src/TGitCache/CachedDirectory.h

   1 // TortoiseGit - a Windows shell extension for easy version control
   2
   3 // External Cache Copyright (C) 2005 - 2006, 2008 - TortoiseSVN
   4 // Copyright (C) 2008-2012 - TortoiseGit
   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 #pragma once
  21
  22 #include "StatusCacheEntry.h"
  23 #include "TGitPath.h"
  24
  25 /**
  26  * \ingroup TSVNCache
  27  * Holds the status for a folder and all files and folders directly inside
  28  * that folder.
  29  */
  30 #define GIT_CACHE_VERSION 2
  31
  32 class CCachedDirectory
  33 {
  34 public:
  35         typedef std::map<CTGitPath, CCachedDirectory *> CachedDirMap;
  36         typedef CachedDirMap::iterator ItDir;
  37
  38 public:
  39
  40         CCachedDirectory();
  41         CCachedDirectory(const CTGitPath& directoryPath);
  42         ~CCachedDirectory(void);
  43         CStatusCacheEntry GetStatusForMember(const CTGitPath& path, bool bRecursive, bool bFetch = true);
  44
  45         // If path is not emtpy, means fetch special file status.
  46         int EnumFiles(CTGitPath *path = NULL, bool isFull=true);
  47         CStatusCacheEntry GetOwnStatus(bool bRecursive);
  48         bool IsOwnStatusValid() const;
  49         void Invalidate();
  50         void RefreshStatus(bool bRecursive);
  51         void RefreshMostImportant();
  52         BOOL SaveToDisk(FILE * pFile);
  53         BOOL LoadFromDisk(FILE * pFile);
  54         /// Get the current full status of this folder
  55         git_wc_status_kind GetCurrentFullStatus() {return m_currentFullStatus;}
  56 private:
  57
  58         CStatusCacheEntry GetStatusFromCache(const CTGitPath &path, bool bRecursive);
  59         CStatusCacheEntry GetStatusFromGit(const CTGitPath &path, CString sProjectRoot);
  60
  61 //      static git_error_t* GetStatusCallback(void *baton, const char *path, git_wc_status2_t *status);
  62         static BOOL GetStatusCallback(const CString & path, git_wc_status_kind status,bool isDir, void *pUserData);
  63         void AddEntry(const CTGitPath& path, const git_wc_status2_t* pGitStatus, DWORD validuntil = 0);
  64         CString GetCacheKey(const CTGitPath& path);
  65         CString GetFullPathString(const CString& cacheKey);
  66         CStatusCacheEntry LookForItemInCache(const CTGitPath& path, bool &bFound);
  67         void UpdateChildDirectoryStatus(const CTGitPath& childDir, git_wc_status_kind childStatus);
  68         void UpdateParentsStatus(const CTGitPath& path, git_wc_status_kind childStatus);
  69
  70         // Calculate the complete, composite status from ourselves, our files, and our descendants
  71         git_wc_status_kind CalculateRecursiveStatus();
  72
  73         // Update our composite status and deal with things if it's changed
  74         void UpdateCurrentStatus();
  75
  76
  77 private:
  78         CComAutoCriticalSection m_critSec;
  79         CComAutoCriticalSection m_critSecPath;
  80
  81         CTGitPath       m_currentStatusFetchingPath;
  82         // The cache of files and directories within this directory
  83         typedef std::map<CString, CStatusCacheEntry> CacheEntryMap;
  84         CacheEntryMap m_entryCache;
  85
  86         /// A vector if iterators to child directories - used to put-together recursive status
  87         typedef std::map<CTGitPath, git_wc_status_kind>  ChildDirStatus;
  88         ChildDirStatus m_childDirectories;
  89
  90         // The path of the directory with this object looks after
  91         CTGitPath       m_directoryPath;
  92
  93         // The status of THIS directory (not a composite of children or members)
  94         CStatusCacheEntry m_ownStatus;
  95
  96         // Our current fully recursive status
  97         git_wc_status_kind  m_currentFullStatus;
  98
  99         // The most important status from all our file entries
 100         git_wc_status_kind m_mostImportantFileStatus;
 101
 102         bool m_bRecursive;              // used in the status callback
 103         friend class CGitStatusCache;
 104 };
 105