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

   1 /*
   2  * Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org>
   3  *
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or
   7  * without modification, are permitted provided that the following
   8  * conditions are met:
   9  *
  10  * - Redistributions of source code must retain the above copyright
  11  *   notice, this list of conditions and the following disclaimer.
  12  *
  13  * - Redistributions in binary form must reproduce the above
  14  *   copyright notice, this list of conditions and the following
  15  *   disclaimer in the documentation and/or other materials provided
  16  *   with the distribution.
  17  *
  18  * - Neither the name of the Git Development Community nor the
  19  *   names of its contributors may be used to endorse or promote
  20  *   products derived from this software without specific prior
  21  *   written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
  24  * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
  25  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  26  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  28  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  29  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  30  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  31  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  32  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  33  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  35  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  36  */
  37
  38 package org.spearce.jgit.pgm;
  39
  40 import java.util.ArrayList;
  41 import java.util.List;
  42
  43 import org.spearce.jgit.lib.RefUpdate;
  44 import org.spearce.jgit.lib.TextProgressMonitor;
  45 import org.spearce.jgit.transport.FetchResult;
  46 import org.spearce.jgit.transport.RefSpec;
  47 import org.spearce.jgit.transport.TrackingRefUpdate;
  48 import org.spearce.jgit.transport.Transport;
  49
  50 class Fetch extends TextBuiltin {
  51         @Override
  52         void execute(String[] args) throws Exception {
  53                 int argi = 0;
  54                 for (; argi < args.length; argi++) {
  55                         final String a = args[argi];
  56                         if ("--".equals(a)) {
  57                                 argi++;
  58                                 break;
  59                         } else
  60                                 break;
  61                 }
  62                 if (args.length == 0)
  63                         args = new String[] { "origin" };
  64
  65                 final Transport tn = Transport.open(db, args[argi++]);
  66                 final List<RefSpec> toget = new ArrayList<RefSpec>();
  67                 for (; argi < args.length; argi++)
  68                         toget.add(new RefSpec(args[argi]));
  69                 final FetchResult r = tn.fetch(new TextProgressMonitor(), toget);
  70                 if (r.getTrackingRefUpdates().isEmpty())
  71                         return;
  72
  73                 out.print("From ");
  74                 out.print(tn.getURI());
  75                 out.println();
  76                 for (final TrackingRefUpdate u : r.getTrackingRefUpdates()) {
  77                         final char type = shortTypeOf(u.getResult());
  78                         final String longType = longTypeOf(u);
  79                         final String src = abbreviateRef(u.getRemoteName(), false);
  80                         final String dst = abbreviateRef(u.getLocalName(), true);
  81
  82                         out.format(" %c %-17s %-10s -> %s", type, longType, src, dst);
  83                         out.println();
  84                 }
  85         }
  86
  87         private static String longTypeOf(final TrackingRefUpdate u) {
  88                 final RefUpdate.Result r = u.getResult();
  89                 if (r == RefUpdate.Result.LOCK_FAILURE)
  90                         return "[lock fail]";
  91
  92                 if (r == RefUpdate.Result.IO_FAILURE)
  93                         return "[i/o error]";
  94
  95                 if (r == RefUpdate.Result.NEW) {
  96                         if (u.getRemoteName().startsWith(REFS_HEADS))
  97                                 return "[new branch]";
  98                         else if (u.getLocalName().startsWith(REFS_TAGS))
  99                                 return "[new tag]";
 100                         return "[new]";
 101                 }
 102
 103                 if (r == RefUpdate.Result.FORCED) {
 104                         final String aOld = abbreviateObject(u.getOldObjectId());
 105                         final String aNew = abbreviateObject(u.getNewObjectId());
 106                         return aOld + "..." + aNew;
 107                 }
 108
 109                 if (r == RefUpdate.Result.FAST_FORWARD) {
 110                         final String aOld = abbreviateObject(u.getOldObjectId());
 111                         final String aNew = abbreviateObject(u.getNewObjectId());
 112                         return aOld + ".." + aNew;
 113                 }
 114
 115                 if (r == RefUpdate.Result.REJECTED)
 116                         return "[rejected]";
 117                 if (r == RefUpdate.Result.NO_CHANGE)
 118                         return "[up to date]";
 119                 return "[" + r.name() + "]";
 120         }
 121
 122         private static char shortTypeOf(final RefUpdate.Result r) {
 123                 if (r == RefUpdate.Result.LOCK_FAILURE)
 124                         return '!';
 125                 if (r == RefUpdate.Result.IO_FAILURE)
 126                         return '!';
 127                 if (r == RefUpdate.Result.NEW)
 128                         return '*';
 129                 if (r == RefUpdate.Result.FORCED)
 130                         return '+';
 131                 if (r == RefUpdate.Result.FAST_FORWARD)
 132                         return ' ';
 133                 if (r == RefUpdate.Result.REJECTED)
 134                         return '!';
 135                 if (r == RefUpdate.Result.NO_CHANGE)
 136                         return '=';
 137                 return ' ';
 138         }
 139 }