| /* |
| * Copyright 2000-2012 JetBrains s.r.o. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.intellij.openapi.vcs.changes.ui; |
| |
| import com.intellij.openapi.util.SystemInfo; |
| import com.intellij.openapi.util.io.FileUtil; |
| import com.intellij.openapi.util.io.FileUtilRt; |
| import com.intellij.openapi.util.text.StringUtil; |
| import com.intellij.openapi.vcs.FilePath; |
| import com.intellij.openapi.vcs.changes.Change; |
| import com.intellij.openapi.vcs.changes.ChangesUtil; |
| |
| import java.util.Comparator; |
| |
| public class ChangesComparator implements Comparator<Change> { |
| private static final ChangesComparator ourFlattenedInstance = new ChangesComparator(false); |
| private static final ChangesComparator ourTreeInstance = new ChangesComparator(true); |
| private final boolean myTreeCompare; |
| |
| public static ChangesComparator getInstance(boolean flattened) { |
| if (flattened) { |
| return ourFlattenedInstance; |
| } else { |
| return ourTreeInstance; |
| } |
| } |
| |
| private ChangesComparator(boolean treeCompare) { |
| myTreeCompare = treeCompare; |
| } |
| |
| public int compare(final Change o1, final Change o2) { |
| final FilePath filePath1 = ChangesUtil.getFilePath(o1); |
| final FilePath filePath2 = ChangesUtil.getFilePath(o2); |
| if (myTreeCompare) { |
| final String path1 = FileUtilRt.toSystemIndependentName(filePath1.getPath()); |
| final String path2 = FileUtilRt.toSystemIndependentName(filePath2.getPath()); |
| final int lastSlash1 = path1.lastIndexOf('/'); |
| final String parentPath1 = lastSlash1 >= 0 && !filePath1.isDirectory() ? path1.substring(0, lastSlash1) : path1; |
| final int lastSlash2 = path2.lastIndexOf('/'); |
| final String parentPath2 = lastSlash2 >= 0 && !filePath2.isDirectory() ? path2.substring(0, lastSlash2) : path2; |
| // subdirs precede files |
| if (FileUtil.isAncestor(parentPath2, parentPath1, true)) { |
| return -1; |
| } |
| else if (FileUtil.isAncestor(parentPath1, parentPath2, true)) { |
| return 1; |
| } |
| final int compare = StringUtil.compare(parentPath1, parentPath2, !SystemInfo.isFileSystemCaseSensitive); |
| if (compare != 0) { |
| return compare; |
| } |
| } |
| return filePath1.getName().compareToIgnoreCase(filePath2.getName()); |
| } |
| } |