merge MultiArch-ABI. We don't support MultiArch yet (as most other tools),

but we support the usage of the new ABI so libapt users
can start to prepare for MultiArch (Closes: #536029)

6 files changed, 384 insertions, 175 deletions

diff --git a/apt-pkg/deb/debindexfile.cc b/apt-pkg/deb/debindexfile.cc
index 7379ca997..b89429d86 100644
--- a/apt-pkg/deb/debindexfile.cc
+++ b/apt-pkg/deb/debindexfile.cc
@@ -149,9 +149,12 @@ unsigned long debSourcesIndex::Size() const
 // PackagesIndex::debPackagesIndex - Contructor				/*{{{*/
 // ---------------------------------------------------------------------
 /* */
-debPackagesIndex::debPackagesIndex(string URI,string Dist,string Section,bool Trusted) : 
-                  pkgIndexFile(Trusted), URI(URI), Dist(Dist), Section(Section)
+debPackagesIndex::debPackagesIndex(string const &URI, string const &Dist, string const &Section,
+					bool const &Trusted, string const &Arch) :
+                  pkgIndexFile(Trusted), URI(URI), Dist(Dist), Section(Section), Architecture(Arch)
 {
+	if (Architecture == "native")
+		Architecture = _config->Find("APT::Architecture");
 }
 									/*}}}*/
 // PackagesIndex::ArchiveInfo - Short version of the archive url	/*{{{*/
@@ -171,6 +174,8 @@ string debPackagesIndex::ArchiveInfo(pkgCache::VerIterator Ver) const
    Res += " ";
    Res += Ver.ParentPkg().Name();
    Res += " ";
+   Res += Ver.Arch();
+   Res += " ";
    Res += Ver.VerStr();
    return Res;
 }
@@ -204,6 +209,8 @@ string debPackagesIndex::Info(const char *Type) const
    else
       Info += Dist + '/' + Section;   
    Info += " ";
+   Info += Architecture;
+   Info += " ";
    Info += Type;
    return Info;
 }
@@ -227,7 +234,7 @@ string debPackagesIndex::IndexURI(const char *Type) const
    }
    else
       Res = URI + "dists/" + Dist + '/' + Section +
-      "/binary-" + _config->Find("APT::Architecture") + '/';
+      "/binary-" + Architecture + '/';
    
    Res += Type;
    return Res;
@@ -259,7 +266,7 @@ bool debPackagesIndex::Merge(pkgCacheGenerator &Gen,OpProgress &Prog) const
 {
    string PackageFile = IndexFile("Packages");
    FileFd Pkg(PackageFile,FileFd::ReadOnly);
-   debListParser Parser(&Pkg);
+   debListParser Parser(&Pkg, Architecture);
    if (_error->PendingError() == true)
       return _error->Error("Problem opening %s",PackageFile.c_str());
    
diff --git a/apt-pkg/deb/debindexfile.h b/apt-pkg/deb/debindexfile.h
index c0e8d7d8e..766e8b214 100644
--- a/apt-pkg/deb/debindexfile.h
+++ b/apt-pkg/deb/debindexfile.h
@@ -46,6 +46,7 @@ class debPackagesIndex : public pkgIndexFile
    string URI;
    string Dist;
    string Section;
+   string Architecture;
 
    string Info(const char *Type) const;
    string IndexFile(const char *Type) const;
@@ -69,7 +70,8 @@ class debPackagesIndex : public pkgIndexFile
    virtual bool Merge(pkgCacheGenerator &Gen,OpProgress &Prog) const;
    virtual pkgCache::PkgFileIterator FindInCache(pkgCache &Cache) const;
 
-   debPackagesIndex(string URI,string Dist,string Section,bool Trusted);
+   debPackagesIndex(string const &URI, string const &Dist, string const &Section,
+			bool const &Trusted, string const &Arch = "native");
 };
 
 class debTranslationsIndex : public pkgIndexFile
diff --git a/apt-pkg/deb/deblistparser.cc b/apt-pkg/deb/deblistparser.cc
index 66108d822..5c9cf6d4b 100644
--- a/apt-pkg/deb/deblistparser.cc
+++ b/apt-pkg/deb/deblistparser.cc
@@ -31,10 +31,13 @@ static debListParser::WordList PrioList[] = {{"important",pkgCache::State::Impor
 
 // ListParser::debListParser - Constructor				/*{{{*/
 // ---------------------------------------------------------------------
-/* */
-debListParser::debListParser(FileFd *File) : Tags(File)
-{
-   Arch = _config->Find("APT::architecture");
+/* Provide an architecture and only this one and "all" will be accepted
+   in Step(), if no Architecture is given we will accept every arch
+   we would accept in general with checkArchitecture() */
+debListParser::debListParser(FileFd *File, string const &Arch) : Tags(File),
+				Arch(Arch) {
+	if (Arch == "native")
+		this->Arch = _config->Find("APT::Architecture");
 }
 									/*}}}*/
 // ListParser::UniqFindTagWrite - Find the tag and write a unq string	/*{{{*/
@@ -52,12 +55,38 @@ unsigned long debListParser::UniqFindTagWrite(const char *Tag)
 // ListParser::Package - Return the package name			/*{{{*/
 // ---------------------------------------------------------------------
 /* This is to return the name of the package this section describes */
-string debListParser::Package()
-{
-   string Result = Section.FindS("Package");
-   if (Result.empty() == true)
-      _error->Error("Encountered a section with no Package: header");
-   return Result;
+string debListParser::Package() {
+	string const Result = Section.FindS("Package");
+	if(unlikely(Result.empty() == true))
+		_error->Error("Encountered a section with no Package: header");
+	return Result;
+}
+									/*}}}*/
+// ListParser::Architecture - Return the package arch			/*{{{*/
+// ---------------------------------------------------------------------
+/* This will return the Architecture of the package this section describes
+   Note that architecture "all" packages will get the architecture of the
+   Packages file parsed here. */
+string debListParser::Architecture() {
+	string const Result = Section.FindS("Architecture");
+	if (Result.empty() == true || Result == "all") {
+		if (Arch.empty() == true)
+			/* FIXME: this is a problem for installed arch all
+			   packages as we don't know from which arch this
+			   package was installed - and therefore which
+			   dependency this package resolves. */
+			return _config->Find("APT::Architecture");
+		else
+			return Arch;
+	}
+	return Result;
+}
+									/*}}}*/
+// ListParser::ArchitectureAll						/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool debListParser::ArchitectureAll() {
+	return Section.FindS("Architecture") == "all";
 }
 									/*}}}*/
 // ListParser::Version - Return the version string			/*{{{*/
@@ -77,8 +106,31 @@ bool debListParser::NewVersion(pkgCache::VerIterator Ver)
 {
    // Parse the section
    Ver->Section = UniqFindTagWrite("Section");
-   Ver->Arch = UniqFindTagWrite("Architecture");
-   
+
+   // Parse multi-arch
+   if (Section.FindS("Architecture") == "all")
+      /* Arch all packages can't have a Multi-Arch field,
+         but we need a special treatment for them nonetheless */
+      Ver->MultiArch = pkgCache::Version::All;
+   else
+   {
+      string const MultiArch = Section.FindS("Multi-Arch");
+      if (MultiArch.empty() == true)
+	 Ver->MultiArch = pkgCache::Version::None;
+      else if (MultiArch == "same")
+	 Ver->MultiArch = pkgCache::Version::Same;
+      else if (MultiArch == "foreign")
+	 Ver->MultiArch = pkgCache::Version::Foreign;
+      else if (MultiArch == "allowed")
+	 Ver->MultiArch = pkgCache::Version::Allowed;
+      else
+      {
+	 _error->Warning("Unknown Multi-Arch type »%s« for package »%s«",
+			MultiArch.c_str(), Section.FindS("Package").c_str());
+	 Ver->MultiArch = pkgCache::Version::None;
+      }
+   }
+
    // Archive Size
    Ver->Size = (unsigned)Section.FindI("Size");
    
@@ -95,6 +147,25 @@ bool debListParser::NewVersion(pkgCache::VerIterator Ver)
 	 Ver->Priority = pkgCache::State::Extra;
    }
 
+   if (Ver->MultiArch == pkgCache::Version::All)
+   {
+      /* We maintain a "pseudo" arch=all package for architecture all versions
+	 on which these versions can depend on. This pseudo package is many used
+	 for downloading/installing: The other pseudo-packages will degenerate
+	 to a NOP in the download/install step - this package will ensure that
+	 it is downloaded only one time and installed only one time -- even if
+	 the architecture bound versions coming in and out on regular basis. */
+      bool const static multiArch = APT::Configuration::getArchitectures().size() > 1;
+      if (strcmp(Ver.Arch(true),"all") == 0)
+	 return true;
+      else if (multiArch == true)
+      {
+	 // our pseudo packages have no size to not confuse the fetcher
+	 Ver->Size = 0;
+	 Ver->InstalledSize = 0;
+      }
+   }
+
    if (ParseDepends(Ver,"Depends",pkgCache::Dep::Depends) == false)
       return false;
    if (ParseDepends(Ver,"Pre-Depends",pkgCache::Dep::PreDepends) == false)
@@ -183,8 +254,12 @@ bool debListParser::UsePackage(pkgCache::PkgIterator Pkg,
 {
    if (Pkg->Section == 0)
       Pkg->Section = UniqFindTagWrite("Section");
-   if (Section.FindFlag("Essential",Pkg->Flags,pkgCache::Flag::Essential) == false)
-      return false;
+
+   // Packages which are not from "our" arch doesn't get the essential flag
+   string const static myArch = _config->Find("APT::Architecture");
+   if (Pkg->Arch != 0 && myArch == Pkg.Arch())
+      if (Section.FindFlag("Essential",Pkg->Flags,pkgCache::Flag::Essential) == false)
+	 return false;
    if (Section.FindFlag("Important",Pkg->Flags,pkgCache::Flag::Important) == false)
       return false;
 
@@ -534,8 +609,12 @@ bool debListParser::ParseDepends(pkgCache::VerIterator Ver,
    const char *Stop;
    if (Section.Find(Tag,Start,Stop) == false)
       return true;
-   
+
+   static std::vector<std::string> const archs = APT::Configuration::getArchitectures();
+   static bool const multiArch = archs.size() <= 1;
+
    string Package;
+   string const pkgArch = Ver.Arch(true);
    string Version;
    unsigned int Op;
 
@@ -544,8 +623,18 @@ bool debListParser::ParseDepends(pkgCache::VerIterator Ver,
       Start = ParseDepends(Start,Stop,Package,Version,Op);
       if (Start == 0)
 	 return _error->Error("Problem parsing dependency %s",Tag);
-      
-      if (NewDepends(Ver,Package,Version,Op,Type) == false)
+
+      if (multiArch == true &&
+	  (Type == pkgCache::Dep::Conflicts ||
+	   Type == pkgCache::Dep::DpkgBreaks ||
+	   Type == pkgCache::Dep::Replaces))
+      {
+	 for (std::vector<std::string>::const_iterator a = archs.begin();
+	      a != archs.end(); ++a)
+	    if (NewDepends(Ver,Package,*a,Version,Op,Type) == false)
+	       return false;
+      }
+      else if (NewDepends(Ver,Package,pkgArch,Version,Op,Type) == false)
 	 return false;
       if (Start == Stop)
 	 break;
@@ -560,29 +649,52 @@ bool debListParser::ParseProvides(pkgCache::VerIterator Ver)
 {
    const char *Start;
    const char *Stop;
-   if (Section.Find("Provides",Start,Stop) == false)
-      return true;
-   
-   string Package;
-   string Version;
-   unsigned int Op;
-
-   while (1)
+   if (Section.Find("Provides",Start,Stop) == true)
    {
-      Start = ParseDepends(Start,Stop,Package,Version,Op);
-      if (Start == 0)
-	 return _error->Error("Problem parsing Provides line");
-      if (Op != pkgCache::Dep::NoOp) {
-	 _error->Warning("Ignoring Provides line with DepCompareOp for package %s", Package.c_str());
-      } else {
-	 if (NewProvides(Ver,Package,Version) == false)
-	    return false;
+      string Package;
+      string Version;
+      string const Arch = Ver.Arch(true);
+      unsigned int Op;
+
+      while (1)
+      {
+	 Start = ParseDepends(Start,Stop,Package,Version,Op);
+	 if (Start == 0)
+	    return _error->Error("Problem parsing Provides line");
+	 if (Op != pkgCache::Dep::NoOp) {
+	    _error->Warning("Ignoring Provides line with DepCompareOp for package %s", Package.c_str());
+	 } else {
+	    if (NewProvides(Ver, Package, Arch, Version) == false)
+	       return false;
+	 }
+
+	 if (Start == Stop)
+	    break;
       }
+   }
 
-      if (Start == Stop)
-	 break;
+   if (Ver->MultiArch == pkgCache::Version::Allowed)
+   {
+      string const Package = string(Ver.ParentPkg().Name()).append(":").append("any");
+      NewProvides(Ver, Package, "any", Ver.VerStr());
    }
-   
+
+   if (Ver->MultiArch != pkgCache::Version::Foreign)
+      return true;
+
+   std::vector<string> const archs = APT::Configuration::getArchitectures();
+   if (archs.size() <= 1)
+      return true;
+
+   string const Package = Ver.ParentPkg().Name();
+   string const Version = Ver.VerStr();
+   for (std::vector<string>::const_iterator a = archs.begin();
+	a != archs.end(); ++a)
+   {
+      if (NewProvides(Ver, Package, *a, Version) == false)
+	 return false;
+   }
+
    return true;
 }
 									/*}}}*/
@@ -613,16 +725,23 @@ bool debListParser::Step()
       /* See if this is the correct Architecture, if it isn't then we
          drop the whole section. A missing arch tag only happens (in theory)
          inside the Status file, so that is a positive return */
-      const char *Start;
-      const char *Stop;
-      if (Section.Find("Architecture",Start,Stop) == false)
+      string const Architecture = Section.FindS("Architecture");
+      if (Architecture.empty() == true)
 	 return true;
 
-      if (stringcmp(Arch,Start,Stop) == 0)
-	 return true;
+      if (Arch.empty() == true)
+      {
+	 if (APT::Configuration::checkArchitecture(Architecture) == true)
+	    return true;
+      }
+      else
+      {
+	 if (Architecture == Arch)
+	    return true;
 
-      if (stringcmp(Start,Stop,"all") == 0)
-	 return true;
+	 if (Architecture == "all")
+	    return true;
+      }
 
       iOffset = Tags.Offset();
    }   
@@ -640,8 +759,9 @@ bool debListParser::LoadReleaseInfo(pkgCache::PkgFileIterator FileI,
    if (Tags.Step(Section) == false)
       return false;
 
-   //mvo: I don't think we need to fill that in (it's unused since apt-0.6)
-   //FileI->Architecture = WriteUniqString(Arch);
+   // FIXME: Do we need it now for multi-arch?
+   // mvo: I don't think we need to fill that in (it's unused since apt-0.6)
+//    FileI->Architecture = WriteUniqString(Arch);
    
    // apt-secure does no longer download individual (per-section) Release
    // file. to provide Component pinning we use the section name now
diff --git a/apt-pkg/deb/deblistparser.h b/apt-pkg/deb/deblistparser.h
index 1c709229f..8da051530 100644
--- a/apt-pkg/deb/deblistparser.h
+++ b/apt-pkg/deb/deblistparser.h
@@ -46,6 +46,8 @@ class debListParser : public pkgCacheGenerator::ListParser
       
    // These all operate against the current section
    virtual string Package();
+   virtual string Architecture();
+   virtual bool ArchitectureAll();
    virtual string Version();
    virtual bool NewVersion(pkgCache::VerIterator Ver);
    virtual string Description();
@@ -68,7 +70,7 @@ class debListParser : public pkgCacheGenerator::ListParser
 			    bool const &StripMultiArch = false);
    static const char *ConvertRelation(const char *I,unsigned int &Op);
 
-   debListParser(FileFd *File);
+   debListParser(FileFd *File, string const &Arch = "");
 };
 
 #endif
diff --git a/apt-pkg/deb/debmetaindex.cc b/apt-pkg/deb/debmetaindex.cc
index 520e94a80..947a7f04b 100644
--- a/apt-pkg/deb/debmetaindex.cc
+++ b/apt-pkg/deb/debmetaindex.cc
@@ -8,9 +8,11 @@
 #include <apt-pkg/aptconfiguration.h>
 #include <apt-pkg/error.h>
 
+#include <set>
+
 using namespace std;
 
-string debReleaseIndex::Info(const char *Type, const string Section) const
+string debReleaseIndex::Info(const char *Type, string const &Section, string const &Arch) const
 {
    string Info = ::URI::SiteOnly(URI) + ' ';
    if (Dist[Dist.size() - 1] == '/')
@@ -19,7 +21,11 @@ string debReleaseIndex::Info(const char *Type, const string Section) const
          Info += Dist;
    }
    else
-      Info += Dist + '/' + Section;   
+   {
+      Info += Dist + '/' + Section;
+      if (Arch.empty() == true)
+	 Info += " " + Arch;
+   }
    Info += " ";
    Info += Type;
    return Info;
@@ -61,16 +67,21 @@ string debReleaseIndex::MetaIndexURI(const char *Type) const
    return Res;
 }
 
-string debReleaseIndex::IndexURISuffix(const char *Type, const string Section) const
+string debReleaseIndex::IndexURISuffix(const char *Type, string const &Section, string const &Arch) const
 {
    string Res ="";
    if (Dist[Dist.size() - 1] != '/')
-      Res += Section + "/binary-" + _config->Find("APT::Architecture") + '/';
+   {
+      if (Arch == "native")
+	 Res += Section + "/binary-" + _config->Find("APT::Architecture") + '/';
+      else
+	 Res += Section + "/binary-" + Arch + '/';
+   }
    return Res + Type;
 }
    
 
-string debReleaseIndex::IndexURI(const char *Type, const string Section) const
+string debReleaseIndex::IndexURI(const char *Type, string const &Section, string const &Arch) const
 {
    if (Dist[Dist.size() - 1] == '/')
    {
@@ -82,10 +93,10 @@ string debReleaseIndex::IndexURI(const char *Type, const string Section) const
       return Res + Type;
    }
    else
-      return URI + "dists/" + Dist + '/' + IndexURISuffix(Type, Section);
+      return URI + "dists/" + Dist + '/' + IndexURISuffix(Type, Section, Arch);
  }
 
-string debReleaseIndex::SourceIndexURISuffix(const char *Type, const string Section) const
+string debReleaseIndex::SourceIndexURISuffix(const char *Type, const string &Section) const
 {
    string Res ="";
    if (Dist[Dist.size() - 1] != '/')
@@ -93,7 +104,7 @@ string debReleaseIndex::SourceIndexURISuffix(const char *Type, const string Sect
    return Res + Type;
 }
 
-string debReleaseIndex::SourceIndexURI(const char *Type, const string Section) const
+string debReleaseIndex::SourceIndexURI(const char *Type, const string &Section) const
 {
    string Res;
    if (Dist[Dist.size() - 1] == '/')
@@ -108,44 +119,61 @@ string debReleaseIndex::SourceIndexURI(const char *Type, const string Section) c
       return URI + "dists/" + Dist + "/" + SourceIndexURISuffix(Type, Section);
 }
 
-debReleaseIndex::debReleaseIndex(string URI,string Dist)
-{
-   this->URI = URI;
-   this->Dist = Dist;
-   this->Indexes = NULL;
-   this->Type = "deb";
+debReleaseIndex::debReleaseIndex(string const &URI, string const &Dist) {
+	this->URI = URI;
+	this->Dist = Dist;
+	this->Indexes = NULL;
+	this->Type = "deb";
 }
 
-debReleaseIndex::~debReleaseIndex()
-{
-   for (vector<const debSectionEntry *>::const_iterator I = SectionEntries.begin();
-	I != SectionEntries.end(); I++)
-      delete *I;
+debReleaseIndex::~debReleaseIndex() {
+	for (map<string, vector<debSectionEntry const*> >::const_iterator A = ArchEntries.begin();
+	     A != ArchEntries.end(); ++A)
+		for (vector<const debSectionEntry *>::const_iterator S = A->second.begin();
+		     S != A->second.end(); ++S)
+			delete *S;
 }
 
-vector <struct IndexTarget *>* debReleaseIndex::ComputeIndexTargets() const
-{
-   vector <struct IndexTarget *>* IndexTargets = new vector <IndexTarget *>;
-   for (vector <const debSectionEntry *>::const_iterator I = SectionEntries.begin();
-	I != SectionEntries.end();
-	I++)
-   {
-      IndexTarget * Target = new IndexTarget();
-      Target->ShortDesc = (*I)->IsSrc ? "Sources" : "Packages";
-      Target->MetaKey
-	= (*I)->IsSrc ? SourceIndexURISuffix(Target->ShortDesc.c_str(), (*I)->Section)
-	              : IndexURISuffix(Target->ShortDesc.c_str(), (*I)->Section);
-      Target->URI 
-	= (*I)->IsSrc ? SourceIndexURI(Target->ShortDesc.c_str(), (*I)->Section)
-	              : IndexURI(Target->ShortDesc.c_str(), (*I)->Section);
-      
-      Target->Description = Info (Target->ShortDesc.c_str(), (*I)->Section);
-      IndexTargets->push_back (Target);
-   }
-   return IndexTargets;
+vector <struct IndexTarget *>* debReleaseIndex::ComputeIndexTargets() const {
+	vector <struct IndexTarget *>* IndexTargets = new vector <IndexTarget *>;
+
+	map<string, vector<debSectionEntry const*> >::const_iterator const src = ArchEntries.find("source");
+	if (src != ArchEntries.end()) {
+		vector<debSectionEntry const*> const SectionEntries = src->second;
+		for (vector<debSectionEntry const*>::const_iterator I = SectionEntries.begin();
+		     I != SectionEntries.end(); ++I) {
+			IndexTarget * Target = new IndexTarget();
+			Target->ShortDesc = "Sources";
+			Target->MetaKey = SourceIndexURISuffix(Target->ShortDesc.c_str(), (*I)->Section);
+			Target->URI = SourceIndexURI(Target->ShortDesc.c_str(), (*I)->Section);
+			Target->Description = Info (Target->ShortDesc.c_str(), (*I)->Section);
+			IndexTargets->push_back (Target);
+		}
+	}
+
+	// Only source release
+	if (IndexTargets->empty() == false && ArchEntries.size() == 1)
+		return IndexTargets;
+
+	for (map<string, vector<debSectionEntry const*> >::const_iterator a = ArchEntries.begin();
+	     a != ArchEntries.end(); ++a) {
+		if (a->first == "source")
+			continue;
+		for (vector <const debSectionEntry *>::const_iterator I = a->second.begin();
+		     I != a->second.end(); ++I) {
+			IndexTarget * Target = new IndexTarget();
+			Target->ShortDesc = "Packages";
+			Target->MetaKey = IndexURISuffix(Target->ShortDesc.c_str(), (*I)->Section, a->first);
+			Target->URI = IndexURI(Target->ShortDesc.c_str(), (*I)->Section, a->first);
+			Target->Description = Info (Target->ShortDesc.c_str(), (*I)->Section, a->first);
+			IndexTargets->push_back (Target);
+		}
+	}
+
+	return IndexTargets;
 }
 									/*}}}*/
-bool debReleaseIndex::GetIndexes(pkgAcquire *Owner, bool GetAll) const
+bool debReleaseIndex::GetIndexes(pkgAcquire *Owner, bool const &GetAll) const
 {
    // special case for --print-uris
    if (GetAll) {
@@ -170,24 +198,28 @@ bool debReleaseIndex::GetIndexes(pkgAcquire *Owner, bool GetAll) const
 		     ComputeIndexTargets(),
 		     new indexRecords (Dist));
 
-   // Queue the translations
-   std::vector<std::string> const lang = APT::Configuration::getLanguages(true);
-   for (vector<const debSectionEntry *>::const_iterator I = SectionEntries.begin(); 
-	I != SectionEntries.end(); I++) {
-
-      if((*I)->IsSrc)
-	 continue;
-
-      for (vector<string>::const_iterator l = lang.begin();
-		l != lang.end(); l++)
-      {
-	if (*l == "none") continue;
-	debTranslationsIndex i = debTranslationsIndex(URI,Dist,(*I)->Section,(*l).c_str());
-	i.GetIndexes(Owner);
-      }
-   }
-
-   return true;
+	// Queue the translations
+	std::vector<std::string> const lang = APT::Configuration::getLanguages(true);
+	map<string, set<string> > sections;
+	for (map<string, vector<debSectionEntry const*> >::const_iterator a = ArchEntries.begin();
+	     a != ArchEntries.end(); ++a) {
+		if (a->first == "source")
+			continue;
+		for (vector<debSectionEntry const*>::const_iterator I = a->second.begin();
+		     I != a->second.end(); I++)
+			sections[(*I)->Section].insert(lang.begin(), lang.end());
+	}
+
+	for (map<string, set<string> >::const_iterator s = sections.begin();
+	     s != sections.end(); ++s)
+		for (set<string>::const_iterator l = s->second.begin();
+		     l != s->second.end(); l++) {
+			if (*l == "none") continue;
+			debTranslationsIndex i = debTranslationsIndex(URI,Dist,s->first,(*l).c_str());
+			i.GetIndexes(Owner);
+		}
+
+	return true;
 }
 
 bool debReleaseIndex::IsTrusted() const
@@ -204,73 +236,113 @@ bool debReleaseIndex::IsTrusted() const
    return false;
 }
 
-vector <pkgIndexFile *> *debReleaseIndex::GetIndexFiles()
-{
-   if (Indexes != NULL)
-      return Indexes;
-
-   Indexes = new vector <pkgIndexFile*>;
-   std::vector<std::string> const lang = APT::Configuration::getLanguages(true);
-   for (vector<const debSectionEntry *>::const_iterator I = SectionEntries.begin(); 
-	I != SectionEntries.end(); I++) {
-      if ((*I)->IsSrc)
-         Indexes->push_back(new debSourcesIndex (URI, Dist, (*I)->Section, IsTrusted()));
-      else 
-      {
-         Indexes->push_back(new debPackagesIndex (URI, Dist, (*I)->Section, IsTrusted()));
-
-	 for (vector<string>::const_iterator l = lang.begin();
-		l != lang.end(); l++) {
-	    if (*l == "none") continue;
-	    Indexes->push_back(new debTranslationsIndex(URI,Dist,(*I)->Section,(*l).c_str()));
-	 }
-      }
-   }
+vector <pkgIndexFile *> *debReleaseIndex::GetIndexFiles() {
+	if (Indexes != NULL)
+		return Indexes;
+
+	Indexes = new vector <pkgIndexFile*>;
+	map<string, vector<debSectionEntry const*> >::const_iterator const src = ArchEntries.find("source");
+	if (src != ArchEntries.end()) {
+		vector<debSectionEntry const*> const SectionEntries = src->second;
+		for (vector<debSectionEntry const*>::const_iterator I = SectionEntries.begin();
+		     I != SectionEntries.end(); I++)
+			Indexes->push_back(new debSourcesIndex (URI, Dist, (*I)->Section, IsTrusted()));
+	}
+
+	// Only source release
+	if (Indexes->empty() == false && ArchEntries.size() == 1)
+		return Indexes;
+
+	std::vector<std::string> const lang = APT::Configuration::getLanguages(true);
+	map<string, set<string> > sections;
+	for (map<string, vector<debSectionEntry const*> >::const_iterator a = ArchEntries.begin();
+	     a != ArchEntries.end(); ++a) {
+		if (a->first == "source")
+			continue;
+		for (vector<debSectionEntry const*>::const_iterator I = a->second.begin();
+		     I != a->second.end(); I++) {
+			Indexes->push_back(new debPackagesIndex (URI, Dist, (*I)->Section, IsTrusted(), a->first));
+			sections[(*I)->Section].insert(lang.begin(), lang.end());
+		}
+	}
+
+	for (map<string, set<string> >::const_iterator s = sections.begin();
+	     s != sections.end(); ++s)
+		for (set<string>::const_iterator l = s->second.begin();
+		     l != s->second.end(); l++) {
+			if (*l == "none") continue;
+			Indexes->push_back(new debTranslationsIndex(URI,Dist,s->first,(*l).c_str()));
+		}
+
+	return Indexes;
+}
 
-   return Indexes;
+void debReleaseIndex::PushSectionEntry(vector<string> const &Archs, const debSectionEntry *Entry) {
+	for (vector<string>::const_iterator a = Archs.begin();
+	     a != Archs.end(); ++a)
+		ArchEntries[*a].push_back(new debSectionEntry(Entry->Section, Entry->IsSrc));
+	delete Entry;
 }
 
-void debReleaseIndex::PushSectionEntry(const debSectionEntry *Entry)
-{
-   SectionEntries.push_back(Entry);
+void debReleaseIndex::PushSectionEntry(string const &Arch, const debSectionEntry *Entry) {
+	ArchEntries[Arch].push_back(Entry);
 }
 
-debReleaseIndex::debSectionEntry::debSectionEntry (string Section, bool IsSrc): Section(Section)
-{
-   this->IsSrc = IsSrc;
+void debReleaseIndex::PushSectionEntry(const debSectionEntry *Entry) {
+	if (Entry->IsSrc == true)
+		PushSectionEntry("source", Entry);
+	else {
+		for (map<string, vector<const debSectionEntry *> >::iterator a = ArchEntries.begin();
+		     a != ArchEntries.end(); ++a) {
+			a->second.push_back(Entry);
+		}
+	}
 }
 
+debReleaseIndex::debSectionEntry::debSectionEntry (string const &Section,
+		bool const &IsSrc): Section(Section), IsSrc(IsSrc)
+{}
+
 class debSLTypeDebian : public pkgSourceList::Type
 {
    protected:
 
-   bool CreateItemInternal(vector<metaIndex *> &List,string URI,
-			   string Dist,string Section,
-			   bool IsSrc) const
+   bool CreateItemInternal(vector<metaIndex *> &List, string const &URI,
+			   string const &Dist, string const &Section,
+			   bool const &IsSrc, map<string, string> const &Options) const
    {
-      for (vector<metaIndex *>::const_iterator I = List.begin(); 
+      map<string, string>::const_iterator const arch = Options.find("arch");
+      vector<string> const Archs =
+		(arch != Options.end()) ? ExplodeString(arch->second, ',') :
+				APT::Configuration::getArchitectures();
+
+      for (vector<metaIndex *>::const_iterator I = List.begin();
 	   I != List.end(); I++)
       {
-	 // This check insures that there will be only one Release file
-	 // queued for all the Packages files and Sources files it
-	 // corresponds to.
-		if (strcmp((*I)->GetType(), "deb") == 0)
+	 // We only worry about debian entries here
+	 if (strcmp((*I)->GetType(), "deb") != 0)
+	    continue;
+
+	 debReleaseIndex *Deb = (debReleaseIndex *) (*I);
+	 /* This check insures that there will be only one Release file
+	    queued for all the Packages files and Sources files it
+	    corresponds to. */
+	 if (Deb->GetURI() == URI && Deb->GetDist() == Dist)
 	 {
-	    debReleaseIndex *Deb = (debReleaseIndex *) (*I);
-	    // This check insures that there will be only one Release file
-	    // queued for all the Packages files and Sources files it
-	    // corresponds to.
-	    if (Deb->GetURI() == URI && Deb->GetDist() == Dist)
-	    {
-	       Deb->PushSectionEntry(new debReleaseIndex::debSectionEntry(Section, IsSrc));
-	       return true;
-	    }
+	    if (IsSrc == true)
+	       Deb->PushSectionEntry("source", new debReleaseIndex::debSectionEntry(Section, IsSrc));
+	    else
+	       Deb->PushSectionEntry(Archs, new debReleaseIndex::debSectionEntry(Section, IsSrc));
+	    return true;
 	 }
       }
       // No currently created Release file indexes this entry, so we create a new one.
       // XXX determine whether this release is trusted or not
-      debReleaseIndex *Deb = new debReleaseIndex(URI,Dist);
-      Deb->PushSectionEntry (new debReleaseIndex::debSectionEntry(Section, IsSrc));
+      debReleaseIndex *Deb = new debReleaseIndex(URI, Dist);
+      if (IsSrc == true)
+	 Deb->PushSectionEntry ("source", new debReleaseIndex::debSectionEntry(Section, IsSrc));
+      else
+	 Deb->PushSectionEntry (Archs, new debReleaseIndex::debSectionEntry(Section, IsSrc));
       List.push_back(Deb);
       return true;
    }
@@ -280,10 +352,11 @@ class debSLTypeDeb : public debSLTypeDebian
 {
    public:
 
-   bool CreateItem(vector<metaIndex *> &List,string URI,
-		   string Dist,string Section) const
+   bool CreateItem(vector<metaIndex *> &List, string const &URI,
+		   string const &Dist, string const &Section,
+		   std::map<string, string> const &Options) const
    {
-      return CreateItemInternal(List, URI, Dist, Section, false);
+      return CreateItemInternal(List, URI, Dist, Section, false, Options);
    }
 
    debSLTypeDeb()
@@ -297,10 +370,11 @@ class debSLTypeDebSrc : public debSLTypeDebian
 {
    public:
 
-   bool CreateItem(vector<metaIndex *> &List,string URI,
-		   string Dist,string Section) const 
+   bool CreateItem(vector<metaIndex *> &List, string const &URI,
+		   string const &Dist, string const &Section,
+		   std::map<string, string> const &Options) const
    {
-      return CreateItemInternal(List, URI, Dist, Section, true);
+      return CreateItemInternal(List, URI, Dist, Section, true, Options);
    }
    
    debSLTypeDebSrc()
diff --git a/apt-pkg/deb/debmetaindex.h b/apt-pkg/deb/debmetaindex.h
index 8e6a1463b..360fa5419 100644
--- a/apt-pkg/deb/debmetaindex.h
+++ b/apt-pkg/deb/debmetaindex.h
@@ -5,40 +5,44 @@
 #include <apt-pkg/metaindex.h>
 #include <apt-pkg/sourcelist.h>
 
+#include <map>
+
 class debReleaseIndex : public metaIndex {
    public:
 
    class debSectionEntry
    {
       public:
-      debSectionEntry (string Section, bool IsSrc);
-      bool IsSrc;
-      string Section;
+      debSectionEntry (string const &Section, bool const &IsSrc);
+      string const Section;
+      bool const IsSrc;
    };
 
    private:
-   vector <const debSectionEntry *> SectionEntries;
+   std::map<string, vector<debSectionEntry const*> > ArchEntries;
 
    public:
 
-   debReleaseIndex(string URI, string Dist);
+   debReleaseIndex(string const &URI, string const &Dist);
    ~debReleaseIndex();
 
-   virtual string ArchiveURI(string File) const {return URI + File;};
-   virtual bool GetIndexes(pkgAcquire *Owner, bool GetAll=false) const;
+   virtual string ArchiveURI(string const &File) const {return URI + File;};
+   virtual bool GetIndexes(pkgAcquire *Owner, bool const &GetAll=false) const;
    vector <struct IndexTarget *>* ComputeIndexTargets() const;
-   string Info(const char *Type, const string Section) const;
+   string Info(const char *Type, string const &Section, string const &Arch="") const;
    string MetaIndexInfo(const char *Type) const;
    string MetaIndexFile(const char *Types) const;
    string MetaIndexURI(const char *Type) const;
-   string IndexURI(const char *Type, const string Section) const;
-   string IndexURISuffix(const char *Type, const string Section) const;
-   string SourceIndexURI(const char *Type, const string Section) const;
-   string SourceIndexURISuffix(const char *Type, const string Section) const;
+   string IndexURI(const char *Type, string const &Section, string const &Arch="native") const;
+   string IndexURISuffix(const char *Type, string const &Section, string const &Arch="native") const;
+   string SourceIndexURI(const char *Type, const string &Section) const;
+   string SourceIndexURISuffix(const char *Type, const string &Section) const;
    virtual vector <pkgIndexFile *> *GetIndexFiles();
 
    virtual bool IsTrusted() const;
 
+   void PushSectionEntry(vector<string> const &Archs, const debSectionEntry *Entry);
+   void PushSectionEntry(string const &Arch, const debSectionEntry *Entry);
    void PushSectionEntry(const debSectionEntry *Entry);
 };