org.spearce.jgit.pgm/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.List;
  41
  42 import org.kohsuke.args4j.Argument;
  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         @Argument(index = 0, metaVar = "uri-ish")
  52         private String remote = "origin";
  53
  54         @Argument(index = 1, metaVar = "refspec")
  55         private List<RefSpec> toget;
  56
  57         @Override
  58         protected void run() throws Exception {
  59                 final Transport tn = Transport.open(db, remote);
  60                 final FetchResult r;
  61                 try {
  62                         r = tn.fetch(new TextProgressMonitor(), toget);
  63                         if (r.getTrackingRefUpdates().isEmpty())
  64                                 return;
  65                 } finally {
  66                         tn.close();
  67                 }
  68
  69                 out.print("From ");
  70                 out.print(tn.getURI());
  71                 out.println();
  72                 for (final TrackingRefUpdate u : r.getTrackingRefUpdates()) {
  73                         final char type = shortTypeOf(u.getResult());
  74                         final String longType = longTypeOf(u);
  75                         final String src = abbreviateRef(u.getRemoteName(), false);
  76                         final String dst = abbreviateRef(u.getLocalName(), true);
  77
  78                         out.format(" %c %-17s %-10s -> %s", type, longType, src, dst);
  79                         out.println();
  80                 }
  81         }
  82
  83         private static String longTypeOf(final TrackingRefUpdate u) {
  84                 final RefUpdate.Result r = u.getResult();
  85                 if (r == RefUpdate.Result.LOCK_FAILURE)
  86                         return "[lock fail]";
  87
  88                 if (r == RefUpdate.Result.IO_FAILURE)
  89                         return "[i/o error]";
  90
  91                 if (r == RefUpdate.Result.NEW) {
  92                         if (u.getRemoteName().startsWith(REFS_HEADS))
  93                                 return "[new branch]";
  94                         else if (u.getLocalName().startsWith(REFS_TAGS))
  95                                 return "[new tag]";
  96                         return "[new]";
  97                 }
  98
  99                 if (r == RefUpdate.Result.FORCED) {
 100                         final String aOld = abbreviateObject(u.getOldObjectId());
 101                         final String aNew = abbreviateObject(u.getNewObjectId());
 102                         return aOld + "..." + aNew;
 103                 }
 104
 105                 if (r == RefUpdate.Result.FAST_FORWARD) {
 106                         final String aOld = abbreviateObject(u.getOldObjectId());
 107                         final String aNew = abbreviateObject(u.getNewObjectId());
 108                         return aOld + ".." + aNew;
 109                 }
 110
 111                 if (r == RefUpdate.Result.REJECTED)
 112                         return "[rejected]";
 113                 if (r == RefUpdate.Result.NO_CHANGE)
 114                         return "[up to date]";
 115                 return "[" + r.name() + "]";
 116         }
 117
 118         private static char shortTypeOf(final RefUpdate.Result r) {
 119                 if (r == RefUpdate.Result.LOCK_FAILURE)
 120                         return '!';
 121                 if (r == RefUpdate.Result.IO_FAILURE)
 122                         return '!';
 123                 if (r == RefUpdate.Result.NEW)
 124                         return '*';
 125                 if (r == RefUpdate.Result.FORCED)
 126                         return '+';
 127                 if (r == RefUpdate.Result.FAST_FORWARD)
 128                         return ' ';
 129                 if (r == RefUpdate.Result.REJECTED)
 130                         return '!';
 131                 if (r == RefUpdate.Result.NO_CHANGE)
 132                         return '=';
 133                 return ' ';
 134         }
 135 }