src/TortoiseMerge/WorkingFile.cpp

   1 // TortoiseGitMerge - a Diff/Patch program
   2
   3 // Copyright (C) 2017 - TortoiseGit
   4 // Copyright (C) 2006-2007, 2011-2014 - 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 "WorkingFile.h"
  22 #include "AppUtils.h"
  23 #include "PathUtils.h"
  24 #include "resource.h"
  25 #include "SmartHandle.h"
  26
  27 CWorkingFile::CWorkingFile()
  28 {
  29         ClearStoredAttributes();
  30 }
  31
  32 CWorkingFile::~CWorkingFile()
  33 {
  34 }
  35
  36 void CWorkingFile::SetFileName(const CString& newFilename)
  37 {
  38         m_sFilename = newFilename;
  39         m_sFilename.Replace('/', '\\');
  40         m_sDescriptiveName.Empty();
  41         ClearStoredAttributes();
  42 }
  43
  44 void CWorkingFile::SetDescriptiveName(const CString& newDescName)
  45 {
  46         m_sDescriptiveName = newDescName;
  47 }
  48
  49 CString CWorkingFile::GetDescriptiveName()
  50 {
  51         if (m_sDescriptiveName.IsEmpty())
  52         {
  53                 CString sDescriptiveName = CPathUtils::GetFileNameFromPath(m_sFilename);
  54                 WCHAR pathbuf[MAX_PATH] = {0};
  55                 PathCompactPathEx(pathbuf, sDescriptiveName, 50, 0);
  56                 sDescriptiveName = pathbuf;
  57                 return sDescriptiveName;
  58         }
  59         return m_sDescriptiveName;
  60 }
  61
  62 CString CWorkingFile::GetReflectedName()
  63 {
  64         return m_sReflectedName;
  65 }
  66
  67 void CWorkingFile::SetReflectedName(const CString& newReflectedName)
  68 {
  69         m_sReflectedName = newReflectedName;
  70 }
  71
  72 //
  73 // Make an empty file with this name
  74 void CWorkingFile::CreateEmptyFile()
  75 {
  76         CAutoFile hFile = CreateFile(m_sFilename, GENERIC_WRITE, 0, nullptr, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, nullptr);
  77 }
  78
  79 // Move the details of the specified file to the current one, and then mark the specified file
  80 // as out of use
  81 void CWorkingFile::TransferDetailsFrom(CWorkingFile& rightHandFile)
  82 {
  83         // We don't do this to files which are already in use
  84         ASSERT(!InUse());
  85
  86         m_sFilename = rightHandFile.m_sFilename;
  87         m_sDescriptiveName = rightHandFile.m_sDescriptiveName;
  88         rightHandFile.SetOutOfUse();
  89         m_attribs = rightHandFile.m_attribs;
  90 }
  91
  92 CString CWorkingFile::GetWindowName(UINT type) const
  93 {
  94         CString sErrMsg;
  95         // TortoiseMerge allows non-existing files to be used in a merge
  96         // Inform the user (in a non-intrusive way) if a file is absent
  97         if (! this->Exists())
  98         {
  99                 sErrMsg = CString(MAKEINTRESOURCE(IDS_NOTFOUNDVIEWTITLEINDICATOR));
 100         }
 101
 102         if(m_sDescriptiveName.IsEmpty())
 103         {
 104                 // We don't have a proper name - use the filename part of the path
 105                 // return the filename part of the path.
 106                 CString ret;
 107                 if (type)
 108                 {
 109                         ret.LoadString(type);
 110                         ret += L" - ";
 111                 }
 112                 ret += CPathUtils::GetFileNameFromPath(m_sFilename) + L' ' + sErrMsg;
 113                 return ret;
 114         }
 115         else if (sErrMsg.IsEmpty())
 116         {
 117                 return m_sDescriptiveName;
 118         }
 119         return m_sDescriptiveName + L' ' + sErrMsg;
 120 }
 121
 122 bool CWorkingFile::Exists() const
 123 {
 124         return (!!PathFileExists(m_sFilename));
 125 }
 126
 127 void CWorkingFile::SetOutOfUse()
 128 {
 129         m_sFilename.Empty();
 130         m_sDescriptiveName.Empty();
 131         ClearStoredAttributes();
 132 }
 133
 134
 135 bool CWorkingFile::HasSourceFileChanged() const
 136 {
 137         if (!InUse())
 138         {
 139                 return false;
 140         }
 141         WIN32_FILE_ATTRIBUTE_DATA attribs = {0};
 142         if (PathFileExists(m_sFilename))
 143         {
 144                 if (GetFileAttributesEx(m_sFilename, GetFileExInfoStandard, &attribs))
 145                 {
 146                         if ( (m_attribs.nFileSizeHigh != attribs.nFileSizeHigh) ||
 147                                 (m_attribs.nFileSizeLow != attribs.nFileSizeLow) )
 148                                 return true;
 149                         return ( (CompareFileTime(&m_attribs.ftCreationTime, &attribs.ftCreationTime)!=0) ||
 150                                 (CompareFileTime(&m_attribs.ftLastWriteTime, &attribs.ftLastWriteTime)!=0) );
 151                 }
 152         }
 153
 154         return false;
 155 }
 156
 157 void CWorkingFile::StoreFileAttributes()
 158 {
 159         ClearStoredAttributes();
 160
 161         WIN32_FILE_ATTRIBUTE_DATA attribs = {0};
 162         if (GetFileAttributesEx(m_sFilename, GetFileExInfoStandard, &attribs))
 163         {
 164                 m_attribs = attribs;
 165         }
 166 }
 167
 168 void CWorkingFile::ClearStoredAttributes()
 169 {
 170         static const WIN32_FILE_ATTRIBUTE_DATA attribsEmpty = {0};
 171         m_attribs = attribsEmpty;
 172 }
 173
 174 bool CWorkingFile::IsReadonly() const
 175 {
 176         return (m_attribs.dwFileAttributes != INVALID_FILE_ATTRIBUTES) && (m_attribs.dwFileAttributes & FILE_ATTRIBUTE_READONLY);
 177 }