/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common
* Development and Distribution License("CDDL") (collectively, the
* "License"). You may not use this file except in compliance with the
* License. You can obtain a copy of the License at
* http://www.netbeans.org/cddl-gplv2.html
* or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
* specific language governing permissions and limitations under the
* License. When distributing the software, include this License Header
* Notice in each file and include the License file at
* nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the GPL Version 2 section of the License file that
* accompanied this code. If applicable, add the following below the
* License Header, with the fields enclosed by brackets [] replaced by
* your own identifying information:
* "Portions Copyrighted [year] [name of copyright owner]"
*
* Contributor(s):
*
* The Original Software is NetBeans. The Initial Developer of the Original
* Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
* Microsystems, Inc. All Rights Reserved.
* Portions Copyright 2008 Alexander Coles (Ikonoklastik Productions).
*
* If you wish your version of this file to be governed by only the CDDL
* or only the GPL Version 2, indicate your decision by adding
* "[Contributor] elects to include this software in this distribution
* under the [CDDL or GPL Version 2] license." If you do not indicate a
* single choice of license, a recipient has the option to distribute
* your version of this file under either the CDDL, the GPL Version 2 or
* to extend the choice of license to its licensees as provided above.
* However, if you add GPL Version 2 code and therefore, elected the GPL
* Version 2 license, then the option applies only if the new code is
* made subject to such option by the copyright holder.
*/
package org.nbgit;
import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.nbgit.util.GitUtils;
import org.netbeans.modules.versioning.spi.VersioningSupport;
import org.openide.filesystems.FileObject;
import org.openide.filesystems.FileUtil;
import org.openide.util.RequestProcessor;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.Repository;
/**
* Main entry point for Git functionality, use getInstance() to get the Git object.
*
* @author alexbcoles
* @author Maros Sandor
*/
public class Git {
public static final String GIT_OUTPUT_TAB_TITLE = org.openide.util.NbBundle.getMessage(Git.class, "CTL_Git_DisplayName"); // NOI18N
public static final String PROP_ANNOTATIONS_CHANGED = "annotationsChanged"; // NOI18N
public static final String PROP_VERSIONED_FILES_CHANGED = "versionedFilesChanged"; // NOI18N
public static final String PROP_CHANGESET_CHANGED = "changesetChanged"; // NOI18N
public static final Logger LOG = Logger.getLogger("org.nbgit"); // NOI18N
private static final int STATUS_DIFFABLE =
StatusInfo.STATUS_VERSIONED_UPTODATE |
StatusInfo.STATUS_VERSIONED_MODIFIEDLOCALLY |
StatusInfo.STATUS_VERSIONED_MODIFIEDINREPOSITORY |
StatusInfo.STATUS_VERSIONED_CONFLICT |
StatusInfo.STATUS_VERSIONED_MERGE |
StatusInfo.STATUS_VERSIONED_REMOVEDINREPOSITORY |
StatusInfo.STATUS_VERSIONED_MODIFIEDINREPOSITORY |
StatusInfo.STATUS_VERSIONED_MODIFIEDINREPOSITORY;
private final PropertyChangeSupport support = new PropertyChangeSupport(this);
private final StatusCache statusCache = new StatusCache(this);
private HashMap<String, RequestProcessor> processorsToUrl;
private final Map<File, Repository> repos = new HashMap<File, Repository>();
private static Git instance;
private Git() {
}
public static synchronized Git getInstance() {
if (instance == null) {
instance = new Git();
}
return instance;
}
public Repository getRepository(File root) {
Repository repo = repos.get(root);
if (repo == null) {
final File gitDir = new File(root, Constants.DOT_GIT);
try {
repo = new Repository(gitDir);
repos.put(root, repo);
} catch (IOException ex) {
}
}
return repo;
}
/**
* Gets the Status Cache for the Git repository.
*
* @return StatusCache for the repository
*/
public StatusCache getStatusCache() {
return statusCache;
}
/**
* Tests the <tt>.git</tt> directory itself.
*
* @param file
* @return
*/
public boolean isAdministrative(File file) {
String name = file.getName();
return isAdministrative(name) && file.isDirectory();
}
public boolean isAdministrative(String fileName) {
return fileName.equals(".git"); // NOI18N
}
/**
* Tests whether a file or directory should receive the STATUS_NOTVERSIONED_NOTMANAGED status.
* All files and folders that have a parent with CVS/Repository file are considered versioned.
*
* @param file a file or directory
* @return false if the file should receive the STATUS_NOTVERSIONED_NOTMANAGED status, true otherwise
*/
public boolean isManaged(File file) {
return VersioningSupport.getOwner(file) instanceof GitVCS && !GitUtils.isPartOfGitMetadata(file);
}
public File getTopmostManagedParent(File file) {
if (GitUtils.isPartOfGitMetadata(file)) {
for (; file != null; file = file.getParentFile()) {
if (isAdministrative(file)) {
file = file.getParentFile();
break;
}
}
}
File topmost = null;
for (; file != null; file = file.getParentFile()) {
if (org.netbeans.modules.versioning.util.Utils.isScanForbidden(file)) {
break;
}
if (new File(file, ".git").canWrite()) { // NOI18N
topmost = file;
break;
}
}
return topmost;
}
/**
* Uses content analysis to return the mime type for files.
*
* @param file file to examine
* @return String mime type of the file (or best guess)
*/
public String getMimeType(File file) {
FileObject fo = FileUtil.toFileObject(file);
String foMime;
if (fo == null) {
foMime = "content/unknown";
} else {
foMime = fo.getMIMEType();
if ("content/unknown".equals(foMime)) // NOI18N
{
foMime = "text/plain";
}
}
if ((statusCache.getStatus(file).getStatus() & StatusInfo.STATUS_VERSIONED) == 0) {
return GitUtils.isFileContentBinary(file) ? "application/octet-stream" : foMime;
} else {
return foMime;
}
}
public void versionedFilesChanged() {
support.firePropertyChange(PROP_VERSIONED_FILES_CHANGED, null, null);
}
public void refreshAllAnnotations() {
support.firePropertyChange(PROP_ANNOTATIONS_CHANGED, null, null);
}
public void changesetChanged(File repository) {
support.firePropertyChange(PROP_CHANGESET_CHANGED, repository, null);
}
public void addPropertyChangeListener(PropertyChangeListener listener) {
support.addPropertyChangeListener(listener);
}
public void removePropertyChangeListener(PropertyChangeListener listener) {
support.removePropertyChangeListener(listener);
}
public void getOriginalFile(File workingCopy, File originalFile) {
StatusInfo info = statusCache.getStatus(workingCopy);
LOG.log(Level.FINE, "getOriginalFile: {0} {1}", new Object[]{workingCopy, info}); // NOI18N
if ((info.getStatus() & STATUS_DIFFABLE) == 0) {
return; // We can get status returned as UptoDate instead of LocallyNew
// because refreshing of status after creation has been scheduled
// but may not have happened yet.
}
try {
File original = GitUtils.getFileRevision(workingCopy, GitRepository.REVISION_BASE);
if (original == null) {
return;
}
org.netbeans.modules.versioning.util.Utils.copyStreamsCloseAll(new FileOutputStream(originalFile), new FileInputStream(original));
original.delete();
} catch (IOException e) {
Logger.getLogger(Git.class.getName()).log(Level.INFO, "Unable to get original file", e); // NOI18N
}
}
/**
* Serializes all Git requests (moves them out of AWT).
*/
public RequestProcessor getRequestProcessor() {
return getRequestProcessor((String) null);
}
/**
* Serializes all Git requests (moves them out of AWT).
*/
public RequestProcessor getRequestProcessor(File file) {
return getRequestProcessor(file.getAbsolutePath());
}
public RequestProcessor getRequestProcessor(String url) {
if (processorsToUrl == null) {
processorsToUrl = new HashMap<String, RequestProcessor>();
}
String key;
if (url != null) {
key = url;
} else {
key = "ANY_URL";
}
RequestProcessor rp = processorsToUrl.get(key);
if (rp == null) {
rp = new RequestProcessor("Git - " + key, 1, true); // NOI18N
processorsToUrl.put(key, rp);
}
return rp;
}
public void clearRequestProcessor(String url) {
if (processorsToUrl != null & url != null) {
processorsToUrl.remove(url);
}
}
}