| /* |
| * Copyright (C) 2015, 2017, Dariusz Luksza <dariusz@luksza.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.lfs.lib; |
| |
| import java.io.IOException; |
| |
| import org.eclipse.jgit.errors.IncorrectObjectTypeException; |
| import org.eclipse.jgit.errors.MissingObjectException; |
| import org.eclipse.jgit.lfs.LfsPointer; |
| import org.eclipse.jgit.lib.ObjectId; |
| import org.eclipse.jgit.lib.ObjectLoader; |
| import org.eclipse.jgit.lib.ObjectStream; |
| import org.eclipse.jgit.treewalk.TreeWalk; |
| import org.eclipse.jgit.treewalk.filter.TreeFilter; |
| |
| /** |
| * Detects Large File pointers, as described in [1] in Git repository. |
| * |
| * [1] https://github.com/github/git-lfs/blob/master/docs/spec.md |
| * |
| * @since 4.7 |
| */ |
| public class LfsPointerFilter extends TreeFilter { |
| |
| private LfsPointer pointer; |
| |
| /** |
| * Get the field <code>pointer</code>. |
| * |
| * @return {@link org.eclipse.jgit.lfs.LfsPointer} or {@code null} |
| */ |
| public LfsPointer getPointer() { |
| return pointer; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public boolean include(TreeWalk walk) throws MissingObjectException, |
| IncorrectObjectTypeException, IOException { |
| pointer = null; |
| if (walk.isSubtree()) { |
| return walk.isRecursive(); |
| } |
| ObjectId objectId = walk.getObjectId(0); |
| ObjectLoader object = walk.getObjectReader().open(objectId); |
| if (object.getSize() > 1024) { |
| return false; |
| } |
| |
| try (ObjectStream stream = object.openStream()) { |
| pointer = LfsPointer.parseLfsPointer(stream); |
| return pointer != null; |
| } |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public boolean shouldBeRecursive() { |
| return false; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public TreeFilter clone() { |
| return new LfsPointerFilter(); |
| } |
| } |