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 @Command(common = true, usage = "Create a tag")
  49 class Tag extends TextBuiltin {
  50         @Option(name = "-f", usage = "force replacing an existing tag")
  51         private boolean force;
  52
  53         @Option(name = "-m", metaVar = "message", usage = "tag message")
  54         private String message = "";
  55
  56         @Argument(index = 0, required = true, metaVar = "name")
  57         private String tagName;
  58
  59         @Argument(index = 1, metaVar = "object")
  60         private ObjectId object;
  61
  62         @Override
  63         protected void run() throws Exception {
  64                 if (object == null) {
  65                         object = db.resolve(Constants.HEAD);
  66                         if (object == null)
  67                                 throw die("Cannot resolve " + Constants.HEAD);
  68                 }
  69
  70                 if (!tagName.startsWith(Constants.R_TAGS))
  71                         tagName = Constants.R_TAGS + tagName;
  72                 if (!force && db.resolve(tagName) != null) {
  73                         throw die("fatal: tag '"
  74                                         + tagName.substring(Constants.R_TAGS.length())
  75                                         + "' exists");
  76                 }
  77
  78                 final ObjectLoader ldr = db.openObject(object);
  79                 if (ldr == null)
  80                         throw new MissingObjectException(object, "any");
  81
  82                 org.spearce.jgit.lib.Tag tag = new org.spearce.jgit.lib.Tag(db);
  83                 tag.setObjId(object);
  84                 tag.setType(Constants.typeString(ldr.getType()));
  85                 tag.setTagger(new PersonIdent(db));
  86                 tag.setMessage(message.replaceAll("\r", ""));
  87                 tag.setTag(tagName.substring(Constants.R_TAGS.length()));
  88                 tag.tag();
  89         }
  90 }