apt-pkg/deb/debindexfile.cc

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 // $Id: debindexfile.cc,v 1.5.2.3 2004/01/04 19:11:00 mdz Exp $
   4 /* ######################################################################
   5
   6    Debian Specific sources.list types and the three sorts of Debian
   7    index files.
   8
   9    ##################################################################### */
  10                                                                         /*}}}*/
  11 // Include Files                                                        /*{{{*/
  12 #include <config.h>
  13
  14 #include <apt-pkg/debindexfile.h>
  15 #include <apt-pkg/debsrcrecords.h>
  16 #include <apt-pkg/deblistparser.h>
  17 #include <apt-pkg/debrecords.h>
  18 #include <apt-pkg/configuration.h>
  19 #include <apt-pkg/progress.h>
  20 #include <apt-pkg/error.h>
  21 #include <apt-pkg/strutl.h>
  22 #include <apt-pkg/acquire-item.h>
  23 #include <apt-pkg/debmetaindex.h>
  24 #include <apt-pkg/gpgv.h>
  25 #include <apt-pkg/fileutl.h>
  26 #include <apt-pkg/indexfile.h>
  27 #include <apt-pkg/mmap.h>
  28 #include <apt-pkg/pkgcache.h>
  29 #include <apt-pkg/cacheiterators.h>
  30 #include <apt-pkg/pkgcachegen.h>
  31 #include <apt-pkg/pkgrecords.h>
  32 #include <apt-pkg/srcrecords.h>
  33
  34 #include <stdio.h>
  35 #include <iostream>
  36 #include <string>
  37 #include <sys/stat.h>
  38                                                                         /*}}}*/
  39
  40 using std::string;
  41
  42 // SourcesIndex::debSourcesIndex - Constructor                          /*{{{*/
  43 // ---------------------------------------------------------------------
  44 /* */
  45 debSourcesIndex::debSourcesIndex(string URI,string Dist,string Section,bool Trusted) :
  46      pkgIndexFile(Trusted), URI(URI), Dist(Dist), Section(Section)
  47 {
  48 }
  49                                                                         /*}}}*/
  50 // SourcesIndex::SourceInfo - Short 1 liner describing a source         /*{{{*/
  51 // ---------------------------------------------------------------------
  52 /* The result looks like:
  53      http://foo/debian/ stable/main src 1.1.1 (dsc) */
  54 string debSourcesIndex::SourceInfo(pkgSrcRecords::Parser const &Record,
  55                                    pkgSrcRecords::File const &File) const
  56 {
  57    string Res;
  58    Res = ::URI::NoUserPassword(URI) + ' ';
  59    if (Dist[Dist.size() - 1] == '/')
  60    {
  61       if (Dist != "/")
  62          Res += Dist;
  63    }
  64    else
  65       Res += Dist + '/' + Section;
  66
  67    Res += " ";
  68    Res += Record.Package();
  69    Res += " ";
  70    Res += Record.Version();
  71    if (File.Type.empty() == false)
  72       Res += " (" + File.Type + ")";
  73    return Res;
  74 }
  75                                                                         /*}}}*/
  76 // SourcesIndex::CreateSrcParser - Get a parser for the source files    /*{{{*/
  77 // ---------------------------------------------------------------------
  78 /* */
  79 pkgSrcRecords::Parser *debSourcesIndex::CreateSrcParser() const
  80 {
  81    string SourcesURI = _config->FindDir("Dir::State::lists") +
  82       URItoFileName(IndexURI("Sources"));
  83    string SourcesURIgzip = SourcesURI + ".gz";
  84
  85    if (!FileExists(SourcesURI) && !FileExists(SourcesURIgzip))
  86       return NULL;
  87    else if (!FileExists(SourcesURI) && FileExists(SourcesURIgzip))
  88       SourcesURI = SourcesURIgzip;
  89
  90    return new debSrcRecordParser(SourcesURI,this);
  91 }
  92                                                                         /*}}}*/
  93 // SourcesIndex::Describe - Give a descriptive path to the index        /*{{{*/
  94 // ---------------------------------------------------------------------
  95 /* */
  96 string debSourcesIndex::Describe(bool Short) const
  97 {
  98    char S[300];
  99    if (Short == true)
 100       snprintf(S,sizeof(S),"%s",Info("Sources").c_str());
 101    else
 102       snprintf(S,sizeof(S),"%s (%s)",Info("Sources").c_str(),
 103                IndexFile("Sources").c_str());
 104
 105    return S;
 106 }
 107                                                                         /*}}}*/
 108 // SourcesIndex::Info - One liner describing the index URI              /*{{{*/
 109 // ---------------------------------------------------------------------
 110 /* */
 111 string debSourcesIndex::Info(const char *Type) const
 112 {
 113    string Info = ::URI::NoUserPassword(URI) + ' ';
 114    if (Dist[Dist.size() - 1] == '/')
 115    {
 116       if (Dist != "/")
 117          Info += Dist;
 118    }
 119    else
 120       Info += Dist + '/' + Section;
 121    Info += " ";
 122    Info += Type;
 123    return Info;
 124 }
 125                                                                         /*}}}*/
 126 // SourcesIndex::Index* - Return the URI to the index files             /*{{{*/
 127 // ---------------------------------------------------------------------
 128 /* */
 129 inline string debSourcesIndex::IndexFile(const char *Type) const
 130 {
 131    string s = URItoFileName(IndexURI(Type));
 132    string sgzip = s + ".gz";
 133    if (!FileExists(s) && FileExists(sgzip))
 134        return sgzip;
 135    else
 136        return s;
 137 }
 138
 139 string debSourcesIndex::IndexURI(const char *Type) const
 140 {
 141    string Res;
 142    if (Dist[Dist.size() - 1] == '/')
 143    {
 144       if (Dist != "/")
 145          Res = URI + Dist;
 146       else
 147          Res = URI;
 148    }
 149    else
 150       Res = URI + "dists/" + Dist + '/' + Section +
 151       "/source/";
 152
 153    Res += Type;
 154    return Res;
 155 }
 156                                                                         /*}}}*/
 157 // SourcesIndex::Exists - Check if the index is available               /*{{{*/
 158 // ---------------------------------------------------------------------
 159 /* */
 160 bool debSourcesIndex::Exists() const
 161 {
 162    return FileExists(IndexFile("Sources"));
 163 }
 164                                                                         /*}}}*/
 165 // SourcesIndex::Size - Return the size of the index                    /*{{{*/
 166 // ---------------------------------------------------------------------
 167 /* */
 168 unsigned long debSourcesIndex::Size() const
 169 {
 170    unsigned long size = 0;
 171
 172    /* we need to ignore errors here; if the lists are absent, just return 0 */
 173    _error->PushToStack();
 174
 175    FileFd f(IndexFile("Sources"), FileFd::ReadOnly, FileFd::Extension);
 176    if (!f.Failed())
 177       size = f.Size();
 178
 179    if (_error->PendingError() == true)
 180        size = 0;
 181    _error->RevertToStack();
 182
 183    return size;
 184 }
 185                                                                         /*}}}*/
 186
 187 // PackagesIndex::debPackagesIndex - Contructor                         /*{{{*/
 188 // ---------------------------------------------------------------------
 189 /* */
 190 debPackagesIndex::debPackagesIndex(string const &URI, string const &Dist, string const &Section,
 191                                         bool const &Trusted, string const &Arch) :
 192                   pkgIndexFile(Trusted), URI(URI), Dist(Dist), Section(Section), Architecture(Arch)
 193 {
 194         if (Architecture == "native")
 195                 Architecture = _config->Find("APT::Architecture");
 196 }
 197                                                                         /*}}}*/
 198 // PackagesIndex::ArchiveInfo - Short version of the archive url        /*{{{*/
 199 // ---------------------------------------------------------------------
 200 /* This is a shorter version that is designed to be < 60 chars or so */
 201 string debPackagesIndex::ArchiveInfo(pkgCache::VerIterator Ver) const
 202 {
 203    string Res = ::URI::NoUserPassword(URI) + ' ';
 204    if (Dist[Dist.size() - 1] == '/')
 205    {
 206       if (Dist != "/")
 207          Res += Dist;
 208    }
 209    else
 210       Res += Dist + '/' + Section;
 211
 212    Res += " ";
 213    Res += Ver.ParentPkg().Name();
 214    Res += " ";
 215    if (Dist[Dist.size() - 1] != '/')
 216       Res.append(Ver.Arch()).append(" ");
 217    Res += Ver.VerStr();
 218    return Res;
 219 }
 220                                                                         /*}}}*/
 221 // PackagesIndex::Describe - Give a descriptive path to the index       /*{{{*/
 222 // ---------------------------------------------------------------------
 223 /* This should help the user find the index in the sources.list and
 224    in the filesystem for problem solving */
 225 string debPackagesIndex::Describe(bool Short) const
 226 {
 227    char S[300];
 228    if (Short == true)
 229       snprintf(S,sizeof(S),"%s",Info("Packages").c_str());
 230    else
 231       snprintf(S,sizeof(S),"%s (%s)",Info("Packages").c_str(),
 232                IndexFile("Packages").c_str());
 233    return S;
 234 }
 235                                                                         /*}}}*/
 236 // PackagesIndex::Info - One liner describing the index URI             /*{{{*/
 237 // ---------------------------------------------------------------------
 238 /* */
 239 string debPackagesIndex::Info(const char *Type) const
 240 {
 241    string Info = ::URI::NoUserPassword(URI) + ' ';
 242    if (Dist[Dist.size() - 1] == '/')
 243    {
 244       if (Dist != "/")
 245          Info += Dist;
 246    }
 247    else
 248       Info += Dist + '/' + Section;
 249    Info += " ";
 250    if (Dist[Dist.size() - 1] != '/')
 251       Info += Architecture + " ";
 252    Info += Type;
 253    return Info;
 254 }
 255                                                                         /*}}}*/
 256 // PackagesIndex::Index* - Return the URI to the index files            /*{{{*/
 257 // ---------------------------------------------------------------------
 258 /* */
 259 inline string debPackagesIndex::IndexFile(const char *Type) const
 260 {
 261    string s =_config->FindDir("Dir::State::lists") + URItoFileName(IndexURI(Type));
 262    string sgzip = s + ".gz";
 263    if (!FileExists(s) && FileExists(sgzip))
 264        return sgzip;
 265    else
 266        return s;
 267 }
 268 string debPackagesIndex::IndexURI(const char *Type) const
 269 {
 270    string Res;
 271    if (Dist[Dist.size() - 1] == '/')
 272    {
 273       if (Dist != "/")
 274          Res = URI + Dist;
 275       else
 276          Res = URI;
 277    }
 278    else
 279       Res = URI + "dists/" + Dist + '/' + Section +
 280       "/binary-" + Architecture + '/';
 281
 282    Res += Type;
 283    return Res;
 284 }
 285                                                                         /*}}}*/
 286 // PackagesIndex::Exists - Check if the index is available              /*{{{*/
 287 // ---------------------------------------------------------------------
 288 /* */
 289 bool debPackagesIndex::Exists() const
 290 {
 291    return FileExists(IndexFile("Packages"));
 292 }
 293                                                                         /*}}}*/
 294 // PackagesIndex::Size - Return the size of the index                   /*{{{*/
 295 // ---------------------------------------------------------------------
 296 /* This is really only used for progress reporting. */
 297 unsigned long debPackagesIndex::Size() const
 298 {
 299    unsigned long size = 0;
 300
 301    /* we need to ignore errors here; if the lists are absent, just return 0 */
 302    _error->PushToStack();
 303
 304    FileFd f(IndexFile("Packages"), FileFd::ReadOnly, FileFd::Extension);
 305    if (!f.Failed())
 306       size = f.Size();
 307
 308    if (_error->PendingError() == true)
 309        size = 0;
 310    _error->RevertToStack();
 311
 312    return size;
 313 }
 314                                                                         /*}}}*/
 315 // PackagesIndex::Merge - Load the index file into a cache              /*{{{*/
 316 // ---------------------------------------------------------------------
 317 /* */
 318 bool debPackagesIndex::Merge(pkgCacheGenerator &Gen,OpProgress *Prog) const
 319 {
 320    string PackageFile = IndexFile("Packages");
 321    FileFd Pkg(PackageFile,FileFd::ReadOnly, FileFd::Extension);
 322    debListParser Parser(&Pkg, Architecture);
 323
 324    if (_error->PendingError() == true)
 325       return _error->Error("Problem opening %s",PackageFile.c_str());
 326    if (Prog != NULL)
 327       Prog->SubProgress(0,Info("Packages"));
 328    ::URI Tmp(URI);
 329    if (Gen.SelectFile(PackageFile,Tmp.Host,*this) == false)
 330       return _error->Error("Problem with SelectFile %s",PackageFile.c_str());
 331
 332    // Store the IMS information
 333    pkgCache::PkgFileIterator File = Gen.GetCurFile();
 334    pkgCacheGenerator::Dynamic<pkgCache::PkgFileIterator> DynFile(File);
 335    File->Size = Pkg.FileSize();
 336    File->mtime = Pkg.ModificationTime();
 337
 338    if (Gen.MergeList(Parser) == false)
 339       return _error->Error("Problem with MergeList %s",PackageFile.c_str());
 340
 341    // Check the release file
 342    string ReleaseFile = debReleaseIndex(URI,Dist).MetaIndexFile("InRelease");
 343    bool releaseExists = false;
 344    if (FileExists(ReleaseFile) == true)
 345       releaseExists = true;
 346    else
 347       ReleaseFile = debReleaseIndex(URI,Dist).MetaIndexFile("Release");
 348
 349    if (releaseExists == true || FileExists(ReleaseFile) == true)
 350    {
 351       FileFd Rel;
 352       // Beware: The 'Release' file might be clearsigned in case the
 353       // signature for an 'InRelease' file couldn't be checked
 354       if (OpenMaybeClearSignedFile(ReleaseFile, Rel) == false)
 355          return false;
 356
 357       if (_error->PendingError() == true)
 358          return false;
 359       Parser.LoadReleaseInfo(File,Rel,Section);
 360    }
 361
 362    return true;
 363 }
 364                                                                         /*}}}*/
 365 // PackagesIndex::FindInCache - Find this index                         /*{{{*/
 366 // ---------------------------------------------------------------------
 367 /* */
 368 pkgCache::PkgFileIterator debPackagesIndex::FindInCache(pkgCache &Cache) const
 369 {
 370    string FileName = IndexFile("Packages");
 371    pkgCache::PkgFileIterator File = Cache.FileBegin();
 372    for (; File.end() == false; ++File)
 373    {
 374        if (File.FileName() == NULL || FileName != File.FileName())
 375          continue;
 376
 377       struct stat St;
 378       if (stat(File.FileName(),&St) != 0)
 379       {
 380          if (_config->FindB("Debug::pkgCacheGen", false))
 381             std::clog << "PackagesIndex::FindInCache - stat failed on " << File.FileName() << std::endl;
 382          return pkgCache::PkgFileIterator(Cache);
 383       }
 384       if ((unsigned)St.st_size != File->Size || St.st_mtime != File->mtime)
 385       {
 386          if (_config->FindB("Debug::pkgCacheGen", false))
 387             std::clog << "PackagesIndex::FindInCache - size (" << St.st_size << " <> " << File->Size
 388                         << ") or mtime (" << St.st_mtime << " <> " << File->mtime
 389                         << ") doesn't match for " << File.FileName() << std::endl;
 390          return pkgCache::PkgFileIterator(Cache);
 391       }
 392       return File;
 393    }
 394
 395    return File;
 396 }
 397                                                                         /*}}}*/
 398
 399 // TranslationsIndex::debTranslationsIndex - Contructor                 /*{{{*/
 400 // ---------------------------------------------------------------------
 401 /* */
 402 debTranslationsIndex::debTranslationsIndex(string URI,string Dist,string Section,
 403                                                 char const * const Translation) :
 404                         pkgIndexFile(true), URI(URI), Dist(Dist), Section(Section),
 405                                 Language(Translation)
 406 {}
 407                                                                         /*}}}*/
 408 // TranslationIndex::Trans* - Return the URI to the translation files   /*{{{*/
 409 // ---------------------------------------------------------------------
 410 /* */
 411 inline string debTranslationsIndex::IndexFile(const char *Type) const
 412 {
 413    string s =_config->FindDir("Dir::State::lists") + URItoFileName(IndexURI(Type));
 414    string sgzip = s + ".gz";
 415    if (!FileExists(s) && FileExists(sgzip))
 416        return sgzip;
 417    else
 418        return s;
 419 }
 420 string debTranslationsIndex::IndexURI(const char *Type) const
 421 {
 422    string Res;
 423    if (Dist[Dist.size() - 1] == '/')
 424    {
 425       if (Dist != "/")
 426          Res = URI + Dist;
 427       else
 428          Res = URI;
 429    }
 430    else
 431       Res = URI + "dists/" + Dist + '/' + Section +
 432       "/i18n/Translation-";
 433
 434    Res += Type;
 435    return Res;
 436 }
 437                                                                         /*}}}*/
 438 // TranslationsIndex::GetIndexes - Fetch the index files                /*{{{*/
 439 // ---------------------------------------------------------------------
 440 /* */
 441 bool debTranslationsIndex::GetIndexes(pkgAcquire *Owner) const
 442 {
 443    string const TranslationFile = string("Translation-").append(Language);
 444    new pkgAcqIndexTrans(Owner, IndexURI(Language),
 445                         Info(TranslationFile.c_str()),
 446                         TranslationFile);
 447
 448    return true;
 449 }
 450                                                                         /*}}}*/
 451 // TranslationsIndex::Describe - Give a descriptive path to the index   /*{{{*/
 452 // ---------------------------------------------------------------------
 453 /* This should help the user find the index in the sources.list and
 454    in the filesystem for problem solving */
 455 string debTranslationsIndex::Describe(bool Short) const
 456 {
 457    char S[300];
 458    if (Short == true)
 459       snprintf(S,sizeof(S),"%s",Info(TranslationFile().c_str()).c_str());
 460    else
 461       snprintf(S,sizeof(S),"%s (%s)",Info(TranslationFile().c_str()).c_str(),
 462                IndexFile(Language).c_str());
 463    return S;
 464 }
 465                                                                         /*}}}*/
 466 // TranslationsIndex::Info - One liner describing the index URI         /*{{{*/
 467 // ---------------------------------------------------------------------
 468 /* */
 469 string debTranslationsIndex::Info(const char *Type) const
 470 {
 471    string Info = ::URI::NoUserPassword(URI) + ' ';
 472    if (Dist[Dist.size() - 1] == '/')
 473    {
 474       if (Dist != "/")
 475          Info += Dist;
 476    }
 477    else
 478       Info += Dist + '/' + Section;
 479    Info += " ";
 480    Info += Type;
 481    return Info;
 482 }
 483                                                                         /*}}}*/
 484 bool debTranslationsIndex::HasPackages() const                          /*{{{*/
 485 {
 486    return FileExists(IndexFile(Language));
 487 }
 488                                                                         /*}}}*/
 489 // TranslationsIndex::Exists - Check if the index is available          /*{{{*/
 490 // ---------------------------------------------------------------------
 491 /* */
 492 bool debTranslationsIndex::Exists() const
 493 {
 494    return FileExists(IndexFile(Language));
 495 }
 496                                                                         /*}}}*/
 497 // TranslationsIndex::Size - Return the size of the index               /*{{{*/
 498 // ---------------------------------------------------------------------
 499 /* This is really only used for progress reporting. */
 500 unsigned long debTranslationsIndex::Size() const
 501 {
 502    unsigned long size = 0;
 503
 504    /* we need to ignore errors here; if the lists are absent, just return 0 */
 505    _error->PushToStack();
 506
 507    FileFd f(IndexFile(Language), FileFd::ReadOnly, FileFd::Extension);
 508    if (!f.Failed())
 509       size = f.Size();
 510
 511    if (_error->PendingError() == true)
 512        size = 0;
 513    _error->RevertToStack();
 514
 515    return size;
 516 }
 517                                                                         /*}}}*/
 518 // TranslationsIndex::Merge - Load the index file into a cache          /*{{{*/
 519 // ---------------------------------------------------------------------
 520 /* */
 521 bool debTranslationsIndex::Merge(pkgCacheGenerator &Gen,OpProgress *Prog) const
 522 {
 523    // Check the translation file, if in use
 524    string TranslationFile = IndexFile(Language);
 525    if (FileExists(TranslationFile))
 526    {
 527      FileFd Trans(TranslationFile,FileFd::ReadOnly, FileFd::Extension);
 528      debListParser TransParser(&Trans);
 529      if (_error->PendingError() == true)
 530        return false;
 531
 532      if (Prog != NULL)
 533         Prog->SubProgress(0, Info(TranslationFile.c_str()));
 534      if (Gen.SelectFile(TranslationFile,string(),*this) == false)
 535        return _error->Error("Problem with SelectFile %s",TranslationFile.c_str());
 536
 537      // Store the IMS information
 538      pkgCache::PkgFileIterator TransFile = Gen.GetCurFile();
 539      TransFile->Size = Trans.FileSize();
 540      TransFile->mtime = Trans.ModificationTime();
 541
 542      if (Gen.MergeList(TransParser) == false)
 543        return _error->Error("Problem with MergeList %s",TranslationFile.c_str());
 544    }
 545
 546    return true;
 547 }
 548                                                                         /*}}}*/
 549 // TranslationsIndex::FindInCache - Find this index                             /*{{{*/
 550 // ---------------------------------------------------------------------
 551 /* */
 552 pkgCache::PkgFileIterator debTranslationsIndex::FindInCache(pkgCache &Cache) const
 553 {
 554    string FileName = IndexFile(Language);
 555
 556    pkgCache::PkgFileIterator File = Cache.FileBegin();
 557    for (; File.end() == false; ++File)
 558    {
 559       if (FileName != File.FileName())
 560          continue;
 561
 562       struct stat St;
 563       if (stat(File.FileName(),&St) != 0)
 564       {
 565          if (_config->FindB("Debug::pkgCacheGen", false))
 566             std::clog << "TranslationIndex::FindInCache - stat failed on " << File.FileName() << std::endl;
 567          return pkgCache::PkgFileIterator(Cache);
 568       }
 569       if ((unsigned)St.st_size != File->Size || St.st_mtime != File->mtime)
 570       {
 571          if (_config->FindB("Debug::pkgCacheGen", false))
 572             std::clog << "TranslationIndex::FindInCache - size (" << St.st_size << " <> " << File->Size
 573                         << ") or mtime (" << St.st_mtime << " <> " << File->mtime
 574                         << ") doesn't match for " << File.FileName() << std::endl;
 575          return pkgCache::PkgFileIterator(Cache);
 576       }
 577       return File;
 578    }
 579    return File;
 580 }
 581                                                                         /*}}}*/
 582 // StatusIndex::debStatusIndex - Constructor                            /*{{{*/
 583 // ---------------------------------------------------------------------
 584 /* */
 585 debStatusIndex::debStatusIndex(string File) : pkgIndexFile(true), File(File)
 586 {
 587 }
 588                                                                         /*}}}*/
 589 // StatusIndex::Size - Return the size of the index                     /*{{{*/
 590 // ---------------------------------------------------------------------
 591 /* */
 592 unsigned long debStatusIndex::Size() const
 593 {
 594    struct stat S;
 595    if (stat(File.c_str(),&S) != 0)
 596       return 0;
 597    return S.st_size;
 598 }
 599                                                                         /*}}}*/
 600 // StatusIndex::Merge - Load the index file into a cache                /*{{{*/
 601 // ---------------------------------------------------------------------
 602 /* */
 603 bool debStatusIndex::Merge(pkgCacheGenerator &Gen,OpProgress *Prog) const
 604 {
 605    FileFd Pkg(File,FileFd::ReadOnly, FileFd::Extension);
 606    if (_error->PendingError() == true)
 607       return false;
 608    debListParser Parser(&Pkg);
 609    if (_error->PendingError() == true)
 610       return false;
 611
 612    if (Prog != NULL)
 613       Prog->SubProgress(0,File);
 614    if (Gen.SelectFile(File,string(),*this,pkgCache::Flag::NotSource) == false)
 615       return _error->Error("Problem with SelectFile %s",File.c_str());
 616
 617    // Store the IMS information
 618    pkgCache::PkgFileIterator CFile = Gen.GetCurFile();
 619    CFile->Size = Pkg.FileSize();
 620    CFile->mtime = Pkg.ModificationTime();
 621    map_ptrloc const storage = Gen.WriteUniqString("now");
 622    CFile->Archive = storage;
 623
 624    if (Gen.MergeList(Parser) == false)
 625       return _error->Error("Problem with MergeList %s",File.c_str());
 626    return true;
 627 }
 628                                                                         /*}}}*/
 629 // StatusIndex::FindInCache - Find this index                           /*{{{*/
 630 // ---------------------------------------------------------------------
 631 /* */
 632 pkgCache::PkgFileIterator debStatusIndex::FindInCache(pkgCache &Cache) const
 633 {
 634    pkgCache::PkgFileIterator File = Cache.FileBegin();
 635    for (; File.end() == false; ++File)
 636    {
 637       if (this->File != File.FileName())
 638          continue;
 639
 640       struct stat St;
 641       if (stat(File.FileName(),&St) != 0)
 642       {
 643          if (_config->FindB("Debug::pkgCacheGen", false))
 644             std::clog << "StatusIndex::FindInCache - stat failed on " << File.FileName() << std::endl;
 645          return pkgCache::PkgFileIterator(Cache);
 646       }
 647       if ((unsigned)St.st_size != File->Size || St.st_mtime != File->mtime)
 648       {
 649          if (_config->FindB("Debug::pkgCacheGen", false))
 650             std::clog << "StatusIndex::FindInCache - size (" << St.st_size << " <> " << File->Size
 651                         << ") or mtime (" << St.st_mtime << " <> " << File->mtime
 652                         << ") doesn't match for " << File.FileName() << std::endl;
 653          return pkgCache::PkgFileIterator(Cache);
 654       }
 655       return File;
 656    }
 657    return File;
 658 }
 659                                                                         /*}}}*/
 660 // StatusIndex::Exists - Check if the index is available                /*{{{*/
 661 // ---------------------------------------------------------------------
 662 /* */
 663 APT_CONST bool debStatusIndex::Exists() const
 664 {
 665    // Abort if the file does not exist.
 666    return true;
 667 }
 668                                                                         /*}}}*/
 669
 670 // Index File types for Debian                                          /*{{{*/
 671 class debIFTypeSrc : public pkgIndexFile::Type
 672 {
 673    public:
 674
 675    debIFTypeSrc() {Label = "Debian Source Index";};
 676 };
 677 class debIFTypePkg : public pkgIndexFile::Type
 678 {
 679    public:
 680
 681    virtual pkgRecords::Parser *CreatePkgParser(pkgCache::PkgFileIterator File) const
 682    {
 683       return new debRecordParser(File.FileName(),*File.Cache());
 684    };
 685    debIFTypePkg() {Label = "Debian Package Index";};
 686 };
 687 class debIFTypeTrans : public debIFTypePkg
 688 {
 689    public:
 690    debIFTypeTrans() {Label = "Debian Translation Index";};
 691 };
 692 class debIFTypeStatus : public pkgIndexFile::Type
 693 {
 694    public:
 695
 696    virtual pkgRecords::Parser *CreatePkgParser(pkgCache::PkgFileIterator File) const
 697    {
 698       return new debRecordParser(File.FileName(),*File.Cache());
 699    };
 700    debIFTypeStatus() {Label = "Debian dpkg status file";};
 701 };
 702 static debIFTypeSrc _apt_Src;
 703 static debIFTypePkg _apt_Pkg;
 704 static debIFTypeTrans _apt_Trans;
 705 static debIFTypeStatus _apt_Status;
 706
 707 const pkgIndexFile::Type *debSourcesIndex::GetType() const
 708 {
 709    return &_apt_Src;
 710 }
 711 const pkgIndexFile::Type *debPackagesIndex::GetType() const
 712 {
 713    return &_apt_Pkg;
 714 }
 715 const pkgIndexFile::Type *debTranslationsIndex::GetType() const
 716 {
 717    return &_apt_Trans;
 718 }
 719 const pkgIndexFile::Type *debStatusIndex::GetType() const
 720 {
 721    return &_apt_Status;
 722 }
 723
 724                                                                         /*}}}*/