apt-pkg/edsp/edspwriter.cc

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 /* ######################################################################
   4    Set of methods to help writing and reading everything needed for EDSP
   5    ##################################################################### */
   6                                                                         /*}}}*/
   7 // Include Files                                                        /*{{{*/
   8 #include <apt-pkg/edspwriter.h>
   9 #include <apt-pkg/error.h>
  10 #include <apt-pkg/configuration.h>
  11 #include <apt-pkg/version.h>
  12 #include <apt-pkg/policy.h>
  13
  14 #include <apti18n.h>
  15 #include <limits>
  16
  17 #include <stdio.h>
  18                                                                         /*}}}*/
  19
  20 // edspWriter::WriteScenario - to the given file descriptor             /*{{{*/
  21 bool edspWriter::WriteScenario(pkgDepCache &Cache, FILE* output)
  22 {
  23    // we could use pkgCache::DepType and ::Priority, but these would be lokalized strings…
  24    const char * const PrioMap[] = {0, "important", "required", "standard",
  25                                    "optional", "extra"};
  26    const char * const DepMap[] = {"", "Depends", "PreDepends", "Suggests",
  27                                   "Recommends" , "Conflicts", "Replaces",
  28                                   "Obsoletes", "Breaks", "Enhances"};
  29
  30    for (pkgCache::PkgIterator Pkg = Cache.PkgBegin(); Pkg.end() == false; ++Pkg)
  31    {
  32       for (pkgCache::VerIterator Ver = Pkg.VersionList(); Ver.end() == false; ++Ver)
  33       {
  34          fprintf(output, "Package: %s\n", Pkg.Name());
  35          fprintf(output, "Architecture: %s\n", Ver.Arch());
  36          fprintf(output, "Version: %s\n", Ver.VerStr());
  37          if (Pkg.CurrentVer() == Ver)
  38             fprintf(output, "Installed: yes\n");
  39          if (Pkg->SelectedState == pkgCache::State::Hold)
  40             fprintf(output, "Hold: yes\n");
  41          fprintf(output, "APT-ID: %u\n", Ver->ID);
  42          fprintf(output, "Priority: %s\n", PrioMap[Ver->Priority]);
  43          if ((Pkg->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential)
  44             fprintf(output, "Essential: yes\n");
  45          fprintf(output, "Section: %s\n", Ver.Section());
  46          if (Ver->MultiArch == pkgCache::Version::Allowed || Ver->MultiArch == pkgCache::Version::AllAllowed)
  47             fprintf(output, "Multi-Arch: allowed\n");
  48          else if (Ver->MultiArch == pkgCache::Version::Foreign || Ver->MultiArch == pkgCache::Version::AllForeign)
  49             fprintf(output, "Multi-Arch: foreign\n");
  50          else if (Ver->MultiArch == pkgCache::Version::Same)
  51             fprintf(output, "Multi-Arch: same\n");
  52          signed short Pin = std::numeric_limits<signed short>::min();
  53          for (pkgCache::VerFileIterator File = Ver.FileList(); File.end() == false; ++File) {
  54             signed short const p = Cache.GetPolicy().GetPriority(File.File());
  55             if (Pin < p)
  56                Pin = p;
  57          }
  58          fprintf(output, "APT-Pin: %d\n", Pin);
  59          if (Cache.GetCandidateVer(Pkg) == Ver)
  60             fprintf(output, "APT-Candidate: yes\n");
  61          if ((Cache[Pkg].Flags & pkgCache::Flag::Auto) == pkgCache::Flag::Auto)
  62             fprintf(output, "APT-Automatic: yes\n");
  63          std::string dependencies[pkgCache::Dep::Enhances + 1];
  64          bool orGroup = false;
  65          for (pkgCache::DepIterator Dep = Ver.DependsList(); Dep.end() == false; ++Dep)
  66          {
  67             // Ignore implicit dependencies for multiarch here
  68             if (strcmp(Pkg.Arch(), Dep.TargetPkg().Arch()) != 0)
  69                continue;
  70             if (orGroup == false)
  71                dependencies[Dep->Type].append(", ");
  72             dependencies[Dep->Type].append(Dep.TargetPkg().Name());
  73             if (Dep->Version != 0)
  74                dependencies[Dep->Type].append(" (").append(pkgCache::CompTypeDeb(Dep->CompareOp)).append(" ").append(Dep.TargetVer()).append(")");
  75             if ((Dep->CompareOp & pkgCache::Dep::Or) == pkgCache::Dep::Or)
  76             {
  77                dependencies[Dep->Type].append(" | ");
  78                orGroup = true;
  79             }
  80             else
  81                orGroup = false;
  82          }
  83          for (int i = 1; i < pkgCache::Dep::Enhances + 1; ++i)
  84             if (dependencies[i].empty() == false)
  85                fprintf(output, "%s: %s\n", DepMap[i], dependencies[i].c_str()+2);
  86          string provides;
  87          for (pkgCache::PrvIterator Prv = Ver.ProvidesList(); Prv.end() == false; ++Prv)
  88          {
  89             // Ignore implicit provides for multiarch here
  90             if (strcmp(Pkg.Arch(), Prv.ParentPkg().Arch()) != 0 || strcmp(Pkg.Name(),Prv.Name()) == 0)
  91                continue;
  92             provides.append(", ").append(Prv.Name());
  93          }
  94          if (provides.empty() == false)
  95             fprintf(output, "Provides: %s\n", provides.c_str()+2);
  96
  97
  98          fprintf(output, "\n");
  99       }
 100    }
 101    return true;
 102 }
 103                                                                         /*}}}*/
 104 // edspWriter::WriteRequest - to the given file descriptor              /*{{{*/
 105 bool edspWriter::WriteRequest(pkgDepCache &Cache, FILE* output)
 106 {
 107    string del, inst, upgrade;
 108    for (pkgCache::PkgIterator Pkg = Cache.PkgBegin(); Pkg.end() == false; ++Pkg)
 109    {
 110       string* req;
 111       if (Cache[Pkg].Delete() == true)
 112          req = &del;
 113       else if (Cache[Pkg].NewInstall() == true)
 114          req = &inst;
 115       else if (Cache[Pkg].Upgrade() == true)
 116          req = &upgrade;
 117       else
 118          continue;
 119       req->append(", ").append(Pkg.FullName());
 120    }
 121    if (del.empty() == false)
 122       fprintf(output, "Remove: %s\n", del.c_str()+2);
 123    if (inst.empty() == false)
 124       fprintf(output, "Install: %s\n", inst.c_str()+2);
 125    if (upgrade.empty() == false)
 126       fprintf(output, "Upgrade: %s\n", upgrade.c_str()+2);
 127
 128    return true;
 129 }
 130                                                                         /*}}}*/
 131 bool edspWriter::ReadResponse(FILE* input, pkgDepCache &Cache) { return false; }
 132
 133 bool edspWriter::ReadRequest(FILE* input, std::list<std::string> &install,
 134                         std::list<std::string> &remove)
 135 { return false; }
 136 bool edspWriter::ApplyRequest(std::list<std::string> const &install,
 137                          std::list<std::string> const &remove,
 138                          pkgDepCache &Cache)
 139 { return false; }
 140 // edspWriter::WriteSolution - to the given file descriptor             /*{{{*/
 141 bool edspWriter::WriteSolution(pkgDepCache &Cache, FILE* output)
 142 {
 143    bool const Debug = _config->FindB("Debug::EDSPWriter::WriteSolution", false);
 144    for (pkgCache::PkgIterator Pkg = Cache.PkgBegin(); Pkg.end() == false; ++Pkg)
 145    {
 146       if (Cache[Pkg].Delete() == true)
 147          fprintf(output, "Remove: %d\n", Cache.GetCandidateVer(Pkg)->ID);
 148       else if (Cache[Pkg].NewInstall() == true || Cache[Pkg].Upgrade() == true)
 149          fprintf(output, "Install: %d\n", Cache.GetCandidateVer(Pkg)->ID);
 150       else
 151          continue;
 152       if (Debug == true)
 153          fprintf(output, "Package: %s\nVersion: %s\n", Pkg.FullName().c_str(), Cache.GetCandidateVer(Pkg).VerStr());
 154       fprintf(output, "\n");
 155    }
 156
 157    return true;
 158 }
 159                                                                         /*}}}*/
 160 bool edspWriter::WriteError(std::string const &message, FILE* output) { return false; }