* apt-pkg/algorithms.cc:

[apt.git] / apt-pkg / depcache.cc

diff --git a/apt-pkg/depcache.cc b/apt-pkg/depcache.cc
index 6eb6c1d85283029f2bfeb0037d070dc7c74748fe..15d7bac4397c8c8b3ace996a04673184e8dcbe31 100644 (file)
--- a/apt-pkg/depcache.cc
+++ b/apt-pkg/depcache.cc
@@ -24,6 +24,7 @@
 
 #include <iostream>
 #include <sstream>    
 
 #include <iostream>
 #include <sstream>    

+#include <set>

 
 #include <apti18n.h>    
 
 
 #include <apti18n.h>    
 


@@ -142,7 +143,7 @@ bool pkgDepCache::Init(OpProgress *Prog)
 bool pkgDepCache::readStateFile(OpProgress *Prog)
 {
    FileFd state_file;
 bool pkgDepCache::readStateFile(OpProgress *Prog)
 {
    FileFd state_file;

-   string state = _config->FindDir("Dir::State") + "pkgstates";
+   string state = _config->FindDir("Dir::State") + "extended_states";

    if(FileExists(state)) {
       state_file.Open(state, FileFd::ReadOnly);
       int file_size = state_file.Size();
    if(FileExists(state)) {
       state_file.Open(state, FileFd::ReadOnly);
       int file_size = state_file.Size();


@@ -180,28 +181,81 @@ bool pkgDepCache::readStateFile(OpProgress *Prog)
 
 bool pkgDepCache::writeStateFile(OpProgress *prog)
 {
 
 bool pkgDepCache::writeStateFile(OpProgress *prog)
 {

-   FileFd StateFile;
-   string state = _config->FindDir("Dir::State") + "pkgstates";
-

    if(_config->FindB("Debug::pkgAutoRemove",false))
       std::clog << "pkgDepCache::writeStateFile()" << std::endl;
 
    if(_config->FindB("Debug::pkgAutoRemove",false))
       std::clog << "pkgDepCache::writeStateFile()" << std::endl;
 

-   if(!StateFile.Open(state, FileFd::WriteEmpty))
-      return _error->Error(_("Failed to write StateFile %s"),
+   FileFd StateFile;
+   string state = _config->FindDir("Dir::State") + "extended_states";
+
+   // if it does not exist, create a empty one
+   if(!FileExists(state)) 
+   {
+      StateFile.Open(state, FileFd::WriteEmpty);
+      StateFile.Close();
+   }
+
+   // open it
+   if(!StateFile.Open(state, FileFd::ReadOnly))
+      return _error->Error(_("Failed to open StateFile %s"),

                           state.c_str());
 
                           state.c_str());
 

+   FILE *OutFile;
+   string outfile = state + ".tmp";
+   if((OutFile = fopen(outfile.c_str(),"w")) == NULL)
+      return _error->Error(_("Failed to write temporary StateFile %s"),
+                          outfile.c_str());
+
+   // first merge with the existing sections
+   pkgTagFile tagfile(&StateFile);
+   pkgTagSection section;
+   std::set<string> pkgs_seen;
+   const char *nullreorderlist[] = {0};
+   while(tagfile.Step(section)) {
+        string pkgname = section.FindS("Package");
+        // Silently ignore unknown packages and packages with no actual
+        // version.
+        pkgCache::PkgIterator pkg=Cache->FindPkg(pkgname);
+        if(pkg.end() || pkg.VersionList().end()) 
+           continue;
+        bool oldAuto = section.FindI("Auto-Installed");
+        bool newAuto = (PkgState[pkg->ID].Flags & Flag::Auto);
+        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";
+        rewrite[0].NewTag = 0;
+        rewrite[1].Tag = 0;
+        TFRewrite(OutFile, section, nullreorderlist, rewrite);
+        fprintf(OutFile,"\n");
+        pkgs_seen.insert(pkgname);
+   }
+   
+   // then write the ones we have not seen yet

    std::ostringstream ostr;
    std::ostringstream ostr;

-   for(pkgCache::PkgIterator pkg=Cache->PkgBegin(); !pkg.end();pkg++) {
-
+   for(pkgCache::PkgIterator pkg=Cache->PkgBegin(); !pkg.end(); pkg++) {

       if(PkgState[pkg->ID].Flags & Flag::Auto) {
       if(PkgState[pkg->ID].Flags & Flag::Auto) {

+        if (pkgs_seen.find(pkg.Name()) != pkgs_seen.end()) {
+           if(_config->FindB("Debug::pkgAutoRemove",false))
+              std::clog << "Skipping already written " << pkg.Name() << std::endl;
+           continue;
+        }

         if(_config->FindB("Debug::pkgAutoRemove",false))
         if(_config->FindB("Debug::pkgAutoRemove",false))

-           std::clog << "AutoInstall: " << pkg.Name() << std::endl;
+           std::clog << "Writing new AutoInstall: " 
+                     << pkg.Name() << std::endl;

         ostr.str(string(""));
         ostr << "Package: " << pkg.Name() 
              << "\nAuto-Installed: 1\n\n";
         ostr.str(string(""));
         ostr << "Package: " << pkg.Name() 
              << "\nAuto-Installed: 1\n\n";

-        StateFile.Write(ostr.str().c_str(), ostr.str().size());
+        fprintf(OutFile,ostr.str().c_str());
+        fprintf(OutFile,"\n");

       }
    }
       }
    }

+   fclose(OutFile);
+
+   // move the outfile over the real file
+   rename(outfile.c_str(), state.c_str());
+

    return true;
 }
 
    return true;
 }
 


@@ -219,7 +273,7 @@ bool pkgDepCache::CheckDep(DepIterator Dep,int Type,PkgIterator &Res)
       we allow it anyhow because dpkg does. Technically it is a packaging
       bug. Conflicts may never self match */
    if (Dep.TargetPkg() != Dep.ParentPkg() || 
       we allow it anyhow because dpkg does. Technically it is a packaging
       bug. Conflicts may never self match */
    if (Dep.TargetPkg() != Dep.ParentPkg() || 

-       (Dep->Type != Dep::Conflicts && Dep->Type != Dep::Obsoletes))
+       (Dep->Type != Dep::Conflicts && Dep->Type != Dep::DpkgBreaks && Dep->Type != Dep::Obsoletes))

    {
       PkgIterator Pkg = Dep.TargetPkg();
       // Check the base package
    {
       PkgIterator Pkg = Dep.TargetPkg();
       // Check the base package


@@ -249,7 +303,8 @@ bool pkgDepCache::CheckDep(DepIterator Dep,int Type,PkgIterator &Res)
    {
       /* Provides may never be applied against the same package if it is
          a conflicts. See the comment above. */
    {
       /* Provides may never be applied against the same package if it is
          a conflicts. See the comment above. */

-      if (P.OwnerPkg() == Pkg && Dep->Type == Dep::Conflicts)
+      if (P.OwnerPkg() == Pkg &&
+         (Dep->Type == Dep::Conflicts || Dep->Type == Dep::DpkgBreaks))

         continue;
       
       // Check if the provides is a hit
         continue;
       
       // Check if the provides is a hit


@@ -345,9 +400,11 @@ void pkgDepCache::AddStates(const PkgIterator &Pkg,int Add)
 {
    StateCache &State = PkgState[Pkg->ID];
    
 {
    StateCache &State = PkgState[Pkg->ID];
    

-   // The Package is broken
+   // The Package is broken (either minimal dep or policy dep)

    if ((State.DepState & DepInstMin) != DepInstMin)
       iBrokenCount += Add;
    if ((State.DepState & DepInstMin) != DepInstMin)
       iBrokenCount += Add;

+   if ((State.DepState & DepInstPolicy) != DepInstPolicy)
+      iPolicyBrokenCount += Add;

    
    // Bad state
    if (Pkg.State() != PkgIterator::NeedsNothing)
    
    // Bad state
    if (Pkg.State() != PkgIterator::NeedsNothing)


@@ -401,7 +458,9 @@ void pkgDepCache::BuildGroupOrs(VerIterator const &V)
 
       /* Invert for Conflicts. We have to do this twice to get the
          right sense for a conflicts group */
 
       /* Invert for Conflicts. We have to do this twice to get the
          right sense for a conflicts group */

-      if (D->Type == Dep::Conflicts || D->Type == Dep::Obsoletes)
+      if (D->Type == Dep::Conflicts ||
+         D->Type == Dep::DpkgBreaks ||
+         D->Type == Dep::Obsoletes)

         State = ~State;
       
       // Add to the group if we are within an or..
         State = ~State;
       
       // Add to the group if we are within an or..


@@ -412,7 +471,9 @@ void pkgDepCache::BuildGroupOrs(VerIterator const &V)
         Group = 0;
       
       // Invert for Conflicts
         Group = 0;
       
       // Invert for Conflicts

-      if (D->Type == Dep::Conflicts || D->Type == Dep::Obsoletes)
+      if (D->Type == Dep::Conflicts ||
+         D->Type == Dep::DpkgBreaks ||
+         D->Type == Dep::Obsoletes)

         State = ~State;
    }    
 }
         State = ~State;
    }    
 }


@@ -545,7 +606,9 @@ void pkgDepCache::Update(OpProgress *Prog)
               Group = 0;
 
            // Invert for Conflicts
               Group = 0;
 
            // Invert for Conflicts

-           if (D->Type == Dep::Conflicts || D->Type == Dep::Obsoletes)
+           if (D->Type == Dep::Conflicts ||
+               D->Type == Dep::DpkgBreaks ||
+               D->Type == Dep::Obsoletes)

               State = ~State;
         }       
       }
               State = ~State;
         }       
       }


@@ -575,7 +638,9 @@ void pkgDepCache::Update(DepIterator D)
       State = DependencyState(D);
     
       // Invert for Conflicts
       State = DependencyState(D);
     
       // Invert for Conflicts

-      if (D->Type == Dep::Conflicts || D->Type == Dep::Obsoletes)
+      if (D->Type == Dep::Conflicts ||
+         D->Type == Dep::DpkgBreaks ||
+         D->Type == Dep::Obsoletes)

         State = ~State;
 
       RemoveStates(D.ParentPkg());
         State = ~State;
 
       RemoveStates(D.ParentPkg());


@@ -709,7 +774,8 @@ void pkgDepCache::MarkDelete(PkgIterator const &Pkg, bool rPurge)
 // ---------------------------------------------------------------------
 /* */
 void pkgDepCache::MarkInstall(PkgIterator const &Pkg,bool AutoInst,
 // ---------------------------------------------------------------------
 /* */
 void pkgDepCache::MarkInstall(PkgIterator const &Pkg,bool AutoInst,

-                             unsigned long Depth, bool FromUser)
+                             unsigned long Depth, bool FromUser,
+                             bool ForceImportantDeps)

 {
    if (Depth > 100)
       return;
 {
    if (Depth > 100)
       return;


@@ -724,7 +790,8 @@ void pkgDepCache::MarkInstall(PkgIterator const &Pkg,bool AutoInst,
       installed */
    StateCache &P = PkgState[Pkg->ID];
    P.iFlags &= ~AutoKept;
       installed */
    StateCache &P = PkgState[Pkg->ID];
    P.iFlags &= ~AutoKept;

-   if (P.InstBroken() == false && (P.Mode == ModeInstall ||
+   if ((P.InstPolicyBroken() == false && P.InstBroken() == false) && 
+       (P.Mode == ModeInstall ||

        P.CandidateVer == (Version *)Pkg.CurrentVer()))
    {
       if (P.CandidateVer == (Version *)Pkg.CurrentVer() && P.InstallVer == 0)
        P.CandidateVer == (Version *)Pkg.CurrentVer()))
    {
       if (P.CandidateVer == (Version *)Pkg.CurrentVer() && P.InstallVer == 0)


@@ -735,11 +802,9 @@ void pkgDepCache::MarkInstall(PkgIterator const &Pkg,bool AutoInst,
    // See if there is even any possible instalation candidate
    if (P.CandidateVer == 0)
       return;
    // See if there is even any possible instalation candidate
    if (P.CandidateVer == 0)
       return;

-   

    // We dont even try to install virtual packages..
    if (Pkg->VersionList == 0)
       return;
    // We dont even try to install virtual packages..
    if (Pkg->VersionList == 0)
       return;

-   

    /* Target the candidate version and remove the autoflag. We reset the
       autoflag below if this was called recursively. Otherwise the user
       should have the ability to de-auto a package by changing its state */
    /* Target the candidate version and remove the autoflag. We reset the
       autoflag below if this was called recursively. Otherwise the user
       should have the ability to de-auto a package by changing its state */


@@ -793,10 +858,43 @@ void pkgDepCache::MarkInstall(PkgIterator const &Pkg,bool AutoInst,
 
       /* Check if this dep should be consider for install. If it is a user
          defined important dep and we are installed a new package then 
 
       /* Check if this dep should be consider for install. If it is a user
          defined important dep and we are installed a new package then 

-        it will be installed. Otherwise we only worry about critical deps */
+        it will be installed. Otherwise we only check for important
+         deps that have changed from the installed version
+      */

       if (IsImportantDep(Start) == false)
         continue;
       if (IsImportantDep(Start) == false)
         continue;

-      if (Pkg->CurrentVer != 0 && Start.IsCritical() == false)
+      
+      /* check if any ImportantDep() (but not Critial) where added
+       * since we installed the package
+       */
+      bool isNewImportantDep = false;
+      if(!ForceImportantDeps && !Start.IsCritical())
+      {
+        bool found=false;
+        VerIterator instVer = Pkg.CurrentVer();
+        if(!instVer.end())
+        {
+           for (DepIterator D = instVer.DependsList(); D.end() != true; D++)
+           {
+              //FIXME: deal better with or-groups(?)
+              DepIterator LocalStart = D;
+              
+              if(IsImportantDep(D) && Start.TargetPkg() == D.TargetPkg())
+                 found=true;
+           }
+           // this is a new dep if it was not found to be already
+           // a important dep of the installed pacakge
+           isNewImportantDep = !found;
+        }
+      }
+      if(isNewImportantDep)
+        if(_config->FindB("Debug::pkgDepCache::AutoInstall",false) == true)
+           std::clog << "new important dependency: " 
+                     << Start.TargetPkg().Name() << std::endl;
+
+      // skip important deps if the package is already installed
+      if (Pkg->CurrentVer != 0 && Start.IsCritical() == false 
+         && !isNewImportantDep && !ForceImportantDeps)

         continue;
       
       /* If we are in an or group locate the first or that can 
         continue;
       
       /* If we are in an or group locate the first or that can 


@@ -807,7 +905,8 @@ void pkgDepCache::MarkInstall(PkgIterator const &Pkg,bool AutoInst,
       /* This bit is for processing the possibilty of an install/upgrade
          fixing the problem */
       SPtrArray<Version *> List = Start.AllTargets();
       /* This bit is for processing the possibilty of an install/upgrade
          fixing the problem */
       SPtrArray<Version *> List = Start.AllTargets();

-      if ((DepState[Start->ID] & DepCVer) == DepCVer)
+      if (Start->Type != Dep::DpkgBreaks &&
+         (DepState[Start->ID] & DepCVer) == DepCVer)

       {
         // Right, find the best version to install..
         Version **Cur = List;
       {
         // Right, find the best version to install..
         Version **Cur = List;


@@ -844,21 +943,31 @@ void pkgDepCache::MarkInstall(PkgIterator const &Pkg,bool AutoInst,
               std::clog << "Installing " << InstPkg.Name() 
                         << " as dep of " << Pkg.Name() 
                         << std::endl;
               std::clog << "Installing " << InstPkg.Name() 
                         << " as dep of " << Pkg.Name() 
                         << std::endl;

-          MarkInstall(InstPkg, true, Depth + 1, false);
+           MarkInstall(InstPkg,true,Depth + 1, false, ForceImportantDeps);
+
+           // Set the autoflag, after MarkInstall because MarkInstall unsets it
+           if (P->CurrentVer == 0)
+              PkgState[InstPkg->ID].Flags |= Flag::Auto;

         }
         continue;
       }
         }
         continue;
       }

-      
+

       /* For conflicts we just de-install the package and mark as auto,
       /* For conflicts we just de-install the package and mark as auto,

-         Conflicts may not have or groups */
-      if (Start->Type == Dep::Conflicts || Start->Type == Dep::Obsoletes)
+         Conflicts may not have or groups.  For dpkg's Breaks we try to
+         upgrade the package. */
+      if (Start->Type == Dep::Conflicts || Start->Type == Dep::Obsoletes ||
+         Start->Type == Dep::DpkgBreaks)

       {
         for (Version **I = List; *I != 0; I++)
         {
            VerIterator Ver(*this,*I);
            PkgIterator Pkg = Ver.ParentPkg();
       {
         for (Version **I = List; *I != 0; I++)
         {
            VerIterator Ver(*this,*I);
            PkgIterator Pkg = Ver.ParentPkg();

-      
-           MarkDelete(Pkg);
+
+           if (Start->Type != Dep::DpkgBreaks)
+              MarkDelete(Pkg);
+           else
+              if (PkgState[Pkg->ID].CandidateVer != *I)
+                 MarkInstall(Pkg,true,Depth + 1, false, ForceImportantDeps);

         }
         continue;
       }      
         }
         continue;
       }      


@@ -1001,13 +1110,6 @@ pkgCache::VerIterator pkgDepCache::Policy::GetCandidateVer(PkgIterator Pkg)
    return Last;
 }
                                                                        /*}}}*/
    return Last;
 }
                                                                        /*}}}*/

-// Policy::IsImportantDep - True if the dependency is important                /*{{{*/
-// ---------------------------------------------------------------------
-/* */
-bool pkgDepCache::Policy::IsImportantDep(DepIterator Dep)
-{
-   return Dep.IsCritical();
-}

                                                                        /*}}}*/
 
 pkgDepCache::DefaultRootSetFunc::DefaultRootSetFunc()
                                                                        /*}}}*/
 
 pkgDepCache::DefaultRootSetFunc::DefaultRootSetFunc()


@@ -1222,3 +1324,33 @@ bool pkgDepCache::Sweep()
 
    return true;
 }
 
    return true;
 }

+
+// Policy::IsImportantDep - True if the dependency is important                /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool pkgDepCache::Policy::IsImportantDep(DepIterator Dep)
+{
+   if(Dep.IsCritical())
+      return true;
+   else if(Dep->Type == pkgCache::Dep::Recommends) 
+   {
+      if ( _config->FindB("APT::Install-Recommends", false))
+        return true;
+      // we suport a special mode to only install-recommends for certain
+      // sections
+      // FIXME: this is a meant as a temporarly solution until the 
+      //        recommends are cleaned up
+      string s = _config->Find("APT::Install-Recommends-Section","");
+      if(s.size() > 0) 
+      {
+        const char *sec = Dep.ParentVer().Section();
+        if (sec && strcmp(sec, s.c_str()) == 0)
+           return true;
+      }
+   }
+   else if(Dep->Type == pkgCache::Dep::Suggests)
+     return _config->FindB("APT::Install-Suggests", false);
+
+   return false;
+}
+                                                                       /*}}}*/