Java tutorial
/* * 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. * * 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.util; import org.nbgit.OutputLogger; import org.nbgit.StatusInfo; import java.io.File; import java.io.IOException; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.Set; import org.nbgit.Git; import org.nbgit.ui.log.RepositoryRevision; import org.netbeans.api.queries.SharabilityQuery; import org.openide.util.Exceptions; import org.eclipse.jgit.dircache.DirCache; import org.eclipse.jgit.dircache.DirCacheEntry; import org.eclipse.jgit.lib.Constants; import org.eclipse.jgit.lib.IndexDiff; import org.eclipse.jgit.lib.ObjectId; import org.eclipse.jgit.lib.Repository; import org.eclipse.jgit.revwalk.RevCommit; import org.eclipse.jgit.revwalk.RevWalk; import org.eclipse.jgit.revwalk.filter.RevFilter; import org.eclipse.jgit.treewalk.FileTreeIterator; import org.eclipse.jgit.treewalk.TreeWalk; import org.eclipse.jgit.treewalk.filter.PathFilter; import org.eclipse.jgit.treewalk.filter.PathFilterGroup; /** * */ public class GitCommand { public static RepositoryRevision.Walk getLogMessages(String rootPath, Set<File> files, String fromRevision, String toRevision, boolean showMerges, OutputLogger logger) { File root = new File(rootPath); Repository repo = Git.getInstance().getRepository(root); RepositoryRevision.Walk walk = new RepositoryRevision.Walk(repo); try { if (fromRevision == null) { fromRevision = Constants.HEAD; } ObjectId from = repo.resolve(fromRevision); if (from == null) { return null; } walk.markStart(walk.parseCommit(from)); ObjectId to = toRevision != null ? repo.resolve(toRevision) : null; if (to != null) { walk.markUninteresting(walk.parseCommit(to)); } List<PathFilter> paths = new ArrayList<PathFilter>(); for (File file : files) { String path = getRelative(root, file); if (!(path.length() == 0)) { paths.add(PathFilter.create(path)); } } if (!paths.isEmpty()) { walk.setTreeFilter(PathFilterGroup.create(paths)); } if (!showMerges) { walk.setRevFilter(RevFilter.NO_MERGES); } } catch (IOException ioe) { return null; } return walk; } public static List<String[]> getRevisions(File root, int limit) { return getRevisionsForFile(root, null, limit); } public static List<String[]> getRevisionsForFile(File root, File[] files, int limit) { Repository repo = Git.getInstance().getRepository(root); RevWalk walk = new RevWalk(repo); List<String[]> revs = new ArrayList<String[]>(); try { ObjectId from = repo.resolve(Constants.HEAD); if (from == null) { return null; } walk.markStart(walk.parseCommit(from)); if (files != null) { List<PathFilter> paths = new ArrayList<PathFilter>(); for (File file : files) { String path = getRelative(root, file); if (!(path.length() == 0)) { paths.add(PathFilter.create(path)); } } if (!paths.isEmpty()) { walk.setTreeFilter(PathFilterGroup.create(paths)); } } for (RevCommit rev : walk) { revs.add(new String[] { rev.getShortMessage(), rev.getId().name() }); if (--limit <= 0) { break; } } } catch (IOException ioe) { } return revs; } private static String getRelative(File root, File dir) { return getRelative(root.getAbsolutePath(), dir.getAbsolutePath()); } private static String getRelative(String root, String dir) { if (dir.equals(root)) { return ""; } return dir.replace(root + File.separator, ""); } private static void put(Set<String> set, String relPath, Map<File, StatusInfo> files, File root, int status) { for (String path : set) { if (relPath.length() > 0 && !path.startsWith(relPath)) { continue; } File file = new File(root, path); files.put(file, new StatusInfo(status, null, false)); } } /* * m odified * a dded * r emoved * d eleted * u nknown * C opies * * i gnored * c lean */ public static Map<File, StatusInfo> getAllStatus(File root, File dir) throws IOException { String relPath = getRelative(root, dir); Repository repo = Git.getInstance().getRepository(root); Map<File, StatusInfo> files = new HashMap<File, StatusInfo>(); try { IndexDiff index = new IndexDiff(repo); index.diff(); put(index.getAdded(), relPath, files, root, StatusInfo.STATUS_VERSIONED_ADDEDLOCALLY); put(index.getRemoved(), relPath, files, root, StatusInfo.STATUS_VERSIONED_REMOVEDLOCALLY); put(index.getMissing(), relPath, files, root, StatusInfo.STATUS_VERSIONED_DELETEDLOCALLY); put(index.getChanged(), relPath, files, root, StatusInfo.STATUS_VERSIONED_MODIFIEDLOCALLY); put(index.getModified(), relPath, files, root, StatusInfo.STATUS_VERSIONED_MODIFIEDLOCALLY); final FileTreeIterator workTree = new FileTreeIterator(repo.getWorkDir()); final TreeWalk walk = new TreeWalk(repo); DirCache cache = DirCache.read(repo); walk.reset(); // drop the first empty tree walk.setRecursive(true); walk.addTree(workTree); int share = SharabilityQuery.getSharability(dir); if (share == SharabilityQuery.NOT_SHARABLE) { return files; } while (walk.next()) { String path = walk.getPathString(); if (relPath.length() > 0 && !path.startsWith(relPath)) { continue; } if (index.getAdded().contains(path) || index.getRemoved().contains(path) || index.getMissing().contains(path) || index.getChanged().contains(path) || index.getModified().contains(path)) { continue; } DirCacheEntry entry = cache.getEntry(path); File file = new File(root, path); int status; if (entry != null) { status = StatusInfo.STATUS_VERSIONED_UPTODATE; } else { if (share == SharabilityQuery.MIXED && SharabilityQuery.getSharability(file) == SharabilityQuery.NOT_SHARABLE) { continue; } status = StatusInfo.STATUS_NOTVERSIONED_NEWLOCALLY; } files.put(file, new StatusInfo(status, null, false)); } } catch (IOException ex) { Exceptions.printStackTrace(ex); } return files; } /* * m odified * a dded * r emoved * d eleted * u nknown * C opies */ public static Map<File, StatusInfo> getInterestingStatus(File root, File dir) { String relPath = getRelative(root, dir); Repository repo = Git.getInstance().getRepository(root); IndexDiff index; Map<File, StatusInfo> files = new HashMap<File, StatusInfo>(); try { index = new IndexDiff(repo); index.diff(); put(index.getAdded(), relPath, files, root, StatusInfo.STATUS_VERSIONED_ADDEDLOCALLY); put(index.getRemoved(), relPath, files, root, StatusInfo.STATUS_VERSIONED_REMOVEDLOCALLY); put(index.getMissing(), relPath, files, root, StatusInfo.STATUS_VERSIONED_DELETEDLOCALLY); put(index.getChanged(), relPath, files, root, StatusInfo.STATUS_VERSIONED_MODIFIEDLOCALLY); put(index.getModified(), relPath, files, root, StatusInfo.STATUS_VERSIONED_MODIFIEDLOCALLY); final FileTreeIterator workTree = new FileTreeIterator(repo.getWorkDir()); final TreeWalk walk = new TreeWalk(repo); walk.reset(); // drop the first empty tree walk.setRecursive(true); walk.addTree(workTree); DirCache cache = DirCache.read(repo); while (walk.next()) { String path = walk.getPathString(); if (relPath.length() > 0 && !path.startsWith(relPath)) { continue; } if (index.getAdded().contains(path) || index.getRemoved().contains(path) || index.getMissing().contains(path) || index.getChanged().contains(path) || index.getModified().contains(path)) { continue; } DirCacheEntry entry = cache.getEntry(path); if (entry != null) { continue; } int status = StatusInfo.STATUS_NOTVERSIONED_NEWLOCALLY; File file = new File(root, path); files.put(file, new StatusInfo(status, null, false)); } } catch (IOException ex) { Exceptions.printStackTrace(ex); } return files; } public static StatusInfo getSingleStatus(File root, File file) { Repository repo = Git.getInstance().getRepository(root); IndexDiff index; int share = SharabilityQuery.getSharability(file.getParentFile()); if (share == SharabilityQuery.NOT_SHARABLE || (share == SharabilityQuery.MIXED && SharabilityQuery.getSharability(file) == SharabilityQuery.NOT_SHARABLE)) { return new StatusInfo(StatusInfo.STATUS_NOTVERSIONED_EXCLUDED, null, false); } int status = StatusInfo.STATUS_UNKNOWN; String name = getRelative(root, file); try { index = new IndexDiff(repo); index.diff(); } catch (IOException ex) { Exceptions.printStackTrace(ex); return new StatusInfo(status, null, false); } if (index.getAdded().contains(name)) { status = StatusInfo.STATUS_VERSIONED_ADDEDLOCALLY; } else if (index.getRemoved().contains(name)) { status = StatusInfo.STATUS_VERSIONED_REMOVEDLOCALLY; } else if (index.getMissing().contains(name)) { status = StatusInfo.STATUS_VERSIONED_DELETEDLOCALLY; } else if (index.getChanged().contains(name)) { status = StatusInfo.STATUS_VERSIONED_MODIFIEDLOCALLY; } else if (index.getModified().contains(name)) { status = StatusInfo.STATUS_VERSIONED_MODIFIEDLOCALLY; } else { status = StatusInfo.STATUS_VERSIONED_UPTODATE; } StatusInfo info = new StatusInfo(status, null, false); return info; } }