org.spearce.jgit.pgm/src/org/spearce/jgit/pgm/LsTree.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.io.File;
  41
  42 import org.spearce.jgit.lib.Constants;
  43 import org.spearce.jgit.lib.FileMode;
  44 import org.spearce.jgit.treewalk.FileTreeIterator;
  45 import org.spearce.jgit.treewalk.TreeWalk;
  46
  47 class LsTree extends TextBuiltin {
  48         @Override
  49         void execute(final String[] args) throws Exception {
  50                 final TreeWalk walk = new TreeWalk(db);
  51                 int argi = 0;
  52                 for (; argi < args.length; argi++) {
  53                         final String a = args[argi];
  54                         if ("--".equals(a)) {
  55                                 argi++;
  56                                 break;
  57                         } else if ("-r".equals(a))
  58                                 walk.setRecursive(true);
  59                         else
  60                                 break;
  61                 }
  62
  63                 if (argi == args.length)
  64                         throw die("usage: [-r] treename");
  65                 else if (argi + 1 < args.length)
  66                         throw die("too many arguments");
  67
  68                 walk.reset(); // drop the first empty tree, which we do not need here
  69                 final String n = args[argi];
  70                 if (is_WorkDir(n))
  71                         walk.addTree(new FileTreeIterator(new File(n)));
  72                 else
  73                         walk.addTree(resolve(n));
  74
  75                 while (walk.next()) {
  76                         final FileMode mode = walk.getFileMode(0);
  77                         if (mode == FileMode.TREE)
  78                                 out.print('0');
  79                         out.print(mode);
  80                         out.print(' ');
  81                         out.print(Constants.typeString(mode.getObjectType()));
  82
  83                         out.print(' ');
  84                         out.print(walk.getObjectId(0));
  85
  86                         out.print('\t');
  87                         out.print(walk.getPathString());
  88                         out.println();
  89                 }
  90         }
  91
  92         private boolean is_WorkDir(final String name) {
  93                 return new File(name).isDirectory();
  94         }
  95 }