src/Git/GitRev.cpp

   1 // TortoiseGit - a Windows shell extension for easy version control
   2
   3 // Copyright (C) 2008-2013 - TortoiseGit
   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
  20 #include "stdafx.h"
  21 #include "ATLComTime.h"
  22 #include "GitRev.h"
  23 #include "Git.h"
  24 #include "GitDLL.h"
  25 #include "UnicodeUtils.h"
  26
  27 class CException; //Just in case afx.h is not included (cannot be included in every project which uses this file)
  28
  29 // provide an ASSERT macro for when compiled without MFC
  30 #if !defined ASSERT
  31         // Don't use _asm here, it isn't supported by x64 version of compiler. In fact, MFC's ASSERT() is the same with _ASSERTE().
  32         #define ASSERT(x) _ASSERTE(x)
  33 #endif
  34
  35 typedef CComCritSecLock<CComCriticalSection> CAutoLocker;
  36
  37 GitRev::GitRev(void)
  38 {
  39         m_Action=0;
  40         m_IsFull = 0;
  41         m_IsUpdateing = 0;
  42         m_IsCommitParsed = 0;
  43         m_IsDiffFiles = 0;
  44         m_CallDiffAsync = NULL;
  45         m_IsSimpleListReady =0;
  46
  47         memset(&this->m_GitCommit,0,sizeof(GIT_COMMIT));
  48
  49         // fetch local machine timezone info
  50         if ( GetTimeZoneInformation( &m_TimeZone ) == TIME_ZONE_ID_INVALID )
  51         {
  52                 ASSERT(false);
  53         }
  54 }
  55
  56 GitRev::~GitRev(void)
  57 {
  58 }
  59
  60 #if 0
  61 GitRev::GitRev(GitRev & rev)
  62 {
  63 }
  64 GitRev& GitRev::operator=(GitRev &rev)
  65 {
  66         return *this;
  67 }
  68 #endif
  69 void GitRev::Clear()
  70 {
  71         this->m_Action=0;
  72         this->m_Files.Clear();
  73         this->m_Action=0;
  74         this->m_ParentHash.clear();
  75         m_CommitterName.Empty();
  76         m_CommitterEmail.Empty();
  77         m_Body.Empty();
  78         m_Subject.Empty();
  79         m_CommitHash.Empty();
  80         m_Ref.Empty();
  81         m_RefAction.Empty();
  82         m_Mark=0;
  83
  84 }
  85 int GitRev::CopyFrom(GitRev &rev,bool OmitParentAndMark)
  86 {
  87         m_AuthorName    =rev.m_AuthorName;
  88         m_AuthorEmail   =rev.m_AuthorEmail;
  89         m_AuthorDate    =rev.m_AuthorDate;
  90         m_CommitterName =rev.m_CommitterName;
  91         m_CommitterEmail=rev.m_CommitterEmail;
  92         m_CommitterDate =rev.m_CommitterDate;
  93         m_Subject               =rev.m_Subject;
  94         m_Body                  =rev.m_Body;
  95         m_CommitHash    =rev.m_CommitHash;
  96         m_Files                 =rev.m_Files;
  97         m_Action                =rev.m_Action;
  98         m_IsFull                =rev.m_IsFull;
  99
 100         if(!OmitParentAndMark)
 101         {
 102                 m_ParentHash    =rev.m_ParentHash;
 103                 m_Mark                  =rev.m_Mark;
 104         }
 105         return 0;
 106 }
 107
 108 CTime GitRev::ConverFromString(CString input)
 109 {
 110         // pick up date from string
 111         try
 112         {
 113                 COleDateTime tm(_wtoi(input.Mid(0,4)),
 114                                  _wtoi(input.Mid(5,2)),
 115                                  _wtoi(input.Mid(8,2)),
 116                                  _wtoi(input.Mid(11,2)),
 117                                  _wtoi(input.Mid(14,2)),
 118                                  _wtoi(input.Mid(17,2)));
 119                 if( tm.GetStatus() != COleDateTime::valid )
 120                         return CTime();//Error parsing time-string
 121
 122                 // pick up utc offset
 123                 CString sign = input.Mid(20,1);         // + or -
 124                 int hoursOffset =  _wtoi(input.Mid(21,2));
 125                 int minsOffset = _wtoi(input.Mid(23,2));
 126                 // convert to a fraction of a day
 127                 double offset = (hoursOffset*60 + minsOffset) / 1440.0; // 1440 mins = 1 day
 128                 if ( sign == "-" )
 129                 {
 130                         offset = -offset;
 131                 }
 132                 // we have to subtract this from the time given to get UTC
 133                 tm -= offset;
 134                 // get utc time as a SYSTEMTIME
 135                 SYSTEMTIME sysTime;
 136                 tm.GetAsSystemTime( sysTime );
 137                 // and convert to users local time
 138                 SYSTEMTIME local;
 139                 if ( SystemTimeToTzSpecificLocalTime( &m_TimeZone, &sysTime, &local ) )
 140                 {
 141                         sysTime = local;
 142                 }
 143                 else
 144                 {
 145                         ASSERT(false);  // this should not happen but leave time in utc if it does
 146                 }
 147                 // convert to CTime and return
 148                 return CTime( sysTime, -1 );
 149         }
 150         catch(CException* e)
 151         {
 152                 //Probably the date was something like 1970-01-01 00:00:00. _mktime64() doesnt like this.
 153                 //Dont let the application crash on this exception
 154
 155 #ifdef _AFX //CException classes are only defined when afx.h is included.
 156                         //When afx.h is not included, the exception is leaked.
 157                         //This will probably never happen because when CException is not defined, it cannot be thrown.
 158                 e->Delete();
 159 #else
 160                 UNREFERENCED_PARAMETER(e);
 161 #endif //ifdef _AFX
 162         }
 163         return CTime(); //Return an invalid time
 164 }
 165
 166 int GitRev::SafeGetSimpleList(CGit *git)
 167 {
 168         if(InterlockedExchange(&m_IsUpdateing,TRUE) == FALSE)
 169         {
 170                 m_SimpleFileList.clear();
 171                 git->CheckAndInitDll();
 172                 GIT_COMMIT commit;
 173                 GIT_COMMIT_LIST list;
 174                 GIT_HASH   parent;
 175                 memset(&commit,0,sizeof(GIT_COMMIT));
 176
 177                 CAutoLocker lock(g_Git.m_critGitDllSec);
 178
 179                 try
 180                 {
 181                         if(git_get_commit_from_hash(&commit, this->m_CommitHash.m_hash))
 182                                 return -1;
 183                 }
 184                 catch (char *)
 185                 {
 186                         return -1;
 187                 }
 188
 189                 int i=0;
 190                 bool isRoot = this->m_ParentHash.empty();
 191                 git_get_commit_first_parent(&commit,&list);
 192                 while(git_get_commit_next_parent(&list,parent) == 0 || isRoot)
 193                 {
 194                         GIT_FILE file=0;
 195                         int count=0;
 196                         try
 197                         {
 198                                 if(isRoot)
 199                                         git_root_diff(git->GetGitSimpleListDiff(), commit.m_hash, &file, &count, 0);
 200                                 else
 201                                         git_diff(git->GetGitSimpleListDiff(), parent, commit.m_hash, &file, &count, 0);
 202                         }
 203                         catch (char *)
 204                         {
 205                                 return -1;
 206                         }
 207
 208                         isRoot = false;
 209
 210                         CTGitPath path;
 211                         CString strnewname;
 212                         CString stroldname;
 213
 214                         for(int j=0;j<count;j++)
 215                         {
 216                                 path.Reset();
 217                                 char *newname;
 218                                 char *oldname;
 219
 220                                 strnewname.Empty();
 221                                 stroldname.Empty();
 222
 223                                 int mode,IsBin,inc,dec;
 224                                 try
 225                                 {
 226                                         git_get_diff_file(git->GetGitSimpleListDiff(), file, j, &newname, &oldname, &mode, &IsBin, &inc, &dec);
 227                                 }
 228                                 catch (char *)
 229                                 {
 230                                         return -1;
 231                                 }
 232
 233                                 git->StringAppend(&strnewname, (BYTE*)newname, CP_UTF8);
 234
 235                                 m_SimpleFileList.push_back(strnewname);
 236
 237                         }
 238                         git_diff_flush(git->GetGitSimpleListDiff());
 239                         i++;
 240                 }
 241
 242                 InterlockedExchange(&m_IsUpdateing,FALSE);
 243                 InterlockedExchange(&m_IsSimpleListReady, TRUE);
 244                 git_free_commit(&commit);
 245         }
 246
 247         return 0;
 248 }
 249 int GitRev::SafeFetchFullInfo(CGit *git)
 250 {
 251         if(InterlockedExchange(&m_IsUpdateing,TRUE) == FALSE)
 252         {
 253                 this->m_Files.Clear();
 254                 git->CheckAndInitDll();
 255                 GIT_COMMIT commit;
 256                 GIT_COMMIT_LIST list;
 257                 GIT_HASH   parent;
 258                 memset(&commit,0,sizeof(GIT_COMMIT));
 259
 260                 CAutoLocker lock(g_Git.m_critGitDllSec);
 261
 262                 try
 263                 {
 264                         if (git_get_commit_from_hash(&commit, this->m_CommitHash.m_hash))
 265                                 return -1;
 266                 }
 267                 catch (char *)
 268                 {
 269                         return -1;
 270                 }
 271
 272                 int i=0;
 273
 274                 git_get_commit_first_parent(&commit,&list);
 275                 bool isRoot = (list==NULL);
 276
 277                 while(git_get_commit_next_parent(&list,parent) == 0 || isRoot)
 278                 {
 279                         GIT_FILE file=0;
 280                         int count=0;
 281
 282                         try
 283                         {
 284                                 if (isRoot)
 285                                         git_root_diff(git->GetGitDiff(), this->m_CommitHash.m_hash, &file, &count, 1);
 286                                 else
 287                                         git_diff(git->GetGitDiff(), parent, commit.m_hash, &file, &count, 1);
 288                         }
 289                         catch (char *)
 290                         {
 291                                 git_free_commit(&commit);
 292                                 return -1;
 293                         }
 294                         isRoot = false;
 295
 296                         CTGitPath path;
 297                         CString strnewname;
 298                         CString stroldname;
 299
 300                         for(int j=0;j<count;j++)
 301                         {
 302                                 path.Reset();
 303                                 char *newname;
 304                                 char *oldname;
 305
 306                                 strnewname.Empty();
 307                                 stroldname.Empty();
 308
 309                                 int mode,IsBin,inc,dec;
 310                                 git_get_diff_file(git->GetGitDiff(),file,j,&newname,&oldname,
 311                                                 &mode,&IsBin,&inc,&dec);
 312
 313                                 git->StringAppend(&strnewname, (BYTE*)newname, CP_UTF8);
 314                                 git->StringAppend(&stroldname, (BYTE*)oldname, CP_UTF8);
 315
 316                                 path.SetFromGit(strnewname,&stroldname);
 317                                 path.ParserAction((BYTE)mode);
 318                                 path.m_ParentNo = i;
 319
 320                                 this->m_Action|=path.m_Action;
 321
 322                                 if(IsBin)
 323                                 {
 324                                         path.m_StatAdd=_T("-");
 325                                         path.m_StatDel=_T("-");
 326                                 }
 327                                 else
 328                                 {
 329                                         path.m_StatAdd.Format(_T("%d"),inc);
 330                                         path.m_StatDel.Format(_T("%d"),dec);
 331                                 }
 332                                 m_Files.AddPath(path);
 333                         }
 334                         git_diff_flush(git->GetGitDiff());
 335                         i++;
 336                 }
 337
 338
 339                 InterlockedExchange(&m_IsUpdateing,FALSE);
 340                 InterlockedExchange(&m_IsFull,TRUE);
 341                 git_free_commit(&commit);
 342         }
 343
 344         return 0;
 345 }
 346
 347 int GitRev::ParserParentFromCommit(GIT_COMMIT *commit)
 348 {
 349         this->m_ParentHash.clear();
 350         GIT_COMMIT_LIST list;
 351         GIT_HASH   parent;
 352
 353         git_get_commit_first_parent(commit,&list);
 354         while(git_get_commit_next_parent(&list,parent)==0)
 355         {
 356                 m_ParentHash.push_back(CGitHash((char *)parent));
 357         }
 358         return 0;
 359 }
 360
 361 int GitRev::ParserFromCommit(GIT_COMMIT *commit)
 362 {
 363         int encode =CP_UTF8;
 364
 365         if(commit->m_Encode != 0 && commit->m_EncodeSize != 0)
 366         {
 367                 CString str;
 368                 g_Git.StringAppend(&str, (BYTE*)commit->m_Encode, CP_UTF8, commit->m_EncodeSize);
 369                 encode = CUnicodeUtils::GetCPCode(str);
 370         }
 371
 372         this->m_CommitHash = (char*)commit->m_hash;
 373
 374         this->m_AuthorDate = commit->m_Author.Date;
 375
 376         this->m_AuthorEmail.Empty();
 377         g_Git.StringAppend(&m_AuthorEmail,(BYTE*)commit->m_Author.Email,encode,commit->m_Author.EmailSize);
 378
 379         this->m_AuthorName.Empty();
 380         g_Git.StringAppend(&m_AuthorName,(BYTE*)commit->m_Author.Name,encode,commit->m_Author.NameSize);
 381
 382         this->m_Body.Empty();
 383         g_Git.StringAppend(&m_Body,(BYTE*)commit->m_Body,encode,commit->m_BodySize);
 384
 385         this->m_CommitterDate = commit->m_Committer.Date;
 386
 387         this->m_CommitterEmail.Empty();
 388         g_Git.StringAppend(&m_CommitterEmail, (BYTE*)commit->m_Committer.Email,encode, commit->m_Committer.EmailSize);
 389
 390         this->m_CommitterName.Empty();
 391         g_Git.StringAppend(&m_CommitterName, (BYTE*)commit->m_Committer.Name,encode, commit->m_Committer.NameSize);
 392
 393         this->m_Subject.Empty();
 394         g_Git.StringAppend(&m_Subject, (BYTE*)commit->m_Subject,encode,commit->m_SubjectSize);
 395
 396         return 0;
 397 }
 398 void GitRev::DbgPrint()
 399 {
 400         ATLTRACE(_T("Commit %s\r\n"), this->m_CommitHash.ToString());
 401         for(unsigned int i=0;i<this->m_ParentHash.size();i++)
 402         {
 403                 ATLTRACE(_T("Parent %i %s"), i, m_ParentHash[i].ToString());
 404         }
 405         ATLTRACE(_T("\n"));
 406 }
 407
 408 int GitRev::GetParentFromHash(CGitHash &hash)
 409 {
 410         CAutoLocker lock(g_Git.m_critGitDllSec);
 411
 412         g_Git.CheckAndInitDll();
 413
 414         GIT_COMMIT commit;
 415         if(git_get_commit_from_hash( &commit, hash.m_hash))
 416                 return -1;
 417
 418         this->ParserParentFromCommit(&commit);
 419         git_free_commit(&commit);
 420
 421         this->m_CommitHash=hash;
 422
 423         return 0;
 424 }
 425 int GitRev::GetCommitFromHash(CGitHash &hash)
 426 {
 427         CAutoLocker lock(g_Git.m_critGitDllSec);
 428
 429         g_Git.CheckAndInitDll();
 430
 431         return GetCommitFromHash_withoutLock(hash);
 432 }
 433
 434 int GitRev::GetCommitFromHash_withoutLock(CGitHash &hash)
 435 {
 436         GIT_COMMIT commit;
 437         if(git_get_commit_from_hash( &commit, hash.m_hash))
 438                 return -1;
 439
 440         this->ParserFromCommit(&commit);
 441         git_free_commit(&commit);
 442
 443         return 0;
 444 }
 445
 446
 447 int GitRev::GetCommit(CString refname)
 448 {
 449         CAutoLocker lock(g_Git.m_critGitDllSec);
 450
 451         g_Git.CheckAndInitDll();
 452
 453         if(refname.GetLength() >= 8)
 454                 if(refname.Find(_T("00000000")) == 0)
 455                 {
 456                         this->m_CommitHash.Empty();
 457                         this->m_Subject=_T("Working Copy");
 458                         return 0;
 459                 }
 460         CStringA rev;
 461         rev= CUnicodeUtils::GetUTF8(g_Git.FixBranchName(refname));
 462         GIT_HASH sha;
 463
 464         if(git_get_sha1(rev.GetBuffer(),sha))
 465                 return -1;
 466
 467         CGitHash hash((char*)sha);
 468         GetCommitFromHash_withoutLock(hash);
 469         return 0;
 470 }
 471
 472 int GitRev::AddMergeFiles()
 473 {
 474         std::map<CString, int> map;
 475         std::map<CString, int>::iterator it;
 476
 477         for(int i=0;i<m_Files.GetCount();i++)
 478         {
 479                 if(map.find(m_Files[i].GetGitPathString()) == map.end())
 480                 {
 481                         map[m_Files[i].GetGitPathString()]=0;
 482                 }
 483                 else
 484                 {
 485                         map[m_Files[i].GetGitPathString()]++;
 486                 }
 487         }
 488
 489         for(it=map.begin();it!=map.end();it++)
 490         {
 491                 if(it->second)
 492                 {
 493                         CTGitPath path;
 494                         path.SetFromGit(it->first);
 495                         path.m_ParentNo = MERGE_MASK;
 496                         path.m_StatAdd=_T("-");
 497                         path.m_StatDel=_T("-");
 498                         path.m_Action = CTGitPath::LOGACTIONS_MERGED;
 499                         m_Files.AddPath(path);
 500                 }
 501         }
 502         return 0;
 503 }