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