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

   1 /*
   2  * Copyright (C) 2008, Robin Rosenberg <robin.rosenberg@dewire.com>
   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 org.kohsuke.args4j.Argument;
  41 import org.kohsuke.args4j.Option;
  42 import org.spearce.jgit.errors.MissingObjectException;
  43 import org.spearce.jgit.lib.Constants;
  44 import org.spearce.jgit.lib.ObjectId;
  45 import org.spearce.jgit.lib.ObjectLoader;
  46 import org.spearce.jgit.lib.PersonIdent;
  47
  48 class Tag extends TextBuiltin {
  49         @Option(name = "-f", usage = "force replacing an existing tag")
  50         private boolean force;
  51
  52         @Option(name = "-m", metaVar = "message", usage = "tag message")
  53         private String message = "";
  54
  55         @Argument(index = 0, required = true, metaVar = "name")
  56         private String tagName;
  57
  58         @Argument(index = 1, metaVar = "object")
  59         private ObjectId object;
  60
  61         @Override
  62         protected void run() throws Exception {
  63                 if (object == null) {
  64                         object = db.resolve(Constants.HEAD);
  65                         if (object == null)
  66                                 throw die("Cannot resolve " + Constants.HEAD);
  67                 }
  68
  69                 if (!tagName.startsWith(Constants.TAGS_PREFIX + "/"))
  70                         tagName = Constants.TAGS_PREFIX + "/" + tagName;
  71                 if (!force && db.resolve(tagName) != null) {
  72                         throw die("fatal: tag '"
  73                                         + tagName.substring(Constants.TAGS_PREFIX.length() + 1)
  74                                         + "' exists");
  75                 }
  76
  77                 final ObjectLoader ldr = db.openObject(object);
  78                 if (ldr == null)
  79                         throw new MissingObjectException(object, "any");
  80
  81                 org.spearce.jgit.lib.Tag tag = new org.spearce.jgit.lib.Tag(db);
  82                 tag.setObjId(object);
  83                 tag.setType(Constants.typeString(ldr.getType()));
  84                 tag.setTagger(new PersonIdent(db));
  85                 tag.setMessage(message.replaceAll("\r", ""));
  86                 tag.setTag(tagName.substring(Constants.TAGS_PREFIX.length() + 1));
  87                 tag.tag();
  88         }
  89 }