org.spearce.jgit.pgm/src/org/spearce/jgit/pgm/Log.java

   1 /*
   2  * Copyright (C) 2006, Robin Rosenberg <robin.rosenberg@dewire.com>
   3  * Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org>
   4  *
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or
   8  * without modification, are permitted provided that the following
   9  * conditions are met:
  10  *
  11  * - Redistributions of source code must retain the above copyright
  12  *   notice, this list of conditions and the following disclaimer.
  13  *
  14  * - Redistributions in binary form must reproduce the above
  15  *   copyright notice, this list of conditions and the following
  16  *   disclaimer in the documentation and/or other materials provided
  17  *   with the distribution.
  18  *
  19  * - Neither the name of the Git Development Community nor the
  20  *   names of its contributors may be used to endorse or promote
  21  *   products derived from this software without specific prior
  22  *   written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
  25  * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
  26  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  27  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  28  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  29  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  30  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  31  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  32  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  33  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  34  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  36  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  37  */
  38
  39 package org.spearce.jgit.pgm;
  40
  41 import java.text.DateFormat;
  42 import java.text.SimpleDateFormat;
  43 import java.util.Collection;
  44 import java.util.Iterator;
  45 import java.util.Locale;
  46 import java.util.Map;
  47 import java.util.Set;
  48 import java.util.TimeZone;
  49
  50 import org.kohsuke.args4j.Option;
  51 import org.spearce.jgit.lib.AnyObjectId;
  52 import org.spearce.jgit.lib.PersonIdent;
  53 import org.spearce.jgit.lib.Ref;
  54 import org.spearce.jgit.revwalk.RevCommit;
  55 import org.spearce.jgit.revwalk.RevWalk;
  56
  57 @Command(common = true, usage = "View commit history")
  58 class Log extends RevWalkTextBuiltin {
  59         private final TimeZone myTZ = TimeZone.getDefault();
  60
  61         private final DateFormat fmt;
  62
  63         private Map<AnyObjectId, Set<Ref>> allRefsByPeeledObjectId;
  64
  65         @Option(name="--decorate", usage="Show ref names matching commits")
  66         private boolean decorate;
  67
  68         Log() {
  69                 fmt = new SimpleDateFormat("EEE MMM dd HH:mm:ss yyyy ZZZZZ", Locale.US);
  70         }
  71
  72         @Override
  73         protected RevWalk createWalk() {
  74                 RevWalk ret = super.createWalk();
  75                 if (decorate)
  76                         allRefsByPeeledObjectId = getRepository().getAllRefsByPeeledObjectId();
  77                 return ret;
  78         }
  79
  80         @Override
  81         protected void show(final RevCommit c) throws Exception {
  82                 out.print("commit ");
  83                 c.getId().copyTo(outbuffer, out);
  84                 if (decorate) {
  85                         Collection<Ref> list = allRefsByPeeledObjectId.get(c.copy());
  86                         if (list != null) {
  87                                 out.print(" (");
  88                                 for (Iterator<Ref> i = list.iterator(); i.hasNext(); ) {
  89                                         out.print(i.next().getOrigName());
  90                                         if (i.hasNext())
  91                                                 out.print(" ");
  92                                 }
  93                                 out.print(")");
  94                         }
  95                 }
  96                 out.println();
  97
  98                 final PersonIdent author = c.getAuthorIdent();
  99                 out.print("Author: ");
 100                 out.print(author.getName());
 101                 out.print(" <");
 102                 out.print(author.getEmailAddress());
 103                 out.print(">");
 104                 out.println();
 105
 106                 final TimeZone authorTZ = author.getTimeZone();
 107                 fmt.setTimeZone(authorTZ != null ? authorTZ : myTZ);
 108                 out.print("Date:   ");
 109                 out.print(fmt.format(author.getWhen()));
 110                 out.println();
 111
 112                 out.println();
 113                 final String[] lines = c.getFullMessage().split("\n");
 114                 for (final String s : lines) {
 115                         out.print("    ");
 116                         out.print(s);
 117                         out.println();
 118                 }
 119
 120                 out.println();
 121                 out.flush();
 122         }
 123 }