
proc.command(argv);
return proc;
}
/** {@inheritDoc} */
@Override
public String relativize(String base, String other) {
final String relativized = super.relativize(base, other);
return relativized.replace(File.separatorChar, '/');
}
/** {@inheritDoc} */
@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);
}
}
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