src/TGitCache/CachedDirectory.cpp

   1 // TortoiseGit - a Windows shell extension for easy version control
   2
   3 // External Cache Copyright (C) 2005-2008 - 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 #include "StdAfx.h"
  21 #include ".\cacheddirectory.h"
  22 //#include "SVNHelpers.h"
  23 #include "GitStatusCache.h"
  24 #include "GitStatus.h"
  25 #include <set>
  26
  27 CCachedDirectory::CCachedDirectory(void)
  28 {
  29         m_currentFullStatus = m_mostImportantFileStatus = git_wc_status_none;
  30         m_bRecursive = true;
  31 }
  32
  33 CCachedDirectory::~CCachedDirectory(void)
  34 {
  35 }
  36
  37 CCachedDirectory::CCachedDirectory(const CTGitPath& directoryPath)
  38 {
  39         ATLASSERT(directoryPath.IsDirectory() || !PathFileExists(directoryPath.GetWinPath()));
  40
  41         m_directoryPath = directoryPath;
  42         m_directoryPath.GetGitPathString(); // make sure git path string is set
  43
  44         m_currentFullStatus = m_mostImportantFileStatus = git_wc_status_none;
  45         m_bRecursive = true;
  46 }
  47
  48 BOOL CCachedDirectory::SaveToDisk(FILE * pFile)
  49 {
  50         AutoLocker lock(m_critSec);
  51 #define WRITEVALUETOFILE(x) if (fwrite(&x, sizeof(x), 1, pFile)!=1) return false;
  52
  53         unsigned int value = GIT_CACHE_VERSION;
  54         WRITEVALUETOFILE(value);        // 'version' of this save-format
  55         value = (int)m_entryCache.size();
  56         WRITEVALUETOFILE(value);        // size of the cache map
  57         // now iterate through the maps and save every entry.
  58         for (CacheEntryMap::iterator I = m_entryCache.begin(); I != m_entryCache.end(); ++I)
  59         {
  60                 const CString& key = I->first;
  61                 value = key.GetLength();
  62                 WRITEVALUETOFILE(value);
  63                 if (value)
  64                 {
  65                         if (fwrite((LPCTSTR)key, sizeof(TCHAR), value, pFile)!=value)
  66                                 return false;
  67                         if (!I->second.SaveToDisk(pFile))
  68                                 return false;
  69                 }
  70         }
  71         value = (int)m_childDirectories.size();
  72         WRITEVALUETOFILE(value);
  73         for (ChildDirStatus::iterator I = m_childDirectories.begin(); I != m_childDirectories.end(); ++I)
  74         {
  75                 const CString& path = I->first.GetWinPathString();
  76                 value = path.GetLength();
  77                 WRITEVALUETOFILE(value);
  78                 if (value)
  79                 {
  80                         if (fwrite((LPCTSTR)path, sizeof(TCHAR), value, pFile)!=value)
  81                                 return false;
  82                         git_wc_status_kind status = I->second;
  83                         WRITEVALUETOFILE(status);
  84                 }
  85         }
  86 //      WRITEVALUETOFILE(m_propsFileTime);
  87         value = m_directoryPath.GetWinPathString().GetLength();
  88         WRITEVALUETOFILE(value);
  89         if (value)
  90         {
  91                 if (fwrite(m_directoryPath.GetWinPath(), sizeof(TCHAR), value, pFile)!=value)
  92                         return false;
  93         }
  94         if (!m_ownStatus.SaveToDisk(pFile))
  95                 return false;
  96         WRITEVALUETOFILE(m_currentFullStatus);
  97         WRITEVALUETOFILE(m_mostImportantFileStatus);
  98         return true;
  99 }
 100
 101 BOOL CCachedDirectory::LoadFromDisk(FILE * pFile)
 102 {
 103         AutoLocker lock(m_critSec);
 104 #define LOADVALUEFROMFILE(x) if (fread(&x, sizeof(x), 1, pFile)!=1) return false;
 105         try
 106         {
 107                 unsigned int value = 0;
 108                 LOADVALUEFROMFILE(value);
 109                 if (value != GIT_CACHE_VERSION)
 110                         return false;           // not the correct version
 111                 int mapsize = 0;
 112                 LOADVALUEFROMFILE(mapsize);
 113                 for (int i=0; i<mapsize; ++i)
 114                 {
 115                         LOADVALUEFROMFILE(value);
 116                         if (value > MAX_PATH)
 117                                 return false;
 118                         if (value)
 119                         {
 120                                 CString sKey;
 121                                 if (fread(sKey.GetBuffer(value+1), sizeof(TCHAR), value, pFile)!=value)
 122                                 {
 123                                         sKey.ReleaseBuffer(0);
 124                                         return false;
 125                                 }
 126                                 sKey.ReleaseBuffer(value);
 127                                 CStatusCacheEntry entry;
 128                                 if (!entry.LoadFromDisk(pFile))
 129                                         return false;
 130                                 m_entryCache[sKey] = entry;
 131                         }
 132                 }
 133                 LOADVALUEFROMFILE(mapsize);
 134                 for (int i=0; i<mapsize; ++i)
 135                 {
 136                         LOADVALUEFROMFILE(value);
 137                         if (value > MAX_PATH)
 138                                 return false;
 139                         if (value)
 140                         {
 141                                 CString sPath;
 142                                 if (fread(sPath.GetBuffer(value), sizeof(TCHAR), value, pFile)!=value)
 143                                 {
 144                                         sPath.ReleaseBuffer(0);
 145                                         return false;
 146                                 }
 147                                 sPath.ReleaseBuffer(value);
 148                                 git_wc_status_kind status;
 149                                 LOADVALUEFROMFILE(status);
 150                                 m_childDirectories[CTGitPath(sPath)] = status;
 151                         }
 152                 }
 153                 LOADVALUEFROMFILE(value);
 154                 if (value > MAX_PATH)
 155                         return false;
 156                 if (value)
 157                 {
 158                         CString sPath;
 159                         if (fread(sPath.GetBuffer(value+1), sizeof(TCHAR), value, pFile)!=value)
 160                         {
 161                                 sPath.ReleaseBuffer(0);
 162                                 return false;
 163                         }
 164                         sPath.ReleaseBuffer(value);
 165                         m_directoryPath.SetFromWin(sPath);
 166                         m_directoryPath.GetGitPathString(); // make sure git path string is set
 167                 }
 168                 if (!m_ownStatus.LoadFromDisk(pFile))
 169                         return false;
 170
 171                 LOADVALUEFROMFILE(m_currentFullStatus);
 172                 LOADVALUEFROMFILE(m_mostImportantFileStatus);
 173         }
 174         catch ( CAtlException )
 175         {
 176                 return false;
 177         }
 178         return true;
 179
 180 }
 181
 182
 183 CStatusCacheEntry CCachedDirectory::GetStatusFromCache(const CTGitPath& path, bool bRecursive)
 184 {
 185         if(path.IsDirectory())
 186         {
 187                 // We don't have directory status in our cache
 188                 // Ask the directory if it knows its own status
 189                 CCachedDirectory * dirEntry = CGitStatusCache::Instance().GetDirectoryCacheEntry(path);
 190                 if( dirEntry)
 191                 {
 192                         if (dirEntry->IsOwnStatusValid())
 193                                 return dirEntry->GetOwnStatus(bRecursive);
 194                         else
 195                         {
 196                                 /* cache have outof date, need crawl again*/
 197
 198                                 /*AutoLocker lock(dirEntry->m_critSec);
 199                                 ChildDirStatus::const_iterator it;
 200                                 for(it = dirEntry->m_childDirectories.begin(); it != dirEntry->m_childDirectories.end(); ++it)
 201                                 {
 202                                         CGitStatusCache::Instance().AddFolderForCrawling(it->first);
 203                                 }*/
 204
 205                                 CGitStatusCache::Instance().AddFolderForCrawling(path);
 206
 207                                 /*Return old status during crawling*/
 208                                 return dirEntry->GetOwnStatus(bRecursive);
 209                         }
 210                 }
 211                 else
 212                 {
 213                         CGitStatusCache::Instance().AddFolderForCrawling(path);
 214                 }
 215                 return CStatusCacheEntry();
 216         }
 217         else
 218         {
 219                 //All file ignored if under ignore directory
 220                 if (m_ownStatus.GetEffectiveStatus() == git_wc_status_ignored)
 221                         return CStatusCacheEntry(git_wc_status_ignored);
 222                 if (m_ownStatus.GetEffectiveStatus() == git_wc_status_unversioned)
 223                         return CStatusCacheEntry(git_wc_status_unversioned);
 224
 225                 // Look up a file in our own cache
 226                 AutoLocker lock(m_critSec);
 227                 CString strCacheKey = GetCacheKey(path);
 228                 CacheEntryMap::iterator itMap = m_entryCache.find(strCacheKey);
 229                 if(itMap != m_entryCache.end())
 230                 {
 231                         // We've hit the cache - check for timeout
 232                         if(!itMap->second.HasExpired((long)GetTickCount()))
 233                         {
 234                                 if(itMap->second.DoesFileTimeMatch(path.GetLastWriteTime()))
 235                                 {
 236                                         if ((itMap->second.GetEffectiveStatus()!=git_wc_status_missing)||(!PathFileExists(path.GetWinPath())))
 237                                         {
 238                                                 // Note: the filetime matches after a modified has been committed too.
 239                                                 // So in that case, we would return a wrong status (e.g. 'modified' instead
 240                                                 // of 'normal') here.
 241                                                 return itMap->second;
 242                                         }
 243                                 }
 244                         }
 245                 }
 246
 247                 CGitStatusCache::Instance().AddFolderForCrawling(path.GetContainingDirectory());
 248                 return CStatusCacheEntry();
 249         }
 250
 251 }
 252
 253 CStatusCacheEntry CCachedDirectory::GetStatusFromGit(const CTGitPath &path, CString sProjectRoot)
 254 {
 255         CString subpaths = path.GetGitPathString();
 256         if(subpaths.GetLength() >= sProjectRoot.GetLength())
 257         {
 258                 if(subpaths[sProjectRoot.GetLength()] == _T('/'))
 259                         subpaths=subpaths.Right(subpaths.GetLength() - sProjectRoot.GetLength()-1);
 260                 else
 261                         subpaths=subpaths.Right(subpaths.GetLength() - sProjectRoot.GetLength());
 262         }
 263
 264         GitStatus *pGitStatus = &CGitStatusCache::Instance().m_GitStatus;
 265         UNREFERENCED_PARAMETER(pGitStatus);
 266
 267         CGitHash head;
 268
 269         pGitStatus->GetHeadHash(sProjectRoot,head);
 270
 271         bool isVersion =true;
 272         pGitStatus->IsUnderVersionControl(sProjectRoot, subpaths, path.IsDirectory(), &isVersion);
 273         if(!isVersion)
 274         {       //untracked file
 275                 bool isIgnoreFileChanged=false;
 276
 277                 isIgnoreFileChanged = pGitStatus->IsGitReposChanged(sProjectRoot, subpaths, GIT_MODE_IGNORE);
 278
 279                 if( isIgnoreFileChanged)
 280                 {
 281                         pGitStatus->LoadIgnoreFile(sProjectRoot, subpaths);
 282                 }
 283
 284                 if(path.IsDirectory())
 285                 {
 286
 287                         CCachedDirectory * dirEntry = CGitStatusCache::Instance().GetDirectoryCacheEntry(path,
 288                                                                                         false); /* we needn't watch untracked directory*/
 289
 290                         if(dirEntry)
 291                         {
 292                                 AutoLocker lock(dirEntry->m_critSec);
 293
 294                                 git_wc_status_kind dirstatus = dirEntry->GetCurrentFullStatus() ;
 295                                 if( dirstatus == git_wc_status_none || dirstatus >= git_wc_status_normal || isIgnoreFileChanged )
 296                                 {/* status have not initialized*/
 297                                         git_wc_status2_t status2;
 298                                         bool isignore = false;
 299                                         pGitStatus->IsIgnore(sProjectRoot,subpaths,&isignore);
 300                                         status2.text_status = status2.prop_status =
 301                                                 (isignore? git_wc_status_ignored:git_wc_status_unversioned);
 302
 303                                         dirEntry->m_ownStatus.SetKind(git_node_dir);
 304                                         dirEntry->m_ownStatus.SetStatus(&status2);
 305
 306                                 }
 307                                 return dirEntry->m_ownStatus;
 308                         }
 309
 310                 }
 311                 else /* path is file */
 312                 {
 313                         AutoLocker lock(m_critSec);
 314                         CString strCacheKey = GetCacheKey(path);
 315
 316                         CacheEntryMap::iterator itMap = m_entryCache.find(strCacheKey);
 317                         if(itMap == m_entryCache.end() || isIgnoreFileChanged)
 318                         {
 319                                 git_wc_status2_t status2;
 320                                 bool isignore = false;
 321                                 pGitStatus->IsIgnore(sProjectRoot,subpaths,&isignore);
 322                                 status2.text_status = status2.prop_status =
 323                                         (isignore? git_wc_status_ignored:git_wc_status_unversioned);
 324                                 AddEntry(path, &status2);
 325                                 return m_entryCache[strCacheKey];
 326                         }
 327                         else
 328                         {
 329                                 return itMap->second;
 330                         }
 331                 }
 332                 return CStatusCacheEntry();
 333
 334         }
 335         else
 336         {
 337                 EnumFiles((CTGitPath*)&path, TRUE);
 338                 UpdateCurrentStatus();
 339                 return CStatusCacheEntry(m_ownStatus);
 340         }
 341
 342 }
 343
 344 /// bFetch is true, fetch all status, call by crawl.
 345 /// bFetch is false, get cache status, return quickly.
 346
 347 CStatusCacheEntry CCachedDirectory::GetStatusForMember(const CTGitPath& path, bool bRecursive,  bool bFetch /* = true */)
 348 {
 349         CString sProjectRoot;
 350         bool bIsVersionedPath;
 351
 352         bool bRequestForSelf = false;
 353         if(path.IsEquivalentToWithoutCase(m_directoryPath))
 354         {
 355                 bRequestForSelf = true;
 356                 AutoLocker lock(m_critSec);
 357                 // HasAdminDir might modify m_directoryPath, so we need to do it synchronized
 358                 bIsVersionedPath = m_directoryPath.HasAdminDir(&sProjectRoot);
 359         }
 360         else
 361                 bIsVersionedPath = path.HasAdminDir(&sProjectRoot);
 362
 363         // In all most circumstances, we ask for the status of a member of this directory.
 364         ATLASSERT(m_directoryPath.IsEquivalentToWithoutCase(path.GetContainingDirectory()) || bRequestForSelf);
 365
 366         //If is not version control path
 367         if( !bIsVersionedPath)
 368         {
 369                 ATLTRACE(_T("%s is not underversion control\n"), path.GetWinPath());
 370                 return CStatusCacheEntry();
 371         }
 372
 373         // We've not got this item in the cache - let's add it
 374         // We never bother asking SVN for the status of just one file, always for its containing directory
 375
 376         if (g_GitAdminDir.IsAdminDirPath(path.GetWinPathString()))
 377         {
 378                 // We're being asked for the status of an .git directory
 379                 // It's not worth asking for this
 380                 return CStatusCacheEntry();
 381         }
 382
 383
 384         if(bFetch)
 385         {
 386                 return GetStatusFromGit(path, sProjectRoot);
 387         }
 388         else
 389         {
 390                 return GetStatusFromCache(path, bRecursive);
 391         }
 392 }
 393
 394 CStatusCacheEntry CCachedDirectory::GetCacheStatusForMember(const CTGitPath& path)
 395 {
 396         // no disk access!
 397         AutoLocker lock(m_critSec);
 398         CacheEntryMap::iterator itMap = m_entryCache.find(GetCacheKey(path));
 399         if(itMap != m_entryCache.end())
 400                 return itMap->second;
 401
 402         return CStatusCacheEntry();
 403 }
 404
 405 int CCachedDirectory::EnumFiles(CTGitPath *path , bool IsFull)
 406 {
 407         CString sProjectRoot;
 408         if(path)
 409                 path->HasAdminDir(&sProjectRoot);
 410         else
 411                 m_directoryPath.HasAdminDir(&sProjectRoot);
 412
 413         ATLTRACE(_T("EnumFiles %s\n"), path->GetWinPath());
 414
 415         ATLASSERT( !m_directoryPath.IsEmpty() );
 416
 417         CString sSubPath;
 418
 419         CString s;
 420         if(path)
 421                 s=path->GetWinPath();
 422         else
 423                 s=m_directoryPath.GetDirectory().GetWinPathString();
 424
 425         if (s.GetLength() > sProjectRoot.GetLength())
 426         {
 427                 // skip initial slash if necessary
 428                 if(s[sProjectRoot.GetLength()] == _T('\\'))
 429                         sSubPath = s.Right(s.GetLength() - sProjectRoot.GetLength() -1);
 430                 else
 431                         sSubPath = s.Right(s.GetLength() - sProjectRoot.GetLength() );
 432         }
 433
 434         // strip "\" at the end, otherwise cache lookups for drives do not work correctly
 435         sProjectRoot.TrimRight(_T("\\"));
 436
 437         GitStatus *pStatus = &CGitStatusCache::Instance().m_GitStatus;
 438         UNREFERENCED_PARAMETER(pStatus);
 439         git_wc_status_kind status = git_wc_status_none;
 440
 441         if(!path->IsDirectory())
 442         {
 443                 bool assumeValid = false;
 444                 bool skipWorktree = false;
 445                 pStatus->GetFileStatus(sProjectRoot, sSubPath, &status, IsFull, false, true, GetStatusCallback, this, &assumeValid, &skipWorktree);
 446         }
 447         else
 448         {
 449                 m_mostImportantFileStatus = git_wc_status_none;
 450                 pStatus->EnumDirStatus(sProjectRoot, sSubPath, &status, IsFull, false, true, GetStatusCallback,this);
 451
 452                 // folders must not be displayed as added or deleted only as modified
 453                 if (status == git_wc_status_deleted || status == git_wc_status_added)
 454                         status = git_wc_status_modified;
 455                 // this is necessary, even if the m_mostImportantFileStatus is set in GetStatusCallback,
 456                 // however, if it's missing, deleted subdirectories won't mark parents as modified
 457                 m_mostImportantFileStatus = GitStatus::GetMoreImportant(m_mostImportantFileStatus, status);
 458
 459                 if (sSubPath.IsEmpty())
 460                 {
 461                         // request a shell notification for working trees which have not been examined before
 462                         if (m_currentFullStatus == git_wc_status_none)
 463                         {
 464                                 m_currentFullStatus = git_wc_status_normal;
 465                                 CGitStatusCache::Instance().UpdateShell(sProjectRoot);
 466                         }
 467                         m_ownStatus = git_wc_status_normal;
 468                 }
 469                 // otherwise folders which contain at least one ignored item gets displayed as ignored
 470                 // or: folders which were displayed as conflicted never recover from that state
 471                 else if (m_ownStatus.GetEffectiveStatus() == git_wc_status_ignored || m_ownStatus.GetEffectiveStatus() == git_wc_status_conflicted)
 472                         m_ownStatus = git_wc_status_normal;
 473         }
 474
 475         return 0;
 476 }
 477 void
 478 CCachedDirectory::AddEntry(const CTGitPath& path, const git_wc_status2_t* pGitStatus, DWORD validuntil /* = 0*/)
 479 {
 480         AutoLocker lock(m_critSec);
 481         if(path.IsDirectory())
 482         {
 483                 CCachedDirectory * childDir = CGitStatusCache::Instance().GetDirectoryCacheEntry(path);
 484                 if (childDir)
 485                 {
 486                         if ((childDir->GetCurrentFullStatus() != git_wc_status_missing)||(pGitStatus==NULL)||(pGitStatus->text_status != git_wc_status_unversioned))
 487                         {
 488                                 if(pGitStatus)
 489                                 {
 490                                         if(childDir->GetCurrentFullStatus() != GitStatus::GetMoreImportant(pGitStatus->prop_status, pGitStatus->text_status))
 491                                         {
 492                                                 CGitStatusCache::Instance().UpdateShell(path);
 493                                                 //ATLTRACE(_T("shell update for %s\n"), path.GetWinPath());
 494                                                 childDir->m_ownStatus.SetKind(git_node_dir);
 495                                                 childDir->m_ownStatus.SetStatus(pGitStatus);
 496                                         }
 497                                 }
 498                         }
 499                         childDir->m_ownStatus.SetKind(git_node_dir);
 500
 501
 502                 }
 503         }
 504         else
 505         {
 506                 CCachedDirectory * childDir = CGitStatusCache::Instance().GetDirectoryCacheEntry(path.GetContainingDirectory());
 507                 bool bNotified = false;
 508
 509                 if(!childDir)
 510                         return ;
 511
 512                 CString cachekey = GetCacheKey(path);
 513                 CacheEntryMap::iterator entry_it = childDir->m_entryCache.lower_bound(cachekey);
 514                 if (entry_it != childDir->m_entryCache.end() && entry_it->first == cachekey)
 515                 {
 516                         if (pGitStatus)
 517                         {
 518                                 if (entry_it->second.GetEffectiveStatus() > git_wc_status_none &&
 519                                         entry_it->second.GetEffectiveStatus() != GitStatus::GetMoreImportant(pGitStatus->prop_status, pGitStatus->text_status)
 520                                 )
 521                                 {
 522                                         bNotified =true;
 523                                 }
 524                         }
 525
 526                 }
 527                 else
 528                 {
 529                         entry_it = childDir->m_entryCache.insert(entry_it, std::make_pair(cachekey, CStatusCacheEntry()));
 530                         bNotified = true;
 531
 532                 }
 533                 entry_it->second = CStatusCacheEntry(pGitStatus, path.GetLastWriteTime(), path.IsReadOnly(), validuntil);
 534                 // TEMP(?): git status doesn't not have "entry" that contains node type, so manually set as file
 535                 entry_it->second.SetKind(git_node_file);
 536
 537                 if(bNotified)
 538                 {
 539                         CGitStatusCache::Instance().UpdateShell(path);
 540                         //ATLTRACE(_T("shell update for %s\n"), path.GetWinPath());
 541                 }
 542
 543                 //ATLTRACE(_T("Path Entry Add %s %s %s %d\n"), path.GetWinPath(), cachekey, m_directoryPath.GetWinPath(), pGitStatus->text_status);
 544         }
 545
 546         CCachedDirectory * parent = CGitStatusCache::Instance().GetDirectoryCacheEntry(path.GetContainingDirectory());
 547
 548         if(parent)
 549         {
 550                 if ((parent->GetCurrentFullStatus() != git_wc_status_missing)||(pGitStatus==NULL)||(pGitStatus->text_status != git_wc_status_unversioned))
 551                 {
 552                         if(pGitStatus)
 553                         {
 554                                 if(parent->GetCurrentFullStatus() < GitStatus::GetMoreImportant(pGitStatus->prop_status, pGitStatus->text_status))
 555                                 {
 556                                         CGitStatusCache::Instance().UpdateShell(parent->m_directoryPath);
 557                                         //ATLTRACE(_T("shell update for %s\n"), parent->m_directoryPath.GetWinPathString());
 558                                         parent->m_ownStatus.SetKind(git_node_dir);
 559                                         parent->m_ownStatus.SetStatus(pGitStatus);
 560                                 }
 561                         }
 562                 }
 563         }
 564 }
 565
 566
 567 CString
 568 CCachedDirectory::GetCacheKey(const CTGitPath& path)
 569 {
 570         // All we put into the cache as a key is just the end portion of the pathname
 571         // There's no point storing the path of the containing directory for every item
 572         return path.GetWinPathString().Mid(m_directoryPath.GetWinPathString().GetLength()).MakeLower().TrimLeft(_T("\\"));
 573 }
 574
 575 CString
 576 CCachedDirectory::GetFullPathString(const CString& cacheKey)
 577 {
 578         return m_directoryPath.GetWinPathString() + _T("\\") + cacheKey;
 579 }
 580
 581 BOOL CCachedDirectory::GetStatusCallback(const CString & path, git_wc_status_kind status,bool isDir, void *, bool assumeValid, bool skipWorktree)
 582 {
 583         git_wc_status2_t _status;
 584         git_wc_status2_t *status2 = &_status;
 585
 586         status2->prop_status = status2->text_status = status;
 587         status2->assumeValid = assumeValid;
 588         status2->skipWorktree = skipWorktree;
 589
 590         CTGitPath gitPath;
 591
 592         CString lowcasepath = path;
 593         lowcasepath.MakeLower();
 594         gitPath.SetFromUnknown(lowcasepath);
 595
 596         CCachedDirectory *pThis = CGitStatusCache::Instance().GetDirectoryCacheEntry(gitPath.GetContainingDirectory());
 597
 598         if(pThis == NULL)
 599                 return FALSE;
 600
 601 //      if(status->entry)
 602         {
 603                 if (isDir)
 604                 {       /*gitpath is directory*/
 605                         //if ( !gitPath.IsEquivalentToWithoutCase(pThis->m_directoryPath) )
 606                         {
 607                                 if (!gitPath.Exists())
 608                                 {
 609                                         ATLTRACE(_T("Miss dir %s \n"), gitPath.GetWinPath());
 610                                         pThis->m_mostImportantFileStatus = GitStatus::GetMoreImportant(pThis->m_mostImportantFileStatus, git_wc_status_deleted);
 611                                 }
 612
 613                                 if ( status <  git_wc_status_normal)
 614                                 {
 615                                         if( ::PathFileExists(path+_T("\\.git")))
 616                                         { // this is submodule
 617                                                 ATLTRACE(_T("skip submodule %s\n"), path);
 618                                                 return FALSE;
 619                                         }
 620                                 }
 621                                 if (pThis->m_bRecursive)
 622                                 {
 623                                         // Add any versioned directory, which is not our 'self' entry, to the list for having its status updated
 624 //OutputDebugStringA("AddFolderCrawl: ");OutputDebugStringW(svnPath.GetWinPathString());OutputDebugStringA("\r\n");
 625                                         if(status >= git_wc_status_normal)
 626                                                 CGitStatusCache::Instance().AddFolderForCrawling(gitPath);
 627                                 }
 628
 629                                 // Make sure we know about this child directory
 630                                 // This initial status value is likely to be overwritten from below at some point
 631                                 git_wc_status_kind s = GitStatus::GetMoreImportant(status2->text_status, status2->prop_status);
 632
 633                                 // folders must not be displayed as added or deleted only as modified
 634                                 if (s == git_wc_status_deleted || s == git_wc_status_added)
 635                                         s = git_wc_status_modified;
 636
 637                                 CCachedDirectory * cdir = CGitStatusCache::Instance().GetDirectoryCacheEntryNoCreate(gitPath);
 638                                 if (cdir)
 639                                 {
 640                                         // This child directory is already in our cache!
 641                                         // So ask this dir about its recursive status
 642                                         git_wc_status_kind st = GitStatus::GetMoreImportant(s, cdir->GetCurrentFullStatus());
 643                                         AutoLocker lock(pThis->m_critSec);
 644                                         pThis->m_childDirectories[gitPath] = st;
 645                                         ATLTRACE(_T("call 1 Update dir %s %d\n"), gitPath.GetWinPath(), st);
 646                                 }
 647                                 else
 648                                 {
 649                                         AutoLocker lock(pThis->m_critSec);
 650                                         // the child directory is not in the cache. Create a new entry for it in the cache which is
 651                                         // initially 'unversioned'. But we added that directory to the crawling list above, which
 652                                         // means the cache will be updated soon.
 653                                         CGitStatusCache::Instance().GetDirectoryCacheEntry(gitPath);
 654
 655                                         pThis->m_childDirectories[gitPath] = s;
 656                                         ATLTRACE(_T("call 2 Update dir %s %d\n"), gitPath.GetWinPath(), s);
 657                                 }
 658                         }
 659                 }
 660                 else /* gitpath is file*/
 661                 {
 662                         // Keep track of the most important status of all the files in this directory
 663                         // Don't include subdirectories in this figure, because they need to provide their
 664                         // own 'most important' value
 665                         if (status2->text_status == git_wc_status_deleted || status2->text_status == git_wc_status_added)
 666                         {
 667                                 // if just a file in a folder is deleted or added report back that the folder is modified and not deleted or added
 668                                 pThis->m_mostImportantFileStatus = GitStatus::GetMoreImportant(pThis->m_mostImportantFileStatus, git_wc_status_modified);
 669                         }
 670                         else
 671                         {
 672                                 pThis->m_mostImportantFileStatus = GitStatus::GetMoreImportant(pThis->m_mostImportantFileStatus, status2->text_status);
 673                                 pThis->m_mostImportantFileStatus = GitStatus::GetMoreImportant(pThis->m_mostImportantFileStatus, status2->prop_status);
 674                                 if ((status2->text_status == git_wc_status_unversioned)
 675                                         &&(CGitStatusCache::Instance().IsUnversionedAsModified()))
 676                                 {
 677                                         // treat unversioned files as modified
 678                                         if (pThis->m_mostImportantFileStatus != git_wc_status_added)
 679                                                 pThis->m_mostImportantFileStatus = GitStatus::GetMoreImportant(pThis->m_mostImportantFileStatus, git_wc_status_modified);
 680                                 }
 681                         }
 682                 }
 683         }
 684
 685         pThis->AddEntry(gitPath, status2);
 686
 687         return FALSE;
 688 }
 689
 690 bool
 691 CCachedDirectory::IsOwnStatusValid() const
 692 {
 693         return m_ownStatus.HasBeenSet() &&
 694                    !m_ownStatus.HasExpired(GetTickCount());
 695 }
 696
 697 void CCachedDirectory::Invalidate()
 698 {
 699         m_ownStatus.Invalidate();
 700 }
 701
 702 git_wc_status_kind CCachedDirectory::CalculateRecursiveStatus()
 703 {
 704         // Combine our OWN folder status with the most important of our *FILES'* status.
 705         git_wc_status_kind retVal = GitStatus::GetMoreImportant(m_mostImportantFileStatus, m_ownStatus.GetEffectiveStatus());
 706
 707         // Now combine all our child-directorie's status
 708         AutoLocker lock(m_critSec);
 709         ChildDirStatus::const_iterator it;
 710         for(it = m_childDirectories.begin(); it != m_childDirectories.end(); ++it)
 711         {
 712                 retVal = GitStatus::GetMoreImportant(retVal, it->second);
 713         }
 714
 715         return retVal;
 716 }
 717
 718 // Update our composite status and deal with things if it's changed
 719 void CCachedDirectory::UpdateCurrentStatus()
 720 {
 721         git_wc_status_kind newStatus = CalculateRecursiveStatus();
 722         ATLTRACE(_T("UpdateCurrentStatus %s new:%d old: %d\n"),
 723                 m_directoryPath.GetWinPath(),
 724                 newStatus, m_currentFullStatus);
 725
 726         if ( this->m_ownStatus.GetEffectiveStatus() < git_wc_status_normal )
 727         {
 728                 if (::PathFileExists(this->m_directoryPath.GetWinPathString()+_T("\\.git")))
 729                 {
 730                         //project root must be normal status at least.
 731                         ATLTRACE(_T("force update project root directory as normal status\n"));
 732                         this->m_ownStatus.ForceStatus(git_wc_status_normal);
 733                 }
 734         }
 735
 736         if ((newStatus != m_currentFullStatus) && m_ownStatus.IsVersioned())
 737         {
 738                 if ((m_currentFullStatus != git_wc_status_none)&&(m_ownStatus.GetEffectiveStatus() != git_wc_status_missing))
 739                 {
 740                         // Our status has changed - tell the shell
 741                         ATLTRACE(_T("Dir %s, status change from %d to %d, send shell notification\n"), m_directoryPath.GetWinPath(), m_currentFullStatus, newStatus);
 742                         CGitStatusCache::Instance().UpdateShell(m_directoryPath);
 743                 }
 744                 if (m_ownStatus.GetEffectiveStatus() != git_wc_status_missing)
 745                         m_currentFullStatus = newStatus;
 746                 else
 747                         m_currentFullStatus = git_wc_status_missing;
 748         }
 749         // And tell our parent, if we've got one...
 750         // we tell our parent *always* about our status, even if it hasn't
 751         // changed. This is to make sure that the parent has really our current
 752         // status - the parent can decide itself if our status has changed
 753         // or not.
 754         CTGitPath parentPath = m_directoryPath.GetContainingDirectory();
 755         if(!parentPath.IsEmpty())
 756         {
 757                 // We have a parent
 758                 // just version controled directory need to cache.
 759                 CString root1, root2;
 760                 if(parentPath.HasAdminDir(&root1) && m_directoryPath.HasAdminDir(&root2) && root1 == root2)
 761                 {
 762                         CCachedDirectory * cachedDir = CGitStatusCache::Instance().GetDirectoryCacheEntry(parentPath);
 763                         if (cachedDir)
 764                                 cachedDir->UpdateChildDirectoryStatus(m_directoryPath, m_currentFullStatus);
 765                 }
 766         }
 767 }
 768
 769
 770 // Receive a notification from a child that its status has changed
 771 void CCachedDirectory::UpdateChildDirectoryStatus(const CTGitPath& childDir, git_wc_status_kind childStatus)
 772 {
 773         git_wc_status_kind currentStatus = git_wc_status_none;
 774         {
 775                 AutoLocker lock(m_critSec);
 776                 currentStatus = m_childDirectories[childDir];
 777         }
 778         if ((currentStatus != childStatus)||(!IsOwnStatusValid()))
 779         {
 780                 {
 781                         AutoLocker lock(m_critSec);
 782                         m_childDirectories[childDir] = childStatus;
 783                 }
 784                 UpdateCurrentStatus();
 785         }
 786 }
 787
 788 CStatusCacheEntry CCachedDirectory::GetOwnStatus(bool bRecursive)
 789 {
 790         // Don't return recursive status if we're unversioned ourselves.
 791         if(bRecursive && m_ownStatus.GetEffectiveStatus() > git_wc_status_unversioned && m_ownStatus.GetEffectiveStatus() != git_wc_status_ignored)
 792         {
 793                 CStatusCacheEntry recursiveStatus(m_ownStatus);
 794                 UpdateCurrentStatus();
 795                 if (m_currentFullStatus == git_wc_status_deleted || m_currentFullStatus == git_wc_status_added)
 796                         m_currentFullStatus = git_wc_status_modified;
 797                 recursiveStatus.ForceStatus(m_currentFullStatus);
 798                 return recursiveStatus;
 799         }
 800         else
 801         {
 802                 return m_ownStatus;
 803         }
 804 }
 805
 806 void CCachedDirectory::RefreshStatus(bool bRecursive)
 807 {
 808         // Make sure that our own status is up-to-date
 809         GetStatusForMember(m_directoryPath,bRecursive);
 810
 811         AutoLocker lock(m_critSec);
 812         // We also need to check if all our file members have the right date on them
 813         CacheEntryMap::iterator itMembers;
 814         std::set<CTGitPath> refreshedpaths;
 815         DWORD now = GetTickCount();
 816         if (m_entryCache.empty())
 817                 return;
 818         for (itMembers = m_entryCache.begin(); itMembers != m_entryCache.end(); ++itMembers)
 819         {
 820                 if (itMembers->first)
 821                 {
 822                         CTGitPath filePath(m_directoryPath);
 823                         filePath.AppendPathString(itMembers->first);
 824                         std::set<CTGitPath>::iterator refr_it;
 825                         if ((!filePath.IsEquivalentToWithoutCase(m_directoryPath))&&
 826                                 (((refr_it = refreshedpaths.lower_bound(filePath)) == refreshedpaths.end()) || !filePath.IsEquivalentToWithoutCase(*refr_it)))
 827                         {
 828                                 if ((itMembers->second.HasExpired(now))||(!itMembers->second.DoesFileTimeMatch(filePath.GetLastWriteTime())))
 829                                 {
 830                                         lock.Unlock();
 831                                         // We need to request this item as well
 832                                         GetStatusForMember(filePath,bRecursive);
 833                                         // GetStatusForMember now has recreated the m_entryCache map.
 834                                         // So start the loop again, but add this path to the refreshed paths set
 835                                         // to make sure we don't refresh this path again. This is to make sure
 836                                         // that we don't end up in an endless loop.
 837                                         lock.Lock();
 838                                         refreshedpaths.insert(refr_it, filePath);
 839                                         itMembers = m_entryCache.begin();
 840                                         if (m_entryCache.empty())
 841                                                 return;
 842                                         continue;
 843                                 }
 844                                 else if ((bRecursive)&&(itMembers->second.IsDirectory()))
 845                                 {
 846                                         // crawl all sub folders too! Otherwise a change deep inside the
 847                                         // tree which has changed won't get propagated up the tree.
 848                                         CGitStatusCache::Instance().AddFolderForCrawling(filePath);
 849                                 }
 850                         }
 851                 }
 852         }
 853 }
 854
 855 void CCachedDirectory::RefreshMostImportant()
 856 {
 857         CacheEntryMap::iterator itMembers;
 858         git_wc_status_kind newStatus = m_ownStatus.GetEffectiveStatus();
 859         for (itMembers = m_entryCache.begin(); itMembers != m_entryCache.end(); ++itMembers)
 860         {
 861                 newStatus = GitStatus::GetMoreImportant(newStatus, itMembers->second.GetEffectiveStatus());
 862                 if (((itMembers->second.GetEffectiveStatus() == git_wc_status_unversioned)||(itMembers->second.GetEffectiveStatus() == git_wc_status_none))
 863                         &&(CGitStatusCache::Instance().IsUnversionedAsModified()))
 864                 {
 865                         // treat unversioned files as modified
 866                         if (newStatus != git_wc_status_added)
 867                                 newStatus = GitStatus::GetMoreImportant(newStatus, git_wc_status_modified);
 868                 }
 869         }
 870         if (newStatus != m_mostImportantFileStatus)
 871         {
 872                 ATLTRACE(_T("status change of path %s\n"), m_directoryPath.GetWinPath());
 873                 CGitStatusCache::Instance().UpdateShell(m_directoryPath);
 874         }
 875         m_mostImportantFileStatus = newStatus;
 876 }