| /* |
| * Copyright (C) 2017, Google Inc. |
| * 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.internal.storage.dfs; |
| |
| import java.io.IOException; |
| import java.util.List; |
| |
| import org.eclipse.jgit.errors.CorruptPackIndexException; |
| import org.eclipse.jgit.errors.MissingObjectException; |
| import org.eclipse.jgit.internal.fsck.FsckError; |
| import org.eclipse.jgit.internal.fsck.FsckError.CorruptIndex; |
| import org.eclipse.jgit.internal.fsck.FsckPackParser; |
| import org.eclipse.jgit.internal.storage.pack.PackExt; |
| import org.eclipse.jgit.lib.Constants; |
| import org.eclipse.jgit.lib.ObjectChecker; |
| import org.eclipse.jgit.lib.ProgressMonitor; |
| import org.eclipse.jgit.lib.Ref; |
| import org.eclipse.jgit.revwalk.ObjectWalk; |
| import org.eclipse.jgit.revwalk.RevObject; |
| import org.eclipse.jgit.transport.PackedObjectInfo; |
| |
| /** Verify the validity and connectivity of a DFS repository. */ |
| public class DfsFsck { |
| private final DfsRepository repo; |
| |
| private final DfsObjDatabase objdb; |
| |
| private final DfsReader ctx; |
| |
| private ObjectChecker objChecker = new ObjectChecker(); |
| |
| /** |
| * Initialize DFS fsck. |
| * |
| * @param repository |
| * the dfs repository to check. |
| */ |
| public DfsFsck(DfsRepository repository) { |
| repo = repository; |
| objdb = repo.getObjectDatabase(); |
| ctx = objdb.newReader(); |
| } |
| |
| |
| /** |
| * Verify the integrity and connectivity of all objects in the object |
| * database. |
| * |
| * @param pm |
| * callback to provide progress feedback during the check. |
| * @return all errors about the repository. |
| * @throws IOException |
| * if encounters IO errors during the process. |
| */ |
| public FsckError check(ProgressMonitor pm) throws IOException { |
| FsckError errors = new FsckError(); |
| try { |
| for (DfsPackFile pack : objdb.getPacks()) { |
| DfsPackDescription packDesc = pack.getPackDescription(); |
| try (ReadableChannel channel = repo.getObjectDatabase() |
| .openFile(packDesc, PackExt.PACK)) { |
| List<PackedObjectInfo> objectsInPack; |
| FsckPackParser parser = new FsckPackParser( |
| repo.getObjectDatabase(), channel); |
| parser.setObjectChecker(objChecker); |
| parser.overwriteObjectCount(packDesc.getObjectCount()); |
| parser.parse(pm); |
| errors.getCorruptObjects() |
| .addAll(parser.getCorruptObjects()); |
| objectsInPack = parser.getSortedObjectList(null); |
| parser.verifyIndex(objectsInPack, pack.getPackIndex(ctx)); |
| } catch (MissingObjectException e) { |
| errors.getMissingObjects().add(e.getObjectId()); |
| } catch (CorruptPackIndexException e) { |
| errors.getCorruptIndices().add(new CorruptIndex( |
| pack.getPackDescription() |
| .getFileName(PackExt.INDEX), |
| e.getErrorType())); |
| } |
| } |
| |
| try (ObjectWalk ow = new ObjectWalk(ctx)) { |
| for (Ref r : repo.getAllRefs().values()) { |
| try { |
| RevObject tip = ow.parseAny(r.getObjectId()); |
| if (r.getLeaf().getName().startsWith(Constants.R_HEADS)) { |
| // check if heads point to a commit object |
| if (tip.getType() != Constants.OBJ_COMMIT) { |
| errors.getNonCommitHeads() |
| .add(r.getLeaf().getName()); |
| } |
| } |
| ow.markStart(tip); |
| ow.checkConnectivity(); |
| ow.markUninteresting(tip); |
| } catch (MissingObjectException e) { |
| errors.getMissingObjects().add(e.getObjectId()); |
| } |
| } |
| } |
| } finally { |
| ctx.close(); |
| } |
| return errors; |
| } |
| |
| /** |
| * Use a customized object checker instead of the default one. Caller can |
| * specify a skip list to ignore some errors. |
| * |
| * @param objChecker |
| * A customized object checker. |
| */ |
| public void setObjectChecker(ObjectChecker objChecker) { |
| this.objChecker = objChecker; |
| } |
| } |