apt-pkg/edsp/edspindexfile.cc

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 /* ######################################################################
   4    The scenario file is designed to work as an intermediate file between
   5    APT and the resolver. Its on propose very similar to a dpkg status file
   6    ##################################################################### */
   7                                                                         /*}}}*/
   8 // Include Files                                                        /*{{{*/
   9 #include <config.h>
  10
  11 #include <apt-pkg/edspindexfile.h>
  12 #include <apt-pkg/edsplistparser.h>
  13 #include <apt-pkg/sourcelist.h>
  14 #include <apt-pkg/configuration.h>
  15 #include <apt-pkg/progress.h>
  16 #include <apt-pkg/error.h>
  17 #include <apt-pkg/strutl.h>
  18 #include <apt-pkg/acquire-item.h>
  19
  20 #include <sys/stat.h>
  21                                                                         /*}}}*/
  22
  23 // edspIndex::edspIndex - Constructor                                   /*{{{*/
  24 // ---------------------------------------------------------------------
  25 /* */
  26 edspIndex::edspIndex(string File) : debStatusIndex(File)
  27 {
  28 }
  29                                                                         /*}}}*/
  30 // StatusIndex::Merge - Load the index file into a cache                /*{{{*/
  31 bool edspIndex::Merge(pkgCacheGenerator &Gen,OpProgress *Prog) const
  32 {
  33    FileFd Pkg;
  34    if (File != "stdin")
  35       Pkg.Open(File, FileFd::ReadOnly);
  36    else
  37       Pkg.OpenDescriptor(STDIN_FILENO, FileFd::ReadOnly);
  38    if (_error->PendingError() == true)
  39       return false;
  40    edspListParser Parser(&Pkg);
  41    if (_error->PendingError() == true)
  42       return false;
  43
  44    if (Prog != NULL)
  45       Prog->SubProgress(0,File);
  46    if (Gen.SelectFile(File,string(),*this) == false)
  47       return _error->Error("Problem with SelectFile %s",File.c_str());
  48
  49    // Store the IMS information
  50    pkgCache::PkgFileIterator CFile = Gen.GetCurFile();
  51    struct stat St;
  52    if (fstat(Pkg.Fd(),&St) != 0)
  53       return _error->Errno("fstat","Failed to stat");
  54    CFile->Size = St.st_size;
  55    CFile->mtime = St.st_mtime;
  56    CFile->Archive = Gen.WriteUniqString("edsp::scenario");
  57
  58    if (Gen.MergeList(Parser) == false)
  59       return _error->Error("Problem with MergeList %s",File.c_str());
  60    return true;
  61 }
  62                                                                         /*}}}*/
  63 // Index File types for APT                                             /*{{{*/
  64 class edspIFType: public pkgIndexFile::Type
  65 {
  66    public:
  67    virtual pkgRecords::Parser *CreatePkgParser(pkgCache::PkgFileIterator File) const
  68    {
  69       // we don't have a record parser for this type as the file is not presistent
  70       return NULL;
  71    };
  72    edspIFType() {Label = "EDSP scenario file";};
  73 };
  74 static edspIFType _apt_Universe;
  75
  76 const pkgIndexFile::Type *edspIndex::GetType() const
  77 {
  78    return &_apt_Universe;
  79 }
  80                                                                         /*}}}*/