src/TortoiseProc/LogFile.cpp

   1 // TortoiseGit - a Windows shell extension for easy version control
   2
   3 // Copyright (C) 2007 - TortoiseSVN
   4
   5 // This program is free software; you can redistribute it and/or
   6 // modify it under the terms of the GNU General Public License
   7 // as published by the Free Software Foundation; either version 2
   8 // of the License, or (at your option) any later version.
   9
  10 // This program is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14
  15 // You should have received a copy of the GNU General Public License
  16 // along with this program; if not, write to the Free Software Foundation,
  17 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 //
  19 #include "StdAfx.h"
  20 #include "LogFile.h"
  21 #include "PathUtils.h"
  22
  23 CLogFile::CLogFile(void)
  24 {
  25         m_maxlines = CRegStdDWORD(_T("Software\\TortoiseGit\\MaxLinesInLogfile"), 4000);
  26 }
  27
  28 CLogFile::~CLogFile(void)
  29 {
  30 }
  31
  32 bool CLogFile::Open()
  33 {
  34         CTGitPath logfile = CTGitPath(CPathUtils::GetAppDataDirectory() + _T("\\logfile.txt"));
  35         return Open(logfile);
  36 }
  37
  38 bool CLogFile::Open(const CTGitPath& logfile)
  39 {
  40         m_lines.clear();
  41         m_logfile = logfile;
  42         if (!logfile.Exists())
  43         {
  44                 CPathUtils::MakeSureDirectoryPathExists(logfile.GetContainingDirectory().GetWinPath());
  45                 return true;
  46         }
  47
  48         try
  49         {
  50                 CString strLine;
  51                 CStdioFile file;
  52                 int retrycounter = 10;
  53                 // try to open the file for about two seconds - some other TSVN process might be
  54                 // writing to the file and we just wait a little for this to finish
  55                 while (!file.Open(logfile.GetWinPath(), CFile::typeText | CFile::modeRead | CFile::shareDenyWrite) && retrycounter)
  56                 {
  57                         retrycounter--;
  58                         Sleep(200);
  59                 }
  60                 if (retrycounter == 0)
  61                         return false;
  62
  63                 while (file.ReadString(strLine))
  64                 {
  65                         m_lines.push_back(strLine);
  66                 }
  67                 file.Close();
  68         }
  69         catch (CFileException* pE)
  70         {
  71                 TRACE("CFileException loading autolist regex file\n");
  72                 pE->Delete();
  73                 return false;
  74         }
  75         return true;
  76 }
  77
  78 bool CLogFile::AddLine(const CString& line)
  79 {
  80         m_lines.push_back(line);
  81         return true;
  82 }
  83
  84 bool CLogFile::Close()
  85 {
  86         AdjustSize();
  87         try
  88         {
  89                 CString strLine;
  90                 CStdioFile file;
  91
  92                 int retrycounter = 10;
  93                 // try to open the file for about two seconds - some other TSVN process might be
  94                 // writing to the file and we just wait a little for this to finish
  95                 while (!file.Open(m_logfile.GetWinPath(), CFile::typeText | CFile::modeWrite | CFile::modeCreate) && retrycounter)
  96                 {
  97                         retrycounter--;
  98                         Sleep(200);
  99                 }
 100                 if (retrycounter == 0)
 101                         return false;
 102
 103                 for (std::list<CString>::const_iterator it = m_lines.begin(); it != m_lines.end(); ++it)
 104                 {
 105                         file.WriteString(*it);
 106                         file.WriteString(_T("\n"));
 107                 }
 108                 file.Close();
 109         }
 110         catch (CFileException* pE)
 111         {
 112                 TRACE("CFileException loading autolist regex file\n");
 113                 pE->Delete();
 114                 return false;
 115         }
 116         return true;
 117 }
 118
 119 bool CLogFile::AddTimeLine()
 120 {
 121         CString sLine;
 122         // first add an empty line as a separator
 123         m_lines.push_back(sLine);
 124         // now add the time string
 125         TCHAR datebuf[4096] = {0};
 126         GetDateFormat(LOCALE_USER_DEFAULT, DATE_SHORTDATE, NULL, NULL, datebuf, 4096);
 127         sLine = datebuf;
 128         GetTimeFormat(LOCALE_USER_DEFAULT, 0, NULL, NULL, datebuf, 4096);
 129         sLine += _T(" - ");
 130         sLine += datebuf;
 131         m_lines.push_back(sLine);
 132         return true;
 133 }
 134
 135 void CLogFile::AdjustSize()
 136 {
 137         DWORD maxlines = m_maxlines;
 138
 139         while (m_lines.size() > maxlines)
 140         {
 141                 m_lines.pop_front();
 142         }
 143 }