src/revisioncontrolplugin.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2009 by Peter Penz <peter.penz@gmx.at>                  *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  18  ***************************************************************************/
  19
  20 #include "revisioncontrolplugin.h"
  21
  22 #include <kfileitem.h>
  23 #include <QDir>
  24 #include <QString>
  25 #include <QTextStream>
  26
  27 RevisionControlPlugin::RevisionControlPlugin()
  28 {
  29 }
  30
  31 RevisionControlPlugin::~RevisionControlPlugin()
  32 {
  33 }
  34
  35 #include "revisioncontrolplugin.moc"
  36
  37 // ----------------------------------------------------------------------------
  38
  39 SubversionPlugin::SubversionPlugin() :
  40     m_directory(),
  41     m_revisionInfoHash()
  42 {
  43 }
  44
  45 SubversionPlugin::~SubversionPlugin()
  46 {
  47 }
  48
  49 QString SubversionPlugin::fileName() const
  50 {
  51     return ".svn";
  52 }
  53
  54 bool SubversionPlugin::beginRetrieval(const QString& directory)
  55 {
  56     Q_ASSERT(directory.endsWith('/'));
  57     m_directory = directory;
  58     const QString path = directory + ".svn/text-base/";
  59
  60     QDir dir(path);
  61     const QFileInfoList fileInfoList = dir.entryInfoList();
  62     const int size = fileInfoList.size();
  63     QString fileName;
  64     for (int i = 0; i < size; ++i) {
  65         fileName = fileInfoList.at(i).fileName();
  66         // Remove the ".svn-base" postfix to be able to compare the filenames
  67         // in a fast way in SubversionPlugin::revisionState().
  68         fileName.chop(sizeof(".svn-base") / sizeof(char) - 1);
  69         if (!fileName.isEmpty()) {
  70             RevisionInfo info;
  71             info.size = fileInfoList.at(i).size();
  72             info.timeStamp = fileInfoList.at(i).lastModified();
  73             m_revisionInfoHash.insert(fileName, info);
  74         }
  75     }
  76     return size > 0;
  77 }
  78
  79 void SubversionPlugin::endRetrieval()
  80 {
  81 }
  82
  83 RevisionControlPlugin::RevisionState SubversionPlugin::revisionState(const KFileItem& item)
  84 {
  85     const QString name = item.name();
  86     if (item.isDir()) {
  87         QFile file(m_directory + name + "/.svn");
  88         if (file.open(QIODevice::ReadOnly)) {
  89             file.close();
  90             // TODO...
  91             return RevisionControlPlugin::LatestRevision;
  92         }
  93     } else if (m_revisionInfoHash.contains(name)) {
  94         const RevisionInfo info = m_revisionInfoHash.value(item.name());
  95         const QDateTime localTimeStamp = item.time(KFileItem::ModificationTime).dateTime();
  96         const QDateTime versionedTimeStamp = info.timeStamp;
  97
  98         if (localTimeStamp > versionedTimeStamp) {
  99             if ((info.size != item.size()) || !equalRevisionContent(item.name())) {
 100                 return RevisionControlPlugin::EditingRevision;
 101             }
 102         } else if (localTimeStamp < versionedTimeStamp) {
 103             if ((info.size != item.size()) || !equalRevisionContent(item.name())) {
 104                 return RevisionControlPlugin::UpdateRequiredRevision;
 105             }
 106         }
 107         return  RevisionControlPlugin::LatestRevision;
 108     }
 109
 110     return RevisionControlPlugin::LocalRevision;
 111 }
 112
 113 QList<QAction*> SubversionPlugin::contextMenuActions(const KFileItemList& items) const
 114 {
 115     Q_UNUSED(items);
 116     // TODO...
 117     return QList<QAction*>();
 118 }
 119
 120 bool SubversionPlugin::equalRevisionContent(const QString& name) const
 121 {
 122     QFile localFile(m_directory + '/' + name);
 123     if (!localFile.open(QIODevice::ReadOnly | QIODevice::Text)) {
 124         return false;
 125     }
 126
 127     QFile revisionedFile(m_directory + "/.svn/text-base/" + name + ".svn-base");
 128     if (!revisionedFile.open(QIODevice::ReadOnly | QIODevice::Text)) {
 129         return false;
 130     }
 131
 132      QTextStream localText(&localFile);
 133      QTextStream revisionedText(&revisionedFile);
 134      while (!localText.atEnd() && !revisionedText.atEnd()) {
 135          if (localText.readLine() != revisionedText.readLine()) {
 136              return false;
 137          }
 138      }
 139
 140      return localText.atEnd() && revisionedText.atEnd();
 141 }
 142