]> git.saurik.com Git - apt.git/blobdiff - apt-pkg/depcache.cc
* apt-pkg/depcache.cc:
[apt.git] / apt-pkg / depcache.cc
index e817adb775408beca8a3948876869a5f961e1369..0f07de2fea80068ec2ea2048e1c74bd01e67b5af 100644 (file)
@@ -165,38 +165,50 @@ bool pkgDepCache::Init(OpProgress *Prog)
 bool pkgDepCache::readStateFile(OpProgress *Prog)                      /*{{{*/
 {
    FileFd state_file;
-   string state = _config->FindDir("Dir::State") + "extended_states";
+   string const state = _config->FindDir("Dir::State") + "extended_states";
    if(FileExists(state)) {
       state_file.Open(state, FileFd::ReadOnly);
-      int file_size = state_file.Size();
+      int const file_size = state_file.Size();
       if(Prog != NULL)
         Prog->OverallProgress(0, file_size, 1, 
                               _("Reading state information"));
 
       pkgTagFile tagfile(&state_file);
       pkgTagSection section;
-      int amt=0;
-      bool debug_autoremove=_config->FindB("Debug::pkgAutoRemove",false);
+      int amt = 0;
+      bool const debug_autoremove = _config->FindB("Debug::pkgAutoRemove",false);
       while(tagfile.Step(section)) {
-        string pkgname = section.FindS("Package");
-        pkgCache::PkgIterator pkg=Cache->FindPkg(pkgname);
-        // Silently ignore unknown packages and packages with no actual
-        // version.
-        if(!pkg.end() && !pkg.VersionList().end()) {
-           short reason = section.FindI("Auto-Installed", 0);
-           if(reason > 0)
-              PkgState[pkg->ID].Flags  |= Flag::Auto;
-           if(debug_autoremove)
-              std::cout << "Auto-Installed : " << pkgname << std::endl;
-           amt+=section.size();
-           if(Prog != NULL)
-              Prog->OverallProgress(amt, file_size, 1, 
-                                    _("Reading state information"));
+        string const pkgname = section.FindS("Package");
+        string pkgarch = section.FindS("Architecture");
+        if (pkgarch.empty() == true)
+           pkgarch = "any";
+        pkgCache::PkgIterator pkg = Cache->FindPkg(pkgname, pkgarch);
+        // Silently ignore unknown packages and packages with no actual version.
+        if(pkg.end() == true || pkg->VersionList == 0)
+           continue;
+
+        short const reason = section.FindI("Auto-Installed", 0);
+        if(reason > 0)
+        {
+           PkgState[pkg->ID].Flags |= Flag::Auto;
+           if (unlikely(debug_autoremove))
+              std::cout << "Auto-Installed : " << pkg.FullName() << std::endl;
+           if (pkgarch == "any")
+           {
+              pkgCache::GrpIterator G = pkg.Group();
+              for (pkg = G.NextPkg(pkg); pkg.end() != true; pkg = G.NextPkg(pkg))
+                 if (pkg->VersionList != 0)
+                    PkgState[pkg->ID].Flags |= Flag::Auto;
+           }
         }
+        amt += section.size();
         if(Prog != NULL)
-           Prog->OverallProgress(file_size, file_size, 1, 
+           Prog->OverallProgress(amt, file_size, 1, 
                                  _("Reading state information"));
       }
+      if(Prog != NULL)
+        Prog->OverallProgress(file_size, file_size, 1,
+                              _("Reading state information"));
    }
 
    return true;
@@ -204,13 +216,13 @@ bool pkgDepCache::readStateFile(OpProgress *Prog)                 /*{{{*/
                                                                        /*}}}*/
 bool pkgDepCache::writeStateFile(OpProgress *prog, bool InstalledOnly) /*{{{*/
 {
-   bool debug_autoremove = _config->FindB("Debug::pkgAutoRemove",false);
+   bool const debug_autoremove = _config->FindB("Debug::pkgAutoRemove",false);
    
    if(debug_autoremove)
       std::clog << "pkgDepCache::writeStateFile()" << std::endl;
 
    FileFd StateFile;
-   string state = _config->FindDir("Dir::State") + "extended_states";
+   string const state = _config->FindDir("Dir::State") + "extended_states";
 
    // if it does not exist, create a empty one
    if(!FileExists(state)) 
@@ -225,7 +237,7 @@ bool pkgDepCache::writeStateFile(OpProgress *prog, bool InstalledOnly)      /*{{{*/
                           state.c_str());
 
    FILE *OutFile;
-   string outfile = state + ".tmp";
+   string const outfile = state + ".tmp";
    if((OutFile = fopen(outfile.c_str(),"w")) == NULL)
       return _error->Error(_("Failed to write temporary StateFile %s"),
                           outfile.c_str());
@@ -236,46 +248,72 @@ bool pkgDepCache::writeStateFile(OpProgress *prog, bool InstalledOnly)    /*{{{*/
    std::set<string> pkgs_seen;
    const char *nullreorderlist[] = {0};
    while(tagfile.Step(section)) {
-        string pkgname = section.FindS("Package");
+        string const pkgname = section.FindS("Package");
+        string pkgarch = section.FindS("Architecture");
+        if (pkgarch.empty() == true)
+           pkgarch = "native";
         // Silently ignore unknown packages and packages with no actual
         // version.
-        pkgCache::PkgIterator pkg=Cache->FindPkg(pkgname);
+        pkgCache::PkgIterator pkg = Cache->FindPkg(pkgname, pkgarch);
         if(pkg.end() || pkg.VersionList().end()) 
            continue;
-        bool newAuto = (PkgState[pkg->ID].Flags & Flag::Auto);
+        StateCache const &P = PkgState[pkg->ID];
+        bool newAuto = (P.Flags & Flag::Auto);
+        // skip not installed or now-removed ones if requested
+        if (InstalledOnly && (
+            (pkg->CurrentVer == 0 && P.Mode != ModeInstall) ||
+            (pkg->CurrentVer != 0 && P.Mode == ModeDelete)))
+        {
+           // The section is obsolete if it contains no other tag
+           unsigned int const count = section.Count();
+           if (count < 2 ||
+               (count == 2 && section.Exists("Auto-Installed")) ||
+               (count == 3 && section.Exists("Auto-Installed") && section.Exists("Architecture")))
+              continue;
+           else
+              newAuto = false;
+        }
         if(_config->FindB("Debug::pkgAutoRemove",false))
-           std::clog << "Update exisiting AutoInstall info: " 
-                     << pkg.Name() << std::endl;
-        TFRewriteData rewrite[2];
-        rewrite[0].Tag = "Auto-Installed";
-        rewrite[0].Rewrite = newAuto ? "1" : "0";
+           std::clog << "Update existing AutoInstall info: " 
+                     << pkg.FullName() << std::endl;
+        TFRewriteData rewrite[3];
+        rewrite[0].Tag = "Architecture";
+        rewrite[0].Rewrite = pkg.Arch();
         rewrite[0].NewTag = 0;
-        rewrite[1].Tag = 0;
+        rewrite[1].Tag = "Auto-Installed";
+        rewrite[1].Rewrite = newAuto ? "1" : "0";
+        rewrite[1].NewTag = 0;
+        rewrite[2].Tag = 0;
         TFRewrite(OutFile, section, nullreorderlist, rewrite);
         fprintf(OutFile,"\n");
-        pkgs_seen.insert(pkgname);
+        pkgs_seen.insert(pkg.FullName());
    }
    
    // then write the ones we have not seen yet
    std::ostringstream ostr;
    for(pkgCache::PkgIterator pkg=Cache->PkgBegin(); !pkg.end(); pkg++) {
-      if(PkgState[pkg->ID].Flags & Flag::Auto) {
-        if (pkgs_seen.find(pkg.Name()) != pkgs_seen.end()) {
+      StateCache const &P = PkgState[pkg->ID];
+      if(P.Flags & Flag::Auto) {
+        if (pkgs_seen.find(pkg.FullName()) != pkgs_seen.end()) {
            if(debug_autoremove)
-              std::clog << "Skipping already written " << pkg.Name() << std::endl;
+              std::clog << "Skipping already written " << pkg.FullName() << std::endl;
            continue;
         }
-         // skip not installed ones if requested
-         if(InstalledOnly && pkg->CurrentVer == 0)
-            continue;
+        // skip not installed ones if requested
+        if (InstalledOnly && (
+            (pkg->CurrentVer == 0 && P.Mode != ModeInstall) ||
+            (pkg->CurrentVer != 0 && P.Mode == ModeDelete)))
+           continue;
+        const char* const pkgarch = pkg.Arch();
+        if (strcmp(pkgarch, "all") == 0)
+           continue;
         if(debug_autoremove)
-           std::clog << "Writing new AutoInstall: " 
-                     << pkg.Name() << std::endl;
+           std::clog << "Writing new AutoInstall: " << pkg.FullName() << std::endl;
         ostr.str(string(""));
-        ostr << "Package: " << pkg.Name() 
+        ostr << "Package: " << pkg.Name()
+             << "\nArchitecture: " << pkgarch
              << "\nAuto-Installed: 1\n\n";
         fprintf(OutFile,"%s",ostr.str().c_str());
-        fprintf(OutFile,"\n");
       }
    }
    fclose(OutFile);
@@ -610,11 +648,43 @@ bool pkgDepCache::RemovePseudoInstalledPkg(PkgIterator &Pkg, std::set<unsigned l
    if (V->MultiArch != Version::All)
       return false;
 
-   unsigned char const DepState = VersionState(V.DependsList(),DepInstall,DepInstMin,DepInstPolicy);
-   if ((DepState & DepInstMin) == DepInstMin)
+   // Never ever kill an "all" package - they have no dependency so they can't be broken
+   if (strcmp(Pkg.Arch(),"all") == 0)
       return false;
 
-   // Dependencies for this arch all are not statisfied
+   unsigned char const CurDepState = VersionState(V.DependsList(),DepInstall,DepInstMin,DepInstPolicy);
+   if ((CurDepState & DepInstMin) == DepInstMin) {
+      // okay, the package isn't broken, but is the package also required?
+      // If it has no real dependencies, no installed rdepends and doesn't
+      // provide something of value, we will kill it as not required.
+      // These pseudopackages have otherwise interesting effects if they get
+      // a new dependency in a newer version…
+      for (pkgCache::DepIterator D = V.DependsList();
+          D.end() != true; ++D)
+        if (D.IsCritical() == true && D.ParentPkg()->Group != Pkg->Group)
+           return false;
+      for (DepIterator D = Pkg.RevDependsList(); D.end() != true; ++D)
+      {
+        if (D.IsCritical() == false)
+           continue;
+        PkgIterator const P = D.ParentPkg();
+        if (P->Group == Pkg->Group)
+           continue;
+        if (P->CurrentVer != 0)
+           return false;
+      }
+      for (PrvIterator Prv = V.ProvidesList(); Prv.end() != true; Prv++)
+        for (DepIterator d = Prv.ParentPkg().RevDependsList();
+             d.end() != true; ++d)
+        {
+           PkgIterator const P = d.ParentPkg();
+           if (P->CurrentVer != 0 &&
+               P->Group != Pkg->Group)
+              return false;
+        }
+   }
+
+   // Dependencies for this arch all package are not statisfied
    // so we installed it only for our convenience: get right of it now.
    RemoveSizes(Pkg);
    RemoveStates(Pkg);
@@ -635,15 +705,33 @@ bool pkgDepCache::RemovePseudoInstalledPkg(PkgIterator &Pkg, std::set<unsigned l
         recheck.insert(P.Index());
    }
 
-   if (V.end() != true)
-      for (PrvIterator Prv = V.ProvidesList(); Prv.end() != true; Prv++)
-        for (DepIterator d = Prv.ParentPkg().RevDependsList();
-             d.end() != true; ++d)
-        {
-           PkgIterator const P = d.ParentPkg();
-           if (P->CurrentVer != 0)
-              recheck.insert(P.Index());
-        }
+   for (DepIterator d = V.DependsList(); d.end() != true; ++d)
+   {
+      PkgIterator const P = d.TargetPkg();
+      for (PrvIterator Prv = P.ProvidesList(); Prv.end() != true; ++Prv)
+      {
+        PkgIterator const O = Prv.OwnerPkg();
+        if (O->CurrentVer != 0)
+           recheck.insert(O.Index());
+      }
+
+      if (P->CurrentVer != 0)
+        recheck.insert(P.Index());
+   }
+
+   for (PrvIterator Prv = V.ProvidesList(); Prv.end() != true; Prv++)
+   {
+      for (DepIterator d = Prv.ParentPkg().RevDependsList();
+          d.end() != true; ++d)
+      {
+        PkgIterator const P = d.ParentPkg();
+        if (P->CurrentVer == 0)
+           continue;
+
+           recheck.insert(P.Index());
+      }
+   }
+
 
    return true;
 }
@@ -727,6 +815,71 @@ void pkgDepCache::Update(OpProgress *Prog)
         }
         recheck.erase(p);
       }
+
+      /* Okay, we have killed a great amount of pseudopackages -
+        we have killed so many that we have now arch "all" packages
+        without an installed pseudo package, but we NEED an installed
+        pseudo package, so we will search now for a pseudo package
+        we can install without breaking everything. */
+      for (GrpIterator G = Cache->GrpBegin(); G.end() != true; ++G)
+      {
+        PkgIterator P = G.FindPkg("all");
+        if (P.end() == true)
+           continue;
+        if (P->CurrentVer == 0)
+           continue;
+        bool installed = false;
+        for (P = G.FindPkg("any"); P.end() != true; P = G.NextPkg(P))
+        {
+           if (strcmp(P.Arch(), "all") == 0)
+              continue;
+           if (P->CurrentVer == 0)
+              continue;
+           installed = true;
+           break;
+        }
+        if (installed == false)
+           recheck.insert(G.Index());
+      }
+      std::vector<std::string> Archs = APT::Configuration::getArchitectures();
+      bool checkChanged = false;
+      do {
+        for(std::set<unsigned long>::const_iterator g = recheck.begin();
+            g != recheck.end(); ++g) {
+           GrpIterator G = GrpIterator(*Cache, Cache->GrpP + *g);
+           VerIterator allV = G.FindPkg("all").CurrentVer();
+           for (std::vector<std::string>::const_iterator a = Archs.begin();
+                a != Archs.end(); ++a)
+           {
+              PkgIterator P = G.FindPkg(*a);
+              if (P.end() == true) continue;
+              for (VerIterator V = P.VersionList(); V.end() != true; ++V)
+              {
+                 if (allV->Hash != V->Hash ||
+                     strcmp(allV.VerStr(),V.VerStr()) != 0)
+                    continue;
+                 unsigned char const CurDepState = VersionState(V.DependsList(),DepInstall,DepInstMin,DepInstPolicy);
+                 if ((CurDepState & DepInstMin) != DepInstMin)
+                    break; // we found the correct version, but it is broken. Better try another arch or later again
+                 RemoveSizes(P);
+                 RemoveStates(P);
+                 P->CurrentVer = V.Index();
+                 PkgState[P->ID].InstallVer = V;
+                 AddStates(P);
+                 Update(P);
+                 AddSizes(P);
+                 checkChanged = true;
+                 break;
+              }
+           }
+           recheck.erase(g);
+        }
+      } while (checkChanged == true && recheck.empty() == false);
+
+      if (_config->FindB("Debug::MultiArchKiller", false) == true)
+        for(std::set<unsigned long>::const_iterator g = recheck.begin();
+            g != recheck.end(); ++g)
+           std::cout << "No pseudo package for »" << GrpIterator(*Cache, Cache->GrpP + *g).Name() << "« installed" << std::endl;
    }
 
    if (Prog != 0)
@@ -1426,7 +1579,7 @@ bool pkgDepCache::MarkRequired(InRootSetFunc &userFunc)
 
       // debug output
       if(debug_autoremove && PkgState[p->ID].Flags & Flag::Auto)
-        std::clog << "AutoDep: " << p.Name() << std::endl;
+        std::clog << "AutoDep: " << p.FullName() << std::endl;
    }
 
    // init vars
@@ -1460,13 +1613,18 @@ bool pkgDepCache::MarkRequired(InRootSetFunc &userFunc)
 // MarkPackage - mark a single package in Mark-and-Sweep               /*{{{*/
 void pkgDepCache::MarkPackage(const pkgCache::PkgIterator &pkg,
                              const pkgCache::VerIterator &ver,
-                             bool follow_recommends,
-                             bool follow_suggests)
+                             bool const &follow_recommends,
+                             bool const &follow_suggests)
 {
    pkgDepCache::StateCache &state = PkgState[pkg->ID];
-   VerIterator currver            = pkg.CurrentVer();
-   VerIterator candver            = state.CandidateVerIter(*this);
-   VerIterator instver            = state.InstVerIter(*this);
+
+   // if we are marked already we are done
+   if(state.Marked)
+      return;
+
+   VerIterator const currver = pkg.CurrentVer();
+   VerIterator const candver = state.CandidateVerIter(*this);
+   VerIterator const instver = state.InstVerIter(*this);
 
 #if 0
    // If a package was garbage-collected but is now being marked, we
@@ -1492,15 +1650,11 @@ void pkgDepCache::MarkPackage(const pkgCache::PkgIterator &pkg,
       !(ver == currver && instver.end() && !ver.end()))
       return;
 
-   // if we are marked already we are done
-   if(state.Marked)
-      return;
+   bool const debug_autoremove = _config->FindB("Debug::pkgAutoRemove", false);
 
-   bool debug_autoremove = _config->FindB("Debug::pkgAutoRemove", false);
-   
    if(debug_autoremove)
      {
-       std::clog << "Marking: " << pkg.Name();
+       std::clog << "Marking: " << pkg.FullName();
        if(!ver.end())
         std::clog << " " << ver.VerStr();
        if(!currver.end())
@@ -1512,8 +1666,34 @@ void pkgDepCache::MarkPackage(const pkgCache::PkgIterator &pkg,
 
    state.Marked=true;
 
-   if(!ver.end())
+   if(ver.end() == true)
+      return;
+
+   // If the version belongs to a Multi-Arch all package
+   // we will mark all others in this Group with this version also
+   // Beware: We compare versions here the lazy way: string comparision
+   // this is bad if multiple repositories provide different versions
+   // of the package with an identical version number - but even in this
+   // case the dependencies are likely the same.
+   if (ver->MultiArch == pkgCache::Version::All &&
+       strcmp(ver.Arch(true), "all") == 0)
    {
+      GrpIterator G = pkg.Group();
+      const char* const VerStr = ver.VerStr();
+      for (PkgIterator P = G.FindPkg("any");
+          P.end() != true; P = G.NextPkg(P))
+      {
+        for (VerIterator V = P.VersionList();
+             V.end() != true; ++V)
+        {
+           if (strcmp(VerStr, V.VerStr()) != 0)
+              continue;
+           MarkPackage(P, V, follow_recommends, follow_suggests);
+           break;
+        }
+      }
+   }
+
      for(DepIterator d = ver.DependsList(); !d.end(); ++d)
      {
        if(d->Type == Dep::Depends ||
@@ -1531,10 +1711,9 @@ void pkgDepCache::MarkPackage(const pkgCache::PkgIterator &pkg,
              {
                if(debug_autoremove)
                  {
-                   std::clog << "Following dep: " << d.ParentPkg().Name()
+                   std::clog << "Following dep: " << d.ParentPkg().FullName()
                              << " " << d.ParentVer().VerStr() << " "
-                             << d.DepType() << " "
-                             << d.TargetPkg().Name();
+                             << d.DepType() << " " << d.TargetPkg().FullName();
                    if((d->CompareOp & ~pkgCache::Dep::Or) != pkgCache::Dep::NoOp)
                      {
                        std::clog << " (" << d.CompType() << " "
@@ -1542,7 +1721,7 @@ void pkgDepCache::MarkPackage(const pkgCache::PkgIterator &pkg,
                      }
                    std::clog << std::endl;
                  }
-                MarkPackage(V.ParentPkg(), V, 
+                MarkPackage(V.ParentPkg(), V,
                             follow_recommends, follow_suggests);
              }
           }
@@ -1555,17 +1734,16 @@ void pkgDepCache::MarkPackage(const pkgCache::PkgIterator &pkg,
              {
                if(debug_autoremove)
                  {
-                   std::clog << "Following dep: " << d.ParentPkg().Name()
-                             << " " << d.ParentVer().VerStr() << " "
-                             << d.DepType() << " "
-                             << d.TargetPkg().Name();
+                   std::clog << "Following dep: " << d.ParentPkg().FullName() << " "
+                             << d.ParentVer().VerStr() << " "
+                             << d.DepType() << " " << d.TargetPkg().FullName() << " ";
                    if((d->CompareOp & ~pkgCache::Dep::Or) != pkgCache::Dep::NoOp)
                      {
                        std::clog << " (" << d.CompType() << " "
                                  << d.TargetVer() << ")";
                      }
                    std::clog << ", provided by "
-                             << prv.OwnerPkg().Name() << " "
+                             << prv.OwnerPkg().FullName() << " "
                              << prv.OwnerVer().VerStr()
                              << std::endl;
                  }
@@ -1576,7 +1754,6 @@ void pkgDepCache::MarkPackage(const pkgCache::PkgIterator &pkg,
           }
        }
      }
-   }
 }
                                                                        /*}}}*/
 bool pkgDepCache::Sweep()                                              /*{{{*/
@@ -1598,7 +1775,7 @@ bool pkgDepCache::Sweep()                                         /*{{{*/
      {
        state.Garbage=true;
        if(debug_autoremove)
-          std::cout << "Garbage: " << p.Name() << std::endl;
+          std::cout << "Garbage: " << p.FullName() << std::endl;
      }
   }