src/TortoiseProc/Commands/PrevDiffCommand.cpp

   1 // TortoiseGit - a Windows shell extension for easy version control
   2
   3 // Copyright (C) 2008-2011, 2016, 2018-2019 - TortoiseGit
   4 // Copyright (C) 2007-2008 - TortoiseSVN
   5
   6 // This program is free software; you can redistribute it and/or
   7 // modify it under the terms of the GNU General Public License
   8 // as published by the Free Software Foundation; either version 2
   9 // of the License, or (at your option) any later version.
  10
  11 // This program is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License
  17 // along with this program; if not, write to the Free Software Foundation,
  18 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19 //
  20 #include "stdafx.h"
  21 #include "PrevDiffCommand.h"
  22 #include "GitDiff.h"
  23 #include "MessageBox.h"
  24 #include "ChangedDlg.h"
  25 #include "LogDlgHelper.h"
  26 #include "FileDiffDlg.h"
  27
  28 bool PrevDiffCommand::Execute()
  29 {
  30         if (!GitAdminDir::HasAdminDir(g_Git.m_CurrentDir))
  31         {
  32                 CMessageBox::Show(GetExplorerHWND(), IDS_NOWORKINGCOPY, IDS_APPNAME, MB_ICONERROR);
  33                 return false;
  34         }
  35
  36         bool bAlternativeTool = !!parser.HasKey(L"alternative");
  37         bool bUnified = !!parser.HasKey(L"unified");
  38         if (this->orgCmdLinePath.IsDirectory())
  39         {
  40                 CFileDiffDlg dlg;
  41                 theApp.m_pMainWnd = &dlg;
  42                 dlg.m_strRev1 = L"HEAD~1";
  43                 dlg.m_strRev2 = GIT_REV_ZERO;
  44                 dlg.m_sFilter = this->cmdLinePath.GetGitPathString();
  45
  46                 dlg.DoModal();
  47                 return true;
  48         }
  49
  50         CLogDataVector revs;
  51         CLogCache cache;
  52         revs.m_pLogCache = &cache;
  53         revs.ParserFromLog(&cmdLinePath, 2, CGit::LOG_INFO_ONLY_HASH);
  54
  55         if (revs.size() != 2)
  56         {
  57                 CMessageBox::Show(GetExplorerHWND(), IDS_ERR_NOPREVREVISION, IDS_APPNAME, MB_ICONERROR);
  58                 return false;
  59         }
  60
  61         return !!CGitDiff::Diff(GetExplorerHWND(), &cmdLinePath, &cmdLinePath, GIT_REV_ZERO, revs.GetGitRevAt(1).m_CommitHash.ToString(), false, bUnified, 0, bAlternativeTool);
  62 }