]> git.saurik.com Git - apt.git/blobdiff - apt-pkg/pkgcachegen.cc
Arch() on a MultiArch:all version should return "all" to be compatible
[apt.git] / apt-pkg / pkgcachegen.cc
index e2934d1faed97040419f0891947a70cbaf1e5f0f..ebda325f73f36e685d3b57cb831bcd61187f3d1d 100644 (file)
@@ -18,6 +18,7 @@
 #include <apt-pkg/progress.h>
 #include <apt-pkg/sourcelist.h>
 #include <apt-pkg/configuration.h>
+#include <apt-pkg/aptconfiguration.h>
 #include <apt-pkg/strutl.h>
 #include <apt-pkg/sptr.h>
 #include <apt-pkg/pkgsystem.h>
@@ -38,7 +39,7 @@ typedef vector<pkgIndexFile *>::iterator FileIterator;
 
 // CacheGenerator::pkgCacheGenerator - Constructor                     /*{{{*/
 // ---------------------------------------------------------------------
-/* We set the diry flag and make sure that is written to the disk */
+/* We set the dirty flag and make sure that is written to the disk */
 pkgCacheGenerator::pkgCacheGenerator(DynamicMMap *pMap,OpProgress *Prog) :
                    Map(*pMap), Cache(pMap,false), Progress(Prog),
                    FoundFileDeps(0)
@@ -107,13 +108,24 @@ bool pkgCacheGenerator::MergeList(ListParser &List,
    unsigned int Counter = 0;
    while (List.Step() == true)
    {
-      // Get a pointer to the package structure
-      string PackageName = List.Package();
+      string const PackageName = List.Package();
       if (PackageName.empty() == true)
         return false;
-      
+
+      /* As we handle Arch all packages as architecture bounded
+         we add all information to every (simulated) arch package */
+      std::vector<string> genArch;
+      if (List.ArchitectureAll() == true)
+        genArch = APT::Configuration::getArchitectures();
+      else
+        genArch.push_back(List.Architecture());
+
+      for (std::vector<string>::const_iterator arch = genArch.begin();
+          arch != genArch.end(); ++arch)
+      {
+      // Get a pointer to the package structure
       pkgCache::PkgIterator Pkg;
-      if (NewPackage(Pkg,PackageName) == false)
+      if (NewPackage(Pkg, PackageName, *arch) == false)
         return _error->Error(_("Error occurred while processing %s (NewPackage)"),PackageName.c_str());
       Counter++;
       if (Counter % 100 == 0 && Progress != 0)
@@ -137,7 +149,7 @@ bool pkgCacheGenerator::MergeList(ListParser &List,
         pkgCache::VerIterator Ver = Pkg.VersionList();
         map_ptrloc *LastVer = &Pkg->VersionList;
 
-        for (; Ver != 0 && Ver.end() == false; LastVer = &Ver->NextVer, Ver++)
+        for (; Ver.end() == false; LastVer = &Ver->NextVer, Ver++)
         {
            pkgCache::DescIterator Desc = Ver.DescriptionList();
            map_ptrloc *LastDesc = &Ver->DescriptionList;
@@ -145,7 +157,7 @@ bool pkgCacheGenerator::MergeList(ListParser &List,
 
            // don't add a new description if we have one for the given
            // md5 && language
-           for ( ; Desc != 0 && Desc.end() == false; Desc++)
+           for ( ; Desc.end() == false; Desc++)
               if (MD5SumValue(Desc.md5()) == CurMd5 && 
                   Desc.LanguageCode() == List.DescriptionLanguage())
                  duplicate=true;
@@ -153,7 +165,7 @@ bool pkgCacheGenerator::MergeList(ListParser &List,
               continue;
            
            for (Desc = Ver.DescriptionList();
-                Desc != 0 && Desc.end() == false;
+                Desc.end() == false;
                 LastDesc = &Desc->NextDesc, Desc++)
            {
               if (MD5SumValue(Desc.md5()) == CurMd5) 
@@ -175,7 +187,7 @@ bool pkgCacheGenerator::MergeList(ListParser &List,
       pkgCache::VerIterator Ver = Pkg.VersionList();
       map_ptrloc *LastVer = &Pkg->VersionList;
       int Res = 1;
-      for (; Ver != 0 && Ver.end() == false; LastVer = &Ver->NextVer, Ver++)
+      for (; Ver.end() == false; LastVer = &Ver->NextVer, Ver++)
       {
         Res = Cache.VS->CmpVersion(Version,Ver.VerStr());
         if (Res >= 0)
@@ -209,7 +221,7 @@ bool pkgCacheGenerator::MergeList(ListParser &List,
       // Skip to the end of the same version set.
       if (Res == 0)
       {
-        for (; Ver != 0 && Ver.end() == false; LastVer = &Ver->NextVer, Ver++)
+        for (; Ver.end() == false; LastVer = &Ver->NextVer, Ver++)
         {
            Res = Cache.VS->CmpVersion(Version,Ver.VerStr());
            if (Res != 0)
@@ -248,7 +260,7 @@ bool pkgCacheGenerator::MergeList(ListParser &List,
       map_ptrloc *LastDesc = &Ver->DescriptionList;
       
       // Skip to the end of description set
-      for (; Desc != 0 && Desc.end() == false; LastDesc = &Desc->NextDesc, Desc++);
+      for (; Desc.end() == false; LastDesc = &Desc->NextDesc, Desc++);
 
       // Add new description
       *LastDesc = NewDescription(Desc, List.DescriptionLanguage(), List.Description_md5(), *LastDesc);
@@ -256,6 +268,7 @@ bool pkgCacheGenerator::MergeList(ListParser &List,
 
       if ((*LastDesc == 0 && _error->PendingError()) || NewFileDesc(Desc,List) == false)
         return _error->Error(_("Error occurred while processing %s (NewFileDesc2)"),PackageName.c_str());
+      }
    }
 
    FoundFileDeps |= List.HasFileDeps();
@@ -306,7 +319,7 @@ bool pkgCacheGenerator::MergeFileProvides(ListParser &List)
 
       unsigned long Hash = List.VersionHash();
       pkgCache::VerIterator Ver = Pkg.VersionList();
-      for (; Ver != 0 && Ver.end() == false; Ver++)
+      for (; Ver.end() == false; Ver++)
       {
         if (Ver->Hash == Hash && Version.c_str() == Ver.VerStr())
         {
@@ -323,33 +336,71 @@ bool pkgCacheGenerator::MergeFileProvides(ListParser &List)
    return true;
 }
                                                                        /*}}}*/
+// CacheGenerator::NewGroup - Add a new group                          /*{{{*/
+// ---------------------------------------------------------------------
+/* This creates a new group structure and adds it to the hash table */
+bool pkgCacheGenerator::NewGroup(pkgCache::GrpIterator &Grp, const string &Name) {
+       Grp = Cache.FindGrp(Name);
+       if (Grp.end() == false)
+               return true;
+
+       // Get a structure
+       unsigned long const Group = Map.Allocate(sizeof(pkgCache::Group));
+       if (unlikely(Group == 0))
+               return false;
+
+       Grp = pkgCache::GrpIterator(Cache, Cache.GrpP + Group);
+       Grp->Name = Map.WriteString(Name);
+       if (unlikely(Grp->Name == 0))
+               return false;
+
+       // Insert it into the hash table
+       unsigned long const Hash = Cache.Hash(Name);
+       Grp->Next = Cache.HeaderP->GrpHashTable[Hash];
+       Cache.HeaderP->GrpHashTable[Hash] = Group;
+
+       Cache.HeaderP->GroupCount++;
+
+       return true;
+}
+                                                                       /*}}}*/
 // CacheGenerator::NewPackage - Add a new package                      /*{{{*/
 // ---------------------------------------------------------------------
 /* This creates a new package structure and adds it to the hash table */
-bool pkgCacheGenerator::NewPackage(pkgCache::PkgIterator &Pkg,const string &Name)
-{
-   Pkg = Cache.FindPkg(Name);
-   if (Pkg.end() == false)
-      return true;
+bool pkgCacheGenerator::NewPackage(pkgCache::PkgIterator &Pkg,const string &Name,
+                                       const string &Arch) {
+   pkgCache::GrpIterator Grp;
+   if (unlikely(NewGroup(Grp, Name) == false))
+      return false;
+
+   Pkg = Grp.FindPkg(Arch);
+      if (Pkg.end() == false)
+        return true;
 
    // Get a structure
-   unsigned long Package = Map.Allocate(sizeof(pkgCache::Package));
-   if (Package == 0)
+   unsigned long const Package = Map.Allocate(sizeof(pkgCache::Package));
+   if (unlikely(Package == 0))
       return false;
-   
    Pkg = pkgCache::PkgIterator(Cache,Cache.PkgP + Package);
-   
+
    // Insert it into the hash table
-   unsigned long Hash = Cache.Hash(Name);
-   Pkg->NextPackage = Cache.HeaderP->HashTable[Hash];
-   Cache.HeaderP->HashTable[Hash] = Package;
-   
-   // Set the name and the ID
-   Pkg->Name = Map.WriteString(Name);
-   if (Pkg->Name == 0)
+   unsigned long const Hash = Cache.Hash(Name);
+   Pkg->NextPackage = Cache.HeaderP->PkgHashTable[Hash];
+   Cache.HeaderP->PkgHashTable[Hash] = Package;
+
+   // remember the packages in the group
+   Grp->FirstPackage = Package;
+   if (Grp->LastPackage == 0)
+      Grp->LastPackage = Package;
+
+   // Set the name, arch and the ID
+   Pkg->Name = Grp->Name;
+   Pkg->Group = Grp.Index();
+   Pkg->Arch = WriteUniqString(Arch.c_str());
+   if (unlikely(Pkg->Arch == 0))
       return false;
    Pkg->ID = Cache.HeaderP->PackageCount++;
-   
+
    return true;
 }
                                                                        /*}}}*/
@@ -372,7 +423,7 @@ bool pkgCacheGenerator::NewFileVer(pkgCache::VerIterator &Ver,
    
    // Link it to the end of the list
    map_ptrloc *Last = &Ver->FileList;
-   for (pkgCache::VerFileIterator V = Ver.FileList(); V != 0 && V.end() == false; V++)
+   for (pkgCache::VerFileIterator V = Ver.FileList(); V.end() == false; V++)
       Last = &V->NextFile;
    VF->NextFile = *Last;
    *Last = VF.Index();
@@ -428,7 +479,7 @@ bool pkgCacheGenerator::NewFileDesc(pkgCache::DescIterator &Desc,
 
    // Link it to the end of the list
    map_ptrloc *Last = &Desc->FileList;
-   for (pkgCache::DescFileIterator D = Desc.FileList(); D != 0 && D.end() == false; D++)
+   for (pkgCache::DescFileIterator D = Desc.FileList(); D.end() == false; D++)
       Last = &D->NextFile;
 
    DF->NextFile = *Last;
@@ -468,21 +519,76 @@ map_ptrloc pkgCacheGenerator::NewDescription(pkgCache::DescIterator &Desc,
    return Description;
 }
                                                                        /*}}}*/
-// ListParser::NewDepends - Create a dependency element                        /*{{{*/
+// CacheGenerator::FinishCache - do various finish operations          /*{{{*/
+// ---------------------------------------------------------------------
+/* This prepares the Cache for delivery */
+bool pkgCacheGenerator::FinishCache(OpProgress &Progress) {
+       // FIXME: add progress reporting for this operation
+       // Do we have different architectures in your groups ?
+       vector<string> archs = APT::Configuration::getArchitectures();
+       if (archs.size() > 1) {
+               // Create Conflicts in between the group
+               for (pkgCache::GrpIterator G = GetCache().GrpBegin(); G.end() != true; G++) {
+                       string const PkgName = G.Name();
+                       for (pkgCache::PkgIterator P = G.PackageList(); P.end() != true; P = G.NextPkg(P)) {
+                               for (pkgCache::VerIterator V = P.VersionList(); V.end() != true; V++) {
+                                       string const Arch = V.Arch();
+                                       map_ptrloc *OldDepLast = NULL;
+                                       /* MultiArch handling introduces a lot of implicit Dependencies:
+                                          - MultiArch: same → Co-Installable if they have the same version
+                                          - Architecture: all → Need to be Co-Installable for internal reasons
+                                          - All others conflict with all other group members */
+                                       bool const coInstall = (V->MultiArch == pkgCache::Version::All ||
+                                                               V->MultiArch == pkgCache::Version::Same);
+                                       for (vector<string>::const_iterator A = archs.begin(); A != archs.end(); ++A) {
+                                               if (*A == Arch)
+                                                       continue;
+                                               /* We allow only one installed arch at the time
+                                                  per group, therefore each group member conflicts
+                                                  with all other group members */
+                                               pkgCache::PkgIterator D = G.FindPkg(*A);
+                                               if (D.end() == true)
+                                                       continue;
+                                               if (coInstall == true) {
+                                                       // Replaces: ${self}:other ( << ${binary:Version})
+                                                       NewDepends(D, V, V.VerStr(),
+                                                                  pkgCache::Dep::Less, pkgCache::Dep::Replaces,
+                                                                  OldDepLast);
+                                                       // Breaks: ${self}:other (!= ${binary:Version})
+                                                       NewDepends(D, V, V.VerStr(),
+                                                                  pkgCache::Dep::Less, pkgCache::Dep::DpkgBreaks,
+                                                                  OldDepLast);
+                                                       NewDepends(D, V, V.VerStr(),
+                                                                  pkgCache::Dep::Greater, pkgCache::Dep::DpkgBreaks,
+                                                                  OldDepLast);
+                                               } else {
+                                                       // Conflicts: ${self}:other
+                                                       NewDepends(D, V, "",
+                                                                  pkgCache::Dep::NoOp, pkgCache::Dep::Conflicts,
+                                                                  OldDepLast);
+                                               }
+                                       }
+                               }
+                       }
+               }
+       }
+       return true;
+}
+                                                                       /*}}}*/
+// CacheGenerator::NewDepends - Create a dependency element            /*{{{*/
 // ---------------------------------------------------------------------
 /* This creates a dependency element in the tree. It is linked to the
    version and to the package that it is pointing to. */
-bool pkgCacheGenerator::ListParser::NewDepends(pkgCache::VerIterator Ver,
-                                              const string &PackageName,
-                                              const string &Version,
-                                              unsigned int Op,
-                                              unsigned int Type)
+bool pkgCacheGenerator::NewDepends(pkgCache::PkgIterator &Pkg,
+                                  pkgCache::VerIterator &Ver,
+                                  string const &Version,
+                                  unsigned int const &Op,
+                                  unsigned int const &Type,
+                                  map_ptrloc *OldDepLast)
 {
-   pkgCache &Cache = Owner->Cache;
-   
    // Get a structure
-   unsigned long Dependency = Owner->Map.Allocate(sizeof(pkgCache::Dependency));
-   if (Dependency == 0)
+   unsigned long const Dependency = Map.Allocate(sizeof(pkgCache::Dependency));
+   if (unlikely(Dependency == 0))
       return false;
    
    // Fill it in
@@ -491,12 +597,7 @@ bool pkgCacheGenerator::ListParser::NewDepends(pkgCache::VerIterator Ver,
    Dep->Type = Type;
    Dep->CompareOp = Op;
    Dep->ID = Cache.HeaderP->DependsCount++;
-   
-   // Locate the target package
-   pkgCache::PkgIterator Pkg;
-   if (Owner->NewPackage(Pkg,PackageName) == false)
-      return false;
-   
+
    // Probe the reverse dependency list for a version string that matches
    if (Version.empty() == false)
    {
@@ -504,29 +605,23 @@ bool pkgCacheGenerator::ListParser::NewDepends(pkgCache::VerIterator Ver,
         if (I->Version != 0 && I.TargetVer() == Version)
            Dep->Version = I->Version;*/
       if (Dep->Version == 0)
-        if ((Dep->Version = WriteString(Version)) == 0)
+        if (unlikely((Dep->Version = Map.WriteString(Version)) == 0))
            return false;
    }
-      
+
    // Link it to the package
    Dep->Package = Pkg.Index();
    Dep->NextRevDepends = Pkg->RevDepends;
    Pkg->RevDepends = Dep.Index();
-   
-   /* Link it to the version (at the end of the list)
-      Caching the old end point speeds up generation substantially */
-   if (OldDepVer != Ver)
+
+   // Do we know where to link the Dependency to?
+   if (OldDepLast == NULL)
    {
       OldDepLast = &Ver->DependsList;
-      for (pkgCache::DepIterator D = Ver.DependsList(); D != 0 && D.end() == false; D++)
+      for (pkgCache::DepIterator D = Ver.DependsList(); D.end() == false; D++)
         OldDepLast = &D->NextDepends;
-      OldDepVer = Ver;
    }
 
-   // Is it a file dependency?
-   if (PackageName[0] == '/')
-      FoundFileDeps = true;
-   
    Dep->NextDepends = *OldDepLast;
    *OldDepLast = Dep.Index();
    OldDepLast = &Dep->NextDepends;
@@ -534,22 +629,58 @@ bool pkgCacheGenerator::ListParser::NewDepends(pkgCache::VerIterator Ver,
    return true;
 }
                                                                        /*}}}*/
+// ListParser::NewDepends - Create the environment for a new dependency        /*{{{*/
+// ---------------------------------------------------------------------
+/* This creates a Group and the Package to link this dependency to if
+   needed and handles also the caching of the old endpoint */
+bool pkgCacheGenerator::ListParser::NewDepends(pkgCache::VerIterator Ver,
+                                              const string &PackageName,
+                                              const string &Arch,
+                                              const string &Version,
+                                              unsigned int Op,
+                                              unsigned int Type)
+{
+   pkgCache::GrpIterator Grp;
+   if (unlikely(Owner->NewGroup(Grp, PackageName) == false))
+      return false;
+
+   // Locate the target package
+   pkgCache::PkgIterator Pkg = Grp.FindPkg(Arch);
+   if (Pkg.end() == true) {
+      if (unlikely(Owner->NewPackage(Pkg, PackageName, Arch) == false))
+        return false;
+   }
+
+   // Is it a file dependency?
+   if (unlikely(PackageName[0] == '/'))
+      FoundFileDeps = true;
+
+   /* Caching the old end point speeds up generation substantially */
+   if (OldDepVer != Ver) {
+      OldDepLast = NULL;
+      OldDepVer = Ver;
+   }
+
+   return Owner->NewDepends(Pkg, Ver, Version, Op, Type, OldDepLast);
+}
+                                                                       /*}}}*/
 // ListParser::NewProvides - Create a Provides element                 /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 bool pkgCacheGenerator::ListParser::NewProvides(pkgCache::VerIterator Ver,
-                                               const string &PackageName,
+                                               const string &PkgName,
+                                               const string &PkgArch,
                                                const string &Version)
 {
    pkgCache &Cache = Owner->Cache;
 
    // We do not add self referencing provides
-   if (Ver.ParentPkg().Name() == PackageName)
+   if (Ver.ParentPkg().Name() == PkgName && PkgArch == Ver.Arch())
       return true;
    
    // Get a structure
-   unsigned long Provides = Owner->Map.Allocate(sizeof(pkgCache::Provides));
-   if (Provides == 0)
+   unsigned long const Provides = Owner->Map.Allocate(sizeof(pkgCache::Provides));
+   if (unlikely(Provides == 0))
       return false;
    Cache.HeaderP->ProvidesCount++;
    
@@ -558,12 +689,12 @@ bool pkgCacheGenerator::ListParser::NewProvides(pkgCache::VerIterator Ver,
    Prv->Version = Ver.Index();
    Prv->NextPkgProv = Ver->ProvidesList;
    Ver->ProvidesList = Prv.Index();
-   if (Version.empty() == false && (Prv->ProvideVersion = WriteString(Version)) == 0)
+   if (Version.empty() == false && unlikely((Prv->ProvideVersion = WriteString(Version)) == 0))
       return false;
    
    // Locate the target package
    pkgCache::PkgIterator Pkg;
-   if (Owner->NewPackage(Pkg,PackageName) == false)
+   if (unlikely(Owner->NewPackage(Pkg,PkgName, PkgArch) == false))
       return false;
    
    // Link it to the package
@@ -670,7 +801,7 @@ static bool CheckValidity(const string &CacheFile, FileIterator Start,
    
    // Map it
    FileFd CacheF(CacheFile,FileFd::ReadOnly);
-   SPtr<MMap> Map = new MMap(CacheF,MMap::Public | MMap::ReadOnly);
+   SPtr<MMap> Map = new MMap(CacheF,0);
    pkgCache Cache(Map);
    if (_error->PendingError() == true || Map->Size() == 0)
    {
@@ -854,7 +985,7 @@ bool pkgMakeStatusCache(pkgSourceList &List,OpProgress &Progress,
    else
    {
       // Just build it in memory..
-      Map = new DynamicMMap(MMap::Public,MapSize);
+      Map = new DynamicMMap(0,MapSize);
    }
    
    // Lets try the source cache.
@@ -866,8 +997,9 @@ bool pkgMakeStatusCache(pkgSourceList &List,OpProgress &Progress,
       // Preload the map with the source cache
       FileFd SCacheF(SrcCacheFile,FileFd::ReadOnly);
       unsigned long alloc = Map->RawAllocate(SCacheF.Size());
-      if (alloc == 0 || SCacheF.Read((unsigned char *)Map->Data() + alloc,
-                                    SCacheF.Size()) == false)
+      if ((alloc == 0 && _error->PendingError())
+               || SCacheF.Read((unsigned char *)Map->Data() + alloc,
+                               SCacheF.Size()) == false)
         return false;
 
       TotalSize = ComputeSize(Files.begin()+EndOfSource,Files.end());
@@ -879,6 +1011,9 @@ bool pkgMakeStatusCache(pkgSourceList &List,OpProgress &Progress,
       if (BuildCache(Gen,Progress,CurrentSize,TotalSize,
                     Files.begin()+EndOfSource,Files.end()) == false)
         return false;
+
+      // FIXME: move me to a better place
+      Gen.FinishCache(Progress);
    }
    else
    {
@@ -919,6 +1054,9 @@ bool pkgMakeStatusCache(pkgSourceList &List,OpProgress &Progress,
       if (BuildCache(Gen,Progress,CurrentSize,TotalSize,
                     Files.begin()+EndOfSource,Files.end()) == false)
         return false;
+
+      // FIXME: move me to a better place
+      Gen.FinishCache(Progress);
    }
 
    if (_error->PendingError() == true)
@@ -928,7 +1066,7 @@ bool pkgMakeStatusCache(pkgSourceList &List,OpProgress &Progress,
       if (CacheF != 0)
       {
         delete Map.UnGuard();
-        *OutMap = new MMap(*CacheF,MMap::Public | MMap::ReadOnly);
+        *OutMap = new MMap(*CacheF,0);
       }
       else
       {
@@ -950,8 +1088,7 @@ bool pkgMakeOnlyStatusCache(OpProgress &Progress,DynamicMMap **OutMap)
    if (_system->AddStatusFiles(Files) == false)
       return false;
    
-   SPtr<DynamicMMap> Map;   
-   Map = new DynamicMMap(MMap::Public,MapSize);
+   SPtr<DynamicMMap> Map = new DynamicMMap(0,MapSize);
    unsigned long CurrentSize = 0;
    unsigned long TotalSize = 0;
    
@@ -965,7 +1102,10 @@ bool pkgMakeOnlyStatusCache(OpProgress &Progress,DynamicMMap **OutMap)
    if (BuildCache(Gen,Progress,CurrentSize,TotalSize,
                  Files.begin()+EndOfSource,Files.end()) == false)
       return false;
-   
+
+   // FIXME: move me to a better place
+   Gen.FinishCache(Progress);
+
    if (_error->PendingError() == true)
       return false;
    *OutMap = Map.UnGuard();