org.spearce.jgit/src/org/spearce/jgit/lib/IndexDiff.java

   1 /*
   2  *  Copyright (C) 2007 David Watson <dwatson@mimvista.com>
   3  *
   4  *  This library is free software; you can redistribute it and/or
   5  *  modify it under the terms of the GNU Lesser General Public
   6  *  License, version 2.1, as published by the Free Software Foundation.
   7  *
   8  *  This library is distributed in the hope that it will be useful,
   9  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  *  Lesser General Public License for more details.
  12  *
  13  *  You should have received a copy of the GNU Lesser General Public
  14  *  License along with this library; if not, write to the Free Software
  15  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301
  16  */
  17
  18 package org.spearce.jgit.lib;
  19
  20 import java.io.IOException;
  21 import java.util.HashSet;
  22
  23 import org.spearce.jgit.lib.GitIndex.Entry;
  24
  25 public class IndexDiff {
  26         private GitIndex index;
  27         private Tree tree;
  28
  29         public IndexDiff(Tree tree, GitIndex index) {
  30                 this.tree = tree;
  31                 this.index = index;
  32         }
  33
  34         public void diff() throws IOException {
  35                 for (Entry entry : index.getMembers()) {
  36                         String filename = entry.getName();
  37 //                      if (checked.contains(filename))
  38 //                              continue;
  39
  40                         TreeEntry treeBlob = tree.findBlobMember(filename);
  41                         if (treeBlob == null) {
  42                                 added.add(filename);
  43                         } else if (entry.getObjectId() != null && !entry.getObjectId().equals(treeBlob.getId())) {
  44                                 changed.add(filename);
  45                         }
  46
  47                         checked.add(filename);
  48                 }
  49
  50                 tree.accept(new TreeVisitor() {
  51
  52                         public void visitSymlink(SymlinkTreeEntry s) throws IOException {
  53                         }
  54
  55                         public void visitFile(FileTreeEntry f) throws IOException {
  56                                 if (checked.contains(f.getFullName()))
  57                                         return;
  58                                 removed.add(f.getFullName());
  59                         }
  60
  61                         public void startVisitTree(Tree t) throws IOException {
  62                                 // TODO Auto-generated method stub
  63
  64                         }
  65
  66                         public void endVisitTree(Tree t) throws IOException {
  67                                 // TODO Auto-generated method stub
  68
  69                         }
  70
  71                 });
  72         }
  73
  74         private HashSet<String> checked = new HashSet<String>();
  75         private HashSet<String> added = new HashSet<String>();
  76         private HashSet<String> changed = new HashSet<String>();
  77         private HashSet<String> removed = new HashSet<String>();
  78
  79         public HashSet<String> getAdded() {
  80                 return added;
  81         }
  82
  83         public HashSet<String> getChanged() {
  84                 return changed;
  85         }
  86
  87         public HashSet<String> getRemoved() {
  88                 return removed;
  89         }
  90 }