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 #ifdef __GNUG__
  13 #pragma implementation "apt-pkg/debindexfile.h"
  14 #endif
  15
  16 #include <apt-pkg/debindexfile.h>
  17 #include <apt-pkg/debsrcrecords.h>
  18 #include <apt-pkg/deblistparser.h>
  19 #include <apt-pkg/debrecords.h>
  20 #include <apt-pkg/sourcelist.h>
  21 #include <apt-pkg/configuration.h>
  22 #include <apt-pkg/progress.h>
  23 #include <apt-pkg/error.h>
  24 #include <apt-pkg/strutl.h>
  25 #include <apt-pkg/acquire-item.h>
  26 #include <apt-pkg/debmetaindex.h>
  27
  28 #include <sys/stat.h>
  29                                                                         /*}}}*/
  30
  31 // SourcesIndex::debSourcesIndex - Constructor                          /*{{{*/
  32 // ---------------------------------------------------------------------
  33 /* */
  34 debSourcesIndex::debSourcesIndex(string URI,string Dist,string Section,bool Trusted) :
  35      pkgIndexFile(Trusted), URI(URI), Dist(Dist), Section(Section)
  36 {
  37 }
  38                                                                         /*}}}*/
  39 // SourcesIndex::SourceInfo - Short 1 liner describing a source         /*{{{*/
  40 // ---------------------------------------------------------------------
  41 /* The result looks like:
  42      http://foo/ stable/main src 1.1.1 (dsc) */
  43 string debSourcesIndex::SourceInfo(pkgSrcRecords::Parser const &Record,
  44                                    pkgSrcRecords::File const &File) const
  45 {
  46    string Res;
  47    Res = ::URI::SiteOnly(URI) + ' ';
  48    if (Dist[Dist.size() - 1] == '/')
  49    {
  50       if (Dist != "/")
  51          Res += Dist;
  52    }
  53    else
  54       Res += Dist + '/' + Section;
  55
  56    Res += " ";
  57    Res += Record.Package();
  58    Res += " ";
  59    Res += Record.Version();
  60    if (File.Type.empty() == false)
  61       Res += " (" + File.Type + ")";
  62    return Res;
  63 }
  64                                                                         /*}}}*/
  65 // SourcesIndex::CreateSrcParser - Get a parser for the source files    /*{{{*/
  66 // ---------------------------------------------------------------------
  67 /* */
  68 pkgSrcRecords::Parser *debSourcesIndex::CreateSrcParser() const
  69 {
  70    string SourcesURI = URItoFileName(IndexURI("Sources"));
  71    return new debSrcRecordParser(_config->FindDir("Dir::State::lists") +
  72                                  SourcesURI,this);
  73 }
  74                                                                         /*}}}*/
  75 // SourcesIndex::Describe - Give a descriptive path to the index        /*{{{*/
  76 // ---------------------------------------------------------------------
  77 /* */
  78 string debSourcesIndex::Describe(bool Short) const
  79 {
  80    char S[300];
  81    if (Short == true)
  82       snprintf(S,sizeof(S),"%s",Info("Sources").c_str());
  83    else
  84       snprintf(S,sizeof(S),"%s (%s)",Info("Sources").c_str(),
  85                IndexFile("Sources").c_str());
  86
  87    return S;
  88 }
  89                                                                         /*}}}*/
  90 // SourcesIndex::Info - One liner describing the index URI              /*{{{*/
  91 // ---------------------------------------------------------------------
  92 /* */
  93 string debSourcesIndex::Info(const char *Type) const
  94 {
  95    string Info = ::URI::SiteOnly(URI) + ' ';
  96    if (Dist[Dist.size() - 1] == '/')
  97    {
  98       if (Dist != "/")
  99          Info += Dist;
 100    }
 101    else
 102       Info += Dist + '/' + Section;
 103    Info += " ";
 104    Info += Type;
 105    return Info;
 106 }
 107                                                                         /*}}}*/
 108 // SourcesIndex::Index* - Return the URI to the index files             /*{{{*/
 109 // ---------------------------------------------------------------------
 110 /* */
 111 inline string debSourcesIndex::IndexFile(const char *Type) const
 112 {
 113    return URItoFileName(IndexURI(Type));
 114 }
 115 string debSourcesIndex::IndexURI(const char *Type) const
 116 {
 117    string Res;
 118    if (Dist[Dist.size() - 1] == '/')
 119    {
 120       if (Dist != "/")
 121          Res = URI + Dist;
 122       else
 123          Res = URI;
 124    }
 125    else
 126       Res = URI + "dists/" + Dist + '/' + Section +
 127       "/source/";
 128
 129    Res += Type;
 130    return Res;
 131 }
 132                                                                         /*}}}*/
 133 // SourcesIndex::Exists - Check if the index is available               /*{{{*/
 134 // ---------------------------------------------------------------------
 135 /* */
 136 bool debSourcesIndex::Exists() const
 137 {
 138    return FileExists(IndexFile("Sources"));
 139 }
 140                                                                         /*}}}*/
 141 // SourcesIndex::Size - Return the size of the index                    /*{{{*/
 142 // ---------------------------------------------------------------------
 143 /* */
 144 unsigned long debSourcesIndex::Size() const
 145 {
 146    struct stat S;
 147    if (stat(IndexFile("Sources").c_str(),&S) != 0)
 148       return 0;
 149    return S.st_size;
 150 }
 151                                                                         /*}}}*/
 152
 153 // PackagesIndex::debPackagesIndex - Contructor                         /*{{{*/
 154 // ---------------------------------------------------------------------
 155 /* */
 156 debPackagesIndex::debPackagesIndex(string URI,string Dist,string Section,bool Trusted) :
 157                   pkgIndexFile(Trusted), URI(URI), Dist(Dist), Section(Section)
 158 {
 159 }
 160                                                                         /*}}}*/
 161
 162 string debPackagesIndex::ArchiveURI(string File) const
 163 {
 164    // FIXME: EVIL! Remove as soon as pdiff support is offical
 165    string remap = _config->Find("APT::URL-Remap::"+URI,"");
 166    if(!remap.empty())
 167       return remap+File;
 168
 169    return URI + File;
 170 }
 171
 172 // PackagesIndex::ArchiveInfo - Short version of the archive url        /*{{{*/
 173 // ---------------------------------------------------------------------
 174 /* This is a shorter version that is designed to be < 60 chars or so */
 175 string debPackagesIndex::ArchiveInfo(pkgCache::VerIterator Ver) const
 176 {
 177    string Res = ::URI::SiteOnly(URI) + ' ';
 178    if (Dist[Dist.size() - 1] == '/')
 179    {
 180       if (Dist != "/")
 181          Res += Dist;
 182    }
 183    else
 184       Res += Dist + '/' + Section;
 185
 186    Res += " ";
 187    Res += Ver.ParentPkg().Name();
 188    Res += " ";
 189    Res += Ver.VerStr();
 190    return Res;
 191 }
 192                                                                         /*}}}*/
 193 // PackagesIndex::Describe - Give a descriptive path to the index       /*{{{*/
 194 // ---------------------------------------------------------------------
 195 /* This should help the user find the index in the sources.list and
 196    in the filesystem for problem solving */
 197 string debPackagesIndex::Describe(bool Short) const
 198 {
 199    char S[300];
 200    if (Short == true)
 201       snprintf(S,sizeof(S),"%s",Info("Packages").c_str());
 202    else
 203       snprintf(S,sizeof(S),"%s (%s)",Info("Packages").c_str(),
 204                IndexFile("Packages").c_str());
 205    return S;
 206 }
 207                                                                         /*}}}*/
 208 // PackagesIndex::Info - One liner describing the index URI             /*{{{*/
 209 // ---------------------------------------------------------------------
 210 /* */
 211 string debPackagesIndex::Info(const char *Type) const
 212 {
 213    string Info = ::URI::SiteOnly(URI) + ' ';
 214    if (Dist[Dist.size() - 1] == '/')
 215    {
 216       if (Dist != "/")
 217          Info += Dist;
 218    }
 219    else
 220       Info += Dist + '/' + Section;
 221    Info += " ";
 222    Info += Type;
 223    return Info;
 224 }
 225                                                                         /*}}}*/
 226 // PackagesIndex::Index* - Return the URI to the index files            /*{{{*/
 227 // ---------------------------------------------------------------------
 228 /* */
 229 inline string debPackagesIndex::IndexFile(const char *Type) const
 230 {
 231    return _config->FindDir("Dir::State::lists") + URItoFileName(IndexURI(Type));
 232 }
 233 string debPackagesIndex::IndexURI(const char *Type) const
 234 {
 235    string Res;
 236    if (Dist[Dist.size() - 1] == '/')
 237    {
 238       if (Dist != "/")
 239          Res = URI + Dist;
 240       else
 241          Res = URI;
 242    }
 243    else
 244       Res = URI + "dists/" + Dist + '/' + Section +
 245       "/binary-" + _config->Find("APT::Architecture") + '/';
 246
 247    Res += Type;
 248    return Res;
 249 }
 250                                                                         /*}}}*/
 251 // PackagesIndex::Exists - Check if the index is available              /*{{{*/
 252 // ---------------------------------------------------------------------
 253 /* */
 254 bool debPackagesIndex::Exists() const
 255 {
 256    return FileExists(IndexFile("Packages"));
 257 }
 258                                                                         /*}}}*/
 259 // PackagesIndex::Size - Return the size of the index                   /*{{{*/
 260 // ---------------------------------------------------------------------
 261 /* This is really only used for progress reporting. */
 262 unsigned long debPackagesIndex::Size() const
 263 {
 264    struct stat S;
 265    if (stat(IndexFile("Packages").c_str(),&S) != 0)
 266       return 0;
 267    return S.st_size;
 268 }
 269                                                                         /*}}}*/
 270 // PackagesIndex::Merge - Load the index file into a cache              /*{{{*/
 271 // ---------------------------------------------------------------------
 272 /* */
 273 bool debPackagesIndex::Merge(pkgCacheGenerator &Gen,OpProgress &Prog) const
 274 {
 275    string PackageFile = IndexFile("Packages");
 276    FileFd Pkg(PackageFile,FileFd::ReadOnly);
 277    debListParser Parser(&Pkg);
 278    if (_error->PendingError() == true)
 279       return _error->Error("Problem opening %s",PackageFile.c_str());
 280
 281    Prog.SubProgress(0,Info("Packages"));
 282    ::URI Tmp(URI);
 283    if (Gen.SelectFile(PackageFile,Tmp.Host,*this) == false)
 284       return _error->Error("Problem with SelectFile %s",PackageFile.c_str());
 285
 286    // Store the IMS information
 287    pkgCache::PkgFileIterator File = Gen.GetCurFile();
 288    struct stat St;
 289    if (fstat(Pkg.Fd(),&St) != 0)
 290       return _error->Errno("fstat","Failed to stat");
 291    File->Size = St.st_size;
 292    File->mtime = St.st_mtime;
 293
 294    if (Gen.MergeList(Parser) == false)
 295       return _error->Error("Problem with MergeList %s",PackageFile.c_str());
 296
 297    // Check the release file
 298    string ReleaseFile = debReleaseIndex(URI,Dist).MetaIndexFile("Release");
 299    if (FileExists(ReleaseFile) == true)
 300    {
 301       FileFd Rel(ReleaseFile,FileFd::ReadOnly);
 302       if (_error->PendingError() == true)
 303          return false;
 304       Parser.LoadReleaseInfo(File,Rel,Section);
 305    }
 306
 307    return true;
 308 }
 309                                                                         /*}}}*/
 310 // PackagesIndex::FindInCache - Find this index                         /*{{{*/
 311 // ---------------------------------------------------------------------
 312 /* */
 313 pkgCache::PkgFileIterator debPackagesIndex::FindInCache(pkgCache &Cache) const
 314 {
 315    string FileName = IndexFile("Packages");
 316    pkgCache::PkgFileIterator File = Cache.FileBegin();
 317    for (; File.end() == false; File++)
 318    {
 319       if (FileName != File.FileName())
 320          continue;
 321
 322       struct stat St;
 323       if (stat(File.FileName(),&St) != 0)
 324          return pkgCache::PkgFileIterator(Cache);
 325       if ((unsigned)St.st_size != File->Size || St.st_mtime != File->mtime)
 326          return pkgCache::PkgFileIterator(Cache);
 327       return File;
 328    }
 329
 330    return File;
 331 }
 332                                                                         /*}}}*/
 333
 334 // StatusIndex::debStatusIndex - Constructor                            /*{{{*/
 335 // ---------------------------------------------------------------------
 336 /* */
 337 debStatusIndex::debStatusIndex(string File) : pkgIndexFile(true), File(File)
 338 {
 339 }
 340                                                                         /*}}}*/
 341 // StatusIndex::Size - Return the size of the index                     /*{{{*/
 342 // ---------------------------------------------------------------------
 343 /* */
 344 unsigned long debStatusIndex::Size() const
 345 {
 346    struct stat S;
 347    if (stat(File.c_str(),&S) != 0)
 348       return 0;
 349    return S.st_size;
 350 }
 351                                                                         /*}}}*/
 352 // StatusIndex::Merge - Load the index file into a cache                /*{{{*/
 353 // ---------------------------------------------------------------------
 354 /* */
 355 bool debStatusIndex::Merge(pkgCacheGenerator &Gen,OpProgress &Prog) const
 356 {
 357    FileFd Pkg(File,FileFd::ReadOnly);
 358    if (_error->PendingError() == true)
 359       return false;
 360    debListParser Parser(&Pkg);
 361    if (_error->PendingError() == true)
 362       return false;
 363
 364    Prog.SubProgress(0,File);
 365    if (Gen.SelectFile(File,string(),*this,pkgCache::Flag::NotSource) == false)
 366       return _error->Error("Problem with SelectFile %s",File.c_str());
 367
 368    // Store the IMS information
 369    pkgCache::PkgFileIterator CFile = Gen.GetCurFile();
 370    struct stat St;
 371    if (fstat(Pkg.Fd(),&St) != 0)
 372       return _error->Errno("fstat","Failed to stat");
 373    CFile->Size = St.st_size;
 374    CFile->mtime = St.st_mtime;
 375    CFile->Archive = Gen.WriteUniqString("now");
 376
 377    if (Gen.MergeList(Parser) == false)
 378       return _error->Error("Problem with MergeList %s",File.c_str());
 379    return true;
 380 }
 381                                                                         /*}}}*/
 382 // StatusIndex::FindInCache - Find this index                           /*{{{*/
 383 // ---------------------------------------------------------------------
 384 /* */
 385 pkgCache::PkgFileIterator debStatusIndex::FindInCache(pkgCache &Cache) const
 386 {
 387    pkgCache::PkgFileIterator File = Cache.FileBegin();
 388    for (; File.end() == false; File++)
 389    {
 390       if (this->File != File.FileName())
 391          continue;
 392
 393       struct stat St;
 394       if (stat(File.FileName(),&St) != 0)
 395          return pkgCache::PkgFileIterator(Cache);
 396       if ((unsigned)St.st_size != File->Size || St.st_mtime != File->mtime)
 397          return pkgCache::PkgFileIterator(Cache);
 398       return File;
 399    }
 400    return File;
 401 }
 402                                                                         /*}}}*/
 403 // StatusIndex::Exists - Check if the index is available                /*{{{*/
 404 // ---------------------------------------------------------------------
 405 /* */
 406 bool debStatusIndex::Exists() const
 407 {
 408    // Abort if the file does not exist.
 409    return true;
 410 }
 411                                                                         /*}}}*/
 412
 413 // Index File types for Debian                                          /*{{{*/
 414 class debIFTypeSrc : public pkgIndexFile::Type
 415 {
 416    public:
 417
 418    debIFTypeSrc() {Label = "Debian Source Index";};
 419 };
 420 class debIFTypePkg : public pkgIndexFile::Type
 421 {
 422    public:
 423
 424    virtual pkgRecords::Parser *CreatePkgParser(pkgCache::PkgFileIterator File) const
 425    {
 426       return new debRecordParser(File.FileName(),*File.Cache());
 427    };
 428    debIFTypePkg() {Label = "Debian Package Index";};
 429 };
 430 class debIFTypeStatus : public pkgIndexFile::Type
 431 {
 432    public:
 433
 434    virtual pkgRecords::Parser *CreatePkgParser(pkgCache::PkgFileIterator File) const
 435    {
 436       return new debRecordParser(File.FileName(),*File.Cache());
 437    };
 438    debIFTypeStatus() {Label = "Debian dpkg status file";};
 439 };
 440 static debIFTypeSrc _apt_Src;
 441 static debIFTypePkg _apt_Pkg;
 442 static debIFTypeStatus _apt_Status;
 443
 444 const pkgIndexFile::Type *debSourcesIndex::GetType() const
 445 {
 446    return &_apt_Src;
 447 }
 448 const pkgIndexFile::Type *debPackagesIndex::GetType() const
 449 {
 450    return &_apt_Pkg;
 451 }
 452 const pkgIndexFile::Type *debStatusIndex::GetType() const
 453 {
 454    return &_apt_Status;
 455 }
 456
 457                                                                         /*}}}*/