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[tortoisegit/TortoiseGitJp.git] / src / Git / GitFolderStatus.cpp
1 // TortoiseSVN - a Windows shell extension for easy version control\r
2 \r
3 // Copyright (C) 2003-2008 - TortoiseSVN\r
4 \r
5 // This program is free software; you can redistribute it and/or\r
6 // modify it under the terms of the GNU General Public License\r
7 // as published by the Free Software Foundation; either version 2\r
8 // of the License, or (at your option) any later version.\r
9 \r
10 // This program is distributed in the hope that it will be useful,\r
11 // but WITHOUT ANY WARRANTY; without even the implied warranty of\r
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\r
13 // GNU General Public License for more details.\r
14 \r
15 // You should have received a copy of the GNU General Public License\r
16 // along with this program; if not, write to the Free Software Foundation,\r
17 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.\r
18 \r
19 #include "stdafx.h"\r
20 #include "ShellExt.h"\r
21 #include "GitFolderStatus.h"\r
22 #include "UnicodeUtils.h"\r
23 #include "..\TGitCache\CacheInterface.h"\r
24 #include "Git.h"\r
25 //#include "GitGlobal.h"\r
26 #include "gitindex.h"\r
27 \r
28 extern ShellCache g_ShellCache;\r
29 \r
30 extern CGitIndexFileMap g_IndexFileMap;\r
31 \r
32 // get / auto-alloc a string "copy"\r
33 \r
34 const char* StringPool::GetString (const char* value)\r
35 {\r
36         // special case: NULL pointer\r
37         \r
38         if (value == NULL)\r
39         {\r
40                 return emptyString;\r
41         }\r
42 \r
43         // do we already have a string with the desired value?\r
44 \r
45         pool_type::const_iterator iter = pool.find (value);\r
46         if (iter != pool.end())\r
47         {\r
48                 // yes -> return it\r
49                 return *iter;\r
50         }\r
51         \r
52         // no -> add one        \r
53         \r
54         const char* newString =  _strdup (value);\r
55         if (newString)\r
56         {\r
57                 pool.insert (newString);\r
58         }\r
59         else\r
60                 return emptyString;\r
61         \r
62         // .. and return it\r
63         \r
64         return newString;\r
65 }\r
66 \r
67 // clear internal pool\r
68 \r
69 void StringPool::clear()\r
70 {\r
71         // delete all strings\r
72 \r
73         for (pool_type::iterator iter = pool.begin(), end = pool.end(); iter != end; ++iter)\r
74         {\r
75                 free((void*)*iter);\r
76         }\r
77                 \r
78         // remove pointers from pool\r
79                 \r
80         pool.clear();\r
81 }\r
82 \r
83 CTGitPath       GitFolderStatus::folderpath;\r
84 \r
85 \r
86 GitFolderStatus::GitFolderStatus(void)\r
87 {\r
88         m_TimeStamp = 0;\r
89         emptyString[0] = 0;\r
90         invalidstatus.author = emptyString;\r
91         invalidstatus.askedcounter = -1;\r
92         invalidstatus.status = git_wc_status_none;\r
93         invalidstatus.url = emptyString;\r
94 //      invalidstatus.rev = -1;\r
95         invalidstatus.owner = emptyString;\r
96         invalidstatus.needslock = false;\r
97         invalidstatus.tree_conflict = false;\r
98         m_nCounter = 0;\r
99         dirstatus = NULL;\r
100         sCacheKey.reserve(MAX_PATH);\r
101 \r
102         //rootpool = svn_pool_create (NULL);\r
103 \r
104         m_hInvalidationEvent = CreateEvent(NULL, FALSE, FALSE, _T("TortoiseGitCacheInvalidationEvent"));\r
105 }\r
106 \r
107 GitFolderStatus::~GitFolderStatus(void)\r
108 {\r
109         //svn_pool_destroy(rootpool);\r
110         CloseHandle(m_hInvalidationEvent);\r
111 }\r
112 \r
113 const FileStatusCacheEntry * GitFolderStatus::BuildCache(const CTGitPath& filepath, const CString& sProjectRoot, BOOL bIsFolder, BOOL bDirectFolder)\r
114 {\r
115 //      svn_client_ctx_t *                      localctx;\r
116 //      apr_hash_t *                            statushash;\r
117 //      apr_pool_t *                            pool;\r
118         //git_error_t *                         err = NULL; // If svn_client_status comes out through catch(...), err would else be unassigned\r
119         git_error_t err = 0;\r
120 \r
121         //dont' build the cache if an instance of TortoiseProc is running\r
122         //since this could interfere with svn commands running (concurrent\r
123         //access of the .git directory).\r
124         if (g_ShellCache.BlockStatus())\r
125         {\r
126                 HANDLE TGitMutex = ::CreateMutex(NULL, FALSE, _T("TortoiseGitProc.exe"));       \r
127                 if (TGitMutex != NULL)\r
128                 {\r
129                         if (::GetLastError() == ERROR_ALREADY_EXISTS)\r
130                         {\r
131                                 ::CloseHandle(TGitMutex);\r
132                                 return &invalidstatus;\r
133                         }\r
134                 }\r
135                 ::CloseHandle(TGitMutex);\r
136         }\r
137 \r
138 //      pool = svn_pool_create (rootpool);                              // create the memory pool\r
139 \r
140         ClearCache();\r
141 //      svn_error_clear(svn_client_create_context(&localctx, pool));\r
142         // set up the configuration\r
143         // Note: I know this is an 'expensive' call, but without this, ignores\r
144         // done in the global ignore pattern won't show up.\r
145         if (g_ShellCache.ShowIgnoredOverlay())\r
146 ;//             svn_error_clear(svn_config_get_config (&(localctx->config), g_pConfigDir, pool));\r
147 \r
148         // strings pools are unused, now -> we may clear them\r
149         \r
150         authors.clear();\r
151         urls.clear();\r
152         owners.clear();\r
153         \r
154         ATLTRACE2(_T("building cache for %s\n"), filepath);\r
155         if (bIsFolder)\r
156         {\r
157                 if (bDirectFolder)\r
158                 {\r
159                         // NOTE: see not in GetFullStatus about project inside another project, we should only get here when\r
160                         //       that occurs, and this is not correctly handled yet\r
161 \r
162                         // initialize record members\r
163 //                      dirstat.rev = -1;\r
164                         dirstat.status = git_wc_status_none;\r
165                         dirstat.author = authors.GetString(NULL);\r
166                         dirstat.url = urls.GetString(NULL);\r
167                         dirstat.owner = owners.GetString(NULL);\r
168                         dirstat.askedcounter = GITFOLDERSTATUS_CACHETIMES;\r
169                         dirstat.needslock = false;\r
170                         dirstat.tree_conflict = false;\r
171 \r
172                         dirstatus = NULL;\r
173 //                      statushash = apr_hash_make(pool);\r
174 //                      git_revnum_t youngest = GIT_INVALID_REVNUM;\r
175 //                      git_opt_revision_t rev;\r
176 //                      rev.kind = git_opt_revision_unspecified;\r
177                         try\r
178                         {\r
179                                 folderpath = filepath;\r
180 \r
181                                 /*err = svn_client_status4 (&youngest,\r
182                                         filepath.GetDirectory().GetSVNApiPath(pool),\r
183                                         &rev,\r
184                                         findfolderstatus,\r
185                                         this,\r
186                                         svn_depth_empty,//depth\r
187                                         TRUE,           //getall\r
188                                         FALSE,          //update\r
189                                         TRUE,           //noignore\r
190                                         FALSE,          //ignore externals\r
191                                         NULL,\r
192                                         localctx,\r
193                                         pool);*/\r
194                         }\r
195                         catch ( ... )\r
196                         {\r
197                                 dirstatus = NULL;\r
198                         }\r
199 \r
200 \r
201                         if (dirstatus)\r
202                         {\r
203 /*                              if (dirstatus->entry)\r
204                                 {\r
205                                         dirstat.author = authors.GetString (dirstatus->entry->cmt_author);\r
206                                         dirstat.url = authors.GetString (dirstatus->entry->url);\r
207                                         dirstat.rev = dirstatus->entry->cmt_rev;\r
208                                         dirstat.owner = owners.GetString(dirstatus->entry->lock_owner);\r
209                                 }*/\r
210                                 dirstat.status = GitStatus::GetMoreImportant(dirstatus->text_status, dirstatus->prop_status);\r
211 //                              dirstat.tree_conflict = dirstatus->tree_conflict != NULL;\r
212                         }\r
213                         m_cache[filepath.GetWinPath()] = dirstat;\r
214                         m_TimeStamp = GetTickCount();\r
215 //                      svn_error_clear(err);\r
216 //                      svn_pool_destroy (pool);                                //free allocated memory\r
217                         return &dirstat;\r
218                 }\r
219         } // if (bIsFolder) \r
220         \r
221         m_nCounter = 0;\r
222         \r
223         //Fill in the cache with\r
224         //all files inside the same folder as the asked file/folder is\r
225         //since subversion can do this in one step\r
226 //      localctx->auth_baton = NULL;\r
227 \r
228 //      statushash = apr_hash_make(pool);\r
229 //      git_revnum_t youngest = GIT_INVALID_REVNUM;\r
230 //      git_opt_revision_t rev;\r
231 //      rev.kind = git_opt_revision_unspecified;\r
232         try\r
233         {\r
234                 if (g_ShellCache.GetCacheType() == ShellCache::dll)\r
235                 {\r
236                         // gitindex.h based status\r
237 \r
238                         // extract the sub-path (relative to project root)\r
239                         CString sSubPath;\r
240                         CString s = filepath.GetWinPathString();\r
241                         if (s.GetLength() > sProjectRoot.GetLength())\r
242                         {\r
243                                         sSubPath = s.Right(s.GetLength() - sProjectRoot.GetLength() - 1/*otherwise it gets initial slash*/);\r
244                         }\r
245 \r
246                         git_wc_status_kind status;\r
247 \r
248                         err = g_IndexFileMap.GetFileStatus((CString&)sProjectRoot,sSubPath,&status,true,true,fillstatusmap_idx,this);\r
249                 }\r
250                 else\r
251                 {\r
252                         // extract the sub-path (relative to project root)\r
253 //MessageBox(NULL, filepath.GetDirectory().GetWinPathString(), sProjectRoot, MB_OK);\r
254                         LPCTSTR lpszSubPath = NULL;\r
255                         CString sSubPath;\r
256                         CString s = filepath.GetDirectory().GetWinPathString();\r
257                         if (s.GetLength() > sProjectRoot.GetLength())\r
258                         {\r
259                                 sSubPath = s.Right(s.GetLength() - sProjectRoot.GetLength() - 1/*otherwise it gets initial slash*/);\r
260                                 lpszSubPath = sSubPath;\r
261                         }\r
262 \r
263 //if (lpszSubPath) MessageBoxA(NULL, lpszSubPath, "BuildCache", MB_OK);\r
264 //MessageBoxA(NULL, CStringA(sProjectRoot), sSubPath, MB_OK);\r
265                         err = !wgEnumFiles(sProjectRoot, lpszSubPath, WGEFF_NoRecurse|WGEFF_FullPath|WGEFF_DirStatusAll, &fillstatusmap, this);\r
266 \r
267                         /*err = svn_client_status4 (&youngest,\r
268                                 filepath.GetDirectory().GetSVNApiPath(pool),\r
269                                 &rev,\r
270                                 fillstatusmap,\r
271                                 this,\r
272                                 svn_depth_immediates,           //depth\r
273                                 TRUE,           //getall\r
274                                 FALSE,          //update\r
275                                 TRUE,           //noignore\r
276                                 FALSE,          //ignore externals\r
277                                 NULL,\r
278                                 localctx,\r
279                                 pool);*/\r
280                 }\r
281         }\r
282         catch ( ... )\r
283         {\r
284         }\r
285 \r
286         // Error present if function is not under version control\r
287         if (err != NULL)\r
288         {\r
289 //              svn_error_clear(err);\r
290 //              svn_pool_destroy (pool);                                //free allocated memory\r
291                 return &invalidstatus;  \r
292         }\r
293 \r
294 //      svn_error_clear(err);\r
295 //      svn_pool_destroy (pool);                                //free allocated memory\r
296         m_TimeStamp = GetTickCount();\r
297         const FileStatusCacheEntry * ret = NULL;\r
298         FileStatusMap::const_iterator iter;\r
299         if ((iter = m_cache.find(filepath.GetWinPath())) != m_cache.end())\r
300         {\r
301                 ret = &iter->second;\r
302                 m_mostRecentPath = filepath;\r
303                 m_mostRecentStatus = ret;\r
304         }\r
305         else\r
306         {\r
307                 // for SUBST'ed drives, Subversion doesn't return a path with a backslash\r
308                 // e.g. G:\ but only G: when fetching the status. So search for that\r
309                 // path too before giving up.\r
310                 // This is especially true when right-clicking directly on a SUBST'ed\r
311                 // drive to get the context menu\r
312                 if (_tcslen(filepath.GetWinPath())==3)\r
313                 {\r
314                         if ((iter = m_cache.find((LPCTSTR)filepath.GetWinPathString().Left(2))) != m_cache.end())\r
315                         {\r
316                                 ret = &iter->second;\r
317                                 m_mostRecentPath = filepath;\r
318                                 m_mostRecentStatus = ret;\r
319                         }\r
320                 }               \r
321         }\r
322         if (ret)\r
323                 return ret;\r
324         return &invalidstatus;\r
325 }\r
326 \r
327 DWORD GitFolderStatus::GetTimeoutValue()\r
328 {\r
329         DWORD timeout = GITFOLDERSTATUS_CACHETIMEOUT;\r
330         DWORD factor = m_cache.size()/200;\r
331         if (factor==0)\r
332                 factor = 1;\r
333         return factor*timeout;\r
334 }\r
335 \r
336 const FileStatusCacheEntry * GitFolderStatus::GetFullStatus(const CTGitPath& filepath, BOOL bIsFolder, BOOL bColumnProvider)\r
337 {\r
338         const FileStatusCacheEntry * ret = NULL;\r
339 \r
340         CString sProjectRoot;\r
341         BOOL bHasAdminDir = g_ShellCache.HasSVNAdminDir(filepath.GetWinPath(), bIsFolder, &sProjectRoot);\r
342         \r
343         //no overlay for unversioned folders\r
344         if ((!bColumnProvider)&&(!bHasAdminDir))\r
345                 return &invalidstatus;\r
346         //for the SVNStatus column, we have to check the cache to see\r
347         //if it's not just unversioned but ignored\r
348         ret = GetCachedItem(filepath);\r
349         if ((ret)&&(ret->status == git_wc_status_unversioned)&&(bIsFolder)&&(bHasAdminDir))\r
350         {\r
351                 // an 'unversioned' folder, but with an ADMIN dir --> nested layout!\r
352                 // NOTE: this could be a sub-project in git, or just some standalone project inside of another, either way a TODO\r
353                 ret = BuildCache(filepath, sProjectRoot, bIsFolder, TRUE);\r
354                 if (ret)\r
355                         return ret;\r
356                 else\r
357                         return &invalidstatus;\r
358         }\r
359         if (ret)\r
360                 return ret;\r
361 \r
362         //if it's not in the cache and has no admin dir, then we assume\r
363         //it's not ignored too\r
364         if ((bColumnProvider)&&(!bHasAdminDir))\r
365                 return &invalidstatus;\r
366         ret = BuildCache(filepath, sProjectRoot, bIsFolder);\r
367         if (ret)\r
368                 return ret;\r
369         else\r
370                 return &invalidstatus;\r
371 }\r
372 \r
373 const FileStatusCacheEntry * GitFolderStatus::GetCachedItem(const CTGitPath& filepath)\r
374 {\r
375         sCacheKey.assign(filepath.GetWinPath());\r
376         FileStatusMap::const_iterator iter;\r
377         const FileStatusCacheEntry *retVal;\r
378 \r
379         if(m_mostRecentPath.IsEquivalentTo(CTGitPath(sCacheKey.c_str())))\r
380         {\r
381                 // We've hit the same result as we were asked for last time\r
382                 ATLTRACE2(_T("fast cache hit for %s\n"), filepath);\r
383                 retVal = m_mostRecentStatus;\r
384         }\r
385         else if ((iter = m_cache.find(sCacheKey)) != m_cache.end())\r
386         {\r
387                 ATLTRACE2(_T("cache found for %s\n"), filepath);\r
388                 retVal = &iter->second;\r
389                 m_mostRecentStatus = retVal;\r
390                 m_mostRecentPath = CTGitPath(sCacheKey.c_str());\r
391         }\r
392         else\r
393         {\r
394                 retVal = NULL;\r
395         }\r
396 \r
397         if(retVal != NULL)\r
398         {\r
399                 // We found something in a cache - check that the cache is not timed-out or force-invalidated\r
400                 DWORD now = GetTickCount();\r
401 \r
402                 if ((now >= m_TimeStamp)&&((now - m_TimeStamp) > GetTimeoutValue()))\r
403                 {\r
404                         // Cache is timed-out\r
405                         ATLTRACE("Cache timed-out\n");\r
406                         ClearCache();\r
407                         retVal = NULL;\r
408                 }\r
409                 else if(WaitForSingleObject(m_hInvalidationEvent, 0) == WAIT_OBJECT_0)\r
410                 {\r
411                         // TortoiseProc has just done something which has invalidated the cache\r
412                         ATLTRACE("Cache invalidated\n");\r
413                         ClearCache();\r
414                         retVal = NULL;\r
415                 }\r
416                 return retVal;\r
417         }\r
418         return NULL;\r
419 }\r
420 \r
421 BOOL GitFolderStatus::fillstatusmap(const struct wgFile_s *pFile, void *pUserData)\r
422 {\r
423         GitFolderStatus *Stat = (GitFolderStatus*)pUserData;\r
424 \r
425         FileStatusMap &cache = Stat->m_cache;\r
426         FileStatusCacheEntry s;\r
427         s.needslock = false;\r
428         s.tree_conflict = false;\r
429 \r
430         s.author = Stat->authors.GetString(NULL);\r
431         s.url = Stat->urls.GetString(NULL);\r
432         if (pFile->sha1)\r
433                 s.rev = ConvertHashToRevnum(pFile->sha1);\r
434         s.owner = Stat->owners.GetString(NULL);\r
435 \r
436         s.status = git_wc_status_none;\r
437 \r
438         //s.status = GitStatus::GetMoreImportant(s.status, status->text_status);\r
439         //s.status = GitStatus::GetMoreImportant(s.status, status->prop_status);\r
440         s.status = GitStatusFromWingit(pFile->nStatus);\r
441 \r
442         // TODO ?: s.blaha = pFile->nStage\r
443 \r
444         //s.lock = status->repos_lock;\r
445         //s.tree_conflict = (status->tree_conflict != NULL);\r
446 \r
447         s.askedcounter = GITFOLDERSTATUS_CACHETIMES;\r
448         stdstring str;\r
449         if (pFile->sFileName)\r
450         {\r
451                 str = pFile->sFileName;//CUnicodeUtils::StdGetUnicode(pFile->sFileName);\r
452                 std::replace(str.begin(), str.end(), '/', '\\');\r
453 //MessageBox(NULL, str.c_str(), _T(""), MB_OK);\r
454         }\r
455         else\r
456                 str = _T(" ");\r
457         cache[str] = s;\r
458 \r
459         return FALSE;\r
460 }\r
461 \r
462 void GitFolderStatus::fillstatusmap_idx(CString &path,git_wc_status_kind status,void *pUserData)\r
463 {\r
464         GitFolderStatus *Stat = (GitFolderStatus*)pUserData;\r
465 \r
466         FileStatusMap &cache = Stat->m_cache;\r
467         FileStatusCacheEntry s;\r
468         s.needslock = false;\r
469         s.tree_conflict = false;\r
470 \r
471         s.author = Stat->authors.GetString(NULL);\r
472         s.url = Stat->urls.GetString(NULL);\r
473 //      s.rev = -1;\r
474         s.owner = Stat->owners.GetString(NULL);\r
475 \r
476         s.status = status;\r
477 \r
478         //s.status = GitStatus::GetMoreImportant(s.status, status->text_status);\r
479         //s.status = GitStatus::GetMoreImportant(s.status, status->prop_status);\r
480         //s.status = GitStatusFromWingit(pFile->nStatus);\r
481 \r
482         // TODO ?: s.blaha = pFile->nStage\r
483 \r
484         //s.lock = status->repos_lock;\r
485         //s.tree_conflict = (status->tree_conflict != NULL);\r
486 \r
487         s.askedcounter = GITFOLDERSTATUS_CACHETIMES;\r
488         //stdstring str;\r
489         //if (pFile->sFileName)\r
490         //{\r
491         //      str = CUnicodeUtils::StdGetUnicode(pFile->sFileName);\r
492         //      std::replace(str.begin(), str.end(), '/', '\\');\r
493 //MessageBox(NULL, str.c_str(), _T(""), MB_OK);\r
494         //}\r
495         //else\r
496         //      str = _T(" ");\r
497         if( path.Right(1) == _T("\\"))\r
498         {\r
499                 path=path.Left(path.GetLength()-1);\r
500         }\r
501         stdstring str;\r
502         str=path;\r
503         cache[str] = s;\r
504 \r
505         return;\r
506 }\r
507 \r
508 #if 0\r
509 git_error_t* GitFolderStatus::fillstatusmap(void * baton, const char * path, git_wc_status2_t * status, apr_pool_t * /*pool*/)\r
510 {\r
511         GitFolderStatus * Stat = (GitFolderStatus *)baton;\r
512         FileStatusMap * cache = &Stat->m_cache;\r
513         FileStatusCacheEntry s;\r
514         s.needslock = false;\r
515         s.tree_conflict = false;\r
516         if ((status)&&(status->entry))\r
517         {\r
518                 s.author = Stat->authors.GetString(status->entry->cmt_author);\r
519                 s.url = Stat->urls.GetString(status->entry->url);\r
520                 s.rev = status->entry->cmt_rev;\r
521                 s.owner = Stat->owners.GetString(status->entry->lock_owner);\r
522                 if (status->entry->present_props)\r
523                         s.needslock = strstr(status->entry->present_props, "svn:needs-lock") ? true : false;\r
524         }\r
525         else\r
526         {\r
527                 s.author = Stat->authors.GetString(NULL);\r
528                 s.url = Stat->urls.GetString(NULL);\r
529                 s.rev = -1;\r
530                 s.owner = Stat->owners.GetString(NULL);\r
531         }\r
532         s.status = git_wc_status_none;\r
533         if (status)\r
534         {\r
535                 s.status = GitStatus::GetMoreImportant(s.status, status->text_status);\r
536                 s.status = GitStatus::GetMoreImportant(s.status, status->prop_status);\r
537                 s.lock = status->repos_lock;\r
538                 s.tree_conflict = (status->tree_conflict != NULL);\r
539         }\r
540         s.askedcounter = GITFOLDERSTATUS_CACHETIMES;\r
541         stdstring str;\r
542         if (path)\r
543         {\r
544                 str = CUnicodeUtils::StdGetUnicode(path);\r
545                 std::replace(str.begin(), str.end(), '/', '\\');\r
546         }\r
547         else\r
548                 str = _T(" ");\r
549         (*cache)[str] = s;\r
550 \r
551         return GIT_NO_ERROR;\r
552 }\r
553 \r
554 git_error_t* GitFolderStatus::findfolderstatus(void * baton, const char * path, git_wc_status2_t * status, apr_pool_t * /*pool*/)\r
555 {\r
556         GitFolderStatus * Stat = (GitFolderStatus *)baton;\r
557         if ((Stat)&&(Stat->folderpath.IsEquivalentTo(CTGitPath(CString(path)))))\r
558         {\r
559                 Stat->dirstatus = status;\r
560         }\r
561 \r
562         return GIT_NO_ERROR;\r
563 }\r
564 #endif\r
565 \r
566 void GitFolderStatus::ClearCache()\r
567 {\r
568         m_cache.clear();\r
569         m_mostRecentStatus = NULL;\r
570         m_mostRecentPath.Reset();\r
571         // If we're about to rebuild the cache, there's no point hanging on to \r
572         // an event which tells us that it's invalid\r
573         ResetEvent(m_hInvalidationEvent);\r
574 }\r