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/fileutl.h>
  19 #include <apt-pkg/acquire-item.h>
  20
  21 #include <sys/stat.h>
  22                                                                         /*}}}*/
  23
  24 // edspIndex::edspIndex - Constructor                                   /*{{{*/
  25 // ---------------------------------------------------------------------
  26 /* */
  27 edspIndex::edspIndex(string File) : debStatusIndex(File)
  28 {
  29 }
  30                                                                         /*}}}*/
  31 // StatusIndex::Merge - Load the index file into a cache                /*{{{*/
  32 bool edspIndex::Merge(pkgCacheGenerator &Gen,OpProgress *Prog) const
  33 {
  34    FileFd Pkg;
  35    if (File != "stdin")
  36       Pkg.Open(File, FileFd::ReadOnly);
  37    else
  38       Pkg.OpenDescriptor(STDIN_FILENO, FileFd::ReadOnly);
  39    if (_error->PendingError() == true)
  40       return false;
  41    edspListParser Parser(&Pkg);
  42    if (_error->PendingError() == true)
  43       return false;
  44
  45    if (Prog != NULL)
  46       Prog->SubProgress(0,File);
  47    if (Gen.SelectFile(File,string(),*this) == false)
  48       return _error->Error("Problem with SelectFile %s",File.c_str());
  49
  50    // Store the IMS information
  51    pkgCache::PkgFileIterator CFile = Gen.GetCurFile();
  52    struct stat St;
  53    if (fstat(Pkg.Fd(),&St) != 0)
  54       return _error->Errno("fstat","Failed to stat");
  55    CFile->Size = St.st_size;
  56    CFile->mtime = St.st_mtime;
  57    CFile->Archive = Gen.WriteUniqString("edsp::scenario");
  58
  59    if (Gen.MergeList(Parser) == false)
  60       return _error->Error("Problem with MergeList %s",File.c_str());
  61    return true;
  62 }
  63                                                                         /*}}}*/
  64 // Index File types for APT                                             /*{{{*/
  65 class edspIFType: public pkgIndexFile::Type
  66 {
  67    public:
  68    virtual pkgRecords::Parser *CreatePkgParser(pkgCache::PkgFileIterator File) const
  69    {
  70       // we don't have a record parser for this type as the file is not presistent
  71       return NULL;
  72    };
  73    edspIFType() {Label = "EDSP scenario file";};
  74 };
  75 static edspIFType _apt_Universe;
  76
  77 const pkgIndexFile::Type *edspIndex::GetType() const
  78 {
  79    return &_apt_Universe;
  80 }
  81                                                                         /*}}}*/