src/VCBackend.cpp

   1 /**
   2  * \file VCBackend.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Lars Gullik Bjønnes
   7  * \author Pavel Sanda
   8  *
   9  * Full author contact details are available in file CREDITS.
  10  */
  11
  12 #include <config.h>
  13
  14 #include "VCBackend.h"
  15 #include "Buffer.h"
  16 #include "LyX.h"
  17 #include "FuncRequest.h"
  18
  19 #include "frontends/alert.h"
  20 #include "frontends/Application.h"
  21
  22 #include "support/convert.h"
  23 #include "support/debug.h"
  24 #include "support/filetools.h"
  25 #include "support/gettext.h"
  26 #include "support/lstrings.h"
  27 #include "support/Path.h"
  28 #include "support/Systemcall.h"
  29 #include "support/regex.h"
  30
  31 #include <fstream>
  32
  33 using namespace std;
  34 using namespace lyx::support;
  35
  36
  37
  38 namespace lyx {
  39
  40
  41 int VCS::doVCCommandCall(string const & cmd, FileName const & path)
  42 {
  43         LYXERR(Debug::LYXVC, "doVCCommandCall: " << cmd);
  44         Systemcall one;
  45         support::PathChanger p(path);
  46         return one.startscript(Systemcall::Wait, cmd, false);
  47 }
  48
  49
  50 int VCS::doVCCommand(string const & cmd, FileName const & path, bool reportError)
  51 {
  52         if (owner_)
  53                 owner_->setBusy(true);
  54
  55         int const ret = doVCCommandCall(cmd, path);
  56
  57         if (owner_)
  58                 owner_->setBusy(false);
  59         if (ret && reportError)
  60                 frontend::Alert::error(_("Revision control error."),
  61                         bformat(_("Some problem occured while running the command:\n"
  62                                   "'%1$s'."),
  63                         from_utf8(cmd)));
  64         return ret;
  65 }
  66
  67
  68 /////////////////////////////////////////////////////////////////////
  69 //
  70 // RCS
  71 //
  72 /////////////////////////////////////////////////////////////////////
  73
  74 RCS::RCS(FileName const & m)
  75 {
  76         master_ = m;
  77         scanMaster();
  78 }
  79
  80
  81 FileName const RCS::findFile(FileName const & file)
  82 {
  83         // Check if *,v exists.
  84         FileName tmp(file.absFileName() + ",v");
  85         LYXERR(Debug::LYXVC, "LyXVC: Checking if file is under rcs: " << tmp);
  86         if (tmp.isReadableFile()) {
  87                 LYXERR(Debug::LYXVC, "Yes, " << file << " is under rcs.");
  88                 return tmp;
  89         }
  90
  91         // Check if RCS/*,v exists.
  92         tmp = FileName(addName(addPath(onlyPath(file.absFileName()), "RCS"), file.absFileName()) + ",v");
  93         LYXERR(Debug::LYXVC, "LyXVC: Checking if file is under rcs: " << tmp);
  94         if (tmp.isReadableFile()) {
  95                 LYXERR(Debug::LYXVC, "Yes, " << file << " is under rcs.");
  96                 return tmp;
  97         }
  98
  99         return FileName();
 100 }
 101
 102
 103 void RCS::retrieve(FileName const & file)
 104 {
 105         LYXERR(Debug::LYXVC, "LyXVC::RCS: retrieve.\n\t" << file);
 106         doVCCommandCall("co -q -r " + quoteName(file.toFilesystemEncoding()),
 107                          FileName());
 108 }
 109
 110
 111 void RCS::scanMaster()
 112 {
 113         if (master_.empty())
 114                 return;
 115
 116         LYXERR(Debug::LYXVC, "LyXVC::RCS: scanMaster: " << master_);
 117
 118         ifstream ifs(master_.toFilesystemEncoding().c_str());
 119
 120         string token;
 121         bool read_enough = false;
 122
 123         while (!read_enough && ifs >> token) {
 124                 LYXERR(Debug::LYXVC, "LyXVC::scanMaster: current lex text: `"
 125                         << token << '\'');
 126
 127                 if (token.empty())
 128                         continue;
 129                 else if (token == "head") {
 130                         // get version here
 131                         string tmv;
 132                         ifs >> tmv;
 133                         tmv = rtrim(tmv, ";");
 134                         version_ = tmv;
 135                         LYXERR(Debug::LYXVC, "LyXVC: version found to be " << tmv);
 136                 } else if (contains(token, "access")
 137                            || contains(token, "symbols")
 138                            || contains(token, "strict")) {
 139                         // nothing
 140                 } else if (contains(token, "locks")) {
 141                         // get locker here
 142                         if (contains(token, ';')) {
 143                                 locker_ = "Unlocked";
 144                                 vcstatus = UNLOCKED;
 145                                 continue;
 146                         }
 147                         string tmpt;
 148                         string s1;
 149                         string s2;
 150                         do {
 151                                 ifs >> tmpt;
 152                                 s1 = rtrim(tmpt, ";");
 153                                 // tmp is now in the format <user>:<version>
 154                                 s1 = split(s1, s2, ':');
 155                                 // s2 is user, and s1 is version
 156                                 if (s1 == version_) {
 157                                         locker_ = s2;
 158                                         vcstatus = LOCKED;
 159                                         break;
 160                                 }
 161                         } while (!contains(tmpt, ';'));
 162
 163                 } else if (token == "comment") {
 164                         // we don't need to read any further than this.
 165                         read_enough = true;
 166                 } else {
 167                         // unexpected
 168                         LYXERR(Debug::LYXVC, "LyXVC::scanMaster(): unexpected token");
 169                 }
 170         }
 171 }
 172
 173
 174 void RCS::registrer(string const & msg)
 175 {
 176         string cmd = "ci -q -u -i -t-\"";
 177         cmd += msg;
 178         cmd += "\" ";
 179         cmd += quoteName(onlyFileName(owner_->absFileName()));
 180         doVCCommand(cmd, FileName(owner_->filePath()));
 181 }
 182
 183
 184 string RCS::checkIn(string const & msg)
 185 {
 186         int ret = doVCCommand("ci -q -u -m\"" + msg + "\" "
 187                     + quoteName(onlyFileName(owner_->absFileName())),
 188                     FileName(owner_->filePath()));
 189         return ret ? string() : "RCS: Proceeded";
 190 }
 191
 192
 193 bool RCS::checkInEnabled()
 194 {
 195         return owner_ && !owner_->isReadonly();
 196 }
 197
 198
 199 bool RCS::isCheckInWithConfirmation()
 200 {
 201         // FIXME one day common getDiff for all backends
 202         // docstring diff;
 203         // if (getDiff(file, diff) && diff.empty())
 204         //      return false;
 205
 206         FileName tmpf = FileName::tempName("lyxvcout");
 207         if (tmpf.empty()) {
 208                 LYXERR(Debug::LYXVC, "Could not generate logfile " << tmpf);
 209                 return true;
 210         }
 211
 212         doVCCommandCall("rcsdiff " + quoteName(owner_->absFileName())
 213                     + " > " + quoteName(tmpf.toFilesystemEncoding()),
 214                 FileName(owner_->filePath()));
 215
 216         if (tmpf.fileContents("UTF-8").empty())
 217                 return false;
 218
 219         return true;
 220 }
 221
 222
 223 string RCS::checkOut()
 224 {
 225         owner_->markClean();
 226         int ret = doVCCommand("co -q -l " + quoteName(onlyFileName(owner_->absFileName())),
 227                     FileName(owner_->filePath()));
 228         return ret ? string() : "RCS: Proceeded";
 229 }
 230
 231
 232 bool RCS::checkOutEnabled()
 233 {
 234         return owner_ && owner_->isReadonly();
 235 }
 236
 237
 238 string RCS::repoUpdate()
 239 {
 240         lyxerr << "Sorry, not implemented." << endl;
 241         return string();
 242 }
 243
 244
 245 bool RCS::repoUpdateEnabled()
 246 {
 247         return false;
 248 }
 249
 250
 251 string RCS::lockingToggle()
 252 {
 253         //FIXME this might be actually possible, study rcs -U, rcs -L.
 254         //State should be easy to get inside scanMaster.
 255         //It would fix #4370 and make rcs/svn usage even more closer.
 256         lyxerr << "Sorry, not implemented." << endl;
 257         return string();
 258 }
 259
 260
 261 bool RCS::lockingToggleEnabled()
 262 {
 263         return false;
 264 }
 265
 266
 267 void RCS::revert()
 268 {
 269         doVCCommand("co -f -u" + version_ + " "
 270                     + quoteName(onlyFileName(owner_->absFileName())),
 271                     FileName(owner_->filePath()));
 272         // We ignore changes and just reload!
 273         owner_->markClean();
 274 }
 275
 276
 277 bool RCS::isRevertWithConfirmation()
 278 {
 279         //FIXME owner && diff ?
 280         return true;
 281 }
 282
 283
 284 void RCS::undoLast()
 285 {
 286         LYXERR(Debug::LYXVC, "LyXVC: undoLast");
 287         doVCCommand("rcs -o" + version_ + " "
 288                     + quoteName(onlyFileName(owner_->absFileName())),
 289                     FileName(owner_->filePath()));
 290 }
 291
 292
 293 bool RCS::undoLastEnabled()
 294 {
 295         return true;
 296 }
 297
 298
 299 void RCS::getLog(FileName const & tmpf)
 300 {
 301         doVCCommand("rlog " + quoteName(onlyFileName(owner_->absFileName()))
 302                     + " > " + quoteName(tmpf.toFilesystemEncoding()),
 303                     FileName(owner_->filePath()));
 304 }
 305
 306
 307 bool RCS::toggleReadOnlyEnabled()
 308 {
 309         // This got broken somewhere along lfuns dispatch reorganization.
 310         // reloadBuffer would be needed after this, but thats problematic
 311         // since we are inside Buffer::dispatch.
 312         // return true;
 313         return false;
 314 }
 315
 316 string RCS::revisionInfo(LyXVC::RevisionInfo const info)
 317 {
 318         if (info == LyXVC::File)
 319                 return version_;
 320         return string();
 321 }
 322
 323
 324 bool RCS::prepareFileRevision(string const &revis, string & f)
 325 {
 326         string rev = revis;
 327
 328         if (isStrInt(rev)) {
 329                 int back = convert<int>(rev);
 330                 // if positive use as the last number in the whole revision string
 331                 if (back > 0) {
 332                         string base;
 333                         rsplit(version_, base , '.' );
 334                         rev = base + "." + rev;
 335                 }
 336                 if (back == 0)
 337                         rev = version_;
 338                 // we care about the last number from revision string
 339                 // in case of backward indexing
 340                 if (back < 0) {
 341                         string cur, base;
 342                         cur = rsplit(version_, base , '.' );
 343                         if (!isStrInt(cur))
 344                                 return false;
 345                         int want = convert<int>(cur) + back;
 346                         if (want <= 0)
 347                                 return false;
 348
 349                         rev = base + "." + convert<string>(want);
 350                 }
 351         }
 352
 353         FileName tmpf = FileName::tempName("lyxvcrev_" + rev + "_");
 354         if (tmpf.empty()) {
 355                 LYXERR(Debug::LYXVC, "Could not generate logfile " << tmpf);
 356                 return N_("Error: Could not generate logfile.");
 357         }
 358
 359         doVCCommand("co -p" + rev + " "
 360                       + quoteName(onlyFileName(owner_->absFileName()))
 361                       + " > " + quoteName(tmpf.toFilesystemEncoding()),
 362                 FileName(owner_->filePath()));
 363         if (tmpf.isFileEmpty())
 364                 return false;
 365
 366         f = tmpf.absFileName();
 367         return true;
 368 }
 369
 370
 371 bool RCS::prepareFileRevisionEnabled()
 372 {
 373         return true;
 374 }
 375
 376
 377 /////////////////////////////////////////////////////////////////////
 378 //
 379 // CVS
 380 //
 381 /////////////////////////////////////////////////////////////////////
 382
 383 CVS::CVS(FileName const & m, FileName const & f)
 384 {
 385         master_ = m;
 386         file_ = f;
 387         have_rev_info_ = false;
 388         scanMaster();
 389 }
 390
 391
 392 FileName const CVS::findFile(FileName const & file)
 393 {
 394         // First we look for the CVS/Entries in the same dir
 395         // where we have file.
 396         FileName const entries(onlyPath(file.absFileName()) + "/CVS/Entries");
 397         string const tmpf = '/' + onlyFileName(file.absFileName()) + '/';
 398         LYXERR(Debug::LYXVC, "LyXVC: Checking if file is under cvs in `" << entries
 399                              << "' for `" << tmpf << '\'');
 400         if (entries.isReadableFile()) {
 401                 // Ok we are at least in a CVS dir. Parse the CVS/Entries
 402                 // and see if we can find this file. We do a fast and
 403                 // dirty parse here.
 404                 ifstream ifs(entries.toFilesystemEncoding().c_str());
 405                 string line;
 406                 while (getline(ifs, line)) {
 407                         LYXERR(Debug::LYXVC, "\tEntries: " << line);
 408                         if (contains(line, tmpf))
 409                                 return entries;
 410                 }
 411         }
 412         return FileName();
 413 }
 414
 415
 416 void CVS::scanMaster()
 417 {
 418         LYXERR(Debug::LYXVC, "LyXVC::CVS: scanMaster. \n     Checking: " << master_);
 419         // Ok now we do the real scan...
 420         ifstream ifs(master_.toFilesystemEncoding().c_str());
 421         string name = onlyFileName(file_.absFileName());
 422         string tmpf = '/' + name + '/';
 423         LYXERR(Debug::LYXVC, "\tlooking for `" << tmpf << '\'');
 424         string line;
 425         static regex const reg("/(.*)/(.*)/(.*)/(.*)/(.*)");
 426         while (getline(ifs, line)) {
 427                 LYXERR(Debug::LYXVC, "\t  line: " << line);
 428                 if (contains(line, tmpf)) {
 429                         // Ok extract the fields.
 430                         smatch sm;
 431
 432                         regex_match(line, sm, reg);
 433
 434                         //sm[0]; // whole matched string
 435                         //sm[1]; // filename
 436                         version_ = sm.str(2);
 437                         string const file_date = sm.str(3);
 438
 439                         //sm[4]; // options
 440                         //sm[5]; // tag or tagdate
 441                         if (file_.isReadableFile()) {
 442                                 time_t mod = file_.lastModified();
 443                                 string mod_date = rtrim(asctime(gmtime(&mod)), "\n");
 444                                 LYXERR(Debug::LYXVC, "Date in Entries: `" << file_date
 445                                         << "'\nModification date of file: `" << mod_date << '\'');
 446                                 if (file_.isReadOnly()) {
 447                                         // readonly checkout is unlocked
 448                                         vcstatus = UNLOCKED;
 449                                 } else {
 450                                         FileName bdir(addPath(master_.onlyPath().absFileName(),"Base"));
 451                                         FileName base(addName(bdir.absFileName(),name));
 452                                         // if base version is existent "cvs edit" was used to lock
 453                                         vcstatus = base.isReadableFile() ? LOCKED : NOLOCKING;
 454                                 }
 455                         } else {
 456                                 vcstatus = NOLOCKING;
 457                         }
 458                         break;
 459                 }
 460         }
 461 }
 462
 463
 464 string const CVS::getTarget(OperationMode opmode) const
 465 {
 466         switch(opmode) {
 467         case Directory:
 468                 // in client server mode CVS does not like full path operand for directory operation
 469                 // since LyX switches to the repo dir "." is good enough as target
 470                 return ".";
 471         case File:
 472                 return quoteName(onlyFileName(owner_->absFileName()));
 473         }
 474         return string();
 475 }
 476
 477
 478 docstring CVS::toString(CvsStatus status) const
 479 {
 480         switch (status) {
 481         case UpToDate:
 482                 return _("Up-to-date");
 483         case LocallyModified:
 484                 return _("Locally Modified");
 485         case LocallyAdded:
 486                 return _("Locally Added");
 487         case NeedsMerge:
 488                 return _("Needs Merge");
 489         case NeedsCheckout:
 490                 return _("Needs Checkout");
 491         case NoCvsFile:
 492                 return _("No CVS file");
 493         case StatusError:
 494                 return _("Cannot retrieve CVS status");
 495         }
 496         return 0;
 497 }
 498
 499
 500 int CVS::doVCCommandWithOutput(string const & cmd, FileName const & path,
 501         FileName const & output, bool reportError)
 502 {
 503         string redirection = output.empty() ? "" : " > " + quoteName(output.toFilesystemEncoding());
 504         return doVCCommand(cmd + redirection, path, reportError);
 505 }
 506
 507
 508 int CVS::doVCCommandCallWithOutput(std::string const & cmd,
 509         support::FileName const & path,
 510         support::FileName const & output)
 511 {
 512         string redirection = output.empty() ? "" : " > " + quoteName(output.toFilesystemEncoding());
 513         return doVCCommandCall(cmd + redirection, path);
 514 }
 515
 516
 517 CVS::CvsStatus CVS::getStatus()
 518 {
 519         FileName tmpf = FileName::tempName("lyxvcout");
 520         if (tmpf.empty()) {
 521                 LYXERR(Debug::LYXVC, "Could not generate logfile " << tmpf);
 522                 return StatusError;
 523         }
 524
 525         if (doVCCommandCallWithOutput("cvs status " + getTarget(File),
 526                 FileName(owner_->filePath()), tmpf)) {
 527                 tmpf.removeFile();
 528                 return StatusError;
 529         }
 530
 531         ifstream ifs(tmpf.toFilesystemEncoding().c_str());
 532         CvsStatus status = NoCvsFile;
 533
 534         while (ifs) {
 535                 string line;
 536                 getline(ifs, line);
 537                 LYXERR(Debug::LYXVC, line << "\n");
 538                 if (prefixIs(line, "File:")) {
 539                         if (contains(line, "Up-to-date"))
 540                                 status = UpToDate;
 541                         else if (contains(line, "Locally Modified"))
 542                                 status = LocallyModified;
 543                         else if (contains(line, "Locally Added"))
 544                                 status = LocallyAdded;
 545                         else if (contains(line, "Needs Merge"))
 546                                 status = NeedsMerge;
 547                         else if (contains(line, "Needs Checkout"))
 548                                 status = NeedsCheckout;
 549                 }
 550         }
 551         tmpf.removeFile();
 552         return status;
 553 }
 554
 555 void CVS::getRevisionInfo()
 556 {
 557         if (have_rev_info_)
 558                 return;
 559         have_rev_info_ = true;
 560         FileName tmpf = FileName::tempName("lyxvcout");
 561         if (tmpf.empty()) {
 562                 LYXERR(Debug::LYXVC, "Could not generate logfile " << tmpf);
 563                 return;
 564         }
 565
 566         int rc = doVCCommandCallWithOutput("cvs log -r" + version_
 567                 + " " + getTarget(File),
 568                 FileName(owner_->filePath()), tmpf);
 569         if (rc) {
 570                 tmpf.removeFile();
 571                 LYXERR(Debug::LYXVC, "cvs log failed with exit code " << rc);
 572                 return;
 573         }
 574
 575         ifstream ifs(tmpf.toFilesystemEncoding().c_str());
 576         static regex const reg("date: (.*) (.*) (.*);  author: (.*);  state: (.*);(.*)");
 577
 578         while (ifs) {
 579                 string line;
 580                 getline(ifs, line);
 581                 LYXERR(Debug::LYXVC, line << "\n");
 582                 if (prefixIs(line, "date:")) {
 583                         smatch sm;
 584                         regex_match(line, sm, reg);
 585                         //sm[0]; // whole matched string
 586                         rev_date_cache_ = sm[1];
 587                         rev_time_cache_ = sm[2];
 588                         //sm[3]; // GMT offset
 589                         rev_author_cache_ = sm[4];
 590                         break;
 591                 }
 592         }
 593         tmpf.removeFile();
 594         if (rev_author_cache_.empty())
 595                 LYXERR(Debug::LYXVC,
 596                    "Could not retrieve revision info for " << version_ <<
 597                    " of " << getTarget(File));
 598 }
 599
 600
 601 void CVS::registrer(string const & msg)
 602 {
 603         doVCCommand("cvs -q add -m \"" + msg + "\" "
 604                 + getTarget(File),
 605                 FileName(owner_->filePath()));
 606 }
 607
 608
 609 void CVS::getDiff(OperationMode opmode, FileName const & tmpf)
 610 {
 611         doVCCommandWithOutput("cvs diff " + getTarget(opmode),
 612                 FileName(owner_->filePath()), tmpf, false);
 613 }
 614
 615
 616 int CVS::edit()
 617 {
 618         vcstatus = LOCKED;
 619         return doVCCommand("cvs -q edit " + getTarget(File),
 620                 FileName(owner_->filePath()));
 621 }
 622
 623
 624 int CVS::unedit()
 625 {
 626         vcstatus = UNLOCKED;
 627         return doVCCommand("cvs -q unedit " + getTarget(File),
 628                 FileName(owner_->filePath()));
 629 }
 630
 631
 632 int CVS::update(OperationMode opmode, FileName const & tmpf)
 633 {
 634         return doVCCommandWithOutput("cvs -q update "
 635                 + getTarget(opmode),
 636                 FileName(owner_->filePath()), tmpf, false);
 637 }
 638
 639
 640 string CVS::scanLogFile(FileName const & f, string & status)
 641 {
 642         ifstream ifs(f.toFilesystemEncoding().c_str());
 643
 644         while (ifs) {
 645                 string line;
 646                 getline(ifs, line);
 647                 LYXERR(Debug::LYXVC, line << "\n");
 648                 if (!line.empty())
 649                         status += line + "; ";
 650                 if (prefixIs(line, "C ")) {
 651                         ifs.close();
 652                         return line;
 653                 }
 654         }
 655         ifs.close();
 656         return string();
 657 }
 658
 659
 660 string CVS::checkIn(string const & msg)
 661 {
 662         CvsStatus status = getStatus();
 663         switch (status) {
 664         case UpToDate:
 665                 if (vcstatus != NOLOCKING)
 666                         unedit();
 667                 return "CVS: Proceeded";
 668         case LocallyModified:
 669         case LocallyAdded: {
 670                 int rc = doVCCommand("cvs -q commit -m \"" + msg + "\" "
 671                         + getTarget(File),
 672                     FileName(owner_->filePath()));
 673                 return rc ? string() : "CVS: Proceeded";
 674         }
 675         case NeedsMerge:
 676         case NeedsCheckout:
 677                 frontend::Alert::error(_("Revision control error."),
 678                         _("The repository version is newer then the current check out.\n"
 679                           "You have to update from repository first or revert your changes.")) ;
 680                 break;
 681         default:
 682                 frontend::Alert::error(_("Revision control error."),
 683                         bformat(_("Bad status when checking in changes.\n"
 684                                           "\n'%1$s'\n\n"),
 685                                 toString(status)));
 686                 break;
 687         }
 688         return string();
 689 }
 690
 691
 692 bool CVS::isLocked() const
 693 {
 694         FileName fn(owner_->absFileName());
 695         fn.refresh();
 696         return !fn.isReadOnly();
 697 }
 698
 699
 700 bool CVS::checkInEnabled()
 701 {
 702         if (vcstatus != NOLOCKING)
 703                 return isLocked();
 704         else
 705                 return true;
 706 }
 707
 708
 709 bool CVS::isCheckInWithConfirmation()
 710 {
 711         CvsStatus status = getStatus();
 712         return status == LocallyModified || status == LocallyAdded;
 713 }
 714
 715
 716 string CVS::checkOut()
 717 {
 718         if (vcstatus != NOLOCKING && edit())
 719                 return string();
 720         FileName tmpf = FileName::tempName("lyxvcout");
 721         if (tmpf.empty()) {
 722                 LYXERR(Debug::LYXVC, "Could not generate logfile " << tmpf);
 723                 return string();
 724         }
 725
 726         int rc = update(File, tmpf);
 727         string log;
 728         string const res = scanLogFile(tmpf, log);
 729         if (!res.empty()) {
 730                 frontend::Alert::error(_("Revision control error."),
 731                         bformat(_("Error when updating from repository.\n"
 732                                 "You have to manually resolve the conflicts NOW!\n'%1$s'.\n\n"
 733                                 "After pressing OK, LyX will try to reopen the resolved document."),
 734                                 from_local8bit(res)));
 735                 rc = 0;
 736         }
 737
 738         tmpf.erase();
 739         return rc ? string() : log.empty() ? "CVS: Proceeded" : "CVS: " + log;
 740 }
 741
 742
 743 bool CVS::checkOutEnabled()
 744 {
 745         if (vcstatus != NOLOCKING)
 746                 return !isLocked();
 747         else
 748                 return true;
 749 }
 750
 751
 752 string CVS::repoUpdate()
 753 {
 754         FileName tmpf = FileName::tempName("lyxvcout");
 755         if (tmpf.empty()) {
 756                 LYXERR(Debug::LYXVC, "Could not generate logfile " << tmpf);
 757                 return string();
 758         }
 759
 760         getDiff(Directory, tmpf);
 761         docstring res = tmpf.fileContents("UTF-8");
 762         if (!res.empty()) {
 763                 LYXERR(Debug::LYXVC, "Diff detected:\n" << res);
 764                 docstring const file = from_utf8(owner_->filePath());
 765                 docstring text = bformat(_("There were detected changes "
 766                                 "in the working directory:\n%1$s\n\n"
 767                                 "In case of file conflict you have to resolve them "
 768                                 "manually or revert to repository version later."), file);
 769                 int ret = frontend::Alert::prompt(_("Changes detected"),
 770                                 text, 0, 1, _("&Continue"), _("&Abort"), _("View &Log ..."));
 771                 if (ret == 2 ) {
 772                         dispatch(FuncRequest(LFUN_DIALOG_SHOW, "file " + tmpf.absFileName()));
 773                         ret = frontend::Alert::prompt(_("Changes detected"),
 774                                 text, 0, 1, _("&Continue"), _("&Abort"));
 775                         hideDialogs("file", 0);
 776                 }
 777                 if (ret == 1 ) {
 778                         tmpf.removeFile();
 779                         return string();
 780                 }
 781         }
 782
 783         int rc = update(Directory, tmpf);
 784         res += "Update log:\n" + tmpf.fileContents("UTF-8");
 785         LYXERR(Debug::LYXVC, res);
 786
 787         string log;
 788         string sres = scanLogFile(tmpf, log);
 789         if (!sres.empty()) {
 790                 docstring const file = owner_->fileName().displayName(20);
 791                 frontend::Alert::error(_("Revision control error."),
 792                         bformat(_("Error when updating document %1$s from repository.\n"
 793                                           "You have to manually resolve the conflicts NOW!\n'%2$s'.\n\n"
 794                                           "After pressing OK, LyX will try to reopen the resolved document."),
 795                                 file, from_local8bit(sres)));
 796                 rc = 0;
 797         }
 798
 799         tmpf.removeFile();
 800
 801         return rc ? string() : log.empty() ? "CVS: Proceeded" : "CVS: " + log;
 802 }
 803
 804
 805 bool CVS::repoUpdateEnabled()
 806 {
 807         return true;
 808 }
 809
 810
 811 string CVS::lockingToggle()
 812 {
 813         lyxerr << "Sorry, not implemented." << endl;
 814         return string();
 815 }
 816
 817
 818 bool CVS::lockingToggleEnabled()
 819 {
 820         return false;
 821 }
 822
 823
 824 bool CVS::isRevertWithConfirmation()
 825 {
 826         CvsStatus status = getStatus();
 827         return !owner_->isClean() || status == LocallyModified || status == NeedsMerge;
 828 }
 829
 830
 831 void CVS::revert()
 832 {
 833         // Reverts to the version in CVS repository and
 834         // gets the updated version from the repository.
 835         CvsStatus status = getStatus();
 836         switch (status) {
 837         case UpToDate:
 838                 if (vcstatus != NOLOCKING)
 839                         unedit();
 840                 break;
 841         case NeedsMerge:
 842         case NeedsCheckout:
 843         case LocallyModified: {
 844                 FileName f(owner_->absFileName());
 845                 f.removeFile();
 846                 update(File, FileName());
 847                 owner_->markClean();
 848                 break;
 849         }
 850         case LocallyAdded: {
 851                 docstring const file = owner_->fileName().displayName(20);
 852                 frontend::Alert::error(_("Revision control error."),
 853                         bformat(_("The document %1$s is not in repository.\n"
 854                                   "You have to check in the first revision before you can revert."),
 855                                 file)) ;
 856                 break;
 857         }
 858         default: {
 859                 docstring const file = owner_->fileName().displayName(20);
 860                 frontend::Alert::error(_("Revision control error."),
 861                         bformat(_("Cannot revert document %1$s to repository version.\n"
 862                                   "The status '%2$s' is unexpected."),
 863                                 file, toString(status)));
 864                 break;
 865                 }
 866         }
 867 }
 868
 869
 870 void CVS::undoLast()
 871 {
 872         // merge the current with the previous version
 873         // in a reverse patch kind of way, so that the
 874         // result is to revert the last changes.
 875         lyxerr << "Sorry, not implemented." << endl;
 876 }
 877
 878
 879 bool CVS::undoLastEnabled()
 880 {
 881         return false;
 882 }
 883
 884
 885 void CVS::getLog(FileName const & tmpf)
 886 {
 887         doVCCommandWithOutput("cvs log " + getTarget(File),
 888                 FileName(owner_->filePath()),
 889                 tmpf);
 890 }
 891
 892
 893 bool CVS::toggleReadOnlyEnabled()
 894 {
 895         return false;
 896 }
 897
 898
 899 string CVS::revisionInfo(LyXVC::RevisionInfo const info)
 900 {
 901         if (!version_.empty()) {
 902                 getRevisionInfo();
 903                 switch (info) {
 904                 case LyXVC::File:
 905                         return version_;
 906                 case LyXVC::Author:
 907                         return rev_author_cache_;
 908                 case LyXVC::Date:
 909                         return rev_date_cache_;
 910                 case LyXVC::Time:
 911                         return rev_time_cache_;
 912                 default: ;
 913                 }
 914         }
 915         return string();
 916 }
 917
 918
 919 bool CVS::prepareFileRevision(string const &, string &)
 920 {
 921         return false;
 922 }
 923
 924
 925 bool CVS::prepareFileRevisionEnabled()
 926 {
 927         return false;
 928 }
 929
 930
 931 /////////////////////////////////////////////////////////////////////
 932 //
 933 // SVN
 934 //
 935 /////////////////////////////////////////////////////////////////////
 936
 937 SVN::SVN(FileName const & m, FileName const & f)
 938 {
 939         owner_ = 0;
 940         master_ = m;
 941         file_ = f;
 942         locked_mode_ = 0;
 943         scanMaster();
 944 }
 945
 946
 947 FileName const SVN::findFile(FileName const & file)
 948 {
 949         // First we look for the .svn/entries in the same dir
 950         // where we have file.
 951         FileName const entries(onlyPath(file.absFileName()) + "/.svn/entries");
 952         string const tmpf = onlyFileName(file.absFileName());
 953         LYXERR(Debug::LYXVC, "LyXVC: Checking if file is under svn in `" << entries
 954                              << "' for `" << tmpf << '\'');
 955         if (entries.isReadableFile()) {
 956                 // Ok we are at least in a SVN dir. Parse the .svn/entries
 957                 // and see if we can find this file. We do a fast and
 958                 // dirty parse here.
 959                 ifstream ifs(entries.toFilesystemEncoding().c_str());
 960                 string line, oldline;
 961                 while (getline(ifs, line)) {
 962                         if (line == "dir" || line == "file")
 963                                 LYXERR(Debug::LYXVC, "\tEntries: " << oldline);
 964                         if (oldline == tmpf && line == "file")
 965                                 return entries;
 966                         oldline = line;
 967                 }
 968         }
 969         return FileName();
 970 }
 971
 972
 973 void SVN::scanMaster()
 974 {
 975         // vcstatus code is somewhat superflous, until we want
 976         // to implement read-only toggle for svn.
 977         vcstatus = NOLOCKING;
 978         if (checkLockMode()) {
 979                 if (isLocked()) {
 980                         vcstatus = LOCKED;
 981                 } else {
 982                         vcstatus = UNLOCKED;
 983                 }
 984         }
 985 }
 986
 987
 988 bool SVN::checkLockMode()
 989 {
 990         FileName tmpf = FileName::tempName("lyxvcout");
 991         if (tmpf.empty()){
 992                 LYXERR(Debug::LYXVC, "Could not generate logfile " << tmpf);
 993                 return N_("Error: Could not generate logfile.");
 994         }
 995
 996         LYXERR(Debug::LYXVC, "Detecting locking mode...");
 997         if (doVCCommandCall("svn proplist " + quoteName(file_.onlyFileName())
 998                     + " > " + quoteName(tmpf.toFilesystemEncoding()),
 999                     file_.onlyPath()))
1000                 return false;
1001
1002         ifstream ifs(tmpf.toFilesystemEncoding().c_str());
1003         string line;
1004         bool ret = false;
1005
1006         while (ifs) {
1007                 getline(ifs, line);
1008                 LYXERR(Debug::LYXVC, line);
1009                 if (contains(line, "svn:needs-lock"))
1010                         ret = true;
1011         }
1012         LYXERR(Debug::LYXVC, "Locking enabled: " << ret);
1013         ifs.close();
1014         locked_mode_ = ret;
1015         return ret;
1016
1017 }
1018
1019
1020 bool SVN::isLocked() const
1021 {
1022         file_.refresh();
1023         return !file_.isReadOnly();
1024 }
1025
1026
1027 void SVN::registrer(string const & /*msg*/)
1028 {
1029         doVCCommand("svn add -q " + quoteName(onlyFileName(owner_->absFileName())),
1030                     FileName(owner_->filePath()));
1031 }
1032
1033
1034 string SVN::checkIn(string const & msg)
1035 {
1036         FileName tmpf = FileName::tempName("lyxvcout");
1037         if (tmpf.empty()){
1038                 LYXERR(Debug::LYXVC, "Could not generate logfile " << tmpf);
1039                 return N_("Error: Could not generate logfile.");
1040         }
1041
1042         doVCCommand("svn commit -m \"" + msg + "\" "
1043                     + quoteName(onlyFileName(owner_->absFileName()))
1044                     + " > " + quoteName(tmpf.toFilesystemEncoding()),
1045                     FileName(owner_->filePath()));
1046
1047         string log;
1048         string res = scanLogFile(tmpf, log);
1049         if (!res.empty())
1050                 frontend::Alert::error(_("Revision control error."),
1051                                 _("Error when committing to repository.\n"
1052                                 "You have to manually resolve the problem.\n"
1053                                 "LyX will reopen the document after you press OK."));
1054         else
1055                 fileLock(false, tmpf, log);
1056
1057         tmpf.erase();
1058         return log.empty() ? string() : "SVN: " + log;
1059 }
1060
1061
1062 bool SVN::checkInEnabled()
1063 {
1064         if (locked_mode_)
1065                 return isLocked();
1066         else
1067                 return true;
1068 }
1069
1070
1071 bool SVN::isCheckInWithConfirmation()
1072 {
1073         //FIXME diff
1074         return true;
1075 }
1076
1077
1078 // FIXME Correctly return code should be checked instead of this.
1079 // This would need another solution than just plain startscript.
1080 // Hint from Andre': QProcess::readAllStandardError()...
1081 string SVN::scanLogFile(FileName const & f, string & status)
1082 {
1083         ifstream ifs(f.toFilesystemEncoding().c_str());
1084         string line;
1085
1086         while (ifs) {
1087                 getline(ifs, line);
1088                 LYXERR(Debug::LYXVC, line << "\n");
1089                 if (!line.empty())
1090                         status += line + "; ";
1091                 if (prefixIs(line, "C ") || prefixIs(line, "CU ")
1092                                          || contains(line, "Commit failed")) {
1093                         ifs.close();
1094                         return line;
1095                 }
1096                 if (contains(line, "svn:needs-lock")) {
1097                         ifs.close();
1098                         return line;
1099                 }
1100         }
1101         ifs.close();
1102         return string();
1103 }
1104
1105
1106 void SVN::fileLock(bool lock, FileName const & tmpf, string &status)
1107 {
1108         if (!locked_mode_ || (isLocked() == lock))
1109                 return;
1110
1111         string const arg = lock ? "lock " : "unlock ";
1112         doVCCommand("svn "+ arg + quoteName(onlyFileName(owner_->absFileName()))
1113                     + " > " + quoteName(tmpf.toFilesystemEncoding()),
1114                     FileName(owner_->filePath()));
1115
1116         // Lock error messages go unfortunately on stderr and are unreachible this way.
1117         ifstream ifs(tmpf.toFilesystemEncoding().c_str());
1118         string line;
1119         while (ifs) {
1120                 getline(ifs, line);
1121                 if (!line.empty()) status += line + "; ";
1122         }
1123         ifs.close();
1124
1125         if (!isLocked() && lock)
1126                 frontend::Alert::error(_("Revision control error."),
1127                         _("Error while acquiring write lock.\n"
1128                         "Another user is most probably editing\n"
1129                         "the current document now!\n"
1130                         "Also check the access to the repository."));
1131         if (isLocked() && !lock)
1132                 frontend::Alert::error(_("Revision control error."),
1133                         _("Error while releasing write lock.\n"
1134                         "Check the access to the repository."));
1135 }
1136
1137
1138 string SVN::checkOut()
1139 {
1140         FileName tmpf = FileName::tempName("lyxvcout");
1141         if (tmpf.empty()) {
1142                 LYXERR(Debug::LYXVC, "Could not generate logfile " << tmpf);
1143                 return N_("Error: Could not generate logfile.");
1144         }
1145
1146         doVCCommand("svn update --non-interactive " + quoteName(onlyFileName(owner_->absFileName()))
1147                     + " > " + quoteName(tmpf.toFilesystemEncoding()),
1148                     FileName(owner_->filePath()));
1149
1150         string log;
1151         string const res = scanLogFile(tmpf, log);
1152         if (!res.empty())
1153                 frontend::Alert::error(_("Revision control error."),
1154                         bformat(_("Error when updating from repository.\n"
1155                                 "You have to manually resolve the conflicts NOW!\n'%1$s'.\n\n"
1156                                 "After pressing OK, LyX will try to reopen the resolved document."),
1157                         from_local8bit(res)));
1158
1159         fileLock(true, tmpf, log);
1160
1161         tmpf.erase();
1162         return log.empty() ? string() : "SVN: " + log;
1163 }
1164
1165
1166 bool SVN::checkOutEnabled()
1167 {
1168         if (locked_mode_)
1169                 return !isLocked();
1170         else
1171                 return true;
1172 }
1173
1174
1175 string SVN::repoUpdate()
1176 {
1177         FileName tmpf = FileName::tempName("lyxvcout");
1178         if (tmpf.empty()) {
1179                 LYXERR(Debug::LYXVC, "Could not generate logfile " << tmpf);
1180                 return N_("Error: Could not generate logfile.");
1181         }
1182
1183         doVCCommand("svn diff " + quoteName(owner_->filePath())
1184                     + " > " + quoteName(tmpf.toFilesystemEncoding()),
1185                 FileName(owner_->filePath()));
1186         docstring res = tmpf.fileContents("UTF-8");
1187         if (!res.empty()) {
1188                 LYXERR(Debug::LYXVC, "Diff detected:\n" << res);
1189                 docstring const file = from_utf8(owner_->filePath());
1190                 docstring text = bformat(_("There were detected changes "
1191                                 "in the working directory:\n%1$s\n\n"
1192                                 "In case of file conflict version of the local directory files "
1193                                 "will be preferred."
1194                                 "\n\nContinue?"), file);
1195                 int ret = frontend::Alert::prompt(_("Changes detected"),
1196                                 text, 0, 1, _("&Yes"), _("&No"), _("View &Log ..."));
1197                 if (ret == 2 ) {
1198                         dispatch(FuncRequest(LFUN_DIALOG_SHOW, "file " + tmpf.absFileName()));
1199                         ret = frontend::Alert::prompt(_("Changes detected"),
1200                                 text, 0, 1, _("&Yes"), _("&No"));
1201                         hideDialogs("file", 0);
1202                 }
1203                 if (ret == 1 ) {
1204                         tmpf.erase();
1205                         return string();
1206                 }
1207         }
1208
1209         // Reverting looks too harsh, see bug #6255.
1210         // doVCCommand("svn revert -R " + quoteName(owner_->filePath())
1211         // + " > " + quoteName(tmpf.toFilesystemEncoding()),
1212         // FileName(owner_->filePath()));
1213         // res = "Revert log:\n" + tmpf.fileContents("UTF-8");
1214         doVCCommand("svn update --accept mine-full " + quoteName(owner_->filePath())
1215                 + " > " + quoteName(tmpf.toFilesystemEncoding()),
1216                 FileName(owner_->filePath()));
1217         res += "Update log:\n" + tmpf.fileContents("UTF-8");
1218
1219         LYXERR(Debug::LYXVC, res);
1220         tmpf.erase();
1221         return to_utf8(res);
1222 }
1223
1224
1225 bool SVN::repoUpdateEnabled()
1226 {
1227         return true;
1228 }
1229
1230
1231 string SVN::lockingToggle()
1232 {
1233         FileName tmpf = FileName::tempName("lyxvcout");
1234         if (tmpf.empty()) {
1235                 LYXERR(Debug::LYXVC, "Could not generate logfile " << tmpf);
1236                 return N_("Error: Could not generate logfile.");
1237         }
1238
1239         int ret = doVCCommand("svn proplist " + quoteName(onlyFileName(owner_->absFileName()))
1240                     + " > " + quoteName(tmpf.toFilesystemEncoding()),
1241                     FileName(owner_->filePath()));
1242         if (ret)
1243                 return string();
1244
1245         string log;
1246         string res = scanLogFile(tmpf, log);
1247         bool locking = contains(res, "svn:needs-lock");
1248         if (!locking)
1249                 ret = doVCCommand("svn propset svn:needs-lock ON "
1250                     + quoteName(onlyFileName(owner_->absFileName()))
1251                     + " > " + quoteName(tmpf.toFilesystemEncoding()),
1252                     FileName(owner_->filePath()));
1253         else
1254                 ret = doVCCommand("svn propdel svn:needs-lock "
1255                     + quoteName(onlyFileName(owner_->absFileName()))
1256                     + " > " + quoteName(tmpf.toFilesystemEncoding()),
1257                     FileName(owner_->filePath()));
1258         if (ret)
1259                 return string();
1260
1261         tmpf.erase();
1262         frontend::Alert::warning(_("VCN File Locking"),
1263                 (locking ? _("Locking property unset.") : _("Locking property set.")) + "\n"
1264                 + _("Do not forget to commit the locking property into the repository."),
1265                 true);
1266
1267         return string("SVN: ") +  N_("Locking property set.");
1268 }
1269
1270
1271 bool SVN::lockingToggleEnabled()
1272 {
1273         return true;
1274 }
1275
1276
1277 void SVN::revert()
1278 {
1279         // Reverts to the version in SVN repository and
1280         // gets the updated version from the repository.
1281         string const fil = quoteName(onlyFileName(owner_->absFileName()));
1282
1283         doVCCommand("svn revert -q " + fil,
1284                     FileName(owner_->filePath()));
1285         owner_->markClean();
1286 }
1287
1288
1289 bool SVN::isRevertWithConfirmation()
1290 {
1291         //FIXME owner && diff
1292         return true;
1293 }
1294
1295
1296 void SVN::undoLast()
1297 {
1298         // merge the current with the previous version
1299         // in a reverse patch kind of way, so that the
1300         // result is to revert the last changes.
1301         lyxerr << "Sorry, not implemented." << endl;
1302 }
1303
1304
1305 bool SVN::undoLastEnabled()
1306 {
1307         return false;
1308 }
1309
1310
1311 string SVN::revisionInfo(LyXVC::RevisionInfo const info)
1312 {
1313         if (info == LyXVC::Tree) {
1314                         if (rev_tree_cache_.empty())
1315                                 if (!getTreeRevisionInfo())
1316                                         rev_tree_cache_ = "?";
1317                         if (rev_tree_cache_ == "?")
1318                                 return string();
1319
1320                         return rev_tree_cache_;
1321         }
1322
1323         // fill the rest of the attributes for a single file
1324         if (rev_file_cache_.empty())
1325                 if (!getFileRevisionInfo())
1326                         rev_file_cache_ = "?";
1327
1328         switch (info) {
1329                 case LyXVC::File:
1330                         if (rev_file_cache_ == "?")
1331                                 return string();
1332                         return rev_file_cache_;
1333                 case LyXVC::Author:
1334                         return rev_author_cache_;
1335                 case LyXVC::Date:
1336                         return rev_date_cache_;
1337                 case LyXVC::Time:
1338                         return rev_time_cache_;
1339                 default: ;
1340
1341         }
1342
1343         return string();
1344 }
1345
1346
1347 bool SVN::getFileRevisionInfo()
1348 {
1349         FileName tmpf = FileName::tempName("lyxvcout");
1350         if (tmpf.empty()) {
1351                 LYXERR(Debug::LYXVC, "Could not generate logfile " << tmpf);
1352                 return N_("Error: Could not generate logfile.");
1353         }
1354
1355         doVCCommand("svn info --xml " + quoteName(onlyFileName(owner_->absFileName()))
1356                     + " > " + quoteName(tmpf.toFilesystemEncoding()),
1357                     FileName(owner_->filePath()));
1358
1359         if (tmpf.empty())
1360                 return false;
1361
1362         ifstream ifs(tmpf.toFilesystemEncoding().c_str());
1363         string line;
1364         // commit log part
1365         bool c = false;
1366         string rev;
1367
1368         while (ifs) {
1369                 getline(ifs, line);
1370                 LYXERR(Debug::LYXVC, line);
1371                 if (prefixIs(line, "<commit"))
1372                         c = true;
1373                 if (c && prefixIs(line, "   revision=\"") && suffixIs(line, "\">")) {
1374                         string l1 = subst(line, "revision=\"", "");
1375                         string l2 = trim(subst(l1, "\">", ""));
1376                         if (isStrInt(l2))
1377                                 rev_file_cache_ = rev = l2;
1378                 }
1379                 if (c && prefixIs(line, "<author>") && suffixIs(line, "</author>")) {
1380                         string l1 = subst(line, "<author>", "");
1381                         string l2 = subst(l1, "</author>", "");
1382                         rev_author_cache_ = l2;
1383                 }
1384                 if (c && prefixIs(line, "<date>") && suffixIs(line, "</date>")) {
1385                         string l1 = subst(line, "<date>", "");
1386                         string l2 = subst(l1, "</date>", "");
1387                         l2 = split(l2, l1, 'T');
1388                         rev_date_cache_ = l1;
1389                         l2 = split(l2, l1, '.');
1390                         rev_time_cache_ = l1;
1391                 }
1392         }
1393
1394         ifs.close();
1395         tmpf.erase();
1396         return !rev.empty();
1397 }
1398
1399
1400 bool SVN::getTreeRevisionInfo()
1401 {
1402         FileName tmpf = FileName::tempName("lyxvcout");
1403         if (tmpf.empty()) {
1404                 LYXERR(Debug::LYXVC, "Could not generate logfile " << tmpf);
1405                 return N_("Error: Could not generate logfile.");
1406         }
1407
1408         doVCCommand("svnversion -n . > " + quoteName(tmpf.toFilesystemEncoding()),
1409                     FileName(owner_->filePath()));
1410
1411         if (tmpf.empty())
1412                 return false;
1413
1414         // only first line in case something bad happens.
1415         ifstream ifs(tmpf.toFilesystemEncoding().c_str());
1416         string line;
1417         getline(ifs, line);
1418         ifs.close();
1419         tmpf.erase();
1420
1421         rev_tree_cache_ = line;
1422         return !line.empty();
1423 }
1424
1425
1426 void SVN::getLog(FileName const & tmpf)
1427 {
1428         doVCCommand("svn log " + quoteName(onlyFileName(owner_->absFileName()))
1429                     + " > " + quoteName(tmpf.toFilesystemEncoding()),
1430                     FileName(owner_->filePath()));
1431 }
1432
1433
1434 bool SVN::prepareFileRevision(string const & revis, string & f)
1435 {
1436         if (!isStrInt(revis))
1437                 return false;
1438
1439         int rev = convert<int>(revis);
1440         if (rev <= 0)
1441                 if (!getFileRevisionInfo())
1442                         return false;
1443         if (rev == 0)
1444                 rev = convert<int>(rev_file_cache_);
1445         // go back for minus rev
1446         else if (rev < 0) {
1447                 rev = rev + convert<int>(rev_file_cache_);
1448                 if (rev < 1)
1449                         return false;
1450         }
1451
1452         string revname = convert<string>(rev);
1453         FileName tmpf = FileName::tempName("lyxvcrev_" + revname + "_");
1454         if (tmpf.empty()) {
1455                 LYXERR(Debug::LYXVC, "Could not generate logfile " << tmpf);
1456                 return N_("Error: Could not generate logfile.");
1457         }
1458
1459         doVCCommand("svn cat -r " + revname + " "
1460                       + quoteName(onlyFileName(owner_->absFileName()))
1461                       + " > " + quoteName(tmpf.toFilesystemEncoding()),
1462                 FileName(owner_->filePath()));
1463         if (tmpf.isFileEmpty())
1464                 return false;
1465
1466         f = tmpf.absFileName();
1467         return true;
1468 }
1469
1470
1471 bool SVN::prepareFileRevisionEnabled()
1472 {
1473         return true;
1474 }
1475
1476
1477
1478 bool SVN::toggleReadOnlyEnabled()
1479 {
1480         return false;
1481 }
1482
1483
1484 } // namespace lyx