org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/ShowRef.java

   1 /*
   2  * Copyright (C) 2010, Google Inc.
   3  * Copyright (C) 2008, Jonas Fonseca <fonseca@diku.dk>
   4  * Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org>
   5  * and other copyright owners as documented in the project's IP log.
   6  *
   7  * This program and the accompanying materials are made available
   8  * under the terms of the Eclipse Distribution License v1.0 which
   9  * accompanies this distribution, is reproduced below, and is
  10  * available at http://www.eclipse.org/org/documents/edl-v10.php
  11  *
  12  * All rights reserved.
  13  *
  14  * Redistribution and use in source and binary forms, with or
  15  * without modification, are permitted provided that the following
  16  * conditions are met:
  17  *
  18  * - Redistributions of source code must retain the above copyright
  19  *   notice, this list of conditions and the following disclaimer.
  20  *
  21  * - Redistributions in binary form must reproduce the above
  22  *   copyright notice, this list of conditions and the following
  23  *   disclaimer in the documentation and/or other materials provided
  24  *   with the distribution.
  25  *
  26  * - Neither the name of the Eclipse Foundation, Inc. nor the
  27  *   names of its contributors may be used to endorse or promote
  28  *   products derived from this software without specific prior
  29  *   written permission.
  30  *
  31  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
  32  * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
  33  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  34  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  35  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  36  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  37  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  38  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  39  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  40  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  41  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  42  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  43  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  44  */
  45
  46 package org.eclipse.jgit.pgm;
  47
  48 import java.util.Map;
  49 import java.util.SortedMap;
  50
  51 import org.eclipse.jgit.lib.AnyObjectId;
  52 import org.eclipse.jgit.lib.Ref;
  53 import org.eclipse.jgit.lib.RefComparator;
  54 import org.eclipse.jgit.util.RefMap;
  55
  56 class ShowRef extends TextBuiltin {
  57         @Override
  58         protected void run() throws Exception {
  59                 for (final Ref r : getSortedRefs()) {
  60                         show(r.getObjectId(), r.getName());
  61                         if (r.getPeeledObjectId() != null)
  62                                 show(r.getPeeledObjectId(), r.getName() + "^{}");
  63                 }
  64         }
  65
  66         private Iterable<Ref> getSortedRefs() {
  67                 Map<String, Ref> all = db.getAllRefs();
  68                 if (all instanceof RefMap
  69                                 || (all instanceof SortedMap && ((SortedMap) all).comparator() == null))
  70                         return all.values();
  71                 return RefComparator.sort(all.values());
  72         }
  73
  74         private void show(final AnyObjectId id, final String name) {
  75                 out.print(id.name());
  76                 out.print('\t');
  77                 out.print(name);
  78                 out.println();
  79         }
  80 }