src/TortoiseProc/LogFile.cpp

   1 // TortoiseGit - a Windows shell extension for easy version control
   2
   3 // Copyright (C) 2008, 2013-2014, 2016 - TortoiseGit
   4 // Copyright (C) 2007 - 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 "LogFile.h"
  22 #include "PathUtils.h"
  23
  24 CLogFile::CLogFile(const CString& repo)
  25         : m_maxlines(CRegStdDWORD(L"Software\\TortoiseGit\\MaxLinesInLogfile", 4000))
  26         , m_sRepo(repo)
  27 {
  28 }
  29
  30 CLogFile::~CLogFile(void)
  31 {
  32 }
  33
  34 bool CLogFile::Open()
  35 {
  36         if (m_maxlines == 0)
  37                 return false;
  38         CTGitPath logfile = CTGitPath(CPathUtils::GetLocalAppDataDirectory() + L"logfile.txt");
  39         return Open(logfile);
  40 }
  41
  42 bool CLogFile::Open(const CTGitPath& logfile)
  43 {
  44         m_lines.clear();
  45         m_logfile = logfile;
  46         if (!logfile.Exists())
  47         {
  48                 CPathUtils::MakeSureDirectoryPathExists(logfile.GetContainingDirectory().GetWinPath());
  49                 return true;
  50         }
  51
  52         try
  53         {
  54                 CString strLine;
  55                 CStdioFile file;
  56                 int retrycounter = 10;
  57                 // try to open the file for about two seconds - some other TSVN process might be
  58                 // writing to the file and we just wait a little for this to finish
  59                 while (!file.Open(logfile.GetWinPath(), CFile::typeText | CFile::modeRead | CFile::shareDenyWrite) && retrycounter)
  60                 {
  61                         retrycounter--;
  62                         Sleep(200);
  63                 }
  64                 if (retrycounter == 0)
  65                         return false;
  66
  67                 while (file.ReadString(strLine))
  68                         m_lines.push_back(strLine);
  69                 file.Close();
  70         }
  71         catch (CFileException* pE)
  72         {
  73                 TRACE("CFileException loading autolist regex file\n");
  74                 pE->Delete();
  75                 return false;
  76         }
  77         return true;
  78 }
  79
  80 bool CLogFile::AddLine(const CString& line)
  81 {
  82         m_lines.push_back(line);
  83         return true;
  84 }
  85
  86 bool CLogFile::Close()
  87 {
  88         if (m_maxlines == 0)
  89                 return false;
  90
  91         AdjustSize();
  92         try
  93         {
  94                 CStdioFile file;
  95
  96                 int retrycounter = 10;
  97                 // try to open the file for about two seconds - some other TSVN process might be
  98                 // writing to the file and we just wait a little for this to finish
  99                 while (!file.Open(m_logfile.GetWinPath(), CFile::typeText | CFile::modeWrite | CFile::modeCreate) && retrycounter)
 100                 {
 101                         retrycounter--;
 102                         Sleep(200);
 103                 }
 104                 if (retrycounter == 0)
 105                         return false;
 106
 107                 for (const auto& line : m_lines)
 108                 {
 109                         file.WriteString(line);
 110                         file.WriteString(L"\n");
 111                 }
 112                 file.Close();
 113         }
 114         catch (CFileException* pE)
 115         {
 116                 TRACE("CFileException loading autolist regex file\n");
 117                 pE->Delete();
 118                 return false;
 119         }
 120         return true;
 121 }
 122
 123 bool CLogFile::AddTimeLine()
 124 {
 125         CString sLine;
 126         // first add an empty line as a separator
 127         m_lines.push_back(sLine);
 128         // now add the time string
 129         TCHAR datebuf[4096] = {0};
 130         GetDateFormat(LOCALE_USER_DEFAULT, DATE_SHORTDATE, nullptr, nullptr, datebuf, 4096);
 131         sLine = datebuf;
 132         GetTimeFormat(LOCALE_USER_DEFAULT, 0, nullptr, nullptr, datebuf, 4096);
 133         sLine += L" - ";
 134         sLine += datebuf;
 135         sLine += L" - ";
 136         sLine += m_sRepo;
 137         m_lines.push_back(sLine);
 138         return true;
 139 }
 140
 141 void CLogFile::AdjustSize()
 142 {
 143         DWORD maxlines = m_maxlines;
 144
 145         while (m_lines.size() > maxlines)
 146                 m_lines.pop_front();
 147 }