| /* |
| * Copyright (C) 2017, Google Inc. 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.pgm.debug; |
| |
| import java.io.FileInputStream; |
| import java.io.IOException; |
| |
| import org.eclipse.jgit.internal.storage.io.BlockSource; |
| import org.eclipse.jgit.internal.storage.reftable.RefCursor; |
| import org.eclipse.jgit.internal.storage.reftable.ReftableReader; |
| import org.eclipse.jgit.lib.ObjectId; |
| import org.eclipse.jgit.lib.Ref; |
| import org.eclipse.jgit.pgm.Command; |
| import org.eclipse.jgit.pgm.TextBuiltin; |
| import org.kohsuke.args4j.Argument; |
| |
| @Command |
| class ReadReftable extends TextBuiltin { |
| @Argument(index = 0) |
| private String input; |
| |
| @Argument(index = 1, required = false) |
| private String ref; |
| |
| /** {@inheritDoc} */ |
| @Override |
| protected void run() throws Exception { |
| try (FileInputStream in = new FileInputStream(input); |
| BlockSource src = BlockSource.from(in); |
| ReftableReader reader = new ReftableReader(src)) { |
| try (RefCursor rc = ref != null |
| ? reader.seekRefsWithPrefix(ref) |
| : reader.allRefs()) { |
| while (rc.next()) { |
| write(rc.getRef()); |
| } |
| } |
| } |
| } |
| |
| private void write(Ref r) throws IOException { |
| if (r.isSymbolic()) { |
| outw.println(r.getTarget().getName() + '\t' + r.getName()); |
| return; |
| } |
| |
| ObjectId id1 = r.getObjectId(); |
| if (id1 != null) { |
| outw.println(id1.name() + '\t' + r.getName()); |
| } |
| |
| ObjectId id2 = r.getPeeledObjectId(); |
| if (id2 != null) { |
| outw.println('^' + id2.name()); |
| } |
| } |
| } |